CN216903367U - Antenna structure and terminal - Google Patents
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- CN216903367U CN216903367U CN202123377583.4U CN202123377583U CN216903367U CN 216903367 U CN216903367 U CN 216903367U CN 202123377583 U CN202123377583 U CN 202123377583U CN 216903367 U CN216903367 U CN 216903367U
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Abstract
The utility model provides an antenna structure and a terminal, and belongs to the technical field of antennas. The antenna structure comprises a bottom plate, a positioning antenna, at least four mobile communication antennas, at least four wireless communication antennas and a feed unit, wherein the positioning antenna is arranged in the center of the bottom plate, the mobile communication antennas and the wireless communication antennas are uniformly distributed around the positioning antenna, and the mobile communication antennas and the wireless communication antennas are arranged at intervals, and are compactly arranged on the premise of no interference among the positioning antenna, the mobile communication antennas and the wireless communication antennas, so that the mutual influence among the antennas is reduced, the antenna structure has the functions of mobile communication, wireless communication and positioning, can meet the requirements of being suitable for use in any country or region of the world, and is high in positioning precision, compact in size and convenient to install.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to an antenna structure and a terminal.
Background
With the development of modern communication technology, mobile devices become an indispensable part of people's lives, and communication systems have increasingly high requirements on communication efficiency. The fifth generation mobile communication technology 5G can meet the communication requirement of faster speed and larger network capacity, and a Multiple-Input Multiple-Output (MIMO) architecture is a common design for meeting the requirement.
On the one hand, the frequency band of the 5G antenna is generally designed according to the country or region of use, i.e. the antenna frequency band covers all 5G frequency bands, and is not suitable for global use. Or, only one single full-band 5G antenna needs to be installed, and 4 5G antenna units need to be installed to realize a 5G MIMO antenna, which is inconvenient to install and use.
On the other hand, in general, except a few communication functions, such as WIFI and bluetooth communication, the communication frequency bands are very close to each other, so that one antenna can have both the WIFI and bluetooth communication functions, and most antennas can only realize a single communication function. In order to satisfy the requirement of having multiple communication functions, antennas with multiple functions are generally combined together, so that the multiple antennas work cooperatively.
On the other hand, as a mainstream antenna form of high-precision positioning nowadays, GNSS antennas are combined into most combined antennas to realize a positioning function, but in order to reduce overall volume occupation as much as possible, many combined antennas have less influence on the GNSS antennas by other antennas and circuits in a PCB board after combination, resulting in poor positioning precision of the GNSS antennas.
Therefore, how to design an integrated antenna structure, which has mobile communication, wireless communication and positioning functions, meets the requirements of being suitable for use in any country or region of the world, has high positioning precision, compact antenna size and convenient installation, and has important practical significance.
SUMMERY OF THE UTILITY MODEL
In view of the above technical problems, the present invention provides an antenna structure and a terminal having mobile communication, wireless communication and positioning functions, which can be suitable for any country or region around the world, and has high positioning accuracy, compact antenna size and convenient installation.
An embodiment of the present invention provides an antenna structure, including: the middle part of the bottom plate is provided with a support column; the positioning antenna is arranged on the supporting column; the N mobile communication antennas are arranged on the upper surface of the bottom plate in a surrounding mode along a first circumferential direction, each mobile communication antenna comprises a first radiating unit and a second radiating unit which are flaky, the first radiating unit is arranged on the bottom plate and extends in the radial direction, and the second radiating unit extends from the top end of the first radiating unit towards the first circumferential direction; n wireless communication antennas, wherein N is more than or equal to 6 and more than or equal to 3, N is an integer, the N wireless communication antennas and the N mobile communication antennas are alternately distributed on the upper surface of the bottom plate along the first circumference by taking the central axis as the center line of the positioning antenna, 1 wireless communication antenna is arranged between any two adjacent mobile communication antennas, each wireless communication antenna comprises a third flaky radiation unit, and the third radiation unit is arranged on the bottom plate and extends along the radial direction; the feeding unit comprises 2N +1 feeder lines connected with the radio frequency connection module, and the 2N +1 feeder lines are respectively connected with the positioning antenna, the N mobile communication antennas and the N wireless communication antennas in a one-to-one correspondence manner; wherein, the positioning antenna, the N mobile communication antennas and the N wireless communication antennas are arranged at intervals.
