Title :
Dual-Mode Dual-Band Bandpass Filter Using Stacked-Loop Structure
Author :
Chen, Jian-Xin ; Yum, Tsz Yin ; Li, Jia-Lin ; Xue, Quan
Author_Institution :
Wireless Commun. Res. Center, City Univ. of Hong Kong
Abstract :
In this letter, a dual-mode dual-band bandpass filter using stacked-loop structure is proposed, which allows two transmission paths to radio frequency (RF) signals. Each of them using dual-mode resonators results in respective passband. This can provide convenience to easily change one passband frequency, while another keeps almost the same. Several attenuation poles in the stopband are realized to improve the selectivity of the proposed bandpass filter. The theoretical and measured results are presented and show good agreement
Keywords :
band-pass filters; poles and zeros; radiofrequency filters; resonator filters; attenuation poles; band-pass filter; dual-band filter; dual-mode filter; radio frequency signals; stacked-loop structure; Band pass filters; Dielectric substrates; Dual band; Microstrip filters; Passband; RF signals; Radio frequency; Resonant frequency; Resonator filters; Wireless communication; Bandpass filter; dual-band; dual-mode; stacked-loop;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2006.880705
