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Y. Aslan
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61 records found
1
Journal article
(2026)
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F.T. Çelik, Alexander Yarovoy, Y. Aslan
This paper presents a novel heatsink antenna array architecture that addresses electromagnetic (EM) performance, antenna miniaturization, and thermal management challenges in antenna-on-substrate (AoS) configurations. By integrating tilted fin heatsinks onto rectangular patch antennas, the proposed unit element improves convective cooling while maintaining desirable radiation characteristics. A parametric analysis demonstrates that optimizing the fin tilt angle results in an 8% reduction in the resonant frequency, effectively miniaturizing the antenna. To further enhance array performance, complementary split ring resonator (CSRR) walls are introduced between elements.
These structures significantly reduce mutual coupling (from approximately −9 dB to −15 dB) and more than double the impedance bandwidth, increasing it from 3.3% to 7.5%. The results confirm improved radiation performance with a 12.7% operational radiation pattern bandwidth centered at 24 GHz and stable gain across scan angles. On the thermal side, distributed chip placement and enhanced convective paths reduce chip temperatures from 97.3 ◦C to 70.3 ◦C for 1W heat power per chip, and from 171.7 ◦C to 138.9 ◦C for 2W heat power per chip under forced airflow conditions compared to the standard patch array. The proposed dual-functional design provides an efficient and compact solution for future high-power and thermally constrained antenna systems, with promising applications in 5G, radar, and mm-wave communication. ...
These structures significantly reduce mutual coupling (from approximately −9 dB to −15 dB) and more than double the impedance bandwidth, increasing it from 3.3% to 7.5%. The results confirm improved radiation performance with a 12.7% operational radiation pattern bandwidth centered at 24 GHz and stable gain across scan angles. On the thermal side, distributed chip placement and enhanced convective paths reduce chip temperatures from 97.3 ◦C to 70.3 ◦C for 1W heat power per chip, and from 171.7 ◦C to 138.9 ◦C for 2W heat power per chip under forced airflow conditions compared to the standard patch array. The proposed dual-functional design provides an efficient and compact solution for future high-power and thermally constrained antenna systems, with promising applications in 5G, radar, and mm-wave communication. ...
This paper presents a novel heatsink antenna array architecture that addresses electromagnetic (EM) performance, antenna miniaturization, and thermal management challenges in antenna-on-substrate (AoS) configurations. By integrating tilted fin heatsinks onto rectangular patch antennas, the proposed unit element improves convective cooling while maintaining desirable radiation characteristics. A parametric analysis demonstrates that optimizing the fin tilt angle results in an 8% reduction in the resonant frequency, effectively miniaturizing the antenna. To further enhance array performance, complementary split ring resonator (CSRR) walls are introduced between elements.
These structures significantly reduce mutual coupling (from approximately −9 dB to −15 dB) and more than double the impedance bandwidth, increasing it from 3.3% to 7.5%. The results confirm improved radiation performance with a 12.7% operational radiation pattern bandwidth centered at 24 GHz and stable gain across scan angles. On the thermal side, distributed chip placement and enhanced convective paths reduce chip temperatures from 97.3 ◦C to 70.3 ◦C for 1W heat power per chip, and from 171.7 ◦C to 138.9 ◦C for 2W heat power per chip under forced airflow conditions compared to the standard patch array. The proposed dual-functional design provides an efficient and compact solution for future high-power and thermally constrained antenna systems, with promising applications in 5G, radar, and mm-wave communication.
These structures significantly reduce mutual coupling (from approximately −9 dB to −15 dB) and more than double the impedance bandwidth, increasing it from 3.3% to 7.5%. The results confirm improved radiation performance with a 12.7% operational radiation pattern bandwidth centered at 24 GHz and stable gain across scan angles. On the thermal side, distributed chip placement and enhanced convective paths reduce chip temperatures from 97.3 ◦C to 70.3 ◦C for 1W heat power per chip, and from 171.7 ◦C to 138.9 ◦C for 2W heat power per chip under forced airflow conditions compared to the standard patch array. The proposed dual-functional design provides an efficient and compact solution for future high-power and thermally constrained antenna systems, with promising applications in 5G, radar, and mm-wave communication.
