US PATENT SUBCLASS 343 / 864
.~.~.~.~ Quarter-wave transformer

Current as of: June, 1999
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343 /   HD   COMMUNICATIONS: RADIO WAVE ANTENNAS

700 R  DF  ANTENNAS {58}
850  DF  .~ With coupling network or impedance in the leadin {9}
860  DF  .~.~ Impedance matching network {2}
862  DF  .~.~.~ Including long line element {2}
864.~.~.~.~ Quarter-wave transformer

DEFINITION

Classification: 343/864

(under subclass 862) Subject matter wherein the impedance matching network element having distributed electrical parameters lies along the path of wave propagation through the network and is an odd integral number (including unity) of quarter-wave lengths long.

SEE OR SEARCH CLASS

333, Wave Transmission Lines and Networks,

35, for impedance matching networks in general having a quarter-wave transformer.