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Inflatable microwave antenna with variable parameters

  • US 3,321,763 A
  • Filed: 01/27/1965
  • Issued: 05/23/1967
  • Est. Priority Date: 01/27/1965
  • Status: Expired due to Term
First Claim
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1. A DIRECTIONAL MICROWAVE ANTENNA COMPRISING, A HELICAL ANTENNA SLIDABLY MOUNTED WITHIN A CYLINDRICAL DIELECTRIC TUBE, SAID DIELECTRIC TUBE INSERTED INTO A RECESS AT THE APEX OF A CONICAL-SHAPED SOLID DIELECTRIC, AN INFLATABLE BAG ATTACHED TO THE BASE OF SAID SOLID DIELECTRIC AND FORMING AN EXTENSION OF THE CONICAL SHAPE OF SAID SOLID DIELECTRIC, SAID BAG FILLED WITH PELLETS OF DIELECTRIC MATERIAL, AND MEANS TO PRESSURIZE THE INTERIOR OF SAID BAG.

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