摘要
基片集成波导是一种具有低差损、低辐射、高品质因数的新型平面导波结构。文中利用基片集成波导结构设计并制作了一种X波段的带通滤波器,该滤波器易与其它微波平面电路集成。实测结果表明,该滤波器的中心频率是9.58GHz,相对带宽是8.35%,通带内的插入损耗是3.8dB,回波损耗<-15dB。
Substrate integrated waveguide is a new planar waveguide structure with low loss, low radiation and high quality factor. In this paper, an X-band substrate integrated waveguide bandpass filter is designed, fabricated and measured. This filter can be easily integrated with other microwave planar circuits. Experimental results show that it works at 9. 58 GHz, and has a relative bandwidth of 8.35%, insert loss of 3.8 dB and maximal return loss of - 15 dB in bandpass.
出处
《电子科技》
2009年第2期36-39,共4页
Electronic Science and Technology
关键词
X波段
基片集成波导
带通滤波器
X-band
substrate integrated waveguide
bandpass filter
