Y波段固态谐波混频器研究  

Research on Y Band Solid-State Sub-Harmonic Mixer

作　　者：何月[1,2] 蒋均[1,2] 缪丽[1,2] 陆彬[1,2] HE Yue JIANG Jun MIAO Li LU Bin(Institute of Electronic Engineering, China Academy of Engineering Physics, Mianyang 621999, China Terahertz Research Center, China Academy of Engineering Physics, Mianyang 621999, China)

机构地区：[1]中国工程物理研究院电子工程研究所,绵阳621999 [2]中国工程物理研究院太赫兹研究中心,绵阳621999

出　　处：《微波学报》2016年第5期15-18,共4页Journal of Microwaves

基　　金：国家重点基础研究发展计划("973"计划)(2015CB755406)

摘　　要：为了进一步降低太赫兹接收机的噪声,介绍了基于平面肖特基二极管实现低噪声太赫兹谐波混频器的方法。在建立肖特基二极管较为精确的三维模型和电气模型的前提下,引入紧凑型hammer-head滤波器结构,同时结合低损耗石英固态电路混合集成的方法,研制了220 GHz和250 GHz太赫兹谐波混频器。测试表明：220 GHz混频器在205~235 GHz工作范围内最低双边带变频损耗小于6.5 d B,最低噪声温度小于650 K,250 GHz混频器在230~270 GHz工作范围内最低双边带变频损耗小于6.5 d B,最低噪声温度小于900 K。Aiming to reduce the noise of terahertz receiver advance dramatically,a method which is used to design low-noise terahertz sub-harmonic mixer based on Schottky diode is presented. After obtaining the accurate 3D model and electrical model of the schottky diode,the impact hammer-head filter structure and low loss quartz glass integrate circuit is adopted to design 340 GHz and 250 GHz terahertz sub-harmonic mixer. The measured result indicates that the lowest double sideband conversion loss and the lowest noise temperature of the 220 GHz sub-harmonic mixer is below 6. 5 d B and 650 K respectively within 205 - 235 GHz band. And the corresponding measured result is below 6. 5 d B and 900 K for 250 GHz mixer across 230 - 270 GHz.

关 键 词：太赫兹 肖特基二极管 固态电路 谐波混频 

分 类 号：TN773[电子电信—电路与系统]