DocumentCode
1067109
Title
A novel planar dual balun for Doubly Balanced star mixer
Author
Kim, Sun-Sook ; Lee, Jong-Hwan ; Yeom, Kyung-Whan
Author_Institution
Dept. of Radio Sci. & Eng., Chungnam Nat. Univ., Daejeon, South Korea
Volume
14
Issue
9
fYear
2004
Firstpage
440
Lastpage
442
Abstract
A novel planar dual balun for doubly balanced star mixer is presented. The balun consists of two identical Marchand baluns using coupled microstrip lines. It shows the amplitude imbalance within 1.2 dB and the phase imbalance within 180±1.5° over 1.2 to 2.8 GHz. The star mixer using a pair of the suggested balun has the conversion loss about 6 dB in the band.
Keywords
baluns; microstrip lines; microwave mixers; waveguide components; Marchand baluns; amplitude imbalance; conversion loss; coupled microstrip lines; doubly balanced star mixer; dual balun; phase imbalance; planar balun; Bandwidth; Coplanar transmission lines; Coupling circuits; Dielectric substrates; Diodes; Hybrid junctions; Impedance matching; MMICs; Microstrip; Packaging; Doubly balanced star mixer; planar dual balun;
fLanguage
English
Journal_Title
Microwave and Wireless Components Letters, IEEE
Publisher
ieee
ISSN
1531-1309
Type
jour
DOI
10.1109/LMWC.2004.832079
Filename
1324741
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