CN106785286A - Waveguide coaxial converter - Google Patents
Waveguide coaxial converter Download PDFInfo
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- CN106785286A CN106785286A CN201611200610.1A CN201611200610A CN106785286A CN 106785286 A CN106785286 A CN 106785286A CN 201611200610 A CN201611200610 A CN 201611200610A CN 106785286 A CN106785286 A CN 106785286A
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- Prior art keywords
- cavity
- electromagnetic sealing
- end cap
- groove
- staircase match
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/08—Coupling devices of the waveguide type for linking dissimilar lines or devices
- H01P5/10—Coupling devices of the waveguide type for linking dissimilar lines or devices for coupling balanced with unbalanced lines or devices
- H01P5/103—Hollow-waveguide/coaxial-line transitions
Abstract
The invention discloses a kind of waveguide coaxial converter, including interface end, cylindrical waveguide step chamber butt joint body, staircase match cavity, micro-strip substrate, electromagnetic sealing end cap and radio frequency connector；Interface end, cylindrical waveguide step chamber butt joint body, junctor matching cavity, micro-strip substrate and electromagnetic sealing end cap are docked step by step；Radio frequency connector is arranged on the lateral wall of electromagnetic sealing end cap and staircase match cavity；And staircase match cavity is the integrated design, with multistage rectangular step chamber；Between cylindrical waveguide step chamber butt joint body and staircase match cavity to being connected in seamless fitting connection, between staircase match cavity and electromagnetic sealing end cap to being connected in seamless connection；Micro-strip substrate is arranged between staircase match cavity and electromagnetic sealing end cap, and the rectangular step chamber in staircase match cavity.Waveguide coaxial converter seamless connecting structure on the whole is realized, so as to efficiently solve the problems, such as that traditional Ka frequency range waveguide coaxial connecter devices are easily caused the leakage of useful signal.
Description
Technical field
The present invention relates to technical field of satellite communication, and in particular to a kind of waveguide coaxial converter.
Background technology
Ka frequency range waveguide coaxial connecter devices are extensive at present as one of important research direction in radio communication measurement
The satellite engineering such as satellite communication, satellite remote sensing field is applied to, is the key modules in satellite communication engineering technology application field, together
When it is particularly important in satellite communication to the conversion of electromagnetic wave signal and transmission availability.But, the waveguide of existing Ka frequency ranges
Coaxial conversion equipment is easy to generation in the conversion of microwave signal and transmitting procedure and has more abnormal resonance point, and cannot remove
Working frequency range, while it cannot avoid the phenomenon in structure gap in working frequency range due to it, so as to easily lead to effectively letter
Number reveal, the accurately and effectively transmission and conversion of final influence microwave signal.
The content of the invention
In view of this, the embodiment of the present invention provides a kind of waveguide coaxial converter, same with the Ka frequency range waveguides for solving traditional
Axle conversion equipment is easily caused the problem of the leakage of useful signal.
Based on the object of the invention provide a kind of waveguide coaxial converter, including interface end, cylindrical waveguide step chamber butt joint body,
Staircase match cavity, micro-strip substrate, electromagnetic sealing end cap and radio frequency connector；
The interface end, cylindrical waveguide step chamber butt joint body, junctor matching cavity, the micro-strip substrate and described
Electromagnetic sealing end cap is docked step by step；
The radio frequency connector is arranged on the lateral wall of the electromagnetic sealing end cap and the staircase match cavity；And
The staircase match cavity is the integrated design, with multistage rectangular step chamber；
Between cylindrical waveguide step chamber butt joint body and the staircase match cavity to being connected in seamless fitting connection, it is described
Between staircase match cavity and the electromagnetic sealing end cap to being connected in seamless connection；
The micro-strip substrate is arranged between the staircase match cavity and the electromagnetic sealing end cap, and across the rank
Rectangular step chamber in ladder matching cavity.
Wherein in one embodiment, there is level Four rectangle stepped cavity in the staircase match cavity；And
Often the ladder height between adjacent two-stage rectangular step chamber is：3.5mm—4.8mm.
Wherein in one embodiment, the rectangular step chamber is round rectangle stepped cavity, and the round rectangle at different levels
The radius of corner of stepped cavity is 0.6mm.
Wherein in one embodiment, by cavity bottom surface to the top of the electromagnetic sealing end cap of the staircase match cavity
Depth between face is 30mm -32mm.