Conference paper
(2025)
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F. T. Celik, C. Fager, A. Yarovoy, Y. Aslan
A novel electro-thermal model at the unit-cell level for active phased arrays is proposed to establish a link between the power amplifier (PA) output signal and its junction temperature. The iterative model is developed in four stages: (i) calculation of the PA output, (ii) computation of the dissipated power of the PA, (iii) thermal simulation for temperature assessment, and (iv) update on the PA output with the new temperature. These steps are repeated until the PA temperature is convergent. The use of the model is demonstrated with an amplitude-tapered 16-element array of single-stage class-A amplifier and patch antenna unit-cells at 2.14 GHz. It is observed that the inclusion of the temperature effects in the array pattern causes around a 2 dB drop in the radiated power, while the peak side lobe level (SLL) increases by up to 7.75 dB for 40 dB Taylor tapering.
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A novel electro-thermal model at the unit-cell level for active phased arrays is proposed to establish a link between the power amplifier (PA) output signal and its junction temperature. The iterative model is developed in four stages: (i) calculation of the PA output, (ii) computation of the dissipated power of the PA, (iii) thermal simulation for temperature assessment, and (iv) update on the PA output with the new temperature. These steps are repeated until the PA temperature is convergent. The use of the model is demonstrated with an amplitude-tapered 16-element array of single-stage class-A amplifier and patch antenna unit-cells at 2.14 GHz. It is observed that the inclusion of the temperature effects in the array pattern causes around a 2 dB drop in the radiated power, while the peak side lobe level (SLL) increases by up to 7.75 dB for 40 dB Taylor tapering.
Journal article
(2025)
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Aparna Kannan, Nehir Berk Onat, Marco Spirito Alexander Yarovoy, Yanki Aslan
In this contribution, we analyze machine learning-assisted solutions to tackle real-time fault detection in large-scale active phased array antennas. The challenge of integrating the circuit component nonlinearities and mutual coupling effects in fault-finding methodologies is addressed. A novel machine learning (ML) solution based on an array theory-enhanced neural network (NN) is proposed. To address the practical constraints of large array measurements, sparse far-field (FF) measurements are considered. The method is experimentally verified by applying it to fault detection in a 64-element planar phased array prototype operating at 26 GHz with far-field measurements collected by a fixed high-speed multi-probe pattern acquisition setup, the Antenna Dome. Significant improvement in fault prediction performance over a conventional Genetic Algorithm (GA) based heuristic approach with improvements of up to 40%, 25%, and 20% in predicting 8-, 4-, and 2-element faults, respectively, is demonstrated. The robustness of the proposed performance with respect to the number of 3D spatial field sampling points is shown, offering efficient diagnostics with in-field pattern sampling compatibility and low hardware complexity.
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In this contribution, we analyze machine learning-assisted solutions to tackle real-time fault detection in large-scale active phased array antennas. The challenge of integrating the circuit component nonlinearities and mutual coupling effects in fault-finding methodologies is addressed. A novel machine learning (ML) solution based on an array theory-enhanced neural network (NN) is proposed. To address the practical constraints of large array measurements, sparse far-field (FF) measurements are considered. The method is experimentally verified by applying it to fault detection in a 64-element planar phased array prototype operating at 26 GHz with far-field measurements collected by a fixed high-speed multi-probe pattern acquisition setup, the Antenna Dome. Significant improvement in fault prediction performance over a conventional Genetic Algorithm (GA) based heuristic approach with improvements of up to 40%, 25%, and 20% in predicting 8-, 4-, and 2-element faults, respectively, is demonstrated. The robustness of the proposed performance with respect to the number of 3D spatial field sampling points is shown, offering efficient diagnostics with in-field pattern sampling compatibility and low hardware complexity.
A novel element polarization optimization and phase quantization technique is proposed for the low-cost synthesis of three polarizations from active phased arrays. The horizontally (H) and vertically (V) polarized element ports are optimally combined with a fixed phase shift between them. For algorithm demonstration, pattern constraints for H, V, and an arbitrary third polarization, left-handed circular polarization (LHCP), are embedded in the goal function in a 16 by 16 array. It is demonstrated that including the LHCP in the optimization significantly improves its gain and side lobe levels, compared to when it is not included, at the cost of a slight reduction in the gain of the H/V polarized patterns. The side lobe and cross-polarization levels of H/V polarized patterns remain similar.
