V. I. Andrianov – Ph.D. (Eng.), Senior Research Scientist, Leading Research Scientist, JSC «Radio Engineering Corporation «Vega» (Mosсow)

E-mail: mail@vega.su

V. S. Verba – Corresponding member of RAS, Dr.Sc. (Eng.), Professor, General Constructor of JSC «Radio Engineering Corporation «Vega» (Mosсow)

A. V. Enyutin – Head of Department, JSC «Radio Engineering Corporation «Vega» (Mosсow)

K. V. Kozlov – Head of Laboratory, JSC «Radio Engineering Corporation «Vega» (Mosсow)

A. P. Kurochkin – Dr.Sc. (Eng.), Professor, Chief Research Scientist, JSC «Radio Engineering Corporation «Vega» (Mosсow)

I. Yu. Ryzhov – Research Scientist, JSC «Radio Engineering Corporation «Vega» (Mosсow)

V. E. Turuk – Ph.D. (Eng.), Deputy General Constructor of JSC «Radio Engineering Corporation «Vega» (Mosсow)

The aim of the article is to describe the results of development of a multibeam array-fed reflector antenna for the S-band syntheticaperture radar (SAR) for Earth surface monitoring. When this space-borne SAR works in the Scansar mode, the array-fed reflector antenna forms six separate beams of different shape in six different directions. These beams are formed in the vertical plane which is orthogonal to the spacecraft orbit. Earth surface surveillance is performed by serial switching of a couple of beams (one beam is directed in the near zone of the SAR swath and other beam is directed in the far zone of the SAR swath).

1. Vilenko I.L., Krivosheev Yu.V., Shishlov A.V. Gibridnye zerkal'nye antenny s obluchayushchimi aktivnymi fazirovannymi reshetkami // Antenny. 2011. № 10. S. 22–42.
2. Andrianov V.I., Yakuben' L.M. Gibridnaya zerkal'naya antenna UKV diapazona // Antenny. 2016. № 4. S. 18–21.
3. Verba V.S., Neronskiy L.B., Osipov I.G., Turuk V.E. Radiolokatsionnye sistemy zemleobzora kosmicheskogo bazirovaniya. M.: Radiotekhnika. 2010. S. 629–630.
4. Ryzhov I.Yu., Kozlov K.V., Kakshin V.V., Enyutin A.V. Raschetno-eksperimental'nyy metod opredeleniya diagrammy naprav-lennosti antenn bol'shikh elektricheskikh i fizicheskikh razmerov // Antenny. 2016. № 9. S. 73–77.