CN114039196A - High-performance 4G antenna - Google Patents
High-performance 4G antenna Download PDFInfo
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- CN114039196A CN114039196A CN202111263508.7A CN202111263508A CN114039196A CN 114039196 A CN114039196 A CN 114039196A CN 202111263508 A CN202111263508 A CN 202111263508A CN 114039196 A CN114039196 A CN 114039196A
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- 239000000758 substrate Substances 0.000 claims abstract description 22
- 229910052751 metal Inorganic materials 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims abstract description 5
- 230000003044 adaptive effect Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 239000004020 conductor Substances 0.000 description 6
- 230000005404 monopole Effects 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 239000002699 waste material 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
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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
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/10—Resonant slot antennas
Abstract
The application discloses a high-performance 4G antenna, which belongs to the field of antennas and comprises a substrate, an antenna radiating body which is arranged on the substrate and is made of metal pieces and a signal chip which is connected with the antenna radiating body; the shape of the wire of the antenna radiator comprises a Chinese character shan shape, a first C shape and a second C shape; a gap is arranged between the shape like the Chinese character shan and the first shape like the C; the adjustment of the antenna bandwidth is realized by adjusting the length, the width or the size of the gap of the feeder line of the antenna radiator. The antenna has the effect of enabling the impedance of the antenna to be more adaptive.
Description
Technical Field
The invention relates to the field of antennas, in particular to a high-performance 4G antenna.
Background
An antenna is a device which converts high-frequency current or energy in a waveguide mode into electromagnetic waves and then emits the electromagnetic waves in a regular direction, or reduces the electromagnetic waves from a certain direction into high-frequency current.
Directional antennas appear as necessarily angle-planned radiation, equivalent to directivity, in the horizontal pattern and necessarily wide beams in the vertical pattern, and common directional antennas include 4G antennas.
In view of the related art in the above, the inventors consider that there are drawbacks in that: the traditional 4G antenna is difficult to debug the bandwidth, has low impedance matching degree and is inconvenient to match with terminal equipment. For this reason, further improvement is awaited.
Disclosure of Invention
In order to make the impedance of the antenna more adaptive, the application provides a high-performance 4G antenna.
The application provides a high performance 4G antenna adopts following technical scheme:
a high-performance 4G antenna comprises a substrate, an antenna radiating body which is arranged on the substrate and is made of metal pieces, and a signal chip which is connected with the antenna radiating body; the wiring shape of the antenna radiator comprises a Chinese character 'shan' shape, a first 'C' shape and a second 'C' shape; the opening of the shape of the Chinese character shan faces to a first shape of the Chinese character shan, the opening of the first shape of the Chinese character shan faces to the shape of the Chinese character shan, and the opening of the second shape of the Chinese character shan is in the same direction as the opening of the first shape of the Chinese character shan; a gap is arranged between the shape like the Chinese character shan and the first shape like the C;
the shape of the Chinese character 'shan' includes: the feeder comprises a straight feeder line and a semi-open type feeder line, wherein the straight feeder line is surrounded by the feeder lines of the feeding points, and the semi-open type feeder line is connected with one end of the straight feeder line and has an opening facing the straight feeder line;
the first "C" shape comprises: a first 'C' type feeder line surrounded by the feeder line of the grounding point;
the second "C" shape comprises: the second C-shaped feeder line is arranged on one side, far away from the straight feeder line, of the first C-shaped feeder line and is connected with the first C-shaped feeder line;
and adjusting the bandwidth of the antenna by adjusting the length and the width of the feeder line of the antenna radiator or the size of the gap.
By adopting the technical scheme, the space utilization rate of the antenna radiator in the shape of the Chinese character shan, the first C and the second C is higher, and the length, the width or the size of the gap of the feeder line can be conveniently adjusted, so that the bandwidth is expanded, and the impedance of the antenna is more adaptive.
Preferably, the half-open type feeder line is in a C shape.
Through adopting above-mentioned technical scheme, walk the design that the line shape is the C type and can make full use of the usage space of base plate, reduce space utilization's waste to improve the practicality of antenna radiator.
