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Conformal low profile wide band slot phased array antenna

  • US 5,648,786 A
  • Filed: 11/27/1995
  • Issued: 07/15/1997
  • Est. Priority Date: 11/27/1995
  • Status: Expired due to Fees
First Claim
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1. A cavity-backed slot antenna comprising:

  • a first array of conductive cavities extending from a first end to a second end, each of said first array of conductive cavities having inner conductive walls, said first array of conductive cavities having a length and a width of the cavities increasing in size from said first end toward said second end in accordance with a log-periodic scale;

    a second array of conductive cavities at said second end, said second array of conductive cavities having substantially the same width;

    a top conductive surface provided above the conductive cavities;

    an array of slots formed in the top conductive surface and at least a portion of each of the slots is provided in close proximity to at least one of the inner conductive walls of the conductive cavities, said slots increasing in effective length from said first end toward said second end; and

    feed means for communicating with the first array of conductive cavities.

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