The simulation of the microwave shielding properties of the dual band pass frequency selective surface
2
Issued Date
2022-01-07
Resource Type
ISSN
17426588
eISSN
17426596
Scopus ID
2-s2.0-85123712287
Journal Title
Journal of Physics: Conference Series
Volume
2145
Issue
1
Rights Holder(s)
SCOPUS
Bibliographic Citation
Journal of Physics: Conference Series Vol.2145 No.1 (2022)
Suggested Citation
Samoh A., Chitaree R. The simulation of the microwave shielding properties of the dual band pass frequency selective surface. Journal of Physics: Conference Series Vol.2145 No.1 (2022). doi:10.1088/1742-6596/2145/1/012057 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/87451
Title
The simulation of the microwave shielding properties of the dual band pass frequency selective surface
Author(s)
Author's Affiliation
Other Contributor(s)
Abstract
Without proper caution, the microwave leakage from a microwave oven door can be harmful to users' health. In practice, the leaked radiation has to be blocked while the visible light is allowed to pass for a visual inspection of the cooking progress inside the oven. To fulfil the requirements, the door design based on the principle of the frequency selective surface (FSS) was proposed and the gridded square loop pattern was chosen. In the simulation conducted by COMSOL Multiphysics software, the size of the proposed FSS was given as 40.7×40.7 mm with a dielectric thickness of 2.8 mm. Two important characteristics in terms of shielding effectiveness (SE ) and optical transparency (OT ) of the proposed FSS configuration at normal incidence were simulated and found to be 62.7 dB and 57.5%, respectively. The simulation results indicate that the proposed FSS is applicable to a safety design of a microwave oven door in suppressing the microwave leakage. Parametric studies on the characteristics due to geometrical dimensions and glass substrate thickness were also investigated. These parameters were found to affect the shielding and transmitting performances of the proposed FSS.