Preferably, the shape of the Chinese character 'shan' comprises a feeder line A, a feeder line B, a feeder line C and a feeder line D; the feeder line B is connected with one end of the feeder line A, the feeder line C is connected with the other end of the feeder line B, and the feeder line D is connected with the side edge of the feeder line B; the feeder line A, the feeder line C and the feeder line D are parallel to each other, and the feeder line A and the feeder line B are perpendicular to each other; the length of the feeder line A is the same as that of the feeder line C, and the length of the feeder line D is longer than that of the feeder line A;
the first C-shaped shape comprises an E feeder line, an F feeder line and a G feeder line; the feeder line G is connected with the other end of the feeder line F; the feed line E is parallel to the feed line G, and the feed line F is perpendicular to the feed line E; the length of the feeder line E is the same as that of the feeder line G, and the length of the feeder line F is the same as that of the feeder line B;
the second C-shaped shape comprises an H feeder, an I feeder and a J feeder; the intersection point of the feeder E and the feeder F is connected with one end of the feeder H, the other end of the feeder H is connected with one end of the feeder I, the intersection point of the feeder F and the feeder G is connected with one end of the feeder J, and the other end of the feeder J is connected with the other end of the feeder I; the H feeder line and the J feeder line are parallel to each other, and the I feeder line and the H feeder line are perpendicular to each other; the length of the H feeder line is the same as that of the J feeder line, and the length of the I feeder line is the same as that of the F feeder line.
By adopting the technical scheme, the length, the width or the size of the gap of the feeder line can be further conveniently adjusted by the aid of the design of the shape like the Chinese character shan, the shape like the Chinese character 'ji' and the shape like the first C and the shape like the second C, so that the antenna can obtain better electrical performance parameters, the bandwidth can be conveniently expanded, and the impedance of the antenna is matched more.
Preferably, the substrate is provided with an impedance matcher which is not connected with the antenna radiator, the vertical section of the impedance matcher is rectangular, and the adjustment of the bandwidth of the antenna is realized by adjusting the size and the shape of the impedance matcher.
By adopting the technical scheme, the impedance matcher can form the characteristic of low standing wave, so that the impedance of the antenna is matched more, and the antenna is convenient to be matched with terminal equipment.
Preferably, the impedance matcher is positioned at an end of the substrate away from the antenna radiator.
By adopting the technical scheme, the impedance matcher is positioned at the end part of the substrate, so that the limited use space of the substrate can be fully utilized, the miniaturization production of the antenna is convenient to realize, and the space utilization rate is improved.
Preferably, the length of the E feed line is 1/4 wavelengths.
By adopting the technical scheme, the length of the E feeder is one fourth of the wavelength of the antenna, so that the maximum gain can be obtained in the monopole antenna, and the gain effect of the antenna is improved.
Preferably, the length of the D-feed line is 5/8 wavelengths.
By adopting the technical scheme, the length of the D feeder is five eighths of the wavelength of the antenna, so that the maximum gain can be obtained in the monopole antenna, and the gain effect of the antenna is further improved.
Preferably, the length of the feeder line, the line width of the feeder line, or the gap of the antenna radiator is adjusted on the basis of satisfying the following conditions, so as to adjust the bandwidth of the antenna: frequency range 698-960/1710-2700MHz, input impedance: 50 ohm, standing wave ratio less than 2.0, gain: 3dBi, horizontal angle: 360 degrees, vertical angle: 55 degrees, power capacity: 50W.
By adopting the technical scheme, on the basis of meeting the above conditions, the communication frequency band of the antenna radiator can realize covering of double frequency bands, so that higher gain is obtained, and the practicability of the antenna radiator is improved.
