DocumentCode
85372
Title
Wideband microstrip rat-race hybrid with via-swap phase inverter
Author
Mung, S.W.Y. ; Chan, Wing Shing
Author_Institution
Dept. of Electron. Eng., City Univ. of Hong Kong, Kowloon, China
Volume
50
Issue
2
fYear
2014
fDate
January 16 2014
Firstpage
96
Lastpage
98
Abstract
A via-swap 180° phase inverter on the slotted ground is presented. The phase inverter with a 90° line replaces the conventional 270° line built into the microstrip rat-race hybrid. This results in a size reduction and the widening of the bandwidth. The experiments show that the proposed hybrid has a good performance from 1.5 to 2.5 GHz (fo = 2 GHz). The bandwidth is increased from 10 to 50% and a 43% size reduction is obtained compared with the conventional rat-race hybrid.
Keywords
UHF circuits; invertors; microstrip circuits; frequency 1.5 GHz to 2.5 GHz; size reduction; slotted ground; via-swap phase inverter; wideband microstrip rat-race hybrid;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el.2013.3234
Filename
6729330
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