Title :
Fourth-order tri-band bandpass filter using square ring loaded resonators
Author :
Chen, Jian-Zhang ; Wang, Nan ; He, Yuhong ; Liang, Chang-Hong
Author_Institution :
Sci. & Technol. on Antenna & Microwave Lab., Xidian Univ., Xi´an, China
Abstract :
A tri-band bandpass filter (BPF) using a novel square ring loaded resonator (SRLR) is presented. The SRLR can generate a tri-band response by tuning its geometric parameters. Moreover, it can build the high-order tri-band BPFs using the proposed resonators because of the sufficient coupling between adjacent resonators. A fourth-order Chebyshev tri-band BPF centred at 2.4, 3.5 and 5.2 GHz is designed and fabricated. Measurement results agree well with the full-wave EM simulated results.
Keywords :
Chebyshev filters; band-pass filters; microwave filters; resonator filters; fourth-order Chebyshev triband bandpass filter; frequency 2.4 GHz; frequency 3.5 GHz; frequency 5.2 GHz; geometric parameters; square ring loaded resonators;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2010.3724
