ANTENNA SYSTEM OF TWO-COORDINATE DIRECTION FINDER Russian patent published in 2009 - IPC H01Q21/00 H01Q1/38 

FIELD: physics, radio.

SUBSTANCE: invention concerns radio engineering and can be used in the active and passive systems of radio direction finding on two angular co-ordinates in land and onboard devices at which the antenna system contains a flat antenna lattice with lamellar radiators. Antenna to system of a two-co-ordinate direction finder contains lamellar radiators and their systems cophased boosting in two sublattices which are disposed on one leg of the first orthogonal straight line, and are executed by mirror symmetrical concerning lamellar radiators in two sublattices located on other leg of the first orthogonal straight line. Lamellar radiators and their systems cophased boosting in two sublattices, located on one leg of the second orthogonal straight line, are executed by mirror symmetrical concerning lamellar radiators in two sublattices located on other leg of the second orthogonal straight line. Two feeding lines join high-frequency inlets of the phase circuit changer to exits of systems cophased boosting two sublattices located on one leg of the second orthogonal straight line. The device contains 180-degree phase-shifting parenthesizings.

EFFECT: bearing line direction stabilisation on two angular co-ordinates at radio direction finding in a frequency band.

3 dwg