Experimental study of power combinations using series-connected TRAPATT diodes
Abstract
The operating characteristics of two stacked S-band TRAPATT diodes and of two diodes connected in series within a single package were studied. Diodes of various active areas were cut from the same wafer. It was found that high-power operation of TRAPATT diodes, in and just below the S band, is possible by using the series connection and large active areas. Increasing the distance between pellets lowers the efficiency and oscillation frequency. This behavior is explained through a model in which it is assumed that equal square-wave voltages are applied to the two stacked diodes and the terminal voltage is a superposition of the square-wave voltages of the diodes with a delay time corresponding to the electrical lengths between the pellets. With two S-band diodes, a peak power of more than 200 W in the L band was obtained at 45% efficiency.
- Publication:
-
Electronics Communications of Japan
- Pub Date:
- August 1976
- Bibcode:
- 1976JElCo..59...94M
- Keywords:
-
- Avalanche Diodes;
- Microwave Oscillators;
- Power Conditioning;
- Power Efficiency;
- Trapatt Devices;
- Electrical Impedance;
- Network Synthesis;
- Pellets;
- Square Waves;
- Superhigh Frequencies;
- Ultrahigh Frequencies;
- Volt-Ampere Characteristics;
- Wafers;
- Electronics and Electrical Engineering