US PATENT SUBCLASS 343 / 782
.~.~.~ With means reducing re-radiation into active antenna


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

700 R  DF  ANTENNAS {58}
772  DF  .~ Wave guide type (e.g., horn) {8}
781 R  DF  .~.~ With external reflector or director {3}
782.~.~.~ With means reducing re-radiation into active antenna


DEFINITION

Classification: 343/782

(under subclass 781) Subject matter wherein structure or arrangement is provided to reduce reflection or the effect or reflection of the transmitted wave energy from the reflector back into the active transmitting antenna.

(1) Note. This effect is sometimes referred to as matching the reflector to the active antenna. The effect is obtained, for example, by means of a second compensating reflector or tilting the antenna with respect to the reflector.

SEE OR SEARCH THIS CLASS, SUBCLASS:

762, for wave guide type antennas with means for moving the antenna for scanning, sweeping or orienting.

837+, for antennas with plural reflectors, particularly subclass 838, where one of the reflectors is a screening reflector.

841, for antennas with electrical shields.

862+, for antennas with coupling networks for impedance matching of an antenna to its coupling means, which include long line elements.

912+, for reflectors, per se.