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A novel element polarization optimization and phase quantization technique is proposed for the low-cost synthesis of three polarizations from active phased arrays. The horizontally (H) and vertically (V) polarized element ports are optimally combined with a fixed phase shift between them. For algorithm demonstration, pattern constraints for H, V, and an arbitrary third polarization, left-handed circular polarization (LHCP), are embedded in the goal function in a 16 by 16 array. It is demonstrated that including the LHCP in the optimization significantly improves its gain and side lobe levels, compared to when it is not included, at the cost of a slight reduction in the gain of the H/V polarized patterns. The side lobe and cross-polarization levels of H/V polarized patterns remain similar.
Conference paper
(2025)
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J. Heylen, G. Theis, R. v. der Meer, Y. Aslan, A. Yarovoy
The challenge of polarimetric coupling in phased array weather radars is explained, along with the resulting requirements. For the first time, state-of-the-art mitigation techniques on the system, hardware and software level are discussed together along with their achievements and shortcomings. An outlook is made toward future developments and applications, including integrated weather sensing and communications.
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The challenge of polarimetric coupling in phased array weather radars is explained, along with the resulting requirements. For the first time, state-of-the-art mitigation techniques on the system, hardware and software level are discussed together along with their achievements and shortcomings. An outlook is made toward future developments and applications, including integrated weather sensing and communications.
Conference paper
(2025)
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Feza Turgay Celik, Alexander Yarovoy, Yanki Aslan
An antenna array with dual-functionality - electromagnetic radiation and thermal cooling - is proposed. An iterative array design procedure is developed to improve cooling, mutual coupling, side lobe levels, and gain levels in dual-functional antenna arrays with adaptive beam steering. Heatsink-attached patch elements are combined with complementary split ring resonator (CSRR) structures in between the elements, resulting in a novel modular heatsink antenna array. Based on the proposed design, the beam scanning performances of four-element and eight-element linear arrays at 26 GHz are studied. A conventional shorted patch antenna array is used for benchmarking. Through thermal and electromagnetic simulations, it is demonstrated that the proposed antenna array decreases the maximal array temperature by more than 40°C as compared to the benchmark. Moreover, the new design resolves the pattern performance degradation problems in heatsink arrays, while approaching to the electromagnetic performance of the benchmarked array.
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An antenna array with dual-functionality - electromagnetic radiation and thermal cooling - is proposed. An iterative array design procedure is developed to improve cooling, mutual coupling, side lobe levels, and gain levels in dual-functional antenna arrays with adaptive beam steering. Heatsink-attached patch elements are combined with complementary split ring resonator (CSRR) structures in between the elements, resulting in a novel modular heatsink antenna array. Based on the proposed design, the beam scanning performances of four-element and eight-element linear arrays at 26 GHz are studied. A conventional shorted patch antenna array is used for benchmarking. Through thermal and electromagnetic simulations, it is demonstrated that the proposed antenna array decreases the maximal array temperature by more than 40°C as compared to the benchmark. Moreover, the new design resolves the pattern performance degradation problems in heatsink arrays, while approaching to the electromagnetic performance of the benchmarked array.
Conference paper
(2025)
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T. Dash, N. B. Onat, Y. Aslan, A. Yarovoy
The reconstruction of Embedded Element Patterns (EEP) in an array of antennas is presented as an attempt to understand the effects of Mutual Coupling (MC) among the antenna elements. The EEP far fields are modeled with a weighted sum of orthonormal spherical harmonic basis functions (explained by their mode numbers). The weight of each significantly contributing mode is estimated by the Singular Value Decomposition (SVD) approach. A practical example of a non-uniform array of circular patch antennas is considered for analyzing the significant contributing modes. Although the values of the weights of the modes are different for each antenna element in the array, the contributing modes remain very similar for all the elements, indicating that the mutual coupling can be sufficiently explained by a limited number of variables (weights) corresponding to limited spherical harmonic modes. The reconstructed patterns are validated by comparing them with full-wave simulation results.
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The reconstruction of Embedded Element Patterns (EEP) in an array of antennas is presented as an attempt to understand the effects of Mutual Coupling (MC) among the antenna elements. The EEP far fields are modeled with a weighted sum of orthonormal spherical harmonic basis functions (explained by their mode numbers). The weight of each significantly contributing mode is estimated by the Singular Value Decomposition (SVD) approach. A practical example of a non-uniform array of circular patch antennas is considered for analyzing the significant contributing modes. Although the values of the weights of the modes are different for each antenna element in the array, the contributing modes remain very similar for all the elements, indicating that the mutual coupling can be sufficiently explained by a limited number of variables (weights) corresponding to limited spherical harmonic modes. The reconstructed patterns are validated by comparing them with full-wave simulation results.
