CN201114420Y - A high-frequency header and its feedback source wave guide and medium phase shifter - Google Patents
A high-frequency header and its feedback source wave guide and medium phase shifter Download PDFInfo
- Publication number
- CN201114420Y CN201114420Y CNU2007201219736U CN200720121973U CN201114420Y CN 201114420 Y CN201114420 Y CN 201114420Y CN U2007201219736 U CNU2007201219736 U CN U2007201219736U CN 200720121973 U CN200720121973 U CN 200720121973U CN 201114420 Y CN201114420 Y CN 201114420Y
- Authority
- CN
- China
- Prior art keywords
- phase shifter
- feed waveguide
- dielectric phase
- draw
- groove
- 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.)
- Expired - Fee Related
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/02—Waveguide horns
- H01Q13/0266—Waveguide horns provided with a flange or a choke
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/18—Phase-shifters
- H01P1/182—Waveguide phase-shifters
Abstract
The utility model discloses a tuner and a feed waveguide and a dielectric phase shifter thereof; wherein, the dielectric phase shifter is provided with a clamping part used for fixedly connecting the dielectric phase shifter and the feed waveguide; the feed waveguide is provided with a neck used for fixedly connecting the dielectric phase shifter and the feed waveguide. The tuner is provided with the feed waveguide and the dielectric phase shifter which are fixedly connected by the clamping part and the neck. Adopting the technical proposal, the tuner and the feed waveguide and the dielectric phase shifter of the utility model is suitable for the development of domestic direct broadcasting satellite industry in China, provides a product which is characterized by high integration, good reliability, high gain, low noise and low phase noise and has excellent high fidelity receiving effect towards simulation and digital compression satellite signals; the producing is convenient, and the consistency of products is ensured, besides, the tuner of the utility model has the advantages of being light, beautiful and reliable, increasing producing streamline qualified rate, reducing production cost and improving economic benefits.
Description
Technical field
The utility model relates to the tuner of satellite television receiving system, in particular, and a kind of tuner and feed waveguide and dielectric phase shifter.
Background technology
Direct satellite broadcasting TV has that broad covered area, program capacity are big, picture quality reaches advantages such as the receiving equipment volume is little well; Vast in territory in conjunction with China, many, the populous but characteristics such as skewness in island, mountain area and ethnic group zone, country is greatly developing direct satellite television broadcasing.The present satellite broadcasting television of China is still based on C-band, have only long-distance education and part to economize tableland side's program and adopt the Ku wave band, but both all adopt the transponder of linear polarization to transmit, as the satellite of the prosperous promise that 105.5E is arranged that is easier to receive, the Asia-Pacific 2R satellite of 76.5E, satellite of Ma Buhai of 146E, the satellite of culminant star of 88.0E etc.
But the signal of linear polarization except needs are determined the elevation angle and azimuth, also need be determined polarizing angle when receiving, concerning domestic consumer, Installation and Debugging comparatively bother, and are unfavorable for applying.Therefore, popularizing, promoting and installing for ease of satellite television, the development projects to extend radio and TV coverage to all rural villages, solve coverage hole, China or the direct broadcasting satellite that uses of plan, No. four, comprise culminant star No. nine, prosperous promise or the like will adopt the transponder of Ku wave band circular polarization to transmit satellite television programming comprehensively.Circular polarization is compared with linear polarization, and the circular polarization reception is installed more convenient, as long as determine the just fine TV programme that receives of energy of the elevation angle and azimuth, so the circular polarization transmission means more helps popularizing, promote and installing of satellite television; And advantage such as it has, and wavelength is short, frequency is high, reception antenna is little, and antijamming capability is strong, help reducing cost, also more help promoting, popularize and use.
Tuner is one of critical component of satellite receiving system, and the making majority of circular polarization tuner transfers circularly polarized signal to the linear polarization signal by phase shifter and receives or directly reception antenna is made the reception of minor spiral oscillator.The mode of reception antenna being made the minor spiral oscillator is used in the single polarization more, and its making and processing technology are difficult, so the circular polarization tuner adopts the mode that installs dielectric phase shifter in the feed waveguide additional more, the feed waveguide of prior art as shown in Figure 1.Because circularly polarised wave can be regarded synthesizing by the line polarization wave component of two quadratures, constant amplitude, phase phasic difference 90 degree as, make one of them line polarization wave change phase place with dielectric phase shifter exactly so install the operation principle of dielectric phase shifter additional, after one section transmission distance, it is identical that two component phases become, and its synthetic field has become line polarization wave.
