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Microwave resonator for operation in the whispering-gallery mode

  • US 4,992,763 A
  • Filed: 06/01/1988
  • Issued: 02/12/1991
  • Est. Priority Date: 06/05/1987
  • Status: Expired due to Fees
First Claim
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1. A microwave resonator having a resonant element for operation in the whispering-gallery mode, wherein the resonant element includes a flat circular disk having a diameter and a thickness, wherein said diameter is considerable larger than said thickness, and wherein said flat disk, when excited by an external excitation means, provides electromagnetic waves having resonant frequencies which are proportional to the diameter of the disk, said electromagnetic wave being confined in the whispering-gallery mode between a radius located at a periphery of the disk and a caustic internal surface having a radius smaller than the radius of said disk.

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