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http://dx.doi.org/10.5515/KJKIEES.2017.28.6.470

Miniaturization and Transmission Efficiency Improvement of Resonant Aperture Structure  

Yoo, Jong-Gyeong (School of Electronics Engineering, Kyungpook National University)
Yeo, Junho (School of Computer and Communication Engineering, Daegu University)
Ko, Ji-Whan (School of Electronics Engineering, Kumoh National University of Technology)
Kim, Byung-Mun (Department of Electrical and Electronics, Gyeongbuk Provincial College)
Cho, Young-Ki (School of Electronics Engineering, Kyungpook National University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.28, no.6, 2017 , pp. 470-477 More about this Journal
Abstract
As a method of the transmission efficiency improvement of an aperture smaller than the wavelength, we modified the conventional H-shaped resonant aperture to lower the resonance frequency of resonant aperture, and the transmission efficiency of resonant aperture was improved more than the conventional aperture. The maximum transmission cross section(TCS) calculated using the equivalent circuit tends to be almost equal to the maximum TCS from the small resonant aperture modified to improve the transmission efficiency. The transmission characteristics of resonant apertures can be quantified as the TCS, and the transmission efficiency of that can be compared. The modified resonant aperture has a maximum TCS increased by about 2.87 times from $846mm^2$ to $2,431mm^2$ compared to the H-shaped aperture, and the resonant frequency decreased from 5.06 GHz to 2.92 GHz, and the length-to-wavelength ratio of the aperture was reduced from 0.178 to 0.103.
Keywords
Resonant Aperture; Miniaturization; Transmission Cross Section(TCS); Frequency Selective Surface(FSS);
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