**Author details**

Tetyana Frolova<sup>1</sup> \*, Vyacheslav Buts2,3, Gennadiy Churyumov1,4, Eugene Odarenko1 and Vladimir Gerasimov<sup>1</sup>

1 Kharkiv National University of Radio Electronics, Kharkiv, Ukraine

2 National Science Center 'Kharkiv Institute of Physics and Technology', Kharkiv, Ukraine

3 Radio Astronomy Institute, National Academy of Sciences of Ukraine, Kharkiv, Ukraine

4 Harbin Institute of Technology, Harbin, China

\*Address all correspondence to: tetyana.frolova@nure.ua

© 2021 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

**4. Conclusions**

**Figure 13.**

**144**

**Figure 12.**

In this chapter, there were considered different approaches to exciting plasma by a regular electromagnetic field. As a microwave source, there was used a magnetron generator as well as two types of electrodynamic structures: resonators (the cylindrical resonator) and waveguides (the rectangular waveguide). An application of the given electrodynamic structures allowed the formation of an electromagnetic field needed for effective exciting plasma in the area of location of an active medium (for example, a bulb with gases mixture). The carried out investigations have pointed to distinct aspects of forming a regular electromagnetic field and its excitation as well as the features of plasma heating. It is significant that for exciting

*High-frequency power oscillogram: 1 – incident wave; 2 – backward wave; 3 – absorbed wave.*

*Some elements of the resonator: 5 – below-cutoff waveguide; 6 – movable piston; 9 – gas supply system; 10 – loop*

*Microwave Heating - Electromagnetic Fields Causing Thermal and Non-Thermal Effects*

*sealed microwave probe; 11 – vacuum window made of Lavsan film with mesh.*
