CAJ | 학술논문

提出了一种新型四路空间功率分配/合成网络。网络能够完成一个波导端口与四个微带端口相互之间的等功率分配和合成，在网络工作频段29～31 GHz范围内，分配（合成）损耗约为0．2 dB。该网络能够方便地集成固态高功率器件如微波集成功率放大芯片，从而实现高功率合成放大技术。为了改进分配与合成时各微带端口之间的隔离性，还设计了一种基于改进型波导至微带的双探针传输结构的四路空间功率分配/合成网络。改进的双探针传输结构对应的微带端口之间的隔离度在29～31 GHz频率范围内大于12 dB。对两个四路网络背靠背对接的实物进行测试，结果显示其插入损耗约为1．5 dB，回波损耗为15 dB。
제출료일충신형사로공간공솔분배/합성망락。망락능구완성일개파도단구여사개미대단구상호지간적등공솔분배화합성，재망락공작빈단29～31 GHz범위내，분배（합성）손모약위0．2 dB。해망락능구방편지집성고태고공솔기건여미파집성공솔방대심편，종이실현고공솔합성방대기술。위료개진분배여합성시각미대단구지간적격리성，환설계료일충기우개진형파도지미대적쌍탐침전수결구적사로공간공솔분배/합성망락。개진적쌍탐침전수결구대응적미대단구지간적격리도재29～31 GHz빈솔범위내대우12 dB。대량개사로망락배고배대접적실물진행측시，결과현시기삽입손모약위1．5 dB，회파손모위15 dB。
@@@@A new type of four-way spatial power dividing/combining network is proposed and de-signed employing two waveguide to dual-probe microstrip structures.The spatial power dividing/combi-ning network achieves symmetrical four-way power dividing/combining with a loss of about 0.2 dB in 29~31 GHz.It is convenient for the proposed network to integrate solid-sate high power devices to realize high power combination such as MMIC power combinations .To obtain better isolation, a new network is proposed using two improved dual-probe microstrip structures in which the probes are attached by a resis-tor, in this way the isolations between the probes are better than 12 dB in 29~31GHz.The measured back-to-back insertion loss is less than 1.5 dB and the return loss is 15 dB.