CN111834725A - Multi-pin waveguide tuner - Google Patents
Multi-pin waveguide tuner Download PDFInfo
- Publication number
- CN111834725A CN111834725A CN202010685786.0A CN202010685786A CN111834725A CN 111834725 A CN111834725 A CN 111834725A CN 202010685786 A CN202010685786 A CN 202010685786A CN 111834725 A CN111834725 A CN 111834725A
- Authority
- CN
- China
- Prior art keywords
- waveguide
- pin
- pins
- along
- tuner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/12—Coupling devices having more than two ports
Landscapes
- Structure Of Receivers (AREA)
Abstract
The invention discloses a design scheme of a multi-pin waveguide tuner, which comprises a waveguide with a section of axis along the Z direction and a wide edge X direction and at least four pins with axes along the Y direction. The depth to which the pin protrudes into the waveguide may be adjustable externally from the waveguide. At least one nut is disposed around each of the pins. The waveguide is a rectangular waveguide, or a single-ridge rectangular waveguide, or a double-ridge rectangular waveguide. Any two pins adjacent along the Z direction are respectively arranged in the X direction and the-X direction of the axis of the waveguide along the Z direction. The tip of at least one pin within the waveguide is rounded. A choke groove structure is disposed around the at least one pin. The distance between two adjacent pins along the Z direction is 10-30% of the waveguide wavelength. The invention will be used mainly in high average power microwave systems, especially in the field of industrial application of microwave energy using magnetrons of broadband spectrum.
Description
Technical Field
The invention relates to a microwave allocating device, in particular to a multi-pin waveguide allocating device with high power capacity, enhanced allocating capacity and wide matching bandwidth.
Background
Load mismatch is a technical problem that often needs to be solved in designing microwave systems. Conventional waveguide tuners use three pins of adjustable depth spaced at quarter-wave waveguide wavelength along the waveguide axis to better meet the matching needs of many applications. Conventional waveguide tuners suffer from several drawbacks. Commercial magnetrons with a power of around one thousand watts are commonly used in microwave industrial applications. The microwave source has lower cost and generates microwaves with wider frequency spectrum. In order to make efficient use of such microwave sources, broadband matching of the microwave load within which the material to be heated is placed is required. Conventional waveguide tuners use three pins, which results in the inability to tune out mismatch loads over a wide range.
Disclosure of Invention
The invention aims to provide a multi-pin waveguide tuner. In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a multi-pin waveguide tuner includes a waveguide having an axis along a Z-direction wide edge along an X-direction and at least one pin having an axis along a Y-direction. The depth to which the pin protrudes into the waveguide may be adjustable externally from the waveguide. The X direction, the Y direction and the Z direction form a rectangular coordinate system.
In order to lock the pins after a determined depth of their penetration into the waveguide, at least one nut is arranged around each of said pins.
The waveguide is a rectangular waveguide. A metal ridge can also be arranged in the waveguide, and the waveguide is a single-ridge rectangular waveguide. Two metal ridges can be arranged in the waveguide, and the waveguide is a double-ridge rectangular waveguide.
To broaden the deployment bandwidth of the multi-pin waveguide tuner, the number of pins may be greater than or equal to 4. In a preferred design, the number of the pins can be 6 or 9.
The pins are arranged in sequence along the Z direction. Any two pins adjacent along the Z direction are respectively arranged in the X direction and the-X direction of the axis of the waveguide along the Z direction. Thus, along the Z direction, all the pins are arranged in sequence in the X and-X directions of the broad side of the waveguide, with their axes along the Y direction being located at respective bends of the fold line on one waveguide surface.
To further increase the power capacity of the multi-pin waveguide tuner, the tip of at least one pin within the waveguide is rounded. In a preferred design, the tips of all pins within the waveguide are rounded.
To prevent leakage of microwave energy from the gap between the pin and the waveguide while reducing conductor losses on the pin, a choke groove structure is provided around at least one pin.
