Method of measurement of electromagnetic dispersion characteristics of hybrid slow-wave structure in the manufacturing process of plasma-beam microwave device and the device for its implementation

 

(57) Abstract:

Method of measurement of electromagnetic dispersion characteristics of hybrid slow-wave structure in the manufacturing process of plasma-beam microwave device includes forming a plasma in the passage channel of the segment studied slow-wave structure (OFS); introduction to SFL microwave oscillations with a frequency varying linearly; determining the resonance method the values of the resonant frequency response of phase raids in the segment SFL, within the operating range; the construction of the dispersion characteristics based on the received data, thus forming a plasma column in the span channels cut SFL and calibration of the resonator by the ignition of an electrical discharge in an isolated area, change the value of the discharge current and fix the position of the additional resonant response generated calibration resonator at a frequency whose value is determined from the above correlation. The device for implementing the method comprises a segment of SFL in the form of a periodic chain of resonators with a single span channel and input devices and output of the microwave oscillation, the microwave generator sweep, the indicator unit is s microwave oscillations in SFL, the device is also equipped with gas-discharge tube with a cathode and an anode, an adjustable current source discharge, calibration cavity with a passage channel and input devices and output of the microwave oscillation detectors passed or reflected wave of the microwave oscillations in the calibration cavity. The technical result consists in the possibility of obtaining high output parameters generated by beam-plasma microwave devices. 2 S. p. f-crystals, 5 Il.

The invention relates to microwave measurement techniques and can be used in electronic engineering when creating the plasma - beam microwave devices and hybrid slow-wave structures.

The basis for the design of any electron beam microwave device is a slow-wave structure (CS). It was her design, geometry and parameters largely determine the performance characteristics of the finished device. Why it is so important for optimal calculation, configuration, and manufacturing elements of CS.

Introduction to span the channel the AP is electron-beam microwave devices plasma concentration leads to a significant improvement of the parameters of the devices: expansion of the operating band of frequencies, the alignment of the amplitude-frequency characteristics, uvelicheniya, known as plasma - beam microwave devices (SPT microwave), is widespread.

It is known [1] that using electromagnetic dispersion characteristics of CS measured in the manufacturing process of the electron beam microwave device, it is possible to judge about such important parameters of the future instrument, as:

operation frequency range;

the phase velocity of the microwave oscillations, and hence the operating voltage electron guns;

the uniformity of the amplitude-frequency characteristics.

The presence of the plasma in the passage channel of the AP, which is realized only in the process of the SPT microwave, affects the properties of CS. It is therefore very important to evaluate and consider possible changes in the behavior of the electron beam when passing them span the channel the AP, which in this case is called a hybrid. For reliable estimation of the parameters of the SPT microwave it is in the process of making them, when not yet made the Assembly and sealing of the device, it is necessary to tune the LC resonators, for example, mechanically by changing the geometry of the elements of CS given the presence of plasma.

There is a method of measuring the dispersion characteristics of the slow-wave structure, which is us who subjugated the AP with the short end plates, made in the form of periodic system of resonators; determining the resonance method in the required range of values of the resonant frequencies of responses corresponding to a phase raids in the AP, which can be registered by the measuring unit, consisting of indicator resonance wavemeter and allocation indicator field, and to this end may be used oscillographic method of observing resonance curve; the construction of the dispersion characteristics based on the data obtained by the known methods.

The described method does not allow to measure the dispersion characteristics of the hybrid CS, as it ignores the effect of the plasma on these characteristics.

The closest in technical essence to the proposed method and selected as a prototype is a way of measuring the dispersion characteristics of CS, made in the form of a corrugated waveguide (HS), plasma-filled [3], consisting of two stages.