The material of dielectric phase shifter adopts the little polytetrafluoroethylene fibre plate making of lossy microwave more, and the size of phase shifter, length design relevant with the wavelength of transmission frequency, so definite through designing, test, debugging.Phase shifter inserts the depth, angle of feed waveguide and different with the oscillator relative position in production operation, the capital causes the reflection coefficient difference of transmission signals, therefore the polarization conversion situation transmitted in dielectric phase shifter of signal just has difference, thereby influences signal transmission quality.
Phase shifter by the conventional method design, on this link of phase shifter of packing into, because involving the fixing of location, guiding and phase shifter must be bonding through glue etc., therefore can't realize assembly work with machine, and different because of the qualification of the difference of employee's individuality and operation cause consistency of product to be difficult to be guaranteed, thus, influence the straight-through qualification rate of product line, increased manufacturing cost.
Therefore, there is defective in prior art, needs to improve.
The utility model content
The purpose of this utility model is to provide a kind of tuner and feed waveguide and dielectric phase shifter, is used to receive the Ku wave band circularly polarized signal of satellite television.
The technical solution of the utility model is as follows:
A kind of tuner, it is provided with feed waveguide and dielectric phase shifter, and wherein, described dielectric phase shifter, described feed waveguide are provided with Access Division, draw-in groove respectively, are used to make described dielectric phase shifter and described feed waveguide to be mutually permanently connected.
Described tuner, wherein, described bayonet part and described draw-in groove are put in described dielectric phase shifter, described feed waveguide mutually.
Described tuner, wherein, described Access Division comprises first Access Division and second Access Division, described draw-in groove comprises the first suitable with it draw-in groove and second draw-in groove.
Described tuner, wherein, described dielectric phase shifter is provided with single dovetail portion or triangle afterbody.
A kind of dielectric phase shifter is used to have the tuner of feed waveguide, and wherein, described dielectric phase shifter is provided with Access Division or draw-in groove, is used to make described dielectric phase shifter and described feed waveguide to be mutually permanently connected.
Described dielectric phase shifter, wherein, described Access Division comprises first Access Division and second Access Division, perhaps, described draw-in groove comprises first draw-in groove and second draw-in groove.
Described dielectric phase shifter, wherein, it also is provided with single dovetail portion or triangle afterbody.
A kind of feed waveguide is used to have the tuner of dielectric phase shifter, and wherein, described feed waveguide is provided with Access Division or draw-in groove, is used to make described dielectric phase shifter and described feed waveguide to be mutually permanently connected.
Described feed waveguide, wherein, described Access Division comprises first Access Division and second Access Division, perhaps, described draw-in groove comprises first draw-in groove and second draw-in groove.
Adopt such scheme, the utility model adapts to domestic direct broadcasting satellite industry development, the product of the good high-gain of a kind of integrated level high-reliability, low noise, low phase noise characteristic is provided, good high-fidelity reception has been arranged for simulation, digital compression satellite-signal; Made things convenient for production, guaranteed consistency of product, and tuner of the present utility model is light and handy, attractive in appearance, reliable, and improved product line qualification rate, reduced manufacturing cost, promoted economic benefit.
Description of drawings
Fig. 1 is the feed waveguide design schematic diagram of prior art;
Fig. 2 is a feed waveguide design schematic diagram of the present utility model;
Fig. 3 is a kind of execution mode schematic diagram of dielectric phase shifter of the present utility model;
Fig. 4 A is a kind of execution mode scheme of installation of dielectric phase shifter of the present utility model;
Fig. 4 B is a kind of execution mode scheme of installation of feed waveguide of the present utility model;
Fig. 4 C is the combination schematic diagram of feed waveguide of the present utility model and dielectric phase shifter;
Fig. 5 is the structural representation of tuner of the present utility model.
Embodiment
Below preferred embodiment of the present utility model is described in detail.
