METHOD FOR INTEGRATED MONITORING OF CHARACTERISTICS OF DIGITAL ACTIVE PHASED ARRAY ANTENNA Russian patent published in 2021 - IPC G01R29/10 

FIELD: radio engineering.

SUBSTANCE: invention relates to the field of radio engineering and can be used for integrated monitoring of the characteristics of a digital active phased array antenna (DAPAA) without removing it from the normal operation mode. The characteristics of the radiation pattern (RP) of the DAPAA are determined by simultaneously conducting low-frequency (LF) monitoring of each transceiver module (TM) by the amount of electric current consumed from the power source and if the value of the current consumed by the m, nth TM (where m is the line number of the DAPAA, m, 1 М M, and n - the number of its column, n=1…N) is higher than the permissible value, then the supply voltage is disconnected from this TM and it is excluded from the further control procedure, and the ultrahigh frequency (microwave) control of m, nth TM, which includes the determination of the complex transmission coefficients (CTC) of the power amplifier (PA) of the transmitting channel of the TM and the low-noise amplifier (LNA) of the receiving channel, as well as the complex reflection coefficient (CRC) of the microwave signal from the emitter connected to it. The results of the evaluation of the parameters of amplifiers and emitters, as well as data on the disconnection of the m, nth TM in cases of exceeding the permissible value of the current consumed by the m, nth TM or exceeding the permissible value of the CRC of the microwave signal from the emitters associated with them are taken into account in the process of modeling the radiation pattern of the DAPAA. In addition, the control signal for determining the CTC of the LNA is formed in the form of a bundle of coherent rectangular radio pulses, the duration of which is set in accordance with the bandwidth of the LNA, and the amplitude corresponds to the amplitude of the signals reflected from the target received at the input of the LNA when the DAPAA is operating in normal mode.

EFFECT: increase in the reliability and efficiency of monitoring the characteristics of DAPAA without removing the radar from the normal mode of operation, expanding the scope of the method and implementing it in mobile radars placed on mobile carriers.

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