文档介绍：微波学报
Journal of Microwaves
ISSN 1005-6122,CN 32-1493/TN
topband
LI Meng-meng, DOU Jiang-ling, SHEN Tao
(Faculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming 650500,
China)
Abstract：A compact dual-band bandpass filter with wide stopband is proposed in this paper. Folded short-circuit
stub-loaded resonators, compact microstrip cell resonators(CMRC), and stepped-impedance resonators are adopted in the
filter design. Good isolation between two passbands and wide stopband are achieved due to five controllable transmission
zeros(TZ) generated by multiple resonators. A dual-band filter with compact size is fabricated and tested. The measured
center frequencies and insertion loss of the first and second passbands are and ,
respectively. The stopband frequency is up to with more than 15dB rejection level.
Key words：compact microstrip cell resonator, dual-band bandpass filter, short-circuit stub-loaded resonator,
stepped-impedance resonator, transmission zero