A Double-Fold 7×8 Butler Matrix-Fed Multibeam Antenna With a Boresight Beam for 5G Applications

IEEE Antennas and Wireless Propagation Letters(2022)

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摘要
A substrate integrated waveguide multibeam antenna fed by a double-fold 7×8 Butler matrix (BM) beam-forming network (BFN) is presented. The proposed antenna is composed of a 7×8 BM feeding network and an 8×8 slot array. By merging the two central input ports of the BM into one port, the BM can provide output signals with equal phase, which can generate a boresight beam. In order to reduce the size...
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关键词
Antennas,Antenna measurements,Broadband antennas,Antenna arrays,5G mobile communication,Slot antennas,Phase shifters
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