The first step is the calibration of plasma parameters in a smooth waveguide placed in a vacuum chamber and filled with the plasma pulse from the spark source. The result of calibration is depending the resonant responses, the position on the time axis depends on the plasma parameters in HS. To do this in a corrugated waveguide is placed in a vacuum chamber, is created by using the above special spark pulsed discharge plasma. At the same time in CS (HS) is the microwave oscillation whose frequency is fixed. Using standard measuring equipment connected to the input of humic substances, see resonant responses deployed in time. The position of the response time is determined by the plasma parameters and, respectively, the parameters of GW. Next, change the frequency of the microwave oscillation applied to the input of humic substances, and the measurement process is repeated for each newly prescribed frequency microwave oscillations. Thus get a series resonance curves for each frequency microwave oscillations in the x-axis which represents time and the ordinate is the intensity of the microwave oscillations. For the calculated and experimental data are constructed according to shift the frequency of each own fashion from the value of the plasma density, and then for this value of the concentration of plasma build the dispersion characteristic.

The disadvantages of this method are its complexity and large error. This is because the measurement is the third of its power, and complex vacuum equipment. In addition, the measurement variance is based on the experimental dependences of the concentration of plasma from time to time. The plasma parameters are reproduced with a large variation in the measurement process, because it uses a pulsed spark plasma source, which leads to large measurement errors. Describes the measurement process requires a large number of experiments and time-consuming processing of their results. The greatest inaccuracy in the measurement of the dispersion contribute to the variation of plasma parameters from measurement to measurement and its dependence of concentration on the longitudinal coordinate. A large error in determining the dispersion characteristics of hybrid CS gives a biased estimate of the parameters of the created SPT, which eventually leads to the deterioration of the output parameters of the plasma-beam microwave devices.

Known measuring system [3] to determine the dispersion characteristics of the slow-wave structure with a plasma-filled, containing the device for calibration of plasma parameters and directly measuring device.

In the calibration device in the vacuum chamber to the pumping system and control the pressure placed smooth waveguide designed for kalibwani installed probe, connected to the indicator unit (e.g., oscilloscope).

In the case of the measuring device in the above vacuum chamber placed investigated slow-wave structure designed in the form of a corrugated waveguide (GW), with the above impulse spark-plasma source. Additionally, HS input is the device I / o microwave oscillations, which through the main channel of the directional coupler is connected with a generator of microwave oscillations, and through an additional channel in the same tap for output reflected from the GW wavelength, and is located in the channel detector of microwave oscillations connected to meter a specific unit (e.g., oscilloscope).

The disadvantages of the described measuring system are:

the necessity of a vacuum chamber with vacuum equipment, which complicates the measurement process and increases the size of the device;

high variation of parameters of the plasma produced spark plasma source, from pulse to pulse;

irregular dependence of plasma parameters from pulse to pulse;

spatial heterogeneity of plasma parameters generated by spark source.

Listed is not the P> The closest to the most common features to the proposed device is a device for measuring the dispersion characteristics of CS [2], comprising: a fragment of the studied slow-wave structure, made in the form of a system of resonators with a single span of the channel, with the short end plates and input devices and output of the microwave oscillation; microwave generator sweep; a display block comprising, for example, of the wavemeter and indicator resonance or oscilloscope. Thus the output of the microwave generator through the main waveguide channel of the directional coupler of the incident wave is connected to the input device of the microwave oscillations in the AP and via the auxiliary channel above the tap next to the entrance of the incident wave of the display unit (for example, wavemeter or the respective input of the oscilloscope), and the output of the microwave oscillation through the waveguide channel and placed in it the detector of microwave oscillations are connected with the input of the display unit (for example, indicator resonance or the respective input of the oscilloscope).

This device does not allow for measurement and configuration electrodynamic CS plasma-filled passage channel.

In the foundations of the large number of experiments, labor-intensive processing of their results and sophisticated equipment, measurement of electromagnetic dispersion characteristics of the AP plasma-filled (hybrid CS) in the manufacturing process of plasma-beam microwave devices of all types.

The present invention relates to a method and device for measuring the dispersion characteristics of hybrid CS in the process of manufacturing the SPT microwave.

