Simple 2-GaAs-Read-diode-oscillator power-combiner module
Abstract
The paper describes a simple two-oscillator power-combiner module which, while being less compact than most combiners, is easily fabricated, has a high circuit efficiency, is mode free, is relatively insensitive to load changes and differences in oscillator characteristics, and has excellent FM noise properties. The device consists of two separate pretuned oscillators connected to the output ports of a modified commercial power divider. The lossy thin wall of the divider, normally provided to ensure a match at the divider input port when the output ports are matched, is replaced by a thin lossfree copper wall. The performance characteristics of the combiner are established at X-band frequencies using stabilized high-frequency GaAs Read-type IMPATT oscillators. Because of structural simplicity, it is expected that the combiner will be especially effective in the millimeter bands, where it is difficult to design combiners with high circuit efficiency.
- Publication:
-
Electronics Letters
- Pub Date:
- September 1976
- DOI:
- 10.1049/el:19760397
- Bibcode:
- 1976ElL....12..521G
- Keywords:
-
- Avalanche Diodes;
- Electronic Modules;
- Gallium Arsenides;
- Microwave Oscillators;
- Signal Mixing;
- Frequency Modulation;
- Noise Spectra;
- Power Efficiency;
- Superhigh Frequencies;
- Electronics and Electrical Engineering