ANTENNA WITH ADJUSTABLE POLARISATION Russian patent published in 2008 - IPC H01Q9/00 

FIELD: physics.

SUBSTANCE: invention concerns antenna technology and can be applied in digital systems of radio, radio relay and mobile communication operating in metre and decimetre wavebands. Antenna with adjustable polarisation includes emitter in the form of square loop with bleeding from side middles to centre, flat reflector parallel to the loop plane, and coaxial cable connected to bleeders. Loop side tops and centre bleeders are connected in couples by silicon diode thyristors controlled by voltage fed over coaxial cable from control system. Electronic adjustment of the claimed antenna elements allows fast transition between polarisation types for selection of optimal signal to noise ratio in communication channel. In addition, the claimed antenna can be used in automatic device of antenna adaptation to signal polarisation structure, improving quality and reliability of received data.

EFFECT: enhanced jamming resistance of radio lines, improved antenna matching to cable, simplified construction, reduced construction weight.

2 dwg