F. Sebastiano
32 records found
1
This thesis details the design of a high-speed RF delay locked loop(DLL). A new proposed phase detector architecture, coined the mixing phase detector, allows for phase detection at high frequencies, resulting in multiphase generation at these higher frequencies with a DLL. The
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Quadrature clocks have been widely used in both wireless and wireline communication systems. This Master’s project presents a quadrature clock generator operating in the 10 GHz to 20 GHz range, specifically tailored for quantum computing applications. The design utilizes delay li
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In the past several decades, tremendous progress has been made in physics and engineering towards realize practical quantum computers. Several small-scale systems have already been demonstrated which utilize separate, off-the-shelf hardware components to directly control qubits.
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DECQA
Dictionary-based Energy-efficient Coding of Quantum Instruction Set guided by Algorithmic Information
Efficiency in handling instructions within compilation and control processes is essential for scalability and fault-tolerant quantum computation. To mitigate the limited bandwidth for transmission of instructions and energy bottlenecks in cryogenic control architectures, this the
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This thesis describes the implementation of a phase-domain readout system for a thermal-diffusivity (TD) based temperature sensor. Such sensors measure the phase shift of an electro-thermal filter (ETF), which exhibits a near-linear dependency on absolute temperature. The phase s
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"Quantum optimal control is a rapidly growing field with diverse methods and applications. In this work, the possibility of using quantum optimal control techniques to co-optimize the energetic cost and the process fidelity of a quantum unitary gate is investigated. The theoreti
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The escalating demand for higher data rates in modern communication networks are pushing more transmitters and receivers to use a modulation technique with more spectral efficiency, like pulse amplitude modulation 4-level (PAM-4).
On the receiver side, phase detection fo ...
On the receiver side, phase detection fo ...
GaN based 2DHG thermoelectric characterization for u-TEGs
Specialized for extremely low temperature environments
Thermoelectric generators (TEGs) are critical in environments where alternative energy harvesting methods are necessary, such as space exploration. This thesis investigates using a two-dimensional hole gas (2DHG) as a p-type material within a Gallium Nitride (GaN) based TEG. This
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In this thesis, a low-power, high-accuracy BJT-based temperature sensor is proposed, which consists of two main parts: a BJT-based dual-mode front-end (DMFE) and a tracking Delta-Sigma-Modulator (DSM). The front-end employs vertical PNP transistors, which, compared to NPNs, exhib
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This work describes a fully digital transmitter (DTX) for 5G mMIMO base stations that combines the strengths of high-speed digital CMOS with the high-power capabilities of a Monolithic Microwave Integrated Circuit (MMIC) high-voltage technology. This technology platform offers hi
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The goal of this thesis is expanding quantum algorithm datasets to enhance our capability to benchmark quantum systems and to open up possibilities for using machine learning techniques in quantum circuit mapping. Both of these areas are currently hindered by the lack of a wide r
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Receivers for millimeter-wave (mm-wave) 5G, with the ability to detect a low-power desired signal, in the vicinity of large power blockers, require highly linear circuitry with a large power consumption. Suppressing the out-of-band blockers reduces this power consumption. N-path
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This paper presents a 0.01mm2 10MHz FLL-based RC frequency reference that does not require the use of resistors with complementary temperature coefficients (TCs), thus facilitating its implementation in a wide range of standard CMOS processes. Fabricated in a 0.18μm CMOS process,
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Phase-locked loops (PLLs) are ubiquitous in many RF applications such as frequency synthesizers in wireline and wireless transceivers. In this project, a charge-sampling PLL has been designed, which employs a charge-domain sub-sampling phase detector. The high gain of the phase d
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This thesis discusses the basic architecture, design details, circuit implementation, and measurements of a digital class D current driver.
The driver contains two main parts: a digital control loop and analog circuits.
Parts of the important part in the digital control l ...
The driver contains two main parts: a digital control loop and analog circuits.
Parts of the important part in the digital control l ...
Quantum Computer Microarchitecture
For color centers in diamond
Nowadays, the need for better and faster computing searches for solutions in the field of quantum computing. It is believed that quantum computing can and will surpass conventional, classical computing. When quantum computing surpasses classical computing, it is called quantum su
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5G mm-Wave Downconverter
Architecture for the Antenna Dome System
The commercialization of millimeter wave frequencies for the 5G New Radio standard requires time and cost -effective testing equipment. The over-the-air measurement setup developed at the TU Delft (ADome) is able to reduce measurement time, by positioning multiple fixed sensing n
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Visualization tools
For the OpenQL compiler
The rapid progress quantum devices have made in recent years has led to the need for systems that bridge the gap between quantum algorithms and quantum hardware. To this purpose different full-stack quantum programming platforms have been developed, providing high lev
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With the current advancements in quantum computing moving more circuitry into the cryogenic chamber there is a need for high-speed connectivity between the cryogenic and room temperature environment. Studies conducted to date have achieved high-speed links of multiple Gb/s utiliz
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