A Broadband E-Band Single-Layer-SIW-to-Waveguide Transition for Automotive Radar

Kaiqiang Zhu; Yu Xiao; Wenhao Tan; Hao Luo; Houjun Sun

doi:10.1109/LMWC.2022.3140267

A Broadband E-Band Single-Layer-SIW-to-Waveguide Transition for Automotive Radar

Kaiqiang Zhu, Yu Xiao, Wenhao Tan, Hao Luo^*, Houjun Sun

^*Corresponding author for this work

School of Integrated Circuits and Electronics

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

An E-band air-filled rectangular waveguide (RWG) to single thin-layer (0.127 mm) substrate integrated waveguide (SIW) transition is proposed for automotive radar applications. The compact transition structure is realized using a symmetric narrow aperture coupled comb patches. With the mutual coupling effect between patches, a bandwidth greater than 22% for |S11| < -15 dB is achieved. A back-to-back prototype is fabricated and measured. The results show that the insertion loss of a single transition is less than 0.5 dB within 71-86 GHz, which covers the whole attractive frequency range for automotive radar. With broadband and compact size, the proposed transition presents potential for automotive radar.

Original language	English
Pages (from-to)	523-526
Number of pages	4
Journal	IEEE Microwave and Wireless Components Letters
Volume	32
Issue number	6
DOIs	https://doi.org/10.1109/LMWC.2022.3140267
Publication status	Published - 1 Jun 2022

Keywords

Automotive radar
E-band
broadband transition
substrate integrated waveguide (SIW)

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10.1109/LMWC.2022.3140267

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abstract = "An E-band air-filled rectangular waveguide (RWG) to single thin-layer (0.127 mm) substrate integrated waveguide (SIW) transition is proposed for automotive radar applications. The compact transition structure is realized using a symmetric narrow aperture coupled comb patches. With the mutual coupling effect between patches, a bandwidth greater than 22% for |S11| < -15 dB is achieved. A back-to-back prototype is fabricated and measured. The results show that the insertion loss of a single transition is less than 0.5 dB within 71-86 GHz, which covers the whole attractive frequency range for automotive radar. With broadband and compact size, the proposed transition presents potential for automotive radar.",

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AU - Sun, Houjun

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AB - An E-band air-filled rectangular waveguide (RWG) to single thin-layer (0.127 mm) substrate integrated waveguide (SIW) transition is proposed for automotive radar applications. The compact transition structure is realized using a symmetric narrow aperture coupled comb patches. With the mutual coupling effect between patches, a bandwidth greater than 22% for |S11| < -15 dB is achieved. A back-to-back prototype is fabricated and measured. The results show that the insertion loss of a single transition is less than 0.5 dB within 71-86 GHz, which covers the whole attractive frequency range for automotive radar. With broadband and compact size, the proposed transition presents potential for automotive radar.

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A Broadband E-Band Single-Layer-SIW-to-Waveguide Transition for Automotive Radar

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