Mnohopocetny open resonator
(57) Abstract:Use: engineering of millimeter and submillimeter ranges. The inventive mnogodolny open cavity contains a first mirror with a generatrix in the form of a system defocusing ellipses and a second mirror with a straight generatrix passing through the foci of the first mirror. The first and second mirrors are made in the form of bodies of rotation around the first and second axes oriented parallel to a rectilinear generatrix profile of the second mirror and located each side opposite the mirror outside the volume enclosed between the first and second mirrors. At the ends of the mirrors installed additional mirror elements, the phase center of which is aligned with the nearest focus of the first mirror and the surface formed by the rotation of their forming around the first axis. 3 C.p. f-crystals, 4 Il. The invention relates to the field of microwave engineering of millimeter and submillimeter wavelengths, namely resonant systems microwave ranges, and is intended primarily for use in the generator-amplifier devices that use quasi-resonant system.In the development of some quasi) mnogotochechnymi systems with cascading focusing of microwave energy in local zones of resonance volume - wave tricks of the PR. The presence of such zones can accommodate in-phase resonant field of high intensity, several nonlinear elements and to carry out, for example, in the diffraction radiation generator (GDI) and quasi-optical semiconductor generators resonant sum capacity of multiple microwave sources, which increases the power output of the device as a whole. However, a further increase in output power of such devices is limited by the disadvantages of their PR, having no more than two or three focal zones, which can be placed nonlinear elements. Other known mnogofotonnye patterns have a sufficient number of wave tricks, but do not have the necessary quality. No structures mnogofotonnykh EOS, in which the possible excitation of sustainable good vibrations with a large number of wave tricks, hinders the development of generator devices with high output power. Therefore, the establishment of mnogofotonnykh resonance structures for the generator-amplifier device of the microwave range is an important task which will accelerate the development and creation of new microwave devices, important for the national economy.Famous outdoor PE the two defocusing ellipses and flat mirror. The disadvantage of this EO is the reduction of the quality factor and the deterioration of the resonance properties when the number of wave foci .Closest to the technical essence and the achieved positive effect to the proposed technical solution is mnogopolnoe quasi-optical device formed by the system defocusing elliptical mirrors and flat - mi mirrors, placed at the foci of the elliptical. In this structure ensures that the concentration phase field of the microwave in a large number of wave focal zones in the propagation of energy along the structure in the forward direction from the focus of the source-to-focus receiver. However, using this structure as a resonance is significantly complicated by the fact that it cannot be repeated cyclic crawls wave (radial) flow stable spatial trajectories passing through the same kind of tricks structure, but in reverse order. It is known that this requirement is necessary for the formation of stable solid oscillations in quasi-resonant structures, as the waves corresponding to the rays, repeatedly synthesis cycle, have enough directory analysis of the process of propagation of rays in mnogofotonnoi the structure of the prototype suggests, after its direct passage with a consistent focus in each peripheral focus of the elliptical mirror forms a reverse energy flow, converging don't end peripheral its focus, and in the interior, previous peripheral (as similar). Since the sizes of all internal elliptical mirrors in the propagation direction does not exceed the focal length 2A (and is the semimajor axis, eccentricity), the angles of arrival in this internal focus "reverse" of the rays relative to the line connecting the foci patterns are such that after reflection from which the focus of flat mirrors of "reverse" rays fall on the inner surface of the elliptical mirror, which this focus does not belong. So subsequent reflections "backward" radiation flows do not converge periodically in each of the focus structure of the prototype, as in case of direct distribution, common in the direction of focus of the source becomes chaotic in nature and occurs along paths that do not contain points of foci patterns and does not substantially coincide with the trajectories of direct distribution. For this reason, in such structures, with a number of tricks p > 3 energy obratny waves does not occur, because of what decreases the quality factor of the oscillations with the wave tricks, relevant geometric tricks structure.The aim of the invention is to improve the quality mnogofotonnoi quasi-optical structure.This is achieved by the fact that in Mnogotochie open cavity containing a first mirror with a