Conference paper
(2025)
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Nick Cancrinus, Yanki Aslan, Alvaro Diaz-Bolado, Samer Medawar, Alessandro Matheoud, Alexander Yarovoy
A novel receiver front-end simulation model is proposed to perform a systematic analysis of signal- and noise levels, SNR degradation, system IP1dB compression point and power consumption. The model is applied to a fully digital receiver in a K-band SatCom use-case. Using this simulation model, key design trade-offs in component properties, multiplebeam forming architectures and power consumption are jointly identified and visualized.
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A novel receiver front-end simulation model is proposed to perform a systematic analysis of signal- and noise levels, SNR degradation, system IP1dB compression point and power consumption. The model is applied to a fully digital receiver in a K-band SatCom use-case. Using this simulation model, key design trade-offs in component properties, multiplebeam forming architectures and power consumption are jointly identified and visualized.
The throughput performance of intelligently shaped and fixed analog elevation beam patterns in millimeter-wave (mm-wave) base stations with hybrid beamforming (HBF) is assessed for the first time. Distinct spatially heterogeneous user distributions (i.e., uniform, near-site, cell-edge, and weighted uniform and near-site) and propagation environments (i.e., line-of-sight (LoS) with multipath and non-line-of-sight (NLoS) with multipath) are considered. The cosecant-squared and flat-top shaped beam patterns are compared to the benchmark pencil beam pattern with a straightforward electrical downtilt. The LoS simulation results show that in case of unknown weight of user distribution scenarios, the cosecant-squared pattern is the most robust, with a gain of up to 16% in the average system throughput and up to 34% in the 90th percentile user throughout compared to the benchmark. If the near-site case has a greater probability of occurrence than the uniform user distribution (e.g., due to daily events and festivals), the flat-top pattern becomes preferable. In the NLoS scenario, the considered HBF architectures with elevation beam pattern shaping do not bring any performance disadvantages compared to the benchmark HBF.
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The throughput performance of intelligently shaped and fixed analog elevation beam patterns in millimeter-wave (mm-wave) base stations with hybrid beamforming (HBF) is assessed for the first time. Distinct spatially heterogeneous user distributions (i.e., uniform, near-site, cell-edge, and weighted uniform and near-site) and propagation environments (i.e., line-of-sight (LoS) with multipath and non-line-of-sight (NLoS) with multipath) are considered. The cosecant-squared and flat-top shaped beam patterns are compared to the benchmark pencil beam pattern with a straightforward electrical downtilt. The LoS simulation results show that in case of unknown weight of user distribution scenarios, the cosecant-squared pattern is the most robust, with a gain of up to 16% in the average system throughput and up to 34% in the 90th percentile user throughout compared to the benchmark. If the near-site case has a greater probability of occurrence than the uniform user distribution (e.g., due to daily events and festivals), the flat-top pattern becomes preferable. In the NLoS scenario, the considered HBF architectures with elevation beam pattern shaping do not bring any performance disadvantages compared to the benchmark HBF.
A novel over-the-air (OTA) measurement setup for simultaneous and near-real-time characterization and mapping of the phased array radiation patterns to the error-vector-magnitude (EVM) is introduced. A cost-effective software-defined radio (SDR) system, including a Pluto SDR for both transmission and reception, is employed. For setup demonstration, the performance of a 4 × 4 active phased array antenna (APAA) is studied at 26.5 GHz. Calibration of the transmitter results in an EVM of 0.5%, proving the accuracy of the measurement system. The over-the-air measured EVM of the APAA is 1.2%. The proposed setup and approach provide deep insights into how array radiation characteristics affect signal quality, advancing the evaluation and development of APAAs for next-generation wireless communication systems.
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A novel over-the-air (OTA) measurement setup for simultaneous and near-real-time characterization and mapping of the phased array radiation patterns to the error-vector-magnitude (EVM) is introduced. A cost-effective software-defined radio (SDR) system, including a Pluto SDR for both transmission and reception, is employed. For setup demonstration, the performance of a 4 × 4 active phased array antenna (APAA) is studied at 26.5 GHz. Calibration of the transmitter results in an EVM of 0.5%, proving the accuracy of the measurement system. The over-the-air measured EVM of the APAA is 1.2%. The proposed setup and approach provide deep insights into how array radiation characteristics affect signal quality, advancing the evaluation and development of APAAs for next-generation wireless communication systems.
