Title :
Design of microstrip square loop stub loaded dual-mode filter
Author :
Mo, Shao-Guo ; Yu, Zhi-Yuan ; Zhang, Long
Author_Institution :
Inst. of Appl. Phys., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
A microstrip square loop stub loaded dual-mode filter with parasitic coupling between source and load is designed and fabricated. Two transmission zeros are obtained separately. One is controllable and inherent in its dual-mode coupling structure, and the other is introduced by the parasitic source/load coupling. The filter operates on 2.4 GHz with a fractional bandwidth (FBW) of 5.25%. It is evaluated by experiment and simulation with good agreement.
Keywords :
coupled circuits; microstrip filters; network synthesis; fractional bandwidth; frequency 2.4 GHz; microstrip square loop stub loaded dual-mode filter; parasitic source/load coupling; Couplings; Electromagnetic fields; Electronic mail; Filtering theory; Microstrip filters; Microwave filters; Physics; Resonant frequency; Resonator filters; Space technology; Microstrip filter; dual-mode; square loop; stub loaded;
Conference_Titel :
Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2009 3rd IEEE International Symposium on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-4076-4
DOI :
10.1109/MAPE.2009.5355858
