DocumentCode
1007462
Title
A novel rat race coupler design for dual-band applications
Author
Cheng, Kwok-Keung M. ; Wong, Fai-Leung
Author_Institution
Dept. of Electron. Eng., Chinese Univ. of Hong Kong, China
Volume
15
Issue
8
fYear
2005
Firstpage
521
Lastpage
523
Abstract
This letter presents a novel and compact rat-race coupler design that can operate at two widely separated frequency bands. It is accomplished by modifying the length and impedance of the branch lines in the conventional structure, and the insertion of two additional shunt stubs. The proposed circuit also features planar structure and low insertion loss. For verification, the measured performance of a microstrip coupler operating at 900/2000MHz are shown.
Keywords
integrated circuit design; microstrip couplers; microwave integrated circuits; passive networks; branch lines; dual-band application; insertion loss; microstrip coupler; microwave circuits; planar structure; rat race coupler design; shunt stubs; Coupling circuits; Dielectric loss measurement; Dielectric measurements; Dual band; Frequency; Impedance; Insertion loss; Loss measurement; Microstrip; Microwave devices; Couplers; dual band; microwave circuits;
fLanguage
English
Journal_Title
Microwave and Wireless Components Letters, IEEE
Publisher
ieee
ISSN
1531-1309
Type
jour
DOI
10.1109/LMWC.2005.852792
Filename
1471731
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