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Radiation shielding and range extending antenna assembly

  • US 5,666,125 A
  • Filed: 06/08/1995
  • Issued: 09/09/1997
  • Est. Priority Date: 03/17/1993
  • Status: Expired due to Fees
First Claim
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1. An antenna assembly for use with a radio signal transmitting device, comprising:

  • an antenna for transmitting a radio signal from a radio signal transmitting device, the radio signal being transmitted at a transmission side of the antenna assembly and being block from transmission through a shielding side of the antenna assembly;

    a radiation absorber member disposed at the shielding side and disposed during use between the antenna and a user of the radio signal transmitting device;

    at least one of a first parasitic element disposed during use between the antenna and the user, and a second parasitic element disposed at the transmission side and disposed during use so that the antenna is between the second parasitic element and the user, at least one of the first and the second parasitic element being disposed from the antenna at a gap distance effective to direct a portion of the radio signal toward the transmission side; and

    a metal shell member disposed at the shielding side and disposed during use between the radiation absorber member and the user;

    whereby the radio signal transmitted from the antenna is blocked at the shielding side to prevent exposure of the user to the radio signal and is transmitted at the transmitting side for effective communication with a remote receiver.

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