Temperature compensated solid state microwave oscillator

Claim 1

A SOLID STATE MICROWAVE OSCILLATOR COMPRISING, IN COMBINATION: (A) AN ELECTRICALLY CONDUCTIVE HOUSING; (B) A TRANSISTOR MOUNTED WITHIN SAID HOUSING, SAID TRANSISTOR HAVING (1) A BASE TERMINAL CAPACITIVELY COUPLED TO SAID HOUSING, (2) AN EMITTER TERMINAL, (3) A COLLECTOR TERMINAL, AND (4) AN INTERNAL COLLECTOR-BASE CAPACITANCE WHICH INCREASE WITH INCREASING TEMPERATURE, CAUSING REDUCTION IN THE OSCILLATOR OPERATING FREQUENCY; (C) MEANS FORMING AN EMITTER TANK CIRCUIT IN SAID HOUSING, (1) SAID EMITTER TANK CIRCUIT ELECTRICALLY COUPLED TO SAID EMITTER TERMINAL; (D) MEANS FORMING A COLLECTOR TANK CIRCUIT IN SAID HOUSING, (1) SAID COLLECTOR TANK CIRCUIT ELECTRICALLY COUPLED TO SAID COLLECTOR TERMINAL; AND (E) A RESISTOR CONNECTED ELECTRICALLY BETWEEN SAID BASE TERMINAL AND SAID COLLECTOR TERMINAL OF SAID TRANSISTOR, SAID RESISTOR (1) HAVING A POSITIVE TEMPERATURE COEFFICIENT, AND (2) OPERATING TO INCREASE THE COLLECTOR-BASE BIAS VOLTAGE ON SAID TRANSISTOR WITH INCREASES IN TEMPERATURE SO AS TO DECREASE SAID TERMINAL COLLECTOR-BASE CAPACITANCE AND THEREBY MAINTAIN THE OPERATING FREQUENCY OF SAID OSCILLATOR SUBSTANTIALLY CONSTANT IRRESPECTIVE OF TEMPERATURE CHANGES.