Compact Antenna Test Range Using Very Small F/D Transmitarray Based on Amplitude Modification and Phase Modulation

Jiazhi Tang, Xiaoming Chen*, Xiangshuai Meng, Zhengpeng Wang, Yuxin Ren, Chong Pan, Xiaoyu Huang, Mengting Li, Ahmed A. Kishk

*Kontaktforfatter

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

17 Citationer (Scopus)

Abstract

A very small focal-to-diameter (F/D) ratio transmitarray for compact antenna test range (CATR) application is proposed in this article. The transmitarray comprises a feed antenna, a metasurface for phase modulation (MPM), and another one for amplitude modification (MAM). MPM and MAM are implemented using the same metasurface cell but with different cell selections and arrangements. A holistic phase-only design method determines whether the metasurface is for amplitude modification or phase modulation. A CATR collimator with an overall low profile is realized through the joint design of MAM and MPM. The proposed technique overcomes the limits of the ordinary metasurface lenses and enables plane wave generation with a short focal length and sizeable quiet zone. The resulting CATR demonstrates a 50% quiet zone of the aperture size with ±0.5-dB amplitude and ±5° phase errors by full-wave simulation. For further verification, a prototype is fabricated, and its experimental results confirm the simulations.

OriginalsprogEngelsk
Artikelnummer9709836
TidsskriftIEEE Transactions on Instrumentation and Measurement
Vol/bind71
ISSN0018-9456
DOI
StatusUdgivet - 2022

Bibliografisk note

Funding Information:
This work was supported in part by the National Natural Science Foundation of China under Grant 62171362.

Publisher Copyright:
© 1963-2012 IEEE.

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