METHOD FOR MEASURING OF THE ANECHOIC COEFFICIENT IN A ZONE OF A TEST ANTENNA Russian patent published in 2018 - IPC G01R29/08 

FIELD: radio engineering and communications.

SUBSTANCE: invention relates to the field of radio engineering measurements. Method comprises emitting a signal using a radiating antenna and receiving a signal using a test antenna. Radiating antenna with a sum pattern at frequency f₁ and with a tracking pattern at frequency f₂ is used. First, an axis of the radiating antenna corresponding to a peak of pattern of the radiating antenna at the signal frequency f₁ is aligned with an axis of the test antenna corresponding to its peak of pattern, and at an output of the test antenna the signal level U₁ at frequency f₁ is measured, the axis of the radiating antenna corresponding to the peak of pattern of the radiating antenna at frequency f₂, is aligned with the axis of the test antenna corresponding to its angular pattern, the signal level U₂ at frequency f₂ is measured at the output of the test antenna and the equation of U₁ and U₂ is ensured. Then, the axis of the radiating antenna corresponding to the peak of pattern of the radiating antenna at the signal frequency f₁, is aligned with the axis of the test antenna corresponding to its peak of pattern, and rotating the radiating antenna around the axis corresponding to the peak of pattern of the radiating antenna at the signal frequency f₁, maximum value of the signal level U₃ at the output of the test antenna at frequency f₂ is fixed, and the anechoic coefficient K_a at frequency is determined from expression .

EFFECT: technical result consists in increasing the accuracy, increasing the dynamic range of measuring the anechoic coefficient, and also in reducing the measurement time.

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