CN204760533U - Antenna device - Google Patents
Antenna device Download PDFInfo
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- CN204760533U CN204760533U CN201520353766.8U CN201520353766U CN204760533U CN 204760533 U CN204760533 U CN 204760533U CN 201520353766 U CN201520353766 U CN 201520353766U CN 204760533 U CN204760533 U CN 204760533U
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Abstract
The utility model discloses an antenna device includes the medium base plate, is located on the medium base plate and the structure homogeneous phase with first to the fourth radiating antenna and be located medium base plate below and parallel reflecting plate, wherein, first radiating antenna is with fourth radiating antenna mutually perpendicular and be located respectively the edge of two parallel sides of medium base plate, the second radiating antenna just is located respectively with third radiating antenna mutually perpendicular the edge of two perpendicular sides of medium base plate, and each other be cross polarization between two adjacent radiating antennas. This antenna device utilizes the design of radiation structure to realize two frequency of operation and MIMO structure, utilizes first different oriented designs to the fourth radiating antenna to improve the isolation of day space to can improve communication stability and data transmission rate when reducing the antenna size.
Description
Technical field
The utility model relates to antenna technical field, relates more specifically to antenna assembly.
Background technology
Growing along with wireless communication technology, needs to carry out multiple different frequency range communication in electronic equipment simultaneously.Such as double-frequency wireless router can be operated in 2.4GHz and 5.0GHz two frequency ranges.Employing dual band communication can reduce the interference between wireless device, thus improves the stability of wireless network.Existing electronic equipment generally adopts two radio-frequency antennas to be respectively used to different frequency ranges.
On the other hand, multiple-input and multiple-output (MIMO) technology utilizes many antennas to send and Received signal strength, obtains increasing application in wireless communications.MIMO technology can improve capacity and the frequency range utilization ratio of communication system without increase in bandwidth, from but improve the important means of message transmission rate.Existing electronic equipment generally adopts many radio-frequency antennas to be respectively used to different passages.
The advantage in conjunction with double frequency technology and MIMO technology is wished in electronic equipment.But in order to meet the demand of the two, antenna assembly must comprise the antenna of One's name is legion.Each isolation between antennae must become a major issue.WIFIMIMO antenna major part little is in the market all adopt to increase isolating metal plate to improve isolation between antennae.The use of the antenna amount adopted in antenna assembly and isolating metal plate all hampers the miniaturization of antenna assembly.
The miniaturization of electronic equipment is main trend, and the antenna assembly wherein used also should be miniaturized.Existing antenna assembly can not meet the demand of antenna assembly miniaturization only by the increase of antenna amount.
Utility model content
The purpose of this utility model be to provide a kind of can in conjunction with the antenna assembly of double frequency technology and MIMO technology.
According to one side of the present utility model, a kind of antenna assembly is provided, comprise medium substrate, be positioned on described medium substrate and all identical first to fourth radiating antenna of structure and be positioned at reflecting plate below medium substrate and parallel, wherein, first radiating antenna and the 4th radiating antenna are mutually vertical and lay respectively at the edge of described medium substrate two parallel sides, second radiating antenna and the 3rd radiating antenna are mutually vertical and lay respectively at the edge of described medium substrate two vertical side edge, and cross polarization each other between adjacent two radiating antennas.
Preferably, in described first to fourth radiating antenna, each radiating antenna includes radiant body and grounding parts, and described radiant body and described grounding parts lay respectively on two surfaces of described medium substrate, and all in mountain font.
Preferably, described radiant body comprise the first radiation long portion, the first short portion of radiation, the second short portion of radiation and and the first connecting portion, the described first short portion of radiation and the described second short portion of radiation are symmetricly set on the both sides of described first radiation long portion, wherein, described first connecting portion connects the one end in one end of described first radiation long portion, the one end in the described first short portion of radiation and the described second short portion of radiation.
Preferably, all align with one end of described first radiation long portion in the one end in the described first short portion of radiation and the one end in the described second short portion of radiation, the other end in the described first short portion of radiation and the other end in the described second short portion of radiation all with the other end non-alignment of described first radiation long portion.
Preferably, described grounding parts comprises the first ground connection long portion, the first short portion of ground connection, the second short portion of ground connection and the second connecting portion, the described first short portion of ground connection and the described second short portion of ground connection are symmetricly set on described first ground connection long portion both sides, and described second connecting portion connects the one end in one end of described first ground connection long portion, the one end in the described first short portion of ground connection and the described second short portion of ground connection.
