CN104779434A - Anti-interference WiFi (wireless fidelity) dielectric printed antenna - Google Patents
Anti-interference WiFi (wireless fidelity) dielectric printed antenna Download PDFInfo
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- CN104779434A CN104779434A CN201510150895.1A CN201510150895A CN104779434A CN 104779434 A CN104779434 A CN 104779434A CN 201510150895 A CN201510150895 A CN 201510150895A CN 104779434 A CN104779434 A CN 104779434A
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- 239000002184 metal Substances 0.000 claims abstract description 75
- 230000005855 radiation Effects 0.000 claims abstract description 27
- 239000004020 conductor Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 abstract description 6
- 230000002401 inhibitory effect Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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Abstract
The invention discloses an anti-interference WiFi (wireless fidelity) dielectric printed antenna. The antenna comprises a dielectric plate, a metal radiation patch, a metal microstrip line, a metal back plate and a feed joint, wherein the metal microstrip line and the metal radiation patch are electrically connected and printed on the front side of the dielectric plate, the metal back plate is printed on the back side of the dielectric plate and half surrounds the metal radiation patch, a center feed needle of the feed joint is connected with the metal microstrip line, and an outer conductor of the feed joint is connected with the metal back plate. The metal back plate has a signal inhibiting effect, so that the antenna is a non-omnidirectional antenna and has weaker radiating capacity in one direction, and accordingly, interference signals in the direction can be inhibited very well; further, the antenna adopts a planar structure and is smaller in size, simple in structure and convenient to produce and process.
Description
Technical field
The present invention relates to wireless aerial field, more specifically, relate to a kind of WIFI anti-interference medium version printed antenna.
Background technology
The principle of WIFI antenna is that the radiofrequency signal that radio transmitter exports is transported to antenna by feeder line, and antenna radiate in the form of an electromagnetic wave.Existing WIFI antenna mostly is omnidirectional antenna, and its electromagnetic wave radiate from all directions, its defect be when two WIFI omnidirectional antennas relatively near time, the mutual interference of two antennas will have a strong impact on access rate and the message transmission rate of user.
Summary of the invention
The present invention is that existing WIFI antenna is easily disturbed thus has a strong impact on the defect of access rate and message transmission rate, provides a kind of structure simple and effectively can reduce the WIFI anti-interference medium version printed antenna of interference source impact.
For solving the problems of the technologies described above, technical scheme of the present invention is as follows:
The anti-interference dielectric-slab printed antenna of a kind of WIFI, described antenna comprises dielectric-slab, metal radiation paster, metal micro-strip line, metal backing and feed connection, described metal micro-strip line is electrically connected with metal radiation paster and is printed on the front of dielectric-slab, described metal backing is printed on the back side of dielectric-slab and metal backing semi-surrounding metal radiation paster, the apex drive pin of feed connection is connected with metal micro-strip line, and the outer conductor of feed connection is connected with metal backing.
In the preferred scheme of one, described metal radiation paster is rectangle, circle or irregularly shaped, and it is of a size of the quarter-wave of operating frequency of antenna.
In the preferred scheme of one, described dielectric-slab is Rectangular Enclosure with Participating Media plate.
In the preferred scheme of one, the relative position of described metal backing and metal radiation paster is determined according to the performance of antenna and impedance matching requirements.
In the preferred scheme of one, described metal backing is L-type, metal radiation paster described in L-type metal backing semi-surrounding.
In the preferred scheme of one, the bossing length of L-type metal backing is greater than the quarter-wave of operating frequency of antenna.
Compared with prior art, the beneficial effect of technical solution of the present invention is: the anti-interference dielectric-slab printed antenna of WIFI of the present invention, metal backing is printed on the back side of dielectric-slab and metal backing semi-surrounding metal radiation paster, and metal backing plays inhibitory action to signal, and therefore antenna of the present invention is non-omnidirectional antenna, more weak in the radianting capacity in a direction, thus suppress the interference signal in this direction well, and the present invention is planar structure, size is less, structure is simple, is convenient to production and processing.
Accompanying drawing explanation
Fig. 1 is the front schematic view of the anti-interference dielectric-slab printed antenna of WIFI of the present invention.
Fig. 2 is the schematic rear view of the anti-interference dielectric-slab printed antenna of WIFI of the present invention.
