高隔离三端口选通网络的研究与设计  

Research and design on high-isolation three-port attenuation network

作　　者：阮文州 姜建飞 蔡晓波[1] RUAN Wenzhou;JIANG Jianfei;CAI Xiaobo(Nanjing Research Institute of Electronics Technology,Nanjing 210039,China)

机构地区：[1]南京电子技术研究所,南京210039

出　　处：《空天预警研究学报》2024年第2期109-112,共4页JOURNAL OF AIR & SPACE EARLY WARNING RESEARCH

摘　　要：随着星载合成孔径雷达(SAR)技术的发展,对隔离度、轻量化的要求越来越高.为满足SAR的需求,采用LTCC(低温共烧陶瓷)基板腔体结构和微组装技术,设计了一种新型高隔离的三端口选通网络,以实现SAR的定标功能.测试结果表明,端口隔离度优于105 dB,1GHz带宽通道幅度平坦度小于1 dB,满足了设计要求.With the development of spaceborne synthetic aperture radar(SAR)technology,the requirement for isolation degree and lightweight is getting higher and higher.In order to meet the requirements of SAR,the LTCC(low temperature co-fired ceramic)substrate cavity structure and micro-assembly technology are used to design a novel high-isolation three-port gating network,so as to achieve the calibration function of SAR.The test results show that the port isolation degree is better than 105 dB,and the amplitude flatness of 1 GHz bandwidth channel is less than 1 dB,which meets the design requirements.

关 键 词：非延时SAR内定标 衰减网络 高隔离 LTCC基板 

分 类 号：TN958[电子电信—信号与信息处理]