Preferably, all align with one end of described first ground connection long portion in the one end in the described first short portion of ground connection and the one end in the described second short portion of ground connection, the other end in the described first short portion of ground connection and the other end in the described second short portion of ground connection all with the other end non-alignment of described first ground connection long portion.
Preferably, the projection of described radiant body on the opposite flank of described medium substrate and described grounding parts symmetrical.
Preferably, the length of described first radiation long portion and the length sum of the first ground connection long portion are 1/2nd of respective resonant frequencies wavelength in the first frequency range, and the described length in the first short portion of radiation and the length sum in the short portion of the first ground connection are 1/2nd of respective resonant frequencies wavelength in the second frequency range.
Preferably, the spacing of described first to fourth radiating antenna and described reflecting plate is all greater than 1/8th of respective resonant frequencies wavelength in described second frequency range.
Preferably, described reflecting plate is rectangle, and 1.5 times of wavelength of in the described first frequency range respective resonant frequencies of growing up of rectangle, the four/three-wavelength being wider than respective resonant frequencies in described first frequency range of rectangle.
Preferably, described second radiating antenna, the 3rd radiating antenna are all at 45 ° with described first radiating antenna.
Preferably, the component of described medium substrate comprises glass-fiber-fabric, epoxy resin and the compound with described epoxy resin generation cross-linking reaction.
Preferably, the working frequency range of described antenna assembly comprises the one in 2.4GHz-2.5GHz and 5.15GHz-5.8GHz, 880MHz-960MHz and 1710MHz-1880MHz and 824MHz-894MHz and 1850-1990MHz.
Antenna assembly of the present utility model utilizes the design of irradiation structure to achieve two operating frequencies and directed radiation, utilize the design of radiation ground unit to improve isolation between antennae, thus improve communication stability and message transmission rate while antenna size can being reduced again.
Accompanying drawing explanation
By referring to the description of accompanying drawing to the utility model embodiment, above-mentioned and other objects of the present utility model, feature and advantage will be more clear, in the accompanying drawings:
Fig. 1 a-Fig. 1 b is the structural upright schematic diagram watched from different directions according to antenna assembly of the present utility model;
Fig. 2 a-Fig. 2 c is the structural upright schematic diagram watched from different directions and the vertical view of the radiating antenna adopted in antenna assembly;
Fig. 3 is the curve chart of voltage standing wave ratio with frequency change of antenna assembly;
Fig. 4 is the curve chart of S parameter value with frequency change of antenna assembly;
Fig. 5 is the antenna pattern of antenna assembly under 2450MH; And
Fig. 6 is the antenna pattern of antenna assembly under 5500MHz.
Embodiment
Below in conjunction with accompanying drawing, several preferred embodiment of the present utility model is described in detail, but the utility model is not restricted to these embodiments.The utility model contain any make in spirit and scope of the present utility model substitute, amendment, equivalent method and scheme.
To have the utility model to make the public and understand thoroughly, in following the utility model preferred embodiment, describe concrete details in detail, and do not have the description of these details also can understand the utility model completely for a person skilled in the art.
Fig. 1 a-1b is the structural upright schematic diagram according to antenna assembly of the present utility model, wherein Fig. 1 a illustrate from directly over viewing schematic perspective view, Fig. 1 b illustrate from immediately below viewing schematic perspective view.Antenna assembly comprises medium substrate 100 and to be positioned on described medium substrate 100 and all identical the first radiating antenna 200, second radiating antenna 300, the 3rd radiating antenna 400 and the 4th radiating antenna 500 of structure.Medium substrate 100 comprises glass-fiber-fabric, epoxy resin and the compound with described epoxy resin generation cross-linking reaction.This antenna assembly also comprises reflecting plate 600 that is parallel and that be positioned at below medium substrate 100.
Medium substrate 100 is such as made up of with the compound of described epoxy resin generation cross-linking reaction glass-fiber-fabric, epoxy resin and comprising.Irradiation structure and radiation floor are such as formed by the metal level of patterning, or are formed by electrically conductive ink printing.Metal level can be made up of the one be selected from gold, silver, copper, aluminium or iron.Preferably, metal level is made up of copper, to take into account cost and the performance of antenna.Reflecting plate 600 is such as metallic plate, medium cover copper metallic plate, plastic cement plated metal plate, by the radiation reflective of first to fourth radiating antenna to contrary direction.