Conference paper
(2025)
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Máté L. Iványi, Changxu Zhao, Yanki Aslan, Alexander Yarovoy, Marco Spirito
To perform the polarimetric calibration of the Antenna Dome – a fixed multi-node over-the-air measurement setup for antenna pattern characterization – a fast simulation model is developed. The model enables characterization and compensation of angle-dependent polarimetric distortions in the transmitted field of an antenna under test (AUT). An open ended waveguide and a horn antenna at 26.5 GHz are used for referencing and validation, respectively. The total power simulated at broadside with the proposed model showed an average power difference of 0.5 dB compared with the measurement results for the reference antenna. The proposed calibration method reduces the power deviation between the full-wave simulation model and the practical Dome measurement system of about 67% in the antenna used for validation. The calibration procedure compensating for systematic power imbalances across the sensing nodes and correcting angle-dependent polarization basis distortions.
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To perform the polarimetric calibration of the Antenna Dome – a fixed multi-node over-the-air measurement setup for antenna pattern characterization – a fast simulation model is developed. The model enables characterization and compensation of angle-dependent polarimetric distortions in the transmitted field of an antenna under test (AUT). An open ended waveguide and a horn antenna at 26.5 GHz are used for referencing and validation, respectively. The total power simulated at broadside with the proposed model showed an average power difference of 0.5 dB compared with the measurement results for the reference antenna. The proposed calibration method reduces the power deviation between the full-wave simulation model and the practical Dome measurement system of about 67% in the antenna used for validation. The calibration procedure compensating for systematic power imbalances across the sensing nodes and correcting angle-dependent polarization basis distortions.
Journal article
(2025)
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Nick Cancrinus, Yanki Aslan, Alvaro Diaz-Bolado, Samer Medawar, Alessandro Matheoud, Alexander Yarovoy
A novel system design framework is proposed for hybrid beamforming receivers to reduce the power consumption withoutany loss in sensitivity or beam scanning performance. Only the amplitude taper that corresponds to the relative individual analog subarrays is applied in the analog beamforming domain, while the rest of the taper is applied using digital beamformingcoefficients. Based on a given array size, number of beams, and the desired sidelobe suppression level, the number of analog subarrays and the beamforming integrated circuit (BFIC) component characteristics are optimally selected. An improved BFIC module is recommended that has less analog pre-amplification and a smaller dynamic range of variable attenuator steps. For concept demonstration, a benchmark analog beamforming and hybrid beamforming SatCom architecture, without this improvement, are simulated using a joint signal and power consumption analysis. For a 32 × 32 element array with 2 simultaneous beams and 30 dB side lobe tapering, the analog benchmark and hybrid benchmark (with 64 subarrays) are simulated to have a power consumption of 50.1 W and 66.5 W, respectively, A similar hybrid beamforming architecture with modified BFIC modules is shown to have a total power consumption of 40.3 W, less than both benchmarks. Furthermore, a comprehensive analysis of the system is conducted to illustrate how power consumption is influenced by the chosen number of subarrays with respect to the targeted sidelobe suppression, array size, number of beams and number of ADC bits.
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A novel system design framework is proposed for hybrid beamforming receivers to reduce the power consumption withoutany loss in sensitivity or beam scanning performance. Only the amplitude taper that corresponds to the relative individual analog subarrays is applied in the analog beamforming domain, while the rest of the taper is applied using digital beamformingcoefficients. Based on a given array size, number of beams, and the desired sidelobe suppression level, the number of analog subarrays and the beamforming integrated circuit (BFIC) component characteristics are optimally selected. An improved BFIC module is recommended that has less analog pre-amplification and a smaller dynamic range of variable attenuator steps. For concept demonstration, a benchmark analog beamforming and hybrid beamforming SatCom architecture, without this improvement, are simulated using a joint signal and power consumption analysis. For a 32 × 32 element array with 2 simultaneous beams and 30 dB side lobe tapering, the analog benchmark and hybrid benchmark (with 64 subarrays) are simulated to have a power consumption of 50.1 W and 66.5 W, respectively, A similar hybrid beamforming architecture with modified BFIC modules is shown to have a total power consumption of 40.3 W, less than both benchmarks. Furthermore, a comprehensive analysis of the system is conducted to illustrate how power consumption is influenced by the chosen number of subarrays with respect to the targeted sidelobe suppression, array size, number of beams and number of ADC bits.
