Analysis of two mutually coupled radial line transformers in dual-diode millimeter wave oscillators

Jin-Ping Xu

doi:10.1117/12.2298338

14 December 1992 Analysis of two mutually coupled radial line transformers in dual-diode millimeter wave oscillators

Jin-Ping Xu

Proceedings Volume 1929, 17th International Conference on Infrared and Millimeter Waves; 192965 (1992) https://doi.org/10.1117/12.2298338
Event: 17th International Conference on Infrared and Millimeter Waves, 1992, Pasadena, CA, United States

Abstract

Radial line transformers (RLTs) are widely applied to match the impedances of active devices and output waveguides in millimeter wave oscillators. A number of authors have studied the performances of a single RLT in rectangular waveguide theoretically and experimentally [1]-[4]. Since dual-diode oscillators with two mutually coupled RLTs are efficient for power-combining[5]-[6], it is necessary to analyse the structure of this kind of oscillators in order to make the design more accurately. The objective of this paper is to analyse the two mutually coupled RLTs constructed in dual-diode millimeter wave oscillators. The external circuit impedances looking outside from each of the two active de- vices are calculated by a combined technique of Galerkin's method and collocation technique. A large number of numerical results have been obtained. Some original conclusions are derived, which are helpful to the design and the adjustment of the dual-diode oscillators.

Citation Download Citation

Jin-Ping Xu "Analysis of two mutually coupled radial line transformers in dual-diode millimeter wave oscillators", Proc. SPIE 1929, 17th International Conference on Infrared and Millimeter Waves, 192965 (14 December 1992); https://doi.org/10.1117/12.2298338

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