CN107768809A - A kind of microstrip antenna of low section air dielectric - Google Patents
A kind of microstrip antenna of low section air dielectric Download PDFInfo
- Publication number
- CN107768809A CN107768809A CN201610692918.6A CN201610692918A CN107768809A CN 107768809 A CN107768809 A CN 107768809A CN 201610692918 A CN201610692918 A CN 201610692918A CN 107768809 A CN107768809 A CN 107768809A
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- China
- Prior art keywords
- metallic plate
- upper strata
- strata metallic
- plate
- transverse concave
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- 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
-
- 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
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- Waveguide Aerials (AREA)
Abstract
The present invention proposes a kind of microstrip antenna of low section air dielectric, including metal plate antennas and feeding coaxial lines；The metal plate antennas includes upper strata metallic plate and lower metal plate, two transverse concave grooves to extend internally are respectively offered in the left and right edges of the upper strata metallic plate, two transverse concave grooves of wherein homonymy are parallel to each other, and left hand edge two transverse concave grooves opened up and two transverse concave grooves that right hand edge opens up are symmetrically distributed in upper strata metallic plate；The two parallel longitudinal flutings to extend internally are offered in the upper strata metallic plate leading edge, longitudinal fluting is vertical with transverse concave groove, and two parallel longitudinal flutings are symmetrically distributed in upper strata metallic plate；The metal band formed between two parallel longitudinal flutings extends outward the leading edge of upper strata metallic plate；The inner core of the feeding coaxial lines and the end of metal band are connected, and screen layer is connected with lower metal plate.The present invention has the characteristics of small volume, in light weight, loss is low, radiation characteristic is good.
Description
Technical field
The invention belongs to communication technical field, and in particular to a kind of low section for being operated in WLAN frequency ranges in radio communication
Air dielectric microstrip antenna.
Background technology
With the fast development of wireless communication system, the research of high performance antenna is also increasingly by scholar all over the world
Extensive concern.It is particularly suitable for local wireless local area network (WLAN) microstrip antenna, even more current study hotspot.
At present, realizing the method for microstrip antenna miniaturization typically has three kinds：The first is the medium using high-k
Plate, but high dielectric constant plate often brings and the shortcomings that excessive is lost, it is conflicting with efficient characteristic；Second
Method is by loading groove in chip surface, changing current path；The third method is on the ground that chip surface electric current is zero
Side's loading ground wire, this method can typically reduce the size of half.In addition, existing WLAN antennas are mostly omnidirectional antenna, this
Although kind of antenna coverage rate is wider, it is contemplated that in practical application, antenna is placed on corner more, therefore its is complete in this case
Tropism is simultaneously unused, on the contrary because its omni-directional causes the antenna gain in effective coverage relatively low, so as to cause WLAN systems
The loss increase of system, efficiency reduce.
The content of the invention
The present invention proposes a kind of microstrip antenna of low section air dielectric, and its small volume, in light weight, loss is low, radiation is special
Property is good, and the beam angle of antenna in the horizontal direction is about 120 °.
In order to solve the above-mentioned technical problem, the present invention provides a kind of microstrip antenna of low section air dielectric, including metal
Plate antenna and feeding coaxial lines；The metal plate antennas includes upper strata metallic plate and lower metal plate, upper strata metallic plate and lower floor
The back edge of metallic plate is alignd and connected by metal linkage section；Respectively offered inwardly in the left and right edges of the upper strata metallic plate
Two transverse concave grooves of extension, wherein the two of homonymy transverse concave groove is parallel to each other, and two transverse concave grooves that left hand edge opens up
Two transverse concave grooves opened up with right hand edge are symmetrically distributed in upper strata metallic plate；Opened up in the upper strata metallic plate leading edge oriented
Two parallel longitudinal flutings of interior extension, longitudinal fluting is vertical with transverse concave groove, and two parallel longitudinal flutings symmetrically divide
Cloth is in upper strata metallic plate；The metal band formed between two parallel longitudinal flutings extends outward the front of upper strata metallic plate
Edge；The inner core of the feeding coaxial lines and the end of metal band are connected, and screen layer is connected with lower metal plate.
Further, the upper strata metallic plate and lower metal plate are rectangle, and the area of upper strata metallic plate is less than layer gold
Belong to plate；The opening of transverse concave groove is arranged in the short edge of upper strata metallic plate, and the opening of longitudinal fluting is arranged on upper strata metallic plate
Long edge on；Feeding coaxial lines are perpendicular to metal plate antennas.
Further, the metal plate antennas forms upper strata metallic plate and lower metal plate after being bent by metallic plate.
Compared with prior art, its remarkable advantage is the present invention, and present invention employs loading groove, loading to be grounded
Design so that antenna has that size is small, in light weight, the advantages of being easily integrated；Employ air dielectric and instead of traditional medium
Plate so that antenna, which has, is lost the advantages of low；The metallic plate for employing bending is processed so that antenna have it is simple in construction,
The advantages of easy to process, inexpensive；In addition, the present invention passes through substantial amounts of data-optimized experiment, it is ensured that antenna has good spoke
Penetrate characteristic.
