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Highly efficient planar antenna on a periodic dielectric structure

  • US 5,386,215 A
  • Filed: 11/20/1992
  • Issued: 01/31/1995
  • Est. Priority Date: 11/20/1992
  • Status: Expired due to Fees
First Claim
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1. An apparatus for transmission or reception of electromagnetic radiation along a path of propagation comprising:

  • a substrate having a spatially periodic dielectric lattice structure in which the lattice dimensions are proportioned to produce a band gap at a band of electromagnetic radiation frequencies such that radiation at such frequencies is substantially prevented from propagating in at least one dimension within the substrate; and

    an antenna overlying said substrate and exposed to said path of propagation for transmitting or receiving radiation at said band of frequencies.

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