Title :
Wide-band bandpass filter using coupled three-line microstrip structure and plane capacitor
Author :
Hong-Wei Kao ; Te-Feng Chiao ; Jen-Ke Chen ; Ming-Cheng Tu ; Janne-Wha Wu ; Ching-Wen Tang
Author_Institution :
Dept. of Electr. Eng. & Adv., Nat. Chung Cheng Univ., Chia-Yi, Taiwan
Abstract :
A wideband bandpass filter topology is proposed with three plane capacitors attached to the symmetrical coupled three-line microstrip structure. It shows a quasi-elliptic wideband response with two transmission zeros added so as to enhance the selectivity. This structure demonstrates 51% bandwidth with good insertion/return losses, flat group delay, sharp transition, and embedded DC-chock.
Keywords :
band-pass filters; elliptic filters; microstrip filters; embedded DC-chock; flat group delay; insertion losses; plane capacitor; quasi-elliptic wideband response; return losses; selectivity enhancement; sharp transition; symmetrical coupled three-line microstrip structure; transmission zeros; wideband bandpass filter topology; Band-pass filters; Capacitors; Filtering theory; Microstrip filters; Passband; Semiconductor device measurement; Wideband; Quasi-elliptic; symmetrical coupled three-line microstrip structure; wideband bandpass filter;
Conference_Titel :
Microwave Conference (EuMC), 2013 European
Conference_Location :
Nuremberg
