Phase and Amplitude Transmission Measurement Using a Homodyne Receiver at Submillimetre Wavelengths

摘要

Utilisation of a sinusoidal phase modulation within the measurement path allows the realisation of a fast and precise measurement of transmission magnitude and phase without the requirement of a high frequency stabil- ity of the source. Calculation of the transmission coefficients is carried out based on the spectral intensities of the detected power at multiples of the modulation frequency.