The invention relates to an ultra-high frequency oscillator (11-14 GHz) having a plurality of transistors, stabilized on at least one of their electrodes by a microstrip line coupled to a dielectric resonator. The oscillator according to the invention groups the transistors on the periphery of an insulating...http://www.google.se/patents/US4567449?utm_source=gb-gplus-sharePatent US4567449 - Low noise oscillator operating in the ultra-high frequency range