A 3M-device cavity-type power combiner
Abstract
This paper describes a new class of combiners which combine the powers from 3M (M = 1,2, . . .) active devices by coupling them to both magnetic and electric fields inside a rectangular waveguide cavity. The structure employs coaxial lines and probes for magnetic and electric coupling, respectively. Up to 18 Gunn diodes have been combined with combining efficiencies higher than 96 percent at X-band. The operation of all combiners was stable and neither spurious oscillations nor jump phenomena were observed. An eigenfunction approach is used to analyze the operating principles of the combiner network systematically. A description is given to operate the circuit under optimum conditions.
- Publication:
-
IEEE Transactions on Microwave Theory Techniques
- Pub Date:
- September 1983
- DOI:
- 10.1109/TMTT.1983.1131582
- Bibcode:
- 1983ITMTT..31..731M
- Keywords:
-
- Cavity Resonators;
- Coaxial Cables;
- Microwave Coupling;
- Power Efficiency;
- Rectangular Waveguides;
- Waveguides;
- Eigenvectors;
- Equivalent Circuits;
- Gunn Diodes;
- Network Analysis;
- Signal Mixing;
- Superhigh Frequencies;
- Electronics and Electrical Engineering