Title :
A novel compact bandpass filter with a triple-passband response
Author :
Guan, Xuehui ; Ma, Zhewang ; Cai, Peng
Author_Institution :
Sch. of Inf. Eng., East China Jiao Tong Univ., Nanchang
Abstract :
In this paper, a compact tri-band bandpass filter is designed and fabricated. Three passbands are realized by using two pair of SIRs. Between the second and third passband, a transmission zero is obtained. The band position of the filter can be controlled by changing the impedance ratio of the SIRs, and the bandwidths of the filter can also be controlled by modify the distance between resonators. The filter is compact since there is no additional impedance matching network is needed.
Keywords :
band-pass filters; impedance matching; resonator filters; bandwidth; compact bandpass filter; impedance matching network; impedance ratio; resonators; stepped-impedance resonators; transmission zero; triple-passband response; Band pass filters; Design methodology; Dielectric substrates; Filtering theory; Frequency; Impedance; Microstrip; Passband; Q factor; Resonator filters;
Conference_Titel :
Microwave Conference, 2008. APMC 2008. Asia-Pacific
Conference_Location :
Macau
Print_ISBN :
978-1-4244-2641-6
Electronic_ISBN :
978-1-4244-2642-3
DOI :
10.1109/APMC.2008.4958238
