Micromachined Millimeter-Wave Rectangular-Coaxial Branch-Line Coupler With Enhanced Bandwidth
Micromachined Millimeter-Wave Rectangular-Coaxial Branch-Line Coupler With Enhanced Bandwidth
复制标题
具有增强带宽的微机械毫米波矩形同轴分支线耦合器
DOI：
--
复制
发表时间：
2009
影响因子：
4.3
通讯作者：
F. Huang
中科院分区：
文献类型：
--
作者：
Yi Wang;M. Ke;M. Lancaster;F. Huang
宽带毫米波分支线耦合器已被证明使用微机械充气矩形同轴线支持的四分之一波长短截线。同轴电缆是由五层镀金硅或SU 8片粘合而成。测量的耦合器显示在频率31.3-47.6 GHz之间的耦合端口和直通端口中的插入损耗为3.2-4.0 dB。隔离度优于12.8dB，回波损耗小于-10dB。除了提供支持外，如果放置得当，短截线还可以增强带宽。
Wideband millimeter-wave branch-line couplers have been demonstrated using micromachined air-filled rectangular-coaxial lines supported by quarter-wavelength stubs. The coaxial lines are constructed by bonding five layers of gold-plated silicon or SU8 slices. The measured coupler shows an insertion loss of 3.2-4.0 dB in the coupled and thru ports between the frequencies 31.3-47.6 GHz. The isolation is better than 12.8 dB, and the return loss less than -10 dB. In addition to providing support, the stubs enhance bandwidth when properly placed.