ULTRA-HIGH FREQUENCY OSCILLATOR WITH DIELECTRIC RESONATOR OF THE COMPACT HYBRID CIRCUIT TYPE

摘要

An ultra high frequency oscillator having a very high thermal stability using a transistor coupled by a microstrip-type transmission line to a dielectric resonator with a very low temperature coefficient. It incorporates a field effect or bipolar transistor and an insulating substrate metallized on one face forming the earth plane. The latter projects over the substrate at a point close to two microstrip lines deposited on the face of the substrate opposite to the earth plane, the transistor being welded to said projecting point of the earth plane and to the microstrip lines. The assembly forms a compact hybrid circuit.