CN102694244B - An antenna - Google Patents
An antenna Download PDFInfo
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- CN102694244B CN102694244B CN201110070406.3A CN201110070406A CN102694244B CN 102694244 B CN102694244 B CN 102694244B CN 201110070406 A CN201110070406 A CN 201110070406A CN 102694244 B CN102694244 B CN 102694244B
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- radiation
- department
- antenna
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- substrate
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Abstract
The invention provides an antenna comprising a substrate, a grounding part, a plurality of radiation parts, a plurality of feed-in parts, and a plurality of parasitic parts. The radiation parts and the grounding part are disposed on the first face of the substrate and the feed-in parts and the parasitic parts are disposed on the second face of the substrate. The first face is opposite to the second face. The plurality of radiation parts are connected with one side of the grounding part and each of radiation parts has two connection parts spaced from each other. Two oscillator arms extend outward from the top ends of the two connection parts in opposite directions and form a dipole antenna unit. Each of the feed-in parts, which respectively corresponds to a radiation part, is connected with a connection part of the corresponding radiation part via metal through-holes in the substrate. The grounding part, the plurality of radiation parts, the plurality of feed-in parts and the plurality of parasitic parts can be disposed on the substrate through the pattern of printing and has the simple structure.
Description
Technical field
The present invention relates to a kind of antenna.
Background technology
The radiofrequency signal of radio transmitter output, is sent to antenna via feeder line, and antenna is radiated the external world with electromagnetic form again, when electromagnetic wave is sent to acceptance point, by antenna reception electromagnetic wave, then via feeder line, radiofrequency signal is sent to wireless receiver.
Generally speaking, antenna is comprised of Electric and magnetic fields to extraradial electromagnetic wave, and wherein direction of an electric field is antenna polarization direction.Therefore, the antenna of different polarised directions can receive and also former thereby different because of polarised direction difference of the electromagnetic wave of radiation.
The complex structural designs of antenna, need to consider the problems such as gain, impedance matching and size of antenna, relatively makes the process manufactured comparatively difficult.Therefore,, in order to simplify the manufacture difficulty of antenna, related researcher constantly carries out the improvement of antenna structure.
Summary of the invention
In view of this, the invention provides a kind of antenna that is easy to manufacture simple in structure.
An antenna, comprises substrate, grounding parts, a plurality of Department of Radiation, a plurality of feeding portion and a plurality of Parasitica, and this Department of Radiation and grounding parts are positioned at the first surface of this substrate, and this feeding portion and parasitic site are in second of this substrate, and this first surface is relative with this second; The plurality of Department of Radiation is connected in respectively one side of this grounding parts, and each Department of Radiation comprises the connecting portion of two spaces, and the top of these two connecting portions is extended with respectively oscillator arms in the opposite direction, and these two oscillator arms form dipole antenna elements; The respectively corresponding Department of Radiation of each feeding portion, each feeding portion is connected by a connecting portion of the Department of Radiation corresponding with it of the metal throuth hole on this substrate.
Antenna of the present invention can be arranged on substrate by the mode of printing, and simple in structure.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of antenna of the present invention.
Fig. 2 is the schematic diagram of another angle of antenna of the present invention.
Fig. 3 is the electromagnetic radiation diagram of the XZ plane of Department of Radiation 40a in the coordinate system shown in Fig. 2.
Fig. 4 is the electromagnetic radiation diagram of the YZ plane of Department of Radiation 40a in the coordinate system shown in Fig. 2.
Fig. 5 is the electromagnetic radiation diagram of the XY plane of Department of Radiation 40a in the coordinate system shown in Fig. 2.
Fig. 6 is the electromagnetic radiation diagram of the XZ plane of Department of Radiation 40b in the coordinate system shown in Fig. 2.
Fig. 7 is the electromagnetic radiation diagram of the YZ plane of Department of Radiation 40b in the coordinate system shown in Fig. 2.
Fig. 8 is the electromagnetic radiation diagram of the XY plane of Department of Radiation 40b in the coordinate system shown in Fig. 2.
Fig. 9 is the electromagnetic radiation diagram of the XZ plane of Department of Radiation 40c in the coordinate system shown in Fig. 2.
Figure 10 is the electromagnetic radiation diagram of the YZ plane of Department of Radiation 40c in the coordinate system shown in Fig. 2.
Figure 11 is the electromagnetic radiation diagram of the XY plane of Department of Radiation 40c in the coordinate system shown in Fig. 2.
Figure 12 is the electromagnetic radiation diagram of the XZ plane of Department of Radiation 40d in the coordinate system shown in Fig. 2.
