The conversion equipment and feeder equipment of rectangular waveguide and parallel-plate waveguide
Technical field
The utility model is related to antenna technical field, it particularly relates to a kind of rectangular waveguide and turn of parallel-plate waveguide
Changing device and feeder equipment.
Background technology
Rectangular waveguide is rectangular cross-section, the cavity of interior empty outer closure being made of metal material, can be used for transmitting pin
Rate very high electromagnetic wave signal, can make decay very little of the electromagnetic wave of high frequency in transmitting procedure.Electromagnetic wave is by longitudinal field point
The presence or absence of amount can be divided into three kinds of TE ripples, TM ripples and TEM ripples, can only transmit TE ripple and TM ripple in rectangular waveguide and can not transmit
TEM ripples.Therefore need to complete rectangular waveguide to the conversion of parallel-plate waveguide by conversion equipment.
In order to realize TE moulds in rectangular waveguide to the conversion of parallel-plate waveguide TEM moulds, conversion equipment of the prior art is big
More by setting metal struts to realize conversion in the part that reduction is reflected and is shunted.
But the size of metal struts and its relative position with rectangular waveguide port, to integrally-built conversion performance shadow
Sound is larger therefore very high to requirement on machining accuracy, and this results in difficulty of processing increase, the conversion of rectangular waveguide to parallel-plate waveguide
Performance is difficult to be guaranteed.
For the conversion equipment difficulty of processing in correlation technique it is big the problem of, effective solution is not yet proposed at present.
Utility model content
For the conversion equipment difficulty of processing in correlation technique it is big the problem of, the utility model proposes a kind of rectangular waveguide with
The conversion equipment and feeder equipment of parallel-plate waveguide, reduce difficulty of processing, reduce cost, improve bandwidth.
What the technical solution of the utility model was realized in:
According to one side of the present utility model there is provided a kind of rectangular waveguide and the conversion equipment of parallel-plate waveguide, turn
Changed the outfit the cavity for being set to and being connected between rectangular waveguide and parallel-plate waveguide, and conversion equipment is turned with the axisymmetrical of rectangular waveguide
Changing device upper surface is connected to parallel-plate waveguide upper surface and rectangular waveguide upper surface, and conversion equipment includes:Flow dividing structure, shunting
Structure includes probeing into the first separates walls, the second separates walls and the 3rd separation of inside conversion equipment and vertical conversion equipment upper surface
Wall;Wherein, the second separates walls are perpendicular to the axis of rectangular waveguide, and the first separates walls are vertically connected at the second separates walls close to rectangle
The one side of waveguide, the 3rd separates walls are vertically connected at one side of second separates walls close to parallel-plate waveguide.
In one embodiment, the thickness of the first separates walls is more than the thickness of the second separates walls, and the thickness of the first separates walls
Thickness of the degree more than the 3rd separates walls.
In one embodiment, two sides of conversion equipment are each perpendicular to conversion equipment upper surface, and conversion equipment
Two side surface configurations are symmetrical stepped mating structure.
In one embodiment, the 3rd separates walls extend to square parallel-plate waveguide.
In one embodiment, in addition to:Coupled zone, coupled zone is the elongated surfaces and the 3rd separates walls of the second separates walls
Elongated surfaces surround the region to be formed with parallel-plate waveguide.
In one embodiment, the material of flow dividing structure is metal.
In one embodiment, it is correspondingly arranged and is vertically connected under conversion equipment upper surface and conversion equipment with coupled zone
Metal struts between surface.
In one embodiment, metal struts are arranged at the midpoint that coupled zone is connected with parallel-plate waveguide.
According to other side of the present utility model there is provided a kind of feeder equipment, including:One or more above-mentioned conversions
Device.
In one embodiment, in addition to:Multiple waveguide power dividers, multiple waveguide power dividers are connected by multiple conversion equipments
Parallel-plate waveguide is connected to feed to parallel-plate waveguide.
The utility model carries out work(point to rectangular waveguide by flow dividing structure, then electromagnetic wave is carried out mutually by coupled zone
In-phase stacking, while the propagation of the quasi- TEM ripples in parallel-plate waveguide is realized, with spy simple in construction, easy to process
Point, and height can be consistent with rectangular waveguide and parallel-plate waveguide, it is ensured that the low section of integral feed device.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
In required for the accompanying drawing that uses be briefly described, it should be apparent that, drawings in the following description are only of the present utility model
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other accompanying drawings.
Fig. 1 is the schematic top plan view of the conversion equipment according to the utility model embodiment;
Fig. 2 is the curve map of the reflectance factor S11 according to the conversion equipment of the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art are obtained all belongs to
The scope protected in the utility model.
According to embodiment of the present utility model, there is provided a kind of rectangular waveguide and the conversion equipment of parallel-plate waveguide.
