CN202308289U - Bidirectional radiation multi-path antenna - Google Patents
Bidirectional radiation multi-path antenna Download PDFInfo
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- CN202308289U CN202308289U CN2011204001700U CN201120400170U CN202308289U CN 202308289 U CN202308289 U CN 202308289U CN 2011204001700 U CN2011204001700 U CN 2011204001700U CN 201120400170 U CN201120400170 U CN 201120400170U CN 202308289 U CN202308289 U CN 202308289U
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Abstract
The utility model provides a bidirectional radiation multi-path antenna, comprising an antenna cover and a plurality of antenna units which are packaged in the antenna cover. Each antenna unit is used for bidirectionally radiating so as to realize bidirectional coverage. Each antenna unit can be vertically polarized or horizontally polarized. A distance between each two adjacent antenna units is 0.7-1.2 lambda, so that the bidirectional radiation multi-path antenna has the advantages of good polarized isolation and space isolation effects.
Description
Technical field
The utility model relates to a kind of bilateral antenna, especially a kind of bilateral antenna that is applicable to the mimo systems under the indoor complex environment.
Background technology
At present, existing indoor distributed system is not supported the MIMO technology of 802.11N, makes the terminal access rate pace up and down in B/G 54Mbps level, even adopt the AP of 11N, the 130Mbps speed of 11N also can't be discerned in the terminal.Under environment such as campus dormitory and hotel guest-room, the particularity of its scene requires electromagnetic wave energy radiation towards both sides.The antenna of in the past taking generally is an all-around top absorbing antenna, has two shortcomings: 1. omnidirectional radiation causes the portion of energy waste, can not the such environment of good adaptive campus dormitory.2. volume is big; 3. need plural antenna to support multichannel.
The routine techniques of realizing bidirectional is to adopt two antennas, and each antenna is responsible for direction of radiation, with power splitter two combination of antennas is got up then.This know-why is simple, but needs two slave antennas, is difficult to realize miniaturization, and cost is higher, installs and uses also more complicated.
Summary of the invention
The utility model is in order to solve above-mentioned deficiency; A kind of bidirectional multichannel antenna that proposes, it comprises radome and a plurality of antenna elements that are encapsulated in the said radome, said each antenna element is a bidirectional; To realize two-way covering; The utility model is simple in structure, with low cost simultaneously, is specially adapted to the such environment of campus dormitory.
Said each antenna element is perpendicular polarization or horizontal polarization, and preferably, the distance between said each antenna element is 0.7-1.2 λ, makes it have good polarization isolation and spatial separation effect.
Preferably, said antenna element is a printed circuit board (PCB), and two oscillator unit are arranged on each antenna element; Distance between said two oscillator unit is 0.5～0.6 λ; Simultaneously, said printed circuit board (PCB) is provided with merit and divides feeding network, to connect said two oscillator unit.
The utlity model has following advantage:
1. realize bidirectional with said oscillator unit, need not reflector, need not the double antenna combination and can realize the double antenna radiation.
2. said oscillator unit adopts the mode of planographic, technical maturity, and cost is low.
3. the bilateral antenna of vertical and horizontal double pole version can be provided, and the advantage that can give full play to polarization isolation and spatial separation.
Description of drawings
Accompanying drawing 1 is the cutaway view of the utility model bidirectional multichannel antenna;
Accompanying drawing 2 is the E face view of the utility model bidirectional multichannel antenna;
Accompanying drawing 3 is the H face view of the utility model bidirectional multichannel antenna;
Accompanying drawing 4 is the cutaway view of the embodiment 1 of the utility model bidirectional multichannel antenna;
Accompanying drawing 5 is the cutaway view of the embodiment 2 of the utility model bidirectional multichannel antenna.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further explanation.
Referring to the cutaway view of the utility model bidirectional multichannel antenna shown in Figure 1, it comprises radome and the antenna element that is positioned at said radome.Antenna element adopts the oscillator unit 1 of two plane symmetry, and the distance between it is 0.5～0.6 λ, and the middle merit that is made up of two-sided two-wire line divides 2, one sections stubs 3 of feeding network to do lightning protection usefulness.
Its spacing can be adjusted with control battle array directional diagram in two printing symmetrical dipole unit 1 that constitute antenna element, forms the directional diagram that H face and E face all present " 8 " font.Said E face is meant through antenna element greatest irradiation direction and is parallel to the plane of electric field intensity, and said H face is meant through antenna element greatest irradiation direction and is parallel to the plane of magnetic vector.The spacing of oscillator unit 1 is under perfect condition, and its H ground roll lobe width is about 60 degree, and the E face is about 70 degree, is arranged, referring to Fig. 2 and shown in Figure 3 zero point above 30dB on the non-communication direction.
