SU1364998A1 - Method of determining parameters of extended microwave circuits - Google Patents

Abstract

This invention relates to a radio measuring technique. The purpose of the invention is to enhance the functionality by providing a definition of the module and phase of the transmission coefficient of the microwave path. An uninterrupted microwave signal is scanned in frequency. The number of changes in the scanning process by frequency of the value of the if phase of the reflected microwave signal is determined by 360. The phases cfn and Up of this signal are measured at a frequency f, located near the lower limit of the scan and a frequency of 7 1.05. The amplitude Ug of the reflected signal normalized with respect to the incident wave is measured and the modulus and phase of the microwave transmission coefficient are determined by f-lamas. 1 il.

Description

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The invention relates to a radio metering technique and can be used to measure parameters and equalize extended microwave paths as part of radio engineering complexes.

The purpose of the invention is the expansion of (functional capabilities by

When scanning the frequency of a microwave signal using a frequency meter 4, fix the frequency f, near the beginning of the frequency scanning range and calculate the phase of the selected signal (at frequency f, -.

Lixirutot second frequency point f, 7, l, 05f, and calculate the phase of the reflection

ensure the determination of the modulus and the signal of the phase (j. Determine the rates of the transmission coefficient of the microwave path.

The drawing shows a structural electrical circuit diagram of a device that implements a method for determining the parameters of extended microwave paths.

The device contains a microwave generator 1, a coupler 2, an impedance sensor 3, a frequency meter 4, an attenuator 5, a microwave path 6, a controlled inhomogeneity 7, an amplifier 8 of a direct current in the power stabilization circuit of the microwave generator 1, selective amplifiers 9 , synchronous detectors 10, modulation frequency generator 11, calculator 12, indicator 13.

The method of determining the parameters of the extended microwave paths is implemented by an unlimited 180 K, where K is the number of LW LP phase transitions in a similar way. The Non-Intermittent Microwave Signal from the Microwave Signal is reflected, and N O, or V 1, Ratora 1 passes through the coupler 30 if the fractional part of the number I is less than 2, the sensor 3, the microwave path 6, and enters the input of the controlled inhomogeneity 7, where it is partially reflected in the opposite direction. When a controlled signal is applied from the generator 1 1, the coefficient-., G of the ratio of the controlled inhomogeneity 7 is manipulated with the frequency F and, accordingly, reflected from the controlled signal

Claims (1)

or more than 0.5, respectively. Invention Formula The method of determining the parameters of the microwave paths, which consists in the fact that an uninterrupted microwave signal, stabilized in amplitude, is passed through the microwave path, modulated in phase and passes into a microwave signal at the output of the microwave path, the opposite through the sensor 4 and reflect it to the input of the microwave path, signals at the input of the microwave path are proportional to the incident and reflected waves at the modulation frequency, about m-3 are fed to the inputs selectively amplified by 9, tuned to the frequency by the purpose of expanding the functionality after amplification in selections by providing determinative amplifiers 9 and synchronous modulus removal and phase of the repetition factor in synchronous detectors of the microwave path, the continuous microwave signals are constant. marriages arrive at Q-nal, scan by frequency, determine number of changes in the process my inhomogeneity 7 signal is intermediate coupler 2, Variable components with two adjacent sensor detectors the transmitter 12, where the module Ug and the phase C of the reflected signal 6 at the input of the microwave path 6 are calculated. Current with frequency variation Microwave Signal The value of the coefficient of the coefficient - 55 Microwave Signal, respectively, on the transmission frequency of a long microwave path is determined by the formula f The frequency scan of the phase of the reflected microwave signal WP at 360 ° measures the phases of the reflected where Kg - coefficient of proportionality. those f, located near the lower limit of the scanning range, and the frequency fo 7 / f, 1.05, are measured normalized with respect to the incident measured to 360 electrical length of the measured microwave path 6 at a frequency fi by the formula one   41 () Simultaneously with the calculation of the current value of the phase of the reflected signal Lf. determine the number of transitions B phases H, after 360 ° (from the fourth quarter of the trigonometric circle to the first or vice versa), The current value of the phase of the transmission coefficient of the measured microwave path 6 is determined by the formula (f + m signal, and N О, or V 1, if the fractional part of the number I is less than or more than 0.5, respectively. Invention Formula Microwave signal, respectively, on the frequency The frequency scan of the phase of the reflected microwave signal WP at 360 ° measures the phases of the reflected Microwave signal, respectively, on the frequency those f, located near the lower limit of the scanning range, and the frequency fo 7 / f, 1.05, are measured normalized with respect to the incident wave, the amplitude Ug of the reflected microwave signal and determine the modulus and phase of the transmission coefficient of the microwave path by the formulas and, Kf VU,; H   1- N + 180 ° K 1364998 where K f - coefficient of proportionality; N O or N 1 if fractional .y part of the expression or more than 0.5, respectively. less