Preferably, a through hole is formed in the middle of the bottom plate, the supporting column extends from the lower surface of the bottom plate through the through hole to protrude out of the upper surface of the bottom plate, and the central axis of the positioning antenna passes through the center of the bottom plate; the first radiation unit is vertically arranged on the bottom plate and extends along the radial direction, the second radiation unit extends from the top end of the first radiation unit to the first circumferential direction and is perpendicular to the first radiation unit, and the third radiation unit is vertically arranged on the bottom plate and extends along the radial direction; the N wireless communication antennas and the N mobile communication antennas are uniformly and alternately distributed on the bottom plate along the first circumference by taking the central axis of the positioning antenna as a central line; the positioning antenna is at least flush with the highest one of the N wireless communication antennas and the N mobile communication antennas along the thickness direction of the bottom plate from the upper surface of the bottom plate.
Preferably, the positioning antenna is a GNSS antenna; the mobile communication antenna is a 5G antenna, and the radiation frequency band is 600MHz-9 GHz; the wireless communication antenna is a WiFi antenna.
Preferably, the N mobile communication antennas are arranged in pairs, and each pair of mobile communication antennas is centered with respect to the center of the bottom plate; the N wireless communication antennas are arranged in pairs, and each pair of wireless communication antennas is in central symmetry with respect to the center of the bottom plate.
Preferably, N is 4, 4 mobile communication antennas and 4 wireless communication antennas are radially arranged around the center of the base plate, and a central angle between any adjacent mobile communication antenna and wireless communication antenna is 45 °.
Preferably, the bottom plate is a double-sided PCB with metal layers covering the upper and lower surfaces thereof, the first radiating unit is a double-sided PCB with metal layers covering the two side surfaces thereof, the second radiating unit is a single-sided PCB with metal layers covering the surface facing one side of the bottom plate, and the wireless communication antenna is a single-sided PCB with metal layers covering the surface facing away from the first circumference.
Preferably, two side surfaces of the first radiating element have the same radiating arms and are connected through a via hole, the cross section of the radiating arm is 1/4 elliptical arc, the minor axis of the elliptical arc is parallel to the radial direction of the bottom plate, the major axis of the elliptical arc is parallel to the thickness direction of the bottom plate, and the feeding point of the mobile communication antenna is located at the vertex of the major axis of the elliptical arc.
Preferably, the wireless communication antenna is a monopole antenna, the GNSS antenna includes a passive antenna and a low noise amplification module, the passive antenna is mounted on the low noise amplification module, and the low noise amplification module is mounted on the support pillar.
Preferably, the antenna structure further includes a housing, the housing is a hollow cylindrical structure, and the housing is used for covering the bottom plate.
Preferably, the first radiating element extends along the radial direction by a first length and extends along the thickness direction of the bottom plate by a first height, the second radiating element extends along the radial direction by a second length and extends along the first circumferential direction by a second width, and the wireless communication antenna extends along the radial direction by a third length and extends along the thickness direction of the bottom plate by a second height, wherein the first length, the second length and the third length decrease progressively in sequence, the first height is greater than the second height, and the second width is smaller than the distance between the first radiating element and the wireless communication antenna extending along the first circumferential direction.
In another aspect, the embodiment of the present invention further provides a terminal, where the terminal is provided with the antenna structure as described above.
Compared with the prior art, the antenna structure provided by the embodiment of the utility model comprises a bottom plate, a positioning antenna, at least four mobile communication antennas, at least four wireless communication antennas and a feed unit, wherein the positioning antenna is arranged at the center of the bottom plate, the mobile communication antennas and the wireless communication antennas are uniformly distributed around the positioning antenna, the mobile communication antennas and the wireless communication antennas are arranged at intervals, and the positioning antennas, the mobile communication antennas and the wireless communication antennas are compactly arranged on the premise of non-interference, so that the mutual influence among the antennas is reduced, the antenna structure has the functions of mobile communication, wireless communication and positioning, can meet the requirements of being suitable for use in any country or region in the world, and has high positioning precision, compact antenna size and convenient installation.
