Title :
The W Band Radiometer for Imaging
Author :
Quan, Lin ; Yong-Hong, Zhang ; Qi-Ke, Chen ; Yong, Fan ; Jian-Yu, Yang ; Liang-Chao, Li
Author_Institution :
Univ. of Electron. Sci. & Technol. of China, Chengdu
Abstract :
The paper describes a W band radiometer for imaging. A superheterodyne receiver with Dicke switch is used in this radiometer, whose millimeter-wave components, which include a millimeter-wave fundamental wave mixer, a harmonic mixer and a VCO are mounted on the back-end of antenna for lower transmission loss. By this means, the radiometer with sensitivity 0.5 k is achieved. Through the experiment of imaging, the radiometer is shown to meet the requests of the image system.
Keywords :
millimetre wave antennas; millimetre wave imaging; millimetre wave mixers; radiometers; remote sensing; superheterodyne receivers; Dicke switch; W band radiometer; antenna; fundamental wave mixer; harmonic mixer; imaging; millimeter-wave mixer; passive remote sensors; superheterodyne receiver; transmission loss; Aircraft navigation; Detectors; Frequency; Military aircraft; Millimeter wave technology; Radiometry; Surveillance; Switches; Temperature sensors; Weather forecasting;
Conference_Titel :
Communications, Circuits and Systems, 2007. ICCCAS 2007. International Conference on
Conference_Location :
Kokura
Print_ISBN :
978-1-4244-1473-4
DOI :
10.1109/ICCCAS.2007.4348286
