CN114039196B - High-performance 4G antenna - Google Patents
High-performance 4G antenna Download PDFInfo
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- CN114039196B CN114039196B CN202111263508.7A CN202111263508A CN114039196B CN 114039196 B CN114039196 B CN 114039196B CN 202111263508 A CN202111263508 A CN 202111263508A CN 114039196 B CN114039196 B CN 114039196B
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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 3
- 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
- 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
Classifications
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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
-
- 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
-
- 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
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- Details Of Aerials (AREA)
Abstract
The application discloses a high-performance 4G antenna, which belongs to the field of antennas and comprises a substrate, an antenna radiator which is arranged on the substrate and is made of a metal piece, and a signal chip which is connected with the antenna radiator; the trace shape of the antenna radiator comprises a mountain-shaped shape, a first C-shaped shape and a second C-shaped shape; a gap is arranged between the mountain-shaped shape and the first C-shaped shape; the adjustment of the antenna bandwidth is realized by adjusting the length, width or gap of the feeder line of the antenna radiator. The antenna impedance matching method 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 that converts high-frequency current or wave-guide energy into electromagnetic waves and then emits the electromagnetic waves in a regular direction, or restores the electromagnetic waves from a certain direction into high-frequency current, and if classified by shape, the antenna may be classified into an omni-directional antenna and a directional antenna.
Directional antennas, which represent a necessarily angular planned radiation on a horizontal pattern, equivalent to directional, and a necessarily wide beam on a vertical pattern, common directional antennas include 4G antennas.
With respect to the related art in the above, the inventors consider that there are drawbacks in that: the traditional 4G antenna is difficult to debug in bandwidth, has low impedance matching degree and is inconvenient to match with terminal equipment. In this regard, further improvements are desired.
Disclosure of Invention
In order to make the impedance of the antenna more adaptive, the present 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 radiator which is arranged on the substrate and is made of a metal piece, and a signal chip which is connected with the antenna radiator; the trace shape of the antenna radiator comprises a mountain-shaped shape, a first C-shaped shape and a second C-shaped shape; the opening of the 'mountain' shape faces to the first 'C' shape, the opening of the first 'C' shape faces to the 'mountain' shape, and the opening of the second 'C' shape is the same as the opening of the first 'C' shape in direction; a gap is arranged between the mountain-shaped shape and the first C-shaped shape;
the mountain-like shape includes: the half-opening type feeder line is connected with one end of the straight-line type feeder line and the opening of the half-opening type feeder line faces the straight-line type feeder line;
the first "C" shape includes: a first "C" shaped feed line surrounded by the feed lines of the ground point;
the second "C" shape includes: the second C-shaped feeder is arranged on one side of the first C-shaped feeder away from the linear feeder and connected with the first C-shaped feeder;
the adjustment of the antenna bandwidth is realized 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 mountain, the first C and the second C is higher, and the length, the width or 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 wiring shape of the semi-open feeder is C-shaped.
Through adopting above-mentioned technical scheme, the design that the wiring shape is the C type can make full use of the usage space of base plate, reduces the waste of space utilization to improve the practicality of antenna radiator.
Preferably, the mountain-shaped shape comprises an A feeder, a B feeder, a C feeder and a D feeder; the B feeder is connected with one end of the A feeder, the C feeder is connected with the other end of the B feeder, and the D feeder is connected with the side edge of the B feeder; the A feeder line, the C feeder line and the D feeder line are parallel to each other, and the A feeder line and the B feeder line are perpendicular to each other; the length of the feeder A is the same as that of the feeder C, and the length of the feeder D is longer than that of the feeder A;
the first C-shaped part comprises an E feeder, an F feeder and a G feeder; the F feeder line is connected with one end of the E feeder line, and the G feeder line is connected with the other end of the F feeder line; the E feeder line and the G feeder line are parallel to each other, and the F feeder line and the E feeder line are perpendicular to each other; the length of the E feeder line is the same as that of the G feeder line, and the length of the F feeder line is the same as that of the B feeder line;
the second C-shaped part comprises an H feeder, an I feeder and a J feeder; the intersection point of the E feeder and the F feeder is connected with one end of the H feeder, the other end of the H feeder is connected with one end of the I feeder, the intersection point of the F feeder and the G feeder is connected with one end of the J feeder, and the other end of the J feeder is connected with the other end of the I feeder; 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 design of the 'mountain' -shaped shape, the first 'C' -shaped shape and the second 'C' -shaped shape can further facilitate the adjustment of the length, the width or the gap of the feeder line, so that the antenna can obtain better electrical performance parameters, the bandwidth is conveniently expanded, and the impedance of the antenna is more matched.
