PRECISION-UHF Transmitter, to work stably in the specified frequency range, WAS developed by Russian scientists.
The Ryazan State Instrument-Making Plant - a subsidiary of the Military-Industrial Complex MAPS designed transmitter microwave signals, which gives optimum power output in a specified frequency range and providing a reduction in the amplitude and phase noise, which allows its use in high-precision not previously applied areas of technology - radar, radio , radio navigation.
The invention relates to a microwave transmitters and amplifiers and can be used in radar, radio navigation, and other areas of technology.
A disadvantage of today#39;s microwave transmitters is that in the frequency range have no matching optimum for the input power. For this reason, in certain points of the frequency range in which the input power is not enough, while in others it is redundant.
Background to the practical application of microwave sources suggests that their use in high-precision navigation instruments is limited. Specifically, Doppler radar strict requirements to the noise level at the transmitter output. And to reduce the amplitude and the phase noise of the input power TWT should be optimal.
In the operation is unacceptable to regulate the input power attenuator manually, so when using pin - attenuator adjustment can be performed automatically, but pin - parasitic crosstalk attenuation affects that are generated by external electric and magnetic circuits. As a result, at the entrance there is a microwave amplifier parasitic modulation of the input power.
SUE RSIME specialists - Lebedev VM, Suvorinovym MI, Puzikova AD, Zelenyuk YI and Kolodko GN was developed microwave signal transmitter which gives the optimum power output at a predetermined frequency range and provides reduction of the amplitude and phase noise. These advantages allow the use of this transmitter in areas of high - radar, radio navigation.
This object is achieved in that for the optimal input power supply to the amplifier input microwave and reduce noise at the input and the output of the microwave transmitter between the second output of the oscillator and the control input of the attenuator included pin-frequency discriminator and a discriminator controlled by a current source. Problem current source - to provide DC stabilization through pin-attenuator and, consequently, to stabilize the input power and reduce noise microwave amplifier. Managing a power supply is provided from the discriminator that generates a frequency-dependent voltage current control pin-attenuator.
Manage optimum input power is automatically and with sufficient speed.
This transmitter may operate in continuous or pulsed mode. The use of technical solutions in practice will expand the range of operating frequencies of the transmitter, which is currently constrained by the terminal microwave amplifier.
Contact information:
390000, Ryazan, st. Kalyaeva, 32, SUE RSIME, otd.149,
E-mail: postmaster@pribor.ryazan.su
Zelenyuk Yuri I.
(0912) 77-23-27
Pospelov Vladimir Vladimirovich
(0912) 29-82-88
Oleg S. Lieberman
(0912) 24/01/06
