CN107240767A - A kind of tablet antenna - Google Patents
A kind of tablet antenna Download PDFInfo
- Publication number
- CN107240767A CN107240767A CN201710194687.0A CN201710194687A CN107240767A CN 107240767 A CN107240767 A CN 107240767A CN 201710194687 A CN201710194687 A CN 201710194687A CN 107240767 A CN107240767 A CN 107240767A
- Authority
- CN
- China
- Prior art keywords
- slab
- dielectric
- microstrip line
- line unit
- feeding microstrip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002184 metal Substances 0.000 claims abstract description 14
- 230000001413 cellular effect Effects 0.000 claims description 2
- 230000003628 erosive effect Effects 0.000 claims description 2
- 230000001939 inductive effect Effects 0.000 abstract description 3
- 230000003071 parasitic effect Effects 0.000 abstract description 3
- 230000005855 radiation Effects 0.000 abstract description 3
- 238000002955 isolation Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
Landscapes
- Waveguide Aerials (AREA)
Abstract
The invention provides a kind of tablet antenna, including：One dielectric-slab, the front of the dielectric-slab is provided with a bowtie shaped slot unit, and the bowtie shaped slot unit is constituted by a rectangular channel and positioned at the rectangular channel two ends and mutually symmetrical with wing, and the subtended angle of the wing is θ；The back side of the dielectric-slab is provided with a feeding microstrip line unit, one end connection feed port of the feeding microstrip line unit, and the feeding microstrip line unit is provided with a metal derby close to the side of feed port；Wherein, the feeding microstrip line unit is between the positive projection of dielectric-slab is located at two symmetrical wings, and two wing axle centered on feeding microstrip line unit is symmetrical.Compared with prior art, the present invention realizes the isolation of feed layer and radiating layer, eliminates the two mutual influence, while effectively overcoming the parasitic radiation of inductive effect that traditional feeding classification brings and feeding network, improves radianting capacity and the gain of antenna.
Description
Technical field
The invention belongs to wireless communication technology field, and in particular to be a kind of broadband, high-gain tablet antenna.
Background technology
With continuing to develop for microwave technology, microwave radio has been applied in all trades and professions, affect we life,
Study and work, the WIFI being seen everywhere, intelligence wearing technology and intelligent distant control technology etc..Current small-sized, simplicity on the market
2.4GHz antennas be generally whip antenna, it has the advantages that small volume, cheap, but there is also standing wave it is poor, increase
Beneficial relatively low, the weak defect of radianting capacity.
The content of the invention
Therefore, it is an object of the invention to provide the 2.4GHz tablet antennas of a kind of broadband, high-gain.
The purpose of the present invention is achieved through the following technical solutions.
A kind of tablet antenna, including：One dielectric-slab, the front of the dielectric-slab is provided with a bowtie shaped slot unit, the butterfly
Shape groove unit is constituted by a rectangular channel and positioned at the rectangular channel two ends and mutually symmetrical with wing, and the subtended angle of the wing is θ；Institute
The back side for giving an account of scutum is provided with a feeding microstrip line unit, one end connection feed port of the feeding microstrip line unit, and institute
State feeding microstrip line unit and the side of feed port is provided with a metal derby；Wherein, the feeding microstrip line unit is being situated between
The positive projection of scutum is located between two symmetrical wings, and two wing axle or so pair centered on feeding microstrip line unit
Claim.
Preferably, the upper front of the dielectric-slab is arranged with a radiant body in parallel, and the radiant body is located at the bowtie shaped slot
The surface of unit, and spacing H1 therebetween is 7~13mm.
Preferably, the front of the dielectric-slab is the empty formation bowtie shaped slot of erosion in the middle of metal ground plane, and the metal ground plane
Cellular zone.
Preferably, the subtended angle θ of the wing is between 30 °~150 °.
Preferably, the subtended angle θ of the wing is 50 °.
Preferably, the lower rear of the dielectric-slab is arranged with a reflector in parallel, and it is micro- that the reflector is located at the feed
Underface with line unit, and spacing H2 therebetween is 9~15mm.
The tablet antenna that the present invention is provided, is provided with bowtie shaped slot unit in the front-side ground plane of dielectric-slab, and butterfly
Radiant body is provided with above groove unit；Feeding microstrip line unit is provided with the back side of dielectric-slab, feeding microstrip line unit
Lower section is provided with reflector.Compared with prior art, the present invention realizes the isolation of feed layer and radiating layer, eliminates the two phase
Influence between mutually, while effectively overcoming the parasitic radiation of inductive effect that traditional feeding classification brings and feeding network, is improved
The radianting capacity of antenna and gain.
