US PATENT SUBCLASS 219 / 747
.~.~.~ Phase shifting

Current as of: June, 1999
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219 /   HD   ELECTRIC HEATING

678  DF  MICROWAVE HEATING {15}
745  DF  .~ Field modification {3}
746  DF  .~.~ With power feed structure {3}
747.~.~.~ Phase shifting

DEFINITION

Classification: 219/747

Phase shifting:

(under subclass 746) Subject matter wherein a fractional or residual part of the microwave energy is changed in frequency to match the impedance of the cavity and load.