The technical effect of using the proposed solution is the possibility of obtaining high output parameters generated by beam-plasma microwave devices.

The problem is solved by the fact that in the method of measurement of electromagnetic dispersion characteristics of hybrid slow-wave structure in the manufacturing process of plasma-beam microwave device, including the formation of plasma in the passage channel of the segment studied slow-wave structure, the introduction of slow-wave structure of microwave oscillations with the frequency changing linearly, determining the resonance method the values of the resonant frequency response of phase raids in the interval of slow-wave structure within the operating range, the construction of the dispersion characteristics based on the received data, the General by the ignition of an electrical discharge in an isolated area, change the value of the discharge current and fix the position of the additional resonant response generated calibration resonator at a frequency whose value is determined from the ratio

< / BR>
where n is the plasma density in the calibration cavity, averaged over the plasma volume;

nwithcritical concentration for frequencies fq,

< / BR>
m, e, respectively, the mass and charge of the electron;

fqfnaccordingly the resonance frequency calibration of the resonator without plasma and plasma;

- the ratio of the employed plasma volume calibration resonator Vpthe total volume of the calibration resonator Vq,

in the range that is outside the working range in this register correspond to the position values of the resonant frequencies of responses in the operating range.

The method is implemented using a device containing a segment of the studied slow-wave structure in the form of a periodic chain of resonators with a single span channel and input devices and output of the microwave oscillation, the microwave generator sweep, indicator unit meter VSWR and attenuation, detector incident wave microwave oscillations and the detector past isodine with the input device of the microwave oscillations slow-wave structure and through the detector of the incident wave microwave oscillations - with the entrance of "falling" of the display unit, and the output of the microwave oscillation slow-wave structure through the detector passed or reflected wave of the microwave oscillations in slow-wave structure with a sign "flipped" display unit, which is equipped with gas discharge tube with a cathode and an anode, an adjustable current source discharge, calibration cavity with a passage channel and input devices and output of the microwave oscillation detector passed or reflected wave of the microwave oscillations in the calibration cavity, with gas discharge tube, the anode and cathode which are separated from each other by a distance, exceeding the total length of the span channels cut slow-wave structure and calibration of the resonator, and is connected to the appropriate pins of the adjustable current source discharge, placed coaxially in the span channels cut slow-wave structure and calibration of the resonator, which are located along the discharge tube between the anode and cathode, and an input device of the microwave oscillation calibration of the resonator connected to the output of the microwave generator sweep, and the output of the microwave oscillation calibration of the resonator through the detector passed or reflected wave of the microwave oscillations of the forehead plasma simultaneously in-flight channels cut investigated slow-wave structure (CS) and the calibration of the resonator (CR) by ignition controlled electric discharge in an isolated area provides:

the creation of stationary electrical gas discharge with a uniform distribution of plasma parameters along the axes of the respective passage channels;

easy adjustment of the plasma parameters in the above channels;

the ability to control the plasma density in the measurement of dispersive properties of the studied CS, which simplifies the measurement method, improves the reliability and accuracy of measurement.

In the proposed device is implemented by placing a sealed gas discharge tube, the anode and cathode which are separated from each other by a distance greater than the total length of the span channels cut CS and CR, and is connected to an adjustable current source discharge in coaxial passage channels of CS and CU along the discharge tube between its anode and cathode. Joint location CS and CU along the tube provides a simple measuring device. The choice of the additional frequency response formed of CU, outside the working range provides simultaneous and accurate measurement of the working of the plasma density and dispersion characteristics of CS with high accuracy. This is implemented in the device selection geometric paro frequency position response from the CU to the working range of the AP reduces the error in the determination of the resonant frequency response while observing the screen of the display unit responses from CR and CS.

Comparative analysis of the proposed measuring method and device for its implementation with the prior art and are not described similar technical solutions to known sources of information allows to make a conclusion on compliance with the criterion of "novelty". The claimed measuring method and device for its implementation are characterized by a set of signs showing new quality, which allows to conclude that the criterion of "inventive step".