Wherein in one embodiment, cylindrical waveguide step chamber butt joint body includes abutted flange and docking chassis；
The abutted flange is connected with the docking chassis；And
The abutted flange offers annular groove towards the one side of the staircase match cavity；
The staircase match cavity is provided with annular boss towards the one side of cylindrical waveguide step chamber butt joint body；
The annular boss is mutually chimeric with the annular groove.
Wherein in one embodiment, the height of the annular boss is 1.25mm -1.65mm, width be 1.05mm -
1.45mm。
Wherein in one embodiment, multiple mounting holes, the mounting hole scattering device are offered on the abutted flange
In the periphery of the annular groove；And
The staircase match cavity accordingly offers multiple mounting grooves towards the one side of cylindrical waveguide step chamber butt joint body,
The mounting groove is corresponded with the mounting hole；
The abutted flange passes through the mounting hole and the mounting groove with the staircase match cavity by mounting screw
Pretension is connected.
Wherein in one embodiment, rotary steering groove is offered on the docking chassis；The rotary steering groove
Number is two, and is symmetrical arranged；
The two ends of the rotary steering groove are respectively arranged with the spacing heavy platform of cylindricality；
Locking of the docking chassis with the interface end by separate space lock-screw on the spacing heavy platform of the cylindricality is entered
Row is fixedly connected.
Wherein in one embodiment, it is further opened with that transitional pore is installed on the docking chassis；
The number for installing transitional pore is two, and respectively in the symmetrical center line of the rotary steering groove.
Wherein in one embodiment, opened up on the side wall that the staircase match cavity is connected with the radio frequency connector
There is kidney-shaped groove；
The bottom surface of the electromagnetic sealing end cap is provided with kidney-shaped briquetting, and the kidney-shaped briquetting is located at the electromagnetic sealing end cap
Front end, it is and corresponding with the kidney-shaped groove；And
The kidney-shaped briquetting is mutually overlapped with the bottom of the kidney-shaped groove；
Wherein, the bottom surface of the electromagnetic sealing end cap is：The electromagnetic sealing end cap is towards the staircase match cavity
Simultaneously；
The front end of the electromagnetic sealing end cap is：The electromagnetic sealing end cap is adjacent to one end of the radio frequency connector.
Wherein in one embodiment, the bottom surface of the electromagnetic sealing end cap is additionally provided with electromagnetic sealing parting bead, the electricity
Magnetic seal parting bead is located at the both sides of the kidney-shaped briquetting；
The staircase match cavity offers electromagnetic sealing groove towards one end of the electromagnetic sealing end cap, and the electromagnetism is close
Sealing groove is corresponding with the electromagnetic sealing parting bead；And
The electromagnetic sealing groove is mutually chimeric with the electromagnetic sealing parting bead.
Wherein in one embodiment, the bottom surface of the electromagnetic sealing end cap is additionally provided with boss, and the boss is located at institute
State the rear end of the bottom surface of electromagnetic sealing end cap；
The staircase match cavity is fluted towards one end relative set of the electromagnetic sealing end cap；
The groove is engaged with the boss.
Wherein in one embodiment, the boss is L-shaped boss, and the groove is stepped recesses.
Wherein in one embodiment, the bottom of rectangular step chamber in the staircase match cavity and the kidney-shaped groove
Interior insert-type groove is offered at orthogonal area；
Cross section of the interior insert-type groove across the rectangular step chamber；
The micro-strip substrate is sintered in the interior insert-type groove.
Using above-mentioned technical proposal, the present invention can at least obtain following technique effects：
It passes through to set a kind of waveguide coaxial converter, and it includes interface end, the docking of cylindrical waveguide step chamber docked step by step
Body, staircase match cavity, micro-strip substrate and electromagnetic sealing end cap, while radio frequency connector is arranged on into the outer of electromagnetic sealing end cap
On the lateral wall of side wall and staircase match cavity.Also, in waveguide coaxial converter of the invention, staircase match cavity is integrated
Change design, it is internal with multistage rectangular step chamber, meanwhile, cylindrical waveguide step chamber butt joint body is with staircase match cavity to being connected in
Seamless fitting connection, staircase match cavity, to being connected in seamless connection, thus achieves Waveguide coaxial and turns with electromagnetic sealing end cap
Parallel operation seamless connecting structure on the whole, so as to also avoid the leak case of useful signal, finally efficiently solves tradition
Ka frequency range waveguide coaxial connecter devices be easily caused useful signal leakage problem.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, institute in being described to the embodiment of the present invention below
The accompanying drawing for needing to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the invention
Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also implement according to the present invention
The content and these accompanying drawings of example obtain other accompanying drawings.
