APPARATUS FOR ELECTRICAL ADJUSTMENT OF ON-BOARD RADAR ANTENNA Russian patent published in 1999 - IPC

FIELD: radar units. SUBSTANCE: the apparatus comprises an on-board radar, on-board radar antenna, optical sight, main adjustment target, collimator with a radiator in its focus installed in the near Frenel zone of the on-board radar antenna, adjustment proving ground, target simulator whose output is connected to the input of the collimator radiator, intermediate transparent target installed in the aircraft nose section with cross-hairs being value-of-base L distant from the aircraft construction line, the collimator is rigidly coupled to the optical sight, whose sight line is arranged in parallel with the collimator electric axis and is value - of base L distant from its center, and is electrically coupled through the air to the on-board radar antenna installed in the aircraft nose section; the main adjustment target has cross- hairs being value-of-base L distant from the aircraft construction line and is installed in the aircraft tail section; the collimator is oriented in such a way that the sight line of the optical sight is matched with the cross-hairs of the intermediate and main targets. EFFECT: reduced overall dimensions of the adjustment providing ground, with the accuracy of electrical adjustment remaining intact. 2 dwg