CN107508015A - Circular waveguide mode converter - Google Patents
Circular waveguide mode converter Download PDFInfo
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- CN107508015A CN107508015A CN201710670280.0A CN201710670280A CN107508015A CN 107508015 A CN107508015 A CN 107508015A CN 201710670280 A CN201710670280 A CN 201710670280A CN 107508015 A CN107508015 A CN 107508015A
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- circular waveguide
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- semicircle
- bending section
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/16—Auxiliary devices for mode selection, e.g. mode suppression or mode promotion; for mode conversion
Abstract
The present invention relates to microwave mode converter.The invention discloses a kind of circular waveguide mode converter, including diameter equal the top circular waveguide and end circular waveguide on same axis, the transformation segment waveguide of same diameter is connected between the top circular waveguide and end circular waveguide；The transformation segment waveguide is made up of the semicircle straight wave guide and semicircle waveguide bend of same diameter；The semicircle straight wave guide and top circular waveguide and end circular waveguide are coaxial；Semicircle straight wave guide and semicircle the waveguide bend both ends are alignd and are connected with top circular waveguide and end circular waveguide, and semicircle straight wave guide and semicircle the waveguide bend string side is on same flat board；The axis is located on the flat board；Microwave transmission path is longer compared to semicircle straight wave guide in the semicircle waveguide bend so that the microwave phase difference transmitted by semicircle straight wave guide and semicircle waveguide bend is π.The present invention has obvious power capacity advantage under the same conditions, and structure is compacter, and space-consuming can be obviously reduced.
Description
Technical field
The present invention relates to microwave mode converter technology field, the particularly coaxial transducer type of input/output port,
More particularly to a kind of circular waveguide mode converter.
Background technology
Mode converter is one of a kind of common microwave system device, and transmission mode of the microwave in leading waveguide has more
Kind is various, such as TEM mode, TE patterns, TM patterns, different transmission modes have the characteristics of different while coordinate specific environment
It is required that work.Many microwave sources produce the symmetrical TEM and TM0n of circle and (also write TM in High Power Microwave System0n) pattern, such as magnetic
Insulate line oscillator (MILO), Virtual Cathode Oscillators (Vircator) and backward wave oscillator (BWO) etc..These Para-varicose modes are straight
It is hollow wave beam to connect obtained during radiation, and gain in the axial direction is very low, is unfavorable for effect of the wave beam to target.This
Outside, some (also write TM using transmission TM0101) circular waveguide of pattern is converted into antenna of the coaxial configuration in order to feed, such as
RADIAL feeds helical array antenna, it is necessary to which (circular waveguide TE11 is also write into TE11) patten transformation is into TM01 patterns.This explanation,
Circular waveguide TE11-TM01 mode converters are a kind of widely used devices, and its quality designed will significantly affect microwave system
Work.
The converter changed mutually to involved both of which has the conversion method of diversified forms, and this device is in index side
Face, which is typically compared, focuses on its matching, loss, conversion ratio etc., when being limited by specific application conditions also to contour structures, size,
Power capacity requires.Both of which each the characteristics of and conversion rule have a significant impact to the structure of converter, according to defeated
Enter the whether coaxial classification of output port, common for curved waveguide form, the pattern in waveguide theory under non co axial classification
Coupled wave theory has very strong directive function to the conversion designs of this mode, due to simple in construction and all metal structures, institute
Have very high power capacity with this kind of conversion regime, shortcoming is will to take substantial amounts of lateral space, can not accomplish it is compact, and
So that the position of output port will also be determined [Shiwen Yang and Hongfu Li, " by the position of converter
Optimization of novel high-power millimeter-wave TM01-TE 11mode converters,"
in IEEE Transactions on Microwave Theory and Techniques,vol.45,no.4,pp.552-
554,Apr 1997.]、[B.M.Lee,W.S.Lee,Y.J.Yoon and J.H.So,"X-band TM01-TE11mode
converter with short length for high power,"in Electronic Letters,vol.40,
no.18,pp.1126-1127,2Sept.2004.]。
And the way under coaxial classification be by circular waveguide be converted to other forms waveguide reprocess, such as be divided into two it is right
The half-circle area of title, then change the propagation constant of one of them.King's winter et al. is built into coaxial transition zone in circular waveguide and is separated into
Two regions, using photon crystal structure to 180 ° of one of area change its output phase, circle is synthesized after transition zone
Pattern TE11-TM01 conversion is completed in waveguide.Be limited to the structure of photonic crystal, the conversion ratio band merit under this structure with
And power capacity is not too preferable.[king's winter, Xu Sha, Cao Yanwei, Qin Fen photonic crystal High-Power Microwave mode converters are set
Meter [J] Acta Physica Sinicas, 2014, (01)：374-379.]
