Title :
Dual-Band Rectangular Patch Hybrid Coupler
Author :
Zheng, Shao Yong ; Yeung, Sai Ho ; Chan, Wing Shing ; Man, Kim Fung ; Leung, Shu Hung ; Xue, Quan
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, Hong Kong
fDate :
7/1/2008 12:00:00 AM
Abstract :
This paper presents, for the first time, the design of a rectangular patch hybrid coupler that can operate at two arbitrary frequency bands with the same quadrature phase relation between the two outputs. The design procedure of the hybrid coupler is presented. For demonstration, a dual-band rectangular patch hybrid coupler is designed to operate in the 2.4- and 5-GHz bands corresponding to the IEEE 802.11 a/b/g bands. The measured result shows 9.3% and 18.2% bandwidth for the lower and upper frequency bands.
Keywords :
microwave devices; rectangular waveguides; waveguide couplers; wireless LAN; IEEE 802.11 bands; dual-band rectangular patch hybrid coupler; frequency 2.4 GHz; frequency 5 GHz; 3-dB hybrid coupler; Dual-band hybrid coupler; rectangular patch hybrid coupler; stub loaded;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2008.925234
