Stubbed Branch Line Balun

A new impedance transforming balun scheme is presented based on the branch line structure with stubs on the vertical branches. The stubbed vertical branch eliminates the unwanted even mode output and provides only the required balun output with opposite phase. Also, the use of stubs reduces the bran...

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Bibliographic Details
Published in:IEEE microwave and wireless components letters 2007-03, Vol.17 (3), p.169-171
Main Authors: PARK, Myun-Joo, LEE, Byungje
Format: Article
Language:English
Subjects:
Applied sciences
Balun
Baluns
branch line
Circuit properties
Coupling circuits
Delay lines
Electric, optical and optoelectronic circuits
Electronic circuits
Electronics
Exact sciences and technology
Fabrication
Impedance
Impedance matching
Information technology
Manufacturing
Microwave amplifiers
Microwave circuits
Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits
Microwaves
Signal convertors
Signal design
stubs
Transmission line theory
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Description
Summary:A new impedance transforming balun scheme is presented based on the branch line structure with stubs on the vertical branches. The stubbed vertical branch eliminates the unwanted even mode output and provides only the required balun output with opposite phase. Also, the use of stubs reduces the branch lengths by two times the stub length and therefore, helps to reduce the total size of the proposed balun
ISSN:1531-1309
2771-957X
1558-1764
2771-9588
DOI:10.1109/LMWC.2006.890445