CN114024130A - A Low Profile Broadband Solar Cell Antenna - Google Patents
A Low Profile Broadband Solar Cell Antenna Download PDFInfo
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- CN114024130A CN114024130A CN202111201454.1A CN202111201454A CN114024130A CN 114024130 A CN114024130 A CN 114024130A CN 202111201454 A CN202111201454 A CN 202111201454A CN 114024130 A CN114024130 A CN 114024130A
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- cell antenna
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- 230000005855 radiation Effects 0.000 claims abstract description 23
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 238000004891 communication Methods 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002803 fossil fuel Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005388 cross polarization Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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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
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
- H02S40/34—Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
A low profile broadband solar cell antenna, comprising: the antenna comprises an upper dielectric plate (1) and a lower dielectric plate (4) which are parallel to each other, a radiation structure, a feed structure, a director structure and a filter structure; the radiation structure is positioned on the upper surface of the upper-layer dielectric slab (1) and is connected with the filter structure through a bus bar (3) and a direct current feeder (9), and the radiation structure comprises a plurality of parallel solar cell strings (2); the feed structure comprises a slotted floor (7) positioned on the upper surface of the lower-layer dielectric slab (4) and a microstrip line (6) positioned on the lower surface of the lower-layer dielectric slab, the director structure comprises two directors (8) which are vertically positioned between the upper-layer dielectric slab (1) and the lower-layer dielectric slab (4), the filter structure comprises a filter (5), and the filter (5) is positioned on the lower surface of the lower-layer dielectric slab (4). The invention ensures that the antenna has stable radiation performance.
Description
Technical Field
The invention belongs to the technical field of solar cell antennas, and particularly relates to a low-profile broadband solar cell antenna.
Background
At present, the development of modern wireless communication technology is promoted by continuous innovation of scientific technology, the demand of a communication system on an antenna is steadily increased, and the energy consumed by the system is increased more and more. The existing wireless communication system mainly depends on fossil fuel for power supply, the gas discharged by burning of the fossil fuel can cause greenhouse effect, the burning of residual substances causes frequent occurrence of haze weather, and solar energy is one of effective methods for realizing green communication as the most promising renewable energy.
Although the existing antenna design integrating the solar cell has the problems of high antenna section height, narrow bandwidth, small front-back ratio of the antenna and the like, the antenna cannot simultaneously realize green communication and has the performances of low section, wide band and high front-back ratio.
Disclosure of Invention
To solve the above problems, the present invention provides a low-profile broadband solar cell antenna, comprising: the antenna comprises an upper dielectric plate, a lower dielectric plate, a radiation structure, a feed structure, a director structure and a filter structure which are parallel to each other; the radiation structure is positioned on the upper surface of the upper dielectric plate and is connected with the filtering structure through a bus bar and a direct current feeder, and the radiation structure comprises a plurality of parallel solar cell strings; the feed structure comprises a slotted floor positioned on the upper surface of the lower dielectric slab and a microstrip line positioned on the lower surface of the lower dielectric slab, the director structure comprises two directors vertically positioned between the upper dielectric slab and the lower dielectric slab, the filter structure comprises a filter, and the filter is positioned on the lower surface of the lower dielectric slab.
Preferably, the thickness of the upper dielectric plate is 0.762 millimeter.
Preferably, the thickness of the lower dielectric plate is 0.7874 mm.
Preferably, the air gap between the upper dielectric plate and the lower dielectric plate is 8.1 mm.
Preferably, a plurality of strings of solar cells are arranged at equal intervals, and the lateral interval between any two adjacent strings of solar cells is 3.5 mm.
Preferably, the number of the solar cell strings is 3.
Preferably, the dimensions of the string of solar cells are 79.75 mm x 40.8 mm.
Preferably, the front end and the rear end of the plurality of strings of solar cells are respectively connected in parallel by the bus bars which are transversely distributed.
Preferably, the grooved floor includes two grooves of 7.5 mm x 33.7 mm in size.
Preferably, the director is formed by two inverted L-shaped copper structures, and the two directors correspond to the central positions of two grooves perpendicular to the grooved floor respectively.