In summary, the present application includes at least one of the following beneficial technical effects:
the space utilization rate of the antenna radiator in the shape of the Chinese character shan, the first C-shaped shape and the second C-shaped shape is high, and the length, the width or the size of a gap of a feeder line can be conveniently adjusted, so that the bandwidth is expanded, and the impedance of the antenna is more adaptive;
2. the impedance matcher can form the characteristic of low standing wave, so that the impedance of the antenna is more matched, and the antenna is conveniently matched with terminal equipment;
and 3. the length of the E feeder is one fourth of the wavelength of the antenna, and the length of the D feeder is five eighths of the wavelength of the antenna, so that the maximum gain can be obtained in the monopole antenna, and the gain effect of the antenna is improved.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present application.
Fig. 2 is a cross-sectional view of an antenna radiator according to an embodiment of the present application.
Fig. 3 is an enlarged view of a B feed line of an embodiment of the present application.
Fig. 4 is an enlarged view of an F-feed line of an embodiment of the present application.
Fig. 5 is an enlarged view of an impedance matcher of an embodiment of the present application.
Description of reference numerals:
1. an antenna radiator; 11. a feeder line; 12. b, a feeder line; 13. c, a feeder line; 14. a D feeder line; 15. e, a feeder line; 16. f, a feeder line; 17. g feeder line; 18. an H feeder line; 19. i, a feeder line; 191. j feeder line;
2. a substrate;
3. a joint; 31. a lower fixed seat; 32. an upper fixed seat; 33. connecting a cable; 34. a protective rod sleeve;
4. an impedance matcher.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses a 4G antenna with high performance.
Referring to fig. 1, the antenna includes a joint 3, a lower fixing seat 31 and an upper fixing seat 32, the lower fixing seat 31 is fixedly installed on the joint 3, the upper fixing seat 32 is movably hinged to one side of the lower fixing seat 31 far away from the joint 3, and meanwhile, a protective rod sleeve 34 is installed on one side of the upper fixing seat 32 far away from the joint 3; a connecting cable 33 is riveted on one side of the joint 3 close to the protective rod sleeve 34, and the connecting cable 33 is positioned in the protective rod sleeve 34; in the present embodiment, the outer conductor and the inner conductor of the connection cable 33 are made of copper material; in order to reduce the oxidation of the connection cable 33, both the outer conductor and the inner conductor are tinned, and the medium of the connection cable 33 is made of high-temperature resistant PTFE (polytetrafluoroethylene), so that the structure is strong and the appearance is beautiful.
Referring to fig. 1 and 2, the antenna further includes a substrate 2, an antenna radiator 1 and a signal chip, the substrate 2 is a Fr4 single-sided copper-clad PCB; since the larger the dielectric constant, the larger the loss of the antenna, the dielectric constant is set to a range of 4.2 to 4.6; the substrate 2 is mounted on the side of the connection cable 33 remote from the connector 3, while the antenna radiator 1 is mounted on the substrate 2; the antenna radiator 1 is made of a metal member, and in this embodiment, the metal member includes copper, silver, and tungsten; meanwhile, the signal chip is connected to the antenna radiator 1.
When the antenna is erected vertically, the longest side of the vertical section of the antenna radiator 1 is the length of the antenna radiator 1; in order to improve the performance of the antenna radiator 1, the length of the antenna radiator 1 is an integral multiple of the antenna wavelength.
The directivity refers to the out-of-roundness of the horizontal plane of the antenna and is one of indexes for measuring the important performance of the antenna; in a horizontal plane of 360 degrees, the antenna with good directivity has stronger directivity, while the antenna with poor directivity has stronger directivity in a certain direction but weaker in other directions; the antenna radiator 1 made of a metal material has a small loss and good directivity.
Referring to fig. 2 and 3, the trace shape of the antenna radiator 1 includes a "chevron" shape, a first "C" shape, and a second "C" shape; when the antenna is erected, the Chinese character 'shan' shape, the first 'C' shape and the second 'C' shape are sequentially distributed from top to bottom; wherein the opening of the shape of the Chinese character shan faces to the shape of the first C; the opening of the first C-shaped shape faces to the shape of the Chinese character shan; meanwhile, the opening of the second C-shaped shape is in the same direction as the opening of the first C-shaped shape;
in the present embodiment, the antenna radiator 1 in the shape of a "chevron" is a radiation element that can transmit and receive electromagnetic wave energy; the first and second C-shaped antenna radiators 1 are grounded oscillators, and the radiating oscillators and the grounded oscillators are fed to form half-wave oscillators.
The shape of the Chinese character 'shan' comprises a 'I' -shaped feeder and a half-open-type feeder, the 'I' -shaped feeder is surrounded by the feeders connected with feeding points, and the feeding points are connected and conducted with the inner conductors of the connecting cables 33; the central notch of the semi-open type feeder line is connected with one end of the I-shaped feeder line, and the opening of the semi-open type feeder line faces the I-shaped feeder line; in order to make full use of the space of the substrate 2 and to facilitate miniaturization, the half-aperture feeder has a C-shaped trace.
Specifically, referring to fig. 2 and 3, the "chevron" shape includes an a feeder line 11, a B feeder line 12, a C feeder line 13, and a D feeder line 14; the B feeder line 12 is connected with one end of the A feeder line 11, the C feeder line 13 is connected with the other end of the B feeder line 12, and the D feeder line 14 is connected with the side edge of the B feeder line 12; in the present embodiment, the a feeder line 11, the C feeder line 13, and the D feeder line 14 are parallel to each other, and the a feeder line 11 and the B feeder line 12 are perpendicular to each other; meanwhile, the length of the a feed line 11 is the same as that of the C feed line 13, and the length of the D feed line 14 is longer than that of the a feed line 11.
The first C-shaped feeder line is surrounded by the feeder line connected with the grounding point; the ground point is connected and conducted to the outer conductor of the connection cable 33.
Specifically, referring to fig. 2 and 4, the first "C" shape includes an E feed line 15, an F feed line 16, a G feed line 17; the F feeder line 16 is connected with one end of the E feeder line 15, and the G feeder line 17 is connected with the other end of the F feeder line 16; in the present embodiment, both the E feed line 15 and the G feed line 17 are parallel to each other, and both the F feed line 16 and the E feed line 15 are perpendicular to each other; meanwhile, the length of the E feed line 15 is the same as that of the G feed line 17, and the length of the F feed line 16 is the same as that of the B feed line 12.
The second C-shaped feeder line is arranged on one side, far away from the first C-shaped feeder line, of the first C-shaped feeder line and connected with the first C-shaped feeder line.
Specifically, referring to fig. 2 and 4, the second "C" shape includes an H feed line 18, an I feed line 19, a J feed line 191; the intersection point of the E feeder line 15 and the F feeder line 16 is connected with one end of the H feeder line 18, the other end of the H feeder line 18 is connected with one end of the I feeder line 19, the intersection point of the F feeder line 16 and the G feeder line 17 is connected with one end of the J feeder line 191, and the other end of the J feeder line 191 is connected with the other end of the I feeder line 19; in the present embodiment, the H feed line 18 and the J feed line 191 are parallel to each other, and the I feed line 19 and the H feed line 18 are perpendicular to each other; meanwhile, the length of the H feed line 18 is the same as that of the J feed line 191, and the length of the I feed line 19 is the same as that of the F feed line 16.
The length and the width of the feeder line of the antenna radiator 1 can be adjusted according to actual requirements, so that the bandwidth of the antenna is adjusted, and the impedance of the antenna is more adaptive.
Referring to fig. 2, the E-feed 15 has an antenna wavelength of 1/4 a and the D-feed 14 has an antenna wavelength of 5/8 a, so that the maximum antenna gain can be obtained in the monopole antenna.
On the basis of meeting the following conditions, the feeder length, the feeder line width or the gap of the antenna radiator 1 are adjusted to realize the adjustment of the antenna bandwidth: the frequency range is 698-960/1710-2700MHz, the input impedance is 50 ohms, the standing-wave ratio is less than 2.0, the gain is 3dBi, meanwhile, the horizontal angle is 360 degrees, the vertical angle is 55 degrees, and the power capacity is 50W; the antenna has the advantages of wide frequency band, coverage of 2G, 3G and 4G frequency bands, low standing-wave ratio and good out-of-roundness of the antenna, so that the antenna can be matched with terminal equipment and provides better electrical performance indexes.