The utility model provides a kind of dielectric phase shifter, is used to have the tuner of feed waveguide, is provided with the Access Division at described dielectric phase shifter, is used to make described dielectric phase shifter and described feed waveguide to be mutually permanently connected.It can be provided with a plurality of Access Divisions, a plurality of Access Divisions can also be symmetrical arranged.Wherein, an embodiment is provided with the first monolateral or symmetrical Access Division 101 and second Access Division 102 at described dielectric phase shifter as shown in Figure 3.At this moment, corresponding draw-in groove is set in the described feed waveguide that need are installed.
In the specific implementation, can also be provided with draw-in groove, be used to make described dielectric phase shifter and described feed waveguide to be mutually permanently connected at described dielectric phase shifter.It can be provided with a plurality of draw-in grooves, a plurality of draw-in grooves can also be symmetrical arranged.At this moment, corresponding Access Division is set in the described feed waveguide that need are installed.
Certainly, the dielectric phase shifter of other shape can be set also, as long as it can realize the function of being correlated with, and can be simple, firm fixedly connected with the feed waveguide and get final product.For example, described dielectric phase shifter has convex ridge portion, and described feed waveguide has concave part; Perhaps both are put mutually, promptly described dielectric phase shifter has concave part, and described feed waveguide has convex ridge portion; Concave part and convex ridge portion can be interference fit, can also be after installation that both are bonding.The utility model is not done extra qualification to various feasible real-time modes.
As shown in Figure 3, described dielectric phase shifter can also be provided with single dovetail portion 103; Help reducing wave reflection like this.Also the triangle afterbody can be set, for example isosceles triangle afterbody, oblique triangle afterbody or the like, the utility model does not specifically limit various application modes, as long as can reduce wave reflection.
As shown in Figure 2, the utility model also provides a kind of feed waveguide, is used to have the tuner of dielectric phase shifter, is provided with draw-in groove in described feed waveguide, is used to make described dielectric phase shifter and described feed waveguide to be mutually permanently connected.At this moment, corresponding Access Division is set on described dielectric phase shifter.According to the installation site of dielectric phase shifter, a plurality of draw-in grooves can be set, a plurality of draw-in grooves can also be symmetrical arranged.For example, described draw-in groove comprises first draw-in groove and second draw-in groove; At this moment, corresponding first Access Division and second Access Division are set on described dielectric phase shifter.
In the specific implementation, can also be provided with the Access Division, be used to make described dielectric phase shifter and described feed waveguide to be mutually permanently connected in described feed waveguide.At this moment, corresponding draw-in groove is set on described dielectric phase shifter.According to the installation site of dielectric phase shifter, a plurality of Access Divisions can be set, a plurality of Access Divisions can also be symmetrical arranged.For example, described Access Division comprises first Access Division and second Access Division; At this moment, corresponding first draw-in groove and second draw-in groove are set on described dielectric phase shifter.
And on the basis of above-mentioned feed waveguide and dielectric phase shifter, the utility model also provides a kind of tuner, and it is provided with above-mentioned feed waveguide and dielectric phase shifter.Wherein, described dielectric phase shifter, described feed waveguide are provided with Access Division, draw-in groove respectively, are used to make described dielectric phase shifter and described feed waveguide to be mutually permanently connected.And described dielectric phase shifter, described feed waveguide can also be put described bayonet part and described draw-in groove mutually.That is, can the Access Division be set, in described feed waveguide correspondence draw-in groove be set simultaneously at described dielectric phase shifter; Perhaps, can draw-in groove be set, in described feed waveguide correspondence the Access Division be set simultaneously at described dielectric phase shifter; Specifically same as above, the utility model is not done additional limits to this, only needs that described dielectric phase shifter and described feed waveguide are mutually permanently connected and gets final product.
For example, described Access Division comprises first Access Division and second Access Division, and described draw-in groove comprises the first suitable with it draw-in groove and second draw-in groove; Both can be interference fit, can also be after installation that both are bonding.