profile in the form of a system defocusing ellipses and a second mirror with a straight profile, passing through the foci of the first mirror, the mirror is made with surfaces of the rotation profiles respectively around first and second axes oriented parallel to the generatrix of the second mirror and passing each side opposite the mirror outside the scope of the resonator, and at the ends of the latter, outside misfocusing areas, the additional mirror elements with profiles with phase centers. When this surface is introduced mirror elements formed by the rotation of their profiles around the first axis, and themselves, these elements are mounted so that the phase center of each profile combined with its nearest peripheral focus of the profile of the first mirror.In Mnogotochie open resonator, at least one more is him and perpendicular to the generatrix of the profile of the second mirror.In addition, at least one additional mirror elements can be made with a profile of an arc of a circle whose center is aligned with the nearest peripheral focus of the first mirror.For the implementation of frequency tuning one of the additional mirror elements or its part can be mounted for movement along a generatrix of the profile of the second mirror.Comparative analysis of the prototype and similar shows that the proposed device has new features that build a sustainable good vibrations with a large number of wave tricks. Therefore, it meets the criteria of the invention of "novelty."Analysis of patent and scientific and technical sources indicates that the distinctive features of the proposed technical solution is not known, indicating its compliance with the criterion of "Significant differences".In Fig.1-3 depict p-focal PR (p=1,2,3,...), with an additional mirror elements elliptical and linear profile of Fig.4 - 5 - focal PR (p= 5) with an additional mirror elements circular profile.Direct ray paths (to the left of naprorochili, closed in focus-the source of f1indicated by double arrows.Mnohopocetny open cavity contains the first mirror 1 profile 2 in the form of a system defocusing ellipses and the second mirror 3 profile 4 in the form of a straight line passing through the foci of the mirror 1. Mirrors 1,3 made with surfaces of the rotation profiles 2, 4 around the respective axes 010'1and 020'2oriented parallel to the generatrix of the profile 4 mirror 3, with both axes are outside the scope of the resonator: the axis 010'1- side mirror 3, and the axis 020'2- side mirror 1. Typical cross-section of the resonator in planes perpendicular to the axes of rotation, shown in Fig.1-3. At the ends of the resonator, outside mezhduvagonnyh areas f1...fpintroduced additional mirror elements 5 profiles 6 with phase centers. The surface of the additional mirror elements 5 are made in the shape of the rotation profiles 6 around the axis 010'1mirror 1, and do additional mirror elements 5 are set so that the phase center of each combined with its nearest peripheral focus f1or fpprofile 2 mirrors 1.Dopolnitelnye this ellipse and perpendicular to the generatrix of the profile 4 mirror 3 (see Fig.1-3). In addition, the mirror elements 5 can be done with profiles 6 in the form of an arc of a circle (see Fig.4), the center of curvature (phase center) which is combined with a peripheral focus of the profile 2 mirrors 1. You can also use structurally different additional mirror elements 5 in one Mnogotochie OP.One or both of the additional mirror element 5 can be mounted for movement in the direction of the generatrix of the profile 4 mirrors 3.Works proposed mnohopocetny the PR as follows. Diverging from the focus of the source of f1the flow of wave energy hits the surface of the mirror 1. One of the beams diverging flow out of focus at some initial angle1nthe profile 4 mirror 3, passes all mnogopikselnoy structure from left to right, sequentially reflected at the points of foci fi(i = 1,2,..., R-1, R) from the mirror 3, because every time he reflected the elliptical portion of the surface of the mirror 1, the focus of which he came. After reflecting mirror 3 in the peripheral focus fpmirror 1 beam hits the surface of the right mirror element 5, the phase center of the profile 6 which are aligned with Penta beam changes the direction of propagation in the structure on the back so, which again falls into the same peripheral focus fpmirror 1, because it combined the phase center for the mirror element 5. After reflection from the mirror 3 in the focus fpthe return beam falls on the peripheral surface of the elliptic section of the mirror 1, which belongs to the focus fp. This elliptical section of the beam is reflected in the focus fp-1on the surface of the mirror 3, and then, alternately reflected from the elliptical mirror surfaces 1 and tricks on the surface of the mirror 3, the beam in the reverse sequence passes all the tricks mnogofotonnoi patterns. After reflection from the mirror 3 in the focus point f1the beam hits the surface of the left additional mirror element 5, the phase center of which is aligned with the left peripheral focus