Affiliations: [a] Institute of Radioelectronics, Warsaw University of
Technology, Warsaw, Poland | [b] Department of Industrial Engineering, University of
Padova, Padova, Italy | [c] Department of Microtechnology and Nanoscience,
Chalmers University of Technology, Göteborg, Sweden | Leibniz University of Hannover, Hannover, Germany | University of Pavia, Pavia, Italy | University of Padua, Padua, Italy
Correspondence:
[*]
Corresponding author: Przemysław Korpas, Institute of
Radioelectronics, Warsaw University of Technology, ul. Nowowiejska 15/19,
00-665 Warsaw, Poland. E-mail: pkorpas@ire.pw.edu.pl
Abstract: A solid-state microwave generators system is considered as an
alternative to the magnetron, in order to inject electromagnetic energy into
the cavity of a microwave oven for domestic use. Over current devices, the use
of solid state technology allows one to control the frequency and phase of the
electromagnetic field generated. Considering a simplified cavity with 2 solid
state sources, the influence of the electrical parameters on maximum efficiency
obtainable in the process of microwave heating is investigated. By varying the
frequency, different values of optimal phases and different values of maximum
efficiency are detected. Moreover, the procedure is repeated with varying the
position of one source port and the influence of geometry on the system
performance is evaluated. Our results demonstrate that the ability to control
the electrical quantities of a microwave heating process makes it possible to
obtain better results in terms of energy efficiency over the current poorly
controllable systems.
Keywords: Efficiency optimization, microwave oven, solid-state technology, phase control
