Resonance Transmission of Dual Plates with Narrow Small Slots due to Two Parallel Wires for Frequencies around 2 GHz

• Published in: Journal of Electromagnetic Engineering and Science Vol. 21; no. 4; pp. 253 - 260
• Main Authors: Kim, Ki-Chai, Park, Gyeong-Sik, Min, Gyeong-Jun, Cho, Young-Ki
• Format: Journal Article
• Language: English
• Published: 한국전자파학회JEES 01.09.2021; The Korean Institute of Electromagnetic Engineering and Science; 한국전자파학회
• Subjects: dual plate; resonance transmission; small and narrow slot; transmission cross-section; 전자/정보통신공학; Dual Plate; Small and Narrow Slot; Resonance Transmission; Transmission Cross-Section
• ISSN: 2671-7255; 2671-7263
• DOI: 10.26866/jees.2021.4.r.32

This paper presents the transmission cross-section (TCS) of a dual plate with narrow small slots when a plane wave is incident from the left half-space. Numerical results show that the TCS depends mainly on the plate spacing for a specified frequency. The TCS fluctuates with the plate spacing; the fluctuation period is approximately 0.5λ. When the plate spacing is larger than 0.5λ, the TCS reduces to 90% in the single plate case, and TCS enhancement is extremely difficult. However, when the plate spacing is less than 0.5λ, the TCS decreases gradually to approximately 36% in the single plate case, and TCS enhancement can be realized using two parallel wires. The analysis results show that resonance transmission is effectively obtained by the wires connected on the slots for a plate spacing within 0.5λ. Experimental measurements are presented to validate the theory.