The Effect of Double-Peak Velocity Characteristics on Gunn Oscillations

Butts, L.; El-Ghazaly, S.M.

doi:10.1109/southeastcon48659.2022.9764099

Cited by 1 publication

(2 citation statements)

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“…For devices with transit lengths of 0.7μm and 1.65μm, the increasing intensity of the double Gunn effect gradually causes a larger range of oscillation frequencies. However, this correlation between the intensity of the effect and the frequency range is weak, unlike that presented in the case of the conventional Gunn diode [1]. This is expected from the complex device geometry and the more precise energy balance simulation method used in this simulation.…”

Section: Resultsmentioning

confidence: 81%

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Power-frequency performance of step-graded double Gunn diodes

Butts

El-Ghazaly

2023

J. Phys.: Conf. Ser.

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Simulations of conventional Gunn diodes containing the double Gunn effect have shown a significant increase in oscillation frequency and frequency range. However, conventional Gunn diodes suffer from higher phase noise, lower efficiency, and reduced temperature stability due to the lack of a hot electron injector. A study on the performance of a Double Gunn diode with a graded gap injector is presented. The second region of negative differential mobility is gradually introduced in several temperature-dependent mobility models, which are implemented in an energy balance simulation. Devices with transit lengths of 0.7μm, 1.1μm, and 1.65μm are simulated. All devices experience an increase in oscillation frequency with increasing intensities of the double Gunn effect. The frequency range doubles at significant intensities of the effect in the devices with transit lengths of 0.7μm and 1.65μm.

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Section: Resultsmentioning

confidence: 81%

“…The double Gunn diode was previously presented as a solution for generating low-noise, ultra-wide bandwidth mm-wave signals [1]. Charge transport simulations of the double peak velocity-field characteristics showed a higher tuning frequency range due to the second peak.…”

Section: Introductionmentioning

confidence: 99%

Power-frequency performance of step-graded double Gunn diodes

Butts

El-Ghazaly

2023

J. Phys.: Conf. Ser.

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The Effect of Double-Peak Velocity Characteristics on Gunn Oscillations

Cited by 1 publication

References 6 publications

Power-frequency performance of step-graded double Gunn diodes

Power-frequency performance of step-graded double Gunn diodes

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