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End fed flat antenna

  • US 5,182,570 A
  • Filed: 12/04/1991
  • Issued: 01/26/1993
  • Est. Priority Date: 11/13/1989
  • Status: Expired due to Term
First Claim
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1. An end fed dipole antenna for radiating electromagnetic waves of wavelength λ

  • , said antenna comprising in combination;

    (a) a first element having an effective radiating length substantially equal to λ

    /4, said first element having a first end and an opposite second end;

    (b) a second element having an effective radiating length substantially equal to λ

    /4, said second element having a third end and an opposite fourth end, said first end, second end, third end and fourth end, respectively, being arranged on a common, substantially straight line with said second and third ends being adjacent to each other;

    (c) a third element having an effective transmission length substantially equal to λ

    /4, said third element having a fifth end and an opposite sixth end and being arranged adjacent to said first element with said fifth end adjacent to said first end of said first element and said sixth end both adjacent to and physically connected with said third end of said second element; and

    (d) energy providing means coupled to said first end of said first element and said fifth end of said third element for providing electrical energy to, and/or receiving electrical energy from said antenna.

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