CN107275767A - 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
- Publication number
- CN107275767A CN107275767A CN201710401420.4A CN201710401420A CN107275767A CN 107275767 A CN107275767 A CN 107275767A CN 201710401420 A CN201710401420 A CN 201710401420A CN 107275767 A CN107275767 A CN 107275767A
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- flat board
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- gain
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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
-
- 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
-
- 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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- Physics & Mathematics (AREA)
- 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 multiple antenna elements including laid out in parallel, also it is arranged with the first medium flat board and second medium flat board that can be reflected electromagnetic wave and transmitted on the medium substrate of antenna element both sides in parallel, and described first medium flat board and second medium flat board are set on the battle array axial symmetry that whole antenna elements constitute array.First medium flat board and second medium flat board that present invention tool can be reflected electromagnetic wave and be transmitted by being be arranged in parallel on the medium substrate of antenna element both sides, when reflection coefficient phase is close to 0, it is equivalent into perpendicular to antenna array array direction of principal axis constituting one equidistantly, not constant amplitude, with mutually feed aerial array, half-power angle of the antenna element perpendicular to antenna array array direction of principal axis is so have compressed, antenna gain is effectively increased.The present invention can reduce the quantity of antenna element, and processing cost is low, with stronger beam scanning capabilities.
Description
Technical field
The present invention relates to electromagnetic field microwave technology, and in particular to a kind of high-gain phased antenna of side loaded media plate
Array.
Background technology
It is widely used with high-gain and the antenna of wave beam tunable characteristic in the field such as communication and wireless sensing.Using big
Scale phased array antenna can realize the high-gain of antenna and there is element antenna quantity in beam scanning capabilities, phased array to get over
Many, antenna gain is higher.But high-gain phased array is more due to antenna element so that feed system is complicated, and cost is higher.
Therefore, it is an important research direction to explore the low adjustable antenna array design methodology of low cost, complexity.
Intel is proposed in Highly Directional Steerable Antennas articles and is used di-lens
Solution, but the program has antenna structure heavy, the problem of difficulty of processing is big.
The content of the invention
It is an object of the invention to for above-mentioned the problems of the prior art, there is provided a kind of height of side loaded media plate
Gain phased antenna array, the phased antenna array has beam scanning capabilities, and easy to process, can reduce cost.
To achieve these goals, the technical solution adopted by the present invention is：
There is also parallel on the medium substrate of multiple antenna elements, the medium substrate of antenna element both sides set including laid out in parallel
The first medium flat board and second medium flat board that can be reflected electromagnetic wave and transmitted are equipped with, and described first medium is put down
Plate and second medium flat board are set on the battle array axial symmetry that whole antenna elements constitute array.
Laid out in parallel has 4 antenna elements on described 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.
Described medium substrate is made up of dielectric constant of 2.55 Neltec NY9225 materials.
Copper is covered in the bottom surface of the medium substrate, and the size of medium substrate is 40mm*14mm*0.5mm.
First medium flat board and second medium flat board are made by the Rogers Ro4003 materials of dielectric constant 3.55, the
The size of one media plate and second medium flat board is 40mm*35mm*1.75mm, and the spacing of the two is 8mm.
The reflectance factor of first medium flat board and second medium flat board 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 is medium 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
Reflectance factor 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 of two medium substrates is adjusted, reflection coefficient phase is tended to 0, obtains gain highest
Phased antenna array.
By increasing the height of first medium flat board and second medium flat board, make the increased frequency that electromagnetic wave is reflected to carry
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 has following beneficial effect：Pass through the medium substrate in antenna element both sides
On be arranged in parallel the first medium flat board and second medium flat board that electromagnetic wave can be reflected and transmitted, when reflectance factor phase
Position close to 0 when, it is equivalent into perpendicular to antenna array array direction of principal axis constituting one equidistantly, not constant amplitude, with mutually feed day
Linear array, so have compressed half-power angle of the antenna element perpendicular to antenna array array direction of principal axis, effectively increase antenna increasing
Benefit.The present invention can reduce the quantity of antenna element, and processing cost is low, phased-array technique be used in combination, with stronger wave beam
Scan capability.
Brief description of the drawings
The structural representation of Fig. 1 inventive antenna units；
The overall structure diagram of Fig. 2 present invention；
The principle of reflection schematic diagram of Fig. 3 present media flat boards；
The principle of reflection schematic diagram of Fig. 4 two-layered medium flat boards of the present invention；
Fig. 5 is without offside reflection antenna array gain simulation result curve map；
Fig. 6 inventive antenna array gain simulation result curve maps；
In accompanying drawing：1- antenna elements；2- medium substrates；3- first medium flat boards；4- second medium flat boards.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Referring to Fig. 1, antenna element 1 uses size for 3.35mm*3.7mm rectangular patch antenna, the center of antenna element 1
Frequency is 26GHz, and is fed using microstrip line, and 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 at microstrip line import, and microstrip line both sides are 0.14mm with groove edge spacing.
Referring to Fig. 2, laid out in parallel has 4 antenna elements 1 on present media substrate 2, constitutes 1*4 even linear array, phase
The distance between adjacent center of antenna element 1 is 6mm.Medium substrate 2 by dielectric constant be 2.55 Neltec NY9225 materials
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.
Also it is arranged with for being reflected electromagnetic wave and being transmitted on the medium substrate 2 of the both sides of antenna element 1 in parallel
One media plate 3 and second medium flat board 4, first medium flat board 3 and second medium flat board 4 are on whole 1 group of antenna element
Battle array axial symmetry into array is set.Antenna element 1 is identical with the distance of two pieces of media plates.First medium flat board 3 and second is situated between
Matter flat board 4 is made by the Rogers Ro4003 materials of dielectric constant 3.55, first medium flat board 3 and second medium flat board 4
Size is 40mm*35mm*1.75mm, and the spacing of two pieces of media plates is 8mm.
