CN109462030A - A kind of novel S-band broad frequency micro-band paster antenna - Google Patents
A kind of novel S-band broad frequency micro-band paster antenna Download PDFInfo
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- CN109462030A CN109462030A CN201811343311.2A CN201811343311A CN109462030A CN 109462030 A CN109462030 A CN 109462030A CN 201811343311 A CN201811343311 A CN 201811343311A CN 109462030 A CN109462030 A CN 109462030A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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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
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
Abstract
The present invention relates to a kind of novel S-band broad frequency micro-band paster antennas, which is characterized in that including top layer radiation metal patch layer, bottom layer ground sheetmetal patch layer and the dielectric layer between top layer radiation metal patch layer and bottom layer ground sheetmetal patch layer.The present invention is based on the application requirements of the wireless communication system of S-band, devise all channel antenna of a compact, the better mobility of paster antenna and penetrability, transformation is optimized to this antenna.By the annulus and rectangle that introduce suitable dimension in the circular patch structure on basis, so that the parameters such as the S parameter of antenna and gain meet real work requirement, and S-band is completely covered in the bandwidth of operation of antenna, while antenna has the characteristics that miniaturization, is easily integrated.
Description
Technical field
The present invention relates to a kind of novel broadband micro-strip paster antennas that can be applied to S-band.
Background technique
As the key component of modern wireless communication systems, the superiority and inferiority of antenna performance is related to the good of the performance of whole system
It is bad.With the development of wireless communication system, to radio frequency identification, Worldwide Interoperability for Microwave wireless Internet and wireless office can be suitable for simultaneously
The wide frequency antenna requirement that this several big mainstream Internet of Things communication technology standard is netted in domain is higher and higher.
Microstrip antenna is to enclose thin metal layer on one side as earth plate, another side photoetching on a thin-medium substrate
The metal patch of certain shapes is made in caustic solution, the antenna constituted using microstrip line or coaxial probe to patch.It has
There is integrated level is high, be suitble to produce in enormous quantities, section is low to be easy to many advantages, such as coplanar with aircraft, and on ground installation
In terms of the advantage for also having it, especially various military civil equipments of lower-wattage so that broad frequency micro-band paster antenna by
To the concern of numerous engineers.In particular with the fast development of mobile communication, the demand of mobile terminal device small
Make the application of microstrip antenna in status more outstanding.In wireless communication technique, the beamwidth of antenna is extremely important factor,
Because it determines the application range of antenna.
In recent years, with the fast development of wireless communication technique, people increasingly increase the demand of broadband connections, antenna
Develop the inexorable trend for having become communication system to the direction in broadband, high-gain.But traditional microstrip antenna work belt width,
The opposite bandwidth of operation of the low general typical microstrip antenna of gain is only in 2%-4% or so.Therefore, to wideband high-gain micro-strip day
Line research is of great significance.In the 1980s, it has been proposed that increasing the method that parasitic element improves microstrip antenna bandwidth；Separately
A kind of method is microband paste superposition, is being superimposed a microband paste with medium substrate in the upper surface of side feedback microband paste.It removes
It can also can also be obtained using large-sized gap, the superposition in aperture and multiple-layered patches antenna, spiral printed antenna except this
Higher bandwidth.
Summary of the invention
The object of the present invention is to provide a kind of wave band micro-strip paster antennas based on the coupling of symmetric double annulus, to work in S
In the wireless communication system of wave band.
In order to achieve the above object, the technical solution of the present invention is to provide a kind of novel S-band broad frequency micro-band patch days
Line, which is characterized in that including top layer radiation metal patch layer, bottom layer ground sheetmetal patch layer and be located at top layer radiation metal patch
Dielectric layer between lamella and bottom layer ground sheetmetal patch layer, in which:
Top layer radiation metal patch layer includes the rectangular patch that two symmetrical annulus and annulus prolong Shen, production method
Are as follows: increase an annulus in the outer ring of two symmetrical circular patches and form annulus patch, is then added below annulus patch
Two elongated vertical rectangular patches then connect the different lateral square of three sizes among the two rectangular patches
Shape wherein adds a small rectangle, the small rectangle of bottom and one respectively again above and below the rectangle of the top and bottom
Section feeder line is connected；
Bottom layer ground sheetmetal patch layer is rectangle, and has cut out two symmetrical rectangular apertures；
Signal by top layer radiation metal patch layer microstrip feed line feed-in, to make top layer radiation metal patch layer, medium
The structure of antenna is collectively formed in layer and bottom layer ground sheetmetal patch layer.