Fig. 1 is the overall structure generalized section of the waveguide coaxial converter described in the present embodiment；
Fig. 2 is that the overall structure of the cylindrical waveguide step chamber butt joint body in the waveguide coaxial converter described in the present embodiment is illustrated
Figure；
Fig. 3 is that the overall structure of the cylindrical waveguide step chamber butt joint body in the described waveguide coaxial converter of this implementation is illustrated
Figure；
Fig. 4 is the front end front view of the electromagnetic sealing end cap in the waveguide coaxial converter described in the present embodiment；
Fig. 5 is that the front end local feature of the staircase match cavity in the waveguide coaxial converter described in the present embodiment is illustrated
Figure；
Fig. 6 is the rear end front view of the electromagnetic sealing end cap in the waveguide coaxial converter described in the present embodiment；
Fig. 7 is that the rear end local feature of the staircase match cavity in the waveguide coaxial converter described in the present embodiment is illustrated
Figure；
Fig. 8 is the top view of the waveguide coaxial converter described in the present embodiment；
Fig. 9 is the main view profile of the waveguide coaxial converter described in the present embodiment；
Figure 10 is the upward view of the waveguide coaxial converter described in the present embodiment；
Figure 11 is the waveguide coaxial converter batch testing S parameter feature insertion loss curve map described in the present embodiment；
Figure 12 is the waveguide coaxial converter batch testing S parameter feature return loss plot figure described in the present embodiment.
Through accompanying drawing, it should be noted that similar label is used to describe same or analogous element, feature and structure.
Specific embodiment
The disclosure for providing description referring to the drawings to help comprehensive understanding to be limited by claim and its equivalent
Various embodiments.Hereinafter description includes the various details for helping understand, but these details will be considered as only being example
Property.Therefore, it will be appreciated by those of ordinary skill in the art that do not depart from the scope of the present disclosure and spirit in the case of, can be right
Various embodiments described herein makes various changes and modifications.In addition, in order to clear and succinct, known function and construction are retouched
Stating to be omitted.
Term and vocabulary used in following description and claims are not limited to document implication, but only by inventor
For enabling the disclosure clearly and as one man to be understood.Therefore, to those skilled in the art it should be apparent that carrying
The description of various embodiments of this disclosure is merely to exemplary purpose under being provided with, and it is unrestricted by appended claims and its
The purpose of the disclosure that equivalent is limited.
It should be understood that unless context is clearly indicated in addition, otherwise singulative also includes plural.Thus, for example,
Reference to " assembly surface " includes the reference to one or more such surfaces.
Fig. 1 is the profile of the waveguide coaxial converter of the present embodiment.With reference to Fig. 1, Fig. 8 to Figure 10, described in the present embodiment
Waveguide coaxial converter include interface end 3, cylindrical waveguide step chamber butt joint body 2, staircase match cavity 1, micro-strip substrate 4, electromagnetism
End cover 6 and radio frequency connector 7.Wherein, interface end 3, cylindrical waveguide step chamber butt joint body 2, staircase match cavity 1, micro-strip base
Plate 4 and electromagnetic sealing end cap 6 are docked step by step.Radio frequency connector 7 is arranged on the electromagnetic sealing end cap 6 and the staircase match chamber
On the lateral wall of body 1.Also, staircase match cavity 1 is the integrated design, with multistage rectangular step chamber 10.In the present embodiment
In, staircase match cavity 1 has level Four rectangle stepped cavity 10.Meanwhile, cylindrical waveguide step chamber butt joint body 2 and staircase match cavity 1
Between to being connected in seamless fitting connection, between staircase match cavity 1 and electromagnetic sealing end cap 6 to being connected in seamless connection.It is micro-
Belt substrate 4 is arranged between staircase match cavity 1 and electromagnetic sealing end cap 6, and the rectangular step in staircase match cavity 1
Chamber 10.
