Resonant power transmission through a ridged circular aperture with variable aperture dimensions and its arrays
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The transmission resonance characteristics of a single-ridged circular aperture (RCA) were analyzed using the finite-differ-ence time-domain method, and it was found that the transmission cross section (TCS) at the resonant frequency was quite similar to the theoretical TCS. The resonant frequency and corresponding TCS varied as the shape of the ridge changed because a change in the shape causes a change in the capacitance component. The maximum and minimum TCSs were investigated for cases wherein two RCAs were arranged collinearly and side by side. The resonance phenomenon did not differ significantly, even when the ridge width or gap was changed. Finally, the TCSs were compared with the gain ratios when two half-wavelength dipole antennas were arranged, and the duality between the resonant phenomena was satisfied.
Abstract
The transmission resonance characteristics of a single-ridged circular aperture (RCA) were analyzed using the finite-differ-ence time-domain method, and it was found that the transmission cross section (TCS) at the resonant frequency was quite similar to the theoretical TCS. The resonant frequency and corresponding TCS varied as the shape of the ridge changed because a change in the shape causes a change in the capacitance component. The maximum and minimum TCSs were investigated for cases wherein two RCAs were arranged collinearly and side by side. The resonance phenomenon did not differ significantly, even when the ridge width or gap was changed. Finally, the TCSs were compared with the gain ratios when two half-wavelength dipole antennas were arranged, and the duality between the resonant phenomena was satisfied.
참고문헌 (12)
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