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 some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic overall structure diagram of an antenna structure according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an internal structure of an antenna structure according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of Voltage Standing Wave Ratio (VSWR) of 4 5G antennas according to an embodiment of the present invention
FIG. 4 is a schematic impedance chart of 4 5G antennas according to an embodiment of the present invention;
FIG. 5 is a schematic Voltage Standing Wave Ratio (VSWR) diagram of 4 WiFi antennas according to an embodiment of the present invention;
fig. 6 is a schematic diagram illustrating isolation between 4 5G antennas and 4 WiFi antennas according to an embodiment of the present invention.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus, a repetitive description thereof will be omitted.
The words expressing the position and direction described in the present invention are illustrated in the accompanying drawings, but may be changed as required and still be within the scope of the present invention.
The serial numbers of the elements described in the present invention, such as "first", "second", etc., are used only for distinguishing the described objects, and do not have any sequence or technical meaning.
Referring to fig. 1 and fig. 2 together, fig. 1 is a schematic diagram of an overall structure of an antenna structure according to an embodiment of the present invention, and fig. 2 is a schematic diagram of an internal structure of the antenna structure according to an embodiment of the present invention.
The embodiment of the present invention provides an antenna structure 100, which includes a bottom plate 10, a positioning antenna 20, N mobile communication antennas 30, N wireless communication antennas 40, and a feeding unit 50.
The base plate 10 of this embodiment is circular, a through hole is formed at a central position of the base plate 10, and a support pillar (not shown) is disposed in the through hole, the support pillar preferably extends from a lower surface of the base plate 10 to protrude from an upper surface of the base plate 10, the support pillar is used for supporting the positioning antenna 20, and a central axis L1 of the positioning antenna 20 preferably passes through a center of the base plate 10. In this embodiment, the bottom plate 10 is a double-sided PCB board whose upper and lower surfaces are covered with metal layers.
The N mobile communication antennas 30 and the N wireless communication antennas 40 are alternately distributed on the upper surface of the bottom plate along a first circumferential direction D1 by taking a central axis L1 of the positioning antenna 20 as a central line, and 1 wireless communication antenna 40 is arranged between any two adjacent mobile communication antennas 30, wherein N is greater than or equal to 6 and is greater than or equal to 3, and N is an integer. Specifically, each mobile communication antenna 30 includes a first radiation unit 31 and a second radiation unit 32 each having a sheet shape, the first radiation unit 31 is disposed on the base plate 10 and extends in a radial direction, having a vertical plate shape, and the first radiation unit 31 is preferably vertically disposed on the base plate 10. The second radiation unit 32 extends from the top end of the first radiation unit 31 toward the first circumferential direction D1, and the second radiation unit 32 preferably extends from the top end of the first radiation unit 31 perpendicularly toward the first circumferential direction D1, i.e., the second radiation unit 32 is parallel to the bottom plate 10 and has a horizontal plate shape. Each wireless communication antenna 40 includes a third radiation element in a sheet shape, which is preferably vertically disposed on the base plate 10 and extends in a radial direction.
As described above, the positioning antenna 20 according to the embodiment of the present invention is disposed at the center of the bottom plate 10, the at least four mobile communication antennas 30 and the at least four wireless communication antennas 40 are alternately and radially distributed at intervals around the positioning antenna 20, and the mobile communication antenna 30 preferably includes two radiation units vertically connected to each other, wherein the second radiation unit 32 disposed in the transverse direction can improve the performance of the mobile communication antenna 30 in the low frequency band, and particularly, the second radiation unit 32 disposed in the transverse direction can greatly improve the performance in the low frequency band.
It will be appreciated that the above-mentioned centre may be the location of the geometric centre of the base plate 10. The geometric centers comprise the mathematical positions of a vertical center, a gravity center, an inner center, an outer center and the like, and in the same structure, the geometric centers can be coincident or non-coincident. Those skilled in the art can experimentally or empirically select a suitable design center axis L1 at or near the geometric center, and arrange the mobile communication antenna 30 and the wireless communication antenna 40 with reference to the center axis L1, which is not particularly limited in the embodiment of the present invention.