Brief description of the drawings
Fig. 1 is a kind of structure top view of the microstrip antenna of low section air dielectric of the present invention.
Fig. 2 is a kind of structural side view of the microstrip antenna of low section air dielectric of the present invention.
Fig. 3 is a kind of top view size of the microstrip antenna of low section air dielectric of the present invention.
Fig. 4 is a kind of side view size of the microstrip antenna of low section air dielectric of the present invention.
Fig. 5 is a kind of microstrip antenna emulation S11 parametric plots of low section air dielectric of the present invention.
Fig. 6 is a kind of microstrip antenna emulation Smith circle diagrams of low section air dielectric of the present invention.
Fig. 7 is E face and H surface radiation direction of a kind of microstrip antenna of low section air dielectric of the present invention in 2.45GHz
Figure.
Fig. 8 is a kind of simulated gain curve of the microstrip antenna of low section air dielectric of the present invention.
Embodiment
It is readily appreciated that, according to technical scheme, in the case where not changing the connotation of the present invention, this area
Those skilled in the art can imagine a kind of numerous embodiments of the microstrip antenna of low section air dielectric of the present invention.Cause
This, detailed description below and accompanying drawing are only the exemplary illustrations to technical scheme, and are not to be construed as this hair
Bright whole is considered as limitation or restriction to technical solution of the present invention.
With reference to a kind of microstrip antenna of low section air dielectric of accompanying drawing, it is characterised in that including metal plate antennas 1 and feed
Coaxial line 4；The metal plate antennas 1 includes upper strata metallic plate 1-1 and lower metal plate 1-2, upper strata metallic plate 1-1 and lower floor's gold
Belong to plate 1-2 back edge alignment and by the 1-3 connections of metal linkage section, so as in upper strata metallic plate 1-1 and lower metal plate 1-2
Between form air layer, as air dielectric.
Two transverse concave grooves 2 to extend internally, wherein homonymy are respectively offered in the left and right edges of the upper strata metallic plate 1-1
Two transverse concave grooves 2 be parallel to each other, and two transverse concave grooves that two transverse concave grooves 2 opening up of left hand edge open up with right hand edge
2 are symmetrically distributed in upper strata metallic plate 1-1, i.e., symmetrical on axis；Offered inwardly in the upper strata metallic plate 1-1 leading edges
Two parallel longitudinal flutings 3 of extension, longitudinal fluting is vertical with transverse concave groove 2, and two parallel longitudinal flutings 3 symmetrically divide
Cloth is in upper strata metallic plate 1-1, i.e., symmetrical on axis；The metal band 5 formed between two parallel longitudinal flutings 3 is outside
Extend upper strata metallic plate 1-1 leading edge；Aforementioned grooves are as loading groove.
Feeding coaxial lines 4 connect perpendicular to metal plate antennas 1, the inner core of the feeding coaxial lines 4 with the end of metal band 5
Connect, screen layer is connected with lower metal plate 1-2.
Upper strata metallic plate 1-1 and lower metal the plate 1-2 is rectangle, and upper strata metallic plate 1-1 area is less than layer
Metallic plate 1-2；The opening of transverse concave groove 2 is arranged in upper strata metallic plate 1-1 short edge, and the opening of longitudinal fluting 3 is arranged on
On upper strata metallic plate 1-1 long edge；The metal plate antennas 1 forms upper strata metallic plate 1-1 and lower floor after being bent by metallic plate
Metallic plate 1-2.
The present invention combines second, third kind of method in the prior art and carries out Antenna Design, and has used sky on this basis
Gas medium improves the efficiency of antenna.Final antenna has small volume, in light weight, loss is low, radiation characteristic is good, stability
It is high, cost is low, easy of integration, the advantages that being adapted to produce in enormous quantities, be highly suitable for the modern wireless communication systems such as WLAN.Meanwhile
The shortcomings that for omni-directional antenna above-mentioned, the beam angle of the antenna that the present invention designs in the horizontal direction are about
120 ° so that the region for needing to cover in the area coverage and actual scene of antenna fully coincide, and improves the efficiency of wlan system.
By the selection of each parameters of operating part of microstrip antenna, such as length and width etc., target operation frequency range can be obtained, with
And optimal impedance bandwidth, reflectance factor and radiation characteristic.Each dimensional parameters of antenna shown in Fig. 3 and Fig. 4 are as follows：L1=
60mm, L2=35mm, L3=24.5mm, L4=0.9mm, L5=2mm, L6=12mm, L7=2mm, L8=1mm, L9=50mm,
L10=28.5mm, L11=1mm.By the business full-wave electromagnetic simulation software HFSS V13 of ANSYS companies according to above-mentioned size
The curve of artificial reflections coefficient S 11 for emulate acquisition is as shown in Figure 5.As seen from Figure 5, antenna is in working frequency range
Reflectance factor is relatively low at 2.45GHz, and reflected energy is less.Fig. 6 is a kind of Smith circles of microstrip antenna of low section air dielectric
Figure, as seen from the figure, antenna matches well when in 2.45GHz.Fig. 7 is that a kind of microstrip antenna of low section air dielectric exists
E-plane and H-plane pattern during 2.45GHz, it can be seen that the beam angle of antenna is about 120 °.Fig. 8 is a kind of low section air
The simulated gain curve of the microstrip antenna of medium, as seen from the figure, gain of the antenna in working frequency range is about 3dBi.From with
From the point of view of upper index, invention achieves a relatively good effect, it is highly suitable for the modern wireless communication systems such as WLAN.
