CN201360051Y - Antenna structure - Google Patents
Antenna structure Download PDFInfo
- Publication number
- CN201360051Y CN201360051Y CNU2009201444235U CN200920144423U CN201360051Y CN 201360051 Y CN201360051 Y CN 201360051Y CN U2009201444235 U CNU2009201444235 U CN U2009201444235U CN 200920144423 U CN200920144423 U CN 200920144423U CN 201360051 Y CN201360051 Y CN 201360051Y
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- radiant body
- component
- antenna structure
- ground connection
- assembly
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Abstract
The utility model relates to an antenna structure. Particularly, the antenna structure comprises a base plate, a radiating component, a signal feed-in component and a grounding component. The radiating component comprises a first radiator and a second radiator coupled with the first radiator; the first radiator and the second radiator are completely same; and the signal feed-in component is coupled at the connection part of the first radiator and the second radiator which are arranged at the two sides of the signal feed-in component symmetrically left and right so as to form an array. The grounding component comprises a first grounding subcomponent and a second grounding subcomponent, wherein the first grounding subcomponent is coupled between the first radiator and the base plate, the second grounding subcomponent is coupled between the second radiator and the base plate, and the first grounding subcomponent and the second grounding subcomponent are the same completely. The antenna structure achieves the effect of simultaneously receiving left-handed circular polarized signals and right-handed circular polarized signals by a single antenna structure, can greatly reduce product thickness, also can reduce manufacturing cost, and has good voltage standing-wave ratio and radiation efficiency and wide magnetic field direction.
Description
Technical field
The utility model relates to antenna structure, relate in particular to a kind of two (or more than) identical antennas are combined and both sides (for example being arranged in an array) that left and right symmetrically is arranged at signal feed-in assembly constitute a new antenna frame, to reach the purpose that can receive left-handed Circular Polarisation signal (LHCP) and dextrorotation Circular Polarisation signal (RHCP) simultaneously.
Background technology
Because satellite communications services has broadband, broadcasting and characteristic such as borderless, the demand for satellite receiving system increases year by year in recent years.Yet satellite frequency range resource-constrained for the frequency range that makes satellite can make full use of, thereby develops load modes such as linear polarization and Circular Polarisation.Linear polarization, comprise again vertical linear polarization (vertical linear polarization, VLP) and horizontal linear polarization (horizontal linear polarization, HLP), the size of its electric field changes in time, but direction remains on same direction; And Circular Polarisation comprises dextrorotation Circular Polarisation (right-hand circularpolarization, RHCP) and left-handed Circular Polarisation (left-hand circular polarization, LHCP), the size of its electric field does not change in time, but direction changes in time.
Satellite receiving system is often used plate type antenna (patch antenna) or is received the Circular Polarisation signal by the made antenna of ceramic core of ceramic material (ceramic chip antenna) at present, because the dielectric constant of ceramic material is big and dielectric absorption is less, is well suited for HF communication.No matter but be to adopt plate type antenna or antenna of ceramic core, because the thickness thicker (about 5～10 millimeters) of antenna can cause product that corresponding thickness must be arranged.In addition, single antenna on the present satellite receiving system, only can be used for receiving dextrorotation Circular Polarisation signal or left-handed Circular Polarisation signal, therefore two antennas must be set can receive dextrorotation Circular Polarisation signal and left-handed Circular Polarisation signal simultaneously, and the directivity in its radiation efficiency and magnetic field is all obviously not enough.
The utility model content
One of the purpose of this utility model is to provide a kind of antenna structure, to solve the problems of the prior art.
An embodiment of the present utility model provides a kind of antenna structure.Antenna structure comprises a substrate, a radiation assembly, a signal feed-in assembly and a grounding assembly.Radiation assembly includes second radiant body that one first radiant body and is coupled to this first radiant body, and wherein first radiant body and second radiant body are identical.Signal feed-in assembly is coupled to the junction of first radiant body and second radiant body, and wherein first radiant body and the second radiant body left and right symmetrically are arranged at the both sides of signal feed-in assembly to be arranged in an array.Grounding assembly includes the first ground connection sub-component and the second ground connection sub-component, the first ground connection sub-component is coupled between first radiant body and the substrate, and the second ground connection sub-component is coupled between second radiant body and the substrate, and wherein the first ground connection sub-component and the second ground connection sub-component are identical.Wherein antenna structure is made of a printed circuit board (PCB).