Brief description of the drawings
Fig. 1 is the structural representation of inventive antenna；
Fig. 2 is the structural representation of present media plate；
Fig. 3 is the front schematic view of present media plate；
Fig. 4 is the schematic rear view of present media plate；
Fig. 5 is the structural representation of radiant body of the present invention；
Fig. 6 is the structural representation of reflector of the present invention.
Identifier declaration in figure：Dielectric-slab 10, front 11, bowtie shaped slot unit 111, the back side 12, feeding microstrip line unit 121,
Metal derby 122, feed port 123, radiant body 20, reflector 30.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Refer to shown in Fig. 1, Fig. 1 is the structural representation of inventive antenna.It is small flat the invention provides a kind of 2.4GHz
Plate antenna, it includes dielectric-slab 10, the radiant body 20 (see Fig. 5) for being arranged at the top of dielectric-slab 10 and is arranged at dielectric-slab 10
The reflector 30 of lower section (see Fig. 6).
As shown in Figure 2 to 4, the front 11 of dielectric-slab 10 is ground plane (metal covering), corrodes on ground plane one and do not have
There is the region of metal, be correspondingly formed bowtie shaped slot unit 111.
In addition to bowtie shaped slot unit 111 it is metal covering on ground plane, wherein bowtie shaped slot unit 111 is by a rectangle
Groove and constituted positioned at rectangular channel two ends and mutually symmetrical with wing (see Fig. 3).
In other embodiment, bowtie shaped slot unit directly can be also made up of two symmetrical wings, without in
Between rectangular channel.
The subtended angle of the wing of bowtie shaped slot unit 111 be θ, wherein θ between 30 °~150 °, and in the present embodiment preferably
For 50 °.
It should be noted that the wing subtended angle θ of butterfly groove profile, the side length of wing and width are all by center of antenna frequency and needed
What the frequency band of broadening was determined.
The back side 12 of dielectric-slab 10 is provided with feeding microstrip line unit 121, and the feeding microstrip line unit 121 is metal, and
And the length and width of feeding microstrip line unit 121 is determined according to the material of dielectric-slab, center frequency point and with port Impedance value
It is fixed.
One end connection feed port 123 of feeding microstrip line unit 121, and the feeding microstrip line unit 121 is close to feedback
The side of electric port 123 is provided with a metal derby 122, by set metal derby 122 can be very good to realize feed element with
Impedance matching between feed port (see Fig. 4).
The present embodiment uses 50 Ω coaxial feeding, big with pressure-resistant, power capacity, smaller, the simple easily matching that decays,
The advantage of highly versatile.
Wherein, the feeding microstrip line unit is between the positive projection of dielectric-slab is located at two symmetrical wings, and described two
Wing axle centered on feeding microstrip line unit is symmetrical (see Fig. 2).
The spacing between bowtie shaped slot unit 111 and radiant body 20 on dielectric-slab 10 is that H1 is 7~13mm, and radiant body 20 is
The distance that H1 is selected in one piece of metallic plate, the present embodiment is to ensure that radiating element receives feeding microstrip line and bowtie shaped slot couple feed
Optimal and radianting capacity is strong, and make it that antenna volume is small.
Spacing H2 on reflector 30 and dielectric-slab 10 between feeding microstrip line unit 121 is 9~15mm, and H2 height
Both it can guarantee that antenna performance was optimal, while also make it that the cumulative volume of antenna is minimum.
It should be noted that the dielectric-slab used in the present embodiment is rectangular slab, can also in some other embodiment
Using circular slab, elliptical flat-plate or other sketch plates, no matter but its medium plate shape for using how or bowtie shaped slot list
Member, feeding microstrip line cell configuration do certain deformation, should not be construed the limit value to the present invention.
