CN107275767B - A kind of high-gain phased antenna array of side loaded media plate - Google Patents
A kind of high-gain phased antenna array of side loaded media plate Download PDFInfo
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- CN107275767B CN107275767B CN201710401420.4A CN201710401420A CN107275767B CN 107275767 B CN107275767 B CN 107275767B CN 201710401420 A CN201710401420 A CN 201710401420A CN 107275767 B CN107275767 B CN 107275767B
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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
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
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- Electromagnetism (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
A kind of high-gain phased antenna array of side loaded media plate, there is the medium substrate of mutiple antennas unit including laid out in parallel, the first medium plate and second medium plate that can be reflected electromagnetic wave and be transmitted also are arranged in parallel on the medium substrate of antenna element two sides, and the first medium plate and second medium plate is arranged about the battle array axial symmetry of the formed array of whole antenna elements.The present invention has by the way that the first medium plate and second medium plate that can reflect electromagnetic wave and transmit are arranged in parallel on the medium substrate of antenna element two sides, when reflection coefficient phase is close to 0, it is equivalent at perpendicular to antenna array array axis direction constituting one it is equidistant, not constant amplitude, with the aerial array of mutually feed, antenna element is had compressed in this way perpendicular to the half-power angle of antenna array array axis direction, effectively increases antenna gain.The present invention can reduce the quantity of antenna element, and processing cost is low, have stronger beam scanning capabilities.
Description
Technical field
The present invention relates to electromagnetic field microwave technologies, and in particular to a kind of high-gain phased antenna of side loaded media plate
Array.
Background technique
It is widely used in the fields such as communication and wireless sensing with high-gain and the antenna of wave beam tunable characteristic.Using big
Scale phased array antenna can be realized the high-gain of antenna and have beam scanning capabilities, and element antenna quantity is got in phased array
More, antenna gain is higher.But high-gain phased array is since antenna element is more, so that feed system is complicated, and higher cost.
Therefore, exploring the low adjustable antenna array design methodology of low cost, complexity is an important research direction.
Intel is proposed in Highly Directional Steerable Antennas article using di-lens
Solution, but the program there are antenna structure heaviness, the big problem of difficulty of processing.
Summary of the invention
It is an object of the invention to be directed to above-mentioned the problems of the prior art, a kind of height of side loaded media plate is provided
Gain phased antenna array, the phased antenna array have beam scanning capabilities, and easy to process, can reduce cost.
To achieve the goals above, the technical solution adopted by the present invention are as follows:
There is the medium substrate of mutiple antennas unit including laid out in parallel, is also set in parallel on the medium substrate of antenna element two sides
It is equipped with the first medium plate and second medium plate that can be reflected electromagnetic wave and be transmitted, and the first medium is flat
Plate and second medium plate are arranged about the battle array axial symmetry of the formed array of whole antenna elements.
Laid out in parallel has 4 antenna elements on the medium substrate, and antenna element uses size for 3.35mm*3.7mm
Rectangular patch antenna, and the distance between adjacent antenna units center is 6mm.
The centre frequency of the antenna element is 26GHz, and is fed using microstrip line.
The medium substrate is made of dielectric constant of 2.55 Neltec NY9225 material.
Copper is covered in the bottom surface of the medium substrate, and the size of medium substrate is 40mm*14mm*0.5mm.
First medium plate and second medium plate are made of the Rogers Ro4003 material of dielectric constant 3.55, the
The size of one media plate and second medium plate is 40mm*35mm*1.75mm, and the spacing of the two is 8mm.
The reflection coefficient of first medium plate and second medium plate is calculated by following formula:
In formula, θiFor incidence angle, θtFor refraction angle, β1For the aerial propagation constant of electromagnetic wave, β2It is being situated between for electromagnetic wave
Propagation constant in matter, d are media plate thickness, Γ1It is θ for incidence angleiPlane electromagnetic wave it is anti-into medium by air incidence
Penetrate coefficient, T1It is θ for incidence angleiTransmission coefficient of the plane electromagnetic wave by air incidence into medium, Γ2It is θ for incidence anglet
Reflection coefficient of the plane electromagnetic wave by medium incident into air, T2It is θ for incidence angletPlane electromagnetic wave by medium incident
Transmission coefficient into air；The thickness for adjusting two medium substrates, makes reflection coefficient phase tend to 0, and it is highest to obtain gain
Phased antenna array.
By increasing the height of first medium plate and second medium plate, the number for reflecting electromagnetic wave increases to mention
High-gain.
Gain is improved by increasing the quantity of laid out in parallel antenna element on medium substrate.
Compared with prior art, the present invention is with following the utility model has the advantages that passing through the medium substrate in antenna element two sides
On the first medium plate and second medium plate that can be reflected electromagnetic wave and be transmitted is arranged in parallel, when reflection coefficient phase
When position is close to 0, it is equivalent at perpendicular to antenna array array axis direction constituting one it is equidistant, not constant amplitude, with the day of mutually feed
Linear array has compressed antenna element perpendicular to the half-power angle of antenna array array axis direction in this way, effectively increases antenna increasing
Benefit.The present invention can reduce the quantity of antenna element, and processing cost is low, and phased-array technique is used in combination, and have stronger wave beam
Scan capability.