Using Filled Dielectrics come to change propagation constant be also a kind of Basic practice to microwave transmission, but this way one
As for, due to the problems such as microwave reflection of differing dielectric constant dielectric interface, dielectric loss is larger be present, be restricted for
The not high occasion of some index requests.A.Chittora have studied a kind of method for being placed in parallel medium with waveguide axis direction,
Equally it is to belong to circular waveguide is divided into two and half circular waveguides and changes the propagation constant of one of them, optimizes one to a certain extent
The problem of using the change propagation constant of medium a bit, but bandwidth and breakdown threshold are smaller.[A.Chittora,S.Singh,
A.Sharma and J.Mukherjee,"A Novel TM01to TE11Mode Converter Designed With
Radially Loaded Dielectric Slabs,"in IEEE Transactions on Microwave Theory
and Techniques,vol.64,no.4,pp.1170-1175,April2016.]
Yuan Chengwei describes a kind of very short conversion method of axial length, and circular waveguide is converted to an asymmetric footpath of bilayer
To waveguide, the phase on each road is controlled according to the transmission path difference of every side.Because the converter belongs to all-metal construction, have
Good high power capacity design basis, the simply conversion of RADIAL belong to stronger structural mutation and excessively narrow transmission
Passage limits this advantage so that final power capacity is not very good, while its be not suitable for yet it is some not
The occasion of horizontal space can significantly be taken.[Yuan Chengwei, clock is brilliant, Zhang Jiande, the compact circularly-polarized mode converters of Qian Baoliang
[J] light lasers and the particle beams, 2009, (03):411-415.]
The method that R.L.Eisenhart is used is to be introduced into coaxial transition, the bore of controlling transmission in transfer process,
Disappeared after inner wire is connected with square wave guide wall, then will be faded to perpendicular to rectangular waveguide by the electric field perpendicular to inner wire
Electric field, i.e. rectangular waveguide is finally transitioned into conversion of the circular waveguide to just acquisition model, transfer process therein by TE10 patterns
For TM01-TEM-TE10-TE11, corresponding waveguide is circular waveguide-coaxial waveguide-rectangular waveguide-circular waveguide.Although wherein it is complete
Metal structure, but power capacity metal slit occurs in coaxial waveguide to the position that rectangular waveguide is changed, field strength increase and
Limit power capacity.[R.L.Eisenhart,"A novel wideband TM01-to-TE11mode converter,"
1998IEEE MTT-S International Microwave Symposium Digest(Cat.No.98CH36192),
Baltimore,MD,USA,1998,pp.249-252vol.1.]
As can be seen here, non co axial formula circular waveguide TE11-TM01 mode converter space-consumings are big, are unfavorable for the small-sized of product
Change；And close coupled type mode converter then due in implementation the problem of cause power capacity index to have larger gap with the former.
The content of the invention
It is an object of the invention to provide a kind of coaxial circular waveguide TE11-TM01 mode converters of input and output port,
Mode converter power capacity and bandwidth are improved, reduces loss.