Thus, it passes through to set staircase match cavity 1 and is the integrated design, and set cylindrical waveguide step chamber butt joint body 2 with
Between staircase match cavity 1 to being connected in seamless fitting connection, docking between staircase match cavity 1 and electromagnetic sealing end cap 6
To be seamlessly connected, so that the waveguide coaxial converter overall structure of the present embodiment is seamless connecting structure, this is also just effective
Avoid the waveguide coaxial connecter device of traditional Ka frequency ranges causes the leakage of useful signal to show due to there is certain gap
As so as to ensure that the accurate delivery of signal and effectively conversion, improve the reliability of waveguide coaxial converter.
, wherein it is desired to explanation, because the waveguide coaxial converter of the present embodiment is the stepped cavity based on Ka frequency ranges
With formula waveguide coaxial connecter structure, therefore in order to ensure its high matched, in the present embodiment, with level Four rectangle stepped cavity
In 10 staircase match cavity 1, the ladder height between every adjacent two-stage rectangular step chamber 10 is 4.3mm ± 0.5mm.Also,
Rectangular step chambers 10 at different levels are round rectangle stepped cavity 10.That is, the rectangular angular in rectangular step chamber 10 is fillet.Meanwhile, it is at different levels
The radius of corner of round rectangle stepped cavity 10 is preferably 0.6mm.
Further, it should also be noted that in the waveguide coaxial converter of the present embodiment, staircase match cavity 1 with
Also there is micro-strip radiation area air chamber 5, to ensure that microwave signal is connected from square wave guide cavity to radio frequency between electromagnetic sealing end cap 6
The coaxial effective smooth transmission of device 7.Also, for the purposes of its high matched, in the present embodiment, staircase match is effectively ensured
The depth preferably 31mm of the overall cavity that cavity 1, micro-strip radiation area air chamber 5 and electromagnetic sealing end cap 6 are formed ±
1mm.That is, by cavity bottom surface to the depth between the top surface of electromagnetic sealing end cap 6 of staircase match cavity 1 be preferably 30mm-
32mm。
Further, referring to figs. 2 and 3, in order to realize cylindrical waveguide step chamber butt joint body 2 and staircase match cavity 1 it
Between slitless connection structure, in the present embodiment, used as a kind of embodiment, cylindrical waveguide step chamber butt joint body 2 can specifically be wrapped
Include abutted flange and docking chassis.Wherein, abutted flange is preferably pintongs flange.Connection chamber is offered in the middle part of docking chassis.
Abutted flange is connected with the connection chamber on docking chassis, forms the cylindrical waveguide step chamber 16 of cylindrical waveguide step chamber butt joint body 2.And
And, abutted flange offers annular groove 15 towards the one side of staircase match cavity 1.Accordingly, staircase match cavity 1 is towards circle
The one side of waveguide stepped cavity butt joint body 2 is provided with annular boss.Annular boss is mutually chimeric with annular groove 15.Thus, it leads to
The setting annular groove 15 on the abutted flange of cylindrical waveguide step chamber butt joint body 2 is crossed, and annular is set on staircase match cavity 1
Cylindrical waveguide step chamber butt joint body 2 and staircase match chamber are realized in boss, mutually chimeric by annular groove 15 and annular boss
Seamless connection between body 1, simple structure, it is easy to accomplish, and it is with low cost.
Preferably, in order to before ensureing cylindrical waveguide step chamber butt joint body 2 and staircase match cavity 1 seamless connecting structure it is steady
Solidity, and further ensure that seamless connection between the two is the connection of zero gap, in the present embodiment, on abutted flange
Multiple mounting holes are offered, mounting hole scattering device is in the periphery of annular groove 15.Accordingly, staircase match cavity 1 is towards circle
The one side of waveguide stepped cavity butt joint body 2 accordingly offers multiple mounting grooves, and mounting groove is corresponded with mounting hole.Thus, dock
Flange is connected by mounting screw 9 with staircase match cavity 1 through mounting hole and mounting groove pretension.That is, circular waveguide rank is being carried out
During slitless connection between terraced chamber butt joint body 2 and staircase match cavity 1, mounting screw 9 is sequentially passed through into abutted flange first
The mounting groove of mounting hole and staircase match cavity 1, and then mounting screw 9 is screwed by way of screw pretightning force so that convex annular
Platform is mutually chimeric with annular groove 15, and it is being further ensured that between cylindrical waveguide step chamber butt joint body 2 and staircase match cavity 1
While absolute slitless connection, the steadiness for connecting between the two has not only been effectively ensured, at the same be also effectively simplified both it
Between attachment structure, it is simple to operate, it is easy to accomplish.