Detailed description of the invention
The structural schematic diagram of Fig. 1 inventive antenna unit；
Overall structure diagram Fig. 2 of the invention；
The principle of reflection schematic diagram of Fig. 3 present media plate；
The principle of reflection schematic diagram of Fig. 4 two-layered medium plate of the present invention；
Fig. 5 is without offside reflection antenna array gain simulation result curve graph；
Fig. 6 inventive antenna array gain simulation result curve graph；
In attached drawing: 1- antenna element；2- medium substrate；3- first medium plate；4- second medium plate.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings.
Referring to Fig. 1, antenna element 1 uses size for the rectangular patch antenna of 3.35mm*3.7mm, the center of antenna element 1
Frequency is 26GHz, and is fed using microstrip line that the line width of microstrip line is 0.38mm, and microstrip line enters antenna element 1
Depth is 0.80mm, and antenna element 1 is slotted in microstrip line entrance, and microstrip line two sides and groove edge spacing are 0.14mm.
Referring to fig. 2, laid out in parallel has 4 antenna elements 1 on present media substrate 2, constitutes the even linear array of 1*4, phase
The distance between adjacent 1 center of antenna element is 6mm.The Neltec NY9225 material that medium substrate 2 is 2.55 by dielectric constant
It is made, copper is covered in the bottom surface of medium substrate 2, and the size of medium substrate 2 is 40mm*14mm*0.5mm.
Can be reflected electromagnetic wave and be transmitted is also arranged in parallel on the medium substrate 2 of 1 two sides of antenna element
One media plate 3 and second medium plate 4, first medium plate 3 and second medium plate 4 are about 1 group of whole antenna elements
It is arranged at the battle array axial symmetry of array.Antenna element 1 is identical at a distance from two pieces of media plates.First medium plate 3 and second is situated between
Matter plate 4 is made of the Rogers Ro4003 material of dielectric constant 3.55, first medium plate 3 and second medium plate 4
Size is 40mm*35mm*1.75mm, and the spacing of two pieces of media plates is 8mm.
Referring to Fig. 3, the reflection coefficient of media plate is calculated by following formula:
In formula, θiFor incidence angle, θtFor refraction angle, β1For the aerial propagation constant of electromagnetic wave, β2It is being situated between for electromagnetic wave
Propagation constant in matter, d are media plate thickness, Γ1It is θ for incidence angleiPlane electromagnetic wave it is anti-into medium by air incidence
Penetrate coefficient, T1It is θ for incidence angleiTransmission coefficient of the plane electromagnetic wave by air incidence into medium, Γ2It is θ for incidence anglet
Reflection coefficient of the plane electromagnetic wave by medium incident into air, T2It is θ for incidence angletPlane electromagnetic wave by medium incident
Transmission coefficient into air；Reflectance magnitude is mainly by the dielectric constant of media plate and incident angle effect, reflection coefficient
Phase is mainly by media plate thickness effect.Array antenna is used the method in power distribution to two or more element antennas
Improve antenna gain.
Similarly, as shown in figure 4, when electromagnetic wave is oblique be mapped to plating media when, part of power is reflected, Partial Power
It is transmitted away through dielectric-slab, reflective portion equivalent can be considered as what the source that one is actuated to Γ T was launched.Therefore, parallel
In placing two identical dielectric-slabs in antenna array axis direction, when reflection coefficient phase is close to 0, can it is equivalent at perpendicular to
Battle array axis direction constitutes an aerial array equidistant, that constant amplitude, same phase are not fed, reduces half function perpendicular to battle array axis direction
Rate angle, improves antenna gain.In summary the height of analysis, media plate is higher, and the number that electromagnetic wave is reflected is got over
More, more perpendicular to the equivalent array element number of battle array axis direction, antenna gain is bigger.In addition, the thickness of media plate is direct
Reflection coefficient phase is affected, therefore media plate thickness should be adjusted, makes reflection coefficient phase close to 0, realizes the mesh for improving gain
's.
Fig. 5 is not have side loaded media plate, antenna element and aerial array gain curve same as the present invention, is increased
Maximum gain in beneficial curve is 12.3dB, and Fig. 6 is gain curve of the invention, maximum gain 17.8dB, this method raising
The gain of 5.5dB.Aerial array current feed phase is adjusted, aerial radiation beam direction changes, as can be seen from Figure 6, inventive antenna
With -30 °~30 ° of beam scanning capabilities.
Claims (9)
1. a kind of high-gain phased antenna array of side loaded media plate, it is characterised in that: have including laid out in parallel multiple
The medium substrate (2) of antenna element (1) perpendicular to medium substrate (2) and is parallel to whole antenna elements on medium substrate (2)
(1) orientation of the aerial array formed is additionally provided with the first medium plate that can be reflected electromagnetic wave and be transmitted
(3) and second medium plate (4), electromagnetic wave between two media plates by multiple reflections, and the first medium plate
(3) it is arranged with second medium plate (4) about the battle array axial symmetry of whole antenna elements (1) formed array, battle array axis is along whole
The orientation of the array of antenna element (1) composition, by the axis at antenna element (1) center.
