Title :
A novel planar branch-line coupler design for dual-band applications
Author :
Wong, Fai-Leung ; Cheng, Kwok-Keung M.
Author_Institution :
Dept. of Electron. Eng., Chinese Univ. of Hong Kong, China
Abstract :
This paper presents, for the first time, the design of a branch-line coupler that can operate at two arbitrary frequency bands. Moreover, design equations of the coupler with sub-optimum performance is analytically derived. The proposed circuit also features compact size, planar structure and low-loss. For verification, both simulated and measured results of a microstrip branch-line coupler operating at 900/1500 MHz are shown.
Keywords :
microstrip circuits; microstrip couplers; microstrip discontinuities; 1500 MHz; 900 MHz; dual band applications; frequency bands; microstrip circuits; microstrip planar branch line coupler design; Bandwidth; Circuit simulation; Coupling circuits; Design engineering; Dual band; Equations; Frequency; Impedance; Insertion loss; Microstrip;
Conference_Titel :
Microwave Symposium Digest, 2004 IEEE MTT-S International
Print_ISBN :
0-7803-8331-1
DOI :
10.1109/MWSYM.2004.1339117
