Print Email Facebook Twitter Wideband Multi-Mode Leaky-Wave Feed for Scanning Lens Phased Array at Submillimeter Wavelengths Title Wideband Multi-Mode Leaky-Wave Feed for Scanning Lens Phased Array at Submillimeter Wavelengths Author Alonso Del Pino, M. (TU Delft Tera-Hertz Sensing) Bosma, S. (TU Delft Tera-Hertz Sensing) Jung-Kubiak, Cecile (California Institute of Technology) Chattopadhyay, Goutam (California Institute of Technology) Llombart, Nuria (TU Delft Tera-Hertz Sensing) Date 2021 Abstract In this article, we propose a hybrid electromechanical scanning lens antenna array architecture suitable for the steering of highly directive beams at submillimeter wavelengths with field-of-views (FoV) of ±25°. The concept relies on combining electronic phase shifting of a sparse array with a mechanical translation of a lens array. The use of a sparse-phased array significantly simplifies the RF front-end (number of active components, routing, thermal problems), while the translation of a lens array steers the element patterns to angles off-broadside, reducing the impact of grating lobes over a wide FoV. The mechanical translation required for the lens array is also significantly reduced compared to a single large lens, leading to faster and low-power mechanical implementation. In order to achieve wide bandwidth and large steering angles, a novel leaky wave lens feed concept is also implemented. A 550-GHz prototype was fabricated and measured demonstrating the scanning capabilities of the embedded element pattern and the radiation performance of the leaky wave fed antenna. Subject beam-scanningleaky-wave feedlens antenna arraylens phased arraysubmillimeter-wave To reference this document use: http://resolver.tudelft.nl/uuid:0da19fab-9653-480f-8c1b-e840171c5326 DOI https://doi.org/10.1109/TTHZ.2020.3038033 Embargo date 2022-10-20 ISSN 2156-342X Source IEEE Transactions on Terahertz Science and Technology, 11 (2), 205-217 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 journal article Rights © 2021 M. Alonso Del Pino, S. Bosma, Cecile Jung-Kubiak, Goutam Chattopadhyay, Nuria Llombart Files PDF Wideband_Multimode_Leaky_ ... engths.pdf 4.15 MB Close viewer /islandora/object/uuid:0da19fab-9653-480f-8c1b-e840171c5326/datastream/OBJ/view