CN101510628B - Waveguide tube - Google Patents
Waveguide tube Download PDFInfo
- Publication number
- CN101510628B CN101510628B CN200810008223A CN200810008223A CN101510628B CN 101510628 B CN101510628 B CN 101510628B CN 200810008223 A CN200810008223 A CN 200810008223A CN 200810008223 A CN200810008223 A CN 200810008223A CN 101510628 B CN101510628 B CN 101510628B
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- Prior art keywords
- connector
- connects
- face
- waveguide
- main cavity
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- Waveguide Switches, Polarizers, And Phase Shifters (AREA)
Abstract
The invention relates to a waveguide tube and a structure adjusting method thereof. The waveguide tube comprises a connector, a main cavity body and a buffering part. The buffering part is connected with the connector and the main cavity body. The side length of the abutted surface between the connector and the buffering part is shorter than that of the abutted surface between the buffering part and the main cavity body. The structure adjusting method comprises the following steps: the side length of the abutted surface between the connector and the buffering part is caused to be shorter thanthat of the abutted surface between the buffering part and the main cavity body. Compared with the prior art, the waveguide tube and the structure adjusting method are capable of improving the loss of reflected signals in the receiving frequency range and providing the quality of the receipt signals.
Description
Technical field
The present invention relates to a kind of waveguide (waveguide), and more particularly, relate to a kind of geometry of adjusting waveguide to promote the technology of its receiving and transmitting signal quality.
Background technology
Satellite Communication System general using waveguide connects antenna and signal processing circuit, and its function is in order to the transmission satellite-signal, and makes appropriate signals and handle in order to subsequent operation.The circularly polarised wave conduit is made up of a channel-splitting filter (splitter) and a polarizer (polarizer).This channel-splitting filter is divided into the signal of vertical and level in order to the equiphase satellite communication that tendency to develop is sent.This polarizer vertical is divided into the signal that phase difference 90 is spent with horizontal signal in order to being somebody's turn to do.
The known circularly polarised wave conduit that is applied to the double frequency-band wrinkle shape structure (Corrugated Structure) of Ka frequency range; Its emission signal frequency response (frequency response) regular meeting spike (spike) occurs in its transmit frequency band, thereby reduces its transmission signal quality.In addition, this partial wave formula waveguide also can reduce this reception quality of signals because of its reflected signal is excessive when receiving signal.Therefore, geometry how to adjust this waveguide to be promoting the quality of its receiving and transmitting signal, the important topic when waveguide is applied to satellite communication.
Summary of the invention
The object of the present invention is to provide a kind of waveguide that can promote the transmitting-receiving quality.
The waveguide of one embodiment of the invention comprises a connector, a main cavity and a buffer part.This buffer part connects this connector and this main cavity.The face that the connects length of side of this connector and this buffer part is less than the face that the connects length of side of this buffer part and this main cavity; This main cavity is the polarizer of a double frequency-band wrinkle shape structure.
The waveguide of one embodiment of the invention comprises a connector; One main cavity; And
One buffer part connects this connector and this main cavity;
The length of side of the face that connects that is connected with this main cavity less than this buffer part of the length of side of the face that connects that is connected with this buffer part of this connector wherein;
Wherein, the face that connects that said connector is connected with this buffer part is square, and the face that connects that said buffer part is connected with this main cavity is square.
Compared with prior art, beneficial effect of the present invention is, improves the reflected signal loss in this reception frequency range, and the reception quality of signals can be provided.
Description of drawings
Figure 1A is the partial top view of the waveguide of demonstration one embodiment of the invention;
Figure 1B is the front view of the waveguide of demonstration one embodiment of the invention;
Fig. 1 C is the end view of the waveguide of demonstration one embodiment of the invention;
Fig. 2 A is the response diagram of a tranmitting frequency (the GHz)-amplitude (dB) of demonstration one embodiment of the invention;
Fig. 2 B is the response diagram of another tranmitting frequency (the GHz)-amplitude (dB) of demonstration one embodiment of the invention;
Fig. 2 C is the response diagram of a tranmitting frequency again (the GHz)-amplitude (dB) of demonstration one embodiment of the invention;
Fig. 3 is the response diagram of a receive frequency (the GHz)-amplitude (dB) of demonstration one embodiment of the invention; And
Fig. 4 shows that the adjustment waveguide geometry of one embodiment of the invention is to promote the flow chart of its receiving and transmitting signal method for quality.