In addition, herein also, it should be noted that in the present embodiment, the height of the annular boss set by it is
1.25mm -1.65mm, width is 1.05mm -1.45mm.Accordingly, the gap between annular groove 15 and annular boss is preferred
The minim gap of 0.02mm -0.04mm is set to, to ensure that annular boss is effectively smoothly embedded into annular groove 15.
Further, docking between cylindrical waveguide step chamber butt joint body 2 and interface end 3 is similarly slitless connection.Meanwhile, it is
Can carry out the measure batch to Ka band satellite communication outdoor unit product output signals, cylindrical waveguide step chamber butt joint body 2
Preferably rotatable cylindrical waveguide step chamber butt joint body 2.That is, in the waveguide coaxial converter described in the present embodiment, cylindrical waveguide step
Chamber butt joint body 2 can rotate relative to interface end 3.Specifically, referring to figs. 2 and 3 and Fig. 7, in the present embodiment, dock bottom
Rotary steering groove 13 is offered on disk, the number of rotary steering groove 13 is two, and is symmetrical arranged.Meanwhile, rotary steering groove 13
Two ends be respectively arranged with the spacing heavy platform 25 of cylindricality.Docking chassis is spacing heavy in cylindricality by separate space lock-screw 8 with interface end 3
Locking on platform 25 is fixedly connected.
That is, (that is, chassis is docked near the side of test product circular waveguide interface end 3 in cylindrical waveguide step chamber butt joint body 2
Place) open up symmetrically arranged rotary steering groove 13 at two, and to be provided with cylindricality spacing at the two ends of each rotary steering groove 13
Heavy platform 25.Thus, when the slitless connection between cylindrical waveguide step chamber butt joint body 2 and interface end 3 is carried out, first by two groups of separate spaces
The arc transition region everywhere that lock-screw 8 passes through abutted flange, is respectively charged into rotary steering groove 13.Wherein, when separate space is locked
Tight screw 8 is not disposed in when at the spacing heavy platform 25 of cylindricality, and it is in loosening and does not depart from state, now can be by rotating cylindrical waveguide step
Chamber butt joint body 2 or interface end 3 rotate to realize between cylindrical waveguide step chamber butt joint body 2 and interface end 3 along rotary steering groove 13
Rotating dress is matched somebody with somebody.When separate space lock-screw 8 is placed at the spacing heavy platform 25 of cylindricality, it is in locking state, is now locked by separate space
Tight locking of the screw 8 on the spacing heavy platform 25 of cylindricality of crossover location is to be capable of achieving cylindrical waveguide step chamber butt joint body 2 and interface end 3
Be fixedly connected, and then after locking state can carry out Ka band satellite communication outdoor unit product output signals measurement.
Herein, it is necessary to explanation, carry out it is seamless between cylindrical waveguide step chamber butt joint body 2 and staircase match cavity 1
In docking operation, because the agent structure of cylindrical waveguide step chamber butt joint body 2 is connected what is formed for abutted flange with chassis is docked
The structure of cylindrical waveguide step chamber 16, and abutted flange is less than cylindrical waveguide step chamber butt joint body 2 with the distance between chassis is docked
The length of the mounting screw 9 for using is docked with staircase match cavity 1, therefore for the ease of carrying out cylindrical waveguide step chamber butt joint body 2
Docking between staircase match cavity 1, reduces both installation difficulty, it is preferred that referring to figs. 2 and 3, in the present embodiment,
It is further opened with that transitional pore 11 is installed on the docking chassis of cylindrical waveguide step chamber butt joint body 2.Wherein, the number of installation transitional pore 11 is
Two, and respectively in the symmetrical center line of rotary steering groove 13.Thus, cylindrical waveguide step chamber butt joint body 2 and rank are being carried out
During the slitless connection of ladder matching cavity 1, the handle of a knife of torque screwdrivers need to only be docked from bottom through cylindrical waveguide step chamber respectively
The rotary steering groove 13 and installation transitional pore 11 of body 2, and then mounting screw 9 is inserted the mounting hole and ladder of abutted flange again
The installation of abutted flange on staircase match cavity 1 is completed by being screwed in mounting groove with cavity 1.
