CN101656353A - Linearly polarized antenna - Google Patents
Linearly polarized antenna Download PDFInfo
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- CN101656353A CN101656353A CN200810214222A CN200810214222A CN101656353A CN 101656353 A CN101656353 A CN 101656353A CN 200810214222 A CN200810214222 A CN 200810214222A CN 200810214222 A CN200810214222 A CN 200810214222A CN 101656353 A CN101656353 A CN 101656353A
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Abstract
A linearly polarized antenna comprises a body which can define a head part and a body part. The head part is provided with a plurality of first ring-shaped parts in different diameters, the first ring-shaped parts are distributed in a coaxial manner by taking the axial direction of the body as the axis, and first ring-shaped grooves are formed among the first ring-shaped parts. The body section isprovided with a plurality of second ring-shaped parts in different diameters, the second ring-shaped parts are distributed in a coaxial manner by taking the axial direction of the body as the axis, and second ring-shaped grooves are formed among the second ring-shaped parts. The extension directions of the first ring-shaped parts are opposite to the extension directions of the second ring-shapedparts.
Description
Technical field
The present invention is relevant with satellite receiving equipment, and particularly relevant for a kind of linearly polarized antenna, it is mainly used in lnb (low noise block down-converter LNB), to replace known remittance antenna.
Background technology
In recent years because wireless telecommunications and multimedia fast development are consumed masses multimedia demand is constantly improved, and with satellite television, single satellite programming has not satisfied popular institute to be asked, integrating the multi-satellite program is present trend.Early stage multi-satellite receiving system is to single lnb (low noise block down-converter with single reception dish (dish); Hereinafter to be referred as LNB); Afterwards, the dealer considered the problem of cost and shallow storage space, and the multi-satellite receiving system is changed to develop into single reception dish to a plurality of LNB, to reach the purpose that receives the multi-satellite signal.
Yet, because the multi-satellite orientation angles is very approaching, to a plurality of LNB modes, the distance that receives between the LNB is too close with causing with single reception dish for this kind, and the signal that each satellite the is launched receiving end satellite that will connect causes the problem of phase mutual interference (cross-satellite).
Be head it off, many reception satellite systems must be designed to specific directivity with the remittance antenna (feed horn) of LNB, can solve the problem of satellite signals phase mutual interference.See also Figure 10 to Figure 12, it is general common remittance antenna; See also Figure 10 and Figure 11, one imports antenna 1 has the other ripple inhibition of two rings (2turns) structure 2; See also Figure 12, one imports antenna 3 has the other ripple inhibition of three rings (3turns) structure 4.Above-mentioned remittance antenna suppresses the number that structure increases number of rings by other ripple, and the directivity of antenna receiving gain (gain pattern) will be improved.
But more other ripple suppresses ring will make the size that imports antenna become big.Is example with LNB at the employed remittance antenna of Ku frequency range (Ku band), and the diameter of this remittance antenna (1) is about 45mm, and three ring diameters of this remittance antenna (3) are about 51mm.In other words, known remittance antenna increases the not enough demand of dealing with the multi-satellite receiving system of method for designing that receiving gain, directivity and other ripple suppress effect via increasing number of rings.Known remittance antenna is if will reach this requirement, and its size will increase according to number of rings, has because of the usage space restriction causes application to go up not convenient problem.
To sum up institute is old, and known remittance antenna has above-mentioned disappearance and haves much room for improvement.
Summary of the invention
The object of the present invention is to provide a kind of linearly polarized antenna, the signal that it can receive multi-satellite simultaneously has the characteristic that overcomes the mutual interference of satellite signals phase.Simultaneously its volume is little compared to known remittance antenna, has the usage space less-restrictive and uses characteristic easily.
For achieving the above object, linearly polarized antenna provided by the invention includes: a body can define a head and the whole body portion; This head has first annulus that majority has different-diameter, and those first annulus to being that the axle center is the coaxial manner laying, form first annular recess with this body shaft between those first annulus; This body portion has second annulus that majority has different-diameter, and those second annulus to being that the axle center is the coaxial manner laying, form second annular recess with this body shaft between those second annulus; The bearing of trend of those first annulus and those second annulus is opposite each other.
Thus, linearly polarized antenna provided by the present invention is by said structure, and it can make this linearly polarized antenna that specific directivity be arranged via those first annulus, even receive the signal of multi-satellite simultaneously; Reception period, satellite signals then can the phase mutual interference.Moreover this linearly polarized antenna is little compared to known remittance antenna volume, has the usage space less-restrictive and uses characteristic easily.Generally speaking, the present invention is compared to known technology, and this linearly polarized antenna has the mutual interference of the satellite signals of overcoming phase and uses characteristic easily.
Description of drawings
Fig. 1 is the enforcement aspect of the present invention's first preferred embodiment.
The part assembly exploded view of Fig. 2 the present invention first preferred embodiment, the position of main show ontology.
The main body structure schematic diagram of Fig. 3 the present invention first preferred embodiment.
Fig. 4 is the gain radiation field shape figure of the present invention's first preferred embodiment.
Fig. 5 is the known gain radiation field shape figure that imports antenna with the other ripple inhibition of two rings formula.
Fig. 6 is the reflection coefficient simulation drawing of the present invention's first preferred embodiment.
Fig. 7 is the enforcement aspect of the present invention's second preferred embodiment.
Fig. 8 is the main body structure schematic diagram of the present invention's second preferred embodiment.
Fig. 9 is the gain radiation field shape figure of the present invention's second preferred embodiment.
Figure 10 is the stereogram of known remittance antenna.
Figure 11 is the structural representation of known remittance antenna.
Figure 12 is the structural representation of another known remittance antenna.
Primary clustering symbol description in the accompanying drawing
Linearly polarized antenna (10) body (20)
Head (22) first annulus (221)
First annular recess (222) body portion (24)
Second annulus (241) second annular recess (242)
Waveguide pipe (40) lid (50)
Linearly polarized antenna (12) body (60)
Head (62) first annulus (621)
First annular recess (622) body portion (64)
Second annulus (641) the 3rd annulus (642)
Second annular recess (643) screw thread (644)
Waveguide pipe (70)
Embodiment
In order to describe structure of the present invention, feature and effect place in detail, lift following preferred embodiment and conjunction with figs. and elaborate.
See also Fig. 1 to Fig. 3, the linearly polarized antenna 10 that the present invention's first preferred embodiment is provided includes: a body 20, a waveguide pipe 40 and a lid 50.
This body 20 can define a head 22 and the whole body portion 24; This head 22 has two first annulus 221 with different-diameter, and the quantity of those first annulus 221 only for illustrating, is not construed as limiting important document.Those first annulus 221 axially are that the axle center is the coaxial manner laying with this body 20, form one first annular recess 222 between those first annulus 221.Those first annulus, 221 major decision antenna gains, directivity, and other ripple suppresses.This body portion 24 has two second annulus 241 with different-diameter, and the quantity of those second annulus 241 only for illustrating, is not construed as limiting important document.Those second annulus 241 axially are that the axle center is the coaxial manner laying with this body 20, form second annular recess 242 between those second annulus 241; Those second annulus 241 have specified impedance, to reach the purpose as the characteristic impedance coupling; The bearing of trend of those second annulus 241 and those first annulus 221 is opposite each other.This body 20 is selected from Merlon (PC; Polycarbonate), polyethylene (PE; Polyethylene), polypropylene (PP; Polypropylene), polystyrene (PS; Polystyrene) and acrylonitrile-butadiene-styrene copolymer (ABS; Acrylonitrile-butadiene-styrene) wherein a kind of material is made; In the present embodiment, this body 20 is selected from Merlon (PC; Polycarbonate) material is an example, only for illustrating, is not construed as limiting important document at this.Outmost turns in those second annulus 241, its purpose are this body 20 is fixed in this waveguide pipe 40 and can mates reflection coefficient simultaneously; All the other those second annulus, 241 major decision antenna reflection coefficient and receiving gains.
This waveguide pipe 40 is arranged in this body 20, and this waveguide pipe 40 is covered this second annulus 241.Wherein, the angle of this body 20 and row ripple direction, 0 degree advances direction for wavefront; These body 20 directions are 0 degree, and 180 degree directions of this body 20 are these waveguide pipe 40 directions.