Wherein, description of reference numerals is following:
10 waveguides
11 connectors
12 main cavities
13 buffer part
S1～S2 step
Embodiment
Figure 1A is the partial top view of the waveguide of demonstration one embodiment of the invention.Figure 1B is the front view of this waveguide 10.Fig. 1 C is the end view of this waveguide 10.This waveguide 10 comprises a connector 11, a main cavity 12 and a buffer part 13.This connector 11 is a channel-splitting filter, and it is connected to a signal processing unit, is divided into the signal of vertical and level in order to the equiphase satellite communication that tendency to develop is sent.This main cavity 12 is the polarizer of a double frequency-band wrinkle shape structure, vertical is divided into the signal that phase difference 90 is spent with horizontal signal in order to being somebody's turn to do, and is sent to an antenna.This buffer part 13 is in order to connect this connector 11 and this main cavity 12.As shown in Figure 1, the face that the connects length of side of these connector 11 openends is W
1, the length of side of the face that connects that this connector 11 is connected with this buffer part 13 is W
2, the face that the connects length of side that this buffer part 13 is connected with this main cavity 12 is W
3, and the length of this buffer part 13 is L.
This waveguide 10 comprises a high-frequency emission frequency range and a low frequency receives frequency range.For solving the spike problem of this waveguide 10 in the transmit frequency band frequency response, present embodiment is with W
2Shorten, so that the spike in this band frequency response is away from this transmit frequency band.
Fig. 2 A is the response diagram of a tranmitting frequency (the GHz)-amplitude (dB) of demonstration embodiments of the invention.Shown in Fig. 2 A, at fixing W
1Be 0.374 inch, and W
2Be under 0.43 inch the situation, if W
3More little, then the spike in the frequency response that produced of this waveguide 10 is few more.Preferably, W
3Between 0.425 to 0.435 inch.
Fig. 2 B is the response diagram of another tranmitting frequency (the GHz)-amplitude (dB) of demonstration embodiments of the invention.Shown in Fig. 2 B, at fixing W
1Be 0.36 inch, and W
3Be under 0.43 inch the situation, if W
2More little, the spike that then is positioned at the band frequency response is far away more from this transmit frequency band.Preferably, W
2And W
1Ratio less than 1.2.W for example
2And W
1Ratio can be between 1 to 1.2.
Fig. 2 C is the response diagram of a tranmitting frequency again (the GHz)-amplitude (dB) of demonstration embodiments of the invention.Shown in Fig. 2 C, at fixing W
1Be 0.374 inch, and W
3Be under 0.43 inch the situation, if W
2More little, the spike that then is positioned at the band frequency response is far away more from this transmit frequency band.Preferably, W
2And W
1Ratio less than 1.07.
In addition, when receiving signal, reduce this received signal quality because of its reflected signal is excessive for solving this waveguide 10, present embodiment is with W
1Increase, to improve the reflected signal loss (return loss) in this reception frequency range.
Fig. 3 is the response diagram of a receive frequency (the GHz)-amplitude (dB) of demonstration embodiments of the invention.As shown in Figure 3, at fixing W
2Be 0.4 inch, and W
3Be under 0.43 inch the situation, if W
1Big more, the reflected signal loss response that then receives in the frequency range is good more.Preferably, W
1Between 0.35 to 0.375 inch.
To shown in Figure 3, waveguide of the present invention can effectively improve the shortcoming of prior art when being applied in Ka and K frequency range like Fig. 1, and promotes its transmitting-receiving quality.
Fig. 4 shows that the adjustment waveguide geometry of one embodiment of the invention is to promote the flow chart of its receiving and transmitting signal method for quality.This waveguide comprises a connector and is connected to a main cavity via a buffer part, and wherein this connector is a channel-splitting filter, and is connected to signal processing unit, and this main cavity is a polarizer, and is connected to an antenna.At step S1, make the connect face length of side of the face that the connects length of side of this connector and this buffer part less than this buffer part and this main cavity.At step S2, increase the face that the connects length of side of this connector openend.
Waveguide of the present invention is not limited to the square that embodiment discloses and connects the waveguide of face, and should comprise the waveguide that different shape connects face, triangle for example, and hexagon, circular or the like.
Technology contents of the present invention and technical characterstic disclose as above, yet the personage who is familiar with this technology still maybe be based on instruction of the present invention and disclosure and done all replacement and modifications that does not deviate from spirit of the present invention.Therefore, protection scope of the present invention should be not limited to the content that embodiment discloses, and should comprise various do not deviate from replacement of the present invention and modifications, and is contained by the scope of appended claims.
