CN104377455A - Antenna structure - Google Patents
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- CN104377455A CN104377455A CN201310354523.1A CN201310354523A CN104377455A CN 104377455 A CN104377455 A CN 104377455A CN 201310354523 A CN201310354523 A CN 201310354523A CN 104377455 A CN104377455 A CN 104377455A
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Abstract
The invention discloses an antenna structure. The antenna structure comprises a first dipole antenna assembly, a closed-loop conductor and a reflection surface, wherein the first dipole antenna assembly transmits a first electromagnetic signal; the closed-loop conductor is adjacent to the first dipole antenna assembly; the reflection surface is used for reflecting the first electromagnetic signal from the first dipole antenna assembly so as to increase the overall gain of the antenna structure; the first dipole antenna assembly is approximately located between the closed-loop conductor and the reflection surface, or the closed-loop conductor is approximately located between the first dipole antenna assembly and the reflection surface. According to the antenna structure, the distance between a radiation part and the reflection surface can be effectively shortened, so the antenna structure is applicable to various miniature mobile devices, and the overall gain of the antenna structure can be increased.
Description
Technical field
The present invention relates to a kind of antenna structure, particularly one comprises the directional antenna structure (Directional Antenna Structure) of dipole antenna assembly (Dipole Antenna Element).
Background technology
Along with the development of mobile communication technology, mobile device is more prevalent in recent years, such as common: the portable electronic apparatus of hand-held computer, mobile phone, multimedia player and other mixed functions.In order to meet the demand of people, mobile device has the function of radio communication usually.Some contains the range for wireless communication of long distance, such as: mobile phone uses 2G, 3G, LTE(Long Term Evolution, Long Term Evolution) system and use 700MHz, 850MHz, 900MHz, 1800MHz, 1900MHz, 2100MHz, the frequency bands for communication of 2300MHz and 2500MHz, some then contains short-range range for wireless communication, such as: Wi-Fi, Bluetooth(bluetooth) and WiMAX(Worldwide Interoperability for Microwave Access, worldwide interoperability for microwave accesses) system use 2.4GHz, 3.5GHz, the frequency bands for communication of 5.2GHz and 5.8GHz.
Because mobile device inner space is limited, therefore wherein must reduce its size as much as possible for the antenna structure of radio communication.The distance that traditional high directivity antenna structure is often limited between its Department of Radiation and reflecting surface is excessive, therefore cannot be applied in the mobile device of various miniaturization.
Thus, need to provide a kind of antenna structure to solve the problems referred to above.
Summary of the invention
The invention provides a kind of antenna structure, this antenna structure comprises: one first dipole antenna assembly, and one first electromagnetic signal launched by this first dipole antenna assembly; One loop conductor, this loop conductor is adjacent to this first dipole antenna assembly; And a reflecting surface, this reflecting surface comes from this first electromagnetic signal of this first dipole antenna assembly for reflecting, to promote the entire gain of this antenna structure; Wherein this first dipole antenna assembly is roughly between this loop conductor and this reflecting surface, or this loop conductor is roughly between this first dipole antenna assembly and this reflecting surface.
In addition, the invention provides a kind of antenna structure, this antenna structure comprises: one first dipole antenna assembly, and this first dipole antenna assembly is in order to launch one first electromagnetic signal; And a reflecting surface, this reflecting surface has a loop slotted eye, and wherein this reflecting surface is for reflecting this first electromagnetic signal coming from this first dipole antenna assembly, to promote the entire gain of this antenna structure.
The present invention can distance effectively between shrinkage limit Department of Radiation and reflecting surface, makes it be suitable for being applied in the mobile device of various miniaturization, and can promote the entire gain of antenna structure.
Accompanying drawing explanation
The schematic diagram of the antenna structure of Fig. 1 display according to one embodiment of the invention;
The antenna structure of Fig. 2 display according to one embodiment of the invention return loss figure;
Fig. 3 A shows the schematic diagram of the antenna structure according to one embodiment of the invention;
Fig. 3 B shows the schematic diagram of the antenna structure according to one embodiment of the invention;
The schematic diagram of the antenna structure of Fig. 4 display according to one embodiment of the invention;
The schematic diagram of the antenna structure of Fig. 5 display according to one embodiment of the invention;
The schematic diagram of the antenna structure of Fig. 6 display according to one embodiment of the invention;
The antenna structure of Fig. 7 display according to one embodiment of the invention return loss figure;
The schematic diagram of the antenna structure of Fig. 8 display according to one embodiment of the invention;
The schematic diagram of the antenna structure of Fig. 9 display according to one embodiment of the invention; And
The schematic diagram of the antenna structure of Figure 10 display according to one embodiment of the invention.
Primary clustering symbol description:
100,300,350,400,500,600,800,900,950 ~ antenna structure;
110,410 ~ the first dipole antenna assemblies;
111,411 ~ positive load point;
112,412 ~ negative load point;
120,320,370 ~ loop conductor;
130,630,830 ~ reflecting surface;
413,414,415,416 ~ radiation branch;
520 ~ the second dipole antenna assemblies;
The outer ring portion of 631 ~ reflecting surface;
The annular inner portion of 632 ~ reflecting surface;
635, the loop slotted eye of 835 ~ reflecting surface;
CC1, CC2, CC3, CC4 ~ curve;
D1, D3 ~ first or the distance between the second dipole antenna assembly and reflecting surface;
D2 ~ the first or the distance between the second dipole antenna assembly and loop conductor;
S1 ~ the first electromagnetic signal;
S2 ~ the second electromagnetic signal;
The width of W1 ~ loop slotted eye; And
X, Y, Z ~ change in coordinate axis direction.
Embodiment
For object of the present invention, feature and advantage can be become apparent, cited below particularly go out specific embodiments of the invention, and coordinate appended accompanying drawing, be described in detail below.
The schematic diagram of the antenna structure 100 of Fig. 1 display according to one embodiment of the invention.Antenna structure 100 can be arranged in a mobile device, such as: an intelligent mobile phone (Smart Phone), a flat computer (Tablet Computer), or a notebook computer (Notebook Computer).In addition, antenna structure 100 also can be set to an external antenna module independently, and it can be coupled to an electronic installation.Antenna structure 100 also can be coupled to a communication module of this mobile device or this electronic installation, to provide radio communication function.As shown in Figure 1, antenna structure 100 at least comprises: one first dipole antenna assembly 110, loop conductor (Closed Loop Conductor) 120 and a reflecting surface (Reflection Plane) 130.First dipole antenna assembly 110 can comprise two radiation conductors that direction towards the opposite extends, and wherein the length of each radiation conductor is about 0.25 times of wavelength of a center operating frequency of the first dipole antenna assembly 110.First dipole antenna assembly 110 has positive load point 111 and a negative load point 112, and they are coupled to a positive pole and a negative pole of a signal source respectively.First dipole antenna assembly 110 excited by this signal source, and launches one first electromagnetic signal S1.Reflecting surface 130 can be a metal ground plane.The size of reflecting surface 130 is usually much larger than the size of the first dipole antenna assembly 110 and the size of loop conductor 120.In certain embodiments, reflecting surface 130 can be arranged on a medium substrate, such as: a FR4(Flame Retardant(fire retardant) 4) substrate.Reflecting surface 130 comes from the first electromagnetic signal S1 of the first dipole antenna assembly 110 for reflecting, to promote the entire gain (Gain) of antenna structure 100.
Loop conductor 120 is adjacent to the first dipole antenna assembly 110.In the embodiment in figure 1, the first dipole antenna assembly 110 can roughly between loop conductor 120 and reflecting surface 130.In other embodiments, loop conductor 120 also can roughly between the first dipole antenna assembly 110 and reflecting surface 130.In the embodiment in figure 1, loop conductor 120 is roughly a square, wherein the first dipole antenna assembly 110 has a upright projection (normal vector on perspective plane is parallel to change in coordinate axis direction Z) on loop conductor 120, and this upright projection is roughly aligned in this foursquare a pair linea angulata (such as, the length of this upright projection can approximate this cornerwise length).When the first dipole antenna assembly 110 is excited, the mutual coupling effect (MutualCoupling Effect) between loop conductor 120 and the first dipole antenna assembly 110 can make the distance D1 between the first dipole antenna assembly 110 and reflecting surface 130 effectively shorten.For example, in the embodiment in figure 1, distance D1 between first dipole antenna assembly 110 and reflecting surface 130 can be about 0.125 times of wavelength (λ/8) of a center operating frequency of the first dipole antenna assembly 110, and its 0.25 times of wavelength (λ/4) comparing traditional design is reduced many.