To achieve these goals, according to the one side of the specific embodiment of the invention, there is provided a kind of circular waveguide mould
Formula converter, including diameter equal the top circular waveguide and end circular waveguide on same axis, the top circular waveguide and
The transformation segment waveguide of same diameter is connected between the circular waveguide of end；It is characterized in that：The transformation segment waveguide is by same diameter
Semicircle straight wave guide and semicircle waveguide bend are formed；The semicircle straight wave guide and top circular waveguide and end circular waveguide are coaxial；Described half
Circle straight wave guide and semicircle waveguide bend both ends are alignd and are connected with top circular waveguide and end circular waveguide, the semicircle straight wave guide and half
Corner bevelling waveguide string side is on same flat board；The axis is located on the flat board；Microwave transmission path in the semicircle waveguide bend
It is longer compared to semicircle straight wave guide so that the microwave phase difference transmitted by semicircle straight wave guide and semicircle waveguide bend is π.
Further：The slab length is less than the length of semicircle straight wave guide.
Further：Pin is provided with the end circular waveguide, the pin is located on the axis and runs through end
Circular waveguide.
Further：The pin is vertical with the flat board.
Further：The circular waveguide converter is placed in containment vessel.
Further：The containment vessel is connected with flat board.
Further：The circular waveguide converter is made up of metalwork.
Further：It is vacuum or filling air dielectric in the circular waveguide converter cavity.
Further：The circular waveguide converter is TE11-TM01 mode converters or TM01-TE11 mode converters.
Specifically：The semicircle waveguide bend includes the first bending section, the second bending section, straight section, the 3rd bending section and the 4th
Bending section；First bending section is connected with top circular waveguide, bends θ1It is connected afterwards with the second bending section, second bending section
θ is bent round about2It is connected afterwards with straight section, the straight section is connected with the 3rd bending section, the 3rd bending section and the 4th curved
Tune is connected, and the 4th bending section is connected with end circular waveguide；Second bending section is identical with the 3rd bending section shape, puts
Put in opposite direction；First bending section is identical with the 4th bending section shape, and placement direction is opposite；Wherein, 0 ＜ θ1＜ π, 0 ＜ θ2
＜ π.
The beneficial effects of the invention are as follows：For the coaxial TE11-TM01 mode converters of input/output port, the present invention exists
There is obvious power capacity advantage under the same terms.And for the similar converter of input/output port non co axial, present invention knot
Structure is compacter, and space-consuming can be obviously reduced.Further, the addition of pin overall to adjusting means in the present invention
Equipped with positive effect, bandwidth and conversion ratio are improved；All-metal part design reduces loss.
Brief description of the drawings
The accompanying drawing for forming the part of the application is used for providing a further understanding of the present invention, specific implementation of the invention
Mode, schematic description and description are used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is Circular waveguides schematic diagram；
Fig. 2 is half Circular waveguides schematic diagram；
Fig. 3 is the circular waveguide mode converter structural representation of embodiment 1；
Fig. 4 is Fig. 3 right view；
Fig. 5 is Fig. 3 rearview；
Fig. 6 is Fig. 3 top view；
Fig. 7 is the physical dimension schematic diagram of embodiment 2；
Fig. 8 is Fig. 7 right view；
Fig. 9 is the slab construction scale diagrams of embodiment 2；
Figure 10 is Fig. 9 right view；
Figure 11 is the pin feature scale diagrams of embodiment 2；
Figure 12 is the circular waveguide mode converter transmission curve simulation result schematic diagram of embodiment 2.
Wherein：
4 be flat board；
5 be pin；
7 be containment vessel；
10 be top circular waveguide；
20 be end circular waveguide；
30 be transformation segment waveguide；
31 be semicircle straight wave guide；
32 be semicircle waveguide bend；
100 be the arc side of half circular waveguide；
200 be the string side of half circular waveguide；
321 be the first bending section；
322 be the second bending section；
323 be straight section；
324 be the 3rd bending section；
325 be the 4th bending section.
Embodiment
It should be noted that in the case where not conflicting, embodiment, embodiment in the application and therein
Feature can be mutually combined.Let us now refer to the figures and combine herein below and describe the present invention in detail.
