Title :
Compact dual-wideband bandpass filter using asymmetrical resonator
Author :
Hsu, Ko-Wen ; Chien, Chun-Hsien ; Tu, Wen-Hua
Author_Institution :
Dept. of Electr. Eng., Nat. Central Univ., Taoyuan, Taiwan
Abstract :
A compact dual-wideband bandpass filter using an asymmetrical resonator is presented. The proposed resonator consists of three uniform microstrip lines of different lengths, and provides not only three transmission poles but also two transmission zeros for each passband. Thus, the bandpass filter has wide bandwidths and sharp cutoff responses. Theory as well as experimental results are given to validate this design concept.
Keywords :
band-pass filters; microstrip filters; microstrip lines; microstrip resonators; poles and zeros; resonator filters; asymmetrical resonator; dual-wideband bandpass filter; transmission poles; transmission zeros; uniform microstrip lines;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2012.3633