First radiating antenna 200 and the 4th radiating antenna 500 are mutually vertical and lay respectively at the edge of described medium substrate 100 liang of parallel sides, second radiating antenna 300 and the 3rd radiating antenna 400 are mutually vertical and lay respectively at the edge of described medium substrate 100 liang of vertical side edge, described second radiating antenna 300, the 3rd radiating antenna 400 are all at 45 ° with described first radiating antenna 200, to make cross polarization each other between two adjacent radiating antennas.Adopt four feed lines, such as coaxial lines, respectively to the distributing point FD feed of the first radiating antenna 200, second radiating antenna 300, the 3rd radiating antenna 400 and the 4th radiating antenna 500.
Each radiating antenna of first to fourth radiating antenna includes radiant body and grounding parts, and described radiant body and described grounding parts lay respectively on two surfaces of described medium substrate.The profile of described radiant body and described grounding parts is all in mountain font.
The spacing of described first to fourth radiating antenna and described reflecting plate 600 is all greater than 1/8th of respective resonant frequencies wavelength in the second frequency range.
In the present embodiment, the working frequency range of antenna assembly comprises the one in 2.4GHz-2.5GHz and 5GHz-5.8GHz, 880MHz-960MHz and 1710MHz-1880MHz and 824MHz-894MHz and 1850-1990MHz.The first resonance frequency now can be positioned at the working frequency range of 2.4GHz-2.5GHz, also can be positioned at the working frequency range of 880MHz-960MHz or 824MHz-894MHz.
Fig. 2 a-Fig. 2 c is the structural upright schematic diagram watched from different directions and the vertical view of the radiating antenna adopted in antenna assembly.Wherein, Fig. 2 a illustrates the schematic perspective view from top viewing, and Fig. 2 b illustrates the schematic perspective view watched from below, and Fig. 2 c shows the vertical view of radiating antenna.This antenna is such as the first radiating antenna 200 in Fig. 1.As mentioned above, the first radiating antenna 200 comprises radiant body 210 and grounding parts 220, and wherein, radiant body 210 and grounding parts 220 are positioned on two surfaces of medium substrate 100.In the present embodiment, radiant body 210 and grounding parts 220 are such as formed by the metal level of patterning, or are formed by electrically conductive ink printing, metal level can be made up of the one be selected from gold, silver, copper, aluminium or iron, preferably, metal level is made up of copper, to take into account cost and the performance of antenna.
Radiant body 210 comprises the first short portion 213 of radiation long portion 211, first radiation short portion 212, second radiation and the first grounding parts 214, the first short portion of radiation 212 and the short portion 213 of the second radiation are symmetricly set on the first radiation long portion 211 both sides, and described first connecting portion 214 connects the one end in one end of described first radiation long portion 211, the one end in the described first short portion of radiation 212 and the described second short portion 213 of radiation.Wherein, align with one end of the first radiation long portion 211 in the one end in the first short portion of radiation 212 and the one end in the short portion 213 of the second radiation, the other end in the first short portion of radiation 212 and the other end in the short portion 213 of the second radiation and the other end non-alignment of the first radiation long portion 211.
Grounding parts 220 comprises the first short portion 223 of ground connection long portion 221, first ground connection short portion 222, second ground connection and the second connecting portion 224, the first short portion of ground connection 222 and the short portion 223 of the second ground connection are symmetricly set on the first ground connection long portion 221 both sides, and described second connecting portion 224 connects the one end in one end of described first ground connection long portion 221, the one end in the described first short portion of ground connection 222 and the described second short portion 223 of ground connection.Wherein, align with one end of the first ground connection long portion 221 in the one end in the first short portion of ground connection 222 and the one end in the short portion 223 of the second ground connection, the other end in the first short portion of ground connection 222 and the other end in the short portion 223 of the second ground connection and the other end non-alignment of the first ground connection long portion 221.
The mid point of the first connecting portion 214 connects feed line, and the mid point of the second connecting portion 224 connects earth connection.Usual feed line and earth connection are coaxial cable, and the heart yearn of cable is feed line, and outer conductor is earth connection, and in the present embodiment, medium substrate 100 is provided with through hole, passes for feed line or earth connection.Such as cable is arranged on the first surface of medium substrate 100, feed line connects the mid point (distributing point) of the first connecting portion 214, earth connection is connected to the mid point (earth point) of the second connecting portion 224 through through hole, simplifies wiring, avoids the winding of cable.
In the present embodiment, when the length of antenna is 1/2 of electromagnetic wave signal wavelength, the transmitting and receiving of antenna are most effective.The length sum of length and the short portion 222 of the first ground connection that the length of the first radiation long portion 211 of the first radiating antenna 200 and the length sum of the first radiation ground connection long portion 221 are roughly the 1/2nd, first short portion of radiation 212 of respective resonant frequencies wavelength in the first frequency range is roughly 1/2nd of respective resonant frequencies wavelength in the second frequency range.The transmitting and receiving of antenna are most effective.
