Millimeter wave radiometer of 8mm wavelength

摘要

This paer presents the rinciple of 8mm wavelength radiometer.This radiometer includes an antenna,a receiver subsystme,a calibration subsystem and a data-sampling and contorl subsyste.It uses an all-power receiver,whose IF amplier gain is automatically controlled with PC computer.An antenna temperature is interpolated with a new calibration method,which is implemented with a solid-state noise source (SSNS) adn a terminal matching load (TML).