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Standoff Acoustic Modulation of Radio Frequency Signals in a Log-Periodic Dipole Array Antenna

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2 Author(s)
Wetherington, J.M. ; Department of Electrical and Computer Engineering, North Carolina State University, Raleigh, NC, USA ; Steer, M.B.

An acoustic tone isonifying an antenna is shown to produce radio frequency (RF) distortion in a log-periodic dipole array. This distortion is capable of interfering with a sensitive receiver. The passive distortion produces two sidebands, the powers of which have a 1:1 relationship with both the RF and acoustic tone, but have nonmonotonic behavior with respect to RF and acoustic frequency.

Published in:

Antennas and Wireless Propagation Letters, IEEE  (Volume:11 )