Referring to fig. 2, a gap is formed between the shape of the Chinese character shan and the shape of the first character "C", and the adjustment of the bandwidth of the antenna can be realized by adjusting the size of the gap;
referring to fig. 2 and 4, in order to further adapt the impedance of the antenna, an impedance matching unit 4 is mounted on the substrate 2, and the impedance matching unit 4 is not connected to the antenna radiator 1; in this embodiment, the vertical section of the impedance matcher 4 is rectangular, and may be square in other embodiments; the adjustment of the bandwidth of the antenna can be realized by adjusting the size and shape of the impedance matcher 4, so as to form the characteristic of low standing wave.
Referring to fig. 2 and 5, in order to make full use of the space of the substrate 2 and to further facilitate miniaturization, the impedance matching box 4 is provided at an end of the substrate 2 remote from the antenna radiator 1.
The implementation principle of the high-performance 4G antenna in the embodiment of the application is as follows: the shape of the trace of the antenna radiator 1 comprises a shape of Chinese character shan, a first shape of C and a second shape of C, and meanwhile, an impedance matcher 4 is arranged at the end part of the substrate 2 far away from the antenna radiator 1; the adjustment of the antenna bandwidth is realized by adjusting the length and width of the feed line of the antenna radiator or the size and shape of the gap between the feed lines or the size and shape of the impedance matcher 4.
The inventors performed a series of tests on the antenna structure in the present application, specifically as follows:
as can be seen from table 1, the antenna of the present application meets the design requirements of industrial antennas, and has good coverage frequency, radiation efficiency, and gain; frequency is the coverage Frequency, Efficiency is the radiation Efficiency, and Gain is the Gain.
TABLE 1
| Frequency | Efficiency(％) | Gain(dBi) |
| 700MHz | 16.03 | -4.34 |
| 720MHz | 15.92 | -4.19 |
| 740MHz | 15.17 | -4.4 |
| 760MHz | 13.34 | -5.25 |
| 780MHz | 13.46 | -5.47 |
| 800MHz | 14.86 | -4.83 |
| 820MHz | 12.25 | -5.57 |
| 840MHz | 13.71 | -4.64 |
| 860MHz | 12.74 | -4.32 |
| 880MHz | 13.12 | -3.61 |
| 900MHz | 16.48 | -2.26 |
| 920MHz | 17.26 | -1.92 |
| 940MHz | 18.28 | -1.89 |
| 960MHz | 18.84 | -1.97 |
| 1.71GHz | 7.11 | -6.31 |
| 1.81GHz | 19.77 | -2.34 |
| 1.91GHz | 37.58 | -0.38 |
| 2.01GHz | 37.76 | -0.23 |
| 2.11GHz | 32.14 | -0.04 |
| 2.21GHz | 45.81 | 0.71 |
| 2.31GHz | 48.87 | 0.74 |
| 2.41GHz | 71.94 | 1.77 |
| 2.51GHz | 55.85 | 1.04 |
| 2.61GHz | 57.41 | 1.64 |
| 2.71GHz | 52.6 | 0.79 |
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A high-performance 4G antenna is characterized in that: the antenna comprises a substrate (2), an antenna radiator (1) which is arranged on the substrate (2) and is made of metal pieces, and a signal chip which is connected with the antenna radiator (1); the wiring shape of the antenna radiator (1) comprises a Chinese character 'shan' shape, a first C-shaped shape and a second C-shaped shape; the opening of the shape of the Chinese character shan faces to a first shape of the Chinese character shan, the opening of the first shape of the Chinese character shan faces to the shape of the Chinese character shan, and the opening of the second shape of the Chinese character shan is in the same direction as the opening of the first shape of the Chinese character shan; a gap is arranged between the shape like the Chinese character shan and the first shape like the C;
the shape of the Chinese character 'shan' includes: the feeder comprises a straight feeder line and a semi-open type feeder line, wherein the straight feeder line is surrounded by the feeder lines of the feeding points, and the semi-open type feeder line is connected with one end of the straight feeder line and has an opening facing the straight feeder line;
the first "C" shape comprises: a first 'C' type feeder line surrounded by the feeder line of the grounding point;
the second "C" shape comprises: the second C-shaped feeder line is arranged on one side, far away from the straight feeder line, of the first C-shaped feeder line and is connected with the first C-shaped feeder line;
and adjusting the bandwidth of the antenna by adjusting the length and the width of the feeder line of the antenna radiator or the size of the gap.