The low-profile broadband solar cell antenna provided by the invention has the following beneficial effects:
according to the low-profile broadband solar cell antenna, the director is added into the solar cell antenna, so that the antenna has green communication and can effectively improve the front-to-back ratio of the solar cell antenna, and the antenna has stable radiation performance; the adoption of the plurality of strings of solar cells can improve the sheet distribution rate, has excellent performances of low profile and wide band, is beneficial to realizing low-carbon economy and building an energy-saving environment-friendly society, and has great practical significance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic top view of a low-profile broadband solar cell antenna according to the present invention;
FIG. 2 is a schematic perspective view of a low-profile broadband solar cell antenna according to the present invention;
FIG. 3 is a diagram of relative bandwidth matching obtained from simulation and actual testing of a low-profile broadband solar cell antenna provided by the present invention;
FIG. 4 is a radiation pattern obtained from simulation and actual testing of a low profile broadband solar cell antenna provided by the present invention;
wherein: 1. an upper dielectric plate; 2. a solar cell string; 3. a bus bar; 4. a lower dielectric plate; 5. a filter; 6. a microstrip line; 7. grooving the floor; 8. a director; 9. and a direct current feeder.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
In an embodiment of the present application, as shown in fig. 1-2, the present invention provides a low-profile broadband solar cell antenna, comprising: the antenna comprises an upper dielectric plate 1 and a lower dielectric plate 4 which are parallel to each other, a radiation structure, a feed structure, a director structure and a filter structure; the radiation structure is positioned on the upper surface of the upper dielectric plate 1 and is connected with the filter structure through a bus bar 3 and a direct current feeder 9, and the radiation structure comprises a plurality of parallel solar cell strings 2; the feed structure comprises a slotted floor 7 positioned on the upper surface of the lower-layer dielectric slab 4 and a microstrip line 6 positioned on the lower surface of the lower-layer dielectric slab, the director structure comprises two directors 8 vertically positioned between the upper-layer dielectric slab 1 and the lower-layer dielectric slab 4, the filter structure comprises a filter 5, and the filter 5 is positioned on the lower surface of the lower-layer dielectric slab 4.
The low-profile broadband solar cell antenna provided by the invention adopts a gap coupling feed mode to realize an impedance matching design, three strings of solar cell strings 2 are parallel to each other, and the interval between two adjacent strings of solar cell strings is 3.5 millimeters, so that a 1 x 2 gap array is formed. The multi-string solar cell string 2 is used for converting light energy into electric energy by using solar energy. The two ends of the solar cell string 2 are connected with the bus bar 3, and the generated electric energy can be transmitted to the bus bar 3. The bus bar 3 is used for collecting the direct current generated by the integrated solar cell string 2 and transmitting the direct current electric energy to the signal input end of the filter 5. One end of the microstrip line 6 is connected with an external exciter to excite the slotted floor 7 to radiate energy outwards. Since the dc power transmitted from the bus bar 3 may contain a small amount of ac signal, the filter 5 may block this ac signal.
In the embodiment of the present application, the thickness of the upper dielectric plate 1 is 0.762 mm.
In the embodiment of the present application, the thickness of the lower dielectric sheet 4 is 0.7874 mm.
In the embodiment of the present application, the air gap between the upper dielectric plate 1 and the lower dielectric plate 4 is 8.1 mm.
In the embodiment of the present application, a plurality of strings of solar cell strings 2 are arranged at equal intervals, and the lateral interval between any two adjacent strings of solar cell strings 2 is 3.5 mm.
In the embodiment of the present application, the number of the solar cell strings 2 is 3.
In the present embodiment, the size of the solar cell string 2 is 79.75 mm × 40.8 mm.
In the embodiment of the present application, the front and rear ends of the plurality of strings of solar cells 2 are respectively connected in parallel by the bus bars 3 which are laterally distributed.
In the present embodiment, the grooved floor 7 includes two grooves with dimensions of 7.5 mm by 33.7 mm.
In the embodiment of the present application, the directors 8 are formed by two inverted L-shaped copper structures, and the two directors 8 respectively correspond to the central positions of two grooves perpendicular to the grooved floor 7.
