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1. (WO2018100714) WAVEGUIDE DIRECTIONAL COUPLER AND METHOD FOR MAKING WAVEGUIDE DIRECTIONAL COUPLER

Pub. No.:    WO/2018/100714    International Application No.:    PCT/JP2016/085744
Publication Date: Fri Jun 08 01:59:59 CEST 2018 International Filing Date: Fri Dec 02 00:59:59 CET 2016
IPC: H01P 5/18
H01P 1/02
Applicants: MITSUBISHI ELECTRIC CORPORATION
三菱電機株式会社
Inventors: YUKAWA, Hidenori
湯川 秀憲
USHIJIMA, Yu
牛嶋 優
IDA, Yuya
井田 雄也
HIRAIKE, Taro
平池 太郎
OSHIMA, Takeshi
大島 毅
YONEDA, Naofumi
米田 尚史
Title: WAVEGUIDE DIRECTIONAL COUPLER AND METHOD FOR MAKING WAVEGUIDE DIRECTIONAL COUPLER
Abstract:
A waveguide directional coupler in which a cross-sectional shape of a transformation waveguide (24a-24d) perpendicular to a waveguide-axis direction is a cutout shape obtained by cutting out the two corners on one diagonal line in a quadrangle. In the cutout shape, a first area that is longer in a waveguide-width direction than in a waveguide-height direction is connected to a connection waveguide (23a-23d) or to an input/output waveguide (25a-25d). In the cutout shape, a second area that is shorter in the waveguide-width direction than in the waveguide-height direction is connected to the input/output waveguide (25a-25d) or to the connection waveguide (23a-23d).