Title :
Design of Triple-band Bandpass Filter Using Trn-section Stepped-Impedance Resonators
Author :
Lin, Xue Ming ; Chu, Qing Xin
Author_Institution :
South China Univ. of Technol., Guangzhou
Abstract :
On the basis of tri-section stepped-impedance resonator (SIR), a novel triple-band bandpass filter (BPF) is presented, which has a triple-band feature of three passbands at desired frequencies and high out-of-band suppression. The new coupling scheme at the input and output can improve the performance of the BPF, and the hairpin structure helps to reduce the size. A microstrip filter was designed and simulated, proving the concept in an excellent way. The prototype of the BPF achieved insertion loss of 2.2, 1.8 and 1.7 dB at 1.0, 2.4, 3.6 GHz, respectively.
Keywords :
band-pass filters; microstrip filters; resonators; frequency 1.0 GHz; frequency 2.4 GHz; frequency 3.6 GHz; insertion loss; loss 1.7 dB; loss 1.8 dB; loss 2.2 dB; microstrip filter; tri-section stepped-impedance resonators; triple-band bandpass filter; Band pass filters; Couplings; Dual band; Impedance; Microstrip filters; Microwave filters; Passband; Radio frequency; Resonator filters; Wireless communication; Triple-band filter; bandpass filter (BPF); hairpin; microstrip; stepped-impedance resonator (SIR);
Conference_Titel :
Microwave and Millimeter Wave Technology, 2007. ICMMT '07. International Conference on
Conference_Location :
Builin
Print_ISBN :
1-4244-1049-5
Electronic_ISBN :
1-4244-1049-5
DOI :
10.1109/ICMMT.2007.381479
