Proceedings of the Korea Electromagnetic Engineering Society Conference (한국전자파학회:학술대회논문집)
- 2003.11a
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- Pages.265-268
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- 2003
SIR CPW bandpass filter with folded feed structure for suppressing spurious harmonics
고조파 억압을 위한 피드 구조를 가진 SIR CPW 대역통과 여파기
- Park, Kwang-Sun (School of Electrical and Computer Engineering, Ajou University) ;
- Shin, Chull-Chai (School of Electrical and Computer Engineering, Ajou University)
- Published : 2003.11.15
Abstract
In this paper, we introduce the SIR typed bandpass filters in CPW structures for shifting spurious harmonic frequency into higher frequency band. And we proposed the effective feed structures for suppressing spurious frequency in the SIR typed CPW bandpass filters. The designed folded feed structures have lowpass filtering characteristic. They are very effective feed types in the CPW bandpass filters for suppressing harmonics. The measured results of the CPW bandpass filter with folded feed line shows that it has suppressed and wide out-of-band up to 5.8fo.