Title :
A Millimetre-Wave Self-Oscillating Mixer using a GaAs FET Harmonic-Mode Oscillator
Author_Institution :
Philips Research Laboratories, Cross Oak Lane, Redhill, Surrey RH1 5HA, UK.
Abstract :
A Ka-band self-oscillating mixer is described. The harmonic-mode oscillator which is constructed in microstrip produces 4 mW and as a mixer has a minimum detectable signal sensitivity of ¿121.6 dBm/Hz at a Doppler frequency of 4 kHz. It is potentially a cheap sensor for motion and proximity detection. Also, a serrodyne frequency translator is described. This was used to generate a Doppler frequency shifted signal and provided an easy method of assessing the SOM´s performance.
Keywords :
Circuits; FETs; Frequency conversion; Gallium arsenide; Microstrip; Mixers; Motion detection; Oscillators; Power generation; Reflection;
Conference_Titel :
Microwave Conference, 1986. 16th European
Conference_Location :
Dublin, Ireland
DOI :
10.1109/EUMA.1986.334203