In addition, the positioning antenna 20, the mobile communication antenna 30 and the wireless communication antenna 40 are spaced apart from each other by a predetermined distance without interference. In the present embodiment, the N mobile communication antennas 30 and the N wireless communication antennas 40 are uniformly and alternately distributed on the upper surface of the bottom plate around the positioning antenna 20 along the first circumferential direction D1 with the central axis L1 as a central line, that is, the central angles between any adjacent mobile communication antennas 30 and wireless communication antennas 30 are the same or nearly the same. Moreover, the positioning antenna 20 extends from the upper surface of the base plate 10 along the thickness direction of the base plate 10 at least flush or approximately flush with the highest one of the N wireless communication antennas 40 and the N mobile communication antennas 30, in other words, the height at which the positioning antenna 20 is fixedly installed is equal to, slightly higher than, or slightly lower than the highest height of the mobile communication antennas 30 and the wireless communication antennas 40, so that the purpose of installing and fixing the positioning antenna 20 on the top of the antenna structure 100 is to reduce the influence of the rest of the antennas on the radiation patterns thereof, especially the influence on the low elevation angle performance, and further, to improve the phase center stability of the positioning antenna 20 and ensure the positioning accuracy of the positioning antenna 10.
The feeding unit 50 includes 2N +1 feeding lines connected with the radio frequency connection module, and the 2N +1 feeding lines are respectively connected with the positioning antenna 20, the N mobile communication antennas 30, and the N wireless communication antennas 40 in a one-to-one correspondence. In this embodiment, the feeder line is a coaxial line, and the rf connection module is specifically an rf connector. Preferably, the coaxial line can pass through the through hole of the bottom plate 10 to be connected with each antenna, and the length of the coaxial line is adjusted according to actual needs.
The structural design of the positioning antenna 20, the mobile communication antenna 30 and the wireless communication antenna 40 will be explained in more detail below. Specifically, the first radiation element 31 extends a first length along the radial direction of the base plate 10 and a first height along the thickness direction of the base plate 10, the second radiation element 32 extends a second length along the radial direction of the base plate 10 and a second width along the first circumferential direction D1, and the wireless communication antenna 40 extends a third length along the radial direction of the base plate 10 and a second height along the thickness direction of the base plate 10, wherein the first length, the second length and the third length decrease in sequence, the first height is greater than the second height, and the second width is smaller than the distance between the first radiation element 31 and the wireless communication antenna 40 extending along the first circumferential direction D1. Considering that the distance between each antenna and the through hole and the outer circumferential surface inside the chassis 10 needs to be reserved after the plurality of antennas are arranged, the radius of the chassis 10 may be adjusted according to the actual arrangement requirement, or the size of each antenna is designed according to the radius of the chassis 10, which is not limited in the present invention.
In this embodiment, the positioning antenna 20 is a GNSS antenna, and the GNSS antenna includes a passive antenna and a low noise amplification module, the passive antenna is mounted on the low noise amplification module, and the low noise amplification module is mounted on the support column. Specifically, the GNSS passive antenna is a single-feed-point ceramic dielectric antenna with the size of 35mm x 4mm, the ceramic dielectric antenna supports BDS, GPS and GLONASS frequency bands, and the voltage standing wave ratio is less than or equal to 2.0 in the working frequency band. The gain of the low noise amplifier is 30dB, and the noise coefficient is 1.5 dB. The purpose of the GNSS antenna mounting fixed to the top in the overall antenna structure arrangement is to reduce the effect of the remaining antennas on their radiation pattern, especially on low elevation performance.
In this embodiment, the mobile communication antenna 30 is a 5G antenna, and the radiation frequency band thereof is 600MHz-9GHz, which covers all the 5G frequency bands except the millimeter wave band currently around the world. Since the 5G antenna frequency band covers the WiFi frequency band, including the 2.4-2.5GHz, 5.15-5.85GHz and 5.925-7.125GHz frequency bands, the antennas can also be used as the WiFi antennas described below.
