Print Email Facebook Twitter W-Band Demonstration of Dynamic, High-Gain Beam Steering with a Scanning Lens Phased Array Title W-Band Demonstration of Dynamic, High-Gain Beam Steering with a Scanning Lens Phased Array Author Bosma, S. (TU Delft Tera-Hertz Sensing) van Rooijen, N. (TU Delft Tera-Hertz Sensing) Alonso Del Pino, M. (TU Delft Tera-Hertz Sensing) Spirito, M. (TU Delft Electronics) Llombart, Nuria (TU Delft Tera-Hertz Sensing) Date 2022 Abstract We report the measured results of a sparse, 4x1 scanning lens phased array prototype at W-band that is capable of beam steering a directive (>30 dBi) beam towards ±20° with sidelobe levels around -10 dB. The array elements are high-aperture-efficiency resonant leaky-wave lens antennas with a feed that suppresses the spurious TM0 mode over a wide bandwidth by using a circular waveguide in a ground plane surrounded by annular corrugations. The scanning lens phased array relies on simultaneous electrical and mechanical phase shifting to steer the beams. We use 15 GHz IQ-mixers followed by x6 multipliers to achieve electronic amplitude and phase control at W-band and a piezo-electric motor for mechanical phase shifting, which allows us to scan this array up to 20°. Measurements at 90 GHz of the lens array are in excellent agreement with simulations. More measurement results will be presented at the conference. To reference this document use: http://resolver.tudelft.nl/uuid:45a0437e-0b7d-4d70-a605-5f31d7ab9719 DOI https://doi.org/10.1109/IRMMW-THz50927.2022.9895677 Publisher IEEE Embargo date 2023-03-27 ISBN 978-1-7281-9428-8 Source Proceedings of the 2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz) Event 2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 2022-08-28 → 2022-09-02, Hybrid event at Delft, Netherlands Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type conference paper Rights © 2022 S. Bosma, N. van Rooijen, M. Alonso Del Pino, M. Spirito, Nuria Llombart Files PDF W_Band_Demonstration_of_D ... _Array.pdf 601.95 KB Close viewer /islandora/object/uuid:45a0437e-0b7d-4d70-a605-5f31d7ab9719/datastream/OBJ/view