CN208674364U - A kind of punching microstrip antenna - Google Patents
A kind of punching microstrip antenna Download PDFInfo
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- CN208674364U CN208674364U CN201821328611.9U CN201821328611U CN208674364U CN 208674364 U CN208674364 U CN 208674364U CN 201821328611 U CN201821328611 U CN 201821328611U CN 208674364 U CN208674364 U CN 208674364U
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- hole
- ground plane
- circular
- feed point
- coaxial feed
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Abstract
The utility model discloses a kind of punching microstrip antennas, including metal radiation piece, circular through hole, dielectric insulation layer and ground plane, dielectric insulation layer it is upper, metal radiation piece and ground plane are close in lower two sides respectively and three's central point is overlapped, circular through hole punches metal radiation piece, dielectric insulation layer and ground plane, circular through hole is provided with several and is arranged in array, form array through-hole unit, an independent circular hole is provided with as coaxial feed point in front of array through-hole unit, coaxial inner conductor connects across dielectric insulation layer and is motivated in metal radiation on piece, coaxial feed point is peripheral and is provided with a coaxial circle in ground plane position, form ground plane circle at coaxial feed point.Punching microstrip antenna provided by the utility model, design are 2.94GH in centre frequency, and return loss when return loss is not than punching about improves 14.3%, and standing wave frequency range and value also correspondingly increase, and gain has the performance of optimization, and simulated effect is obviously improved.
Description
Technical field
The utility model relates to antenna technical fields, and in particular to a kind of punching microstrip antenna.
Background technique
Microstrip antenna is by one piece of thickness much smaller than the medium substrate of operation wavelength, the metal radiation piece of substrate side attachment
The earth plate composition of thin metal layer is all coated with substrate another side.What medium substrate generallyd use is insulating materials, other two
Part is all made of metal material.In the design, according to different environment, working frequency and application technology, radiation fin can basis
Different requirements is designed to different shapes.
Microstrip antenna has many advantages, such as light weight, small in size and easily fabricated, nowadays, has been applied to personal wireless communication
In.But certain effect is not achieved in antenna return loss, standing wave and the gain that the size design of simple radiation fin comes out, so that micro-
Development with antenna is restricted.
Utility model content
In order to solve the problems existing in the prior art, the utility model provides a kind of punching microstrip antenna, transmitted radiation
Lamella, insulating medium layer and ground plane, return loss, standing wave and gain can reach good effect.
To achieve the above object, the technical solution adopted in the utility model are as follows:
Ground plane circle, circle at a kind of punching microstrip antenna, including metal radiation piece, coaxial feed point, coaxial feed point
It is close to metal radiation piece and ground plane and three respectively in the upper and lower two sides of through-hole, dielectric insulation layer and ground plane, dielectric insulation layer
Person's central point is overlapped, and metal radiation piece is located above dielectric insulation layer, and structure is rectangle, and dielectric insulation layer is tightly attached to metal radiation
Among piece and ground plane, creation shape is rectangular parallelepiped structure, and selections isolation material is corresponding material, ground plane in lowest level,
Modeled shape is to punch metal radiation piece, dielectric insulation layer and ground connection with dielectric insulation layer rectangle of a size, circular through hole
Layer, circular through hole are provided with several and are arranged in array, and form array through-hole unit, are provided with independent one in front of array through-hole unit
A circular hole is as coaxial feed point, and for coaxial socket to be mounted on ground plane, coaxial inner conductor passes through dielectric insulation layer
It connects and is motivated in metal radiation on piece, obtain good matching, the coaxial feed point is peripheral and is provided in ground plane position
One coaxial circle forms ground plane circle at coaxial feed point.
Further, the number of the circular through hole is 21, wherein the radius of each circular through hole and its deep equality,
All circular through holes are arranged in 3 × 7 matrix arrays, the i.e. round circular hole of 3 row's parallel arrangements, and the number of every row's circular through hole is 7
It is a, it does not need to fill any substance in each circular through hole and height is equal, air can be regarded as.
Further, the metal radiation piece and ground plane are that metal is made, generally selection copper material, dielectric insulation layer
Select FR4 epoxy resin plate, relative dielectric constant 4.4.
Further, the radius at the coaxial feed point at ground plane circle is greater than the pore radius at coaxial feed point, together
The radius of pore radius and circular through hole at axis feeding point is not identical.
