一种新型的超宽带微带转共面带状线巴伦

设计了一种新型的微带转共面带状线（coplanarStripLine以下简称CPS）的巴伦结构。它可以应用于多种常用的介质板上，具有结构紧凑、超宽带、低损耗的特点。制作了一个两端为500微带线的背靠背电路，测试得插入损耗（S21）〉-1dB、回波损耗（S11）〈-15dB的带宽为2．7GHz～7．3GHz，S21〉-4dB、S11〈-10dB的带宽为1．4GHz～15．6GHz。

A Novel Ultra-wideband MS-CPS Balun Transition

A novel MS（microstrip）-CPS（Coplanar Stripline） Balun Transition has been developed. The transition is applicable to substrates with many common dielectric constant. Compact size. Ultra-wideband. low-loss？are its notable characteristics . the two back-to-back transitions with the same 50 microstrip feed lines are fabricated and tested. Measured results exhibit an insertion loss （S12）〉 -I dB and a return loss （Sll）〈 -15 dB over a bandwidth from 2,7 GHz to 7.3 GHz ,an S12〉 -4 dB and SII〈 -10 dB over a bandwidth from 1.4GHz to 15.6 GHz .