Fig. 3 and 4 show the radiation performance of the solar cell antenna adopting the design method and the size of the invention. The impedance matching bandwidth of the solar cell antenna adopting the design method is 1.7 GHz-2.7 GHz, the relative bandwidth is 45%, a relatively stable gain is maintained in the frequency band, the peak value of the test gain is 10.5dBi, the average gain is 9dBi, the radiation pattern accords with the characteristics of the directional antenna, the front-to-back ratio of the main polarization is more than 10dB, and good directional radiation can be realized. For the antenna, the actually measured cross polarization level is below-15 dB, the E-plane and H-plane radiation energy of the antenna is mainly concentrated in the normal direction, the stability is good, the radiation directional diagram keeps good directivity, and the good radiation performance can be achieved.
Compared with the prior art, the low-profile broadband solar cell antenna provided by the invention has the following beneficial effects:
(1) according to the invention, a plurality of solar cells are laminated to form a cell string with a large area, so that the distribution rate of the cells and the output voltage of the antenna are improved;
(2) according to the invention, a plurality of strings of solar cells are arranged at equal intervals to form a 1 × 2 slit array, so that directional radiation can be carried out;
(3) according to the invention, the output current of the solar cell antenna at the direct current port is improved by connecting the solar cells in series and parallel, and the application environment requirements that a large current cannot be provided are met;
(4) the antenna of the invention utilizes the direct current electric energy generated by the photoelectric effect of the solar cell to supply power to the system, thereby improving the utilization rate of solar energy and being beneficial to realizing low-carbon economy and building an energy-saving environment-friendly society;
(5) the invention realizes the integrated design of the solar cell antenna, covers the frequency band of 1.7 GHz-2.7 GHz, has simple structure and low system complexity and has practical application and popularization value.
According to the low-profile broadband solar cell antenna, the director is added into the solar cell antenna, so that the antenna has green communication and can effectively improve the front-to-back ratio of the solar cell antenna, and the antenna has stable radiation performance; the adoption of the plurality of strings of solar cells can improve the sheet distribution rate, has excellent performances of low profile and wide band, is beneficial to realizing low-carbon economy and building an energy-saving environment-friendly society, and has great practical significance.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (10)
1. A low profile broadband solar cell antenna, comprising: the antenna comprises an upper dielectric plate (1) and a lower dielectric plate (4) which are parallel to each other, a radiation structure, a feed structure, a director structure and a filter structure; the radiation structure is positioned on the upper surface of the upper-layer dielectric slab (1) and is connected with the filter structure through a bus bar (3) and a direct current feeder (9), and the radiation structure comprises a plurality of parallel solar cell strings (2); the feed structure comprises a slotted floor (7) positioned on the upper surface of the lower-layer dielectric slab (4) and a microstrip line (6) positioned on the lower surface of the lower-layer dielectric slab, the director structure comprises two directors (8) which are vertically positioned between the upper-layer dielectric slab (1) and the lower-layer dielectric slab (4), the filter structure comprises a filter (5), and the filter (5) is positioned on the lower surface of the lower-layer dielectric slab (4).
2. The low profile broadband solar cell antenna according to claim 1, wherein the thickness of the upper dielectric sheet (1) is 0.762 mm.
3. The low profile broadband solar cell antenna according to claim 1, wherein the thickness of the lower dielectric sheet (4) is 0.7874 mm.
4. The low-profile broadband solar cell antenna according to claim 1, wherein the air gap between the upper dielectric sheet (1) and the lower dielectric sheet (4) is 8.1 mm.
5. The low-profile broadband solar cell antenna according to claim 1, wherein a plurality of strings of solar cells (2) are arranged at equal intervals, and the lateral interval between any two adjacent strings of solar cells (2) is 3.5 mm.
6. The low-profile broadband solar cell antenna according to claim 1, characterized in that the number of solar cell strings (2) is 3.
7. The low profile broadband solar cell antenna according to claim 1, wherein the dimensions of the solar cell string (2) are 79.75 mm x 40.8 mm.
