Title :
A simple and effective method for microstrip dual-band filters design
Author :
Chen, Chu-Yu ; Hsu, Cheng-Ying
Author_Institution :
Dept. of Electron. Eng., Southern Taiwan Univ. of Technol., Tainan, Taiwan
fDate :
5/1/2006 12:00:00 AM
Abstract :
A new type of novel low loss dual-band microstrip filters using folded open-loop ring resonators (OLRRs) is presented in this letter. Both magnetic and electric coupling structures are implemented to provide high performance passband response. The first passband and second passband of the designed dual-band filter can be easily and accurately shifted to a desired frequency band by adjusting the physical dimensions of OLRRs. Finally, the 2.4-GHz/5.7-GHz and 2.4-GHz/5.2-GHz dual-band filters are illustrated and measured in this letter.
Keywords :
UHF filters; band-pass filters; microstrip filters; microwave filters; network synthesis; resonator filters; 2.4 GHz; 5.2 GHz; 5.7 GHz; electric coupling structures; folded open-loop ring resonators; magnetic coupling structures; microstrip dual-band filters; passband response; Band pass filters; Couplings; Dual band; Frequency; Magnetic separation; Microstrip filters; Microstrip resonators; Optical ring resonators; Passband; Resonator filters; Dual-band; electric coupling; magnetic coupling; open-loop ring resonators (OLRRs); standing wave;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2006.873584
