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中文摘要：
提出一种地平面刻蚀共面紧凑型微波光子晶体（PBG）的共面波导结构，介绍了微波光子晶体的基本单元结构，并设计出具有90°弯折的共面波导样品。使用矢量网络分析仪测试该结构的散射参数，测量结果显示，其传输特性比普通的共面波导在高频部分具有较大的提高。同时，相比于传统的三维微波光子晶体，该结构具有导体损耗小，加工工艺简单，便于应用于光电封装和单片微波集成电路的特点。
英文摘要：
A novel coplanar waveguide using coplanar compact microwave photonic-bandgap （PBG） structure is proposed. The basic unit of microwave PBG structure is introduced and a waveguide sample with a 90 degree break is designed. Testing results obtained through vector network analyzer display an obvious promotion in transmission parameter, especially in the high frequency part. Meanwhile, compared with the common 3-dimension microwave PBG structure, this structure with a low conductor loss can be processed with standard planar fabrication technology, which makes it applicable in opto-electronic package and monolithic microwave integrated circuit （MMIC）.
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