In order that those skilled in the art are better understood from the present invention program, below in conjunction with specific embodiment party of the present invention
Accompanying drawing in formula, embodiment, clear, complete description is carried out to the technical scheme in the specific embodiment of the invention, embodiment,
Obviously, described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Based in the present invention
Embodiment, embodiment, the institute that those of ordinary skill in the art are obtained on the premise of creative work is not made
There are other embodiment, embodiment, should all belong to the scope of protection of the invention.
Waveguide is a kind of microwave transmission line, and most common waveguide form is a metal pipe, and section is usually rule
Geometry, such as circular, rectangle.Two kinds of waveguides of the present invention：Circular waveguide and half circular waveguide, structure such as Fig. 1 and Fig. 2 institutes
Show.The cross sectional shape of circular waveguide is circle, referring to Fig. 1.Semicircle waveguide sections are shaped as semicircle, by arc in 100 chord 200
Both ends connect composition, as shown in Figure 2.Circular waveguide and half circular waveguide typically use conductive material, such as metal material (aluminium, copper, steel
Deng) be made.According to the characteristics of microwave transmission, the characteristic of circular waveguide and half circular waveguide is mainly determined by its diameter, with material thickness
Unrelated, waveguide length represents the distance of microwave transmission.In addition to linear pattern waveguide, the waveguide of also various curved shapes, point
It is also known as straight wave guide and waveguide bend.The angle of bend of waveguide bend, radius of turn, curved shape etc. may all change microwave transmission side
To parameters such as, paths, so as to change microwave propagation constant, the work(such as various delay lines, coupler, oscillator are can be designed that accordingly
Can part.
Herein to the TE11 modes microwaves and TM01 modes microwaves that are transmitted in waveguide, also referred to as TE11 ripples and TM01 sometimes
Ripple.
Embodiment 1
Shown in this example circular waveguide mode converter structure chart 3, Fig. 4, Fig. 5 and Fig. 6.When TE11 ripples enter from top circular waveguide 10
Enter converter, what end circular waveguide came out is TM01 ripples.Conversely, when TM01 ripples enter converter, top from end circular waveguide 20
What circular waveguide 10 came out is then TE11 ripples.That is, this example circular waveguide converter both can be TE11-TM01 patten transformations
Device or TM01-TE11 mode converters, TM01 and TE11 mutual conversion can be completed.
This example circular waveguide mode converter structure, including the equal top circular waveguide 10 of diameter and end on same axis
The transformation segment waveguide 30 of the same diameter connected between end circular waveguide 20, and top circular waveguide and end circular waveguide.Referring to figure
3rd, Fig. 5 and Fig. 6, the part between its middle conductor i and j are exactly transformation segment waveguide 30.
This example transformation segment waveguide 30 is formed and formed side by side by diameter identical semicircle straight wave guide 31 and semicircle waveguide bend 32, such as
Shown in Fig. 4.Semicircle straight wave guide 31 and top circular waveguide 10 and end circular waveguide 20 are coaxial, as shown in OP in Fig. 5, Fig. 6.Semicircle is straight
Waveguide 31 and the both ends of semicircle waveguide bend 32 are alignd and connect top circular waveguide 10 and end circular waveguide 20, junction Fig. 3, Fig. 5
At i, j in Fig. 6.The string side of semicircle straight wave guide 31 and semicircle waveguide bend 32 is all on flat board 4, referring to Fig. 4.Semicircle straight wave guide
31st, the common axis line OP of top circular waveguide 10 and end circular waveguide 20 is located on flat board 4, as shown in Figure 5, Figure 6.Due to half corner bevelling
Microwave transmission path is cranky in waveguide 32, and microwave transmission path is longer compared to semicircle straight wave guide 31 so that passes through semicircle
The microwave phase difference that straight wave guide 31 and semicircle waveguide bend 32 transmit is π.
As shown in figure 3, this example semicircle waveguide bend 32 wriggles into S types, five sections are divided into dotted line in Fig. 3：First bending section
321st, the second bending section 322, straight section the 323, the 3rd bend 324 sections and the 4th bending section 325.
