Transmission Through a Narrow Slot in a Thick Conducting Screen

Cho, Young-Ki; Kim, Kun-Woo; Ko, Ji-Hwan; Lee, Jong-Ig

doi:10.1109/tap.2009.2013450

Cited by 13 publications

(8 citation statements)

References 16 publications

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“…Here, when the gap between the two plates is close enough, meaning much less than the wavelength of the incident wave, the resulting maximum transmitted power becomes constant, that is, λ/π, irrespective of the slit width and incident angle. Meanwhile, in the case of a thick conducting screen, the resonance transmission has been investigated by altering the thickness of the conducting screen [6]. In this situation, different resonance phenomena are observed when the resonance cavity is built along the longitudinal direction inside the slot region.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Mutual Coupling Phenomena in Subwavelength Ridged Circular Apertures and Half-Wavelength Dipole Antenna Arrays

Park

Kim

Song

2012

International Journal of Antennas and Propagation

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The resonant microwave transmission characteristics of several coupled subwavelength ridged circular aperture arrangements in a thin metallic film are investigated using the three-dimensional finite-difference time-domain (3D FDTD) method. Simple equivalent circuits represented by the self and mutual conductances that have been quantitatively extracted for each resonance condition, including the mutual coupling effects, are also devised with the help of virtual magnetic current elements. Furthermore, a duality is identified between the ridged circular apertures and conventional half-wavelength dipole arrays based on comparing the respective resonance conditions.

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Section: Introductionmentioning

confidence: 99%

Comparison of Mutual Coupling Phenomena in Subwavelength Ridged Circular Apertures and Half-Wavelength Dipole Antenna Arrays

Park

Kim

Song

2012

International Journal of Antennas and Propagation

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“…The power density at an observation point that is sufficiently distant in the broadside direction from the conducting plane might be included in suitable quantities. It is worthwhile to mention that the electromagnetic coupling problem through apertures in a conducting plane with finite thickness (t > 0) can be solved by MoM only for some special cases of aperture shapes, so that the fields inside the conducting plane can be expressed as the sum of eigen modes [17]. Otherwise, the MoM cannot be directly employed, but should be combined with another numerical method, such as the finite element method (FEM), to solve the problem.…”

Section: Numerical Analysismentioning

confidence: 99%

Resonant Transmission Through a Pair of Ridge-Loaded Circular Sub-Wavelength Apertures

Lee¹,

Cho²,

Ko³

et al. 2012

PIER M

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“…To our knowledge, the first theoretical study about three-dimensional electromagnetic transmission problems through a rectangular cavity and slot in a thick conducting screen was conducted by Jin and Volakis [7] using the finite element method (FEM). Since then, this problem has been treated by various methods, such as the Fourier transform and mode-matching techniques by Park and Eom [8], the modal expansion method by Cho et al [9], and a rigorous technique based on the Kobayashi potential method (KPM) [10]. In the field of physics, the extraordinary transmission phenomenon of subwavelength apertures has attracted considerable attention, and many studies have been reported in the field of optics [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Classification of Transmission Modes through a Narrow Slot in a Thick Conducting Screen

Kim

Park²,

Min

et al. 2022

J Electromagn Eng Sci

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This paper examines electromagnetic energy transmission through a narrow slot in a thick conducting plate when a plane wave is incident to the slot. The slot in the thick plate creates a waveguide structure. From the perspective of cutoff frequency, the transmission characteristics are classified into three modes. The transmission cavity resonance (TCR) mode in the range above the cutoff depends on the plate thickness, and peak transmission cross-sections (TCSs) appear periodically along the plate thickness, known as Fabry-Perot resonance. The near-cutoff resonance transmission (NCRT) mode depends on the slot length and plate thickness, and the maximum TCS appears only once as a slot length resonance (or transverse resonance). The peak TCS for the NCRT mode occurs with a thin plate thickness, which produces slot length resonance. The non-transmission cavity (NTC) mode is a non-transmission and non-resonance mode and is not propagated. All the maximum TCSs for the TCR and NCRT modes occur in parallel resonance. The analysis results show that the classification of the three transmission modes through the thick plate slot is effectively explained by the TCS and aperture impedance.

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Transmission Through a Narrow Slot in a Thick Conducting Screen

Cited by 13 publications

References 16 publications

Comparison of Mutual Coupling Phenomena in Subwavelength Ridged Circular Apertures and Half-Wavelength Dipole Antenna Arrays

Comparison of Mutual Coupling Phenomena in Subwavelength Ridged Circular Apertures and Half-Wavelength Dipole Antenna Arrays

Resonant Transmission Through a Pair of Ridge-Loaded Circular Sub-Wavelength Apertures

Classification of Transmission Modes through a Narrow Slot in a Thick Conducting Screen

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