Referring to 2 antenna elements of encapsulation in Fig. 4 and embodiment shown in Figure 51 and 2, one radomes of embodiment, also can according to circumstances encapsulate the antenna element more than 2 certainly, to realize 2 * 2 or the more radiation of multichannel.Spacing L between the illustrated antenna element can be 0.7～1.2 λ.
Each interior antenna element of radome can independently be adjusted polarised direction, can be horizontal or vertical direction, to give full play to the advantage of polarization isolation and spatial separation.
Referring to embodiment shown in Figure 41; Be a two-way two-way dual polarization MIMO antenna, it has adopted two element antennas, and an antenna element 4 is the perpendicular polarization state; Another antenna element 5 is a horizontal polarization state, and the spacing between two element antennas is about 0.8 λ.The gain of present embodiment 1 is 5～6dBi, and frequency range is: 2400-2500MHz, horizontal lobe width are two-way 60 °, and voltage standing wave ratio is not more than 1.5, and interport isolation is not less than 23dB.
Fig. 5 is another embodiment 2 of the utility model, is the empty MIMO of branch of a two-way two-way antenna, and the spacing that its two element antennas that adopt are between 6, two element antennas 6 in vertical polarized antenna unit is about 0.8 λ.The gain of present embodiment 2 is 5～6dBi, and frequency range is 2400-2500MHz, and horizontal lobe width is two-way 60 °, and voltage standing wave ratio is not more than 1.5, and interport isolation is not less than 23dB.
Bidirectional is realized in the bidirectional multichannel antenna oscillator unit 1 of the utility model, need not the combination of reflector or double antenna and can realize the double antenna radiation, and vertical and horizontal double poleization can be provided, and is simple in structure, with low cost.
Last institute should be noted that; Above embodiment is only in order to the technical scheme of explanation the utility model but not to the restriction of the utility model protection range; Although the utility model has been done detailed description with reference to preferred embodiment; Those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of the utility model, and do not break away from the essence and the scope of the utility model technical scheme.
Claims (6)
1. a bidirectional multichannel antenna comprises radome and a plurality of antenna elements that are encapsulated in the said radome, it is characterized in that said each antenna element is a bidirectional.
2. bidirectional multichannel antenna according to claim 1 is characterized in that the distance between said each antenna element is 0.7-1.2 λ.
3. bidirectional multichannel antenna according to claim 1 is characterized in that said each antenna element is perpendicular polarization or horizontal polarization.
4. bidirectional multichannel antenna according to claim 1 is characterized in that said antenna element is a printed circuit board (PCB), and two oscillator unit are arranged on each antenna element.
5. bidirectional multichannel antenna according to claim 4 is characterized in that, the distance between said two oscillator unit is 0.5～0.6 λ.
6. bidirectional multichannel antenna according to claim 4 is characterized in that said printed circuit board (PCB) is provided with merit and divides feeding network, to connect said two oscillator unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204001700U CN202308289U (en) | 2011-10-19 | 2011-10-19 | Bidirectional radiation multi-path antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204001700U CN202308289U (en) | 2011-10-19 | 2011-10-19 | Bidirectional radiation multi-path antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202308289U true CN202308289U (en) | 2012-07-04 |
Family
ID=46377115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204001700U Expired - Fee Related CN202308289U (en) | 2011-10-19 | 2011-10-19 | Bidirectional radiation multi-path antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202308289U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104577355A (en) * | 2014-12-31 | 2015-04-29 | 西安华为技术有限公司 | Antenna and wireless signal transmit-receive system |
| CN106374212A (en) * | 2016-11-09 | 2017-02-01 | 广东工业大学 | Compact type high isolation MIMO antenna |
| CN106876879A (en) * | 2017-03-02 | 2017-06-20 | 广东欧珀移动通信有限公司 | A kind of antenna module and terminal |
-
2011
- 2011-10-19 CN CN2011204001700U patent/CN202308289U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104577355A (en) * | 2014-12-31 | 2015-04-29 | 西安华为技术有限公司 | Antenna and wireless signal transmit-receive system |
| CN104577355B (en) * | 2014-12-31 | 2017-12-15 | 西安华为技术有限公司 | A kind of antenna and wireless signal receive-transmit system |
| CN106374212A (en) * | 2016-11-09 | 2017-02-01 | 广东工业大学 | Compact type high isolation MIMO antenna |
| CN106374212B (en) * | 2016-11-09 | 2023-05-05 | 广东工业大学 | Compact high-isolation MIMO antenna |
| CN106876879A (en) * | 2017-03-02 | 2017-06-20 | 广东欧珀移动通信有限公司 | A kind of antenna module and terminal |
| CN106876879B (en) * | 2017-03-02 | 2020-03-06 | Oppo广东移动通信有限公司 | Antenna assembly and terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20131019 |