US PATENT SUBCLASS 343 / 861
.~.~.~ Adjustable

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}
861.~.~.~ Adjustable

DEFINITION

Classification: 343/861

(under subclass 860) Subject matter wherein at least one of the impedance elements has an adjustable electrical characteristic.

SEE OR SEARCH THIS CLASS, SUBCLASS:

723, for single adjustable length electrically long linear antennas.

745+, for antennas with variable reactance for tuning.

750, for antennas with adjustable reactance for loading.

823, for adjustable length balanced doublets. 854, for plural antennas with an adjustable coupling network.

868, for loop type antennas of adjustable configuration.