As shown in figure 1, according to the conversion equipment 100 of the utility model embodiment for be connected to rectangular waveguide 200 with it is parallel
Cavity between board waveguide 300, conversion equipment 100 is with the axisymmetrical of rectangular waveguide 200, the connection of the upper surface of conversion equipment 100
In the upper surface of parallel-plate waveguide 300 and the upper surface of rectangular waveguide 200, conversion equipment 100 includes the flow dividing structure in cross shape
110.Specifically, flow dividing structure 110 includes probe into the inside of conversion equipment 100 and the vertical upper surface of conversion equipment 100 first point
From wall 111, the second separates walls 112 and the 3rd separates walls 113.
Wherein, the second separates walls 112 are perpendicular to the axis of rectangular waveguide 200, and the first separates walls 111 are vertically connected at second
Separates walls 112 are close to the one side of rectangular waveguide 200, and the 3rd separates walls 113 are vertically connected at the second separates walls 112 close to parallel
The one side of board waveguide 300.
In one embodiment, the material of flow dividing structure 110 is metal.The metal material that flow dividing structure 110 is used can
, can also be different from the material that the surface of conversion equipment 100 is used with identical with the material that the surface of conversion equipment 100 is used.
By adjusting the length that the thickness and the first separates walls 111 of the first separates walls 111 extend to rectangular waveguide 100, energy
Enough change the resonant frequency of waveguide.In actual applications, can be according to the thickness of the wavelength of the electromagnetic wave of transmission to the first separates walls 111
Degree and length are configured.
In one embodiment, as shown in figure 1, the thickness of the first separates walls 111 is more than the thickness of the second separates walls 112,
And first separates walls 111 thickness be more than the 3rd separates walls 113 thickness.
In one embodiment, the 3rd separates walls 113 extend to square parallel-plate waveguide 300.So that electric field wave is entering flat
Before plate waveguide 300, in the state being separated.
In one embodiment, as shown in figure 1, also being included according to the conversion equipment 100 of the utility model embodiment:Coupling
Area 115, coupled zone 115 is the elongated surfaces of the second separates walls 112 and the elongated surfaces of the 3rd separates walls 113 and parallel-plate waveguide 300
Surround the region formed.Electromagnetic wave enters parallel-plate waveguide 300, Neng Gou when by coupled zone 115 after mutual in-phase stacking
Realize that quasi- TEM ripples are propagated in parallel-plate waveguide 300.
Wherein, in addition to it is correspondingly arranged with coupled zone 115 and is vertically connected at the upper surface of conversion equipment 100 and conversion equipment
Metal struts 116 between 100 lower surfaces, metal struts 116 are arranged at the center of coupled zone 115.As shown in fig. 1,
Metal struts 116 are arranged at the midpoint that coupled zone 115 is connected with parallel-plate waveguide 300.By setting the energy of metal struts 116
Enough eliminate the higher mode that electromagnetic wave is produced in transmitting procedure.
Preferably, two sides 114 of conversion equipment 100 all should be perpendicular to the upper surface of conversion equipment 100, and converting means
Two sides 114 for putting 100 are configured to symmetrical stepped mating structure.Specific side 114 includes multiple stairsteppings
Shape, specific stairstepping and often the big I of section ladder is designed according to the property of electromagnetic wave, by by conversion equipment 100
Two sides 114 be configured to stepped mating structure, reflection of the electromagnetic wave in transmitting procedure can be reduced.
As shown in Fig. 2 being the curve map of the reflectance factor S11 according to the conversion equipment of the utility model embodiment.Wherein,
The minimum point m1 coordinates of S11 curves are (14.2400, -29.7662), and return loss is better than -29dB;Pass through m1 points and m2 points
Coordinate understands that in the range of 14.08GHz-14.24GHz, return loss is superior to -15dB.
According to embodiment of the present utility model, a kind of feeder equipment is additionally provided, the feeder equipment includes one or more
Above-mentioned conversion equipment.
In one embodiment, also included according to the feeder equipment of the utility model embodiment:Multiple waveguide power dividers are more
Individual waveguide power divider is connected to parallel-plate waveguide to feed to parallel-plate waveguide by multiple conversion equipments.
Parallel-plate waveguide can be used for feeding CTS antennas, and feeder equipment of the present utility model can be used for CTS antennas
Line source feed is carried out, feeder equipment of the present utility model can also be used for carrying out line source feed to other suitable antennas.
In summary, by means of above-mentioned technical proposal of the present utility model, work(is carried out to rectangular waveguide by flow dividing structure
Point, then electromagnetic wave is carried out mutual in-phase stacking by coupled zone, realizing the propagation of the quasi- TEM ripples in parallel-plate waveguide
Meanwhile, with it is simple in construction, easy to process the characteristics of, and height can be consistent with rectangular waveguide and parallel-plate waveguide, it is ensured that
The low section of integral feed device;Stairstepping is set to further through by two sides, electromagnetic wave is reduced in transmitting procedure
Reflection;Also by setting metal struts in coupled zone, the higher mode that electromagnetic wave is produced in transmitting procedure can be eliminated.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in the utility model
Protection domain within.