Another embodiment of the present utility model provides a kind of antenna structure, includes: a signal feed-in assembly; One radiation assembly, include one first radiant body, be coupled to this signal feed-in assembly, and one second radiant body, be coupled to this first radiant body and this signal feed-in assembly, wherein this first radiant body and this second radiant body is identical and left and right symmetrically is arranged at the both sides of this signal feed-in assembly; One substrate; An and grounding assembly, include one first ground connection sub-component, be coupled between this first radiant body and this substrate, and one second ground connection sub-component, be coupled between this second radiant body and this substrate, wherein this first ground connection sub-component and this second ground connection sub-component are identical; Wherein this signal feed-in assembly, this radiation assembly, this substrate and this grounding assembly form a closed area.
The utility model provides a kind of antenna structure, and the both sides (for example being arranged in an array) that it utilizes two (or more than) identical antennas (for example inverted F shaped antenna) to combine and left and right symmetrically is arranged at signal feed-in assembly constitute a new antenna frame.Thus, just can reach by single antenna structure and reach the optimum efficiency that receives left-handed Circular Polarisation signal and dextrorotation Circular Polarisation signal simultaneously.Moreover antenna structure disclosed in the utility model adopts printed circuit board (PCB) to replace ceramic material originally, not only can the width of cloth reduces the thickness of product, can also reduce the manufacturing cost of antenna.In addition, antenna structure disclosed in the utility model has good voltage standing wave ratio and radiation efficiency, and its magnetic direction broadness, can satisfy the operational requirements of global position system.
Description of drawings
Fig. 1 is the schematic diagram of first embodiment of an antenna structure of the present utility model.
Fig. 2 is the schematic diagram of voltage standing wave ratio of the antenna structure of Fig. 1.
Fig. 3 is a radiation pattern figure of the antenna structure of Fig. 1.
Fig. 4 is another radiation pattern figure of the antenna structure of Fig. 1.
Fig. 5 is another radiation pattern figure of the antenna structure of Fig. 1.
Fig. 6 is the schematic diagram of second embodiment of an antenna structure of the present utility model.
The primary clustering symbol description:
100,600 antenna structures, 180 second ground connection sub-components
110,610 substrates 670 the 3rd ground connection sub-component
120,620 radiation assemblies 680 the 4th ground connection sub-component
130 first radiant body A1, A2 junction
140 second radiant bodies, 190 coaxial cables
630 the 3rd radiant bodies, 191 first conductor layers
640 the 4th radiant bodies, 192 first insulating barriers
150,650 signal feed-in assemblies, 193 second conductor layers
650A first 194 second insulating barriers
650B second portion 200,710,720 closed areas
160,660 grounding assembly X, Y, Z reference axis
170 first ground connection sub-components
Embodiment
Please refer to Fig. 1, Fig. 1 is the schematic diagram of first embodiment of an antenna structure 100 of the present utility model.As shown in Figure 1, antenna structure 100 comprises a substrate 110, a radiation assembly 120, a signal feed-in assembly 150 and a grounding assembly 160.Radiation assembly 120 includes one first radiant body 130 and one second radiant body, 140, the second radiant bodies 140 are coupled to first radiant body 130, and first radiant body 130 and second radiant body 140 are identical.Signal feed-in assembly 150 is coupled to the junction A1 of first radiant body 130 and second radiant body 140, and wherein first radiant body 130 and second radiant body, 140 left and right symmetricallies are arranged at the both sides of signal feed-in assembly 150.In other words, first radiant body 130 and second radiant body 140 are arranged in an array (array).Grounding assembly 160 comprises one first ground connection sub-component 170 and one second ground connection sub-component 180, the first ground connection sub-component 170 is coupled between first radiant body 130 and the substrate 110, and the second ground connection sub-component 180 is coupled between second radiant body 140 and the substrate 110, and wherein the first ground connection sub-component 170 and the second ground connection sub-component 180 are identical.Wherein, substrate 110, grounding assembly 160 (comprising the first ground connection sub-component 170 and the second ground connection sub-component 180), radiation assembly 120 (comprising first radiant body 130 and second radiant body 140) and signal feed-in assembly 150 form a closed area 200.
In addition, signal feed-in assembly 150 also is connected to a coaxial cable (coaxial cable) 190, it comprises one first conductor layer 191, one first insulating barrier 192, one second conductor layer 193 and one second insulating barrier 194, wherein first insulating barrier 192 is covered in outside first conductor layer 191 and between first conductor layer 191 and second conductor layer 193, second insulating barrier 194 is covered in outside second conductor layer 193.First conductor layer 191 is coupled to signal feed-in assembly 150, and second conductor layer 193 is coupled to substrate 110.Substrate 110 is made of dielectric material, and is electrically connected to an end systematically.Antenna structure 100 is located in the radio communication device, as a global position system (Global Positioning System, GPS) or a portable navigation device (Portable Navigation Device, PND).
