Title :
Compact dual-mode elliptic-function bandpass filter using a single ring resonator with one coupling gap
Author :
Hsieh, Lung-Hwa ; Chang, Kai
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
fDate :
9/14/2000 12:00:00 AM
Abstract :
A novel microwave dual-mode elliptic-function bandpass filter with one coupling gap structure is proposed. This filter has a 4.7% bandwidth at 1.805 GHz with 1.73 dB insertion loss. The filter provides less field perturbation of the ring resonator than conventional filters. Without the output coupling gap between the feed line and the ring resonator, a low insertion loss has been obtained. This compact, high performance filter is useful for mobile and personal communication systems
Keywords :
band-pass filters; elliptic filters; microstrip filters; microwave filters; resonator filters; 1.73 dB; 1.805 GHz; bandwidth; coupling gap structure; insertion loss; microstrip ring resonator; microwave dual-mode elliptic-function bandpass filter;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20001172
