DocumentCode :
3485367
Title :
A spurious-free tunable bandpass filter
Author :
Zhang, Xiu Yin ; Chen, Jian-Xin ; Shi, Jin ; Xue, Quan
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, Hong Kong
fYear :
2008
fDate :
16-20 Dec. 2008
Firstpage :
1
Lastpage :
4
Abstract :
This paper presents a simple structure for suppressing the second-harmonic of tunable filters. The proposed resonator for the filter possesses the advantage that its resonant frequencies of odd-mode can be electrically tuned, whereas the even-mode harmonics can be suppressed. In addition, it is very simple and compact in structure. Based on the proposed resonator, a tunable filter with harmonic suppression has been implemented and compared to the counterpart without harmonic suppression. The comparison shows the second harmonics can be effectively suppressed with little impact on the passband performance.
Keywords :
band-pass filters; circuit tuning; harmonics suppression; resonator filters; passband performance; resonator; second-harmonic suppression; spurious-free tunable bandpass filter; tunable filters; Band pass filters; Frequency; Harmonics suppression; Passband; Power harmonic filters; Resistors; Resonator filters; Tunable circuits and devices; Varactors; Voltage;
fLanguage :
English
Publisher :
ieee
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
Type :
conf
DOI :
10.1109/APMC.2008.4958232
Filename :
4958232
Link To Document :
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