In this embodiment, the first radiation unit 31 is a double-sided PCB with two side surfaces covered with metal layers, and the second radiation unit 32 is a single-sided PCB with a surface facing the bottom plate 10 covered with metal layers. In addition, the two side surfaces of the first radiation unit 31 have the same radiation arms, and are connected through the via holes, the cross section of the radiation arm is 1/4 elliptical arc, the minor axis of the elliptical arc is parallel to the radial direction of the base plate 10, the major axis of the elliptical arc is parallel to the thickness direction of the base plate 10, and the feeding point of the mobile communication antenna 30 is located at the vertex of the major axis of the elliptical arc. Preferably, the first radiation unit 31 and the second radiation unit 32 are connected by welding. The effect of the transverse arrangement of the second radiating element 32 is to improve the performance of the antenna in the low frequency band.
In the present embodiment, the wireless communication antenna 40 is a WiFi antenna. The wireless communication antenna 40 is a single-sided PCB board with a metal layer covered on a surface of a side facing away from the first circumferential direction D1. Further, the WiFi antenna is a monopole antenna and supports two frequency bands, namely 2.4-2.5GHz and 5.15-5.85 GHz.
In the embodiment of the present invention, the material of the PCB is teflon (FR 4). The first circumferential direction D1 is a counterclockwise direction, but not limited to this, the configuration and layout of each antenna may be adjusted in a clockwise direction.
The antenna structure 100 of the embodiment of the present invention further includes a housing 60, where the housing 60 is a hollow cylindrical structure, and the housing 60 is used to cover the bottom plate 10. As shown in fig. 1, in the present embodiment, the housing 60 includes an upper cover and a lower cover, the upper cover is a cover structure, the lower cover forms a slot around the periphery of the bottom plate 10, and when the upper cover is inserted into the slot of the lower cover, the antenna structure 100 is in a closed state.
In the present embodiment, the N mobile communication antennas 30 are disposed in pairs, and each pair of mobile communication antennas is centered symmetrically with respect to the center of the base plate 10. Likewise, the N wireless communication antennas 40 are also provided in pairs, and each pair of wireless communication antennas 40 is centered symmetrically with respect to the center of the chassis 10. As shown in fig. 2, in the embodiment of the present invention, N takes a value of 4, that is, the antenna structure 100 includes 4 mobile communication antennas 30 and 4 wireless communication antennas 40, two pairs of mobile communication antennas 30 are respectively centered and symmetrical with respect to the center of the bottom plate 10, and two pairs of line communication antennas 40 are also respectively centered and symmetrical with respect to the center of the bottom plate 10. The antennas are evenly and alternately distributed around the center of the base plate 10, and are radially arranged from the center of the base plate 10 toward a direction away from the center of the base plate 10, and the central angle between any adjacent mobile communication antenna 30 and wireless communication antenna 30 is about 45 °. That is, the angle difference between the 5G antennas is about 90 degrees, and the angle difference between the WiFi antennas is also about 90 degrees.
As described above, the nine-in-one combined antenna in the embodiment of the present invention includes 4 full-band 5G antennas, 4 WiFi antennas, and 1 GNSS antenna, has mobile communication, wireless communication, and positioning functions, can be used in any country or region around the world, and is compact in size and very convenient to install and use. The following will illustrate the application effect of the nine-in-one combined antenna provided by the embodiment of the present invention.
In a specific implementation, the first radiating element 31 (vertical plate) of the 5G antenna has a size of 50 mm × 48 mm × 1.6 mm, the second radiating element 32 (horizontal plate) of the 5G antenna has a size of 30 mm × 1 mm, the WiFi antenna has a size of 41 mm × 15 mm × 1 mm, and the circular bottom plate 10 has a size of radius of 80 mm and a thickness of 1 mm. The antenna structure 100 is generally circular truncated cone shaped with a bottom diameter of 160 mm, a top diameter of 150 mm, and a height of 55 mm for the housing 60.
It can be understood that the shape and size of the antenna structure may be appropriately adjusted according to the performance requirement of the antenna, and the embodiment of the present invention is not limited thereto.