Further, 50 Ω coaxial feedings are used at the coaxial feed point.
Further, a length of 40.43mm of the metal radiation piece, width 23.43mm, coaxial feed point is before from central point
At square 5.8mm, the pore radius at coaxial feed point is 0.6mm, a height of 1.6mm, the radius at coaxial feed point at ground plane circle
For 1.5mm, the radius of circular through hole is 1mm, a height of 1.6mm, and the center spacing of two neighboring circular through hole is 4mm, and medium is exhausted
The long 60.86mm of edge layer, width 46.86mm, high 1.6mm, the long 60.86mm of ground plane, width 46.86mm.
Compared with prior art, the utility model has the following beneficial effects:
The utility model discloses a kind of punching microstrip antennas, including metal radiation piece, coaxial feed point, coaxial feed point
Metal spoke is close in place's ground plane circle, circular through hole, dielectric insulation layer and ground plane, the upper and lower two sides of dielectric insulation layer respectively
It penetrates piece and ground plane and three's central point is overlapped, circular through hole punches metal radiation piece, dielectric insulation layer and ground plane, and circle is logical
Hole is provided with several and is arranged in array, and forms array through-hole unit, and an independent circular hole is provided in front of array through-hole unit and is made
For coaxial feed point, for coaxial socket to be mounted on ground plane, coaxial inner conductor passes through dielectric insulation layer and connects in metal
The enterprising row energization of radiation fin obtains good matching, and the coaxial feed point is peripheral and is provided with one coaxially in ground plane position
Circle, formed coaxial feed point at ground plane circle.Punching microstrip antenna provided by the utility model, design are in centre frequency
2.94GH is designed and is optimized by HFSS software, while adding the performance that scan frequency 2-4GHz frequency range observes this antenna,
Return loss of the antenna in frequency range, voltage standing wave(VSW) when gain are analyzed, is designed by punching, when return loss is not than punching
Return loss about improves 14.3%, and standing wave frequency range and value also correspondingly increase, and gain has the performance of optimization, and simulated effect is bright
It is aobvious to be promoted.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the floor map of the utility model；
Fig. 3 is the return loss analogous diagram of the utility model；
Fig. 4 is the standing-wave ratio analogous diagram of the utility model；
Fig. 5 is the E planar gain direction analogous diagram of the utility model；
Fig. 6 is the three-dimensional E planar gain direction analogous diagram of the utility model；
Wherein, 1- metal radiation piece；2- coaxial feed point；Ground plane circle at 3- coaxial feed point；4- circular through hole；5- is situated between
Matter insulating layer；6- ground plane.
Specific embodiment
The utility model is further described combined with specific embodiments below.
As shown in figures 1 to 6, at a kind of punching microstrip antenna, including metal radiation piece 1, coaxial feed point 2, coaxial feed point
Ground plane circle 3, circular through hole 4, dielectric insulation layer 5 and ground plane 6, the upper and lower two sides of the dielectric insulation layer 5 are close to respectively
Metal radiation piece 1 and ground plane 6 and three's central point are overlapped, and circular through hole 4 is punched metal radiation piece 1, dielectric insulation layer 5 and connect
Stratum 6, circular through hole 4 are provided with several and are arranged in array, and form array through-hole unit, are provided with list in front of array through-hole unit
An only circular hole needs to squeeze into a through-hole at coaxial feed point 2, for coaxial socket to be mounted on as coaxial feed point 2
On ground plane 6, coaxial inner conductor passes through dielectric insulation layer 5 and connects dedicated in the enterprising row energization of metal radiation piece 1, can obtain good
Good matching when facilitating test and the connection of connector, in order to which connector is not with ground connection face contact, uses at coaxial feed point 2
50 Ω coaxial feedings, coaxial feed point 2 is peripheral and is provided with a coaxial circle in 6 position of ground plane, forms coaxial feed point
Locate ground plane circle 3.
Metal radiation piece 1 is located at 5 top of dielectric insulation layer, is in rectangular parallelepiped structure, dielectric insulation layer 5 is in metal radiation piece 1
Among ground plane 6, creation shape is rectangular parallelepiped structure, and ground plane 6 is the cuboid knot with 5 same size of dielectric insulation layer
Structure.
The number of circular through hole 4 is 21, the radius of each circular through hole 4 and its deep equality, in each circular through hole 4
It is not filled with any substance and height is equal, all circular through holes 4 are arranged in 3 × 7 matrix arrays.
Radius at coaxial feed point at ground plane circle 3 is greater than the pore radius at coaxial feed point 2, at coaxial feed point 2
Pore radius it is not identical as the radius of circular through hole 4.
Metal radiation piece 1 and ground plane 6 are all made of metal and are made, and generally selection copper material, dielectric insulation layer 5 select FR4
Epoxy resin plate, relative dielectric constant 4.4.
Working principle of the utility model is:
Microstrip antenna is punched, metal radiation piece is coated on one side in one piece of dielectric insulation layer much smaller than operation wavelength, is situated between
The opposite another side of matter insulating layer is all coated with metal layer as ground plane, punches on the basis of microstrip antenna is rectangular microstrip antenna
Punching designs, and in the case where only considering principal-mode excitation, is motivated by the way of coaxial feed, input impedance is set as 50
Ω, to obtain good matching, obtained effect is rationalized very much, and return loss, voltage standing wave ratio, gain have excellent
Effect.
Embodiment 1
As shown in figures 1 to 6, at a kind of punching microstrip antenna, including metal radiation piece 1, coaxial feed point 2, coaxial feed point
Ground plane circle 3, circular through hole 4, dielectric insulation layer 5 and ground plane 6, in dielectric insulation layer 5, metal radiation piece 1 and ground plane 6
Heart point is overlapped, and the metal radiation piece 1 with 21 circular through holes 4 is tightly attached to 5 upside of dielectric insulation layer, and ground plane 6 is close to Jie
The downside of matter insulating layer 5, this simulation model are converted to pcb board and carry out Precision Machining production, then weld sub-miniature A connector and can be surveyed
Examination, circular through hole 4 punch metal radiation piece 1, dielectric insulation layer 5 and ground plane 6, and circular through hole 4 is provided with several and in array
Arrangement forms array through-hole unit, is provided with an independent circular hole as coaxial feed point 2, coaxial feed in front of array through-hole unit
Need to squeeze into a through-hole at electricity point 2, for coaxial socket to be mounted on ground plane 6, it is exhausted that coaxial inner conductor passes through medium
Edge layer 5 connects dedicated in the enterprising row energization of metal radiation piece 1, can obtain good matching, when facilitating test and the company of connector
Connect, in order to which connector is not with ground connection face contact, use 50 Ω coaxial feedings at coaxial feed point 2,2 periphery of coaxial feed point and
It is provided with a coaxial circle in 6 position of ground plane, forms ground plane circle 3 at coaxial feed point.
Metal radiation piece 1 is 40.43mm long, width 23.43mm, and coaxial feed point 2 is in front of from central point at 5.8mm, coaxially
Pore radius at feeding point 2 is 0.6mm, a height of 1.6mm, and the radius at coaxial feed point at ground plane circle 3 is 1.5mm, round
The radius of through-hole 4 is 1mm, a height of 1.6mm, and the center spacing of two neighboring circular through hole 4 is 4mm, and dielectric insulation layer 5 is long
60.86mm, width 46.86mm, high 1.6mm, ground plane 6 is 60.86mm long, width 46.86mm.
Fig. 3 is return loss analogous diagram, and return loss value unit is expressed in decibels in Fig. 3, and range arrives minus infinity 0,
Value after taking absolute value is the bigger the better, and total reflection is indicated when being 0, and exact matching, return loss bigger explanation are indicated when infinitely great
Matching is better.
Fig. 4 is standing-wave ratio analogous diagram, and the standing wave ratio in Fig. 4 indicates complete at 1 to positive infinity, 1 without unit, range
Matching, when infinitely great, expression loses matching completely, is under normal circumstances best less than 2.
Fig. 5 is E planar gain direction analogous diagram, for far-field region, for directional aerial, and in its maximum beam position,
That is the face that gain direction, electric field and beam position determine is the face E, and the gain that this plane computations goes out is known as E planar gain.
Fig. 6 is three-dimensional E planar gain direction analogous diagram, and the more big then standing wave of return loss is lower (better) in the design,
Antenna gain refers to: under conditions of input power is equal, actual antennas and ideal radiating element are in space same point place
The ratio between power density of signal of generation, for quantitatively describing the degree of a day bundle of lines input power concentrated radiation.
