Accession Number : ADA135335

Title :   Optimum Design of Millimeter-Wave Impatt Diode Oscillators.

Descriptive Note : Technical rept.,


Personal Author(s) : Hwang,Y S

PDF Url : ADA135335

Report Date : Oct 1983

Pagination or Media Count : 159

Abstract : The limitations and control of pulsed IMPATT diode millimeter-wavelength oscillators are described. A quasi-static oscillator model is established for characterizing amplitude and frequency behavior during pulsed operation in response to external influences such as bias current, temperature, optical injection, locking signal injection and RF circuit. The effect of these external parameters in oscillator turn-on, turn-off, frequency chirp during the pulse, and start-up jitter are given for a millimeter-wavelength oscillator using a Si double-drift diode. Methods of controlling the pulsed behavior including bias current compensation, optical compensation and injection locking are analyzed and applied to a pulsed millimeter-wave oscillator example. The optimum bias current and optical current waveforms which eliminate post turn-on frequency drift are presented. (Author)

Descriptors :   *Microwave oscillators, *Pulse generators, *Impatt diodes, *Silicon, Millimeter waves, Semiconductor diodes, Injection, Frequency response, Bias, Behavior, Optical properties, Drift, Radiofrequency, Compensation, Pulses, Parameters, Circuits, Optimization, Statics, Dual mode, Models, Oscillators, External, Frequency, Operation, Diodes, Optics

Subject Categories : Electrical and Electronic Equipment
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE