CN103595462A - KU-BAND satellite tuner - Google Patents
KU-BAND satellite tuner Download PDFInfo
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- CN103595462A CN103595462A CN201310576784.8A CN201310576784A CN103595462A CN 103595462 A CN103595462 A CN 103595462A CN 201310576784 A CN201310576784 A CN 201310576784A CN 103595462 A CN103595462 A CN 103595462A
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- antenna feed
- horn antenna
- nosing
- low noise
- band satellite
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Abstract
The invention discloses a KU-BAND satellite tuner comprising horn antenna feed sources and waveguides. The horn antenna feed sources and the waveguides are arranged separately and are fixedly connected through connection portions; the dielectric coefficient of dielectric materials for manufacturing the horn antenna feed sources is 2-2.5. The cross section of each horn antenna feed source is circular or oval, the head end of each horn antenna feed source is provided with circular or oval protrusive edges, the height of the protrusive edges is less than or equal to one quarter of the wave length, the width of the protrusive edges is greater than or equal to 0.5mm, the height difference of the protrusive edges is less than or equal to one quarter of the wave length, and the interval between the protrusive edges is less than or equal to one eighth of the wave length. The horn antenna feed sources are made of the plastic dielectric materials. The waveguides make close contact with and are connected with the horn antenna feed sources in parallel, and the number of the waveguides and the number of the horn antenna feed sources are 2-8 respectively, so that 2-8 corresponding satellite signals are received at the same time. The KU-BAND satellite tuner is convenient to manufacture and use and low in cost, and can receive more than two small-angle-different satellite signals at the same time.
Description
Technical field
The present invention relates to a kind of satellite signal receiving apparatus, relate in particular to a kind of KU-BAND satellite low noise block.
Background technology
Nowadays, via satellite transmission communication signal especially broadcast television signal application is very extensive.Satellite signal receiving apparatus is that satellite low noise block is the device of satellite-signal transmission system indispensability, and the sending and receiving of satellite-signal all needs this device.Conventional KU-BAND satellite low noise block comprises horn antenna feed and waveguide, and circuit arrangement.Existing KU-BAND satellite low noise block, its horn antenna feed and waveguide are an integral body as shown in Figure 1, with metal material, make, volume and weight is all larger, complex structure, manufacture is inconvenient, cost is high; Can not receive two above angle difference (being less than 3 degree) satellite-signals simultaneously, use inconvenient; And useful life is low, flexibility ratio is poor.
Summary of the invention
The technical problem to be solved in the present invention be to provide a kind of manufacture easy to use, cost is low, can receive the KU-BAND satellite low noise blocks of two above angle difference satellite-signals simultaneously.
In order to solve the problems of the technologies described above, KU-BAND satellite low noise block of the present invention, comprises horn antenna feed and waveguide, and described horn antenna feed sets up separately with waveguide and is fixedly connected with by connecting portion; Preparing its dielectric coefficient of dielectric material that described horn antenna feed adopts is 2-2.5.
Described horn antenna feed head cross section is provided with circle or oval nosing, nosing height≤1/4 wavelength, nosing width >=0.5 millimeter, the nosing discrepancy in elevation≤1/4 wavelength, nosing spacing≤1/8 wavelength for circular or oval, head end.
Each is connected with described waveguide and horn antenna feed 2-8 and receives a corresponding 2-8 satellite-signal to realize simultaneously near contacting side by side.
The connecting portion of described horn antenna feed and waveguide is rectangle, and the connecting portion of horn antenna feed is rectangular cylinder, and the connecting portion of waveguide is rectangular cavity, and the connecting portion of horn antenna feed inserts in the connecting portion of waveguide.
Described horn antenna feed adopts plastics dielectric material to make.