Because the number of pins is increased between the pins of a conventional waveguide tuner, the matching bandwidth of the multi-pin waveguide tuner can be widened, and the pins are arranged in such a way that: all the pins are sequentially arranged along the Z direction, and the distance between the axis of any two adjacent pins along the Z direction along the Y direction in the Z direction is 10-30% of the waveguide wavelength of the port of the multi-pin waveguide tuner.
The invention discloses a design scheme of a multi-pin waveguide tuner. The deployment bandwidth of the multi-pin waveguide tuner can be further widened by increasing the number of pins or arranging the pins among the pins of the traditional waveguide tuner, so that the multi-pin waveguide tuner is more suitable for deploying microwave equipment adopting a magnetron with a wider frequency spectrum. The invention is mainly used in microwave systems with high average power, in particular in the field of microwave energy industrial application.
Drawings
FIG. 1 is a schematic top view of examples 1 and 7 of the present invention
FIG. 2 is a schematic cross-sectional view of the AA of FIG. 1
FIG. 3 is a schematic top view of embodiment 2 of the present invention
FIG. 4 is a schematic cross-sectional view of the AA of FIG. 3
FIG. 5 is a schematic top view of examples 3 and 6 of the present invention
FIG. 6 is a schematic cross-sectional view of the AA of FIG. 5
FIG. 7 is a schematic top view of examples 4 and 5 of the present invention
FIG. 8 is a schematic cross-sectional view of the AA of FIG. 7
FIG. 9 is a schematic cross-sectional view of the AA of FIG. 7
FIG. 10 is a schematic cross-sectional view of the AA of FIG. 5
FIG. 11 is a schematic cross-sectional view of the AA of FIG. 1
The reference numbers in the drawings correspond to the names: 1-waveguide, 2-pin, 3-nut, 4-choke groove structure, 5-metal ridge.
Some of the terms specified in this specification are as follows:
the horizontal direction, i.e., the direction lying in the horizontal plane, i.e., the direction lying in the XZ plane.
The vertical direction is the direction perpendicular to the horizontal plane.
The upper side is the Y direction.
The lower side is in the-Y direction.
And on the left, the X direction.
The right direction is the-X direction.
Detailed Description
Example 1
As shown in fig. 1 and 2.
A multi-pin waveguide tuner comprises a waveguide 1 with a wide edge in the Z direction and an X direction, and 6 pins 2 with axes in the Y direction. The depth to which the pin 2 protrudes into the waveguide 1 can be adjusted from the outside of the waveguide 1.
A nut 3 is provided around each of said pins 2.
The waveguide 1 is a rectangular waveguide.
The tips of all the pins 2 located inside the waveguide 1 are rounded.
Around each pin 2 a choke groove structure 4 is arranged.
The pins 2 are arranged in sequence along the Z direction. The distance between the axes of any two adjacent pins 2 along the Z direction along the Y direction in the Z direction is 10-30% of the waveguide wavelength of the port of the multi-pin waveguide tuner.
Example 2
As shown in fig. 3 and 4.
A multi-pin waveguide tuner comprises a waveguide 1 with a wide edge in the Z direction and an X direction, and 6 pins 2 with axes in the Y direction. The depth to which the pin 2 protrudes into the waveguide 1 can be adjusted from the outside of the waveguide 1.
A nut 3 is provided around each of said pins 2.
The waveguide 1 is a rectangular waveguide.
The axis of each pin 2 in the Y direction is offset from the axis of the waveguide 1 in the Z direction in the X direction by a distance greater than 5% of the wavelength in free space at the center frequency of the operating band of the multi-pin waveguide tuner.
The cross section of each pin 2 is circular.
The pins 2 are arranged in sequence along the Z direction. Any two of the pins 2 adjacent in the Z direction are arranged in the X direction and the-X direction of the axis of the waveguide 1 in the Z direction, respectively. Thus, all the pins are arranged in the direction Z in the direction X and in the direction-X of the broad side of the waveguide 1, their axes in the direction Y being located at the respective bends of a broken line.
