Title :
A simple circuit for FSK modulation of Gunn oscillators
Author :
Patel, Bhagwati Charan ; Hobson, G.S.
Abstract :
A simple transmission cavity placed in the output transmission line of a CW Gunn oscillator can be adjusted to allow simple and cheap digital frequency modulation by bias modulation. Transition rates down to 10 ns have been demonstrated. A threshold switching voltage is required so that the circuit has noise immunity.
Keywords :
Digital modulation; Distributed parameter circuits; Fasteners; Frequency modulation; Frequency shift keying; Gunn devices; Oscillators; Probes; Tuning; Voltage;
Journal_Title :
Proceedings of the IEEE
DOI :
10.1109/PROC.1972.8604
