V.I. Protasov1, O.S. Alekseev2

1,2 JSK “V.V. Tikhoimirov Professional Equipment Research Study Institute” (Zhukovsky, Russia)

1 protasov.v@nio9.niip.ru

The noise figure of the receiving channel is one of the technical characteristics that determines the range of the radar station. In order to calculate the real potential of the radar station, it is necessary to measure the noise figure of both the through-the-hole receiving channel and the first stage, the low-noise amplifier (LNA), with a given accuracy. Due to the specific features of the design, the receiving part of an active phased array antenna (AESA) is an LNA that is distributed across the aperture of the antenna array. Its value mainly determines the total noise figure of the through-channel receiver of the AESA radar.

Protasov V.I., Alekseev O.S. Comparative analysis of methods for estimating the noise figure of an active phased array antenna. Radiotekhnika. 2026. V. 90. № 1. P. 106−112. DOI: https://doi.org/10.18127/j00338486-202601-10 (In Russian)

1. Hlusov V.A., Docenko V.V. Sravnitel'nyj analiz kojefficienta shuma passivnyh i aktivnyh antennyh reshetok. Radiotehnika. 2018. № 2. S. 61-68 (in Russian).
2. Karl F. Warnick and Brian D. Jeffs. Efficiencies and System Temperature for Beamforming Array. IEEE Antennasand Wircless Propagation Letters. 2008. V. 7. Р. 656–568.
3. Almazov-Dolzhenko K.I. Kojefficient shuma i ego izmerenie na SVCh. M.: Nauchnyj mir. 2000. 240 s. (in Russian).
4. Sinani A.I., Gridnev V.I. Metod izmerenija kojefficienta shuma i shumovoj temperatury AFAR v sootvetstvii so standartami IEEE. Antenny. 2021. № 5. S. 37–45. DOI: https://doi.org/10.18127/j03209601-202105-04 (in Russian).
5. Usmanov R.R., Rjabikov V.V., Tjurin D.M. Izmerenie kojefficienta shuma AFAR. Pod red. A.I. Sinani, G.V. Kaufmana. V kn. «Antenny i radary s jelektronnym upravleniem luchom». M.: Radiotehnika. 2016. 234 s. (in Russian).