CN202651329U - Miniaturized broadband orthogonal type waveguide coaxial converter - Google Patents
Miniaturized broadband orthogonal type waveguide coaxial converter Download PDFInfo
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- CN202651329U CN202651329U CN 201220319077 CN201220319077U CN202651329U CN 202651329 U CN202651329 U CN 202651329U CN 201220319077 CN201220319077 CN 201220319077 CN 201220319077 U CN201220319077 U CN 201220319077U CN 202651329 U CN202651329 U CN 202651329U
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- waveguide
- coaxial
- rectangular waveguide
- standard rectangular
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Abstract
The utility model relates to a miniaturized broadband orthogonal type waveguide coaxial converter, comprising a standard rectangular waveguide, wherein one end of the standard rectangular waveguide is closed and is a short circuit end, the other end of the standard rectangular waveguide is open, the wide side at one side of the standard rectangular waveguide is provided with a coaxial connector, the axial direction of the coaxial connector is orthogonal to the transmission direction of the electric field inside the rectangular waveguide, the inner conductor of the coaxial connector extends into the standard rectangular waveguide, the end portion of the coaxial connector is connected with a small metal circular truncated cone, and the small metal circular truncated cone is concentric with the inner conductor of the coaxial connector, and the wide side at the other side of the standard rectangular waveguide is provided with five metal coupling columns distributed in a quincunx shape. The miniaturized broadband orthogonal type waveguide coaxial converter can simultaneously satisfy the demands of miniaturization, broadband and small standing wave, and is simple in structure machining and manufacture, and convenient in test, mounting and adjustment, for example, the length of a full waveguide bandwidth converter, in X-frequency range, can be reduced from 50 mm to 15 mm in a normal step-type mode, and the length of the full waveguide bandwidth converter, in Ka frequency range, can be reduced from 20 mm to 6 mm.
Description
Technical field
The utility model belongs to the microwave device technical field, is specifically related to a kind of waveguide coaxial converter.
Background technology
Waveguide coaxial converter is a kind of microwave device with extensive use, adopts at the same time waveguide and coaxial line to do nearly all can use in the microwave system of transmission line.Common orthogonal formula waveguide coaxial converter is the principle of utilizing electric coupling, the inner wire of coaxial line is vertically into the waveguide from waveguide broadside as probe, when requiring broadband operation, Narrow Wall of Waveguide limit height design is become multistage ladder pattern, when staircase waveform dodar to 4 can realize that the wide standing-wave ratio of all-wave conduction band is better than the electric property of 20dB during to 5 grades.Such as Fig. 6, shown in Figure 7, Fig. 6 is the wide waveguide coaxial converter existing structure of all-wave conduction band schematic diagram, and Fig. 7 is its cutaway view.Often there is following defective in this existing structure mode of the wide waveguide coaxial converter of all-wave conduction band shown in Figure 6: 1, size is larger, usually reaches 50mm in X-band length, reaches 20mm in Ka wave band length; 2, be not easy to processing and manufacturing, the precision of the ladder duct height of this structural requirement is very responsive on the electrical property impact of whole device, especially arrives millimeter wave frequency band, and the precision of ladder duct height must be controlled within the positive and negative 0.02mm; 3, can't finely tune in experiment, in case machine-shaping, the size of inner each step of waveguide can't be changed, and also just can't debug correction in experiment, in case processing error, then overall performance can not satisfy instructions for use, can only scrap; 4, install, assemble difficulty, in the Installation and Debugging process, require within the coaxial fitting 9 among Fig. 7 conductor 10 and 11 on step of coupling to have good electrically contacting, this point is very difficult in installation process, need control coaxial inner conductor diameter than between the little 0.01～0.02mm in aperture on the coupling step, this is difficult to guarantee in processing and installation process.
The utility model content
For solve the size that existing waveguide coaxial converter exists large, be not easy to processing and manufacturing and the problem such as can't in experiment, finely tune, the utility model provides a kind of minimized wide-band orthogonal formula waveguide coaxial converter.
