Journal ArticleDOI
Gunn oscillator used as a phased-array aerial element
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TLDR
In this article, the authors investigated the feasibility of using the bias voltage as the phase-varying parameter in an array of synchronised Gunn oscillators to steer an antenna and showed that the interference pattern from two horns is made to sweep through a fringe wavelength with a voltage variation of 400mV in the bias of one oscillator.Abstract:
This letter describes an investigation into the feasibility of using the bias voltage as the phase-varying parameter in an array of synchronised Gunn oscillators to steer an antenna. The variation in bias changes the frequency of an unsynchronised oscillator, which, when locked, becomes a change in phase while it is oscillating at the pilot frequency. A simple experiment is described in which the interference pattern from two horns is made to sweep through a fringe wavelength with a voltage variation of 400mV in the bias of one oscillator.read more
Citations
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Journal ArticleDOI
Minimum signal pulse width for Gunn domain nucleation
TL;DR: In this article, the minimum trigger-pulse time for Gunn domains was measured by applying microwave signals, and was found to be 166 psec for a device with nl = 1013 cm−2.
References
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Journal ArticleDOI
A Study of Locking Phenomena in Oscillators
TL;DR: In this paper, a differential equation is derived which gives the oscillator phase as a function of time, and with the aid of this equation, the transient process of "pull-in" as well as the production of distorted beat note are described in detail.
Journal ArticleDOI
Injection locking of pulsed avalanche diode oscillators
TL;DR: In this article, a pulsed avalanche transit-time diode oscillator has been phase locked to a low-level CW signal, which reduces the incidental FM on the phase to a negligible amount and achieves pulse-to-pulse coherence.
Journal ArticleDOI
Relative phase shift in frequency locked avalanche oscillators
R.J. Socci,D.A. Fleri +1 more
TL;DR: In this paper, the authors describe an experiment in which two avalanche oscillators are frequency-locked through signal injection but not phase-locked, and the shift in the relative phase of the microwave output of each oscillator can be accomplished electronically by bias current variation.
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