Figure 13 is the electromagnetic radiation diagram of the YZ plane of Department of Radiation 40d in the coordinate system shown in Fig. 2.
Figure 14 is the electromagnetic radiation diagram of the XY plane of Department of Radiation 40d in the coordinate system shown in Fig. 2.
Main element symbol description
| Antenna | 10 |
| Substrate | 20 |
| Grounding parts | 30 |
| The first square department | 31 |
| The second square department | 32 |
| Department of Radiation | 40a、40b、40c、40d |
| Bar shaped connecting portion | 41a、41b |
| Protuberance | 42 |
| Oscillator arms | 43a、43b |
| Long limit | 431 |
| Minor face | 432 |
| Hypotenuse | 433 |
| Side | 434 |
| Feeding portion | 50 |
| Horizontal part | 51 |
| Vertical portion | 52 |
| Parasitism bar shaped portion | 60 |
Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
Embodiment
Consult Fig. 1 and Fig. 2, antenna 10 comprises square non-metal base plate 20, and the bottom surface of this substrate 20 comprises grounding parts 30 and several Departments of Radiation, and the end face of this substrate 20 comprises several feeding portions 50 and parasitic bar shaped portion 60.
This grounding parts 30 comprises the first square department 31 and 4 the second square departments 32 that are positioned at substrate 20 centers, and these 4 the second square departments 32 are connected with a jiao of the first square department 31 respectively, and these 4 the second square departments 32 are separated mutually.In the present embodiment, the quantity of this Department of Radiation 40 is 4, one side each Department of Radiation 40 and the first square department 31 be connected and between two the second square departments 32.
In the present embodiment, have 4 Departments of Radiation, it has identical structure, and for convenience of description, these 4 Departments of Radiation respectively label are 40a, 40b, 40c and 40d, take Department of Radiation 40a below as example description.Department of Radiation 40a integral body is T-shaped, and it comprises two bar shaped connecting portion 41a spaced apart from each other and 41b, and the protuberance 42 protruding with the one side from the first square department 31 near one end of the first square department 31 of this connecting portion 41a and 41b is connected.The one end at the edge of the close substrate 20 of these two connecting portions 41 is stretched out respectively oscillator arms 43a and a 43b in the opposite direction.In the present embodiment, this oscillator arms 43a and 43b are symmetrical.In the present embodiment, oscillator arms 43a and 43b are roughly trapezoidal shape, comprise the long limit 431 substantially vertical with bar shaped connecting portion 41a, the minor face 432 relative and parallel with long limit 431, are connected the hypotenuse 433 of minor face 432 and bar shaped connecting portion 41a/41b and are connected the side 434 of growing limit 431 and minor face 432.This side 434 does not contact with the second square department 32.
The quantity setting of the corresponding Department of Radiation 40 of quantity of this feeding portion 50, in the present embodiment, has 4 feeding portions 50.This feeding portion 50 comprises roughly bar shaped connecting portion 41a and the orthogonal horizontal part 51 of 41b with Department of Radiation 40, this horizontal part 51 is positioned at the position on the top that approaches bar shaped connecting portion 41a and 41b, and this horizontal part 51 is across the gap between this bar shaped connecting portion 41a and 41b.This horizontal part 51 is connected with bar shaped connecting portion 41a by the metal perforation being arranged on substrate 20.
This feeding portion 50 also comprises roughly vertical with horizontal part 51 vertical portion 52, and stretch out until the position of the root of close connecting portion 41a and 41b from the end of this horizontal part 51 this vertical portion 52.When work, signal is sent to this bar shaped connecting portion 41a by feeding portion 50, is sent to this bar shaped connecting portion 41b afterwards by the coupling between bar shaped connecting portion 41a and 41b.Owing to being sent to the signal of bar shaped connecting portion 41a and 41b, have 180 phase differences of spending, this bar shaped connecting portion 41a and 41b have formed dipole antenna (dipole antenna).
The quantity setting of the corresponding Department of Radiation 40 of quantity of this parasitism bar shaped portion 60, in the present embodiment, has 4 parasitic bar shaped portions 60.Each parasitic bar shaped portion 60 is roughly positioned at the edge of substrate 20, and parallel with the oscillator arms 43a of each Department of Radiation 40 and the long limit 431 of 43b and keep preset distance.The effect of this parasitism bar shaped portion 60 is to make the angle of 3dB beamwidth (beamwidth) less.
In the present embodiment, this substrate 20 is the pcb board of 0.8 millimeter, and the material of this pcb board is FR4, and its dielectric coefficient is 3.8.This grounding parts 30, Department of Radiation 40, feeding portion 50 and parasitic bar shaped portion 60 are set on substrate 20 by mode of printing.This grounding parts 30 and Department of Radiation 40 can be one-body molded.