Further, with reference to Fig. 4 to Fig. 7, the slitless connection between staircase match cavity 1 and electromagnetic sealing end cap 6 is then
Realized again by chimeric mode.Specifically, first, with reference to Fig. 4 and Fig. 5, staircase match cavity 1 and radio frequency connector 7
Kidney-shaped groove 18 is offered on the side wall being connected.The bottom surface of electromagnetic sealing end cap 6 is provided with kidney-shaped briquetting 24, kidney-shaped briquetting 24
It is positioned at the front end of electromagnetic sealing end cap 6 and corresponding with kidney-shaped groove 18.Also, the bottom of kidney-shaped briquetting 24 and kidney-shaped groove 18
Portion mutually overlaps.Wherein, the bottom surface of electromagnetic sealing end cap 6 is：One side of the electromagnetic sealing end cap 6 towards staircase match cavity 1.Electromagnetism
The front end of end cover 6 is：Electromagnetic sealing end cap 6 is adjacent to one end of radio frequency connector 7.Herein also, it should be noted that kidney-shaped
The thickness of briquetting 24 is preferably 1mm ± 0.5mm.Meanwhile, in the present embodiment, the bottom surface of electromagnetic sealing end cap 6 is additionally provided with electricity
Magnetic seal parting bead 20, electromagnetic sealing parting bead 20 is located at the both sides of kidney-shaped briquetting 24.Accordingly, staircase match cavity 1 is towards electromagnetism
One end of end cover 6 offers electromagnetic sealing groove 19, and electromagnetic sealing groove 19 is corresponding with electromagnetic sealing parting bead 20, and electromagnetism
Seal groove 19 is mutually chimeric with electromagnetic sealing parting bead 20.
Also, Fig. 6 and Fig. 7 is referred to, the bottom surface of electromagnetic sealing end cap 6 is additionally provided with boss 23, it is preferred that the boss 23 is
L-shaped boss, and the boss 23 is located at the rear end of the bottom surface of electromagnetic sealing end cap 6.Accordingly, staircase match cavity 1 is towards electricity
One end relative set fluted 21 of magnetic seal end cap 6, the groove 21 is preferably stepped recesses.Also, groove 21 and boss 23
It is engaged.
Thus, it is by the bottom section of the platypelloid type kidney-shaped groove 18 in staircase match cavity 1, along fourth stage rectangle
Waveguide cavity (that is, rectangular step chamber 10 of the staircase match cavity 1 towards the side of electromagnetic sealing end cap 6) leptoprosopy both sides set electromagnetism
Seal groove 19, tail end side design stepped recesses 21 of the fourth stage square wave guide cavity face loose near micro-strip substrate 4.Accordingly, exist
The bottom of electromagnetic sealing end cap 6, designs close with the symmetrical electromagnetism of square wave guide cavity along fourth stage square wave guide cavity leptoprosopy both sides
Packing bar 20, and in the bottom end edge region design L-shaped boss 23 of electromagnetic sealing end cap 6, with the step on staircase match cavity 1
Groove 21 coordinates overlap joint.So that staircase match cavity 1 can be realized with each side of electromagnetic sealing end cap 6 it is seamless right
Connect, it is ensured that zero gap structure between the two.
Wherein, after welding of the inner wire 12 with micro-strip substrate 4 is completed, using the staircase match chamber of above-mentioned docking structure
When body 1 carries out slitless connection with electromagnetic sealing end cap 6, by the electromagnetic sealing parting bead 20 of electromagnetic sealing end cap 6 along staircase match
The electromagnetic sealing groove 19 of set both sides on cavity 1, overlaps, together to kidney-shaped briquetting 24 and the bottom of platypelloid type kidney-shaped groove 18
When, L-shaped boss 23 is mutually overlapped with the front-back of stepped recesses 21 and is capable of achieving 6 liang of staircase match cavity 1 and electromagnetic sealing end cap
The slitless connection of person, it is simple to operate, and also effectively increase the accuracy of assembling.
Further, installation of the micro-strip substrate 4 between staircase match cavity 1 and electromagnetic sealing end cap 6 can then pass through
Sintering processing is realized.Specifically, with reference to Fig. 7, the bottom in rectangular step chamber 10 and kidney-shaped groove 18 in staircase match cavity 1
Interior insert-type groove 22 is offered at orthogonal area, cross section of the interior insert-type groove 22 across rectangular step chamber 10；Micro-strip substrate 4
Direct sintering is in interior insert-type groove 22.
