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The coupling properties of an enclosure with apertures illuminated by a high power microwave (HPM) are simulated and analyzed with the finite-difference time-domain (FDTD) method. The variations of coupling electronic field (EC) with positions are investigated, and comparisons among different arrangements and spacing of apertures are made. The resonance effect is also studied. Results from the modeling...
TLM (transmission line model) is used to research the coupling characteristic of electromagnetic pulse and it is extended to calculate the coupling efficiency of double layer shielding cavity through apertures. The effect of single layer with aperture is compared with double layer with apertures on the coupling efficiency of electric field; the calculation results show that shielding efficiency can...
Frequency-selective surfaces (FSSs) with two sharp sidebands have been investigated, which are constructed by cascading and shunting two substrate integrated waveguide cavities (SIWCs) of different sizes with periodic slots at top and bottom metal surfaces. The lower and upper sharp sidebands are induced by two transmission nulls that are generated by coupling between the slot aperture resonance and...
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