Can learn by Fig. 1, first radiant body 130, the first ground connection sub-component 170, substrate 110 and signal feed-in assembly 150 can be considered one first inverted F shaped antenna (planner inverted-F antenna, PIFA), and second radiant body 140, the second ground connection sub-component 180, substrate 110 and signal feed-in assembly 150 can be considered one second inverted F shaped antenna, wherein first radiant body 130 is used for receiving left-handed Circular Polarisation (LHCP) signal, and second radiant body 140 then is used for receiving dextrorotation Circular Polarisation (RHCP) signal.In other words, the both sides (for example being arranged in an array) that the utility model combines two identical inverted F shaped antennas and left and right symmetrically is arranged at signal feed-in assembly 150 constitute a new antenna frame, to reach the purpose that can receive left-handed Circular Polarisation signal and dextrorotation Circular Polarisation signal simultaneously.
It should be noted that antenna structure 100 is a single-band antenna, it is used for receiving the signal of single-frequency scope, 1.5754GHz for example, but the receive frequency range of antenna is not a restrictive condition of the present utility model.
In the present embodiment, first radiant body 130 and second radiant body 140 respectively comprise at least one bending, yet this is not a restrictive condition of the present utility model, and the shape of first radiant body 130 and second radiant body 140 and the bending number do not limit to.In addition, the first ground connection sub-component 170 and the second ground connection sub-component 180 also respectively comprise at least one bending, but the utility model is not limited thereto.Those skilled in the art should understand, and under spirit of the present utility model, the various variations of first radiant body 130, second radiant body 140, the first ground connection sub-component 170 and the second ground connection sub-component 180 all are feasible.Only first radiant body 130 must be identical with second radiant body 140, and the first ground connection sub-component 170 and the second ground connection sub-component 180 are necessary identical, to reach the optimum efficiency that can receive left-handed Circular Polarisation signal and dextrorotation Circular Polarisation signal simultaneously.
Note that and to adopt a printed circuit board (PCB) (printed circuit board PCB) comes designing antenna structure 100, to replace by the made antenna of ceramic core of ceramic material.Because the thickness only about 0.4～1.6 millimeter (mm) of printed circuit board (PCB) (for example FR4) thus, can significantly reduce the thickness of product, and simplify follow-up assembling flow path.In addition, adopt printed circuit board (PCB) to make base material, can also reduce the manufacturing cost of antenna.
Please refer to Fig. 2, Fig. 2 is the schematic diagram of voltage standing wave ratio of the antenna structure 100 of Fig. 1.Transverse axis is represented frequency (GHz), and between 1GHz to 2GHz, the longitudinal axis is represented voltage standing wave ratio VSWR.As shown in Figure 2, antenna structure 100 has good voltage standing wave ratio (voltage standing wave ratio drops on below 2) near frequency 1.5754GHz, can satisfy the operational requirements of global position system.
Please refer to Fig. 3, Fig. 4 and Fig. 5, Fig. 3, Fig. 4 and Fig. 5 are respectively a radiation pattern figure of the antenna structure 100 of Fig. 1.Wherein, Fig. 3 is the measurement of antenna structure 100 on the ZX plane, and Fig. 4 is the measurement of antenna structure 100 on the YZ plane, and Fig. 5 then is the measurement of antenna structure 100 on the XY plane.By the measurement of Fig. 3 and Fig. 4 as can be seen, radiation pattern on the ZX plane and the YZ plane be left-right symmetric, can be used for receiving left-handed Circular Polarisation signal and dextrorotation Circular Polarisation signal simultaneously.And by the measurement of Fig. 5 as can be seen, the radiation pattern of antenna structure 100 is in circle of XY plane approximation, and its covering scope is very big and have a higher radiation efficiency as can be known.
