2026-03-13T10:56:24Z https://kitami-it.repo.nii.ac.jp/oai

oai:kitami-it.repo.nii.ac.jp:00006396 2025-01-30T05:17:59Z 7:15:23

(2,2) ポート･ハイブリッド回路を構成単位とする(4,4)ポート・ハイブリッド回路(その1) : 単純ループ･ハイブリッド回路および２線条方向性結合器によるもの (4,4)-Port Hybrid Circuits Composed of (2,2)-Port Hybid Circuits as Composite Element 柴田, 孝次 品田, 雄治 application/pdf Although some ways to realize (4,4)-port hybrid circuits have already been shown，another simple method is proposed in this paper. That is to use four (2,2)-port hybrid circuits and connect them so that each input power from four input ports is equally delivered to four output ports. Provided that the hybrid operations of each (2,2)-port hybrid circuit are perfect at the center frequency f_0 of transmission, those of the (4,4)-port circuit are also perfect at f_0 and the same compensations for hybrid characteristics as (2,2)- port hybrid circuits can be used for the (4,4)-port hybrid circuits. Simple loop hybrid rings and coupled transmission-line directional couplers are employed to compose the (4,4)-port hybrid circuits，for they have　symmetric transmission and equal operating characteristics at all four ports. Hybrid characteristics of these circuits are calculated theoretically and represented by figures 北見工業大学 1976-06 jpn departmental bulletin paper https://kitami-it.repo.nii.ac.jp/records/6396 北見工業大学研究報告 7 2 335 349 https://kitami-it.repo.nii.ac.jp/record/6396/files/7-2-7.pdf application/pdf 5.5 MB 2016-11-22