Title :
Compact cascade quadruplet bandpass filter with extend rejection bandwidth
Author :
Jie-Ming Qiu ; Fu-Chang Chen ; Qing-Xin Chu ; Yun Wang
Author_Institution :
Sch. of Electron. & Inf. Eng., South China Univ. of Technol., Guangzhou, China
fDate :
March 30 2015-April 1 2015
Abstract :
This paper proposes a compact bandpass filter with excellent out-of-band performance. Stepped-impedance resonators (SIRs) are used to achieve an extended rejection bandwidth. Loaded stubs are also introduced to suppress the harmonic responses. The SIRs and the loaded stubs take up little extra room, and thus the proposed filter has a compact size. In this paper, a bandpass filter centered at 2 GHz is presented, with 20 dB rejection level up to about 16 GHz.
Keywords :
band-pass filters; radio networks; SIR; compact cascade quadruplet bandpass filter; extended rejection bandwidth; loaded stubs; rejection bandwidth; stepped impedance resonators; wireless communication systems; Indexes; Passband; Resonant frequency; Resonator filters; Bandpass filter; microstrip; spurious response; stepped-impedance resonators;
Conference_Titel :
Wireless Symposium (IWS), 2015 IEEE International
Conference_Location :
Shenzhen
DOI :
10.1109/IEEE-IWS.2015.7164532