For example, shown in Fig. 4 A, Fig. 4 B and Fig. 4 C, be the feed waveguide 200 of described tuner and the combination schematic diagram of dielectric phase shifter 100; Shown in Fig. 4 A, on dielectric phase shifter 100, be provided with two Access Divisions: first Access Division 101 and second Access Division 102; Shown in Fig. 4 B, have circular waveguide 205 and similar conical corrugated horn feed 204 in the feed waveguide 200, corresponding four adaptive clamp bar slots also have been symmetrical arranged with the Access Division of dielectric phase shifter 100, the straight line that forms of first draw-in groove 202 and second draw-in groove 203 wherein, vertical mutually with the 3rd draw-in groove 201 with the straight line that the 4th draw-in groove forms, owing to do not indicate the 4th draw-in groove among angular relationship Fig. 4 B; The combination of the combination of the 3rd draw-in groove 201 and the 4th draw-in groove and first draw-in groove 202 and second draw-in groove 203, suitable with the combination of first Access Division 101 and second Access Division 102 respectively.Shown in Fig. 4 C, dielectric phase shifter 100 becomes 45 degree to tilt to be installed in the feed waveguide 200 with the polarization probe prolongation (oscillator) of feed waveguide 200, and first Access Division 101 and second Access Division 102 are installed in first draw-in groove 202 and second draw-in groove 203.
Shown in Fig. 4 A and Fig. 4 B, the design of the bayonet socket of phase shifter has guaranteed that the depth of phase shifter insertion waveguide just is a draw-in groove position, the design of the draw-in groove of feed waveguide mouth is to guarantee that the insertion angle of phase shifter and oscillator are 45 degree, and the two definite depended on qualitative effect to the Phasing of phase shifter.The installation method of phase shifter, one holds waveguide, keep the feed mouth towards oneself, the Building F of tuner down, another hand is taken phase shifter, the dovetail direction is aimed at the feed mouth, keep the angle of 45 upper right degree of lower-left to insert in the waveguide, fit like a glove to till putting in place with phase shifter bayonet socket and feed waveguide mouth draw-in groove along draw-in groove.Shown in Fig. 4 A, Fig. 4 B and Fig. 4 C, when design, can utilize the draw-in groove of feed waveguide mouth and the bayonet socket of phase shifter, determine that phase shifter inserts the angle and the depth of waveguide.To avoid product in transportation with move in the process, cause phase shifter not become flexible, come off, install and can drip one to two 502 instant glue along draw-in groove behind the phase shifter and be adhesively fixed, guarantee the long reliably working of product.
As shown in Figure 5, the utility model tuner comprises feed waveguide, dielectric phase shifter, low noise amplifier, band pass filter, frequency mixer, low pass filter, local oscillator, intermediate frequency amplifier, also comprises power unit.
The circularly polarized signal that receives from satellite antenna reflexes to the feed waveguide, the feed waveguide transfers to the good dielectric phase shifter in location after collecting signal, dielectric phase shifter transfers circularly polarized signal to the linear polarization signal, reach oscillator again and convert field signal on the microstrip circuit the signal of telecommunication, after the wide frequency low-noise amplifier that the high electron mobility field effect transistor (HEMT) of two-stage constitutes amplifies, power about 25dB is provided, the band pass filter filtering out of band signal and the mirror image interference signal that suppress radio frequency again by mirror image, carry out mixing sending to the high electron mobility fet gate that is operated in the inelastic region and the local oscillation signal of drain electrode, amplify by intermediate frequency amplifier after selecting intermediate-freuqncy signal by low pass filter then, provide the gain of about 55dB to export to the F head through impedance inverter circuit (75 Europe are changeed in 50 Europe).
Adopt scheme of the present utility model, can adapt to domestic direct broadcasting satellite industry development, satisfy the demand of new " the village village is logical " engineering, the product of the good high-gain of a kind of integrated level high-reliability, low noise, low phase noise characteristic is provided market.The utility model tuner for simulation, the digital compression satellite-signal has good high-fidelity reception, the environmental simulation experiment test of meticulous in addition production technology and 100% strictness is guaranteed the performance of product excellence.
