US PATENT SUBCLASS 342 / 39
.~.~ With side lobe suppression

Current as of: June, 1999
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342 /   HD   COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION)

36  DF  AIR TRAFFIC CONTROL {1}
37  DF  .~ Secondary Surveilance Radar (SSR) or Air Traffic Control Radar Beacon System (ATCRBS) {3}
39.~.~ With side lobe suppression

DEFINITION

Classification: 342/39

With side lobe suppression:

(under subclass 37) Subject matter including circuitry means to exclude or greatly attenuate a portion of the beam for an antenna, other than the main lobe.

SEE OR SEARCH THIS CLASS, SUBCLASS:

379+, for directive radio wave communications utilizing correlation techniques to eliminate side lobes.