In certain embodiments, the length of loop conductor 120 is about 1.1 times to 1.7 times wavelength of a center operating frequency of the first dipole antenna assembly 110, and is goodly about 1.414 times of wavelength (such as, 408mm).In certain embodiments, the width of loop conductor 120 is about between 1mm to 2mm.In certain embodiments, the distance D1 between the first dipole antenna assembly 110 and reflecting surface 130 is about 30mm.In certain embodiments, the distance D2 between the first dipole antenna assembly 110 and loop conductor 120 is about between 1mm to 2mm.In certain embodiments, the length of reflecting surface 130 and width are all about 160mm.
The antenna structure 100 of Fig. 2 display according to one embodiment of the invention return loss (Return Loss) figure.In the embodiment of fig. 2, when curve C C1 representative antennas structure 100 does not comprise loop conductor 120, return loss, and when curve C C2 representative antennas structure 100 has comprised loop conductor 120 (as shown in Figure 1) return loss.According to the result of Fig. 2, after including loop conductor 120 in, the bandwidth of operation of antenna structure 100 will increase significantly.Because the mutual coupling effect between loop conductor 120 and the first dipole antenna assembly 110 can change the input impedance (Input Impedance) of the first dipole antenna assembly 110, therefore loop conductor 120 can be used for the distance D1 between adjustment first dipole antenna assembly 110 and reflecting surface 130, and then reduce the overall dimensions of antenna structure 100.Therefore, antenna structure of the present invention can get both and improve antenna gain and reduce the double dominant of antenna size, makes it suitable to electronic installation or the mobile device of various miniaturization.
Except previous designs mode, antenna structure of the present invention also can comprise the dipole antenna assembly and loop conductor with other shapes.Please refer to described in the following example.
Fig. 3 A shows the schematic diagram of the antenna structure 300 according to one embodiment of the invention.Fig. 3 A with Fig. 1 is similar.In the embodiment in fig. 3 a, a loop conductor 320 of antenna structure 300 is roughly a circle.First dipole antenna assembly 110 has a upright projection (normal vector on perspective plane is parallel to change in coordinate axis direction Z) on loop conductor 320, and this upright projection is roughly aligned in a diameter (such as, the length of this upright projection can approximate the length of this diameter) of this circle.All the other features of the antenna structure 300 of Fig. 3 A are all similar to the antenna structure 100 of Fig. 1, so two embodiments all can reach similar operating effect.
Fig. 3 B shows the schematic diagram of the antenna structure 350 according to one embodiment of the invention.Fig. 3 B with Fig. 1 is similar.In the embodiment of Fig. 3 B, a loop conductor 370 of antenna structure 350 is roughly ten hexagon stars.First dipole antenna assembly 110 has a upright projection (normal vector on perspective plane is parallel to change in coordinate axis direction Z) on loop conductor 370, and this upright projection is roughly aligned in a pair linea angulata (such as, the length of this upright projection can approximate this cornerwise length) of this ten hexagons star.All the other features of the antenna structure 350 of Fig. 3 B are all similar to the antenna structure 100 of Fig. 1, so two embodiments all can reach similar operating effect.
The schematic diagram of the antenna structure 400 of Fig. 4 display according to one embodiment of the invention.Fig. 4 with Fig. 1 is similar.In the fig. 4 embodiment, one first dipole antenna assembly 410 of antenna structure 400 comprises at least four radiation branch 413,414,415,416, to contain two working band.In more detail, radiation branch 413,415 is all coupled to a positive load point 411 of the first dipole antenna assembly 410, and roughly formation one is J-shaped.In addition, radiation branch 414,416 is coupled to a negative load point 412 of the first dipole antenna assembly 410, and roughly forms that another is J-shaped.The positive load point 411 of the first dipole antenna assembly 410 and negative load point 412 are coupled to a positive pole and a negative pole of a signal source respectively.When the first dipole antenna assembly 410 is excited, longer radiation branch 413,414 produces a low-frequency band jointly, and shorter radiation branch 415,416 produces a high frequency band jointly.Must be noted that a centre frequency of this low-frequency band of the embodiment of Fig. 4 is equal to the center operating frequency of the first dipole antenna assembly 110 alleged by previous embodiment.All the other features of the antenna structure 400 of Fig. 4 are all similar to the antenna structure 100 of Fig. 1, so two embodiments all can reach similar operating effect.