Please refer to Fig. 6, Fig. 6 is the schematic diagram of second embodiment of an antenna structure 600 of the present utility model, and it is the distortion of antenna structure 100 shown in Figure 1.The framework of the antenna structure 600 of Fig. 6 and the antenna structure 100 of Fig. 1 are similar, both differences are that the radiation assembly 620 of antenna structure 600 also comprises one the 3rd radiant body 630 and one the 4th radiant body 640, and the grounding assembly 660 of antenna structure 600 also comprises one the 3rd ground connection sub-component 670 and one the 4th ground connection sub-component 680.Wherein, the 4th radiant body 640 is coupled to the 3rd radiant body 630, and first, second, third, fourth radiant body 130,140,630,640 is identical.And the second portion 650B of the signal feed-in assembly 650 of antenna structure 600 is coupled to the junction A2 of the 3rd radiant body 630 and the 4th radiant body 640, and the 3rd radiant body 630 and the 4th radiant body 640 left and right symmetricallies are arranged at the both sides of the second portion 650B of signal feed-in assembly 650.In addition, the 3rd ground connection sub-component 670 is coupled between the 3rd radiant body 630 and the substrate 610, the 4th ground connection sub-component 680 is coupled between the 4th radiant body 640 and the substrate 610, and wherein first, second, third, fourth ground connection sub-component 170,180,670,680 is identical.
In the present embodiment, the 650A of first of substrate 610, the first ground connection sub-component 170, the second ground connection sub-component 180, first radiant body 130, second radiant body 140 and signal feed-in assembly 650 forms a closed area 710; And the second portion 650B of substrate 610, the 3rd ground connection sub-component 670, the 4th ground connection sub-component 680, the 3rd radiant body 630, the 4th radiant body 640 and signal feed-in assembly 650 forms another closed area 720.
Can learn that by Fig. 6 first, second, third, fourth radiant body, 130,140,630,640 left and right symmetricallies of radiation assembly 620 are arranged at the both sides of signal feed-in assembly 650 (including 650A of first and second portion 650B) to be arranged in an array.In other words, in the present embodiment, be four identical inverted F shaped antennas to be combined and be arranged in an array to constitute a new antenna frame, to reach the purpose that can receive left-handed Circular Polarisation signal and dextrorotation Circular Polarisation signal simultaneously.In addition, the second portion 650B of signal feed-in assembly 650 and the 650A of its first (not shown) that links together.
Note that above-mentioned antenna structure 100,600 only puts into practice example for of the present utility model one, those skilled in the art should understand, and this is not a restrictive condition of the present utility model.In other embodiments, also eight, 16 or more a plurality of identical inverted F shaped antenna can be combined and be arranged in an array constitutes a new antenna frame, to reach the purpose that can receive left-handed Circular Polarisation signal and dextrorotation Circular Polarisation signal simultaneously.In addition, the arrangement mode of antenna frame does not limit to, for example, in Fig. 6, be that four inverted F shaped antennas are arranged in a square, and in other embodiment, also four inverted F shaped antennas can be arranged in a long strip type, this also is subordinate to the category that the utility model is contained.
Notice again that please the above embodiments are not restrictive condition of the present utility model only for to be used for illustrating feasible design variation of the present utility model.Without doubt, those skilled in the art should understand, and under spirit of the present utility model, the various variations of the antenna that Fig. 1 and Fig. 6 mentioned all are feasible.
As from the foregoing, the utility model provides a kind of antenna structure, and the both sides (for example being arranged in an array) that it utilizes two (or more than) identical antennas (for example inverted F shaped antenna) to combine and left and right symmetrically is arranged at signal feed-in assembly constitute a new antenna frame.Thus, just can reach by single antenna structure and reach the optimum efficiency that receives left-handed Circular Polarisation signal and dextrorotation Circular Polarisation signal simultaneously.Moreover antenna structure disclosed in the utility model adopts printed circuit board (PCB) to replace ceramic material originally, not only can significantly reduce the thickness of product, can also reduce the manufacturing cost of antenna.In addition, antenna structure disclosed in the utility model has good voltage standing wave ratio and radiation efficiency, and its magnetic direction broadness, can satisfy the operational requirements of global position system.
The above only is preferred embodiment of the present utility model, and all equivalent variations and modifications of being done according to the utility model claims scope all should belong to covering scope of the present utility model.
Claims (13)
1. an antenna structure is characterized in that, described antenna structure comprises:
One substrate;
One radiation assembly comprises that one first radiant body and one second radiant body are coupled to described first radiant body, and wherein said first radiant body and described second radiant body are identical;
One signal feed-in assembly is coupled to the junction of described first radiant body and described second radiant body, and wherein said first radiant body and the described second radiant body left and right symmetrically are arranged at the both sides of described signal feed-in assembly; And
One grounding assembly comprises:
One first ground connection sub-component is coupled between described first radiant body and the described substrate; And
One second ground connection sub-component is coupled between described second radiant body and the described substrate, and wherein said first ground connection sub-component and the described second ground connection sub-component are identical.