f1mirror 1. Similarly, the right-left mirror element 5 changes the propagation direction of the beam so that it again passes through its phase center - focus f1mirror 1, and the angle1tojoining him in the point f1is associated with an initial angle1nexit it from the same point at the beginning of the cycle ratio1to= 180about-1n(justice the C point f1corresponding to the beginning of the second cycle traversal patterns, occurs at an angle2n=1nand for an arbitrary number n of cycles of crawling identity n+1n=nn.Thus, the cyclic path of each beam geocentricism beam characterizing the pattern (DN) of the excitation source, samovosproizvoditsja in each cyclic traversal mnogofotonnoi patterns of this type, which gives it stability and provides a concentration of wave energy in all its tricks. Multiple rounds of such structure on the stable spatial trajectories and provides multiple interference wave flows on significant parts of the spatial-developed circular trajectory that determines the increase of the quality factor of the structure and thereby the possibility of using it as a resonance with a large number of wave tricks. The reduction of losses in the plane perpendicular to the plane of the profile mirror 1, is provided by the introduction in this direction quadratic phase correction by performing surface mirrors 1.3 in the form of rotation about their respective axes located on the profile of the ellipse and straight, combined with its minor axis and perpendicular to the line of profile 4 mirror 3 (see Fig.1-3) reflected elliptical surface element 5, the beam moves to its second focus (right cross). His coming in this focus prevents the mirror 7, straight profile, part of the General profile 6 additional mirror element 5, is aligned with the minor axis of the elliptical part of the profile of the element 5. Since the minor axis of the ellipse has its axis of mirror symmetry, then reflected by the mirror 7, the beam comes to the internal focus of the elliptical arc element 5 - phase cents last, combined with peripheral focus fpmnogofotonnoi patterns. After reflection from the mirror 3 in the focus fpray in reverse sequence passes all the tricks of the structure. Similarly, there are multiple reflections of the beam at the end of the cycle on the left additional mirror element 5.When performing additional mirror elements (or at least one of them) with a profile in the form of an arc of a circle (see Fig.2), the center of curvature of which (phase center) combined with peripheral focus mnogofotonnoi patterns which, for example, from the focus f5the beam is reflected by the surface of the right element 5 is on the opposite trajectory, coinciding with a straight trajectory, falls on the surface of the left mirror element 5, which similarly changes the propagation direction and comes into focus is the source of f1. The second and all subsequent cycles of reflections of the beam also occur along paths that coincide spatially with the trajectory of the first cycle, since the conditionn+1n=nn. Therefore, in Mnogotochie HOR, in which additional mirror elements have a profile of an arc of a circle, formed good vibrations with wave tricks all geometric points of structure.Frequency adjustment in the proposed Mnogotochie'OR, in addition to the known method of changing the distance between the mirrors 1 and 3, may also be moving additional mirror element or part in the direction of the generatrix of the profile 4 mirrors 3, because this changes the length of the circular trajectory. For option PR Fig.1 frequency tuning should be performed by the moving mirror 7 relative to the elliptic part of the element 5, as the latter is technologically easier to make simultaneously with elliptical mirror surfaces 1.1. MNOHOPOCETNY OPEN CAVITY containing a first mirror with a generatrix in the form of a system defocusing ellipses and a second mirror with a straight generatrix passing through the foci of the first mirror, wherein, to improve the figure of merit, first and second mirrors are made in the form of bodies of rotation around the first and second axes oriented parallel to a rectilinear generatrix profile of the second mirror and located each side opposite the mirror outside the volume enclosed between the first and second mirrors, and to the ends of the mirrors installed additional mirror elements, the phase center of which is aligned with the nearest focus of the first mirror, and the surface formed by the rotation of their forming around the first axis.2. The resonator under item 1, characterized in that at least one of the additional pendicular generatrix of the second mirror.3. The resonator under item 1, characterized in that at least one additional mirror elements has a generatrix in the form of an arc of a circle, the center of curvature of which is combined with the nearest to it is the focus of the first mirror.4. The resonator on the PP.1 to 3, characterized in that order of frequency adjustment, at least one additional mirror elements or a part mounted for movement along a rectilinear generatrix of the second mirror.