The schematic diagram of the antenna structure 500 of Fig. 5 display according to one embodiment of the invention.Fig. 5 with Fig. 1 is similar.In the 5 embodiment of figure 5, antenna structure 500 also comprises one second dipole antenna assembly 520.First dipole antenna assembly 410 and the second dipole antenna assembly 520 can be excited by different binary signal sources respectively.Second dipole antenna assembly 520 is approximately perpendicular to the first dipole antenna assembly 410, and launches one second electromagnetic signal S2.Loop conductor 120 also can be adjacent to the second dipole antenna assembly 520, and reflecting surface 130 also can be used for reflecting the second electromagnetic signal S2 coming from the second dipole antenna assembly 520.Mutual coupling effect between loop conductor 120 and the second dipole antenna assembly 520 also can make the distance D1 between the second dipole antenna assembly 520 and reflecting surface 130 effectively shorten.In the 5 embodiment of figure 5, the second dipole antenna assembly 520 identical with the first dipole antenna assembly 410 (such as, detailed construction can as shown in Figure 4), its difference is only that the second dipole antenna assembly 520 also have rotated about 90 degree.In other embodiments, the second dipole antenna assembly 520 and the first dipole antenna assembly 410 also can only comprise two radiation branch with the first dipole antenna assembly 110(shown in Fig. 1 separately) identical, and angle is about 90 degree therebetween.In the 5 embodiment of figure 5, loop conductor 120 is roughly a square.First dipole antenna assembly 410 has one first upright projection (normal vector on perspective plane is parallel to change in coordinate axis direction Z) on loop conductor 120, and the second dipole antenna assembly 520 has one second upright projection (normal vector on perspective plane is parallel to change in coordinate axis direction Z) on loop conductor 120, wherein this first upright projection and this second upright projection are roughly aligned in this foursquare two Vertical Diagonal lines respectively.Due to the second dipole antenna assembly 520 and the first dipole antenna assembly 410 roughly orthogonal, antenna structure 500 can have dual linear polarization direction, contribute to receiving or transmitting the electromagnetic signal of different directions.All the other features of the antenna structure 500 of Fig. 5 are all similar to the antenna structure 100 of Fig. 1, so two embodiments all can reach similar operating effect.
The schematic diagram of the antenna structure 600 of Fig. 6 display according to one embodiment of the invention.As shown in Figure 6, antenna structure 600 at least comprises: one first dipole antenna assembly 110 and a reflecting surface 630.First dipole antenna assembly 110 can be excited by a signal source, and launches one first electromagnetic signal S1.The detailed construction of the first dipole antenna assembly 110 can as described in the embodiment of Fig. 1.Reflecting surface 630 can be a metal ground plane, and its size is usually much larger than the size of the first dipole antenna assembly 110.In certain embodiments, reflecting surface 630 can be arranged on a medium substrate, such as: a FR4 substrate.Reflecting surface 630 comes from the first electromagnetic signal S1 of the first dipole antenna assembly 110 for reflecting, to promote the entire gain of antenna structure 600.Reflecting surface 630 has a loop slotted eye (Closed Loop Slot) 635.In more detail, reflecting surface 630 comprises the outer ring portion 631 be positioned at beyond loop slotted eye 635, and the annular inner portion 632 be positioned within loop slotted eye 635, wherein outer ring portion 631 and annular inner portion 632 are opened by loop slotted eye 635 institute is completely isolated.In the embodiment in fig 6, loop slotted eye 635 is roughly a square, wherein the first dipole antenna assembly 110 has a upright projection (normal vector on perspective plane is parallel to change in coordinate axis direction Z) on reflecting surface 630, and this upright projection is roughly aligned in this foursquare a pair linea angulata (such as, the length of this upright projection can be greater than this cornerwise length).When the first dipole antenna assembly 110 is excited, the mutual coupling effect between the outer ring portion 631 of reflecting surface 630 and the first dipole antenna assembly 110 can make the distance D3 between the first dipole antenna assembly 110 and reflecting surface 630 effectively shorten.For example, in the embodiment in fig 6, distance D3 between first dipole antenna assembly 110 and reflecting surface 630 can be about 0.125 times of wavelength (λ/8) of a center operating frequency of the first dipole antenna assembly 110, and its 0.25 times of wavelength (λ/4) comparing traditional design is reduced many.In other embodiments, the annular inner portion 632 of reflecting surface 630 also can be omitted, and makes reflecting surface 630 roughly form a hollow structure.