8. The low-profile broadband solar cell antenna according to claim 1, wherein a plurality of strings of solar cells (2) are connected in parallel at the front and rear ends thereof by the laterally distributed bus bars (3), respectively.
9. The low profile broadband solar cell antenna according to claim 1, characterized in that the slotted floor (7) comprises two slots with a size of 7.5 mm x 33.7 mm.
10. The low-profile broadband solar cell antenna according to claim 9, characterized in that said director (8) is constituted by two inverted-L copper structures, the two directors (8) corresponding to the central positions of the two slots perpendicular to said slotted floor (7), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111201454.1A CN114024130B (en) | 2021-10-15 | 2021-10-15 | A low profile broadband solar cell antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111201454.1A CN114024130B (en) | 2021-10-15 | 2021-10-15 | A low profile broadband solar cell antenna |
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| CN114024130A true CN114024130A (en) | 2022-02-08 |
| CN114024130B CN114024130B (en) | 2023-11-28 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114709631A (en) * | 2022-03-16 | 2022-07-05 | 天津大学 | Dual-polarized solar cell antenna based on shared aperture |
| CN115133264A (en) * | 2022-06-20 | 2022-09-30 | 天津大学 | Radar antenna unit integrated with solar cell |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110260937A1 (en) * | 2010-04-21 | 2011-10-27 | City University Of Hong Kong | Solar energy collection antennas |
| US20120032847A1 (en) * | 2010-08-05 | 2012-02-09 | Utah State University | Integrated reconfigurable solar panel antenna |
| CN107910655A (en) * | 2017-11-08 | 2018-04-13 | 中国电子科技集团公司第三十八研究所 | Conformal antenna and wing and Helios based on solar cell |
| CN111525259A (en) * | 2020-06-02 | 2020-08-11 | 中国电子科技集团公司第十八研究所 | A solar cell antenna with a series structure |
| CN111541034A (en) * | 2020-06-02 | 2020-08-14 | 中国电子科技集团公司第十八研究所 | High-gain low-profile GPS solar cell antenna excited by adopting slot mode |
| CN112003032A (en) * | 2020-08-25 | 2020-11-27 | 天津大学 | Slot array antenna of integrated solar cell for satellite navigation |
| CN113346218A (en) * | 2021-04-25 | 2021-09-03 | 天津大学 | High-gain 5G gap coupling solar antenna based on SISL structure |
-
2021
- 2021-10-15 CN CN202111201454.1A patent/CN114024130B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110260937A1 (en) * | 2010-04-21 | 2011-10-27 | City University Of Hong Kong | Solar energy collection antennas |
| US20120032847A1 (en) * | 2010-08-05 | 2012-02-09 | Utah State University | Integrated reconfigurable solar panel antenna |
| CN107910655A (en) * | 2017-11-08 | 2018-04-13 | 中国电子科技集团公司第三十八研究所 | Conformal antenna and wing and Helios based on solar cell |
| CN111525259A (en) * | 2020-06-02 | 2020-08-11 | 中国电子科技集团公司第十八研究所 | A solar cell antenna with a series structure |
| CN111541034A (en) * | 2020-06-02 | 2020-08-14 | 中国电子科技集团公司第十八研究所 | High-gain low-profile GPS solar cell antenna excited by adopting slot mode |
| CN112003032A (en) * | 2020-08-25 | 2020-11-27 | 天津大学 | Slot array antenna of integrated solar cell for satellite navigation |
| CN113346218A (en) * | 2021-04-25 | 2021-09-03 | 天津大学 | High-gain 5G gap coupling solar antenna based on SISL structure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114709631A (en) * | 2022-03-16 | 2022-07-05 | 天津大学 | Dual-polarized solar cell antenna based on shared aperture |
| CN114709631B (en) * | 2022-03-16 | 2023-09-15 | 天津大学 | A dual-polarized solar cell antenna based on shared surface |
| CN115133264A (en) * | 2022-06-20 | 2022-09-30 | 天津大学 | Radar antenna unit integrated with solar cell |
| CN115133264B (en) * | 2022-06-20 | 2023-09-15 | 天津大学 | A radar antenna unit with integrated solar cells |
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| CN114024130B (en) | 2023-11-28 |
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