The tips of all the pins 2 located inside the waveguide 1 are rounded.
Around each pin 2 a choke groove structure 4 is arranged.
The pins 2 are arranged in sequence along the Z direction. The distance between the axes of any two adjacent pins 2 along the Z direction along the Y direction in the Z direction is 10-30% of the waveguide wavelength of the port of the multi-pin waveguide tuner.
Example 3
As shown in fig. 5 and 6.
A multi-pin waveguide tuner comprises a waveguide 1 with a wide edge in the Z direction and an X direction, and 6 pins 2 with axes in the Y direction. The depth to which the pin 2 protrudes into the waveguide 1 can be adjusted from the outside of the waveguide 1.
A nut 3 is provided around each of said pins 2.
The bottom of the waveguide 1 is provided with a metal ridge 5, and the waveguide 1 is a single-ridge rectangular waveguide.
The axis of each pin 2 in the Y direction is offset from the axis of the waveguide 1 in the Z direction in the X direction by a distance greater than 5% of the wavelength in free space at the center frequency of the operating band of the multi-pin waveguide tuner.
Each pin 2 has a circular cross-sectional shape.
The pins 2 are arranged in sequence along the Z direction. Any two of the pins 2 adjacent in the Z direction are arranged in the X direction and the-X direction of the axis of the waveguide 1 in the Z direction, respectively. Thus, all the pins are arranged in the direction Z in the direction X and in the direction-X of the broad side of the waveguide 1, their axes in the direction Y being located at the respective bends of a broken line.
The tips of all the pins 2 located inside the waveguide 1 are rounded.
Around each pin 2 a choke groove structure 4 is arranged.
The pins 2 are arranged in sequence along the Z direction. The distance between the axes of any two adjacent pins 2 along the Z direction along the Y direction in the Z direction is 10-30% of the waveguide wavelength of the port of the multi-pin waveguide tuner.
Example 4
As shown in fig. 7 and 8.
A multi-pin waveguide tuner comprises a waveguide 1 with a wide edge in the Z direction and an X direction, and 6 pins 2 with axes in the Y direction. The depth to which the pin 2 protrudes into the waveguide 1 can be adjusted from the outside of the waveguide 1.
A nut 3 is provided around each of said pins 2.
The bottom of the waveguide 1 is provided with a metal ridge 5, and the waveguide 1 is a single-ridge rectangular waveguide.
The axis of each pin 2 in the Y direction is offset from the axis of the waveguide 1 in the Z direction in the X direction by a distance greater than 5% of the wavelength in free space at the center frequency of the operating band of the multi-pin waveguide tuner.
All the pins 2 have a circular cross-sectional shape.
The pins 2 are arranged in sequence along the Z direction. Any two of the pins 2 adjacent in the Z direction are arranged in the X direction and the-X direction of the axis of the waveguide 1 in the Z direction, respectively. Thus, all the pins are arranged in the direction Z in the direction X and in the direction-X of the broad side of the waveguide 1, their axes in the direction Y being located at the respective bends of a broken line.
Any two pins 2 adjacent in the Z direction are provided on the upper surface of the waveguide 1 with its normal line in the Y direction and the lower surface of the waveguide 1 with its normal line in the-Y direction, respectively.
The tips of all the pins 2 located inside the waveguide 1 are rounded.
Around each pin 2 a choke groove structure 4 is arranged.
The pins 2 are arranged in sequence along the Z direction. The distance between the axes of any two adjacent pins 2 along the Z direction along the Y direction in the Z direction is 10-30% of the waveguide wavelength of the port of the multi-pin waveguide tuner.
Example 5
As shown in fig. 7 and 9.