The present invention can be better understood if we turn to the following detailed description of an example implementation of the proposals under consideration in conjunction with the drawings, which show: Fig. 1 is a diagram of a measuring device for implementing the proposed method of measurement of electromagnetic dispersion characteristics of hybrid slow-wave structure in the manufacturing process of the SPT microwave by examining the attenuation of microwave oscillations, Fig. 2 - scheme of the measuring device, based on the measurement of the reflected wave of the microwave oscillations, Fig. 3 is a view of a resonant response from the calibration of the cavity for different values of the plasma density; Fig. 4 resonance characteristics of the layout issleduemuyu with plasma and without it.

The measuring device shown in Fig. 1, consists of: cut investigated slow-wave structure (CS) 1 in the form of a periodic chain of resonators (4-12 resonators), which determines the reliability of the structure of the dispersion characteristics of the AP 1, with a single span channel and input 2 and output 3 of the microwave oscillations; placed coaxially with the AP 1 of the calibration of the resonator (CR) 4 with an axial passage channel and input devices 5 and pin 6 of the microwave oscillations; gas-discharge plasma source in the form of a gas discharge tube (GT) 7 with a diameter corresponding to the diameter of the passage channel CS 1, and filled with inert gas with a pressure of 0.1-10-3mm RT.art., the anode 8 and cathode 9 which are separated from each other by a distance greater than the total length of the span of the CS channels 1 and KR 4, and are connected respectively with an adjustable power source (in this case an adjustable current source discharge) RIP 10, with GT 7 is placed coaxially in the span channels CS 1 and KR 4 so that they were located along the GT 7 and covered her between the anode 8 and cathode 9; microwave generator sweep (GCC) 11 and the display unit (IB) 12 meter VSWR and attenuation the yield GCC 11 is connected with input devices microwave kalvoda microwave oscillations 3 and 6, respectively, CS 1 and KR 4 are connected through the respective detectors of the last wave of the microwave oscillations 14 and 15 to the input of a "flipped" IB 12. In addition, in the circuit of the measuring device of Fig. 1 depicts taps directed 16, 17, 18 and load concerted 19, 20, which are the distinguishing characteristics of the proposed device, but are shown to illustrate a specific example of the communication nodes in the design: so through the main channel of the coupler 16 output GCC 11 is connected to input devices of the microwave oscillations 2 and 5, respectively, CS 1 and KR 4, and through an additional channel of the coupler 16 and placed in it the detector 13 is input leaning IB 12; additional channels taps 17 and 18 located through them in the detectors 14 and 15 connected respectively to the output device 3 and 6 CS 1 and KR 4 to the input of a "flipped" 12 IB, and their main channels connected to the consistent loads 19 and 20 respectively.

The circuit of the measuring device of Fig. 1 implements the proposed method of measurement by examining the attenuation of microwave oscillations in the AP 1 and 4 CR. Possible measurement of electrodynamic dispersion characteristics using the measuring device shown in Fig. 2, by examining VSWR CS 1 and 4 CR.

In this case, the reflected waves of the microwave oscillations of the resonator structures CS 1 and KR 4 measuring device (Ceres corresponding reflected wave detector 23 or 24 is connected to the input of a "flipped" IB 12. In order to specify the relationship of the structural elements in Fig. 2 shows the directional couplers 25 and 26. In this measuring station device I / o 21 CS 1 is connected with the output GCC 11 through the main channels of taps 25 and 16, and through an additional channel of the coupler 25 and placed in it the reflected wave detector 23 with the input "flipped" IB 12. The device I / o 22 CU 4 through the main channel taps 26 and 16 is connected with the output GCC 11, and through an additional channel of the coupler 26 and placed in it the detector of the reflected wave 24 - input "flipped" IB 12.