Technical solution of the present utility model is as follows:
Minimized wide-band orthogonal formula waveguide coaxial converter comprises standard rectangular waveguide 1, and the sealing of one end is short-circuit end 2, other end opening; Side broadside in standard rectangular waveguide 1 is provided with a coaxial fitting 3, the electromagnetic field transmission direction quadrature in the axial and standard rectangular waveguide 1 of coaxial fitting 3; The inner wire 4 of coaxial fitting 3 is deep into standard rectangular waveguide 1 inside, and its end connects a metal roundlet platform 5, and the inner wire of metal roundlet platform 5 and coaxial fitting 3 is concentric; Opposite side broadside in standard rectangular waveguide 1 arranges 5 metal matched columns 6 that are quincunx distribution;
The degree of depth that the inner wire 4 of coaxial fitting 3 is deep into standard rectangular waveguide 1 inside is that quarter-wave is led height;
The diameter of the metal roundlet platform 5 of inner wire 4 ends of coaxial fitting 3 is about within the coaxial fitting 1.4 times of conductor diameters, highly is about quarter-wave and leads height;
The diameter of each metal matched column 6 is between coaxial fitting 3 inner wires, 4 diameters and metal roundlet platform 5 diameters between the two;
The height of each metal matched column 6 is slightly less than quarter-wave and leads height.
The utility model adopts a kind of frame mode of " the plum blossom village " shape matched column completely newly, simultaneously the coaxial inner conductor end of introducing waveguide inside is designed to a truncated conical shape.The utility model has the advantage of: at first this structural shape can be realized the wide good electric property of all-wave conduction band, compares less than 1.1(27dB at the wide standing internal wave of all-wave conduction band); Next adopts the utility model frame mode, component compact, and compact in size for example can be accomplished 15mm in the X-band device length, in the Ka frequency range, transducer length can be accomplished 6mm; The 3rd, structure processing is simple, and experiment is installed, debugging is convenient, and the round platform of coaxial inner conductor and its end can carry out integrated design processing, and it is suspended in the waveguide, does not need and mate closely electrical connection between step; The 4th, metal matched column 6 can design adjustable form that is processed into, and its height that stretches into waveguide inside can be finely tuned in experimental debugging, and the adverse effect that compensation brings because of mismachining tolerance is in order to reach optimal electric property.
The utility model has realized that waveguide coaxial converter satisfies the premium properties of miniaturization, broadband, little standing wave simultaneously, and its structure processing manufacturability is good, and experimental debugging is convenient.For example can be reduced to 15 millimeters by 50 millimeters of conventional step in the wide transducer length of X frequency range all-wave conduction band, in the Ka frequency range, transducer length can be reduced to 6 millimeters by 20 millimeters.
Description of drawings
Fig. 1 is the utility model converter structure schematic diagram.
Fig. 2 is the utility model transducer longitudinal sectional view.
Fig. 3 is the utility model transducer " quincunx " matched column schematic diagram.
Fig. 4 is the utility model Ka frequency range converter design Case Simulation calculated curve.
Fig. 5 is the utility model X frequency range converter design Case Simulation calculated curve.
Fig. 6 is the wide waveguide coaxial converter existing structure of all-wave conduction band schematic diagram.
Fig. 7 is the wide waveguide coaxial converter existing structure of all-wave conduction band longitudinal sectional view.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described by embodiment.
Embodiment:
Referring to Fig. 1 and Fig. 2, minimized wide-band orthogonal formula waveguide coaxial converter comprises standard rectangular waveguide 1, and the sealing of one end is short-circuit end 2, other end opening; Side broadside in standard rectangular waveguide 1 is provided with a coaxial fitting 3, the electromagnetic field transmission direction quadrature in the axial and standard rectangular waveguide 1 of coaxial fitting 3; The inner wire 4 of coaxial fitting 3 is deep into standard rectangular waveguide 1 inside, and its end connects a metal roundlet platform 5, and the inner wire of metal roundlet platform 5 and coaxial fitting 3 is concentric; Opposite side broadside in standard rectangular waveguide 1 arranges 5 metal matched columns 6 that are quincunx distribution.Coaxial fitting 3 is positioned at the side broadside central authorities of standard rectangular waveguide 1, and the spacing between the short-circuit end 2 is quarter-wave.The degree of depth that the inner wire 4 of coaxial fitting 3 is deep into standard rectangular waveguide 1 inside is that quarter-wave is led height.The diameter of the metal roundlet platform 5 of inner wire 4 ends of coaxial fitting 3 is about within the coaxial fitting 1.4 times of conductor diameters, highly is about quarter-wave and leads height.The diameter of each metal matched column 6 is between coaxial fitting 3 inner wires, 4 diameters and metal roundlet platform 5 diameters between the two.The height of each metal matched column 6 is slightly less than quarter-wave and leads height.
How the below will design by Ka frequency range and two example narrations of X frequency range the wide waveguide coaxial converter of orthogonal formula all-wave conduction band of this pattern.To the Ka frequency range, operating frequency is 26.5GHz～40GHz, and to the X frequency range, operating frequency is 8.2GHz～12.4GHz.