Adopt structure of the present invention, because horn antenna feed and waveguide split arrange, preparing its dielectric coefficient of dielectric material that described horn antenna feed adopts is 2-2.5, especially adopt plastics dielectric material, simple in structure, easily manufactured, material consumption is few, low price, and cost is low; Can realize miniaturization and lightweight; Can overcome the defect that signal is interfered mutually, therefore waveguide can each be connected with more than 2 near contacting side by side with horn antenna feed, can receive two above angle difference satellite-signals simultaneously, and can flexible assembling, portably use all and facilitate, can equate to receive two above angle difference satellite-signals by coupling transmission waveguide and horn antenna feed number of combinations simultaneously, also the reception that transmission waveguide is realized a satellite-signal can be mated separately, the needs that active user receives two above angle difference satellite-signals simultaneously can be met completely; Owing to using plastics dielectric material and split modular structure, can conveniently replace use, long service life.The present invention is simple in structure, small and exquisite, light.If need to receive two above angle difference satellite-signals simultaneously, can flexible assembling, horn antenna feed can be plane near the contact-making surface of contact mutually side by side, compact conformation, light after assembling, reception is good.When coupling transmission waveguide receives a satellite-signal separately, its reception is also suitable with the tuner of prior art, can replace the tuner of prior art, as contrast after tested, the tuner of existing metal horn antenna feed, gain be generally 11-14dB, general > 25 dB of polarization isolation, standing-wave ratio general≤1.5, lobe that-10dB is corresponding is wide is generally 75 ± 10; Tuner of the present invention, gains as 13dB left and right, polarization isolation 30 dB left and right, standing-wave ratio 1.1-1.35, wide can the adjustment according to covering of lobe that-10dB is corresponding, wherein, and best results when the dielectric coefficient of dielectric material is 2.25.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art of the present invention;
Fig. 2 is structural representation of the present invention;
Fig. 3 is the structural representation of horn antenna feed of the present invention;
Fig. 4 is a plurality of satellite low noise blocks of the present invention structural representations of assembling side by side;
Fig. 5 is horn antenna feed stereogram of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail:
As shown in Figure 2, KU-BAND satellite low noise block of the present invention comprises horn antenna feed 1 and waveguide 2.Horn antenna feed 1 sets up separately and is fixedly connected with by connecting portion with waveguide 2.Preparing its dielectric coefficient of dielectric material that described horn antenna feed adopts is 2-2.5, preferably adopts plastics dielectric material, the dielectric coefficient of dielectric material preferably 2.25.
As preferred structure, horn antenna feed head cross section is provided with circle or oval nosing for circular or oval, head end, nosing height is that 1/4 wavelength also can be less than 1/4 wavelength, nosing width is 0.5 millimeter also can be greater than 0.5 millimeter, the nosing discrepancy in elevation is that 1/4 wavelength also can be less than 1/4 wavelength, and nosing spacing is that 1/8 wavelength also can be less than 1/8 wavelength.Can improve signal reception like this.As shown in Figure 3, best structure is: nosing position around adjacent lower than it by a paracentral circle nosing position; The second nosing 4 is identical with the 3rd nosing 3 positions with enclosing nosings by the adjacent surrounding two of a paracentral circle nosing 5; Reduce successively with the peripheral nosing position by the adjacent surrounding's two circle nosings of a paracentral circle nosing, its reception is best.Can certainly adopt the structure of variation, as shown in Figure 4 structure etc.
As shown in Figure 2, horn antenna feed can be fixedly connected with by inserting mode with waveguide.Also can adopt other conventional be fixedly connected with mode and connect.Preferred version is, as shown in Figure 5, the connecting portion of horn antenna feed and waveguide is rectangle, and the connecting portion of horn antenna feed is rectangular cylinder, and the connecting portion of waveguide is rectangular cavity, and the connecting portion of horn antenna feed inserts in the connecting portion of waveguide.The connecting portion of horn antenna feed and waveguide also can adopt other shapes, as circle, interior hexagonal, interior anise etc.