The proposed method of measuring the dispersion characteristics of the hybrid slow-wave structure can be illustrated by a specific example of implementation depicted above in Fig. 1.

Pre will examine the process of measuring the concentration of plasma and selecting calibration of the resonator. Since the plasma is placed inside the resonator, the transverse dimensions of the plasma is limited to the relevant dimensions of the resonator. The introduction of plasma into the cavity that is configured in response to one of the natural frequencies, leads to a change in the resonance frequency. Smartaudio conductivity of the plasma and, therefore, the concentration and collision frequency of electrons. A necessary condition of justice perturbation theory is the relative smallness of the circular shift of the resonance frequency

qq(1)

In most experiments resonator method was used when the communication characteristics of the resonator conductivity of the plasma can be considered as linear, i.e., the relation is valid: (1) obtained in the first approximation of perturbation theory. For the case when a constant magnetic field is missing or does not affect the measurement, the expression is cast to mind

< / BR>
where n is the plasma density in the resonator, the value of which is averaged over the plasma volume;

Vq- the total volume of the resonator;

Vp- the volume of the cavity occupied by the plasma;

CVthe shape factor is determined by the distribution of the field and plasma parameters on the volume of the resonator;

nccritical concentration for frequenciesq,

< / BR>
The maximum value of the electron density, which can be used resonator method, is determined by the boundaries of applicability of the linear correlation of the perturbation theory (1). This limit depends on the field distribution in the cavity and is 0.1 to 10nc. The above formulas are applicable, if the frequency of collisions is significantly less than the frequency of the field. If these frequencies are comparable, it is necessary to use the formula

< / BR>
where is the frequency of collisions.

In this case, to determine the concentration of electrons in the resonance frequency shift is necessary to know the frequency of collisions of electrons.

To study the plasma in the proposed technical solution used cylindrical resonators, since in the experiment the plasma has a cylindrical symmetry. As a working type of oscillation adopted E010. The radius of the calibration of the resonator lot more height Rq>>hqand radius Rqthis calibration of the resonator is determined from the condition

max+ < 3,405 Rqor 3,405 Rq<min, (4)

where

< / BR>
c - light speed;

- frequency oscillations;

max,minrespectively the upper and lower wavelengths of the operating range of the hybrid CS.

Failure to do so leads to a false pulse, which leads to errors in the identification of resonance frequencies of responses.

For this type of resonator, provided that the plasma is small rmy CV= 4.0 so after transformation and taking into account that = 2f:

< / BR>
and

< / BR>
where fqfnaccordingly, the resonance frequency of the calibration of the resonator without plasma and plasma;

the ratio of the volume calibration of the cavity occupied by the plasma, the total volume of the resonator.

Including gas-discharge plasma source 7 and changing with stabilized current source RIP 10 the plasma density in the discharge tube 7 can be observed shift of the resonance frequency calibration resonator system 4 in connection with the introduction of its plasma with varying concentrations (see Fig. 3).

The main characteristic of periodic CS - dispersion curves, which relate the phase speed of harmonics with frequency. In the study of the dispersion characteristics of the LC type CSR (chain linked resonators) plasma-filled it is assumed that the geometrical dimensions of the system are specified and unchanging. Dispersion curves may be conveniently presented in the form f= F Vphasesor f=F(kzD), where Vphases- the phase velocity of the waves in the hybrid CS D - CS period, kz- longitudinal wave number in the AP.

The layout of the LC type CSR is a more recent who's modes of vibration in all diafragmirovanija waveguide with slots communication. Measurements of the resonance method. The short distance between trailing ends of the segment studied hybrid CS should be chosen from the boundary conditions for a standing wave so that the cut length LC fit an integer number of half-waves

L= n/2, (7)

where n = 1,2..., L = mD - length CS D - period of the structure;

- wavelength of the microwave oscillations in the AP;

m is the number of resonators in the layout CS.

For example, if m = 4 in the resonator can be excited only types of oscillations corresponding to n = 0,1,2,3,4, i.e. 0, /4, /2, 3/4, - type. If the number of resonators to increase, for example, up to eight, we can distinguish nine types of oscillations: 0, /8, /4, 3/8, /2, 5/8, 3/4, 7/8, . The structure of electromagnetic field in the resonator at frequencies corresponding to different types of oscillations, will be different. When removing the dispersion according to important to choose the right dimensions of the exciting and receiving loops of input devices and output of the microwave oscillation, associated respectively with the microwave generator and the indicator unit. So, in our case, the number of observed resonances exactly equal to N - the number of periods of the layout of the hybrid CS, and the lowest value of the resonance frequency corresponds to the oscillation of the form /N, and the highest - oscillation type . The layout of stagepiano immersion and orientation of excitatory and receiver loops of input devices and output of the microwave oscillation can be adjusted continuously with the help of micrometer screws.

Describe a specific measurement process using the setup in Fig. 1. Previously for the frequency range of the investigated segment of the CS condition (4), choose a value of Rqfor 4 CR. Then, on the basis of the analysis and mathematical modelling, set the desired value of the plasma density and on the basis of relation (5) is determined by the value of the frequency at which the formed resonant response 4 CR.

To measure the dispersion characteristics of the plasma - filled (hybrid) CS offer the resonance method is used, the layout of the investigated hybrid CS type 1 chain connected resonators, which represents several (usually four to twelve) consecutive resonators connected Windows connection. In providing a single and simple measuring cycle definition resonator method of the plasma density in the layout of the hybrid CS and measuring the dispersion characteristics of hybrid CS in the amount of structurally unchanged measuring installation place the sealed discharge tube GT 7 coaxial in-flight channels CS 1 and KR 4 along the tube between the anode 8 and cathode 9, using RIP 10 light discharge, forming a uniform plasma column in p is less than 0.5%, the ends can be considered as short-circuited. When submitting using the input device 2 in the layout of the AP 1 of the microwave oscillations from the standard generator sweep (GCC) 11 in the AP 1 sequentially excited oscillations corresponding to the setting mode of the standing wave. A typical set of resonances is determined by the bandwidth of the AP 1 and the number of resonators that are installed in the layout. Identifying the frequency of each resonance, determine the point of the dispersion characteristics of hybrid CS 1, the corresponding steady-state mean of the fluctuations in the system. At the same time the microwave oscillations from the above GCC 11 through the input device 5 serves in CR 4. Using a current source RIP 10 is set to the resonant frequency of CR 4, which corresponds to the desired concentration of plasma and selected from the relation (5). The resonant frequency fq, unperturbed KR (fq= 0.383 c/Rqwhere c is the speed of light, a Rq- radius KR 4) selected outside the working range of the AP 1. When you enable GCC 11 signal SHF oscillations served on excitatory loop input device 2 and 5 CS 1 and KR 4, respectively, and through an additional channel of the directional coupler 16 and the detector of the incident wave 13 of the signal is input to the "global channels taps 17 and 18 with the detectors 14 and 15 in them is input to a "flipped" IB 12, at the same time on the screen of the display unit 12 IB observed a characteristic pattern of resonant responses of CS 1 and additional resonant response CR 4 (see Fig. 4). A typical set of resonances is determined by the bandwidth of the AP 1 and the number of resonators that are installed in the layout. The experiments were established 4, 6, 9 cavities. Identifying the frequency of each resonance with the corresponding steady-state mode of oscillation in the system, in this case, for the four resonators, respectively, /4, /2, 3/4, -, it is possible to determine the corresponding point of the dispersion characteristics.

The filling of the transit channel plasma causes a shift in the bandwidth CS 1 to higher frequencies, which corresponds to theoretical concepts in the analysis of this hybrid CS 1. Simultaneously with additional resonant response from CR 4 is measured and monitored is working concentration of plasma. On the basis of measurements used to construct the dispersion of hybrid CS type CSR at concentrations of plasma 0.51011cm-3(Fig. 5).

