Presentation 2020-09-25
A 6-port power divider for the feeding of a compact dual linearly polarized patch antenna
Makoto Sano, Koh Hashimoto,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) The isolation and the cross-polarization discrimination of a patch antenna can be enhanced by feeding the antenna differentially. To realize a compact and low-profile differentially-feed patch antenna with dual polarizations, this report presents a 6-port power divider as the feeding network of the patch antenna. The $S$-parameter matrix is derived by analyzing the transmission-line model of the 6-port power divider. The circuit analysis shows that the 6-port power divider with two equal-amplitude and out-of-phase divisions for dual polarizations can be realized in consideration of the impedance bandwidth and the isolations by tuning the characteristic impedances of the transmission lines. Two stripline 6-port power dividers with the fractional impedance bandwidths (reflections $leq -10,$dB) of 5% and 10% are designed based on the circuit analysis. A good agreement between the circuit and electromagnetic analyses is confirmed.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) patch antenna / dual polarizations / differential feed / feeding network / crossover
Paper # AP2020-61
Date of Issue 2020-09-17 (AP)

Conference Information
Committee MW / AP
Conference Date 2020/9/24(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Online
Topics (in Japanese) (See Japanese page)
Topics (in English) Microwave, Millimeter wave, Antennas and Propagation
Chair Yoshinori Kogami(Utsunomiya Univ.) / Qiang Chen(Tohoku Univ.)
Vice Chair Tadashi Kawai(Univ. of Hyogo) / Kensuke Okubo(Okayama Prefectural Univ.) / Shintaro Shinjo(Mitsubishi Electric) / Satoru Kurokawa(AIST)
Secretary Tadashi Kawai(Fujitsu Labs.) / Kensuke Okubo(Saitama Univ.) / Shintaro Shinjo(Tokyo Univ. of Agric. & Tech.) / Satoru Kurokawa(NTT DOCOMO)
Assistant Kyoya Takano(Tokyo Univ. of Science) / Naoki Hasegawa(Softbank) / Dr. Kim(Niigata Univ.)

Paper Information
Registration To Technical Committee on Microwaves / Technical Committee on Antennas and Propagation
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A 6-port power divider for the feeding of a compact dual linearly polarized patch antenna
Sub Title (in English)
Keyword(1) patch antenna
Keyword(2) dual polarizations
Keyword(3) differential feed
Keyword(4) feeding network
Keyword(5) crossover
1st Author's Name Makoto Sano
1st Author's Affiliation Toshiba Corporation(Toshiba)
2nd Author's Name Koh Hashimoto
2nd Author's Affiliation Toshiba Corporation(Toshiba)
Date 2020-09-25
Paper # AP2020-61
Volume (vol) vol.120
Number (no) AP-171
Page pp.pp.127-132(AP),
#Pages 6
Date of Issue 2020-09-17 (AP)