DEVICE WHICH TESTS OPERATIONS OF PHASE-LOCK ANTENNA ARRAYS Russian patent published in 1997 - IPC

FIELD: radio engineering, in particular, assessing conditions of wide-band phase-lock antenna arrays. SUBSTANCE: device has fluctuating frequency oscillator 1, additional antenna 2, total phase manipulator 3, which is inserted between oscillator and antenna, tested phase-lock antenna array, which has serial circuit of N antennas 5 and digital phase shifters 6 ,7, 8, e shifters 6 , 7, 8, which are connected to inputs of adders. In addition device has control unit which has unit 11 which controls operation modes of phase-lock antenna array 11 and is connected to phase calculation unit 12 and test signal generation unit 13. N outputs of control unit 10 are connected to control inputs of digital phase shifters 6, 7, 8. Output of adder 9 is connected to serial circuit of receivers and measuring unit 15. Heterodyne signal for receiver 14 is designed as signal from fluctuating frequency oscillator 1. Control input of measuring unit 15 is connected to additional input of fluctuating frequency oscillator 1. Random sequence generator 16 is connected to control input total phase manipulator 3 and through delay line to third inputs of unit which controls operation modes of phase-lock antenna array 11. EFFECT: possibility of hidden integral check of antenna operations in its bandwidth. 3 dwg