28 GHz Multi-Beam Antenna Array Based On A Compact Wideband 8×8 Butler Matrix

In this paper, a multi-beam antenna array fed by a wideband 8×8 Butler matrix, based on low loss PCB based aperture hybrid couplers, is presented. The compact Butler matrix with the size of only 42 mm×61 mm is usable from 25 ... 30GHz. As a radiation element a 1 × 8 Vivaldi antenna array was impleme...

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Bibliographic Details
Published in2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting pp. 2177 - 2178
Main Authors Wang, Xiaozhou, Laabs, Martin, Plettemeier, Dirk, Chiang, Hsiao-Lan, Marandi, Mostafa Khalili, Fettweis, Gerhard P., Kosaka, Keishi, Matsunaga, Yasuhiko
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.07.2018
Subjects
5G mobile communication
Antenna measurements
Bandwidth
beam steering. beam switching. passive beamforming network
Butler matrices
Butler Matrix
Couplers
multi-beam antenna array
Phased arrays
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Summary:In this paper, a multi-beam antenna array fed by a wideband 8×8 Butler matrix, based on low loss PCB based aperture hybrid couplers, is presented. The compact Butler matrix with the size of only 42 mm×61 mm is usable from 25 ... 30GHz. As a radiation element a 1 × 8 Vivaldi antenna array was implemented. Beam pattern measurements results are highly coincidental with the simulations showing 8 beams with different spatial angles in the range of ±61 ○ , more than 8dB side lobe suppression and an average 13dBi radiation gain.
ISSN:1947-1491
DOI:10.1109/APUSNCURSINRSM.2018.8609450