GEMACS Animations

Surface Currents on a Sphere

Sphere Surface currents on a sphere of radius ka=6.283. Excitation is from a vertically-polarized plane wave incident from the right. Frequency varies from 10 MHz to 1,000 MHz.

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Full Size | Reduced Size

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Full Size | Reduced Size | Colorbar


Surface Currents on a Thin Plate

square plate Surface currents on a thin plate 38cm x 38cm. Excitation is from a vertically-polarized plane wave incident broadside to the plate. Frequency varies from 50 MHz to 3,000 MHz.

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Illuminated Side: Slow | Fast
Shadowed Side: Slow | Fast

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Plate Front: Slow | Fast
Plate Back: Slow | Fast


Electric Fields Inside a Circular Cavity of Radius

099 Electric Fields inside a circular cavity of radius = 30cm. Excitation is from a 1 V/m source in a small aperture at the left of the figure. Frequency varies from 20 MHz to 1,000 MHz.

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Cavity Mode | Sweep

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Frequency Sweep | Cavity Modes | Colorbar


Front-Fed Log Periodic Antenna

Log Front-Fed log periodic antenna. Frequency sweep is from 100 MHZ to 500 MHz.

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