Design is 2.94GH in centre frequency, and return loss when return loss is not than punching about improves 14.3%,
Standing wave frequency range and value also correspondingly increase, and gain has the performance of optimization, and simulated effect is obviously improved.
Above-described embodiment does not limit the utility model, all institutes by the way of equivalent substitution or equivalent transformation in any form
The technical solution of acquisition, all falls within the protection scope of the utility model.
Claims (7)
1. a kind of punching microstrip antenna, which is characterized in that including metal radiation piece (1), coaxial feed point (2), coaxial feed point
Place's ground plane circle (3), circular through hole (4), dielectric insulation layer (5) and ground plane (6), upper and lower the two of the dielectric insulation layer (5)
Metal radiation piece (1) and ground plane (6) are close in side respectively and three's central point is overlapped, and circular through hole (4) punches metal radiation
Piece (1), dielectric insulation layer (5) and ground plane (6), circular through hole (4) are provided with several and are arranged in array, and form array through-hole
Unit, array through-hole unit front are provided with an independent circular hole as coaxial feed point (2), connect for coaxial socket to be mounted on
On stratum (6), coaxial inner conductor passes through dielectric insulation layer (5) and connects in metal radiation piece (1) enterprising row energization, obtains good
Matching, the coaxial feed point (2) is peripheral and is provided with a coaxial circle in ground plane (6) position, is formed at coaxial feed point
Ground plane circle (3).
2. a kind of punching microstrip antenna according to claim 1, which is characterized in that the metal radiation piece (1), which is located at, to be situated between
It is in rectangular parallelepiped structure, dielectric insulation layer (5) is intermediate in metal radiation piece (1) and ground plane (6), creation above matter insulating layer (5)
Shape is rectangular parallelepiped structure, and ground plane (6) is the rectangular parallelepiped structure with dielectric insulation layer (5) same size.
3. a kind of punching microstrip antenna according to claim 1, which is characterized in that the number of the circular through hole (4) is
21, the radius of each circular through hole (4) and its deep equality are not filled with any substance and height in each circular through hole (4)
Equal, all circular through holes (4) are arranged in 3 × 7 matrix arrays.
4. a kind of punching microstrip antenna according to claim 1, which is characterized in that ground plane circle at the coaxial feed point
(3) radius at is greater than the pore radius at coaxial feed point (2), the pore radius and circular through hole (4) at coaxial feed point (2)
Radius is not identical.
5. a kind of punching microstrip antenna according to claim 1, which is characterized in that used at the coaxial feed point (2)
50 Ω coaxial feedings.
6. a kind of punching microstrip antenna according to claim 1, which is characterized in that the metal radiation piece (1) and ground connection
Layer (6) is all made of metal and is made, and dielectric insulation layer (5) selects FR4 epoxy resin plate, relative dielectric constant 4.4.
7. a kind of punching microstrip antenna according to claim 1, which is characterized in that the metal radiation piece (1) is long
40.43mm, width 23.43mm, pore radius of the coaxial feed point (2) in front of from central point at 5.8mm, at coaxial feed point (2)
For 0.6mm, a height of 1.6mm, the radius at coaxial feed point at ground plane circle (3) is 1.5mm, and the radius of circular through hole (4) is
1mm, a height of 1.6mm, the center spacing of two neighboring circular through hole (4) are 4mm, the long 60.86mm of dielectric insulation layer (5), width
46.86mm, high 1.6mm, the long 60.86mm of ground plane (6), width 46.86mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821328611.9U CN208674364U (en) | 2018-08-17 | 2018-08-17 | A kind of punching microstrip antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821328611.9U CN208674364U (en) | 2018-08-17 | 2018-08-17 | A kind of punching microstrip antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208674364U true CN208674364U (en) | 2019-03-29 |
Family
ID=65837214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821328611.9U Expired - Fee Related CN208674364U (en) | 2018-08-17 | 2018-08-17 | A kind of punching microstrip antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208674364U (en) |
-
2018
- 2018-08-17 CN CN201821328611.9U patent/CN208674364U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190329 Termination date: 20190817 |
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| CF01 | Termination of patent right due to non-payment of annual fee |