A multi-pin waveguide tuner comprises a waveguide 1 with a wide edge in the Z direction and an X direction, and 6 pins 2 with axes in the Y direction. The depth to which the pin 2 protrudes into the waveguide 1 can be adjusted from the outside of the waveguide 1.
A nut 3 is provided around each of said pins 2.
The bottom and the top of the waveguide 1 are provided with two metal ridges 5, and the waveguide 1 is a double-ridge rectangular waveguide.
The axis of each pin 2 in the Y direction is offset from the axis of the waveguide 1 in the Z direction in the X direction by a distance greater than 5% of the wavelength in free space at the center frequency of the operating band of the multi-pin waveguide tuner.
All the pins 2 have a circular cross-sectional shape.
All the pins 2 are arranged in sequence along the Z direction. Any two of the pins 2 adjacent in the Z direction are arranged in the X direction and the-X direction of the axis of the waveguide 1 in the Z direction, respectively. Thus, all the pins are arranged in the direction Z in the direction X and in the direction-X of the broad side of the waveguide 1, their axes in the direction Y being located at the respective bends of a broken line.
Any two pins 2 adjacent in the Z direction are provided on the upper surface of the waveguide 1 with its normal line in the Y direction and the lower surface of the waveguide 1 with its normal line in the-Y direction, respectively.
The tips of all the pins 2 located inside the waveguide 1 are rounded.
Around each pin 2 a choke groove structure 4 is arranged.
The pins 2 are arranged in sequence along the Z direction. The distance between the axes of any two adjacent pins 2 along the Z direction along the Y direction in the Z direction is 10-30% of the waveguide wavelength of the port of the multi-pin waveguide tuner.
Example 6
As shown in fig. 5 and 10.
A multi-pin waveguide tuner comprises a waveguide 1 with a wide edge in the Z direction and an X direction, and 6 pins 2 with axes in the Y direction. The depth to which the pin 2 protrudes into the waveguide 1 can be adjusted from the outside of the waveguide 1.
A nut 3 is provided around each of said pins 2.
The bottom and the top of the waveguide 1 are provided with two metal ridges 5, and the waveguide 1 is a double-ridge rectangular waveguide.
The axis of each pin 2 in the Y direction is offset from the axis of the waveguide 1 in the Z direction in the X direction by a distance greater than 5% of the wavelength in free space at the center frequency of the operating band of the multi-pin waveguide tuner.
The cross-sectional shape of all the pins 2 is circular%.
The pins 2 are arranged in sequence along the Z direction. Any two of the pins 2 adjacent in the Z direction are arranged in the X direction and the-X direction of the axis of the waveguide 1 in the Z direction, respectively. All the pins are arranged in the direction Z in the X-direction and the-X-direction of the broad side of the waveguide 1, with their axes in the direction Y at the respective bends of a broken line.
The tips of all the pins 2 located inside the waveguide 1 are rounded.
Around each pin 2 a choke groove structure 4 is arranged.
The pins 2 are arranged in sequence along the Z direction. The distance between the axes of any two adjacent pins 2 along the Z direction along the Y direction in the Z direction is 10-30% of the waveguide wavelength of the port of the multi-pin waveguide tuner.
Example 7
As shown in fig. 1 and 11.
A multi-pin waveguide tuner comprises a waveguide 1 with a wide edge in the Z direction and an X direction, and 6 pins 2 with axes in the Y direction. The depth to which the pin 2 protrudes into the waveguide 1 can be adjusted from the outside of the waveguide 1.
A nut 3 is provided around each of said pins 2.
The waveguide 1 is a rectangular waveguide.
The cross-sectional shape of the pin 2 is circular.
Any two pins 2 adjacent in the Z direction are provided on the upper surface of the waveguide 1 with its normal line in the Y direction and the lower surface of the waveguide 1 with its normal line in the-Y direction, respectively.
The tips of all the pins 2 located inside the waveguide 1 are rounded.
Around each pin 2 a choke groove structure 4 is arranged.