Claims (3)
1. a kind of microstrip antenna of low section air dielectric, it is characterised in that including metal plate antennas (1) and feeding coaxial lines
(4)；The metal plate antennas (1) includes upper strata metallic plate (1-1) and lower metal plate (1-2), upper strata metallic plate (1-1) and under
The back edge alignment of layer metallic plate (1-2) is simultaneously connected by metal linkage section (1-3)；
Two transverse concave grooves (2) to extend internally, wherein homonymy are respectively offered in the left and right edges of the upper strata metallic plate (1-1)
Two transverse concave grooves (2) be parallel to each other, and two transverse directions that two transverse concave grooves (2) opening up of left hand edge open up with right hand edge
Groove (2) is symmetrically distributed in upper strata metallic plate (1-1)；
The two parallel longitudinal flutings (3) to extend internally, longitudinal fluting are offered in upper strata metallic plate (1-1) leading edge
It is vertical with transverse concave groove (2), and two parallel longitudinal flutings (3) are symmetrically distributed in upper strata metallic plate (1-1)；Two parallel
The metal band (5) formed between longitudinal fluting (3) extends outward upper strata metallic plate (1-1) leading edge；
The inner core of the feeding coaxial lines (4) is connected with the end of metal band (5), and screen layer connects with lower metal plate (1-2)
Connect.
2. the microstrip antenna of low section air dielectric as claimed in claim 1, it is characterised in that the upper strata metallic plate (1-1)
It is rectangle with lower metal plate (1-2), the area of upper strata metallic plate (1-1) is less than layer metallic plate (1-2)；Transverse concave groove
(2) opening is arranged in upper strata metallic plate (1-1) short edge, and the opening of longitudinal fluting (3) is arranged on upper strata metallic plate (1-
1) on long edge；Feeding coaxial lines (4) are perpendicular to metal plate antennas (1).
3. the microstrip antenna of low section air dielectric as claimed in claim 1, it is characterised in that the metal plate antennas (1) by
Upper strata metallic plate (1-1) and lower metal plate (1-2) are formed after metallic plate bending.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610692918.6A CN107768809A (en) | 2016-08-18 | 2016-08-18 | A kind of microstrip antenna of low section air dielectric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610692918.6A CN107768809A (en) | 2016-08-18 | 2016-08-18 | A kind of microstrip antenna of low section air dielectric |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107768809A true CN107768809A (en) | 2018-03-06 |
Family
ID=61262081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610692918.6A Pending CN107768809A (en) | 2016-08-18 | 2016-08-18 | A kind of microstrip antenna of low section air dielectric |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107768809A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112310631A (en) * | 2020-11-06 | 2021-02-02 | 南京理工大学 | Miniaturized microstrip antenna based on PCB |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101834342A (en) * | 2009-03-11 | 2010-09-15 | 许秋月 | Built-in multi-frequency planar inverted-F antenna (PIFA) of mobile phone |
| CN101901957A (en) * | 2010-06-30 | 2010-12-01 | 上海韩硕信息科技有限公司 | Micro radio frequency identification tag and micro strip patch antenna therein |
| CN203039100U (en) * | 2013-01-11 | 2013-07-03 | 成都信息工程学院 | Dual-channel dual-frequency-band MIMO microstrip antenna |
| CN104701628A (en) * | 2015-03-12 | 2015-06-10 | 西安电子科技大学 | Broadband circularly polarized micostrip antenna |
-
2016
- 2016-08-18 CN CN201610692918.6A patent/CN107768809A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101834342A (en) * | 2009-03-11 | 2010-09-15 | 许秋月 | Built-in multi-frequency planar inverted-F antenna (PIFA) of mobile phone |
| CN101901957A (en) * | 2010-06-30 | 2010-12-01 | 上海韩硕信息科技有限公司 | Micro radio frequency identification tag and micro strip patch antenna therein |
| CN203039100U (en) * | 2013-01-11 | 2013-07-03 | 成都信息工程学院 | Dual-channel dual-frequency-band MIMO microstrip antenna |
| CN104701628A (en) * | 2015-03-12 | 2015-06-10 | 西安电子科技大学 | Broadband circularly polarized micostrip antenna |
Non-Patent Citations (2)
| Title |
|---|
| SUZETTE M. AGUILAR，ETC: "《Multiband Miniaturized Patch Antennas for a》", 《IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION》 * |
| 俱新德: "《实用天线工程技术》", 30 April 2015 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112310631A (en) * | 2020-11-06 | 2021-02-02 | 南京理工大学 | Miniaturized microstrip antenna based on PCB |
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Application publication date: 20180306 |
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