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Plane wave |
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Slow wave |
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Vertical reflection |
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Quarter-wave plate |
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Quarter-wave resonator |
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Half-wave plate |
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Half-wave resonator (open) |
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Half-wave resonator (short) |
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circular thread |
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charged plate |
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electrical stress between the conductors |
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one thread carrying a current |
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two threads |
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long thin coil in the air |