The pins 2 are arranged in sequence along the Z direction. The distance between the axes of any two adjacent pins 2 along the Z direction along the Y direction in the Z direction is 10-30% of the waveguide wavelength of the port of the multi-pin waveguide tuner.
7 embodiments of the present invention are given above. The actual implementation is far more extensive than listed here. The multi-pin waveguide tuner is generally made of rectangular waveguide section bars through the working procedures of cutting, drilling, tapping and the like.
According to the multi-pin waveguide tuner disclosed by the invention, the pins are arranged in a manner of deviating from the centers of the wide sides of the waveguides, so that the diameters of the pins can be increased, the power capacity of the multi-pin waveguide tuner is improved, and the tuning capacity of the multi-pin waveguide tuner is enhanced. Different pins can also be arranged on two wide sides of the waveguide respectively, and the diameter of the pin is increased to improve the power capacity of the multi-pin waveguide tuner. The matching bandwidth of the multi-pin waveguide tuner can be broadened by increasing the number of pins. The invention can be widely used in microwave systems with high average power, in particular in the field of microwave energy industrial application.
Claims (9)
1. A multi-pin waveguide tuner is characterized by comprising a waveguide (1) with a section of axis along the Z direction and a wide edge along the X direction and at least one pin (2) with an axis along the Y direction; the depth of the pin (2) extending into the waveguide (1) can be adjusted from the outside of the waveguide (1); the number of the pins (2) is more than or equal to 4; the X direction, the Y direction and the Z direction form a rectangular coordinate system.
2. A multi-pin waveguide tuner as claimed in claim 1, wherein at least one nut (3) is provided around each pin (2); the depth of the nail (2) extending into the waveguide (1)) can be locked and fixed by the nut (3).
3. A multi-pin waveguide tuner as claimed in claim 1, wherein the waveguide (1) is a rectangular waveguide, or a single-ridge rectangular waveguide, or a double-ridge rectangular waveguide.
4. A multi-pin waveguide tuner as claimed in claim 1, wherein the number of pins (2) is 6.
5. A multi-pin waveguide tuner as claimed in claim 1, wherein the number of pins (2) is 9.
6. A multi-pin waveguide tuner as claimed in claim 1, wherein the pins (2) are arranged in sequence in the Z direction; any two pins (2) adjacent along the Z direction are respectively arranged in the X direction and the-X direction of the axis of the waveguide (1) along the Z direction.
7. A multi-pin waveguide tuner as claimed in claim 1, wherein the tip of at least one pin (2) within the waveguide (1) is rounded.
8. A multi-pin waveguide tuner as claimed in claim 1, wherein a choke groove structure (4) is provided around at least one pin (2).
9. A multi-pin waveguide tuner as claimed in claim 1, wherein the pins (2) are arranged in sequence in the Z direction; the distance between the axes of any two adjacent pins (2) along the Z direction along the Y direction in the Z direction is 10-30% of the waveguide wavelength of the port of the multi-pin waveguide tuner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010685786.0A CN111834725A (en) | 2020-07-16 | 2020-07-16 | Multi-pin waveguide tuner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010685786.0A CN111834725A (en) | 2020-07-16 | 2020-07-16 | Multi-pin waveguide tuner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111834725A true CN111834725A (en) | 2020-10-27 |
Family
ID=72923002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010685786.0A Pending CN111834725A (en) | 2020-07-16 | 2020-07-16 | Multi-pin waveguide tuner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111834725A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112533348A (en) * | 2020-12-15 | 2021-03-19 | 成都迈频汇能科技有限公司 | High-power microwave automatic blending device |
