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摘要
This article presents a cross-coupled folded substrate integrated waveguide (FSIW) cavity bandpass filter. A novel type of negative coupling between FSIW cavities has been investigated and demonstrated. A prototype of four-pole FSIW cavity bandpass filter has been designed, fabricated with multilayer standard printed circuit board process. The filter has good selectivity which is demonstrated by the measured results, indicating 7.5% bandwidth and more than 14-dB return loss. with good agreement obtained when compared with the simulated ones. In addition. the rejection hand of this filter is quite wide, implying good harmonic rejection.
- 出版日期2009-3
- 单位上海交通大学