Preferably, an impedance matcher which is not connected with the antenna radiator is arranged on the substrate, 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 waves, so that the impedance of the antenna is more matched, and the antenna is convenient to match with terminal equipment.
Preferably, the impedance matcher is located at an end of the substrate remote 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, thereby being convenient for realizing the miniaturized production of the antenna and improving the space utilization rate.
Preferably, the length of the E feeder line is 1/4 wavelength.
By adopting the technical scheme, the length of the E feeder line is one quarter 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 feeder line is 5/8 wavelength.
By adopting the technical scheme, the length of the D feeder line is five eighth 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 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 realize the adjustment of the bandwidth of the antenna: the frequency range is 698-960/1710-2700MHz, the input impedance is: 50 ohms, 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 conditions, the communication frequency band of the antenna radiator can realize covering of double frequency bands to obtain higher gain, thereby improving the practicability of the antenna radiator.
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 mountain, the first C and the second C is higher, and the length, the width or 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;
2. the impedance matcher can form the characteristic of low standing waves, so that the impedance of the antenna is more matched, and the matching with terminal equipment is facilitated; the length of the 3.E feeder line is one fourth of the antenna wavelength, and the length of the D feeder line is five eighth of the antenna wavelength, 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 view of an embodiment of the present application.
Fig. 2 is a cross-sectional view of an antenna radiator of an embodiment of the present application.
Fig. 3 is an enlarged view of a B feeder of an embodiment of the present application.
Fig. 4 is an enlarged view of an F feeder of one embodiment of the present application.
Fig. 5 is an enlarged view of an impedance matcher of an embodiment of the present application.
Reference numerals illustrate:
1. an antenna radiator; 11. a feeder line A; 12. a B feeder line; 13. a C feeder line; 14. d feeder lines; 15. e feeder lines; 16. f feeder lines; 17. g feeder lines; 18. an H feeder line; 19. i feeder lines; 191. j feeder;
2. a substrate;
3. a joint; 31. a lower fixing seat; 32. an upper fixing seat; 33. a connecting cable; 34. a protective rod sleeve;
4. an impedance matcher.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-5.
The embodiment of the application discloses a high-performance 4G antenna.
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 at one side of the lower fixing seat 31 far from the joint 3, and meanwhile, a protective rod sleeve 34 is installed at one side of the upper fixing seat 32 far from the joint 3; a connecting cable 33 is arranged on one side of the joint 3, which is close to the protective rod sleeve 34, in a riveting way, and the connecting cable 33 is positioned in the protective rod sleeve 34; in this embodiment, the outer conductor and the inner conductor of the connection cable 33 are made of copper; in order to reduce oxidation of the connection cable 33, both the outer conductor and the inner conductor are tin-plated, and the medium of the connection cable 33 is made of high-temperature-resistant PTFE (polytetrafluoroethylene), so that the structure is firm and the appearance is attractive.
Referring to fig. 1 and 2, the antenna further includes a substrate 2, an antenna radiator 1 and a signal chip, wherein the substrate 2 is a Fr4 single-sided copper-clad PCB; since the larger the dielectric constant is, the larger the loss of the antenna is, the range of the dielectric constant is set to 4.2 to 4.6; the substrate 2 is mounted on the side of the connection cable 33 remote from the joint 3, and the antenna radiator 1 is mounted on the substrate 2; the antenna radiator 1 is made of a metal piece, which in this embodiment comprises copper, silver and tungsten; meanwhile, the signal chip is connected with the antenna radiator 1.
