CN202839965U - Orientation MIMO antenna - Google Patents
Orientation MIMO antenna Download PDFInfo
- Publication number
- CN202839965U CN202839965U CN 201220400842 CN201220400842U CN202839965U CN 202839965 U CN202839965 U CN 202839965U CN 201220400842 CN201220400842 CN 201220400842 CN 201220400842 U CN201220400842 U CN 201220400842U CN 202839965 U CN202839965 U CN 202839965U
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- antenna
- reflector
- orientation
- mimo
- mimo antenna
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Abstract
The utility model discloses an orientation MIMO antenna, comprising a reflector and more than three pairs of independent antenna units, wherein the reflector is used for enabling the antenna units to form orientation radiation, the more than three pairs of independent antenna units are arranged on the reflector and space between the independent antenna units is greater than lambda/2. The antenna units are packaged in an antenna cover to form a multiport antenna. The orientation MIMO antenna utilizes a MIMO channel to raise wireless channel capacity. Under the premise without increasing bandwidth and antenna emission power, frequency-spectrum utilization rate is raised, channel reliability is raised, error rate is reduced, deficiency of the conventional wireless-communication network technology is overcome and requirements of next-generation wireless-communication networks are satisfied. The orientation MIMO antenna has the advantages of simple structure, low cost, small loss, high gain and stable and reliable performance, and can carry out batch production.
Description
Technical field
The utility model relates to a kind of communication directional antenna, especially a kind of directional mimo antenna.
Background technology
Current WLAN wireless communication technology is being faced with some restrictions, such as limited bandwidth and transmitting power, interference, signal attenuation and multipath effect.Microwave signal owing to being subject to the impact of ground or water-reflected and atmospheric refraction, can produce the signal that the different paths of a plurality of processes arrive receiver in communication process, by vector superposed synthetic time varying signal, thereby form the multipath interference.802.11n wireless network standards of future generation adopts intelligent antenna technology, by the aerial array that many groups stand-alone antenna forms, can dynamically adjust wave beam, guarantees to allow WLAN user receive stable signal, and can reduce other signal and disturb.802.11n core be MIMO multiple-input-multiple-output wireless communication technology, treatment technology carried out the signal processing when it adopted sky, under multi-path environment, radio MIMO system can greatly improve the availability of frequency spectrum, increases the message transmission rate of system, improve wireless transmission quality and reliability.
The utility model content
For overcoming the deficiency of conventional wireless communication network technology, and satisfy the needs of next generation wireless communication network, the utility model provides a kind of directional mimo antenna, this antenna is by utilizing mimo channel to improve the wireless channel capacity, under the prerequisite that does not increase bandwidth and antenna transmission power, improve the availability of frequency spectrum, improve simultaneously the reliability of channel, reduce the error rate.
For reaching this purpose, the utility model by the following technical solutions:
A kind of directional mimo antenna, it comprises reflector and 3 secondary above independently antenna elements, described reflector is used for making described antenna element to form directed radiation, described 3 secondary above independently antenna elements are arranged on the reflector with the arranged with interval greater than λ/2, and be packaged in the radome, form the antenna of a multiport.
Preferably, described reflector is plane sheet reflector.
Preferably, every slave antenna unit is made of a radiant body.
Be enhanced rad, preferably, every slave antenna unit is made of the radiant body more than 2 of serial or parallel connection.
Preferably, be provided with on the described radiant body for enhanced rad ability and direction-sense guider.
Preferably, described guider is tunable guider.
The beneficial effects of the utility model are: 1, by a plurality of antenna elements of encapsulation in a radome, adopt the MIMO space multiplexing technique in identical frequency band, to use a plurality of data channel receiving and transmitting signals, channel response between each transmit receive antenna is independent, by these parallel spatial channels transmission information independently, channel capacity and data transmission rate have been improved; 2, a plurality of antenna elements are installed separately, adopt the MIMO space diversity reception to communicate to improve the reliability of communication, are beneficial to simultaneously technical optimization, realize 12～20dBi high-gain; 3, the antenna unit array formula is arranged, and spacing is greater than λ/2, and isolation is high, and coefficient correlation is low.
Description of drawings
Fig. 1 is the schematic diagram of the directional mimo antenna of the utility model one embodiment;
Among the figure: 1, plane sheet reflector; 2, antenna element; 21, radiant body; 3, guider.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the utility model in detail.
As shown in Figure 1, the directional mimo antenna of the present embodiment comprises independently antenna element 2 of plane sheet reflector 1 and 3 pairs, described plane sheet reflector 1 is used for making described antenna element 2 to form directed radiation, described 3 pairs independently antenna element 2 are arranged on the plane sheet reflector 1 with the pitch arrays greater than λ/2, and be packaged in the radome, form the antenna of a multiport.
Every slave antenna unit 2 can be made of a radiant body 21, is enhanced rad, also can be made of a plurality of radiant bodies 21, and a plurality of radiant bodies 21 can adopt cascaded structure, also can adopt parallel-connection structure.
In the present embodiment, every slave antenna unit 2 is made of 3 radiant bodies 21,3 radiant body 21 series feeds, and 21 of each radiant bodies interconnect as signal transmssion line, regulate impedance matching.In addition, also be provided with for enhanced rad ability and direction-sense guider 3 on each radiant body 21.
Preferably, the guider in the present embodiment 3 is tunable guider.
The utility model is combined in a radome to a plurality of independently antenna elements and forms multichannel MIMO antenna, and each antenna element shares a subreflector, and the array element spacing is arranged greater than λ/2 and guaranteed enough coupling isolation and irrelevant decline.With this version group battle array, each antenna element is separate, and unit contains a plurality of radiant bodies, has strengthened radiation effect.Simultaneously, set up tunable guider at each radiant body, be beneficial to the direction lobe pattern that obtains high-gain.This structure is through computer modeling technique optimization, and directed radiation is strong, and directional diagram remains unchanged substantially in frequency band range.
The key technical indexes of the directional mimo antenna of the present embodiment is:
Frequency range: 2400～2500MHz;
Gain: 12dBi;
The front and back ratio:〉20dB;
Isolation:〉25dB;
Vertical plane half-power angle: 18 °;
Horizontal plane half-power angle: 60 ± 5 °;
Voltage standing wave ratio :≤1.5;
Polarization mode: perpendicular polarization.
The utility model is by utilizing mimo channel to improve the wireless channel capacity, under the prerequisite that does not increase bandwidth and antenna transmission power, improved the availability of frequency spectrum, improved simultaneously the reliability of channel, reduced the error rate, overcome the deficiency of conventional wireless communication network technology, and satisfied the needs of next generation wireless communication network, have simple in structure, cost is low, can be mass; The advantage that loss is little, gain is high, stable and reliable for performance.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (6)
1. directional mimo antenna, it is characterized in that: it comprises reflector and 3 secondary above independently antenna elements, described reflector is used for making described antenna element to form directed radiation, described 3 secondary above independently antenna elements are arranged on the reflector with the arranged with interval greater than λ/2, and be packaged in the radome, form the antenna of a multiport.
2. directional mimo antenna according to claim 1, it is characterized in that: described reflector is plane sheet reflector.
3. directional mimo antenna according to claim 1, it is characterized in that: every slave antenna unit is made of a radiant body.
4. directional mimo antenna according to claim 1, it is characterized in that: every slave antenna unit is made of the radiant body more than 2 of serial or parallel connection.
5. it is characterized in that: be provided with on the described radiant body for enhanced rad ability and direction-sense guider according to claim 3 or 4 described directional mimo antennas.
6. directional mimo antenna according to claim 5, it is characterized in that: described guider is tunable guider.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220400842 CN202839965U (en) | 2012-08-13 | 2012-08-13 | Orientation MIMO antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220400842 CN202839965U (en) | 2012-08-13 | 2012-08-13 | Orientation MIMO antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202839965U true CN202839965U (en) | 2013-03-27 |
Family
ID=47951591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220400842 Expired - Lifetime CN202839965U (en) | 2012-08-13 | 2012-08-13 | Orientation MIMO antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202839965U (en) |
-
2012
- 2012-08-13 CN CN 201220400842 patent/CN202839965U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUANGDONG KENBOTONG TECHNOLOGY CO., LTD. Free format text: FORMER NAME: JIANBOTONG TELECOMMUNICATION INDUSTRIAL CO., LTD., FOSHAN CITY |
|
| CP03 | Change of name, title or address |
Address after: 528031, Foshan City, Guangdong province Ji Hua Road West Chan Road, No. 2 Health Science Park Broadcom Patentee after: KENBOTONG TECHNOLOGY CO.,LTD. Address before: 528031, Foshan, Guangdong province Ji Hua Road West Chan Road, No. 2 health science and Technology Park, Foshan City Broadcom Telecommunications Industry Co., Ltd. Patentee before: FOSHAN KENBOTONG COMMUNICATION LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |