A Novel Corporate-Feed Horn Sub-Array Antenna for the 77 GHz-Band

A novel 2×2-element corporate-feed horn sub-array antenna for the 77-GHz band is proposed in this paper. The stair-stepping horn is employed instead of a traditional pyramid horn to reduce the profile of the array. A set of composite structure composed of waveguide divider and cavity is d...

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Main Authors: Bao-Jian Gao, Yu-Hui Ren, Han-Dong Wu, Xue Liao, Ke Li, Fu-Wei Wang
Format: Article
Language:English
Published: IEEE 2018-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/8395372/
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author Bao-Jian Gao
Yu-Hui Ren
Han-Dong Wu
Xue Liao
Ke Li
Fu-Wei Wang
author_facet Bao-Jian Gao
Yu-Hui Ren
Han-Dong Wu
Xue Liao
Ke Li
Fu-Wei Wang
author_sort Bao-Jian Gao
collection DOAJ
description A novel 2&#x00D7;2-element corporate-feed horn sub-array antenna for the 77-GHz band is proposed in this paper. The stair-stepping horn is employed instead of a traditional pyramid horn to reduce the profile of the array. A set of composite structure composed of waveguide divider and cavity is designed and fabricated integrally with a computer numerical control milling technique to simplify the feed-network. Most of all, a metallic cross bar with the wall is innovatively loaded to reduce the mutual coupling and suppress the side lobe level of the sub-array. Measured results show that the proposed antenna achieves a -10 dB |S<sub>11</sub>| with a bandwidth of 72-85 GHz which is corresponding to 16.6%. Moreover, the average gain of the antenna is about 19 dB, and the side lobe level of the antenna is less than -9.3 dB within the working band.
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spelling doaj.art-12cbbb1dc95f4d4582c2d5e7f0a33f412022-12-21T20:30:23ZengIEEEIEEE Access2169-35362018-01-016371663717210.1109/ACCESS.2018.28503098395372A Novel Corporate-Feed Horn Sub-Array Antenna for the 77 GHz-BandBao-Jian Gao0Yu-Hui Ren1https://orcid.org/0000-0003-3050-7366Han-Dong Wu2Xue Liao3Ke Li4Fu-Wei Wang5School of Information Science and Technology, Northwest University, Xi&#x2019;an, ChinaSchool of Information Science and Technology, Northwest University, Xi&#x2019;an, ChinaXi&#x2019;an Hengda Microwave Technology Development Company, Xi&#x2019;an, ChinaSchool of Information Science and Technology, Northwest University, Xi&#x2019;an, ChinaSchool of Information Science and Technology, Northwest University, Xi&#x2019;an, ChinaSchool of Information Science and Technology, Northwest University, Xi&#x2019;an, ChinaA novel 2&#x00D7;2-element corporate-feed horn sub-array antenna for the 77-GHz band is proposed in this paper. The stair-stepping horn is employed instead of a traditional pyramid horn to reduce the profile of the array. A set of composite structure composed of waveguide divider and cavity is designed and fabricated integrally with a computer numerical control milling technique to simplify the feed-network. Most of all, a metallic cross bar with the wall is innovatively loaded to reduce the mutual coupling and suppress the side lobe level of the sub-array. Measured results show that the proposed antenna achieves a -10 dB |S<sub>11</sub>| with a bandwidth of 72-85 GHz which is corresponding to 16.6%. Moreover, the average gain of the antenna is about 19 dB, and the side lobe level of the antenna is less than -9.3 dB within the working band.https://ieeexplore.ieee.org/document/8395372/Planar arraycorporate feedingstair-stepping horn antennamutual coupling
spellingShingle Bao-Jian Gao
Yu-Hui Ren
Han-Dong Wu
Xue Liao
Ke Li
Fu-Wei Wang
A Novel Corporate-Feed Horn Sub-Array Antenna for the 77 GHz-Band
IEEE Access
Planar array
corporate feeding
stair-stepping horn antenna
mutual coupling
title A Novel Corporate-Feed Horn Sub-Array Antenna for the 77 GHz-Band
title_full A Novel Corporate-Feed Horn Sub-Array Antenna for the 77 GHz-Band
title_fullStr A Novel Corporate-Feed Horn Sub-Array Antenna for the 77 GHz-Band
title_full_unstemmed A Novel Corporate-Feed Horn Sub-Array Antenna for the 77 GHz-Band
title_short A Novel Corporate-Feed Horn Sub-Array Antenna for the 77 GHz-Band
title_sort novel corporate feed horn sub array antenna for the 77 ghz band
topic Planar array
corporate feeding
stair-stepping horn antenna
mutual coupling
url https://ieeexplore.ieee.org/document/8395372/
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