2026-03-14T13:39:21Z https://kitami-it.repo.nii.ac.jp/oai

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

(4,4)-Port Hybrid Circuits Composed of (2,2)-Port Hybid Circuits as Composite Element (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 柴田, 孝次 32435 品田, 雄治 32436 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 departmental bulletin paper 北見工業大学 1976-06 application/pdf 北見工業大学研究報告 2 7 335 349 https://kitami-it.repo.nii.ac.jp/record/6396/files/7-2-7.pdf https://kitami-it.repo.nii.ac.jp/records/6396 jpn