In addition, also, it should be noted that in the present embodiment, radio frequency connector 7 is arranged on staircase match cavity 1 and electromagnetism
When on the lateral wall of end cover 6, in order to reinforce its mounting structure, thread connecting mode can be used, no longer be repeated herein.
Wherein, for the high matched and reliability of the clearer waveguide coaxial converter for illustrating the present embodiment, with
The lower waveguide coaxial converter used described in the present embodiment is to carry out S parameter characteristic test：Mainly comprising insertion loss (IL) and
Return loss (RL), is using the batch testing S parameter of the waveguide coaxial converter described in the present embodiment with reference to Figure 11 and Figure 12
Indicatrix.From Figure 11 and Figure 12, the insertion loss (IL) of the waveguide coaxial converter of the present embodiment is in the effective frequency ranges of Ka
Interior energy reaches in the industry higher level of the absolute value less than or equal to 0.068dB, the clawback loss equally in the effective working frequency range of Ka
(RL) higher level less than or equal to -24.13dB can be reached, the design and batch product performance indications for then preferably completing product will
Ask.
Although the various embodiments with reference to the disclosure have shown and described the disclosure, those skilled in the art will manage
Solution, in the case where the spirit and scope of the present disclosure being defined by the appended claims and the equivalents thereof are not departed from, can enter to it
Various changes in row form and details.
Claims (14)
1. a kind of waveguide coaxial converter, it is characterised in that including interface end, cylindrical waveguide step chamber butt joint body, staircase match chamber
Body, micro-strip substrate, electromagnetic sealing end cap and radio frequency connector；
The interface end, cylindrical waveguide step chamber butt joint body, junctor matching cavity, the micro-strip substrate and the electromagnetism
End cover is docked step by step；
The radio frequency connector is arranged on the lateral wall of the electromagnetic sealing end cap and the staircase match cavity；
The staircase match cavity is the integrated design, with multistage rectangular step chamber；
Between cylindrical waveguide step chamber butt joint body and the staircase match cavity to being connected in seamless fitting connection, the ladder
Matching cavity and the electromagnetic sealing end cap between to being connected in seamless connection；
The micro-strip substrate is arranged between the staircase match cavity and the electromagnetic sealing end cap, and across the ladder
With the rectangular step chamber in cavity.
2. waveguide coaxial converter as claimed in claim 1, it is characterised in that there is quadrupole moment in the staircase match cavity
Shape stepped cavity；And
Often the ladder height between adjacent two-stage rectangular step chamber is：3.5mm—4.8mm.
3. waveguide coaxial converter as claimed in claim 2, it is characterised in that the rectangular step chamber is round rectangle ladder
Chamber, and the radius of corner of the round rectangle stepped cavity at different levels is 0.6mm.
4. waveguide coaxial converter as claimed in claim 2, it is characterised in that by the cavity bottom surface of the staircase match cavity
It is 30mm -32mm to the depth between the top surface of the electromagnetic sealing end cap.
5. waveguide coaxial converter as claimed in claim 1, it is characterised in that it is right that cylindrical waveguide step chamber butt joint body includes
Acting flange and docking chassis；
The abutted flange is connected with the docking chassis；And
The abutted flange offers annular groove towards the one side of the staircase match cavity；
The staircase match cavity is provided with annular boss towards the one side of cylindrical waveguide step chamber butt joint body；
The annular boss is mutually chimeric with the annular groove.
6. waveguide coaxial converter as claimed in claim 5, it is characterised in that the height of the annular boss be 1.25mm-
1.65mm, width is 1.05mm -1.45mm.
7. waveguide coaxial converter as claimed in claim 5, it is characterised in that multiple installations are offered on the abutted flange
Hole, the mounting hole scattering device is in the periphery of the annular groove；And
The staircase match cavity accordingly offers multiple mounting grooves towards the one side of cylindrical waveguide step chamber butt joint body, described
Mounting groove is corresponded with the mounting hole；
The abutted flange passes through the mounting hole and the mounting groove pretension with the staircase match cavity by mounting screw
Connection.
