Dual-band rat-race coupler with bandwidth enhancement

IEEE MTT-S International Microwave Symposium Digest

Volumn , Issue , 2006, Pages 1559-1562

  Kong, C P ^a   Cheng, Kwok Keung M ^a  

^a CHINESE UNIVERSITY OF HONG KONG   (Hong Kong)

Author keywords

Couplers; Dual band; Rat race

Indexed keywords

BANDWIDTH; ELECTRIC IMPEDANCE; INSERTION LOSSES; MICROSTRIP LINES; OPTIMIZATION;

DUAL BAND; PLANAR STRUCTURE; RAT RACE;

WAVEGUIDE COUPLERS;

EID: 34250376509     PISSN: 0149645X     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.1109/MWSYM.2006.249612     Document Type: Conference Paper

References (5)

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3. H. Okabe, C. Caloz, T. Itoh, "A compact enhanced-bandwidth hybrid ring using a left-handed transmission line section," 2003 IEEE MTT-S Int. Microwave Symp. Dig., vol. 1, pp. 329 -332, June 2003.
4. T. Hirota, A. Minakawa, M. Muraguchi, "Reduced-size branch-line and rat-race hybrids for uniplanar MMIC's," IEEE Trans. Microwave Theory Tech., vol. 38, no. 3, pp. 270-275, March 1990.
5. K. K. M. Cheng, F. L. Wong; "A novel rat-race coupler design for dual-band applications," IEEE Microwave and Wireless Component Letters., vol. 15, no. 8, pp. 521-523, August 2005.