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Measurement of electromagnetic fields near a monopole antenna excited by a pulse

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3 Author(s)
Hamada, L. ; Dept. of Electron., Univ. of Electro-Communications, Tokyo, Japan ; Otonari, N. ; Iwasaki, T.

To observe transient radiation fields, a technique for reconstructing electromagnetic (EM) waveforms using the complex antenna factor (CAF) have been developed. However, the CAF is originally defined assuming plane wave incidence, while the waveforms are measured in a vicinity of the radiating source. In order to examine the reconstruction technique using the CAF in the near-field measurements, the EM fields radiated from a monopole antenna excited by pulsed input voltage was reconstructed and compared with calculated results. For the geometry of the experiment, the waveforms of the reconstructed and calculated EM fields have shown good agreement. Therefore, the reconstruction technique using the CAF can be used for similar dimensions or at a greater distance when sufficient sensitivity is provided

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Electromagnetic Compatibility, IEEE Transactions on  (Volume:44 ,  Issue: 1 )