2007 ASIA PACIFIC MICROWAVE CONFERENCE, VOLS 1-5
|
2007年
关键词:
Microwave filters;
microstrip components;
D O I:
暂无
中图分类号:
TM [电工技术];
TN [电子技术、通信技术];
学科分类号:
0808 ;
0809 ;
摘要:
This paper demonstrates how spurious responses of planar microstrip-line bandpass filters can be effectively and selectively suppressed. This is achieved by exciting a lambda/2 microstrip-line resonator at appropriate points dictated by the standing wave nulls of the E-field established on the line corresponding to the relevant resonant mode to be eliminated. Excitation is achieved via distributed capacitance instead of chip capacitors, hence saving time and cost for practical realization. The work in this paper has been confirmed with practical results.