| CN115863947A (en) * | 2022-10-21 | 2023-03-28 | 电子科技大学 | T-shaped waveguide tuner |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202333099U (en) * | 2011-10-19 | 2012-07-11 | 成都赛纳赛德科技有限公司 | Harmonic suppression filter |
| CN105206907A (en) * | 2015-10-10 | 2015-12-30 | 成都赛纳赛德科技有限公司 | Directing plane distributor |
| CN208226056U (en) * | 2017-12-27 | 2018-12-11 | 湖北神雾热能技术有限公司 | A kind of remote adjustment recording screw tuner |
| CN111342172A (en) * | 2020-03-17 | 2020-06-26 | 电子科技大学 | Compact large-average-power matched load |
-
2020
- 2020-07-16 CN CN202010685786.0A patent/CN111834725A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202333099U (en) * | 2011-10-19 | 2012-07-11 | 成都赛纳赛德科技有限公司 | Harmonic suppression filter |
| CN105206907A (en) * | 2015-10-10 | 2015-12-30 | 成都赛纳赛德科技有限公司 | Directing plane distributor |
| CN208226056U (en) * | 2017-12-27 | 2018-12-11 | 湖北神雾热能技术有限公司 | A kind of remote adjustment recording screw tuner |
| CN111342172A (en) * | 2020-03-17 | 2020-06-26 | 电子科技大学 | Compact large-average-power matched load |
Non-Patent Citations (2)
| Title |
|---|
| 伍捍东 等: "《微波与毫米波》", 31 December 2007 * |
| 张少辉 等: "三销钉调配器的研究", 《真空电子技术》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112533348A (en) * | 2020-12-15 | 2021-03-19 | 成都迈频汇能科技有限公司 | High-power microwave automatic blending device |
| CN115863947A (en) * | 2022-10-21 | 2023-03-28 | 电子科技大学 | T-shaped waveguide tuner |
| CN115863947B (en) * | 2022-10-21 | 2024-04-02 | 电子科技大学 | T-shaped waveguide dispatcher |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102918712B (en) | Antenna assembly | |
| CN111834725A (en) | Multi-pin waveguide tuner | |
| US20060158381A1 (en) | Slot array antenna and plasma processing apparatus | |
| CN109687107B (en) | High-radiation-efficiency and high-selectivity terahertz filter antenna based on artificial electric wall | |
| CN108550987A (en) | A kind of double frequency slot array antenna based on SIW | |
| CN201732867U (en) | Periodic leaky-wave antenna of substrate integrated waveguide (SIW) based on half module | |
| CN110676589A (en) | High-gain differential dual-polarized dielectric patch antenna based on higher-order mode | |
| CN102637958B (en) | Composite left-right-hand transmission line type narrow band wide-range frequency scan antenna | |
| CN111816967B (en) | High-power waveguide tuner | |
| CN108306087A (en) | A kind of double frequency transmission line and its double frequency leaky-wave antenna | |
| CN102509891A (en) | Frequency-adjustable Butler matrix | |
| CN111834724A (en) | Double-ridge waveguide tuner | |
| CN111834722A (en) | Double-side pin waveguide tuner | |
| CN111834723A (en) | Single ridge waveguide tuner | |
| CN111029704A (en) | Compact waveguide bidirectional coupler | |
| CN108417948A (en) | A kind of four road ridge waveguide power splitter of rectangular waveguide based on metal ridge | |
| CN108539347A (en) | A kind of four road power splitter of compact square wave guide | |
| CN212011278U (en) | Leaky-wave antenna based on substrate integrated waveguide | |
| CN115939711B (en) | Heightened waveguide dispatcher | |
| CN109119734A (en) | A kind of four road ridge waveguide power splitter of rectangular waveguide based on metal ridge | |
| CN109119735A (en) | A kind of four road power splitter of compact rectangular waveguide | |
| CN210806012U (en) | Electromagnetic band gap structure and radio frequency antenna structure | |
| KR101724215B1 (en) | Traveling wave antenna with rectangular waveguide feeding structure | |
| CN115863947B (en) | T-shaped waveguide dispatcher | |
| CN108417949A (en) | A kind of four road power splitter of compact rectangular waveguide |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20201027 |
|
| WD01 | Invention patent application deemed withdrawn after publication |