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Slotted cavity antenna

  • US 4,242,685 A
  • Filed: 04/27/1979
  • Issued: 12/30/1980
  • Est. Priority Date: 04/27/1979
  • Status: Expired due to Term
First Claim
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1. A crossed slot antenna comprising:

  • a resonant cavity having plural intersecting radiating slots formed in one wall thereof,an electrically conductive plate disposed within said cavity and substantially spaced from all internal cavity walls thereby lengthening the effective electrical resonant dimensions of the cavity for a given physical size of cavity, andr.f. feed means electrically connected to at least one point on said plate, substantially removed from its midpoint, for feeding r.f. signals to/from each of said plural slots via said plate with predetermined respectively corresponding relative phase relationships.

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