2. the high-gain phased antenna array of side loaded media plate according to claim 1, it is characterised in that: described
Laid out in parallel has 4 antenna elements (1) on medium substrate (2), and antenna element (1) uses size for the rectangle of 3.35mm*3.7mm
Paster antenna, and the distance between adjacent antenna units (1) center is 6mm.
3. the high-gain phased antenna array of side loaded media plate according to claim 1 or claim 2, it is characterised in that: institute
The centre frequency for stating antenna element (1) is 26GHz, and is fed using microstrip line.
4. the high-gain phased antenna array of side loaded media plate according to claim 1, it is characterised in that: described
Medium substrate (2) is made of dielectric constant of 2.55 Neltec NY9225 material.
5. according to claim 1 or the high-gain phased antenna array of the 4 side loaded media plates, it is characterised in that: institute
Copper is covered in the bottom surface for stating medium substrate (2), and the size of medium substrate (2) is 40mm*14mm*0.5mm.
6. the high-gain phased antenna array of side loaded media plate according to claim 1, it is characterised in that: first is situated between
Matter plate (3) and second medium plate (4) are made of the Rogers Ro4003 material of dielectric constant 3.55, and first medium is flat
The size of plate (3) and second medium plate (4) is 40mm*35mm*1.75mm, and the spacing of the two is 8mm.
7. the high-gain phased antenna array of side loaded media plate according to claim 1, which is characterized in that first is situated between
The reflection coefficient of matter plate (3) and second medium plate (4) is calculated by following formula:
In formulaFor incidence angle,For refraction angle,For the aerial propagation constant of electromagnetic wave,In the medium for electromagnetic wave
Propagation constant,For media plate thickness,It is for incidence anglePlane electromagnetic wave by anti-in medium to being incident in air
Coefficient is penetrated,It is for incidence anglePlane electromagnetic wave by air to the transmission coefficient being incident in medium,For incidence angle
ForPlane electromagnetic wave by medium to the reflection coefficient being incident in air,It is for incidence anglePlane electromagnetic wave by
To the transmission coefficient being incident in air in medium；
The thickness for adjusting two medium substrates, makes reflection coefficient phase tend to 0, obtains the highest phased antenna array of gain.
8. the high-gain phased antenna array of side loaded media plate according to claim 1, it is characterised in that: pass through increasing
Add the height of first medium plate (3) and second medium plate (4), the number for reflecting electromagnetic wave increases to improve gain.
9. the high-gain phased antenna array of side loaded media plate according to claim 1, it is characterised in that: pass through increasing
The quantity of laid out in parallel antenna element (1) on medium substrate (2) is added to improve gain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710401420.4A CN107275767B (en) | 2017-05-31 | 2017-05-31 | A kind of high-gain phased antenna array of side loaded media plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710401420.4A CN107275767B (en) | 2017-05-31 | 2017-05-31 | A kind of high-gain phased antenna array of side loaded media plate |
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| Publication Number | Publication Date |
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| CN107275767A CN107275767A (en) | 2017-10-20 |
| CN107275767B true CN107275767B (en) | 2019-06-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US11695207B2 (en) * | 2018-04-12 | 2023-07-04 | Panasonic Intellectual Property Management Co., Ltd. | Vehicle antenna device with side wall lens |
| US10862211B2 (en) * | 2018-08-21 | 2020-12-08 | Htc Corporation | Integrated antenna structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6538603B1 (en) * | 2000-07-21 | 2003-03-25 | Paratek Microwave, Inc. | Phased array antennas incorporating voltage-tunable phase shifters |
| JP2004112652A (en) * | 2002-09-20 | 2004-04-08 | Alps Electric Co Ltd | Flat antenna |
| CN106505309A (en) * | 2016-11-02 | 2017-03-15 | 上海电机学院 | Present array antenna in a kind of gap loaded microstrip side |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI547015B (en) * | 2015-01-12 | 2016-08-21 | 均利科技股份有限公司 | Two Dimensional Antenna Array, One Dimensional Antenna Array and Single Antenna With Differential Feed Thereof |
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2017
- 2017-05-31 CN CN201710401420.4A patent/CN107275767B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6538603B1 (en) * | 2000-07-21 | 2003-03-25 | Paratek Microwave, Inc. | Phased array antennas incorporating voltage-tunable phase shifters |
| JP2004112652A (en) * | 2002-09-20 | 2004-04-08 | Alps Electric Co Ltd | Flat antenna |
| CN106505309A (en) * | 2016-11-02 | 2017-03-15 | 上海电机学院 | Present array antenna in a kind of gap loaded microstrip side |
Non-Patent Citations (1)
| Title |
|---|
| Main beam angle control microstrip antenna based on phase gradient metasurface;Lumei Li,Hongyu Shi,Wei Li and Jianxing Li;《2016 11th International Symposium on Antennas, Propagation and EM Theory (ISAPE)》;20161021;1-4 |
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