2. antenna structure as claimed in claim 1 is characterized in that described antenna structure is made of a printed circuit board (PCB).
3. antenna structure as claimed in claim 1 is characterized in that, described first radiant body is as a left-handed circular polarization aerial, and described second radiant body is as a dextrorotation circular polarization aerial.
4. antenna structure as claimed in claim 3 is characterized in that, described antenna structure is a single-band antenna.
5. antenna structure as claimed in claim 1 is characterized in that, the described first ground connection sub-component comprises at least one bending, and the described second ground connection sub-component comprises at least one bending.
6. antenna structure as claimed in claim 1 is characterized in that, described radiation assembly also comprises:
One the 3rd radiant body; And
One the 4th radiant body is coupled to described the 3rd radiant body, and described first, second, third, fourth radiant body is identical;
Wherein said signal feed-in assembly is coupled to the junction of described the 3rd radiant body and described the 4th radiant body, and described the 3rd radiant body and described the 4th radiant body left and right symmetrically are arranged at the both sides of described signal feed-in assembly to be arranged in an array with described first, second radiant body.
7. antenna structure as claimed in claim 6 is characterized in that, described grounding assembly also comprises:
One the 3rd ground connection sub-component is coupled between described the 3rd radiant body and the described substrate; And
One the 4th ground connection sub-component is coupled between described the 4th radiant body and the described substrate, and wherein said first, second, third, fourth ground connection sub-component is identical.
8. an antenna structure is characterized in that, described antenna structure comprises:
One signal feed-in assembly;
One radiation assembly comprises:
One first radiant body is coupled to described signal feed-in assembly; And
One second radiant body is coupled to described first radiant body and described signal feed-in assembly, and the identical and left and right symmetrically of wherein said first radiant body and described second radiant body is arranged at the both sides of described signal feed-in assembly;
One substrate; And
One grounding assembly comprises:
One first ground connection sub-component is coupled between described first radiant body and the described substrate; And
One second ground connection sub-component is coupled between described second radiant body and the described substrate, and wherein said first ground connection sub-component and the described second ground connection sub-component are identical;
Wherein said signal feed-in assembly, described radiation assembly, described substrate and described grounding assembly form a closed area.
9. antenna structure as claimed in claim 8 is characterized in that described antenna structure is made of a printed circuit board (PCB).
10. antenna structure as claimed in claim 8 is characterized in that, described first radiant body is as a left-handed circular polarization aerial, and described second radiant body is as a dextrorotation circular polarization aerial.
11. antenna structure as claimed in claim 8 is characterized in that, the described first ground connection sub-component comprises at least one bending, and the described second ground connection sub-component comprises at least one bending.
12. antenna structure as claimed in claim 8 is characterized in that, described radiation assembly also comprises:
One the 3rd radiant body; And
One the 4th radiant body is coupled to described the 3rd radiant body, and described first, second, third, fourth radiant body is identical;
Wherein said signal feed-in assembly is coupled to the junction of described the 3rd radiant body and described the 4th radiant body, and described the 3rd radiant body and described the 4th radiant body left and right symmetrically are arranged at the both sides of described signal feed-in assembly to be arranged in an array with described first, second radiant body.
13. antenna structure as claimed in claim 12 is characterized in that, described grounding assembly also comprises:
One the 3rd ground connection sub-component is coupled between described the 3rd radiant body and the described substrate; And
One the 4th ground connection sub-component is coupled between described the 4th radiant body and the described substrate, and wherein said first, second, third, fourth ground connection sub-component is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201444235U CN201360051Y (en) | 2009-02-20 | 2009-02-20 | Antenna structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201444235U CN201360051Y (en) | 2009-02-20 | 2009-02-20 | Antenna structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201360051Y true CN201360051Y (en) | 2009-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201444235U Expired - Lifetime CN201360051Y (en) | 2009-02-20 | 2009-02-20 | Antenna structure |
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| Country | Link |
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| CN (1) | CN201360051Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113067121A (en) * | 2021-03-24 | 2021-07-02 | Oppo广东移动通信有限公司 | Electronic device |
-
2009
- 2009-02-20 CN CNU2009201444235U patent/CN201360051Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113067121A (en) * | 2021-03-24 | 2021-07-02 | Oppo广东移动通信有限公司 | Electronic device |
| CN113067121B (en) * | 2021-03-24 | 2023-12-22 | Oppo广东移动通信有限公司 | Electronic equipment |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091209 |
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| CX01 | Expiry of patent term |