In certain embodiments, the length of loop slotted eye 635 is about 0.8 times to 1.2 times wavelength of a center operating frequency of the first dipole antenna assembly 110, and is goodly about 1 times of wavelength (such as, 288mm).In certain embodiments, the width W 1 of loop slotted eye 635 is about between 1mm to 2mm.In certain embodiments, the distance D3 between the first dipole antenna assembly 110 and reflecting surface 630 is about 30mm.In certain embodiments, the length of reflecting surface 630 and width are all about 160mm.
The antenna structure 600 of Fig. 7 display according to one embodiment of the invention return loss figure.In the embodiment of Fig. 7, return loss when the reflecting surface 630 of curve C C3 representative antennas structure 600 does not have a loop slotted eye 635, and when the reflecting surface 630 of curve C C4 representative antennas structure 600 has had loop slotted eye 635 (as shown in Figure 6) return loss.According to the result of Fig. 7, after loop slotted eye 635 is formed in reflecting surface 630, the bandwidth of operation of antenna structure 600 will increase significantly.Because the mutual coupling effect between the outer ring portion 631 of reflecting surface 630 and the first dipole antenna assembly 110 can change the input impedance of the first dipole antenna assembly 110, therefore the outer ring portion 631 of reflecting surface 630 can be used for the distance D3 between adjustment first dipole antenna assembly 110 and reflecting surface 630, and then reduce the overall dimensions of antenna structure 600.With regard to antenna operation principle, the function of the outer ring portion 631 of the reflecting surface 630 of Fig. 6 roughly can be equal to the function of the loop conductor 120 of Fig. 1, therefore the embodiment of Fig. 6 with Fig. 1 all can reach similar operating effect.
Except previous designs mode, antenna structure of the present invention also can comprise the dipole antenna assembly and loop slotted eye with other shapes.Please refer to described in the following example.
The schematic diagram of the antenna structure 800 of Fig. 8 display according to one embodiment of the invention.Fig. 8 with Fig. 6 is similar.In the embodiment in fig. 8, a loop slotted eye 835 of a reflecting surface 830 of antenna structure 800 is roughly a circle.First dipole antenna assembly 110 has a upright projection (normal vector on perspective plane is parallel to change in coordinate axis direction Z) on reflecting surface 830, and this upright projection is roughly aligned in a diameter (such as, the length of this upright projection can be greater than the length of this diameter) of this circle.All the other features of the antenna structure 800 of Fig. 8 are all similar to the antenna structure 600 of Fig. 6, so two embodiments all can reach similar operating effect.
The schematic diagram of the antenna structure 900 of Fig. 9 display according to one embodiment of the invention.Fig. 9 with Fig. 6 is similar.In the embodiment in fig. 9, one first dipole antenna assembly 410 of antenna structure 900 comprises at least four radiation branch 413,414,415,416, to contain two working band.The detailed construction of the first dipole antenna assembly 410 can as described in the embodiment of Fig. 4.All the other features of the antenna structure 900 of Fig. 9 are all similar to the antenna structure 600 of Fig. 6, so two embodiments all can reach similar operating effect.
