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Planar antenna and antenna array

  • US 6,008,770 A
  • Filed: 06/06/1997
  • Issued: 12/28/1999
  • Est. Priority Date: 06/24/1996
  • Status: Expired due to Term
First Claim
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1. A planar antenna apparatus for radiating or receiving a radiowave, having a wavelength of one centimeter or less, of a radio communication system, comprising:

  • a planar substrate;

    an electric conduction layer which connects said planar substrate to a circuitry of said radio communication system, said electric conduction layer providing a tapered slot pattern for radiating and receiving the radiowave, wherein said tapered slot pattern is described by a following function;

    ##EQU4## wherein x is a variable of position coordinates on a radiation direction of said planar antenna apparatus, and a, b, and c are predetermined constants.

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