High Aperture Efficiency Plastic Lens Antenna for Scanning Lens Phased Array at 180 GHz

Conference paper (2021)

Authors

S. Bosma Tera-Hertz Sensing - EEMCS
N. van Rooijen Tera-Hertz Sensing - EEMCS
M. Alonso Del Pino Tera-Hertz Sensing - EEMCS
Nuria Llombart Tera-Hertz Sensing - EEMCS
Research Group
Tera-Hertz Sensing (EEMCS) (TU Delft)
Copyright: © 2021 S. Bosma, N. van Rooijen, M. Alonso Del Pino, Nuria Llombart
DOI
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https://doi.org/10.1109/IRMMW-THz50926.2021.9567550
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Published Date

2021

Language

English

Reuse Rights

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Microelectronics

Research Group

Tera-Hertz Sensing

Abstract

In this contribution, we present a plastic resonant leaky-wave lens antenna with high aperture efficiency (>80%) over a 1:2 bandwidth centered at 180 GHz. This antenna can be integrated in a scanning lens phased array architecture for next-generation wireless and sensing applications that require high-directivity steerable beams. The high aperture efficiency is achieved thanks to the combination of annular corrugations in the ground plane with a leaky-wave resonant cavity. A WR-5 (140-220 GHz) prototype is manufactured and measured in terms of reflection coefficient, radiation patterns, directivity, losses, cross-polarization and scan performance, showing excellent agreement with simulations.