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26 GHz Band Extremely Low-Profile Front-End Configuration Employing Integrated Modules of Patch Antennas and SIW Filters Yasunori SUZUKI Takana KAHO Kei SATOH Hiroshi OKAZAKI Maki ARAI Yo YAMAGUCHI Shoichi NARAHASHI Hiroyuki SHIBA Publication IEICE TRANSACTIONS on Electronics Vol.E100-C No.12 pp.1097-1107 Publication Date: 2017/12/01 Online ISSN: 1745-1353 DOI: 10.1587/transele.E100.C.1097 Type of Manuscript: PAPER Category: Microwaves, Millimeter-Waves Keyword: array antenna, SIW filter, 3D-MMIC, lower profile, radio access unit, Full Text: PDF>>
Summary: This paper presents an extremely low-profile front-end configuration for a base station at quasi-millimeter wave band. It consists of integrated modules of patch antennas and substrate integrated waveguide filters using two printed circuit boards, and transmitter modules using compact GaAs pHEMT three-dimensional monolithic millimeter-wave integrated circuits. The transmitter modules are located around the integrated modules. This is because the proposed front-end configuration can attain extremely low profile, and band-pass filtering performance at quasi-millimeter wave band. As a demonstration of the proposed configuration, 26-GHz-band 4-by-4 elements front-end module is fabricated and tested. The fabricated module has the thickness of about 1 cm, while that offers the attenuation of more than 30 dB with 2 GHz offset from 26 GHz. The proposed configuration can provide base station that can be effective in offering sub-millimeter wave and millimeter-wave bands broadband services for 5G mobile communications systems. | |||||
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