In the present embodiment, in antenna assembly, the working frequency range of each radiating antenna is 2.4GHz-2.5GHz and 5GHz-5.8GHz, the first resonance frequency is now located in the working frequency range of 2.4GHz-2.5GHz, and the second resonance frequency is located in the working frequency range of 5GHz-5.8GHz.
In the present embodiment, the response of the length major effect antenna low-frequency range of the first radiation long portion 211 and the first ground connection long portion 221, the response of the length major effect antenna high band in the first short portion of radiation 212 and the short portion 222 of the first ground connection.Therefore, by regulating the length in the first radiation long portion 211 and the short portion of the first radiation 212 and the first ground connection long portion 221 and the short portion 222 of the first ground connection, dual frequency radiation characteristic can be realized.
Fig. 3 is the curve chart of voltage standing wave ratio with frequency change of antenna assembly, and Fig. 4 is the curve chart of S parameter value with frequency change of antenna assembly.This antenna assembly reflection coefficient S11 under 2.4GHz-2.5GHz and 5.15GHz-5.85GHz two working frequency range is all less than-10dB, and voltage standing wave ratio is all less than 2.And isolation is less than-15dB under the working frequency range of 2.4GHz-2.5GHz, under the working frequency range of 5.15GHz-5.85GHz, isolation is less than-25dB.This shows that this antenna assembly has less return loss under two frequency ranges, improves the isolation between four radiating antennas.
Fig. 5 is the antenna pattern of antenna assembly under 2450MH, and Fig. 6 is the antenna pattern of antenna assembly under 5500MHz.Antenna pattern refers at the figure changed with direction from the relative field strength (normalization modulus value) of antenna a distance radiation field.As can be seen from Fig. 5 to 6, this antenna assembly has good directional diagram at two working frequency range, and shows directional characteristic.The antenna gain of this antenna assembly significantly improves relative to traditional antenna, thus improves antenna radiation efficiency.
According to embodiment of the present utility model as described above, these embodiments do not have all details of detailed descriptionthe, do not limit the specific embodiment that this utility model is only described yet.Obviously, according to above description, can make many modifications and variations.This specification is chosen and is specifically described these embodiments, is to explain principle of the present utility model and practical application better, thus makes art technical staff that the utility model and the amendment on the utility model basis can be utilized well to use.The utility model is only subject to the restriction of claims and four corner and equivalent.
Claims (13)
1. an antenna assembly, it is characterized in that, comprise medium substrate, be positioned on described medium substrate and all identical first to fourth radiating antenna of structure and be positioned at reflecting plate below medium substrate and parallel, wherein, first radiating antenna and the 4th radiating antenna are mutually vertical and lay respectively at the edge of described medium substrate two parallel sides, second radiating antenna and the 3rd radiating antenna are mutually vertical and lay respectively at the edge of described medium substrate two vertical side edge, and cross polarization each other between adjacent two radiating antennas.
2. antenna assembly according to claim 1, it is characterized in that, in described first to fourth radiating antenna, each radiating antenna includes radiant body and grounding parts, and described radiant body and described grounding parts lay respectively on two surfaces of described medium substrate, and all in mountain font.
3. antenna assembly according to claim 2, it is characterized in that, described radiant body comprise the first radiation long portion, the first short portion of radiation, the second short portion of radiation and and the first connecting portion, the described first short portion of radiation and the described second short portion of radiation are symmetricly set on the both sides of described first radiation long portion, wherein, described first connecting portion connects the one end in one end of described first radiation long portion, the one end in the described first short portion of radiation and the described second short portion of radiation.
4. antenna assembly according to claim 3, it is characterized in that, align in the one end in the described first short portion of radiation and the one end in the described second short portion of radiation one end that is all connected with one end of described first radiation long portion, the other end in the described first short portion of radiation and the other end in the described second short portion of radiation all with the other end non-alignment of described first radiation long portion.
5. antenna assembly according to claim 4, it is characterized in that, described grounding parts comprises the first ground connection long portion, the first short portion of ground connection, the second short portion of ground connection and the second connecting portion, the described first short portion of ground connection and the described second short portion of ground connection are symmetricly set on described first ground connection long portion both sides, and described second connecting portion connects the one end in one end of described first ground connection long portion, the one end in the described first short portion of ground connection and the described second short portion of ground connection.
