Title :
A compact wide stop band bandpass filter with loaded feeding structure
Author :
Ye Jundong ; Xingjian Zhong ; Dexin Qu ; Shujie Shi
Author_Institution :
Coll. of Commun. Eng., UST PLA, Nanjing, China
Abstract :
This paper presents a compact wide stop band bandpass filter using loaded feeding structure to enhance the out-of-band performance. The filter is constructed by three shorted parallel coupled stepped impendence resonators(SIRs), and is fed by tapping microstrip lines with open stubs loaded. The three order bandpass filter effectively suppresses the spurious pass band so that it has a so wide stop band. Measured results accord well with the simulated results, showing good performance of the filter.
Keywords :
band-pass filters; band-stop filters; microstrip lines; resonator filters; SIR; bandpass filter; compact wide stop band filter; loaded feeding structure; microstrip lines; open stubs; out-of-band performance; parallel coupled impendence resonators; stepped impendence resonators; three shorted impendence resonators; Bandwidth; Impedance; Indexes; Wireless communication; Zinc; SIR filter; feeding structure; harmonic suppression; wide stop band;
Conference_Titel :
Microwave and Millimeter Wave Circuits and System Technology (MMWCST), 2013 International Workshop on
Conference_Location :
Chengdu
DOI :
10.1109/MMWCST.2013.6814633