Preferably, the overall dimensions of the dielectric layer are 50mm × 50mm × 1.2mm.
Preferably, in top layer radiation metal patch layer, the radius of two symmetrical circular patches is 6.7mm, described
The increased circular ring shape with a thickness of 1.7mm, outer radii 8.7mm outside circular patch.
Preferably, in top layer radiation metal patch layer, the size of two elongated vertical rectangular patches is 3.5mm
×16.5mm。
Preferably, in top layer radiation metal patch layer, the size of the lateral rectangle from top to bottom be respectively 14mm ×
1mm、14mm×1mm、14mm×6mm。
Preferably, the increased small rectangle is used to increase the work of antenna among the lateral rectangular patch of the top
Bandwidth, having a size of 3mm × 2mm.
Preferably, the size of the bottom layer ground sheetmetal patch layer is 50mm × 11.8mm, pair that two of them are cut out
Rectangular aperture size be referred to as 3.8mm × 1.3mm.
Preferably, the size of the microstrip feed line is 0.98mm × 22.3mm.
Preferably, antenna is fed using co-planar waveguide mode by microstrip feed line, and the material of the dielectric layer is FR4_
Epoxy, relative dielectric constant 4.4, dielectric loss 0.02.
The RF signal power of radio transmitter output, is output to transmitting antenna by feeder line, by antenna with electromagnetic wave
It radiate.Load of the antenna as transmitter, it is the radiation of power obtained from transmitter to space, and therefore, antenna will be with
Feed line impedance is matched, the efficiency of matched degree direct influence power transmission.The microstrip feed line of this antenna is located at whole knot
The center of structure top layer, it is closely coupled with top-level metallic patch, when Antenna Operation, microstrip feed line feed-in of the signal by top layer, top layer
The all channel antenna for meeting application requirement is collectively formed with the metal radiation patch and medium substrate of bottom.
The present invention is based on the application requirements of the wireless communication system of S-band, devise all channel antenna of a compact,
Transformation is optimized to this antenna in the better mobility of paster antenna and penetrability.Pass through the circular patch structure on basis
The upper annulus and rectangle for introducing suitable dimension, so that the S parameter of antenna and gain etc. meet real work requirement, and antenna
S-band is completely covered in bandwidth of operation, while antenna has the characteristics that miniaturization, is easily integrated.
Since the structure of antenna is different on each parameter influence situation, antenna is placed in the sky for meeting theory calls by the present invention
In air cavity, each performance parameter of antenna is imitated using the full-wave simulation software HFSS based on finite element algorithm of 13 versions
True and Optimal improvements, and final antenna size has been determined.The result shows that the S11 parameter of the antenna realize frequency range from
1.4GHz-6.6GHz (130%), in this band limits, antenna gain is all in 2.5dB or more, and highest gain reaches
17dB.Meanwhile the frequency range of S11 parameter has completely included the frequency range of gain, covers entire S frequency range, to ensure that design
Micro-strip paster antenna structure can be applied to work in the wireless communication system of this frequency range.The present invention has given full play to micro-
Small size with paster antenna, low section and the features such as being easily integrated, the disadvantages of frequency band is relatively narrow, gain is lower is breached, extended
Micro-strip paster antenna applies the range in the frequency range.
Detailed description of the invention
Fig. 1 is the final structure schematic diagram of micro-strip paster antenna；
Fig. 2 is the return loss schematic diagram of antenna most general construction；
Fig. 3 is the gain schematic diagram of antenna final structure.
Specific embodiment
Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments are merely to illustrate the present invention
Rather than it limits the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, those skilled in the art
Member can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limited
Range.
The present invention is based on the bandwidth characteristics of symmetric double circular antenna, propose a kind of new structural broad frequency micro-band patch day
The general configuration of line, antenna is as shown in Figure 1.This antenna mainly contains three parts, respectively top layer radiation metal patch layer,
It is located in the middle dielectric layer and bottom layer ground sheetmetal patch layer.Three parts are closely coupled to become an antenna entirety.Wherein, it is situated between
Material selected by matter layer is FR4_epoxy, and the relative dielectric constant of the material is 4.4, dielectric loss 0.02.Dielectric layer
A length of L, width W, thickness H are only 1.2mm.The overall dimensions of dielectric layer are 50mm × 50mm × 1.2mm.