Thus, for the first time implemented the methodology of the study the dispersion properties of hybrid slow-wave systems CSR using offline Gator is of the microwave characteristics of developing a powerful beam-plasma amplifiers (PUF) and microwave generators taking into account the influence of plasma filling of the transit channel, the process of manufacturing the hybrid foam is proposed to organize as follows: at the first stage on the basis of technical specifications with the help of mathematical modeling of pre-defined geometric dimensions LC and plasma concentrations; then made layout CS and using the above method at an operating value of the plasma density is measured by its dispersion characteristic which is compared with the specification; if necessary, the measurements are repeated at several values of plasma concentration of the working range and adjustments are made to calculation and design documentation. So is the choice of the optimal concentration of the plasma in the working mode polyurethane foam, which optimizes the process of configuring the AP for PPU and, ultimately, improves performance manufactured samples of foam.

Used books

1. "Electromagnetic retarding system", "Study of slow-wave system with contactless plates", Barongis, M., 1960, pp. 43-57.

2. Lebedev, I. C. "Technology and microwave devices", ed. "High school", Moscow, 1970, pp. 410-414.

3. A. Shkvarunets et al. "Plasma influence on the dispersion properties of finitelength, corrugated waveguides", Physical Review, V patterns in the manufacturing process of plasma-beam microwave device, including the formation of plasma in the passage channel of the segment studied slow-wave structure, the introduction of slow-wave structure of microwave oscillations with the frequency changing linearly, determining the resonance method the values of the resonant frequency response of phase raids in the interval of slow-wave structure within the operating range, the construction of the dispersion characteristics based on the received data, wherein forming the plasma column in the span channels cut investigated slow-wave structure and calibration of the resonator by the ignition of an electrical discharge in an isolated area, change the value of the discharge current and fix the position of the additional resonant response generated calibration resonator, frequency, the value of which is determined from the ratio

< / BR>
where n is the plasma density in the calibration cavity, averaged over the plasma volume;

nccritical concentration for frequencies fq< / BR>
< / BR>
m, e, respectively, the mass and charge of the electron;

fqfnaccordingly the resonance frequency calibration of the resonator without plasma and plasma;

- the ratio of the employed plasma volume calimesa outside the operating range, when this register corresponding to the ratio of the frequencies of the resonant responses within the operating range.

2. Device for measuring electromagnetic dispersion characteristics of hybrid slow-wave structure in the manufacturing process of plasma-beam microwave device containing the segment studied slow-wave structure in the form of a periodic chain of resonators with a single span channel and input devices and output of the microwave oscillation, the microwave generator sweep, indicator unit meter VSWR and attenuation, detector incident wave microwave oscillations and the detector is passed or reflected wave of the microwave oscillations in slow-wave structure, thus the output of the microwave generator sweep is connected to the input device of the microwave oscillations slow-wave structure and through the detector of the incident wave microwave oscillations with the sign "falling" of the display unit, and the output of the microwave oscillation slow-wave structure through the detector passed or reflected wave of the microwave oscillations in slow-wave structure to the input of a "flipped" display unit, characterized in that the device is equipped with a gas discharge tube with a cathode and an anode, an adjustable current source discharge, calibration Rezo is the wave of the microwave oscillations in the calibration cavity, when this gas discharge tube, the anode and cathode which are separated from each other by a distance greater than the total length of the span channels cut slow-wave structure and calibration of the resonator, and is connected to the appropriate pins of the adjustable current source discharge, placed coaxially in the span channels cut slow-wave structure and calibration of the resonator, which are located along the discharge tube between the anode and cathode, and an input device of the microwave oscillation calibration of the resonator connected to the output of the microwave generator sweep, and the output of the microwave oscillation calibration of the resonator through the detector passed or reflected wave of the microwave oscillations in the calibration resonator is connected to the input of a "flipped" of the display unit.

 

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