The antenna is vertically erected, and the longest side of the vertical section of the antenna radiator 1 is the length of the antenna radiator 1; in order to make the performance of the antenna radiator 1 better, the length of the antenna radiator 1 is an integer multiple of the antenna wavelength.
Directivity refers to the out-of-roundness of the antenna horizontal plane and is one of the indexes for measuring the important performance of the antenna; in the horizontal plane of 360 degrees, the directivity of the antenna with good directivity is stronger, while the antenna with poor directivity is stronger in one direction, but weaker in other directions; the antenna radiator 1 made of a metal member has small loss and good directivity.
Referring to fig. 2 and 3, the trace shape of the antenna radiator 1 includes a "mountain" shape, a first "C" shape, and a second "C" shape; when the antenna is vertically erected, the mountain-shaped shape, the first C-shaped shape and the second C-shaped shape are distributed in sequence from top to bottom; wherein the opening of the "mountain" shape is directed towards the first "C" shape; the opening of the first C-shaped part faces the mountain-shaped part; meanwhile, the opening direction of the second C-shaped opening is the same as that of the first C-shaped opening;
in the present embodiment, the antenna radiator 1 having a "mountain" shape is a radiating element capable of transmitting and receiving electromagnetic wave energy; the antenna radiator 1 of the first C-shaped and the second C-shaped is a grounding oscillator, and the radiating oscillator and the grounding oscillator form a half-wave oscillator after feeding.
The mountain-shaped feeder comprises a straight feeder and a half-opening feeder, the straight feeder is surrounded by a feeder connected with a feeding point, and the feeding point is connected and conducted with an inner conductor of the connecting cable 33; the central notch of the semi-open type feeder line is connected with one end of the linear feeder line, and the opening of the semi-open type feeder line faces the linear feeder line; in order to fully utilize the use space of the substrate 2 and facilitate miniaturization, the wiring shape of the half-open feeder is C-shaped.
Specifically, referring to fig. 2 and 3, the "mountain" shape includes an a feeder 11, a B feeder 12, a C feeder 13, a D feeder 14; wherein, 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 this embodiment, the a feeder 11, the C feeder 13, and the D feeder 14 are parallel to each other, and the a feeder 11 and the B feeder 12 are perpendicular to each other; meanwhile, the length of the a feeder 11 is the same as the length of the C feeder 13, and the length of the D feeder 14 is longer than the length of the a feeder 11.
The first C-shaped feeder line is surrounded by a feeder line connected with a grounding point; the ground point is in communication with the outer conductor connection of the connection cable 33.
Specifically, referring to fig. 2 and 4, the first "C" shape includes an E feeder 15, an F feeder 16, a G feeder 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, the E feeder 15 and the G feeder 17 are parallel to each other, and the F feeder 16 and the E feeder 15 are perpendicular to each other; meanwhile, the length of the E feeder 15 is the same as the length of the G feeder 17, and the length of the F feeder 16 is the same as the length of the B feeder 12.
The second C-shaped feeder line comprises a second C-shaped feeder line, the second C-shaped feeder line is arranged on one side of the first C-shaped feeder line far away from the linear feeder line, and the second C-shaped feeder line is connected with the first C-shaped feeder line.
Specifically, referring to fig. 2 and 4, the second "C" shape includes an H feeder 18, an I feeder 19, a J feeder 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 this embodiment, the H feeder 18 and the J feeder 191 are parallel to each other, and the I feeder 19 and the H feeder 18 are perpendicular to each other; meanwhile, the length of the H feeder 18 is the same as that of the J feeder 191, and the length of the I feeder 19 is the same as that of the F feeder 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 can be adjusted, and the impedance of the antenna can be more adaptive.
Referring to fig. 2, the length of the e-feed 15 is 1/4 of the antenna wavelength, and the length of the D-feed 14 is 5/8 of the antenna wavelength, so that the maximum antenna gain can be obtained in the monopole antenna.
On the basis of meeting the following conditions, the length, the line width or the gap of the feeder line of the antenna radiator 1 are adjusted, so that the adjustment of the bandwidth of the antenna is realized: 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, and can be matched with terminal equipment and provide good electrical performance indexes.