As shown in Figure 4, the present invention can realize miniaturization, can flexible assembling, to receive two above angle difference satellite-signals simultaneously, can by two above waveguides and horn antenna feed, each be connected setting near contact side by side, when horn antenna feed head cross section is circular, horn antenna feed can be plane near the contact-making surface of contact mutually side by side, horn antenna feed head cross section also can not need face contact while being oval, quantity can be 2, also can there is 2-8 even more than 8, can meet the current needs that simultaneously receive corresponding two above angle difference (being less than 3 degree) satellite-signals.From current maximum existence, receive the actual needs of 8 angle difference (being less than 3 degree) satellite-signal, through test, its reception can be satisfied the demand completely simultaneously.And prior art cannot realize this object.When realizing the integrated reception of many satellite-signals, can excise in right amount the common joint face of horn antenna feed is that face contacts or oval processing of horn antenna feed maximum transversal ring area equivalentization realized, processing mode is versatile and flexible, and this spline structure is compacter, and does not have signal and mutually interfere.And, all right global formation of its waveguide part when a plurality of satellite low noise block combination of needs, making and use are all simple and convenient, can also save material, raise the efficiency, reduce costs.Can certainly receive single satellite-signal.
In order further to improve reception, reduce again material consumption and weight simultaneously, be convenient to processing, the connecting portion of horn antenna feed is provided with the cylindrical cavity 6 that connects end face.Multistage echelon cylindrical cavity can be set.
For the ease of hand-held, easy to loading and unloading, also save material simultaneously, the side of described horn antenna feed is provided with depression, as shown in Figure 5.A side is provided with depression therein, also can in a plurality of sides, be provided with depression simultaneously.
Claims (13)
1. a KU-BAND satellite low noise block, comprises horn antenna feed (1) and waveguide (2), it is characterized in that: described horn antenna feed (1) sets up separately and is fixedly connected with by connecting portion with waveguide (2); Preparing its dielectric coefficient of dielectric material that described horn antenna feed adopts is 2-2.5.
2. KU-BAND satellite low noise block according to claim 1, it is characterized in that: described horn antenna feed head cross section is provided with circle or oval nosing for circular or oval, head end, nosing height≤1/4 wavelength, nosing width >=0.5 millimeter, the nosing discrepancy in elevation≤1/4 wavelength, nosing spacing≤1/8 wavelength.
3. KU-BAND satellite low noise block according to claim 2, is characterized in that: nosing position around adjacent lower than it by a paracentral circle nosing position.
4. KU-BAND satellite low noise block according to claim 3, is characterized in that: the second nosing (4) is identical with the 3rd nosing (3) position with enclosing nosings by the adjacent surrounding two of a paracentral circle nosing (5).
5. according to the KU-BAND satellite low noise block described in claim 3 or 4, it is characterized in that: reduce successively with the peripheral nosing position by the adjacent surrounding's two circle nosings of a paracentral circle nosing.
6. according to the KU-BAND satellite low noise block described in claim 1 or 2 or 3 or 4, it is characterized in that: described horn antenna feed is fixedly connected with by inserting mode with waveguide.
7. KU-BAND satellite low noise block according to claim 6, it is characterized in that: the connecting portion of described horn antenna feed and waveguide is rectangle, the connecting portion of horn antenna feed is rectangular cylinder, the connecting portion of waveguide is rectangular cavity, and the connecting portion of horn antenna feed inserts in the connecting portion of waveguide.
8. according to the KU-BAND satellite low noise block described in claim 1 or 2 or 3 or 4 or 7, it is characterized in that: each is connected with described waveguide and horn antenna feed 2-8 and receives a corresponding 2-8 satellite-signal to realize simultaneously near contacting side by side.
9. according to the KU-BAND satellite low noise block described in claim 1 or 2 or 3 or 4 or 7, it is characterized in that: the connecting portion of described horn antenna feed is provided with the cylindrical cavity (6) that connects end face.
10.1 according to the KU-BAND satellite low noise block described in claim 1 or 2 or 3 or 4 or 7, it is characterized in that: the side of described horn antenna feed is provided with depression.