2. The 4G antenna of claim 1, wherein: the wiring shape of the semi-open type feeder line is C-shaped.
3. The 4G antenna of claim 1, wherein: the shape of the Chinese character 'shan' comprises an A feeder line (11), a B feeder line (12), a C feeder line (13) and a D feeder line (14); the feeder line B (12) is connected with one end of the feeder line A (11), the feeder line C (13) is connected with the other end of the feeder line B (12), and the feeder line D (14) is connected with the side edge of the feeder line B (12); the A feeder line (11), the C feeder line (13) and the D feeder line (14) are parallel to each other, and the A feeder line (11) and the B feeder line (12) are perpendicular to each other; the length of the A feeder line (11) is the same as that of the C feeder line (13), and the length of the D feeder line (14) is longer than that of the A feeder line (11);
the first 'C' shape comprises an E feed line (15), an F feed line (16), a G feed line (17); the F feeder (16) is connected with one end of the E feeder (15), and the G feeder (17) is connected with the other end of the F feeder (16); the E feeder line (15) and the G feeder line (17) are parallel to each other, and the F feeder line (16) and the E feeder line (15) are perpendicular to each other; the length of the E feeder (15) is the same as that of the G feeder (17), and the length of the F feeder (16) is the same as that of the B feeder (12);
the second "C" shape comprises an H feed (18), an I feed (19), a J feed (191); the intersection point of the E feeder line (15) and the F feeder line (16) is connected with one end of an H feeder line (18), the other end of the H feeder line (18) is connected with one end of an I feeder line (19), the intersection point of the F feeder line (16) and the G feeder line (17) is connected with one end of a J feeder line (191), and the other end of the J feeder line (191) is connected with the other end of the I feeder line (19); the H feed line (18) and the J feed line (191) are parallel to each other, and the I feed line (19) and the H feed line (18) are perpendicular to each other; the length of the H feeder line (18) is the same as that of the J feeder line (191), and the length of the I feeder line (19) is the same as that of the F feeder line (16).
4. The 4G antenna of claim 1, wherein: the antenna is characterized in that an impedance matcher (4) which is not connected with the antenna radiator (1) is installed on the substrate (2), the vertical section of the impedance matcher (4) is rectangular, and the antenna bandwidth is adjusted by adjusting the size and the shape of the impedance matcher (4).
5. The 4G antenna of claim 4, wherein: the impedance matcher (4) is positioned at the end part of the substrate (2) far away from the antenna radiator (1).
6. 4G antenna according to claim 3, characterized in that: the length of the E feed line (15) is 1/4 wavelengths.
7. 4G antenna according to claim 3, characterized in that: the length of the D feed line (14) is 5/8 wavelengths.
8. 4G antenna according to claim 6 or 7, characterized in that: on the basis of meeting the following conditions, the feeder length, the feeder line width or the gap of the antenna radiator (1) are adjusted to realize the adjustment of the antenna bandwidth: frequency range 698-960/1710-2700MHz, input impedance: 50 ohm, standing wave ratio less than 2.0, gain: 3dBi, horizontal angle: 360 degrees, vertical angle: 55 degrees, power capacity: 50W.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111263508.7A CN114039196B (en) | 2021-10-28 | 2021-10-28 | High-performance 4G antenna |
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| CN202111263508.7A CN114039196B (en) | 2021-10-28 | 2021-10-28 | High-performance 4G antenna |
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| CN114039196B CN114039196B (en) | 2024-02-09 |
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| CN114039196B (en) | 2024-02-09 |
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