The features such as antenna that the present embodiment is provided has frequency range band high gain, feeding microstrip line unit is located at medium plate earthing
The back side in face；Bowtie shaped slot unit is the butterfly corrosion region on dielectric-slab ground plane, and two wings of bowtie shaped slot are with fed microstrip
It is symmetrical centered on line；Signal source is radiate by feed microstrip line by bowtie shaped slot coupling, and the design ground plane will be fed
Layer and radiating layer are kept apart, and the two mutual influence are eliminated, while effectively overcoming the inductive effect that traditional feeding classification is brought
With the parasitic radiation of feeding network.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (6)
1. a kind of tablet antenna, it is characterised in that including：One dielectric-slab, the front of the dielectric-slab is provided with a bowtie shaped slot list
Member, the bowtie shaped slot unit is constituted by a rectangular channel and positioned at the rectangular channel two ends and mutually symmetrical with wing, the wing
Subtended angle is θ；The back side of the dielectric-slab is provided with a feeding microstrip line unit, one end connection feed of the feeding microstrip line unit
Port, and the feeding microstrip line unit is provided with a metal derby close to the side of feed port；Wherein, the feeding microstrip line
Unit is located in the positive projection of dielectric-slab between two symmetrical wings, and two wing axle centered on feeding microstrip line unit
It is symmetrical.
2. tablet antenna as claimed in claim 1, it is characterised in that the upper front of the dielectric-slab is arranged with one in parallel
Radiant body, the radiant body is located at the surface of the bowtie shaped slot unit, and spacing H1 therebetween is 7~13mm.
3. tablet antenna as claimed in claim 2, it is characterised in that the front of the dielectric-slab is metal ground plane, and
Erosion is empty in the middle of the metal ground plane forms bowtie shaped slot cellular zone.
4. tablet antenna as claimed in claim 3, it is characterised in that the subtended angle θ of the wing between 30 °~150 ° it
Between.
5. tablet antenna as claimed in claim 4, it is characterised in that the subtended angle θ of the wing is 50 °.
6. tablet antenna as claimed in claim 3, it is characterised in that the lower rear of the dielectric-slab is arranged with one in parallel
Reflector, the reflector is located at the underface of the feeding microstrip line unit, and spacing H2 therebetween is 9~15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710194687.0A CN107240767A (en) | 2017-03-29 | 2017-03-29 | A kind of tablet antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710194687.0A CN107240767A (en) | 2017-03-29 | 2017-03-29 | A kind of tablet antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107240767A true CN107240767A (en) | 2017-10-10 |
Family
ID=59984025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710194687.0A Pending CN107240767A (en) | 2017-03-29 | 2017-03-29 | A kind of tablet antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107240767A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109921181A (en) * | 2019-04-10 | 2019-06-21 | 西南交通大学 | A kind of bilayer butterfly antenna |
| CN111602299A (en) * | 2017-11-10 | 2020-08-28 | 雷神公司 | Thin radiator for Additive Manufacturing Technology (AMT) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5355143A (en) * | 1991-03-06 | 1994-10-11 | Huber & Suhner Ag, Kabel-, Kautschuk-, Kunststoffwerke | Enhanced performance aperture-coupled planar antenna array |
| GB0513053D0 (en) * | 2005-06-27 | 2005-08-03 | Samsung Electronics Uk Ltd | Antenna system |
| CN103222114A (en) * | 2010-09-07 | 2013-07-24 | 庄昆杰 | Dual-polarized microstrip antenna |
| CN104681971A (en) * | 2015-02-16 | 2015-06-03 | 零八一电子集团有限公司 | Broadband micro-strip antenna array coupling structure |
| CN206558682U (en) * | 2017-03-29 | 2017-10-13 | 深圳市科卫泰实业发展有限公司 | A kind of tablet antenna |
-
2017
- 2017-03-29 CN CN201710194687.0A patent/CN107240767A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5355143A (en) * | 1991-03-06 | 1994-10-11 | Huber & Suhner Ag, Kabel-, Kautschuk-, Kunststoffwerke | Enhanced performance aperture-coupled planar antenna array |
| GB0513053D0 (en) * | 2005-06-27 | 2005-08-03 | Samsung Electronics Uk Ltd | Antenna system |
| CN103222114A (en) * | 2010-09-07 | 2013-07-24 | 庄昆杰 | Dual-polarized microstrip antenna |
| CN104681971A (en) * | 2015-02-16 | 2015-06-03 | 零八一电子集团有限公司 | Broadband micro-strip antenna array coupling structure |
| CN206558682U (en) * | 2017-03-29 | 2017-10-13 | 深圳市科卫泰实业发展有限公司 | A kind of tablet antenna |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111602299A (en) * | 2017-11-10 | 2020-08-28 | 雷神公司 | Thin radiator for Additive Manufacturing Technology (AMT) |
| CN109921181A (en) * | 2019-04-10 | 2019-06-21 | 西南交通大学 | A kind of bilayer butterfly antenna |
| CN109921181B (en) * | 2019-04-10 | 2024-05-14 | 西南交通大学 | Double-layer butterfly antenna |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171010 |