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Piezoelectric microwave resonator using lateral excitation

  • US 4,625,138 A
  • Filed: 01/30/1986
  • Issued: 11/25/1986
  • Est. Priority Date: 10/24/1984
  • Status: Expired due to Fees
First Claim
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1. A piezoelectric resonator activated by a lateral excitation, comprising:

  • a body of piezoelectric material including a pair of opposing major faces; and

    means for providing lateral excitation of said body of piezoelectric material, said means including a pair of spaced recesses on opposite sides of a central open area of said body, a pair of electrodes located in said recesses on said opposite sides, a surface of said area between said electrodes being raised above the uppermost level of said electrodes, and signal generator means connected to said electrodes on said opposite sides to apply said lateral excitation, said central area providing a piezoelectric gap region for energy trapping in said central area of said body.

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