UA151182U - “oda” solid-state broadband power amplifier - Google Patents

Abstract

A solid-state broadband power amplifier contains a previous amplifier, a power divider, a power amplification unit and a power adder, respectively, connected in series on the frame, as well as a power supply and control and power supply. Moreover, the power amplification unit uses two specialized power amplifiers to increase its output power.

Description

The utility model relates to the field of radio engineering, in particular to solid-state power amplifiers for use in the product L-203B "Gardenia" for fighter aircraft, such as the MiG-29, as a high-frequency power output amplifier, namely to the solid-state wideband power amplifier "Oda".

There is an ultrahigh-frequency power amplifier (1Y), which has an input phase regulator, a matching device, a preamplifier, a microstrip divider 1/M, amplifiers with the number of M, a microstrip adder M/1, an output phase regulator.

The disadvantage of this power amplifier is significant power consumption at the output of the device due to the use of a microstrip adder. The second analogue is a solid-state power amplifier (2), which contains a pre-amplifier, a microstrip power divider, ultra-high-frequency amplifiers in the amount of M, an M-channel adder, a detector head and a distributor of modulating pulses.

The disadvantages of the second analog include the use of an elemental base, which does not allow obtaining a wide relative band of operating frequencies, as well as the presence of an M-channel adder of excessive overall dimensions.

The closest technical solution, both in essence and in terms of the tasks to be solved, which was chosen as the closest analogue, is a solid-state broadband power amplifier |Z), which contains a series-connected pre-amplifier, power divider, and power amplification unit on the frame and power adder respectively, as well as power supply and control and power supply.

The disadvantage of the closest analogue is its insufficient output power for use in modern fighter aircraft.

The basis of the proposed useful model is the task of obtaining a solid-state broadband amplifier of increased power at its output.

The task is solved due to the fact that the solid-state broadband power amplifier "Oda" contains two specialized power amplifiers.

The essence of the useful model, namely the solid-state broadband power amplifier "Oda", which contains a pre-amplifier, a power divider, a block of power amplifiers and a power adder, respectively, connected in series on the frame, as well as a power source and

The control is that the power amplifier unit uses two specialized power amplifiers to increase its output power.

The technical result of the claimed useful model is achieved by choosing the appropriate components for two specialized power amplifiers, in particular, the use of two microcircuits of the type СМРАб6О1СО25Е in each of the specified amplifiers, in which the optimal technical characteristics of the solid-state broadband power amplifier "Oda" are obtained, the values of which are given in tables.

Table of characteristics, unit of measurement 1 | Range of working frequencies.//-/:/// 7 /Ї77777777771Х7 ІІ 2 |Relationship of mugarobochchchzot, 9byd//-/-:/ | /- 140 | -

With |Output power level Rydb, Vt.d//|77 1100 | 7-2 4 Power gain factor dB. /: | 35 | - | - 5 |Masako////////7111111111111111111111Ї11171-1Ї111- 1

The obtained indicators, namely in point 4 of the table, indicate that the appropriate power has been achieved at the output of the solid-state broadband power amplifier "Oda".

Thus, the claimed power amplifier meets the "novelty" utility model criterion.

A block diagram of a useful model is shown in the drawing.

The solid-state broadband power amplifier "Oda" performs power amplification of the ultra-high-frequency signal.

The functioning of the claimed useful model is reduced to the fact (see the block diagram) that the ultra-high-frequency signal is fed to the input of the pre-amplifier (1), where it is amplified to the required level and enters the input of the power divider (2), which divides it into four channels and feeds to the input of specialized power amplifiers 1 and 2 (3, 4), which amplify the signals to the required output level, which then go to the compact power adder (5) on the radial waveguide. At the same time, the supply voltage is supplied to the pre-amplifier and specialized power amplifiers 1 and 2 from the power supply (7) through the power supply and control (6). The control signal is supplied externally.

So, the claimed solid-state broadband power amplifier "Oda" provides: - a wide relative band of operating frequencies of 40 95, - high linearity of the output signal, - an increase in the service life due to a reliable element base, - an increase in its output power.

Sources of information: 1. US patent Mo 6525610, published: 25.02.2003 - analogue. 2. Patent of the Russian Federation No. 2343625, published: 10.01.2009 - analogue.

Z. Patent SHA 149962 for the utility model "Solid-body broadband power amplifier "Elbrus".

Claims (1)

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