This lid 50 is sheathed on this body 20 outsides, and this lid 50 covers this body 20 and this waveguide pipe 40 ends, in order to protect this body 20.
Via said structure, different circle length are about quarter-wave multiple in those first annulus 221, and those first annulus 221 can increase the other ripple of different frequency and suppress in the structure length of difference circle; In other words, the quantity that increases those first annulus 221 helps to increase directivity and receiving gain, those first annulus, 221 employed different-diameters will suppress the other ripple of different angles, and the angle of ripple is big more by big more inhibition of diameter of this first annulus 221.The interior different circle length of outmost turns structure are about 1/2nd wavelength in those second annulus 241, and different length can mate reflection coefficient and the receiving gain in the different frequency bands.Thus, present embodiment provides this linearly polarized antenna 10, and it can make electromagnetic wave will produce refraction or reflection characteristic via dielectric material, increases the purpose that specific antenna gain, directivity and other ripple suppress to reach.
Please cooperate and consult Fig. 4 and Fig. 5, the present embodiment choosing is example with LNB in the Ku frequency range, and the frequency range of Ku frequency range is 10.7GHz～12.75GHz, and choosing is that example is in unreflected free space (free space with 12GHz in the present embodiment; Air) analog result.Wherein, Fig. 4 is the gain radiation field shape figure of this linearly polarized antenna (10); Fig. 5 is the gain radiation field shape figure that the other ripple inhibition of two rings formula imports antenna; Via comparing of this two width of cloth figure, because this linearly polarized antenna 10 has dielectric loss, so the gain of about 0.5dB less of this linearly polarized antenna 10, on average about 23 degree of 3dB gain frequency range, about 38 degree of 10dB frequency range are suppressed at more than the 20dB greater than the 60 other ripples of spending.
Please cooperate and consult Fig. 6, it is the reflection coefficient simulation drawing of this linearly polarized antenna 10; Can learn that in view of the above the reflection coefficient of this linearly polarized antenna 10 has more than the 20dB in the Ku frequency range.
Thus, this linearly polarized antenna 10 provided by the present invention, it can make this linearly polarized antenna 10 that specific directivity be arranged via those first annulus 221, even receive the signal of multi-satellite simultaneously; Reception period, satellite signals then can the phase mutual interference.Moreover this linearly polarized antenna is little compared to known remittance antenna volume, has the usage space less-restrictive and uses characteristic easily.Generally speaking, the present invention is compared to known technology, and this linearly polarized antenna has the mutual interference of the satellite signals of overcoming phase and uses characteristic easily.
See also Fig. 7 and Fig. 8, the linearly polarized antenna 12 that the present invention's second preferred embodiment is provided includes: a body 60 and a waveguide pipe 70.
This body 60 can define a head 62 and the whole body portion 64; This head 62 has two first annulus 621 with different-diameter, and the quantity of those first annulus 621 only for illustrating, is not construed as limiting important document.Those first annulus 621 axially are that the axle center is the coaxial manner laying with this body 60, form first annular recess 622 between those first annulus 621.This body portion 64 has two second annulus 641 and one the 3rd annulus 642 with different-diameter; The quantity of those second annulus 641 only for illustrating, is not construed as limiting important document.Those second annulus 641 axially are that the axle center is the coaxial manner laying with this body 60, form one second annular recess 643 between those second annulus 641; The bearing of trend of those first annulus 621 and those second annulus 641 is opposite each other.The 3rd annulus 642 is around these second annulus, 641 outsides of outermost, and the 3rd annulus 642 axially is the axle center with this body 60; The 3rd annulus 642 interior sidewall surface have a screw thread 644, in order to this waveguide pipe 70 of installing.This body 60 is selected from Merlon (PC; Polycarbonate), polyethylene (PE; Polyethylene), polypropylene (PP; Polypropylene), polystyrene (PS; Polystyrene) and acrylonitrile-butadiene-styrene copolymer (ABS; Acrylonitrile-butadiene-styrene) wherein a kind of material is made; In the present embodiment, this body 60 is selected from Merlon (PC; Polycarbonate) material is an example, only for illustrating, is not construed as limiting important document at this.
