Title :
Design of quadruple-passband microwave filters using frequency transformation
Author :
Lin, Wei-Chih ; Tsai, Wan-Ling ; Huang, Ting-Yi ; Wu, Ruey-Beei
Author_Institution :
Dept. of Electr. Eng. & Grad. Inst. of Commun. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
This paper describes a synthesis method for quadruple-passband microwave filters. A frequency transformation method is developed for finding the locations of poles and zeros of the filter response. An eight-pole microstrip quadruple-passband filter is synthesized for validation, with designed pass bands at 1.85-1.88, 1.943-1.97, 2.03-2.057, and 2.12-2.15 GHz. The filter is realized in microstrip and the measured results show good agreement with the theoretical ones.
Keywords :
UHF filters; band-pass filters; microstrip filters; frequency 1.85 GHz to 1.88 GHz; frequency 1.943 GHz to 1.97 GHz; frequency 2.03 GHz to 2.057 GHz; frequency 2.12 GHz to 2.15 GHz; frequency transformation method; microstrip quadruple passband filter; quadruple passband microwave filter; Band pass filters; Couplings; Filtering theory; Microwave filters; Passband; Passive filters; Resonator filters;
Conference_Titel :
General Assembly and Scientific Symposium, 2011 XXXth URSI
Conference_Location :
Istanbul
Print_ISBN :
978-1-4244-5117-3
DOI :
10.1109/URSIGASS.2011.6050662