8. the waveguide coaxial converter as described in claim 5 or 7, it is characterised in that offer rotation on the docking chassis
Gathering sill；The number of the rotary steering groove is two, and is symmetrical arranged；
The two ends of the rotary steering groove are respectively arranged with the spacing heavy platform of cylindricality；
Locking of the docking chassis with the interface end by separate space lock-screw on the spacing heavy platform of the cylindricality is consolidated
Fixed connection.
9. waveguide coaxial converter as claimed in claim 8, it is characterised in that be further opened with installing on the docking chassis
Cross hole；
The number for installing transitional pore is two, and respectively in the symmetrical center line of the rotary steering groove.
10. waveguide coaxial converter as claimed in claim 1, it is characterised in that the staircase match cavity and the radio frequency
Kidney-shaped groove is offered on the side wall that connector is connected；
The bottom surface of the electromagnetic sealing end cap is provided with kidney-shaped briquetting, before the kidney-shaped briquetting is located at the electromagnetic sealing end cap
End, and it is corresponding with the kidney-shaped groove；And
The kidney-shaped briquetting is mutually overlapped with the bottom of the kidney-shaped groove；
Wherein, the bottom surface of the electromagnetic sealing end cap is：One side of the electromagnetic sealing end cap towards the staircase match cavity；
The front end of the electromagnetic sealing end cap is：The electromagnetic sealing end cap is adjacent to one end of the radio frequency connector.
11. waveguide coaxial converters as claimed in claim 10, it is characterised in that the bottom surface of the electromagnetic sealing end cap also sets
Electromagnetic sealing parting bead is equipped with, the electromagnetic sealing parting bead is located at the both sides of the kidney-shaped briquetting；
The staircase match cavity offers electromagnetic sealing groove, the electromagnetic sealing groove towards one end of the electromagnetic sealing end cap
It is corresponding with the electromagnetic sealing parting bead；And
The electromagnetic sealing groove is mutually chimeric with the electromagnetic sealing parting bead.
12. waveguide coaxial converters as claimed in claim 10, it is characterised in that the bottom surface of the electromagnetic sealing end cap also sets
Boss is equipped with, the boss is located at the rear end of the bottom surface of the electromagnetic sealing end cap；
The staircase match cavity is fluted towards one end relative set of the electromagnetic sealing end cap；
The groove is engaged with the boss.
13. waveguide coaxial converters as claimed in claim 12, it is characterised in that the boss is L-shaped boss, the groove
It is stepped recesses.
14. waveguide coaxial converters as claimed in claim 10, it is characterised in that the rectangle rank in the staircase match cavity
Interior insert-type groove is offered at terraced chamber and the bottom orthogonal area of the kidney-shaped groove；
Cross section of the interior insert-type groove across the rectangular step chamber；
The micro-strip substrate is sintered in the interior insert-type groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611200610.1A CN106785286B (en) | 2016-12-22 | 2016-12-22 | Waveguide coaxial converter |
Applications Claiming Priority (1)
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| CN107331931A (en) * | 2017-09-04 | 2017-11-07 | 江苏贝孚德通讯科技股份有限公司 | A kind of waveguide probe coupler |
| CN107946715A (en) * | 2017-10-27 | 2018-04-20 | 中国人民解放军国防科技大学 | Waveguide coaxial converter for microwave plasma enhanced chemical vapor deposition |
| CN110676551A (en) * | 2019-09-23 | 2020-01-10 | 博微太赫兹信息科技有限公司 | Microstrip coaxial conversion structure with air cavity and interconnection method thereof |
| CN112421198A (en) * | 2020-11-19 | 2021-02-26 | 无锡市雷华科技有限公司 | Multi-path waveguide coaxial conversion array device for Ka waveband |
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| CN107331931A (en) * | 2017-09-04 | 2017-11-07 | 江苏贝孚德通讯科技股份有限公司 | A kind of waveguide probe coupler |
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| CN107946715B (en) * | 2017-10-27 | 2019-12-27 | 中国人民解放军国防科技大学 | Waveguide coaxial converter for microwave plasma enhanced chemical vapor deposition |
| CN110676551A (en) * | 2019-09-23 | 2020-01-10 | 博微太赫兹信息科技有限公司 | Microstrip coaxial conversion structure with air cavity and interconnection method thereof |
| CN112421198A (en) * | 2020-11-19 | 2021-02-26 | 无锡市雷华科技有限公司 | Multi-path waveguide coaxial conversion array device for Ka waveband |
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