Journal article
(2025)
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Changxu Zhao, Yanki Aslan, Alejandro Garcia-Tejero, Wietse Bouwmeester, Alexander Yarovoy
The impact of misalignment errors, specifically yaw and pitch deviations, on dihedral reflectors’ scattering responses is studied for millimeter-wave polarimetric multiple-input multipleoutput automotive radars. Through simulations and experiments at 77 GHz, it is demonstrated that significant radar cross-section (RCS) variations of up to 30 dB can occur within small misalignment ranges (0°–2° ). The findings emphasize that larger dihedral dimensions can amplify sensitivity to misalignment in some specific misalignment scenarios, offering tradeoffs between reflection strength and robustness to misalignment errors.The study also explores near-field effects, revealing notable discrepancies between the dihedral near- and far-field scattering response in misalignment scenarios. A polarimetric calibration method is applied to show how polarimetric channel phase response is affected under such conditions, achieving stable results in specific configurations (e.g., dihedral at 0° under yaw misalignment angle).This study addresses key challenges in calibration accuracy, including the high sensitivity of RCS to small angular misalignments, the trade-offs between reflector dimensions and robustness, and the influence of near-field effects in practical setups.
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The impact of misalignment errors, specifically yaw and pitch deviations, on dihedral reflectors’ scattering responses is studied for millimeter-wave polarimetric multiple-input multipleoutput automotive radars. Through simulations and experiments at 77 GHz, it is demonstrated that significant radar cross-section (RCS) variations of up to 30 dB can occur within small misalignment ranges (0°–2° ). The findings emphasize that larger dihedral dimensions can amplify sensitivity to misalignment in some specific misalignment scenarios, offering tradeoffs between reflection strength and robustness to misalignment errors.The study also explores near-field effects, revealing notable discrepancies between the dihedral near- and far-field scattering response in misalignment scenarios. A polarimetric calibration method is applied to show how polarimetric channel phase response is affected under such conditions, achieving stable results in specific configurations (e.g., dihedral at 0° under yaw misalignment angle).This study addresses key challenges in calibration accuracy, including the high sensitivity of RCS to small angular misalignments, the trade-offs between reflector dimensions and robustness, and the influence of near-field effects in practical setups.
Conference paper
(2025)
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J. Heylen, T. Dash, G. Theis, R. van der Meer, Y. Aslan, A. Yarovoy
The impact of cross-polar coupling and a finite available number of echo samples on the data quality of polarimetric weather radar data is investigated. A system model and a two-step simulation approach are proposed to simulate realistic time series of the received weather radar signals. The proposed simulation methodology is applied to a rainfall scenario to illustrate the data quality of two widely used weather radar measurement schemes. Through simulation of the bounds within which 90% of the resulting estimates fall, it is demonstrated that the finite sample size introduces deviations that limit the data quality, even in designs with low cross-polar coupling.
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The impact of cross-polar coupling and a finite available number of echo samples on the data quality of polarimetric weather radar data is investigated. A system model and a two-step simulation approach are proposed to simulate realistic time series of the received weather radar signals. The proposed simulation methodology is applied to a rainfall scenario to illustrate the data quality of two widely used weather radar measurement schemes. Through simulation of the bounds within which 90% of the resulting estimates fall, it is demonstrated that the finite sample size introduces deviations that limit the data quality, even in designs with low cross-polar coupling.
This paper in the roadmap presents the research trends on antenna systems for Satellite Communication terminals. To address the challenges posed by this application in terms of wide fractional bandwidth and large field-of-view, several antenna concepts and architectures are being investigated, which can be grouped in three main technology areas: fully electronic scan, fully mechanical scan with unconventional steering mechanisms and beam switching. Design techniques, current results and future developments are outlined, considering representative examples for each technology area.
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This paper in the roadmap presents the research trends on antenna systems for Satellite Communication terminals. To address the challenges posed by this application in terms of wide fractional bandwidth and large field-of-view, several antenna concepts and architectures are being investigated, which can be grouped in three main technology areas: fully electronic scan, fully mechanical scan with unconventional steering mechanisms and beam switching. Design techniques, current results and future developments are outlined, considering representative examples for each technology area.