The schematic diagram of the antenna structure 950 of Figure 10 display according to one embodiment of the invention.Figure 10 with Fig. 6 is similar.In the embodiment in figure 10, antenna structure 950 also comprises one second dipole antenna assembly 520.Second dipole antenna assembly 520 is identical with the first dipole antenna assembly 410, and its difference is only that the second dipole antenna assembly 520 also have rotated about 90 degree.The detailed construction of the first dipole antenna assembly 410 and the second dipole antenna assembly 520 can as described in the embodiment of Fig. 1, Fig. 4, Fig. 5.Second dipole antenna assembly 520 is approximately perpendicular to the first dipole antenna assembly 410, and launches one second electromagnetic signal S2.Reflecting surface 630 also can be used for reflecting the second electromagnetic signal S2 coming from the second dipole antenna assembly 520.Mutual coupling effect between the outer ring portion 631 of reflecting surface 630 and the second dipole antenna assembly 520 also can make the distance D3 between the second dipole antenna assembly 520 and reflecting surface 630 effectively shorten.Due to the second dipole antenna assembly 520 and the first dipole antenna assembly 410 roughly orthogonal, antenna structure 950 can have dual linear polarization direction, contribute to receiving or transmitting the electromagnetic signal of different directions.All the other features of the antenna structure 950 of Figure 10 are all similar to the antenna structure 600 of Fig. 6, so two embodiments all can reach similar operating effect.
It should be noted that above-described size of components, component parameter and element shapes are all non-for restrictive condition of the present invention.Antenna designers can need to adjust these set points according to difference.In addition, antenna structure of the present invention is not limited in the state illustrated in Fig. 1-Figure 10.The present invention only can comprise any one or more of feature of one or more embodiment any of Fig. 1-Figure 10.In other words, and the illustrated feature of not all must be implemented in antenna structure of the present invention simultaneously.
Ordinal number in the scope of this specification and claims, such as " first ", " second ", " the 3rd " etc., the precedence relationship each other not in order, it only has the different assemblies of same name for indicating differentiation two.
Though the present invention with preferred embodiment openly as above; but itself and be not used to limit scope of the present invention; any those of ordinary skill in the art; without departing from the spirit and scope of the present invention; should do a little change and retouching, therefore protection scope of the present invention should be as the criterion depending on the scope person of defining of appending claims.
Claims (19)
1. an antenna structure, this antenna structure comprises:
One first dipole antenna assembly, one first electromagnetic signal launched by this first dipole antenna assembly;
One loop conductor, this loop conductor is adjacent to this first dipole antenna assembly; And
One reflecting surface, this reflecting surface comes from this first electromagnetic signal of this first dipole antenna assembly for reflecting, to promote the entire gain of this antenna structure;
Wherein this first dipole antenna assembly is roughly between this loop conductor and this reflecting surface, or this loop conductor is roughly between this first dipole antenna assembly and this reflecting surface.
2. antenna structure as claimed in claim 1, the mutual coupling effect wherein between this loop conductor and this first dipole antenna assembly makes the Distance Shortened between this first dipole antenna assembly and this reflecting surface.
3. antenna structure as claimed in claim 2, this distance wherein between this first dipole antenna assembly and this reflecting surface is 0.125 times of wavelength of a center operating frequency of this first dipole antenna assembly.
4. antenna structure as claimed in claim 1, the distance wherein between this first dipole antenna assembly and this loop conductor is between 1mm to 2mm.
5. antenna structure as claimed in claim 1, wherein the length of this loop conductor is 1.1 times to 1.7 times wavelength of a center operating frequency of this first dipole antenna assembly.
6. antenna structure as claimed in claim 1, wherein this loop conductor is roughly a square, and this first dipole antenna assembly has a upright projection on this loop conductor, and this upright projection is roughly aligned in this foursquare a pair linea angulata.
7. antenna structure as claimed in claim 1, wherein this loop conductor is roughly a circle, and this first dipole antenna assembly has a upright projection on this loop conductor, and this upright projection is roughly aligned in a diameter of this circle.
8. antenna structure as claimed in claim 1, wherein this first dipole antenna assembly comprises at least four radiation branch, to contain two working band.
9. antenna structure as claimed in claim 1, also comprises:
One second dipole antenna assembly, this the second dipole antenna assembly is approximately perpendicular to this first dipole antenna assembly, and launch one second electromagnetic signal, wherein this loop conductor is also adjacent to this second dipole antenna assembly, this reflecting surface is also for reflecting this second electromagnetic signal coming from this second dipole antenna assembly, and this antenna structure also has dual linear polarization direction.
10. antenna structure as claimed in claim 9, wherein this second dipole antenna assembly comprises at least four radiation branch, to contain two working band.
