Presentation 1994/10/21
On the characteristics of Hybrid-Rings using Coupled Microstriplines
Shinji Nagamine, Iwata Sakagami,
PDF Download Page PDF download Page Link
Abstract(in Japanese) (See Japanese page)
Abstract(in English) A method for miniaturizing the branch-line hybrid-ring is presented by replacing the quarter wavelength transmission lines with a network consisting of a coupled line called microwave C- section and two single lines.In a homogeneous medium,the input matching,isolation and equal power split can be perfectly satisfied as in a conventional 3dB hybrid.However,in a inhomogeneous medium,generally speaking,those conditions will not be attained because of the unequal phase velocities of the even and odd modes.Therefore,this paper also shows the compensation method that the equal power split can be achieved by the proper selection of the coupled-line length and its coupling coefficient. And the input matching and isolation are hardly affected at a center frequency.Experimental results show good agreement with theories.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) reduced-size / coupled microstriplines / unequal phase velocity / power split
Paper # EMCJ94-46,MW94-70
Date of Issue

Conference Information
Committee EMCJ
Conference Date 1994/10/21(1days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Vice Chair

Paper Information
Registration To Electromagnetic Compatibility (EMCJ)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) On the characteristics of Hybrid-Rings using Coupled Microstriplines
Sub Title (in English)
Keyword(1) reduced-size
Keyword(2) coupled microstriplines
Keyword(3) unequal phase velocity
Keyword(4) power split
1st Author's Name Shinji Nagamine
1st Author's Affiliation Muroran Institute of Technology()
2nd Author's Name Iwata Sakagami
2nd Author's Affiliation Muroran Institute of Technology
Date 1994/10/21
Paper # EMCJ94-46,MW94-70
Volume (vol) vol.94
Number (no) 302
Page pp.pp.-
#Pages 8
Date of Issue