V.А. Nikolaev - Dr.Sc. (Eng.), Leading Research Scientist, JSC «RPC «NIIDAR». E-mail: Nikolaev@niidar.ru O.A. Bakurova - Engineer, JSC «RPC «NIIDAR». E-mail: OBakurova@niidar.ru

The shortcomings of the existing receiving antenna-feeder device horizontal polarization using a single band antenna elements. The broadband antenna amplifiers and baluns are devices complicates the schema of an existing antenna-feeder devices. The use of a large number of high-frequency cables with connectors significantly reduces the reliability of the system. Use as supporting structures of a large number of metal towers leads to the high cost of the existing receiving antenna-feeder devices. The proposed new modular version of the foster the active phased antenna array, free of the above disadvantages. New active phased array antenna designed for operation in over-the-horizon radar stations of spatial waves, and the lines of communication short-wave range. The module comprises two antenna element for a low frequency sub-band and four antenna element for high frequency sub-band. The usage of the dual-band antenna elements stabilizes the basic electronic characteristics. Each of the antenna elements are in the form bunk of the wire vibrators, optimized external noise. To obtain a unidirectional radiation pattern is used cardioid diagram of the construc-tion of the antenna element. All the antenna elements is supported on vertical supports height of 35 m and located at a distance of 28 m from each other. The anten-na elements allows to realize simultaneous reception from two opposite directions. Two wire feeders reduce allow to realize simultaneous reception of signals of both horizontal and vertical polarizations. The use of two-wire feeders, with minor loss, allows to refuse the use of broadband antenna amplifiers. The proposed scheme of separation of polariza-tions, greatly simplified diagram of the antenna elements by eliminating high-frequency connectors, cables and active radio components (antenna amplifier). Improved reliability of the antenna system. Simplified maintenance of antenna-feeder devices, reduction of opera-tional costs. Using the proposed modular design allows three times to reduce the cost of metal. The use of constructive-completed modules allows you to create antenna systems of any configuration with the desired electronic characteristics.

 

1. SHvedov V.N. Antennye reshetki KV-diapazona na osnove bezreflektornykh antennykh modulejj // Nelinejjnyjj mir. 2006. T. 4. №10.
2. Nikolaev V.A., Bakurova O.A. Novyjj modulnyjj variant priemnogo AFU dlja ZG RLS prostranstvennojj volny // Uspekhi sovremennojj radioehlektroniki. 2012. № 2.
3. Nikolaev V.A. Optimizacija izluchatelejj priemnojj antenny KV-diapazona // Antenny. 2006. № 6.
4. Nikolaev V.A. Odnonapravlennye izluchateli dlja priemnojj antenny // Antenny. 2006. № 8.
5. Nikolaev V.A., Bakurova O.A. Modernizacija sushhestvujushhego priemnogo AFU zagorizontnojj RLS prostranstvennojj volny // Antenny. 2012. № 7.