Design of Microwave Cavity for Heating Applications


  • Fatma Shkal Department of Electrical and Electronics Engineering, Sirte university, Sirte, Libya.



microwave cavity, uniform heating; high heating efficiency


Much attention has been given to microwave technology  due to their ability of reducing carbon emissions during heating in manufacturing operations. In comparison to conventional heating techniques, microwaves provide a number of benefits, such as faster heating, less thermal damage, and environmentally friendly processes. Heating must be consistent and effective for the use of microwaves in manufacturing process. In this paper, microwave cavity applicator was designed and simulated for heating applications. The cavity designed at frequency of 900 MHz to be accomplished to contain large size of samples. Distribution of the fields inside the cavity and the heating efficiency were simulated using COMSOL Multiphysics software.


Wei, W., Shao, Z.S., Chen, W.W., Zhang, P.J. and Yuan, Y., 2020. A fully coupled electromagnetic irradiation, heat and mass transfer model of microwave heating on concrete. IEEE Access, 9, pp.1575-1589.

Zhu, H., He, J., Hong, T., Yang, Q., Wu, Y., Yang, Y. and Huang, K., 2018. A rotary radiation structure for microwave heating uniformity improvement. Applied Thermal Engineering, 141, pp.648-658.

Chen, Y., Zhang, X., Luo, Z., Sun, J., Li, L., Yin, X., Li, J. and Xu, Y., 2021. Effects of inside-out heat-shock via microwave on the fruit softening and quality of persimmon during postharvest storage. Food Chemistry, 349, p.129161.

Zhan, L., Yang, Y., Li, W., Wang, G., Li, Y. and Wang, N., 2020. Drying kinetics and mechanical properties of low temperature microwave dried cashmere fibers. Textile Research Journal, 90(23-24), pp.2745-2754.

Fu, W., Dai, J., Zhang, Y., Guang, M., Liu, Y. and Li, B., 2021. Heating performances of high density polyethylene (HDPE) plastic particles in a microwave chamber. Sustainable Energy Technologies and Assessments, 48, p.101581.

Waudby, H. and Zein, S.H., 2021. A circular economy approach for industrial scale biodiesel production from palm oil mill effluent using microwave heating: Design, simulation, techno-economic analysis and location comparison. Process Safety and Environmental Protection, 148, pp.1006-1018.

Sivagami, K., Divyapriya, G., Selvaraj, R., Madhiyazhagan, P., Sriram, N. and Nambi, I., 2021. Catalytic pyrolysis of polyolefin and multilayer packaging based waste plastics: a pilot scale study. Process Safety and Environmental Protection, 149, pp.497-506.

Wu, Y., Yan, B., Yang, Y., Zhu, H. and Huang, K., 2020. Accordion microwave oven for uniformity and efficiency heating. International Journal of RF and Microwave Computer‐Aided Engineering, 30(6), p.e22190.

Shkal, Fatma. Microwave properties of carbon powders. Diss. Cardiff University, 2018.‏Environ. Exp. Bot. 92:73-82.