The test performance of the embodiment of the present invention is described below with reference to fig. 3 to 6. Fig. 3 is a schematic Voltage Standing Wave Ratio (VSWR) diagram of 4 5G antennas according to an embodiment of the present invention, fig. 4 is a schematic impedance circle diagram of 4 5G antennas according to an embodiment of the present invention, fig. 5 is a schematic Voltage Standing Wave Ratio (VSWR) diagram of 4 WiFi antennas according to an embodiment of the present invention, and fig. 6 is a schematic isolation diagram between 4 5G antennas and 4 WiFi antennas according to an embodiment of the present invention. As can be seen from FIG. 3, the Voltage Standing Wave Ratio (VSWR) is less than or equal to 3.5 within 600MHz-824MHz, the Voltage Standing Wave Ratio (VSWR) is less than or equal to 3.0 within 824MHz-960MHz, the Voltage Standing Wave Ratio (VSWR) is less than or equal to 2.5 within 960MHz-2690MHz, and the Voltage Standing Wave Ratio (VSWR) is less than or equal to 2.0 within 2690MHz-9000 MHz. As shown in FIG. 5, in the frequency band of 2.4-2.5GHz, the Voltage Standing Wave Ratio (VSWR) is less than or equal to 2.0, and in the frequency band of 5.15-5.85GHz, the Voltage Standing Wave Ratio (VSWR) is less than or equal to 2.5. As shown in FIG. 6, in the 600MHz-700MHz band, the isolation between the antennas is 9-10dB, in the 700MHz-9000MHz band, the isolation between the antennas is greater than 10dB, and the isolation between 4 WiFi antennas and between 4 5G antennas is greater than 20 dB. Therefore, the antenna structure provided by the embodiment of the utility model has good antenna electrical performance in the working frequency band, and has better voltage standing wave ratio and isolation.
The embodiment of the present invention further provides a terminal, which includes the antenna structure described in the embodiment of the present invention, and the detailed description of the antenna structure may refer to the description of other embodiments of the present invention, which is not described herein again.
In summary, the antenna structure of the embodiment of the present invention includes a bottom plate, a positioning antenna, at least four mobile communication antennas, at least four wireless communication antennas, and a feeding unit, wherein the positioning antenna is disposed at the center of the bottom plate, the mobile communication antennas and the wireless communication antennas are uniformly distributed around the positioning antenna, and the mobile communication antennas and the wireless communication antennas are spaced apart from each other, and are compactly arranged on the premise that the positioning antenna, the mobile communication antennas, and the wireless communication antennas do not interfere with each other, thereby reducing mutual influence among the antennas, so that the antenna structure has mobile communication, wireless communication, and positioning functions, and can meet the requirements of being applicable to any country or region around the world, and has high positioning accuracy, compact size of the antenna, and convenient installation.
Although embodiments of the present invention have been shown and described, it will be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that those skilled in the art can make changes, modifications, substitutions and alterations to the above embodiments without departing from the spirit and scope of the present invention, all of which shall fall within the scope of the appended claims.
Claims (11)
1. An antenna structure, comprising:
the middle part of the bottom plate is provided with a support column;
the positioning antenna is arranged on the supporting column;
the N mobile communication antennas are arranged on the upper surface of the bottom plate along the first circumferential direction in a surrounding mode, each mobile communication antenna comprises a first radiating unit and a second radiating unit which are both flaky, the first radiating unit is arranged on the bottom plate and extends along the radial direction, and the second radiating unit extends from the top end of the first radiating unit towards the first circumferential direction;
n wireless communication antennas, wherein N is more than or equal to 6 and more than or equal to 3, N is an integer, the N wireless communication antennas and the N mobile communication antennas are alternately distributed on the upper surface of the bottom plate along the first circumference by taking the central axis of the positioning antenna as a central line, 1 wireless communication antenna is arranged between any two adjacent mobile communication antennas, each wireless communication antenna comprises a third flaky radiation unit, and the third radiation unit is arranged on the bottom plate and extends along the radial direction; and
the feeding unit comprises 2N +1 feeder lines connected with the radio frequency connection module, and the 2N +1 feeder lines are respectively connected with the positioning antenna, the N mobile communication antennas and the N wireless communication antennas in a one-to-one correspondence manner;
wherein, the positioning antenna, the N mobile communication antennas and the N wireless communication antennas are arranged at intervals.