11. according to the KU-BAND satellite low noise block described in claim 1 or 2 or 3 or 4 or 7, it is characterized in that: described horn antenna feed adopts plastics dielectric material to make.
12. KU-BAND satellite low noise blocks according to claim 8, is characterized in that: described horn antenna feed is plane near the contact-making surface of contact mutually side by side.
13. KU-BAND satellite low noise blocks according to claim 12, is characterized in that: describedly near contact, connect waveguide global formation is set side by side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310576784.8A CN103595462B (en) | 2013-11-19 | 2013-11-19 | KU BAND satellite low noise blocks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310576784.8A CN103595462B (en) | 2013-11-19 | 2013-11-19 | KU BAND satellite low noise blocks |
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| Publication Number | Publication Date |
|---|---|
| CN103595462A true CN103595462A (en) | 2014-02-19 |
| CN103595462B CN103595462B (en) | 2017-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310576784.8A Active CN103595462B (en) | 2013-11-19 | 2013-11-19 | KU BAND satellite low noise blocks |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108281751A (en) * | 2018-03-22 | 2018-07-13 | 陕西维萨特科技股份有限公司 | A kind of high performance microwave splash plate feed source antenna |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4963878A (en) * | 1986-06-03 | 1990-10-16 | Kildal Per Simon | Reflector antenna with a self-supported feed |
| CN201365249Y (en) * | 2009-02-18 | 2009-12-16 | 深圳翔成电子科技有限公司 | KU band binary multi-output satellite low noise block |
| CN201365248Y (en) * | 2009-02-18 | 2009-12-16 | 深圳翔成电子科技有限公司 | Double output circular polarization satellite low noise block |
| CN202282441U (en) * | 2010-10-14 | 2012-06-20 | 佛山市健博通电讯实业有限公司 | Dual-polarized parabolic antenna feed source |
| CN203554440U (en) * | 2013-11-19 | 2014-04-16 | 郴州希典科技有限公司 | Ku-band satellite LNB |
-
2013
- 2013-11-19 CN CN201310576784.8A patent/CN103595462B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4963878A (en) * | 1986-06-03 | 1990-10-16 | Kildal Per Simon | Reflector antenna with a self-supported feed |
| CN201365249Y (en) * | 2009-02-18 | 2009-12-16 | 深圳翔成电子科技有限公司 | KU band binary multi-output satellite low noise block |
| CN201365248Y (en) * | 2009-02-18 | 2009-12-16 | 深圳翔成电子科技有限公司 | Double output circular polarization satellite low noise block |
| CN202282441U (en) * | 2010-10-14 | 2012-06-20 | 佛山市健博通电讯实业有限公司 | Dual-polarized parabolic antenna feed source |
| CN203554440U (en) * | 2013-11-19 | 2014-04-16 | 郴州希典科技有限公司 | Ku-band satellite LNB |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108281751A (en) * | 2018-03-22 | 2018-07-13 | 陕西维萨特科技股份有限公司 | A kind of high performance microwave splash plate feed source antenna |
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| CN103595462B (en) | 2017-03-29 |
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Effective date of registration: 20180815 Address after: 423038 Gauss, Baer Industrial Park, Guan Shan cave street, Suxian District, Chenzhou, Hunan Patentee after: GOSPELL DIGITAL TECHNOLOGY Co.,Ltd. Address before: 423000 Gauss Baer Industrial Park, Bailu Tang, Suxian District, Chenzhou, Hunan Patentee before: CHENZHOU XIDIAN TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20230508 Address after: 201, 301, Building 6, Changchong Innovation and Entrepreneurship Park, No. 1609, the Nanling Mountain Avenue, Chenzhou City, Hunan Province, 423000 Patentee after: Chenzhou Shitong Technology Co.,Ltd. Address before: 423038 Gauss, Baer Industrial Park, Guan Shan cave street, Suxian District, Chenzhou, Hunan Patentee before: GOSPELL DIGITAL TECHNOLOGY Co.,Ltd. |