FIELD: microwave engineering; high-power broadband multibeam devices such as klystrons.
SUBSTANCE: proposed O-type device has two multibeam floating-drift tubes in each active resonator with operating wave mode H201, diameter D of each tube being chosen from condition D = (0.4 0.45)λ, where λ is wavelength corresponding to center frequency of device operating band. Input and output active resonators with floating-drift tubes asymmetrically disposed relative to opposite walls of these resonators are proposed for use. Input active resonator can be connected to energy input directly or through input waveguide, or through input passive resonator and input waveguide. Output active resonator can be connected to energy output through one output passive resonator and output waveguide or through two output passive resonators and input waveguide. Two multibeam floating-drift tubes are disposed in each active resonator including intermediate ones.
EFFECT: enhanced output power, efficiency, and practical feasibility, simplified design, facilitated manufacture, assembly, and adjustment of device.
11 cl, 4 dwg
SUBSTANCE: invention is related to electronic microwave equipment, namely to powerful wide band microwave devices of O-type, for instance, to multiple-beam klystrons that mostly operate in medium and short-wave part of centimeter range of waves length. Microwave device of O-type consists of sequentially installed along its axis electron gun, active resonators in the form of wave conductors segment and collector. Active resonators are made as stepwise changing in height, where height is the distance along microwave device axis between end walls of active resonator. In active resonator floating-drift tubes are installed linearly in rows and are fixed in its opposite end walls, and ends of coaxially installed floating-drift tubes are separated by permanent high-frequency gap. Central rows of floating-drift tubes are installed in sections of active resonators with the least height, and subsequent rows of floating-drift tubes that are installed along both sides of central rows, are installed in sections of active resonators with higher heights. It is also suggested to use inlet and outlet active resonator with non-symmetric installation of floating-drift tubes relative to opposite side walls of these resonators. Inlet active resonator may be connected to energy input directly through inlet wave conductor or through inlet passive resonator and inlet wave conductor. Outlet active resonator may be connected with energy output directly through outlet wave conductor or through one or several outlet passive resonators and outlet wave conductor.
EFFECT: increase of efficiency factor at the account of improvement of electric field distribution uniformity in the sphere of electronic flow interaction with microwave field.
12 cl, 5 dwg
SUBSTANCE: invention concerns electric vacuum ultra high frequency (UHF) instruments, particularly construction of O-type traveling wave lamp with magnetic periodic focusing system (MPFS). Lamp includes MPFS combined with resonance slow-down system and consisting of intermittent axially magnetised ring magnets, polar headpieces with ferromagnetic hubs and non-magnetic diaphragms with capacitance bushings, positioned between them and forming transit channel. At least a part of MPFS behind high frequency power input includes ferromagnetic insert forming slow-down system resonators together with adjoining polar heads. Another resonator part is formed by diaphragm in the form of step rotation body, and annular element fixating the insert in diaphragm. Diaphragms and annular elements are made of non-magnetic material with high heat conductivity. Selection of ferromagnetic insert profile, size and position between polar heads defines magnetic field with given high harmonic components and non-sinusoid distribution.
