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On the near-zone inverse Doppler effect

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3 Author(s)
N. Engheta ; California Inst. of Technology, Pasadena, CA, USA ; A. Mickelson ; C. Papas

Attention is invited to the recently discovered inverse Doppler effect which occurs in the near-zone field of an antenna emitting a continuous wave. On approaching the antenna, the received signal is blue-shifted in the far zone and then red-shifted in the near zone; and on receding from the antenna, the received signal is blue-shifted in the near zone and then red-shifted in the far zone. Calculations are presented for the ease where the antenna is a simple dipole. It is shown that this effect gives not only the vector velocity of the moving receiver but also its range, i.e., its distance from the antenna.

Published in:

IEEE Transactions on Antennas and Propagation  (Volume:28 ,  Issue: 4 )