6. antenna assembly according to claim 5, it is characterized in that, all align with one end of described first ground connection long portion in the one end in the described first short portion of ground connection and the one end in the described second short portion of ground connection, the other end in the described first short portion of ground connection and the other end in the described second short portion of ground connection all with the other end non-alignment of described first ground connection long portion.
7. antenna assembly according to claim 6, is characterized in that, the projection of described radiant body on the opposite flank of described medium substrate and described grounding parts symmetrical.
8. antenna assembly according to claim 7, it is characterized in that, the length of described first radiation long portion and the length sum of the first ground connection long portion are 1/2nd of respective resonant frequencies wavelength in the first frequency range, and the described length in the first short portion of radiation and the length sum in the short portion of the first ground connection are 1/2nd of respective resonant frequencies wavelength in the second frequency range.
9. antenna assembly according to claim 8, is characterized in that, the spacing of described first to fourth radiating antenna and described reflecting plate is all greater than 1/8th of respective resonant frequencies wavelength in described second frequency range.
10. antenna assembly according to claim 8, it is characterized in that, described reflecting plate is rectangle, and 1.5 times of wavelength of in the described first frequency range respective resonant frequencies of growing up of rectangle, the four/three-wavelength being wider than respective resonant frequencies in described first frequency range of rectangle.
11. antenna assemblies according to claim 1, is characterized in that, described second radiating antenna, the 3rd radiating antenna are all at 45 ° with described first radiating antenna.
12. antenna assemblies according to claim 1, is characterized in that, the component of described medium substrate comprises glass-fiber-fabric, epoxy resin and the compound with described epoxy resin generation cross-linking reaction.
13. antenna assemblies according to claim 1, it is characterized in that, the working frequency range of described antenna assembly comprises the one in 2.4GHz-2.5GHz and 5.15GHz-5.8GHz, 880MHz-960MHz and 1710MHz-1880MHz and 824MHz-894MHz and 1850-1990MHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520353766.8U CN204760533U (en) | 2015-05-27 | 2015-05-27 | Antenna device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520353766.8U CN204760533U (en) | 2015-05-27 | 2015-05-27 | Antenna device |
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| CN204760533U true CN204760533U (en) | 2015-11-11 |
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| CN201520353766.8U Active CN204760533U (en) | 2015-05-27 | 2015-05-27 | Antenna device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958215A (en) * | 2016-05-19 | 2016-09-21 | 深圳市天鼎微波科技有限公司 | Long term evolution (LTE) array antenna based on thermosetting polymer alloy (TPA) board |
| CN106532233A (en) * | 2016-06-29 | 2017-03-22 | 深圳市中兴物联科技股份有限公司 | Helical antenna |
| WO2017114063A1 (en) * | 2015-12-29 | 2017-07-06 | 华为技术有限公司 | Antenna and communication device |
| CN109088153A (en) * | 2018-08-03 | 2018-12-25 | 瑞声光电科技（苏州）有限公司 | A kind of ultra wide band mimo antenna and terminal |
-
2015
- 2015-05-27 CN CN201520353766.8U patent/CN204760533U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017114063A1 (en) * | 2015-12-29 | 2017-07-06 | 华为技术有限公司 | Antenna and communication device |
| US10734720B2 (en) | 2015-12-29 | 2020-08-04 | Huawei Technologies Co., Ltd. | Antenna and communications device |
| CN105958215A (en) * | 2016-05-19 | 2016-09-21 | 深圳市天鼎微波科技有限公司 | Long term evolution (LTE) array antenna based on thermosetting polymer alloy (TPA) board |
| CN105958215B (en) * | 2016-05-19 | 2019-01-18 | 深圳市天鼎微波科技有限公司 | A kind of LTE array antenna based on thermosetting polymeric composite board |
| CN106532233A (en) * | 2016-06-29 | 2017-03-22 | 深圳市中兴物联科技股份有限公司 | Helical antenna |
| CN109088153A (en) * | 2018-08-03 | 2018-12-25 | 瑞声光电科技（苏州）有限公司 | A kind of ultra wide band mimo antenna and terminal |
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Effective date of registration: 20210226 Address after: 2 / F, software building, No.9, Gaoxin Zhongyi Road, Nanshan District, Shenzhen City, Guangdong Province Patentee after: KUANG-CHI INSTITUTE OF ADVANCED TECHNOLOGY Address before: 518000 Guangdong, Shenzhen, Futian District, Shennan Road and colored field road intersection C East Block New World Plaza 2007-27 Patentee before: KUANG-CHI INTELLIGENT PHOTONIC TECHNOLOGY Ltd. |
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