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The layout of the fragment ROFAR with a nonvolatile transmitting radio-frequency antenna and a powerful broadband radiophotonic the transmitting tract is operating in the B-mode class

Keywords:

V.M. Andreev – Dr. Sc. (Eng.), Head of Laboratory, Ioffe Physical-Technical Institute (St Petersburg)
D.F. Zaitsev – Dr. Sc. (Eng.), Main Designer, Head of Laboratory «Radiophotonic Systems», JSC «KRET»
E-mail: zaysev@yandex.ru
N.Yu. Novikov – Ph. D. (Eng.), Deputy Head of Laboratory «Radiophotonic Systems», JSC «KRET»
V.S. Kalinovsky – Senior Research Scientist, Ioffe Physical-Technical Institute (St Petersburg)
D.V. Mordasov – Junior Research Scientist, Laboratory «Radiophotonic Systems», JSC «KRET»
S.O. Slipchenko – Ph. D. (Phys.-Math.), Senior Research Scientist, Ioffe Physical-Technical Institute (St Petersburg)
I.S. Tarasov – Dr. Sc. (Phys.-Math.), Head of Laboratory, Ioffe Physical-Technical Institute (St Petersburg)
A.I. Fadeev – Junior Research Scientist, Laboratory «Radiophotonic Systems», JSC «KRET»


Describes the experimental results powerful broadband radiphotonic first line B - class radioimpulse to transmit signals to non-volatile antennas, the layout of the fragment ROFAR.
Thanks to the implementation of the work radiational line-class, its output pulses are generated with a spectrum fully consistent with the frequency response of the broadband antennas that efficiently increases the energy efficiency and the overall efficiency radiophotonic of the transmission path radio frequency signals to a broadband antenna without the use of powerful electronic or other amplifiers.
The range of durations of the transmitted pulses from a few nanoseconds to a fraction of microseconds, peak power of 10 W, adjustable in a wide range of repetition rate (kHz to several tens MHz). Center frequency consistent with the frequency response of the broadband antenna spectrum signals of the order of 400 MHz. The transmission coefficient is to + 10 dB.
This mode allows you to implement high-performance non-volatile photonic antenna for a wide range of applications in communications, radar and navigation. On the layout ROFAR obtained distance resolution of the order of several tens of centimeters.
All results are obtained for the first time we have developed a fully domestic, with no world analogues, element base.

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