Referring to fig. 2, a gap is provided between the shape of the "mountain" and the first "C" shape, and adjustment of the bandwidth of the antenna can be achieved 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 matcher 4 is mounted on the substrate 2, and the impedance matcher 4 is not connected to the antenna radiator 1; in this embodiment, the vertical section of the impedance matcher 4 is rectangular, and in other embodiments may be square; the bandwidth of the antenna can be adjusted by adjusting the size and shape of the impedance matcher 4, resulting in a low standing wave characteristic.
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 unit 4 is provided at the 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 wiring shape of the antenna radiator 1 comprises a mountain-shaped shape, a first C-shaped shape and a second C-shaped shape, and 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 achieved by adjusting the length and width of the feed lines 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 have performed a series of tests on the antenna structure in this application, specifically as follows:
as can be seen from Table 1, the antenna of the present application meets the design requirements of industry antennas, and has good coverage frequency, radiation efficiency and gain; where 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 foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (8)
1. A high performance 4G antenna, characterized by: the antenna comprises a substrate (2), an antenna radiator (1) which is arranged on the substrate (2) and is made of a metal piece, and a signal chip which is connected with the antenna radiator (1); the wiring shape of the antenna radiator (1) comprises a mountain-shaped shape, a first C-shaped shape and a second C-shaped shape; the opening of the 'mountain' shape faces to the first 'C' shape, the opening of the first 'C' shape faces to the 'mountain' shape, and the opening of the second 'C' shape is the same as the opening of the first 'C' shape in direction; a gap is arranged between the mountain-shaped shape and the first C-shaped shape;
the mountain-like shape includes: the half-opening type feeder line is connected with one end of the straight-line type feeder line and the opening of the half-opening type feeder line faces the straight-line type feeder line;
the first "C" shape includes: a first "C" shaped feed line surrounded by the feed lines of the ground point;
the second "C" shape includes: the second C-shaped feeder is arranged on one side of the first C-shaped feeder away from the linear feeder and connected with the first C-shaped feeder;
the adjustment of the antenna bandwidth is realized 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 feeder is C-shaped.
3. The 4G antenna of claim 1, wherein: the mountain-shaped shape comprises 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); 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-shaped part comprises an E feeder (15), an F feeder (16) and a G feeder (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); 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 line (15) is the same as that of the G feeder line (17), and the length of the F feeder line (16) is the same as that of the B feeder line (12);
the second C-shaped part comprises an H feeder line (18), an I feeder line (19) and a J feeder line (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 feeder line (18) and the J feeder line (191) are parallel to each other, and the I feeder line (19) and the H feeder 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 arranged on the substrate (2), the vertical section of the impedance matcher (4) is rectangular, the antenna bandwidth is adjusted by adjusting the size and the shape of the impedance matcher (4), the impedance matcher (4) is close to the second C-shaped, and the impedance matcher (4) is arranged on one side, far away from the linear feeder, of the second C-shaped.
5. The 4G antenna of claim 4, wherein: the impedance matcher (4) is located at the end portion, away from the antenna radiator (1), of the substrate (2).
6. A 4G antenna according to claim 3, characterized in that: the length of the E feeder line (15) is 1/4 wavelength.
7. A 4G antenna according to claim 3, characterized in that: the length of the D feeder line (14) is 5/8 wavelength.
8. The 4G antenna according to claim 6 or 7, characterized in that: on the basis of meeting the following conditions, the length, the line width or the gap of the feeder line of the antenna radiator (1) are adjusted, so that the adjustment of the bandwidth of the antenna is realized: the frequency range is 698-960/1710-2700MHz, the input impedance is: 50 ohms, standing wave ratio less than 2.0, gain: 3dBi, horizontal angle: 360 degrees, vertical angle: 55 degrees, power capacity: 50W.
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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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| CN114039196A CN114039196A (en) | 2022-02-11 |
| CN114039196B true CN114039196B (en) | 2024-02-09 |
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| CN114039196A (en) | 2022-02-11 |
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