Referring to Fig. 3, the reflectance factor 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 is medium 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
Reflectance factor 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 and incident angle effect of media plate, reflectance factor
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, which part power is reflected, Partial Power
Transmitted away through dielectric-slab, reflecting part can be considered as what a source for being actuated to Γ T was launched with equivalent.Therefore, parallel
In on antenna array direction of principal axis place two identical dielectric-slabs, when reflection coefficient phase is close to 0, can with it is equivalent into perpendicular to
Battle array direction of principal axis constitutes an aerial array equidistant, that constant amplitude, same phase are not fed, reduces half work(perpendicular to battle array direction of principal axis
Rate angle, improves antenna gain.In summary analysis, the height of media plate is higher, and the number of times that electromagnetic wave is reflected is got over
Many, the equivalent array element number perpendicular to battle array direction of principal axis is more, and antenna gain is bigger.In addition, the thickness of media plate is direct
Reflection coefficient phase is have impact on, therefore medium plate thickness should be adjusted, makes reflection coefficient phase close to 0, realizes the mesh for improving gain
's.
Fig. 5 increases not have side loaded media plate, antenna element and aerial array and identical gain curve of the present invention
Maximum gain in beneficial curve is 12.3dB, and Fig. 6 is the gain curve of the present invention, and maximum gain is 17.8dB, and this method is improved
5.5dB gain.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 multiple including laid out in parallel
Also being arranged with parallel on the medium substrate (2) of antenna element (1), the medium substrate (2) of antenna element (1) both sides can be to electromagnetism
First medium flat board (3) and second medium flat board (4) that ripple is reflected and transmitted, and described first medium flat board (3) and
Second medium flat board (4) is set on the battle array axial symmetry that whole antenna elements (1) constitute array.
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 3.35mm*3.7mm rectangle
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 up of dielectric constant of 2.55 Neltec NY9225 materials.
5. the high-gain phased antenna array of side loaded media plate according to claim 1 or 4, 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 flat board (3) and second medium flat board (4) are made by the Rogers Ro4003 materials of dielectric constant 3.55, and first medium is put down
The size of plate (3) and second medium flat board (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, it is characterised in that first is situated between
The reflectance factor of matter flat board (3) and second medium flat board (4) is calculated by following formula：
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In formula, θiFor incidence angle, θtFor refraction angle, β1For the aerial propagation constant of electromagnetic wave, β2For electromagnetic wave in media as well
Propagation constant, d be medium plate thickness, Γ1It is θ for incidence angleiReflection system of the plane electromagnetic wave by air incidence into medium
Number, T1It is θ for incidence angleiTransmission coefficient of the plane electromagnetic wave by air incidence into medium, Γ2It is θ for incidence angletIt is flat
Reflectance factor of the face electromagnetic wave by medium incident into air, T2It is θ for incidence angletPlane electromagnetic wave by medium incident to sky
Transmission coefficient in gas；The thickness of two medium substrates is adjusted, reflection coefficient phase is tended to 0, obtains gain highest phased
Aerial array.
8. the high-gain phased antenna array of side loaded media plate according to claim 1, it is characterised in that：By increasing
Plus the height of first medium flat board (3) and second medium flat board (4), make the increased frequency that electromagnetic wave is reflected to improve gain.
9. the high-gain phased antenna array of side loaded media plate according to claim 1, it is characterised in that：By increasing
Plus the quantity of laid out in parallel antenna element (1) improves gain on medium substrate (2).
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 |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
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| CN107275767A true CN107275767A (en) | 2017-10-20 |
| CN107275767B CN107275767B (en) | 2019-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710401420.4A Active 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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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110854505A (en) * | 2018-08-21 | 2020-02-28 | 宏达国际电子股份有限公司 | Integrated antenna structure |
| CN111989822A (en) * | 2018-04-12 | 2020-11-24 | 松下知识产权经营株式会社 | Antenna device |
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| 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 |
| US20160204517A1 (en) * | 2015-01-12 | 2016-07-14 | U&U Engineering Inc. | Two-dimensional antenna array, one-dimensional antenna array and single differential feeding 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 |
-
2017
- 2017-05-31 CN CN201710401420.4A patent/CN107275767B/en active Active
Patent Citations (4)
| 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 |
| US20160204517A1 (en) * | 2015-01-12 | 2016-07-14 | U&U Engineering Inc. | Two-dimensional antenna array, one-dimensional antenna array and single differential feeding 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 |
|---|
| LUMEI LI,HONGYU SHI,WEI LI AND JIANXING LI: "Main beam angle control microstrip antenna based on phase gradient metasurface", 《2016 11TH INTERNATIONAL SYMPOSIUM ON ANTENNAS, PROPAGATION AND EM THEORY (ISAPE)》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111989822A (en) * | 2018-04-12 | 2020-11-24 | 松下知识产权经营株式会社 | Antenna device |
| CN111989822B (en) * | 2018-04-12 | 2023-01-13 | 松下知识产权经营株式会社 | Antenna device |
| CN110854505A (en) * | 2018-08-21 | 2020-02-28 | 宏达国际电子股份有限公司 | Integrated antenna structure |
| US10862211B2 (en) | 2018-08-21 | 2020-12-08 | Htc Corporation | Integrated antenna structure |
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| CN107275767B (en) | 2019-06-11 |
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