SU1518884A1 - Mutual phasing device - Google Patents

Abstract

The invention relates to radio engineering. The purpose of the invention is to improve the phasing accuracy while simplifying the device. The mutual phasing device contains a clock signal generator 1, a communication line 2, amplifying channels 3 ₁ -3 _N , each of which consists of a controlled phase shifter 4, an amplifier 5, a power divider 6, a phase meter 7, a balanced mixer 8 and directional couplers 9 and 10 as well as frequency doubler 11 and amplifier 12. The signal from generator 1 goes into communication line 2, and also doubler 11 and amplifier 12 goes through to channels 3 ₁ -3 _N , each of which is connected to communication line 2. In the channel from phase meter 7, a phase difference signal (reference and measured) is fed to a phase shifter. l 4. It changes the electrical path length of channel 3, adjusting all channels to the reference phase. The presence of a reference phase signal at the output of the mixer 8, which is the same for any channel with a minimum spread relative to the nominal value, leads to an increase in accuracy, and the use of a single generator 1 allows to simplify the device. 1 il.

Description

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The invention relates to radio engineering and can be used for the phasing of spatially separated amplifying channels with a common input.

The aim of the invention is to improve the accuracy of phasing while simplifying the device.

The drawing shows the layout of the device | Stv.

The phasing device contains a clock signal generator 1, a communication line 2, amplifying channels 3, ..., j, each of which is designed as an input controlled phase shifter 4, an amplifier 5, an output power divider 6, a phase meter 7, a balanced mixer 8 and the first 9 and second 10 directional taps, frequency doubler 11 and additional amplifier 1 2.

The device works as follows.

The signal from the clock signal generator-LOB 1 at the frequency of the frequency doubler and the amplifier 12 is split into the amplifying channels 3.,. 3 with the frequency 2w. In addition, from the generator output I, the frequency sync 1al enters the communication line 2 and creates a reflected wave in the communication line.

Each amplifier channel is connected to link 2 with directional couplers separating the incident wave, taking into account the transition damping; Ef, Af, cos (u; t -), and reflected EO Aocos (ujt - KL + КХ +), where A and AO are the amplitudes of the waves, t / and / o are their phases, K is the constant distribution of communication lines 2, - the coordinates of the inclusion of a directional junction, L - full length of the communication line 2. Balance mixer 8 represents

a waveguide design, consisting of

The two double T-bridges: the input to the frequency AI, the output to 2i ;, interconnected by two lateral shoulders through diode cells (not shown).

The signals from the directional coupler 9 and 10 are fed to the E- and H-shoulders of the input T-bridge, and removed from the E-arm of the output T-bridge.

A signal (+ E) is sent to one diode cell of the balanced mixer 8, to the second (). Pass a balanced mixer (quadratic signal transform), on the output

E-shoulder output-o get a difference signal

(- (En-Ej АА „(wt - КХ. + У„). Cos (о; t-KL + KX, -в,) - 2А „А„ cos (2u) t -KL + f + v,) ( 2wt + o

Thus, the phase of the double frequency signal does not depend on the position of the directional coupler (X-), but is determined only by the phases of the incident and reflected signals, the length of link line 2 (L), which is the same for the entire system of directional couplers. Phase Pp is the phase reference of the phasing system.

The reference phase signal is fed to the second input of the phase meter 7, the signal of the measured phase is fed to the first input through the output divider 6 of the power. From phase meter 7, a phase difference signal (reference and measurable) is fed to an input controlled phase shifter 4, which changes the electrical path length of the amplifier channel 3, adjusting all the amplifier channels to the reference phase 7.

Thus, the presence of a reference phase signal at the output of a balanced mixer that is the same for any amplifying channel with a minimum spread relative to the nominal value leads to an increase in accuracy, and using a single clock signal generator simplifies the device.

Claims (1)

Invention Formula A mutual phasing device containing a clock signal generator, to the output of which a communication line is connected, and n amplifying channels, each of which is connected in series, an input controlled phase rotator, an amplifier and an output power divider, a phase meter, the first input of which is connected to an auxiliary output one power divider, the output to the control input of the input controlled phase shifter, as well as the first and second directional taps, whose input is connected to the communication line, are different This is due to the fact that, in order to improve accuracy while simplifying the device, a doubler connected in series is introduced into it 51518884 frequency n D1) complementary amplifier, balanced mixer, the inputs of which are connected between the generator output are connected to the outputs of the directional sync signals and inputs of the input taps, and the output to the second controlled phasers of the amplifier-phase meter, with the linear channels and each channel The connection is short-circuited.