Conference paper
(2024)
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Y., A.G., Stefania, Enrica
This paper in the roadmap presents the research trends on antenna systems for Satellite Communication terminals. To address the challenges posed by this application in terms of wide fractional bandwidth and large field-of-view, several antenna concepts and architectures are being investigated, which can be grouped in three main technology areas: fully electronic scan, fully mechanical scan with unconventional steering mechanisms and beam switching. Design techniques, current results and future developments are outlined, considering representative examples for each technology area.
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This paper in the roadmap presents the research trends on antenna systems for Satellite Communication terminals. To address the challenges posed by this application in terms of wide fractional bandwidth and large field-of-view, several antenna concepts and architectures are being investigated, which can be grouped in three main technology areas: fully electronic scan, fully mechanical scan with unconventional steering mechanisms and beam switching. Design techniques, current results and future developments are outlined, considering representative examples for each technology area.
Conference paper
(2024)
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Y., A.G., Stefania, Enrica
This paper in the roadmap presents the research trends on antenna systems for Satellite Communication terminals. To address the challenges posed by this application in terms of wide fractional bandwidth and large field-of-view, several antenna concepts and architectures are being investigated, which can be grouped in three main technology areas: fully electronic scan, fully mechanical scan with unconventional steering mechanisms and beam switching. Design techniques, current results and future developments are outlined, considering representative examples for each technology area.
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This paper in the roadmap presents the research trends on antenna systems for Satellite Communication terminals. To address the challenges posed by this application in terms of wide fractional bandwidth and large field-of-view, several antenna concepts and architectures are being investigated, which can be grouped in three main technology areas: fully electronic scan, fully mechanical scan with unconventional steering mechanisms and beam switching. Design techniques, current results and future developments are outlined, considering representative examples for each technology area.
This paper in the roadmap presents the research trends on antenna systems for Satellite Communication terminals. To address the challenges posed by this application in terms of wide fractional bandwidth and large field-of-view, several antenna concepts and architectures are being investigated, which can be grouped in three main technology areas: fully electronic scan, fully mechanical scan with unconventional steering mechanisms and beam switching. Design techniques, current results and future developments are outlined, considering representative examples for each technology area.
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This paper in the roadmap presents the research trends on antenna systems for Satellite Communication terminals. To address the challenges posed by this application in terms of wide fractional bandwidth and large field-of-view, several antenna concepts and architectures are being investigated, which can be grouped in three main technology areas: fully electronic scan, fully mechanical scan with unconventional steering mechanisms and beam switching. Design techniques, current results and future developments are outlined, considering representative examples for each technology area.
This paper in the roadmap presents the research trends on antenna systems for Satellite Communication terminals. To address the challenges posed by this application in terms of wide fractional bandwidth and large field-of-view, several antenna concepts and architectures are being investigated, which can be grouped in three main technology areas: fully electronic scan, fully mechanical scan with unconventional steering mechanisms and beam switching. Design techniques, current results and future developments are outlined, considering representative examples for each technology area.
...
This paper in the roadmap presents the research trends on antenna systems for Satellite Communication terminals. To address the challenges posed by this application in terms of wide fractional bandwidth and large field-of-view, several antenna concepts and architectures are being investigated, which can be grouped in three main technology areas: fully electronic scan, fully mechanical scan with unconventional steering mechanisms and beam switching. Design techniques, current results and future developments are outlined, considering representative examples for each technology area.
This paper in the roadmap presents the research trends on antenna systems for Satellite Communication terminals. To address the challenges posed by this application in terms of wide fractional bandwidth and large field-of-view, several antenna concepts and architectures are being investigated, which can be grouped in three main technology areas: fully electronic scan, fully mechanical scan with unconventional steering mechanisms and beam switching. Design techniques, current results and future developments are outlined, considering representative examples for each technology area.
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This paper in the roadmap presents the research trends on antenna systems for Satellite Communication terminals. To address the challenges posed by this application in terms of wide fractional bandwidth and large field-of-view, several antenna concepts and architectures are being investigated, which can be grouped in three main technology areas: fully electronic scan, fully mechanical scan with unconventional steering mechanisms and beam switching. Design techniques, current results and future developments are outlined, considering representative examples for each technology area.