Top layer radiation metal patch layer includes the rectangular patch that two symmetrical annulus and annulus prolong Shen, production method
Are as follows: increase an annulus in the outer ring of two symmetrical circular patches and form annulus patch, is then added below annulus patch
Two elongated vertical rectangular patches then connect the different lateral square of three sizes among the two rectangular patches
Shape wherein adds a small rectangle, the small rectangle of bottom and one respectively again above and below the rectangle of the top and bottom
Section feeder line is connected.
The radius of circular patch is 6.7mm, the increased circular ring shape with a thickness of 1.7mm, outer ring outside circular patch
Radius is 8.7mm.The size of two elongated vertical rectangular patches is 3.5mm × 16.5mm.The size of lateral rectangle by
Top to bottm is respectively 14mm × 1mm, 14mm × 1mm, 14mm × 6mm.It is increased among the lateral rectangular patch of the top
Small rectangle is used to increase the bandwidth of operation of antenna, having a size of 3mm × 2mm.
Bottom layer ground sheetmetal patch layer is rectangle, and has cut out two symmetrical rectangular apertures.Bottom layer ground sheetmetal
The size of patch layer is 50mm × 11.8mm, and the symmetrical rectangular aperture size that two of them are cut out is 3.8mm × 1.3mm.
Signal by top layer radiation metal patch layer microstrip feed line feed-in, to make top layer radiation metal patch layer, medium
The structure of antenna is collectively formed in layer and bottom layer ground sheetmetal patch layer.The size of microstrip feed line is 0.98mm × 22.3mm.
The specific size parameter of antenna in the present embodiment is as shown in table 1.
| Antenna size parameter | Parameter value (mm) |
| L | 50 |
| W | 50 |
| H | 1.2 |
| L2 | 11.8 |
| L3 | 3.8 |
| W1 | 14 |
| W2 | 3 |
| W3 | 3.8 |
| W4 | 17.5 |
| a | 1.3 |
| b | 4.5 |
| R | 6.7 |
| R1 | 8.7 |
Table 1
Since antenna works in free space, in order to make to design Antenna Operation parameter closer to reality, in antenna
After the completion of structural model creation, when analyzing antenna performance parameters using HFSS, need to set the boundary condition of antenna to ideal
Conductor boundary, radiation border surface (i.e. air Cavity surface) are needed apart from radiator not less than λ/4, the bottom of antenna model medium substrate
Face needs to be set as ideal boundary, and the input port of antenna is set as coplanar wave port excitation, and microstrip feed line is made to be located at wave end
The center of mouth, sets rapid frequency-sweeping type for antenna, carries out analytical calculation to its performance in 1GHZ-7GHZ frequency range.
The present invention emulates the antenna structure using the HFSS full-wave simulation software based on finite element algorithm, antenna
S11 parameter and Gain parameters simulation result it is as shown in Figures 2 and 3.It can be seen from the figure that the S11 parameter of the antenna be less than-
The frequency range of 10dB is 1.4GHz-6.6GHz, and opposite bandwidth of operation is up to 130%, at the same time, the gain performance phase of antenna
Also very excellent for, Gain parameter in identical bandwidth range all in 2.5dB or more, at low frequency up to
11dB, high frequency treatment highest realize 17dB, meet operating condition in practical applications.The present invention has given full play to microband paste
The features such as small size of antenna, low section and is easily integrated, wide-band easy to accomplish, breaches the relatively narrow disadvantage of frequency range, makes micro-
Application range with antenna in this frequency range is extended.
In general, each characterisitic parameter of antenna is all the function of frequency, and antenna may have most in centre frequency
Good characteristic.Return loss S11 and gain G ain is two important parameters of antenna performance superiority and inferiority, wherein requiring S11 < -10dB
And Gain > 2.5dB could illustrate that antenna has actual application value in same band.The frequency range of this antenna is
1.4GHz-6.6GHz, opposite bandwidth of operation are 130%, and S-band is completely covered and gain is higher, in bluetooth and WiFi work frequency
Meet job requirement in segment limit, so it is particularly suitable for work in the modern wireless communication systems in this frequency range.