The utility model tuner has made things convenient for production greatly by the improvement of above-mentioned phase shifter and feed, has guaranteed consistency of product.Adopt the power supply IC of high integration, advanced microstrip circuit design to dwindle the area of pcb board in addition, for example can reach complete machine PCB size and only be 11.4 square centimeters, and now be commonly 16 to 20 square centimeters of sizes in the industry, make the utility model tuner more light and handy, attractive in appearance, reliable, and raising product line qualification rate, reduction manufacturing cost, lifting economic benefit are had the effect of getting instant result.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection range of the utility model claims.
Claims (9)
1, a kind of tuner, it is provided with feed waveguide and dielectric phase shifter, it is characterized in that, and described dielectric phase shifter, described feed waveguide are provided with Access Division, draw-in groove respectively, are used to make described dielectric phase shifter and described feed waveguide to be mutually permanently connected.
2, tuner according to claim 1 is characterized in that, described bayonet part and described draw-in groove are put in described dielectric phase shifter, described feed waveguide mutually.
3, tuner according to claim 1 and 2 is characterized in that, described Access Division comprises first Access Division and second Access Division, and described draw-in groove comprises the first suitable with it draw-in groove and second draw-in groove.
4, tuner according to claim 1 and 2 is characterized in that, described dielectric phase shifter is provided with single dovetail portion or triangle afterbody.
5, a kind of dielectric phase shifter is used to have the tuner of feed waveguide, it is characterized in that described dielectric phase shifter is provided with Access Division or draw-in groove, is used to make described dielectric phase shifter and described feed waveguide to be mutually permanently connected.
6, dielectric phase shifter according to claim 4 is characterized in that, described Access Division comprises first Access Division and second Access Division, and perhaps, described draw-in groove comprises first draw-in groove and second draw-in groove.
7, dielectric phase shifter according to claim 4 is characterized in that, it also is provided with single dovetail portion or triangle afterbody.
8, a kind of feed waveguide is used to have the tuner of dielectric phase shifter, it is characterized in that described feed waveguide is provided with Access Division or draw-in groove, is used to make described dielectric phase shifter and described feed waveguide to be mutually permanently connected.
9, feed waveguide according to claim 8 is characterized in that, described Access Division comprises first Access Division and second Access Division, and perhaps, described draw-in groove comprises first draw-in groove and second draw-in groove.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201219736U CN201114420Y (en) | 2007-08-06 | 2007-08-06 | A high-frequency header and its feedback source wave guide and medium phase shifter |
| DE200820010356 DE202008010356U1 (en) | 2007-08-06 | 2008-08-01 | Low noise down converter as well as its supply source waveguide and dielectric phase shifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201219736U CN201114420Y (en) | 2007-08-06 | 2007-08-06 | A high-frequency header and its feedback source wave guide and medium phase shifter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201114420Y true CN201114420Y (en) | 2008-09-10 |
Family
ID=39942557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201219736U Expired - Fee Related CN201114420Y (en) | 2007-08-06 | 2007-08-06 | A high-frequency header and its feedback source wave guide and medium phase shifter |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN201114420Y (en) |
| DE (1) | DE202008010356U1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103647956A (en) * | 2013-12-02 | 2014-03-19 | 夏召祥 | Integrated high frequency head for receiving satellite TV signal |
| CN104638372A (en) * | 2015-03-09 | 2015-05-20 | 中国工程物理研究院应用电子学研究所 | Polarization-reconfigurable high-power microwave feed source |
-
2007
- 2007-08-06 CN CNU2007201219736U patent/CN201114420Y/en not_active Expired - Fee Related
-
2008
- 2008-08-01 DE DE200820010356 patent/DE202008010356U1/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103647956A (en) * | 2013-12-02 | 2014-03-19 | 夏召祥 | Integrated high frequency head for receiving satellite TV signal |
| CN104638372A (en) * | 2015-03-09 | 2015-05-20 | 中国工程物理研究院应用电子学研究所 | Polarization-reconfigurable high-power microwave feed source |
| CN104638372B (en) * | 2015-03-09 | 2017-05-03 | 中国工程物理研究院应用电子学研究所 | Polarization-reconfigurable high-power microwave feed source |
Also Published As
| Publication number | Publication date |
|---|---|
| DE202008010356U1 (en) | 2008-11-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20080910 Termination date: 20150806 |
|
| EXPY | Termination of patent right or utility model |