Dynamic cathode boundary fields and transferred electron oscillators
Abstract
A unified dynamic cathode boundary model incorporating the Shaw static cathode boundary field (1969), the Rees constant cathode conduction current model (1975), and the Kroemer imperfect cathode boundary model (1968) accounts for important electrical features of both GaAs and InP oscillators, including effects of the relative magnitude of cathode electric field and threshold field value for negative differential mobility. The model is useful in the development of devices with dynamic cathode fields and saturating current-voltage characteristics, with conversion efficiencies superior to those attainable with a uniform space-charge oscillator. Contact regions in which modest time-dependent variations in cathode field induce appreciable variations in cathode conduction current density are considered crucial.
- Publication:
-
IEEE Transactions on Electron Devices
- Pub Date:
- September 1976
- DOI:
- 10.1109/T-ED.1976.18528
- Bibcode:
- 1976ITED...23.1012G
- Keywords:
-
- Cathodes;
- Electric Fields;
- Gunn Diodes;
- Microwave Oscillators;
- Volt-Ampere Characteristics;
- Current Density;
- Electric Contacts;
- Energy Conversion Efficiency;
- Gallium Arsenides;
- Indium Phosphides;
- Space Charge;
- Electronics and Electrical Engineering