Title :
Size-Reduced Rectangular Patch Hybrid Coupler Using Patterned Ground Plane
Author :
Zheng, Shao Yong ; Yeung, Sai Ho ; Chan, Wing Shing ; Man, Kim Fung ; Leung, Shu Hung
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, Kowloon
Abstract :
This paper presents, for the first time, the design of a size-reduced rectangular patch hybrid coupler. Different types of compact rectangular patch hybrid couplers with different ground plane patterns are described. For demonstration, two compact rectangular patch hybrid couplers are designed to operate at 3.5 GHz. They are measured to have 30.1% and 33.3% bandwidth with 67.3% and 72.3% size reduction compared with the optimized one without patterned ground plane.
Keywords :
microstrip couplers; bandwidths; etched shapes; frequency 3.5 GHz; microstrip layout; patterned ground plane; rectangular patch hybrid coupler; size reduction; 3-dB hybrid coupler; Patterned ground plane structure; rectangular patch hybrid coupler;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
Conference_Location :
12/12/2008 12:00:00 AM
DOI :
10.1109/TMTT.2008.2009040
