DocumentCode
3750924
Title
Wideband bandpass filter with tunable passband
Author
Cong Tang;Xianqi Lin;Yong Fan;Kaijun Song
Author_Institution
EHF Key Lab of Fundamental Science, School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, China
Volume
3
fYear
2015
Firstpage
1
Lastpage
3
Abstract
In this paper, a tunable wideband bandpass filter based on stub-loaded stepped-impedance ring resonator is proposed. By changing the characteristic impedances of the loaded stubs, the bandwidth of the passband can be controlled with the center frequency unchanged. The even-and odd-mode method is applied to obtain the expression of S11 and S21. To validate the proposed strategy, a filter operate at 2 GHz is designed. The simulated results of the BPF show that the fractional bandwidth can be tuned from 149% to 65% with return loss better than 12.5 dB.
Keywords
"Band-pass filters","Bandwidth","Resonator filters","PIN photodiodes","Passband","Resonant frequency","Optical ring resonators"
Publisher
ieee
Conference_Titel
Microwave Conference (APMC), 2015 Asia-Pacific
Print_ISBN
978-1-4799-8765-8
Type
conf
DOI
10.1109/APMC.2015.7413507
Filename
7413507
Link To Document