DocumentCode
843855
Title
Multiple stage uncompensated Marchand balun with 7:1 bandwidth ratio on double side PCB
Author
Xu, Z. ; MacEachern, L.
Author_Institution
Dept. of Electron., Carleton Univ., Ottawa, ON
Volume
45
Issue
10
fYear
2009
Firstpage
512
Lastpage
514
Abstract
Proposed is the design of a multiple stage uncompensated Marchand balun. A coplanar waveguide with a ground plane is used as the coupled line structure providing tight coupling by shielding the centre line from the ground. Wide bandwidth is achieved by the combination of a wideband impedance matching L-section and multiple stages of lambda/4 step transformers. Measurements indicate an approximate -20 dB return loss from 1 to 7.5 GHz, and less than 4deg phase imbalance from DC to 7.2 GHz.
Keywords
baluns; coplanar waveguides; impedance matching; printed circuits; bandwidth ratio; coplanar waveguide; coupled line structure; double side PCB; frequency 1 GHz to 7.5 GHz; ground plane; multiple stage Marchand balun; uncompensated Marchand balun; wideband impedance matching;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el.2009.0265
Filename
4913372
Link To Document