The bending section 321 of this example semicircle waveguide bend 32 first is connected with top circular waveguide 10, and dotted line i is interface position in Fig. 3
Put, as seen from Figure 5, semicircle straight wave guide 31 and the interface position of top circular waveguide 10 are also at dotted line i.As shown in figure 3, the first bending
Section 321 is bent upwards θ1It is connected afterwards with the second bending section 322, the second bending section 322 is bent downwardly θ2It is connected afterwards with straight section 323, directly
Section 323 is connected with the 3rd bending section 324, and the 3rd bending section 324 is bent upwards θ2It is connected afterwards with the 4th bending section 325, the 4th is curved
Tune 325 is bent downwardly θ1It is connected to afterwards with end circular waveguide 20 at dotted line j.Likewise, semicircle straight wave guide 31 and end circle ripple
Lead 20 link position also at dotted line j, as shown in Figure 5.As seen from Figure 3, in this example semicircle waveguide bend 32, the first bending
Section 321 is identical with the shape of the 4th bending section 325, and placement direction is on the contrary, the second bending section 322 and the shape phase of the 3rd bending section 324
Together, placement direction is opposite.Angle of bend θ in this example1And θ2Scope is：0 ＜ θ1＜ π, 0 ＜ θ2＜ π, and 2 θ1=θ2.This example
One bending section 321,324 sections of the second bending section the 322, the 3rd bending are identical with the radius of turn of the 4th bending section 325.
This curved shape of this example converter semicircle waveguide bend and structure, converter volume is advantageously reduced, improve space
Utilization rate.This example converter can be by adjusting angle of bend θ1And θ2Value, and radius of turn, can very easily it control
Microwave phase processed, ensure that the microwave phase difference that semicircle straight wave guide 31 and semicircle waveguide bend 32 transmit is π.By Fig. 3, Fig. 4, Fig. 5 and
Fig. 6, which can be seen that this structure of this example mode converter, has many identical structural parameters, such as radius of turn and shape
Deng greatly reducing the complexity of mould, be very beneficial for reducing production cost and ensure machining angle.Full of twists and turns S types
Curved shape, greatly reduces the space of mode converter occupancy, and product structure is more compact compact.
As seen from Figure 6, the length of this example flat board 4 is less than the length of semicircle straight wave guide 31, that is, in transformation segment waveguide 30
Flat board 4 does not contact top circular waveguide 10 and end circular waveguide 20, there is the distance that a segment length is d3 respectively therebetween.Distance d3
Although very small, it is divided into two-way into transformation segment waveguide 30 in microwave, and microwave leaves transformation segment waveguide 30 and synthesized all the way
When, there is one section of small changeover portion.The end of flat board 4 is advantageously reduced on influence caused by microwave transmission, is advantageously reduced
Microwave reflection and transmission loss.
In order to improve bandwidth and conversion ratio, while converter whole matching is also beneficial to, this example is on end circular waveguide 20
Pin 5 is provided with, this example pin 5 is located on axes O P and runs through end circular waveguide 20, and pin 5 is vertical with flat board 4.It is this
Configuration structure, the intervention effect of pin can be significantly improved, improves matching effect, as shown in Figure 3 and Figure 5.
This example converter can very easily be adjusted by adjusting the diameter of pin 5 and the distance apart from transformation segment 30
Whole converter parameters, to obtain preferable performance.
This example converter, the characteristics of requiring to change propagation constant in being changed according to two kinds of microwave modes, circular waveguide is divided equally
For two and half circular waveguides, one of them half circular waveguide is handled, artificially postpones its phase.All using metal in design
Part, and make every effort to gentle, compact in structure change and performance and agree with the demand of being widely applied to improve.
