Journal ArticleDOI
Voltage tuning of concentric planar Gunn diodes
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TLDR
In this article, the frequency against voltage curves of planar planar Gunn diodes with concentric contacts are presented for three different contact geometries, each of them having a tuning range of more than one octave.Abstract:
Voltage tuning of Gunn oscillations in the frequency range 1.5–8.5 GHz has been achieved by using planar Gunn diodes with concentric contacts. Frequency against voltage curves are presented for three diodes with somewhat different contact geometries, each of them having a tuning range of more than one octave. This simple method of tuning over large frequency ranges is of great potential interest. The production process using evaporation and etching is described.read more
Citations
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Journal ArticleDOI
Analysis and simulation of domain propagation in nonuniformly doped bulk GaAs
TL;DR: In this paper, a study of domain behavior in nonuniformly doped bulk semiconductor devices is undertaken, leading to a simple graphical technique useful for the analysis of these structures.
Journal ArticleDOI
A tunable-frequency Gunn diode fabricated by focused ion-beam implantation
TL;DR: In this article, a planar Gunn diode with a focused beam of silicon ions and a linear doping-concentration gradient between the contacts was constructed by implanting the device with the focused ion beam and increasing the dose from contact to contact.
Journal ArticleDOI
The effect of illumination on Gunn oscillations in epitaxial GaAs
W.H. Haydl,R. Solomon +1 more
TL;DR: Coherent Gunn oscillations have been observed in long samples of epitaxial GaAs grown by both the solution and the vapor-transport methods on semi-insulating GaAs substrates as mentioned in this paper.
Dissertation
Design and characterisation of millimetre wave planar Gunn diodes and integrated circuits
TL;DR: In this article, the authors describe the design and characterisations of planar Gunn diodes and the associated millimetre-wave circuits for RF signal power enhancement, and several new measurement techniques for characterising oscillators and passive devices have also been developed.
Journal ArticleDOI
Two-dimensional Gunn-domain dynamics
TL;DR: In this article, a simple model describing the domain shape in two-dimensional samples was obtained, and the solution of the equation provided a good explanation for most of the domain motions observed experimentally in various samples of non-uniform shape.