US PATENT SUBCLASS 343 / 822
.~.~.~ Impedance matching network


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



343 /   HD   COMMUNICATIONS: RADIO WAVE ANTENNAS

700 R  DF  ANTENNAS {58}
793  DF  .~ Balanced doublet - centerfed (e.g., dipole) {17}
820  DF  .~.~ With coupling network or impedance in the leadin {2}
822.~.~.~ Impedance matching network


DEFINITION

Classification: 343/822

(under subclass 820) Subject matter wherein the passive coupling network includes one or more impedance elements constructed or proportioned to substantially eliminate the reflected wave energy between the doublet antenna and the receiver or signal energy source, caused by impedance differences.

SEE OR SEARCH THIS CLASS, SUBCLASS:

731+, 739+ and 811, for antennas with means to eliminate reflection therein or in the coupling circuits.

821, for impedance matching coupling circuits combined with balanced to unbalanced circuits and balanced doublets.

852, and 860+, for antennas in general combined with impedance matching networks.

SEE OR SEARCH CLASS

333, Wave Transmission Lines and Networks, 32+, and 124+ for wave transmission lines and networks involving impedance matching or impedance matching networks.