This example converter operation principle is：After top circular waveguide input TE11 patterns, in transformation segment waveguide 30, flat board 4 will
Circular waveguide is averagely cut into two and half circular waveguides --- semicircle straight wave guide 31 and semicircle waveguide bend 32.Microwave in semicircle straight wave guide 31
Transmission direction is constant, and it is in " S " type forward that semicircle waveguide bend 32, which wriggles,.Based on symmetric design, axle is pointed in the end of semicircle waveguide bend 32
Line overlaps with top circular waveguide axis.In this process, the opposite semicircle straight wave guide 31 of semicircle waveguide bend 32 is due to reaching end
Longer distance is extended when holding circular waveguide, can be conditioned by the structural parameters phase difference for adjusting semicircle waveguide bend,
When phase difference is 180 °, patten transformation is achieved that.Finally, two halves circular waveguide is reunited into a circular waveguide --- end
Circular waveguide 20.Due to adding pin perpendicular to the direction of flat board 4, axes O P, it can be used for regulation matching.The patten transformation
Device is reversible, thus reversely input TM01 modes microwaves can obtain TE11 modes microwaves, realize TM01 modes microwaves and
The mutual conversion of TE11 modes microwaves.
Embodiment 2
Referring to Fig. 7~Figure 11, this example converter is placed in containment vessel 7, is advantageous to improve converter structure intensity, is also allowed for
Processing and fabricating.The present invention does not require for the shape of containment vessel, and the containment vessel shown in figure is that rectangular configuration is only one
Kind is easy to the example of processing.For the ease of processing, this example containment vessel 7 is made up of two planform identical housing make-ups, such as
Shown in Fig. 8.
This example converter operating frequency is 12.67GHz, and the size marked in Fig. 7~Figure 11 is as shown in table 1, wherein：θ1For
First bending section angle of bend；θ2For the second bending section angle of bend；θ3For the 3rd bending section angle of bend；θ4For the 4th bending
Section angle of bend；d1For straight section length；d2For the distance of pin and transformation segment；d3Be top circular waveguide or end circular waveguide with it is flat
The distance of plate；d4For sheet width；d5For slab length；d6For length of pin, that is, the diameter of end circular waveguide；D1For pin
Follow closely diameter；R1For the outer arc radius of each bending section of semicircle waveguide bend；R2For the interior arc radius of each bending section of semicircle waveguide bend；R3For
The radius of top circular waveguide, and the radius of this example end circular waveguide, semicircle straight wave guide and semicircle waveguide bend；T is slab-thickness.
The width of this example flat board 4 extends to be connected with containment vessel, can further enhance the stability of converter.
This example circular waveguide converter is all formed using metalwork.
This example circular waveguide converter cavity is vacuum (no Filled Dielectrics), can further reduce microwave transmission loss.
This all-metal construction of this example without media converter, advantageously reduce loss and cost, reduce converter structure
Complexity.
This example converter other structures referring to embodiment 1 description.
It is as shown in figure 12 that this example converter corresponds to S parameter simulation result, shows：
In 12.1GHz to 13.5GHz frequency bands, the converter conversion efficiency is more than 95%, the relative bandwidth under the index
Reach 11%.Under the working frequency 12.67GHz of design, mode transformation ratio 99.3%.This example converter field strength distribution emulates
As a result show, before and after transformation segment 30, the microwave phase in the circular waveguide 32 of bending half of top half has lagged 180 °.Most
Big field strength is 3776V/m, it is assumed that in input power 0.5W, while during using breakdown threshold in air, power capacity P calculates knot
Fruit is：
Table 1
| Parameter | θ1 | θ2 | θ3 | θ4 | d1 | d2 | d3 | d4 |
| Value | 50° | 100° | 100° | 50° | 14.9mm | 6.5mm | 1.57mm | 48.5mm |
| Parameter | d5 | d6 | D1 | R1 | R2 | R3 | t | |
| Value | 80mm | 21.6mm | 2mm | 26.8mm | 5.2mm | 10.8mm | 1.4mm |
The analog-digital converter of the present invention, can pass through each size in reasonable selection table 1 according to different working frequencies
The numeral of parameter, the microwave phase difference for realizing semicircle straight wave guide and the transmission of semicircle waveguide bend is π, meets the design of mode converter
It is required that.Certainly, using other curved shapes it is also possible that semicircle straight wave guide and the microwave phase of semicircle waveguide bend transmission
Difference is π.