With reference to figure 3-14, by said structure, the polarity of 4 Departments of Radiation 40 of antenna 10 is mutually vertical, can realize polarization difference (Polarization diversity).
Antenna of the present invention can be arranged on pcb board by the mode of printing, and simple in structure.
Claims (6)
1. an antenna, comprise substrate, grounding parts, four Departments of Radiation, four feeding portions and four Parasiticas, it is characterized in that, described Department of Radiation and grounding parts are positioned at the first surface of described substrate, described feeding portion and described parasitic site be in second of described substrate, described first surface with described second relative;
Described grounding parts comprises the first square department and four the second square departments, wherein said the first square portion is positioned at described substrate center position, described in each, the second projected square part is not connected with a jiao of described the first square department, and four described the second square departments are separated mutually;
Described in each, Department of Radiation comprises the connecting portion of two spaces, the top of two described connecting portions is extended with respectively oscillator arms in the opposite direction, two described oscillator arms form dipole antenna elements, in described four Departments of Radiation at least two are connected with the different edge of described the first square department and are laid respectively between two described the second square departments by described connecting portion separately, and described in making, the polarity of at least two Departments of Radiation is mutually vertical and realize polarization difference;
The respectively corresponding described Department of Radiation of feeding portion described in each, described in each, feeding portion is connected by a described connecting portion of the described Department of Radiation corresponding with it of the metal throuth hole on described substrate.
2. antenna as claimed in claim 1, is characterized in that, described two oscillator arms of described Department of Radiation are symmetrical.
3. antenna as claimed in claim 2, it is characterized in that, described in each, oscillator arms comprises the long limit vertical with described connecting portion, the minor face relative and parallel with described long limit, is connected the hypotenuse of described minor face and bar shaped connecting portion and is connected the side of described long limit and described minor face.
4. antenna as claimed in claim 3, is characterized in that, described in each, feeding portion comprises the horizontal part vertical with described connecting portion and the vertical portion vertical with described horizontal part.
5. antenna as claimed in claim 4, is characterized in that, described Parasitica is parallel with the described horizontal part of described feeding portion.
6. antenna as claimed in claim 4, is characterized in that, the material of described substrate is that dielectric coefficient is 3.8 FR4 plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110070406.3A CN102694244B (en) | 2011-03-23 | 2011-03-23 | An antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110070406.3A CN102694244B (en) | 2011-03-23 | 2011-03-23 | An antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102694244A CN102694244A (en) | 2012-09-26 |
| CN102694244B true CN102694244B (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110070406.3A Expired - Fee Related CN102694244B (en) | 2011-03-23 | 2011-03-23 | An antenna |
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| Country | Link |
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| CN (1) | CN102694244B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104143687A (en) * | 2013-05-09 | 2014-11-12 | 中国移动通信集团浙江有限公司 | WLAN dual-frequency antenna device and communication device |
| CN103915685B (en) * | 2014-04-04 | 2016-01-13 | 清华大学 | A kind of four unit mimo antenna of the small size wide bandwidth based on printed circuit board (PCB) |
| KR102149598B1 (en) * | 2019-03-28 | 2020-08-31 | 경상대학교산학협력단 | Antenna apparatus for wide elevation |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6529171B1 (en) * | 1999-05-10 | 2003-03-04 | Alcatel | Vertical polarization antenna |
| CN101820097A (en) * | 2009-01-14 | 2010-09-01 | 莱尔德技术股份有限公司 | Dual-polarized antenna modules |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4444845B2 (en) * | 2005-02-04 | 2010-03-31 | 電気興業株式会社 | Dipole antenna |
-
2011
- 2011-03-23 CN CN201110070406.3A patent/CN102694244B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6529171B1 (en) * | 1999-05-10 | 2003-03-04 | Alcatel | Vertical polarization antenna |
| CN101820097A (en) * | 2009-01-14 | 2010-09-01 | 莱尔德技术股份有限公司 | Dual-polarized antenna modules |
Non-Patent Citations (2)
| Title |
|---|
| 带有新型寄生单元的印刷偶极子天线;李晋阳;《2009年全国天线年会》;20091013;第112页第2栏12-17行及附图1 * |
| 李晋阳.带有新型寄生单元的印刷偶极子天线.《2009年全国天线年会》.2009,第112页第2栏12-17行及附图1. * |
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| Publication number | Publication date |
|---|---|
| CN102694244A (en) | 2012-09-26 |
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