EFFECT: enhanced current permission of beam in high-performance traveling wave lamp in short-wave part of UHF range due to intense electron stream focusing in transit channel of traveling wave lamp with low pulsation.
3 cl, 8 dwg
SUBSTANCE: invention concerns electric vacuum ultra high frequency devices, particularly in O-type traveling wave lamp with magnetic periodic focusing system (MPFS). Lamp includes MPFS combined with resonance slow-down system and consisting of intermittent axially magnetised ring magnets, polar headpieces and ferromagnetic inserts. To achieve required harmonic component level in magnetic field with non-sinusoid distribution, at least a part of MPFS behind high frequency power input consists of adjoining cells, each including at least one unidirectional magnetisation magnet and three ferromagnetic inserts between polar headpieces. Magnets in each two neighbour cells have opposite magnetisation. Inserts are positioned with gaps against polar headpieces in hubs in the form of step rotation bodies and fixated by annular elements, and form inner cavities of high frequency resonators in slow-down system. Hubs and annular elements are made of non-magnetic material with high heat conductivity and comprise vacuum shell together with polar headpieces.
EFFECT: enhanced current permission of beam in high-performance traveling wave lamp in short-wave part of UHF range due to intense electron stream focusing in transit channel.
3 cl, 9 dwg
FIELD: microwave equipment, applicable in constructions of resonant microwave units based on cylindrical resonators with H111-type of oscillations conjugate to rectangular waveguides, in particular, centimetric wave band in atomic-beam frequency standards.
SUBSTANCE: the resonant microwave unit has a casing with a cylindrical cavity closed from two sides by end face walls forming a resonator cavity with H111-type of oscillations, with two components of coupling with the outer microwave circuits. The components of coupling with the outer microwave circuits are made in the form of slit-line coupling openings. The coupling openings are located on the opposite flat lateral sides of the casing, parallel with each other and with the longitudinal axis of the resonator cavity, and designed for connection of the outer rectangular waveguides. The longitudinal axes of the coupling openings lie in the first plane passing through the longitudinal axis of the resonator cavity perpendicularly to these lateral sides, and their centers - on the intersection of the mentioned first plane with the second plane coinciding with the plane of the transverse symmetry of the resonator cavity. At least one adjusting electroconducting rod is positioned in one of the end face walls in parallel with the longitudinal axis of the resonator cavity, it is used for varying the volume of the resonator cavity in the process of adjustment of the resonant frequency by introduction inside the resonator cavity, located within the circular zone with a diameter equal D/4, where D - the diameter of the resonator cavity, and the center positioned in the intersection of the mentioned first plane with the plane of the end face wall at distance L from the longitudinal axis of the resonator cavity, where L=3D/8.
EFFECT: provided smooth adjustment of the resonant frequency and simplicity of conjugation with the outer rectangular waveguides.
2 cl, 3 dwg
FIELD: lighting and microwave engineering; lights used for producing directional optical radiation fluxes.
SUBSTANCE: proposed microwave exciter has spherical electrodeless lamp disposed in axisymmetrical microwave cavity, at least part of whose wall being made in the form of sphere segment with its center of curvature aligned with center of electrodeless lamp; part of microwave cavity wall made in the form of sphere segment is provided with at least one tube that contacts wall on its external surface end, is normal to sphere segment, is made in the form of below-cutoff waveguide, and is optically coupled with microwave cavity through light-emitting aperture in microwave cavity wall. Part of microwave cavity wall made in the form of sphere segment and provided with at least one tube is made of microwave and opaque solid material and has mirror conducting inner surface. Part of microwave cavity wall made in the form of sphere segment and provided with at least one tube is produced from microwave opaque reticular conducting material with coefficient of translucence ktr1; at least one light-emitting aperture in microwave cavity wall may be covered with reticular conducting material whose coefficient of translucence ktr2 is higher than coefficient ktr1 of microwave cavity wall material.
EFFECT: enhanced local translucence of microwave cavity walls that raises quality of directional light fluxes and yield of useful light output from microwave cavity without losing its microwave opaqueness.
6 cl, 7 dwg
FIELD: tuning of cavity resonator.
SUBSTANCE: device can be used as for tuning of cavity resonator and for changing its cavity and, as a result, changing the resonant frequency of cavity resonator. Movable wall, which has to be the door for tuning resonator, has support, carrier-conducting plate provided with many contact pins disposed along peripheral part of the wall. Pins are made together with conducting plate. Method of making tune door of cavity resonator provides initial forming of contact pins around edge of conducting plate and mounting plate onto platform by means of two-sided glue tape, for example. Conducting plate has to be part of internal surface of cavity resonator. Pins can be made within one operation, for example, by means of photoetching. Pins have to have complete integrity with active surface to provide optimal electric conductivity among them.
EFFECT: improved quality of tuning.
16 cl, 8 dwg
FIELD: microwave electronics.
SUBSTANCE: proposed inductively frequency tuned microwave cavity resonator that can be used for O-type devices, such as klystrons, has inductive frequency tuning component made in the form of adjusting screw disposed in threaded through hole in resonator narrow wall; it contacts threaded sections of resonator wide walls at least on part of their length. Thread in sections of resonator wide walls is extension of that in hole of resonator narrow wall. Threaded sections of opposing wide walls can be also made in the form of projections facing one another and symmetrically disposed relative to resonator axis. Resonator is easily tuned and provides for repeatability of results and absence of stray electron secondary resonance.
EFFECT: enhanced operating-frequency tuning range, resistance to mechanical impacts, and reliability; simplified design.
6 cl, 8 dwg
FIELD: microwave engineering; radio electronic devices, primarily those for space vehicles.
SUBSTANCE: proposed microwave filter has cavity, temperature compensation device , and stop with threaded hole accommodating frequency adjuster in the form of screw. The latter and cavity are made of materials having different temperature coefficient of linear expansion. Screw is designed for deforming elastic cavity wall and is assembled of internal and external screws made of material s having different temperature coefficients of linear expansion. External screw has internal threaded hole accommodating internal screw.
EFFECT: ability of maintaining desired thermal stability of cavity resonant frequency at gradual variations in temperature coefficient of linear expansion.
3 cl, 2 dwg
SUBSTANCE: device comprises a symmetrical single-mode accumulating resonator, restricted by short circuitors, a microwave switch and elements of energy input and output on the basis of waveguide tees. An element of energy input arranged in the resonator's centre is made in the form of an H-tee. The element of energy output is made on the basis of two H-tees that are complanar with the H-tee of the input element, connected symmetrically as short-circuited arms of the resonator at the distance of nλb/2 from the appropriate short circuitor. An output summing H-tee is connected symmetrically to output arms of H-tees of the output element. The microwave switch is placed in the centre of the resonator, length of which is (4n+1)λb/2.
EFFECT: significant increase of signals capacity due to reduced time for accumulated energy release.
SUBSTANCE: metal base from nickel, cobalt, copper or alloy of these metals is formed by sheet stamping. A multilayer coating containing a protective layer from chrome, molybdenum or tungsten, a superconducting layer from niobium or niobium stannide, a stabilising layer from tantalum or its alloy with niobium and a support heat-conducting copper layer are serially applied by electrochemical deposition onto the outer surface of the superconducting item base. After application of the protective layer it is exposed to mechanical polishing to provide for surface purity of 0.1 mcm and less. The superconducting layer of the item is applied by deposition from a melt of alkaline metals halogenides salts and salts of niobium or niobium and tin at the temperature of 750-850°C and cathode density of current 100-500 A/m2. After polishing of the superconducting layer the item is exposed to annealing in vacuum at 500-900°C.
EFFECT: reduced surface resistance of volume resonators at high frequencies and higher quality, lower level of energy losses from currents of field emission.
7 cl, 6 ex, 1 dwg, 1 tbl
SUBSTANCE: SHF detector contains a section of a rectangular feeding waveguide with a short circuitor at one end; installed inside the wave guide is a detector SHF diode of cartridge type; the diode first electrode fixation is ensured via a cylindrical metal slug affixed (via threaded connection) to the wave guide broad wall through a hole in the broad wall; the depth of the slug lower part penetration into the waveguide is limited by a jam nut; the diode first electrode is fixed in the first blind hole on the slug lower part side the axis whereof is shifted diametrically parallel to the metal slug rotation axis; arranged in the metal slug is a second through hole the axis whereof is shifted diametrically parallel to the slug axis; installed in the second hole is a dielectric slug wherethrough a metal rod output is introduced into the wave guide; the diode second electrode is connected (via an electric conductor) to the lower end of the rod output forming an inductive loop of the diode to the waveguide coupling.
EFFECT: considerable increase of SHF detector sensitivity.
2 cl, 2 dwg
FIELD: physics, radio.
SUBSTANCE: resonant microwave compressor can be used to generate powerful microwave pulses with nanosecond duration. The resonant microwave compressor has a symmetrical resonator (1) made from a waveguide with two shorted arms, a microwave switch and energy input (3) and output elements based on waveguide tees. The input (3) element is made on the side of the lateral arm of the H tee (4), lying at the centre of the cylindrical resonator with length L=(4n+1)λw/2, where n>1 and λw is the wavelength in the resonator. The output element is in form of two output H tees (6) made from a circular waveguide with diameter D satisfying the condition λ/1.7<D<λ/1.03, where λ is the wavelength in free space, lying in the same plane as the H tee (4) of the input (3) element and connected symmetrically in the shorted arms of the resonator (1), at a distance L1=nλw/2 from the corresponding short-circuiter (2). A summation H tee (5) is connected to the lateral arms of the output H tees (6) symmetrically by straight arms. The resonator (1) has four sections of a circular waveguide of length L1-λw each and diameter D1 which satisfies the condition D<D1<λ/0.82. The sections are connected in series with the straight arms of the output H tees (6) through tapered waveguide transitions (9) from diameter D1 to diameter D, one on each section. A half-wave switching section with diameter D1 with a microwave switch (8) is placed at the centre of the resonator (1). Waveguide transitions (9) from diameter D1 to diameter D have length L2 approximately equal to 0.5Λ, where Λ is the wavelength in the waveguide of diameter D at the lower frequency of the bandwidth of the transition which is equal to the 1/t, where t is the round-trip propagation time of the operating wave along the section of the resonator (1) with length L1=nλw/2.
EFFECT: high power of output signals of the compressor owing to shorter time for outputting energy and a larger cross-section of the accumulative resonator.
2 cl, 1 dwg
FIELD: radio engineering.
SUBSTANCE: compressor includes single-mode coaxial resonator (1) with short-circuiting switches (2), energy input (3) and output elements, microwave commutator (6) and the capacity shortening by λ/4, which is a discharge gap of microwave commutator (6) and formed by breakage of inner conductor of resonator (1), where λ - operating wave length. Resonator (1) is symmetrical; its length L is equal to L=(4n+1/2)λ/2, where n>1. Input element (3) is located in the resonator centre, and output element is made in the form of two coaxial output T-pieces (4) lying in one plane with input element (3) and connected symmetrically to short-circuited arms of resonator (1), one for each arm, at the distance L1=nλ/2 from corresponding short-circuiting switch (2) and distance L1+λ/8=(n+1/4)λ/2 from centre of resonator (1), and summing coaxial T-piece (5) is connected symmetrically with straight arms to side arms of output T-pieces (4). Shortening capacity is located in the centre of resonator and divides the resonator into two parts, and in combination with output T-pieces of energy output element - into four equal parts.
EFFECT: higher output signal power.