RU3178U1 - Microwave Power Amplifier - Google Patents

Abstract

A device for amplifying microwave power, comprising a power source, a supply voltage circuit, an input filter, a diode protection unit, a control and light-signaling unit, switching devices and connectors, characterized in that an input filter connected to the power source through the supply voltage circuit is connected in series a connector, a diode protection unit, a control and light-signaling unit, the second input of the latter is connected to the input of the first switching device, into the circuit of which an amplifier is inserted, its first output is dklyuchen to the second switching device, and a circuit for passing signals of the second chain introduced low-power antenna amplifier, the output and input of which are respectively connected to first and second switching devices, equipped with high-frequency assembly, wherein a control unit interconnected signaling and switching devices with automatic mode selection.

Description

Microwave power amplification device

The proposed utility model relates to the field of radio electronics and can be used to increase the effect of ground and air communications, having a small emitting power of 1O - 20 W in the VHF range (with FM mod.). These are radio stations: military, communications of the Ministry of Internal Affairs, Ministry of Railways, exploration, commercial, etc. And also for use in medicine with a chain of increasing power in medical equipment.

Known power amplifiers containing a transistor, electronic switching, light signaling (1,2,3,4).

The disadvantage of these devices is the low efficiency, large dimensions and weight, high current consumption due to low efficiency. Incompatibility of high-frequency connectors with domestic equipment.

The closest in technical essence to the proposed utility model is a power amplifier NB-1OOR, with g | lJB a living transistor,

electronic switching, light signaling 5) |

However, in the well-known power amplifier, greater power consumption |

current, large dimensions and weight, as well as the lack of electronic charge;

"1" you.,,. The invention is aimed at improving reliability and simplification

This is achieved by the fact that in the device for amplifying microwave power along the supply voltage circuit, the input M is connected in series. CL.5 NOZ F 3/183

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filter connected to the connector, diode protection unit, control unit and light signaling, the output of the latter is connected to the first switching device, the amplifier is inserted into the circuit, its first output is connected to the second switching device, and a low-power amplifier is included in the signal transmission circuit amplifier (LNA), the output and input of which is connected respectively to switching devices equipped with connectors.

The drawing shows a schematic 6-block diagram of the proposed device for amplifying microwave power, containing seven independent nodes made on discrete elements, transistors, diodes, inductance capacitors, microstrip lines for general use,

The power amplification device comprises switching devices 1 and 1, an input filter 2, designed to prevent impulse noise from the ignition system, radio homing, a diode protection unit 3, which serves to protect the power amplifier from accidental polarity reversal and protection against current overloads, a control unit and light signaling 4, amplifier 5, which increases the output power of connected devices,

low power antenna amplifier (LNA) 6. To supply voltage and signal, there are connectors x1, x2, x3.

A device for amplifying microwave power operates as follows. . ,.,

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A voltage of 12-15 V is supplied from the DC source to the x3 connector, while the voltage removed from the input filter 2 is supplied to the diode protection unit 3, then to the control and light signaling unit 4, which only works in automatic mode. : V

bench press i.e. there is no need for external switching devices of one mode from another mode (reception / transmission) without applying a high-frequency voltage to the input. The control unit and light signaling 4 signals a two-color green indicator, which signals the reception mode of the LNA. The signal from the antenna device comes from connector x2 to the switching device 1, then to a low-power antenna amplifier (LNA) b, which increases the sensitivity of the receiving path. If necessary, a low-power antenna amplifier (LNA) 6 can be turned off both manually and by removing the supply voltage. When applying a high-frequency voltage to the input from the x1 connector without supplying voltage to a low-power antenna amplifier (LNA) b, switching devices 1 and 1 pass through them without loss of voltage of high-frequency signals, working in this case as a coordinated segment of a coaxial line in both directions. When applying high-frequency voltage through the x2 connector and when supplying the supply voltage, the control and light-signaling unit 4 turns off the low-power antenna amplifier (LNA) 6 and turns on the amplifier 5, operating in class C, and which increases the signal input to the device through the X2 connector less than 1O time. When the signal from the antenna input passes through the X2 connector with a gain of 8 - 1O dB (when the power is on), low-power

antenna amplifier (LNA) 6 supplying the amplified signal from the antenna to the XI connector. Thus, the automatic mode is the reverse mode of reception and transmission. During reception, the two-color indicator of the control unit and light alarm 4 glows green-green, and during transmission changes its color to red. Moreover, the power of all nodes occurs in the protection unit 3.

the design is simple, reliable in operation for vibration and temperature, has a large radius of action, has small overall dimensions and weight, full domestic equipment, can be operated both in stationary and in mobile conditions.

Information sources:

1. R. Felks 750 Practical schemes. Ed. 2O / 4OO8.

2. Erich Tart Red (translated from German) Reference manual on high-frequency circuitry. Yigd. World.

3. Powerful semiconductor transistors. Publishing House of Radio and Communication., 1985

4.A.M. Chernushenko. Designing screens and microwave devices. Ed. Radio and communications., 199

5. Prospect Radio stations and accessories, (prototype)

Author, V.N. Horsetail

Patent Specialist -j U} f (- i- & y G. L. Tselnik

Claims (1)

A device for amplifying microwave power, comprising a power source, a supply voltage circuit, an input filter, a diode protection unit, a control and light-signaling unit, switching devices and connectors, characterized in that an input filter connected to the power source through the supply voltage circuit is connected in series a connector, a diode protection unit, a control and light-signaling unit, the second input of the latter is connected to the input of the first switching device, into the circuit of which an amplifier is inserted, its first output is dklyuchen to the second switching device, and a circuit for passing signals of the second chain introduced low-power antenna amplifier, the output and input of which are respectively connected to first and second switching devices, equipped with high-frequency assembly, wherein a control unit interconnected signaling and switching devices with automatic mode selection.