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Wireless communication system using current formed underground vertical plane polarized antennas

  • US 4,829,310 A
  • Filed: 06/23/1982
  • Issued: 05/09/1989
  • Est. Priority Date: 10/02/1981
  • Status: Expired due to Fees
First Claim
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1. A wireless communication system including a transmitter/receiver for generating and processing electromagnetic signals, the system comprising:

  • current driver means comprising at least two conductors positioned in proximity to the earth'"'"'s surface, said conductors each comprising means for encouraging capacitive coupling of said conductors to the earth along a first portion of the length of said conductors such that a closed current loop is formed by said conductors in combination with the earth, said conductors of the current driver means having a sufficient overall length so that the closed current loop has a perimeter which is greater than one wavelength of said electromagnetic signals when propagating through the earth, whereby the earth and said current driver means function together as a vertical plane polarized antenna;

    means for connecting the transmitter/receiver to the current driver means; and

    means for inhibiting cancellation currents along a second portion of the length of the conductors.

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