Title :
Miniaturized Multi-Pole Broadband Microstrip Bandpass Filter: Concept and Verification
Author :
Zhu, Lei ; Bu, Huizheng ; Wu, Ke ; Leong, Mook Seng
Author_Institution :
Poly-Grames Research Center, Department of Electrical and Computer Engineering, Ecole Polytechnique, C. P. 6079, Succ. Centre-Ville, Montreal, Quebec, Canada
Abstract :
A new class of miniaturized multi-pole broadband microstrip bandpass filters is proposed and developed by using the parallel-coupled line with frequency-distributed coupling and a line resonator loaded with open-end stubs. Operating mechanism of such a filter is explained, and its frequency response is optimized to show attractive features of the new scheme, namely, broad bandwidth of about 60% and single-resonator four-pole filtering behavior with S11<¿30dB. The total length of this filter is in the range of 0.5 to 0.75 guided wavelengths. The optimized results are well verified by HP Momentum simulations as well as our measurements over a wide frequency range.
Keywords :
Band pass filters; Calibration; Circuit topology; Coupling circuits; Equivalent circuits; Frequency; Microstrip filters; Microstrip resonators; Network topology; Resonator filters;
Conference_Titel :
Microwave Conference, 2000. 30th European
Conference_Location :
Paris, France
DOI :
10.1109/EUMA.2000.338628