This waveguide pipe 70 is arranged in this body 60, and this waveguide pipe 70 is covered those second annulus 641.Wherein, the 3rd annulus 642 covers the junction of this waveguide pipe 70 and this second annulus 641.
Via said structure, this linearly polarized antenna 12 replaces the described lid of first preferred embodiment via the 3rd annulus 642, and it can reach the purpose of this second annulus 641 of protection equally.Please cooperate and consult Fig. 9, this linearly polarized antenna 12 has can reach the effect that this first preferred embodiment can be reached.Thus, present embodiment can reach the effect identical with first preferred embodiment equally, and provides another to implement aspect.
To sum up institute is old, linearly polarized antenna provided by the present invention, and it can make this linearly polarized antenna that specific directivity is arranged via first annulus of body, even receive the signal of multi-satellite simultaneously; Reception period, satellite signals then can the phase mutual interference.Moreover this linearly polarized antenna is little compared to known remittance antenna volume, has the usage space less-restrictive and uses characteristic easily.Generally speaking, the present invention is compared to known technology, and this linearly polarized antenna has the mutual interference of the satellite signals of overcoming phase and uses characteristic easily.
The present invention is disclosed constituent components in embodiment, only for illustrating, is not to be used for limiting the scope of the invention, the alternative or variation of other equivalent elements, and the claim scope that also should be the present patent application contains.
Claims (7)
1, a kind of linearly polarized antenna includes:
One body can define a head and the whole body portion; This head has first annulus that majority has different-diameter, and those first annulus to being that the axle center is the coaxial manner laying, form first annular recess with this body shaft between those first annulus; This body portion has second annulus that majority has different-diameter, and those second annulus to being that the axle center is the coaxial manner laying, form second annular recess with this body shaft between those second annulus; The bearing of trend of those first annulus and those second annulus is opposite each other.
2, according to the described described linearly polarized antenna of claim 1, wherein, comprise a waveguide pipe that is arranged in this body, this waveguide pipe is covered this second annulus.
3, according to the described described linearly polarized antenna of claim 2, wherein, comprise a lid that is sheathed on this body outside, this lid covers this body and this waveguide pipe end.
4, according to the described described linearly polarized antenna of claim 2, wherein, this body portion has the 3rd annulus around this second annulus outside, the 3rd annulus with this body shaft to being the axle center; The 3rd annulus covers the junction of this waveguide pipe and this second annulus.
5, according to the described described linearly polarized antenna of claim 4, wherein, the 3rd annulus interior sidewall surface has screw thread, in order to this waveguide pipe of installing.
6, according to the described described linearly polarized antenna of claim 1, wherein, this body is selected from wherein a kind of material of Merlon, polyethylene, polypropylene, polystyrene and acrylonitrile-butadiene-styrene copolymer made.
7, according to the described described linearly polarized antenna of claim 1, wherein, those second annulus have specified impedance, reach the characteristic impedance coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810214222A CN101656353A (en) | 2008-08-21 | 2008-08-21 | Linearly polarized antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810214222A CN101656353A (en) | 2008-08-21 | 2008-08-21 | Linearly polarized antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101656353A true CN101656353A (en) | 2010-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810214222A Pending CN101656353A (en) | 2008-08-21 | 2008-08-21 | Linearly polarized antenna |
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| Country | Link |
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| CN (1) | CN101656353A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102456949A (en) * | 2010-10-18 | 2012-05-16 | 启碁科技股份有限公司 | Beam wave adjusting device for horn antenna |
| CN102956939A (en) * | 2011-08-23 | 2013-03-06 | 百一电子股份有限公司 | Dual-frequency wave guide tube |
-
2008
- 2008-08-21 CN CN200810214222A patent/CN101656353A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102456949A (en) * | 2010-10-18 | 2012-05-16 | 启碁科技股份有限公司 | Beam wave adjusting device for horn antenna |
| CN102456949B (en) * | 2010-10-18 | 2014-10-08 | 启碁科技股份有限公司 | Beam wave adjusting device for horn antenna |
| CN102956939A (en) * | 2011-08-23 | 2013-03-06 | 百一电子股份有限公司 | Dual-frequency wave guide tube |
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Application publication date: 20100224 |