Fig. 3 is the schematic front perspective view of the anti-interference dielectric-slab printed antenna of WIFI of the present invention.
Fig. 4 is the back side perspective diagram of the anti-interference dielectric-slab printed antenna of WIFI of the present invention.
Fig. 5 is radiation pattern of the present invention.
Wherein: 1, dielectric-slab; 2, metal radiation paster; 3, metal micro-strip line; 4, metal backing; 5, feed connection; 5-1, apex drive pin; 5-2, outer conductor.
Embodiment
Accompanying drawing, only for exemplary illustration, can not be interpreted as the restriction to this patent;
In order to better the present embodiment is described, some parts of accompanying drawing have omission, zoom in or out, and do not represent the size of actual product;
To those skilled in the art, in accompanying drawing, some known features and explanation thereof may be omitted is understandable.
Below in conjunction with drawings and Examples, technical scheme of the present invention is described further.
Embodiment 1
The anti-interference dielectric-slab printed antenna of a kind of WIFI, as Figure 1-4, described antenna comprises dielectric-slab 1, metal radiation paster 2, metal micro-strip line 3, metal backing 4 and feed connection 5, described metal micro-strip line 3 is electrically connected with metal radiation paster 2 and is printed on the front of dielectric-slab 1, described metal backing 4 is printed on the back side of dielectric-slab 1 and metal backing 4 semi-surrounding metal radiation paster 1, the apex drive pin 5-1 of feed connection 5 is connected with metal micro-strip line 3, and the outer conductor 5-2 of feed connection 5 is connected with metal backing 4.
In specific implementation process, described metal radiation paster 2 is rectangle, circle or irregularly shaped, and adopt the metal radiation paster 2 of rectangle in the present embodiment, it is of a size of the quarter-wave of operating frequency of antenna.
In specific implementation process, described dielectric-slab 1 is Rectangular Enclosure with Participating Media plate.
In specific implementation process, described metal backing 4 is determined according to the performance of antenna and impedance matching requirements with the relative position of metal radiation paster 2.
In specific implementation process, described metal backing 4 is L-type, metal radiation paster 2 described in L-type metal backing 4 semi-surrounding.
In specific implementation process, the bossing length of L-type metal backing 4 is greater than the quarter-wave of operating frequency of antenna.
The anti-interference dielectric-slab printed antenna of the present embodiment WIFI, metal backing 4 is printed on the back side of dielectric-slab 1 and metal backing 4 semi-surrounding metal radiation paster 2, metal backing 4 pairs of signals play inhibitory action, therefore antenna of the present invention is non-omnidirectional antenna, more weak in the radianting capacity in a direction, thus suppresses the interference signal in this direction well, and the present invention is planar structure, size is less, and structure is simple, is convenient to production and processing.
Fig. 5 is the horizontal plane radiation pattern of the anti-interference dielectric-slab printed antenna of WIFI of the present invention, operating frequency of antenna is 2.4GHz, because the bossing length of L-type metal backing is greater than 1/4th antenna operating wavelength, metal backing plays the effect of suppression, reflected signal, the radianting capacity that antenna is blocking direction is more weak, 15dB lower than greatest irradiation direction, except the party outwards keeps good radianting capacity in other directions.Therefore, by direction the most weak for the radianting capacity of antenna towards interference source, thus the intensity that antenna receives interference source signal can be reduced, take into account the transmitting and receiving of wireless signal on other directions simultaneously.
The corresponding same or analogous parts of same or analogous label;
The term describing position relationship in accompanying drawing, only for exemplary illustration, can not be interpreted as the restriction to this patent;
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.All any amendments done within the spirit and principles in the present invention, equivalent to replace and improvement etc., within the protection range that all should be included in the claims in the present invention.
Claims (6)
1. the anti-interference dielectric-slab printed antenna of WIFI, it is characterized in that, described antenna comprises dielectric-slab (1), metal radiation paster (2), metal micro-strip line (3), metal backing (4) and feed connection (5), described metal micro-strip line (3) is electrically connected with metal radiation paster (2) and is printed on the front of dielectric-slab (1), described metal backing (4) is printed on the back side of dielectric-slab (1) and metal backing (4) semi-surrounding metal radiation paster (1), the apex drive pin (5-1) of feed connection (5) is connected with metal micro-strip line (3), the outer conductor (5-2) of feed connection (5) is connected with metal backing (4).
