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Half-Wavelength Dipole Antenna, слайд №1

Half-Wavelength Dipole Antenna, слайд №2

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Half-Wavelength Dipole Antenna, слайд №4

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Слайд 1

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Half-Wavelength Dipole Antenna

Слайд 2

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Simulation Geometry and Setup

Слайд 3

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Antenna Reciprocity To demonstrate reciprocity, two studies are performed. In Study 1, a voltage is applied to the Lumped Port, similar to the dipole antenna model discussed in In Study 2, the Lumped Port excitation is turned off, and a background field study is used, similar to the model discussed in The gain and antenna impedance from Study 1 are used to calculate the power this antenna would receive if it was illuminated with a 1 V/m plane wave in (1,0,0). Study 2 directly calculates the power received when illuminated with a 1 V/m plane wave in (1,0,0). Both methods return 2.6 μW.

Слайд 4

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Comparison with Theory Theory used is for a infinitely thin antenna, found in any standard antenna text. Maximum directivity is 1.64 Impedance is ≈ 73 Ω Note that real antenna parameters vary substantially with finite antenna radius, and the geometry here was intentionally chosen to be close the theoretical results. Simulated impedance is 73 + 3j Ω This agrees well with published values