1, standard rectangular waveguide 1 and coaxial fitting 3 chooses
Generally according to desired operating frequency range, choose corresponding standard bore rectangular waveguide, for example, for the Ka frequency range, choose the BJ320 standard waveguide, for the X frequency range, choose the BJ100 standard waveguide; Coaxial fitting 3 can be according to using needs to choose 2.4mm standard coaxial joint or SMA standard coaxial joint.
2, parameter determines
Fig. 4 is Ka frequency range converter design Case Simulation calculated curve, and as can be seen from the figure transducer compares less than 1.10(27dB at all-wave conduction band wide region standing internal wave), function admirable.
Fig. 5 is X frequency range converter design Case Simulation calculated curve, and as can be seen from the figure transducer compares less than 1.08(28.5dB at all-wave conduction band wide region standing internal wave), function admirable.
Claims (6)
1. minimized wide-band orthogonal formula waveguide coaxial converter is characterized in that: comprise standard rectangular waveguide (1), the sealing of one end is short-circuit end (2), other end opening; Side broadside in standard rectangular waveguide (1) is provided with a coaxial fitting (3), the electromagnetic field transmission direction quadrature in the axial and rectangular waveguide of coaxial fitting (3); The inner wire (4) of coaxial fitting (3) is deep into standard rectangular waveguide (1) inside, and its end connects a little round platform of metal (5), and the inner wire of the little round platform of metal (5) and coaxial fitting (3) is concentric; Opposite side broadside in standard rectangular waveguide (1) arranges 5 metal matched columns (6) that are quincunx distribution.
2. minimized wide-band orthogonal formula waveguide coaxial converter according to claim 1 is characterized in that: coaxial fitting (3) is positioned at the side broadside central authorities of standard rectangular waveguide (1), and the spacing between the short-circuit end (2) is quarter-wave.
3. minimized wide-band orthogonal formula waveguide coaxial converter according to claim 1 is characterized in that: it is that quarter-wave is led height that the inner wire (4) of coaxial fitting (3) is deep into the inner degree of depth of standard rectangular waveguide (1).
4. minimized wide-band orthogonal formula waveguide coaxial converter according to claim 1, it is characterized in that: the diameter of the little round platform of metal (5) of inner wire (4) end of coaxial fitting (3) is 1.4 times of conductor diameters within the coaxial fitting, highly leads height for quarter-wave.
5. minimized wide-band orthogonal formula waveguide coaxial converter according to claim 1 is characterized in that: the diameter of each metal matched column (6) is between coaxial fitting (3) inner wire (4) diameter and the little round platform of metal (5) diameter between the two.
6. minimized wide-band orthogonal formula waveguide coaxial converter according to claim 1 is characterized in that: the height of each metal matched column (6) is led height less than quarter-wave.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220319077 CN202651329U (en) | 2012-07-04 | 2012-07-04 | Miniaturized broadband orthogonal type waveguide coaxial converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220319077 CN202651329U (en) | 2012-07-04 | 2012-07-04 | Miniaturized broadband orthogonal type waveguide coaxial converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202651329U true CN202651329U (en) | 2013-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220319077 Expired - Lifetime CN202651329U (en) | 2012-07-04 | 2012-07-04 | Miniaturized broadband orthogonal type waveguide coaxial converter |
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| Country | Link |
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| CN (1) | CN202651329U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751555A (en) * | 2012-07-04 | 2012-10-24 | 中国电子科技集团公司第三十八研究所 | Miniaturized broadband orthogonal type waveguide coaxial converter |
| CN103579729A (en) * | 2013-10-31 | 2014-02-12 | 西安空间无线电技术研究所 | Satellite-borne low insertion loss vertical conversion circuit from high frequency micro band to waveguide broad band |
-
2012
- 2012-07-04 CN CN 201220319077 patent/CN202651329U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751555A (en) * | 2012-07-04 | 2012-10-24 | 中国电子科技集团公司第三十八研究所 | Miniaturized broadband orthogonal type waveguide coaxial converter |
| CN103579729A (en) * | 2013-10-31 | 2014-02-12 | 西安空间无线电技术研究所 | Satellite-borne low insertion loss vertical conversion circuit from high frequency micro band to waveguide broad band |
| CN103579729B (en) * | 2013-10-31 | 2017-07-28 | 西安空间无线电技术研究所 | A kind of spaceborne high-frequency microstrip is to the vertical change-over circuit of waveguide broad-band filter with low insertion loss |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |