Title :
Design of dual-band bandpass filter using compact spiral-shaped microstrip resonators
Author :
Huang, Chien-Hsiang ; Li, Hsiao-Chun ; Chen, Chien-Hsun ; Horng, Tzyy-Sheng
Author_Institution :
Dept. of Electr. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung
Abstract :
In this paper, a compact dual-band bandpass filter using spiral-shaped half-wavelength resonator has been designed and implemented. In addition, for transmission zero generation, the tapped-line input/output feed mechanism is used in this filter. Based on this architecture, we can easily achieve a significant size reduction compared with conventional open-loop resonator BPF. A well agreement between measurement and simulation results has been obtained. The designed filter is attractive and suitable for applications where the filter area is very limited.
Keywords :
band-pass filters; microstrip resonators; dual-band bandpass filter; microstrip resonators; open-loop resonator; tapped-line input/output feed mechanism; transmission zero generation; Band pass filters; Circuits; Dual band; Filtering theory; Microstrip filters; Microstrip resonators; Passband; Resonant frequency; Resonator filters; Wireless LAN;
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.2008.4957928
