ELECTRICAL CIRCUIT UTILIZING AVALANCHE TRANSISTOR FOR GENERATING AND TRANSMITTING SINE-WAVE ENERGY PULSES

摘要

A method and apparatus are shown for generating and transmitting very short and widely separated high frequency sine-wave pulses of electromagnetic energy into space. A transistor (TR3), a charging capacitor (C8), and an inductor (L1) are coupled into a first series loop path to form a discharge circuit. A bias voltage source (52), the same charging capacitor (C8), and a charging resistor (R13) are coupled into a second series loop path to form a recharging circuit. The bias voltage source is selected to be capable of biasing the forward conduction path of the transistor near its breakdown condition. The transistor is intermittently triggered into its breakdown or avalanche mode, and an antenna (56) is coupled to the inductor (L1) for transmitting the energy pulses.