Claims (9)
1. a kind of novel S-band broad frequency micro-band paster antenna, which is characterized in that connect including top layer radiation metal patch layer, bottom
Floor metal patch layer and the dielectric layer between top layer radiation metal patch layer and bottom layer ground sheetmetal patch layer,
In:
Top layer radiation metal patch layer includes the rectangular patch that two symmetrical annulus and annulus prolong Shen, production method are as follows:
The outer ring of two symmetrical circular patches increases an annulus and forms annulus patch, is then added below annulus patch two thin
Long vertical rectangular patch then connects the different lateral rectangle of three sizes among the two rectangular patches, wherein
Add a small rectangle, the small rectangle of bottom and one section of feeder line phase above and below the rectangle of the top and bottom respectively again
Even；
Bottom layer ground sheetmetal patch layer is rectangle, and has cut out two symmetrical rectangular apertures；
Signal by top layer radiation metal patch layer microstrip feed line feed-in, thus make top layer radiation metal patch layer, dielectric layer and
The structure of antenna is collectively formed in bottom layer ground sheetmetal patch layer.
2. a kind of novel S-band broad frequency micro-band paster antenna as described in claim 1, which is characterized in that the dielectric layer
Overall dimensions are 50mm × 50mm × 1.2mm.
3. a kind of novel S-band broad frequency micro-band paster antenna as described in claim 1, which is characterized in that top layer radiation metal
In patch layer, the radius of two symmetrical circular patches is 6.7mm, the increased circular ring shape outside the circular patch
With a thickness of 1.7mm, outer radii 8.7mm.
4. a kind of novel S-band broad frequency micro-band paster antenna as described in claim 1, which is characterized in that top layer radiation metal
In patch layer, the size of two elongated vertical rectangular patches is 3.5mm × 16.5mm.
5. a kind of novel S-band broad frequency micro-band paster antenna as described in claim 1, which is characterized in that top layer radiation metal
In patch layer, the size of the lateral rectangle is respectively 14mm × 1mm, 14mm × 1mm, 14mm × 6mm from top to bottom.
6. a kind of novel S-band broad frequency micro-band paster antenna as described in claim 1, which is characterized in that the cross in the top
To rectangular patch among the increased small rectangle be used to increase the bandwidth of operation of antenna, having a size of 3mm × 2mm.
7. a kind of novel S-band broad frequency micro-band paster antenna as described in claim 1, which is characterized in that the bottom layer ground
The size of sheetmetal patch layer be 50mm × 11.8mm, the symmetrical rectangular aperture size that two of them are cut out be 3.8mm ×
1.3mm。
8. a kind of novel S-band broad frequency micro-band paster antenna as described in claim 1, which is characterized in that the microstrip feed line
Size be 0.98mm × 22.3mm.
9. a kind of novel S-band broad frequency micro-band paster antenna as described in claim 1, which is characterized in that antenna is using coplanar
Waveguide mode is fed by microstrip feed line, and the material of the dielectric layer is FR4_epoxy, and relative dielectric constant 4.4 is situated between
Electrical loss is 0.02.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811343311.2A CN109462030B (en) | 2018-11-13 | 2018-11-13 | Novel S-band broadband microstrip patch antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811343311.2A CN109462030B (en) | 2018-11-13 | 2018-11-13 | Novel S-band broadband microstrip patch antenna |
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| CN109462030A true CN109462030A (en) | 2019-03-12 |
| CN109462030B CN109462030B (en) | 2021-07-16 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110176669A (en) * | 2019-05-24 | 2019-08-27 | 中国计量大学上虞高等研究院有限公司 | Binary channels ultra-wideband wearable antenna |
| CN113410633A (en) * | 2021-06-18 | 2021-09-17 | 大连理工大学 | Dual-polarization ultra-wideband flexible microstrip patch antenna |
| CN113569426A (en) * | 2021-08-11 | 2021-10-29 | 西安西电光电缆有限责任公司 | Leaky cable simulation design and analysis method, system, equipment and storage medium |
| CN114094329A (en) * | 2021-11-22 | 2022-02-25 | 江苏科技大学 | Symmetrical top Peano fractal loaded microstrip patch antenna |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110176669A (en) * | 2019-05-24 | 2019-08-27 | 中国计量大学上虞高等研究院有限公司 | Binary channels ultra-wideband wearable antenna |
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| CN113569426A (en) * | 2021-08-11 | 2021-10-29 | 西安西电光电缆有限责任公司 | Leaky cable simulation design and analysis method, system, equipment and storage medium |
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| CN114094329A (en) * | 2021-11-22 | 2022-02-25 | 江苏科技大学 | Symmetrical top Peano fractal loaded microstrip patch antenna |
| CN114094329B (en) * | 2021-11-22 | 2023-10-03 | 江苏科技大学 | Symmetrical top Peano fractal loaded microstrip patch antenna |
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| CN109462030B (en) | 2021-07-16 |
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