11. 1 kinds of antenna structures, this antenna structure comprises:
One first dipole antenna assembly, this first dipole antenna assembly is in order to launch one first electromagnetic signal; And
One reflecting surface, this reflecting surface has a loop slotted eye, and wherein this reflecting surface is for reflecting this first electromagnetic signal coming from this first dipole antenna assembly, to promote the entire gain of this antenna structure.
12. antenna structures as claimed in claim 11, wherein this reflecting surface comprises the outer ring portion be positioned at beyond this loop slotted eye, and the mutual coupling effect between this outer ring portion and this first dipole antenna assembly makes the Distance Shortened between this first dipole antenna assembly and this reflecting surface.
13. antenna structures as claimed in claim 12, this distance wherein between this first dipole antenna assembly and this reflecting surface is 0.125 times of wavelength of a center operating frequency of this first dipole antenna assembly.
14. antenna structures as claimed in claim 11, wherein the length of this loop slotted eye is 0.8 times to 1.2 times wavelength of a center operating frequency of this first dipole antenna assembly.
15. antenna structures as claimed in claim 11, wherein this loop slotted eye is roughly a square, and this first dipole antenna assembly has a upright projection on this reflecting surface, and this upright projection is roughly aligned in this foursquare a pair linea angulata.
16. antenna structures as claimed in claim 11, wherein this loop slotted eye is roughly a circle, and this first dipole antenna assembly has a upright projection on this reflecting surface, and this upright projection is roughly aligned in a diameter of this circle.
17. antenna structures as claimed in claim 11, wherein this first dipole antenna assembly comprises at least four radiation branch, to contain two working band.
18. antenna structures as claimed in claim 11, also comprise:
One second dipole antenna assembly, this the second dipole antenna assembly is approximately perpendicular to this first dipole antenna assembly, and launch one second electromagnetic signal, wherein this reflecting surface is also for reflecting this second electromagnetic signal coming from this second dipole antenna assembly, and this antenna structure also has dual linear polarization direction.
19. antenna structures as claimed in claim 18, wherein this second dipole antenna assembly comprises at least four radiation branch, to contain two working band.
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| CN201310354523.1A CN104377455B (en) | 2013-08-14 | 2013-08-14 | Antenna structure |
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| CN201310354523.1A CN104377455B (en) | 2013-08-14 | 2013-08-14 | Antenna structure |
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| CN104377455B CN104377455B (en) | 2017-08-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108461894A (en) * | 2017-02-22 | 2018-08-28 | 启碁科技股份有限公司 | Communication device |
| CN110854513A (en) * | 2018-08-21 | 2020-02-28 | 比亚迪股份有限公司 | Antenna element unit, antenna element and antenna |
| US10587051B2 (en) | 2017-02-09 | 2020-03-10 | Wistron Neweb Corp. | Communication device |
| CN111725609A (en) * | 2019-03-22 | 2020-09-29 | 启碁科技股份有限公司 | Antenna structure |
| CN113169456A (en) * | 2019-02-28 | 2021-07-23 | 半球全球卫星导航系统公司 | Broadband GNSS antenna system |
| CN115799824A (en) * | 2022-12-14 | 2023-03-14 | 东莞市优比电子有限公司 | Linear array antenna |
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| CN108461894B (en) * | 2017-02-22 | 2021-08-06 | 启碁科技股份有限公司 | Communication device |
| CN110854513A (en) * | 2018-08-21 | 2020-02-28 | 比亚迪股份有限公司 | Antenna element unit, antenna element and antenna |
| CN110854513B (en) * | 2018-08-21 | 2021-04-20 | 比亚迪股份有限公司 | Antenna element unit, antenna element and antenna |
| CN113169456A (en) * | 2019-02-28 | 2021-07-23 | 半球全球卫星导航系统公司 | Broadband GNSS antenna system |
| CN111725609A (en) * | 2019-03-22 | 2020-09-29 | 启碁科技股份有限公司 | Antenna structure |
| CN111725609B (en) * | 2019-03-22 | 2021-12-07 | 启碁科技股份有限公司 | Antenna structure |
| CN115799824A (en) * | 2022-12-14 | 2023-03-14 | 东莞市优比电子有限公司 | Linear array antenna |
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|---|---|
| CN104377455B (en) | 2017-08-29 |
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