空间电子技术2024，Vol.21Issue(4)：34-40,7.DOI:10.3969/j.issn.1674-7135.2024.04.006
D波段直接检波辐射计研制
Development of D-band direct detection radiometer
王嫣红 1楚然 1陈哲 2廖佳1
作者信息
- 1. 南京理工大学,南京 210094
- 2. 上海宝山气象台,上海 201999
- 折叠
摘要
Abstract
The microwave radiometer is a microwave remote sensing device that uses passive reception of microwave signals from atmospheric radiation to convert the radiant temperature of an object,and a D-band terahertz radiometer is designed in the paper through the key technologies of antenna feeder network and terahertz receiver.The radiometer is composed of a Cassegrain antenna and a D-band direct detection receiver,and the whole machine is fully localised.In the frequency range,the noise figure of the radiometer is less than 4.5 dB,the linearity reaches 0.9999,the sensitivity reaches 0.1 K(@integration time 20 ms),and the power consumption of the whole machine is less than 2.8 W.The D-band dual-polarisation radiometer is an important part of the microwave imaging detector,and it can be used for observing the parameters of the atmospheric window.关键词
D波段/辐射计/接收机/卡塞格伦天线Key words
D-band/radiometer/receiver/Cassegrain antenna引用本文复制引用
王嫣红,楚然,陈哲,廖佳..D波段直接检波辐射计研制[J].空间电子技术,2024,21(4):34-40,7.