Claims (17)
1. waveguide comprises:
One connector;
One main cavity; And
One buffer part connects this connector and this main cavity;
The length of side of the face that connects that is connected with this main cavity less than this buffer part of the length of side of the face that connects that is connected with this buffer part of this connector wherein; This main cavity is the polarizer of a double frequency-band wrinkle shape structure.
2. waveguide according to claim 1, wherein the ratio compared with the face that the connects length of side of this connector openend of the length of side of the face that connects of this connector and this buffer part is less than 1.2.
3. waveguide according to claim 1, wherein the ratio compared with the face that the connects length of side of this connector openend of the length of side of the face that connects of this connector and this buffer part is less than 1.07.
4. waveguide according to claim 1, wherein the face that the connects length of side of this connector openend is between 0.35 to 0.375 inch.
5. waveguide according to claim 1, wherein the length of side of the face that connects of this buffer part and this main cavity connection is between 0.425 to 0.435 inch.
6. waveguide according to claim 1, wherein this connector is a channel-splitting filter.
7. waveguide according to claim 1, wherein, this waveguide is applied to the Ka frequency range.
8. waveguide according to claim 1, wherein, this waveguide is applied to the K frequency range.
9. waveguide comprises:
One connector;
One main cavity; And
One buffer part connects this connector and this main cavity;
The length of side of the face that connects that is connected with this main cavity less than this buffer part of the length of side of the face that connects that is connected with this buffer part of this connector wherein;
Wherein, the face that connects that said connector is connected with this buffer part is square, and the face that connects that said buffer part is connected with this main cavity is square.
10. waveguide according to claim 9, wherein the ratio compared with the face that the connects length of side of this connector openend of the length of side of the face that connects of this connector and this buffer part is less than 1.2.
11. waveguide according to claim 9, wherein the ratio compared with the face that the connects length of side of this connector openend of the length of side of the face that connects of this connector and this buffer part is less than 1.07.
12. waveguide according to claim 9, wherein the face that the connects length of side of this connector openend is between 0.35 to 0.375 inch.
13. waveguide according to claim 11, wherein the length of side of the face that connects of this buffer part and this main cavity connection is between 0.425 to 0.435 inch.
14. waveguide according to claim 9, wherein this connector is a channel-splitting filter.
15. waveguide according to claim 9, wherein this main cavity is a polarizer.
16. waveguide according to claim 9, wherein, this waveguide is applied to the Ka frequency range.
17. waveguide according to claim 9, wherein, this waveguide is applied to the K frequency range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810008223A CN101510628B (en) | 2008-02-14 | 2008-02-14 | Waveguide tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810008223A CN101510628B (en) | 2008-02-14 | 2008-02-14 | Waveguide tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101510628A CN101510628A (en) | 2009-08-19 |
| CN101510628B true CN101510628B (en) | 2012-10-10 |
Family
ID=41002931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810008223A Expired - Fee Related CN101510628B (en) | 2008-02-14 | 2008-02-14 | Waveguide tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101510628B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2535251A (en) * | 1946-04-09 | 1950-12-26 | Alford Andrew | Rotatable wave guide joint |
| US4686491A (en) * | 1985-10-22 | 1987-08-11 | Chaparral Communications | Dual probe signal receiver |
| CN2125878U (en) * | 1992-01-20 | 1992-12-23 | 东南大学 | Converter for square-waveguide and circular-wavequide |
| US5995057A (en) * | 1998-05-27 | 1999-11-30 | Trw Inc. | Dual mode horn reflector antenna |
| US6518853B1 (en) * | 2001-09-06 | 2003-02-11 | The Boeing Company | Wideband compact large step circular waveguide transition apparatus |
-
2008
- 2008-02-14 CN CN200810008223A patent/CN101510628B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2535251A (en) * | 1946-04-09 | 1950-12-26 | Alford Andrew | Rotatable wave guide joint |
| US4686491A (en) * | 1985-10-22 | 1987-08-11 | Chaparral Communications | Dual probe signal receiver |
| CN2125878U (en) * | 1992-01-20 | 1992-12-23 | 东南大学 | Converter for square-waveguide and circular-wavequide |
| US5995057A (en) * | 1998-05-27 | 1999-11-30 | Trw Inc. | Dual mode horn reflector antenna |
| US6518853B1 (en) * | 2001-09-06 | 2003-02-11 | The Boeing Company | Wideband compact large step circular waveguide transition apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101510628A (en) | 2009-08-19 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20190214 |
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| CF01 | Termination of patent right due to non-payment of annual fee |