2. The antenna structure of claim 1, wherein the bottom plate has a through hole at a central position thereof, the supporting post extends from the lower surface of the bottom plate through the through hole to protrude from the upper surface of the bottom plate, and the central axis of the positioning antenna passes through the center of the bottom plate;
the first radiation unit is vertically arranged on the bottom plate and extends along the radial direction, the second radiation unit extends from the top end of the first radiation unit to the first circumferential direction and is perpendicular to the first radiation unit, and the third radiation unit is vertically arranged on the bottom plate and extends along the radial direction;
the N wireless communication antennas and the N mobile communication antennas are uniformly and alternately distributed on the bottom plate along the first circumference by taking the central axis of the positioning antenna as a central line;
the positioning antenna is at least flush with the highest one of the N wireless communication antennas and the N mobile communication antennas along the thickness direction of the bottom plate from the upper surface of the bottom plate.
3. The antenna structure of claim 1, wherein the positioning antenna is a GNSS antenna; the mobile communication antenna is a 5G antenna, and the radiation frequency band is 600MHz-9 GHz; the wireless communication antenna is a WiFi antenna.
4. The antenna structure of claim 3, wherein the N mobile communication antennas are arranged in pairs, and each pair of mobile communication antennas is centered symmetrically with respect to the center of the chassis; the N wireless communication antennas are arranged in pairs, and each pair of wireless communication antennas is in central symmetry with respect to the center of the bottom plate.
5. The antenna structure according to claim 4, wherein N-4, 4 mobile communication antennas and 4 wireless communication antennas are radially arranged around the center of the chassis, and a central angle between any adjacent mobile communication antenna and wireless communication antenna is 45 °.
6. The antenna structure of claim 3, wherein the bottom board is a double-sided PCB with metal layers covering the upper and lower surfaces thereof, the first radiating element is a double-sided PCB with metal layers covering both sides thereof, the second radiating element is a single-sided PCB with metal layers covering the surface thereof facing the side of the bottom board, and the wireless communication antenna is a single-sided PCB with metal layers covering the surface thereof facing away from the first circumferential direction.
7. The antenna structure according to claim 6, wherein the first radiating element has identical radiating arms on both sides and is connected through a via, the radiating arms have a cross-section of 1/4 elliptical arcs, the minor axes of the elliptical arcs are parallel to the radial direction of the chassis, the major axes of the elliptical arcs are parallel to the thickness direction of the chassis, and the feeding point of the mobile communication antenna is located at the apex of the major axes of the elliptical arcs.
8. The antenna structure of claim 3, wherein the wireless communication antenna is a monopole antenna, the GNSS antenna comprises a passive antenna and a low noise amplification module, the passive antenna is mounted on the low noise amplification module, and the low noise amplification module is mounted on the support post.
9. The antenna structure of claim 1, further comprising a housing, wherein the housing is a hollow cylindrical structure, and the housing is adapted to cover the bottom plate.
10. The antenna structure of claim 1, wherein the first radiating element extends along the radial direction by a first length and extends along the thickness direction of the base plate by a first height, the second radiating element extends along the radial direction by a second length and extends along the first circumference by a second width, the wireless communication antenna extends along the radial direction by a third length and extends along the thickness direction of the base plate by a second height, wherein the first length, the second length and the third length decrease in sequence, the first height is greater than the second height, and the second width is less than the distance between the first radiating element and the wireless communication antenna extending along the first circumference.
11. A terminal, characterized in that the terminal comprises an antenna arrangement according to any of claims 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123377583.4U CN216903367U (en) | 2021-12-29 | 2021-12-29 | Antenna structure and terminal |
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| CN202123377583.4U CN216903367U (en) | 2021-12-29 | 2021-12-29 | Antenna structure and terminal |
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| CN216903367U true CN216903367U (en) | 2022-07-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114188732A (en) * | 2021-12-29 | 2022-03-15 | 常州柯特瓦电子股份有限公司 | Antenna structure and terminal |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114188732A (en) * | 2021-12-29 | 2022-03-15 | 常州柯特瓦电子股份有限公司 | Antenna structure and terminal |
| CN114188732B (en) * | 2021-12-29 | 2024-06-04 | 常州柯特瓦电子股份有限公司 | Antenna structure and terminal |
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