2. the anti-interference dielectric-slab printed antenna of WIFI according to claim 1, is characterized in that, described metal radiation paster (2) is rectangle, circle or irregularly shaped, and it is of a size of the quarter-wave of operating frequency of antenna.
3. the anti-interference dielectric-slab printed antenna of WIFI according to claim 1, is characterized in that, described dielectric-slab (1) is Rectangular Enclosure with Participating Media plate.
4. the anti-interference dielectric-slab printed antenna of WIFI according to claim 1, is characterized in that, described metal backing (4) is determined according to the performance of antenna and impedance matching requirements with the relative position of metal radiation paster (2).
5. the anti-interference dielectric-slab printed antenna of WIFI according to claim 1, is characterized in that, described metal backing (4) is L-type, metal radiation paster (2) described in L-type metal backing (4) semi-surrounding.
6. the anti-interference dielectric-slab printed antenna of WIFI according to claim 4, is characterized in that, the bossing length of L-type metal backing (4) is greater than the quarter-wave of operating frequency of antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510150895.1A CN104779434A (en) | 2015-04-01 | 2015-04-01 | Anti-interference WiFi (wireless fidelity) dielectric printed antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510150895.1A CN104779434A (en) | 2015-04-01 | 2015-04-01 | Anti-interference WiFi (wireless fidelity) dielectric printed antenna |
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| Publication Number | Publication Date |
|---|---|
| CN104779434A true CN104779434A (en) | 2015-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510150895.1A Pending CN104779434A (en) | 2015-04-01 | 2015-04-01 | Anti-interference WiFi (wireless fidelity) dielectric printed antenna |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2396746A (en) * | 2002-12-07 | 2004-06-30 | Zhipeng Wu | Dielectric resonator antenna with asymmetrical microstrip feedline and virtual ground |
| CN102509877A (en) * | 2011-11-18 | 2012-06-20 | 兰州大学 | Small-sized ultra-wide band antenna |
| CN103346399A (en) * | 2013-06-17 | 2013-10-09 | 苏州智聚电子科技有限公司 | Anti-interference wireless network antenna device |
| US8994593B2 (en) * | 2012-09-28 | 2015-03-31 | Peraso Technologies, Inc. | Near-closed polygonal chain microstrip antenna |
| CN204680746U (en) * | 2015-04-01 | 2015-09-30 | 广东顺德中山大学卡内基梅隆大学国际联合研究院 | The anti-interference dielectric-slab printed antenna of a kind of WIFI |
-
2015
- 2015-04-01 CN CN201510150895.1A patent/CN104779434A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2396746A (en) * | 2002-12-07 | 2004-06-30 | Zhipeng Wu | Dielectric resonator antenna with asymmetrical microstrip feedline and virtual ground |
| CN102509877A (en) * | 2011-11-18 | 2012-06-20 | 兰州大学 | Small-sized ultra-wide band antenna |
| US8994593B2 (en) * | 2012-09-28 | 2015-03-31 | Peraso Technologies, Inc. | Near-closed polygonal chain microstrip antenna |
| CN103346399A (en) * | 2013-06-17 | 2013-10-09 | 苏州智聚电子科技有限公司 | Anti-interference wireless network antenna device |
| CN204680746U (en) * | 2015-04-01 | 2015-09-30 | 广东顺德中山大学卡内基梅隆大学国际联合研究院 | The anti-interference dielectric-slab printed antenna of a kind of WIFI |
Non-Patent Citations (3)
| Title |
|---|
| TAKAFUMI FUJIMOTO,KOZO JONO: "Wideband printed rectangular monopole antenna for circularly polarization", 《ATENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM(APSURSI),2012 IEEE》 * |
| TAKAFUMI FUJIMOTO,KOZO JONO: "Wideband rectangular printed monopole antenna for circular polarisation", 《IET MICROWAVES,ANTENNAS & PROPAGATION》 * |
| 梁志禧等: "指向性超宽带平面单极子天线的仿真研究", 《2013年全国微波毫米波会议》 * |
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Application publication date: 20150715 |