Presentation 2017-07-27
Suppression of E-plane Sidelobes using a Slit Layer in a Corporate-feed Waveguide Slot Array Antenna consisting of 2x2-element Radiating Units
Haruka Arakawa, Hisanori Irie, Takashi Tomura, Jiro Hirokawa,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) We have suppressed E-plane sidelobe level in the tilted direction between 30-40 deg. in Taylor radiation pattern by using a slit layer in the 70 GHz corporate-feed waveguide slot array antenna consisting of 2x2-element radiating units. We confirm that the sidelobe level can be suppressed by appropriate relative permittivity and thickness of the dielectric and the slit width by analysis of the 2x16 elements. We design the feeding circuit that realizes Taylor radiation pattern in the E-plane and uniform excitation in the H-plane. The full structure of the 16x16 elements with the feeding circuit is analyzed by HFSS. 10.2% bandwidth of VSWR less than 1.5 and 83.9% aperture efficiency at the design frequency are achieved. The sidelobe level of the tilted direction between 30-40 deg. is suppressed to -29.5dB in 71-76GHz.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) waveguide slot array / corporate-feed / Taylor distribution / slit
Paper # AP2017-50,SAT2017-6
Date of Issue 2017-07-19 (AP), 2017-07-20 (SAT)

Conference Information
Committee AP / SAT / SANE
Conference Date 2017/7/26(3days)
Place (in Japanese) (See Japanese page)
Place (in English) Nagoya Institute of Technology
Topics (in Japanese) (See Japanese page)
Topics (in English) Remote sensing, Radio propagation, Antennas and Propagation, Sattelite Communication
Chair Jiro Hirokawa(Tokyo Tech.) / Toshinori Susuki(Tohoku Gakuin Univ.) / Sonosuke Fukushima(ENRI)
Vice Chair Ryo Yamaguchi(SoftBank) / Hiroyuki Tsuji(NICT) / Fumihiro Yamashita(NTT) / Toshifumi Moriyama(Nagasaki Univ.) / Akitsugu Nadai(NICT)
Secretary Ryo Yamaguchi(NTT DoCoMo) / Hiroyuki Tsuji(Saitama Univ.) / Fumihiro Yamashita(KDDI Research) / Toshifumi Moriyama(NICT) / Akitsugu Nadai(Mitsubishi Electric)
Assistant Nobuyasu Takemura(Nippon Inst. of Tech.) / Satoshi Yamaguchi(Mitsubishi Electric) / / Manabu Akita(Univ. of Electro-Comm.) / Ryo Natsuaki(Univ. of Tokyo)

Paper Information
Registration To Technical Committee on Antennas and Propagation / Technical Committee on Satellite Telecommunications / Technical Committee on Space, Aeronautical and Navigational Electronics
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Suppression of E-plane Sidelobes using a Slit Layer in a Corporate-feed Waveguide Slot Array Antenna consisting of 2x2-element Radiating Units
Sub Title (in English)
Keyword(1) waveguide slot array
Keyword(2) corporate-feed
Keyword(3) Taylor distribution
Keyword(4) slit
1st Author's Name Haruka Arakawa
1st Author's Affiliation Tokyo Institute of Technology(Tokyo Inst. of Tech.)
2nd Author's Name Hisanori Irie
2nd Author's Affiliation Tokyo Institute of Technology(Tokyo Inst. of Tech.)
3rd Author's Name Takashi Tomura
3rd Author's Affiliation Tokyo Institute of Technology(Tokyo Inst. of Tech.)
4th Author's Name Jiro Hirokawa
4th Author's Affiliation Tokyo Institute of Technology(Tokyo Inst. of Tech.)
Date 2017-07-27
Paper # AP2017-50,SAT2017-6
Volume (vol) vol.117
Number (no) AP-150,SAT-152
Page pp.pp.29-34(AP), pp.1-6(SAT),
#Pages 6
Date of Issue 2017-07-19 (AP), 2017-07-20 (SAT)