Claims (10)
1. circular waveguide mode converter, including diameter equal the top circular waveguide and end circular waveguide on same axis, institute
State the transformation segment waveguide that same diameter is connected between top circular waveguide and end circular waveguide；It is characterized in that：The transformation segment ripple
Lead and be made up of the semicircle straight wave guide and semicircle waveguide bend of same diameter；The semicircle straight wave guide and top circular waveguide and end circle ripple
Lead coaxial；Semicircle straight wave guide and semicircle the waveguide bend both ends are alignd and are connected with top circular waveguide and end circular waveguide, described
Semicircle straight wave guide and semicircle waveguide bend string side are on same flat board；The axis is located on the flat board；The semicircle waveguide bend
Middle microwave transmission path is longer compared to semicircle straight wave guide so that the microwave phase transmitted by semicircle straight wave guide and semicircle waveguide bend
Potential difference is π.
2. circular waveguide mode converter according to claim 1, it is characterised in that：The slab length is less than the straight ripple of semicircle
The length led.
3. circular waveguide mode converter according to claim 1, it is characterised in that：Pin is provided with the end circular waveguide
Nail, the pin are located on the axis and run through end circular waveguide.
4. circular waveguide mode converter according to claim 3, it is characterised in that：The pin is vertical with the flat board.
5. circular waveguide mode converter according to claim 1, it is characterised in that：The circular waveguide converter is placed in protection
In shell.
6. circular waveguide mode converter according to claim 5, it is characterised in that：The containment vessel is connected with flat board.
7. circular waveguide mode converter according to claim 1, it is characterised in that：The circular waveguide converter is by metalwork
Form.
8. circular waveguide mode converter according to claim 7, it is characterised in that：It is in the circular waveguide converter cavity
Vacuum or filling air dielectric.
9. circular waveguide mode converter according to claim 1, it is characterised in that：The circular waveguide converter is TE11-
TM01 mode converters or TM01-TE11 mode converters.
10. according to the circular waveguide mode converter described in above-mentioned any one claim, it is characterised in that：The half corner bevelling ripple
Lead including the first bending section, the second bending section, straight section, the 3rd bending section and the 4th bending section；First bending section and top
Circular waveguide connects, and bends θ1It is connected afterwards with the second bending section, second bending section bends θ round about2Connect afterwards with straight section
Connect, the straight section is connected with the 3rd bending section, and the 3rd bending section is connected with the 4th bending section, the 4th bending section and end
Hold circular waveguide connection；Second bending section is identical with the 3rd bending section shape, and placement direction is opposite；First bending section with
4th bending section shape is identical, and placement direction is opposite；Wherein, 0 ＜ θ1＜ π, 0 ＜ θ2＜ π.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110048204A (en) * | 2019-03-28 | 2019-07-23 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Rectangular waveguide radial combiner |
| CN112259940A (en) * | 2020-09-21 | 2021-01-22 | 西北核技术研究所 | Tunable mixed mode converter based on over-mode circular waveguide and design method thereof |
| CN115939932A (en) * | 2023-02-17 | 2023-04-07 | 福建慧芯激光科技有限公司 | High single mode yield curved waveguide DFB laser chip |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110048204A (en) * | 2019-03-28 | 2019-07-23 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Rectangular waveguide radial combiner |
| CN110048204B (en) * | 2019-03-28 | 2021-05-11 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Rectangular waveguide radial power combiner |
| CN112259940A (en) * | 2020-09-21 | 2021-01-22 | 西北核技术研究所 | Tunable mixed mode converter based on over-mode circular waveguide and design method thereof |
| CN115939932A (en) * | 2023-02-17 | 2023-04-07 | 福建慧芯激光科技有限公司 | High single mode yield curved waveguide DFB laser chip |
| CN115939932B (en) * | 2023-02-17 | 2023-05-09 | 福建慧芯激光科技有限公司 | High Shan Moliang-rate bent waveguide DFB laser chip |
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