SU1322183A1 - Microwave ampliphasemeter - Google Patents

Abstract

The invention provides increased sensitivity. The microwave amplitude meter contains a geerator 1 microwave, a quadrupole 2 under study, a generator of 3 rectangular pulses, a frequency divider (QH) 4 by n, QH 5 by s, QH 7 by k, QH 10, 11 by two, phase manipulators (FM) 6 , 8, 9, 12, microwave adder 13, counter 14, quadratic detector 15, decoder 16, L voltage switches (KN) 17, L bandpass filters 18, adder 19, meter 20 signal level and meter 21 phase difference . The microwave adder 13 summarizes the signals of the microwave 1 generator, from which it passes through the quadrupole 2 and FM 6, 9 under study, and the second through FM 8, 12. The total signal passes through the quadratic detector 15 on the CN 17. The CC 17 controls the by square pulses of duration (Hz, generated by DC 7 by k. At the output of each KN 17, the sequence of pulses is shifted relative to the signal at the output of the first KH 17 by the value (l 1,2, ... determined by the decoder code 16). Adder 19 sums the signals with L bandpass filters 18. Introduction of the adder 19 and L pa It is possible to increase signal-to-noise ratio by a factor of L in power. 1 d.c. (L 00 th 00 00

Description

113

The invention relates to a technique for measuring on microwave,

The purpose of the invention is to increase the sensitivity.

The diagram shows the structural electrical circuit of the microwave amplification meter.

The microwave amplifiers consist of a microwave generator 1, a quadrupole 2 under study, a generator of 3 rectangular pulses, a divider 4 frequencies per n, a divider 5 frequencies per second, a first phase manipulator 6, a divider 7 frequency per k, a third phase manipulator 8 , the second phase manipulator of the torus 9, the first divider of 10 hours by two, the second divider 11 of the frequency by two, the fourth phase manipulator of 12, the microwave szpch1mator 13, the counter 14, quadratic detector 15, the decoder 16 with L outputs, L voltage switches 17, L bandpass filters 18, adder 19, the signal level meter 20, the phase difference meter 21.

The signal from the output of the 1 A cosat generator is fed to the investigated four-phase 2, at the output of which it takes the form (cat tp). The first input of the microwave adder 13 receives the signal a | (t) (passed the quadrupole under study 2, pb; pb 6 and the second 9 phase handles, and the second input of the microwave adder 13 receives a signal), which passed the third 8 and quarter 2 phase handles. The output of the quadratic detector 15 is a signal proportional to

laj (t) | | a, (t) h-ajt) |

The control inputs of the switches 17 are given a sequence of rectangular pulses of duration T

 1, de .--- -..-. ---

F is the frequency of the generator 3, and the duty cycle L, specified by the counter 14. At each output of the switches 17, such a sequence is shifted relative to the signal by. the output of the first switch 17 to the value of t J i, where 1 1,2 ,,,, is determined by the code of the decoder 16, the Band Filters 18

5, - and

tuned to frequency -,

VNIISH Order 2858/40

Produced polygr, pr-tie, g, Uzhgorodd st. Project, 4

j

Q, 27 Fr

five

five

0

five

,

0

83

where p - - - with

and have a bandwidth of uF "2F. In the sufttor 19, the signals are summed from the L outputs of the bandpass filters 18.

Claims (1)

Such a circuit provides an increase in the signal-to-noise ratio B L times in accordance with the invention. The microwave amplitude meter containing the SEC generator, the output of which is an output for connecting the test quadruple, serially connected the first phase handler, the input of which is the input for connecting the test pole four, the second phase handler, the microwave with the mmator and the quadratic detector, meters signal level and phase difference, the third and fourth phase manipulators connected in series between the output of the microwave generator and the second input of the microwave adder, a rectangular generator mpulsov coupled to inputs of the frequency divider; on p, on c, on k, the outputs of the frequency dividers on a and on c are connected to the control inputs of the first and third phase switches, respectively, and through the first and second frequency dividers to two - to the control inputs of the second and fourth phase manglottor tori, respectively, the output of the frequency divider by k is connected to the reference input of the phase difference meter, characterized in that, in order to increase the sensitivity, L parallel circuits are inserted, each of which consists of a series-connected voltage switch and bandpass About the filter, the inputs of parallel chains are connected to the output of a quadratic detector, and the outputs are connected to an input adder, the first output of which is connected to the signal level meter, the second to the phase difference meter, and the output of the frequency divider by k is connected to the input of the input a counter whose L outputs are connected respectively to the L inputs of the input decoder, each of the L outputs of which is connected to the control input of the corresponding voltage switch, Circulation 730 Subscription