SU966622A1 - Panoramic meter of standing wave coefficient and attenuation of microwave multi-terminal networks - Google Patents

Description

This invention relates to microwave measurement technology. The panoramic viewer of the standing wave ratio and the attenuation of the superhigh-frequency multi-polices, which is super-high-speed, is known. A common oscillator of oscillating frequencies, to the outputs of which, respectively, an attenuator and an indicator are connected, as well as microwave detectors fl.:. However, this meter has a limited dynamic range and low accuracy. The purpose of the invention is to expand the dynamic range and increase accuracy. The goal is to achieve the fact that the in-panoramic meter for the coefficient of standing wave and the attenuation of ultra high frequency multipoles, containing a super high frequency oscillator of oscillating frequency, to the outputs of which. respectively, an attenuator and an indicator are connected, as well as super high-sensitivity detectors, four-core ferrite dissociating elements are introduced, the first arms of which are connected to the output of the attenuator through the super high-frequency switch, the third shoulders to the corresponding shoulders of the ultrahigh multi-terminal, a switch and a switch to a single multi-pole switch, and the other shoulders to the corresponding shoulders of the ultrahigh-frequency switch under consideration the fourth shoulders through the corresponding input adjustable limiting a.ttenuator is connected to the corresponding superhigh-frequency detector, while the outputs from The high-frequency detectors are connected via an input low-frequency switch to the indicator. . The drawing. Is functional; diagram of the panoramic meter. The panoramic meter of the standing wave coefficient and the attenuation of microwave multipoles contains a super-high frequency oscillator 1 of oscillating frequency, to the outputs of which attenuator 2 and indicator 3 are connected, respectively, and ultra-high-frequency detectors 4 and 5. And the four shoulder ferrite connectors 6, the first of the rest of the five, too. 7 are connected to the output of the attenuator 2, the third shoulders - to the corresponding shoulders of the investigated microwave multipole 8, and k To each other, from the second and fourth shoulders, a corresponding super-adjustable attenuator attenuator 9 and 10 is connected to the corresponding microwave detector 4 and 5, while the outputs of the microwave detector 4 and 5 are connected to the JJOM 3 indicator via the low-frequency switch 11.

 Panoramic meter works as follows.

The signal from the microwave generator 1 through the attenuator 2 is fed to the microwave switch 7, which provides a signal to the first shoulder of one of the four-shoulder ferrite switching elements 6.

Adjustable out-of-limit attenuators 9 determine the frequency-independent weak coupling of microwave detectors 4 with a quadruple ferrite disconnecting elements 6, due to which the main part of the superhigh-frequency signal, reflected from the adjustable limiting attenuator 9, enters the third shoulder of the four shoulder laminator – curriculum ferrite uninterrupted from the adjustable limiting attenuator 9; element 6 attached to the corresponding shoulder of the investigated microwave multi-terminal 8. Reflected from the arm under study ultrahigh The frequency multiplex 8, the microwave signal returns to that four-shoulder ferrite dissociating element 6, to which the microwave energy is supplied through the microwave switch 7 and is directed to its fourth arm. elements, 6 in a wide dynamic range.

The low-frequency signal at the output of the microwave detector 4, connected to the second shoulder of the four-shoulder ferrite decoupling element 6, to which the microwave energy is supplied, is proportional to the power of the electromagnetic wave entering the studied shoulder of the microwave, detector 5, connected to the fourth shoulder of the shoulder strip, which is connected to the fourth shoulder of the shoulder strip, which is connected to the fourth shoulder of the four shoulder blanket, which is connected to the fourth shoulder of the four shoulder blanket, which is connected to the fourth shoulder of the four shoulder blanket, which is connected to the fourth shoulder of the four shoulder blanket, which is connected to the fourth shoulder of the four shoulder blanket , is proportional to the power of the wave reflected from the arm under study, and the signals taken from microwave detectors 5 connected to the fourth arms of the remaining four shoulder ferrite converters 6 are proportional to the power transmitted to the respective shoulders of the measured microwave multipole 8..

With microwave detectors in 4 and 5 low-frequency signals are fed to the low-frequency switch 11, which provides summing to the indicator 3 signals and poA otp

microwave detectors 4 and 5, respectively, connected to the second and fourth arms of the four-shoulder ferrite isolator Element 6, which has been connected to

About microwave energy, and signals (Jnpbui with over-high-frequency detectors 5, connected to the fourth shoulders; the other four-shoulder ferrite converters 6,

5 Indicator 3 provides observation and measurement of the frequency response jCCBH of the studied arm of the microwave multi-terminal 8, proportional to the frequency response of attenuation, proportional to the frequency dependence of Uiipouj, proportional to the frequency dependence of the ratio and g-f / and ps, d.

Calibration panoramic meter

 for a change in the VSWR, when 6 short-circuit breakers are connected to the third shoulders of four-shoulder ferrite unraveling elements, and for measuring the attenuation when the third shoulders are connected in pairs

 ferrite isolating elements 6 by equalizing the amplitudes of the signals otp Unpoiu and under by varying the length of the adjustable transducer attenuators 9 and 10.

5 To measure the attenuation values exceeding the dynamic range of the indicator 3, limited by the dynamic range of the microwave detectors 4 and 5, the following operations are performed.

After calibrating the panoramic meter on the indicator 3, the incident power monitoring mode is set. Increase the length of adjustable

: out of line attenuators 9 d and

: reducing attenuation introduced by attenuator 2, achieve the same until-4

indicator 3. In this case, the uniform measurement range increases

 N times. The value of N is determined by calculation by the magnitude of the LV and the geometric dimensions of the cross section, of the adjustable limiting attenuator 9. By decreasing the length of the adjustable limiting attenuators 10 by g6, the dynamic range of measurements is expanded by another N times.

0 Thus, the resulting expansion of the dynamic range is N times.

The measurement error of the VSWR on the panoramic meter does not exceed 1.5% when measuring the VSWR of 1.2.

Claims (1)

Claim A panoramic meter of the standing wave coefficient and attenuation of microwave multipole, containing a microwave oscillating frequency generator, the attenuator and indicator, as well as microwave detectors, respectively, are connected to the outputs of this oscillator, so that, in order to expand dynamic range and improve accuracy, introduced four-arm ferrite decoupling elements, the first shoulders of which through the introduced microwave. 'the switch is connected to the output of the attenuator, the third shoulders to the corresponding shoulders of the studied superhighlight and total multipole, and the corresponding microwave detector is connected to each of the second and fourth shoulders through the corresponding inputted 5th adjustable attenuator, while the outputs of the microwave detectors through the introduced low-frequency The switch is connected to the indicator.