Accession Number : ADD000384

Title :   Antenna with Short Line Tuning Stub.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Tellier,Jacob ; Burnett,Henry G ; Lewis,Thomas S

Report Date : 31 Dec 1974

Pagination or Media Count : 6

Abstract : The patent relates to a system for providing lobing only when the system is switched to track operation and then only on receive and not on transmit. The normal track arm is replaced by a short tuning stub which is placed adjacent the output window of the standard trislot transmit-receive tube, so that the trislot reacts on the beam being received through the on-center feed to provide lobing action. A polarization sensitive grid having a plurality of parallel wires is located within the tuning stub. The stub is supported on bearings and is rotatable by means of a lever to switch the grid between the search mode position and the track mode position. An attenuation card is supported on a support plate within the tuning stub.

Descriptors :   *Antennas, *Patents, Beam steering, Impedance matching, Antijamming, Tracking

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE