5G full-band external antenna

Abstract

The utility model discloses a 5G full-band external antenna, and the antenna comprises an antenna substrate; the first antenna unit is arranged on the antenna substrate and comprises a plurality of radiators; the second antenna unit is arranged on the antenna substrate and comprises a plurality of radiators; the shell is used for wrapping the antenna substrate; the connector is used for connecting the 5G full-band external antenna and a terminal; wherein the plurality of radiators of the first antenna unit are suitable for being coupled with the plurality of radiators of the second antenna unit through resonance, so that the 5G full-band external antenna is switched to a target communication frequency band. Therefore, through the resonance and mutual coupling of the plurality of radiators of the first antenna unit and the plurality of radiators of the second antenna unit on the antenna substrate, the frequency requirements of a plurality of communication frequency bands can be met, so that the convenience and applicability of the 5G full-band external antenna are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of antennas, in particular to a 5G full-band external antenna. Background Art

[0002] Nowadays, 5G, as the latest generation of cellular mobile communication technology, is characterized by large-capacity and high-rate data transmission. In order to meet the requirements of large-capacity and high-rate data transmission, the frequency range of antenna use is usually 0.6 - 6 GHz, commonly known as the full band. However, as the number of frequency bands supported by the antenna increases and the coverage frequency range becomes wider, there is an urgent need for a new type of 5G full-band external antenna. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems in the related art to some extent. For this purpose, an object of the utility model is to provide a 5G full-band external antenna, which can meet the frequency requirements of multiple communication frequency bands, thereby improving the convenience and applicability of the 5G full-band external antenna.

[0004] To achieve the above object, the 5G full-band external antenna proposed by the utility model includes: an antenna substrate; a first antenna unit disposed on the antenna substrate, the first antenna unit including a plurality of radiators; a second antenna unit disposed on the antenna substrate, the second antenna unit including a plurality of radiators; a housing for wrapping the antenna substrate; and a connector for connecting the 5G full-band external antenna to a terminal. Among them, the plurality of radiators of the first antenna unit are adapted to resonate and mutually couple with the plurality of radiators of the second antenna unit to switch the 5G full-band external antenna to a target communication frequency band.

[0005] According to the 5G full-band external antenna of the utility model, through the resonance and mutual coupling of the plurality of radiators of the first antenna unit and the plurality of radiators of the second antenna unit on the antenna substrate, the frequency requirements of multiple communication frequency bands can be met, thereby improving the convenience and applicability of the 5G full-band external antenna.

[0006] In addition, according to the 5G full-band external antenna of the utility model described above, it may also have the following additional technical features:

[0007] In some examples, the antenna substrate has opposite first and second sides in the length direction, the first antenna unit is disposed on the first side, and the second antenna unit is disposed on the second side.

[0008] In some examples, the first antenna unit includes a first radiator, a second radiator, a third radiator, and a fourth radiator, wherein, in the direction from the first side to the second side, the first radiator, the second radiator, the third radiator, and the fourth radiator are connected in sequence.

[0009] In some examples, the second antenna unit includes a fifth radiator, a sixth radiator, a seventh radiator, an eighth radiator, a ninth radiator, and a tenth radiator, wherein, in the direction from the first side to the second side, the fifth radiator, the sixth radiator, and the seventh radiator are connected in sequence, and, in the direction from the second side to the first side, the tenth radiator, the ninth radiator, and the eighth radiator are connected in sequence.

[0010] In some examples, the target communication frequency band is 0.6 - 6 GHz; wherein, the first radiator, the second radiator, the third radiator, and the fourth radiator are configured to generate resonance at 0.6 - 0.96 GHz through quarter-wave impedance transformation and self-quarter-wavelength resonance; the fifth radiator, the seventh radiator, the eighth radiator, and the tenth radiator are configured to generate resonance at 1.71 - 2.69 GHz through self-quarter-wavelength resonance and mutual coupling resonance; the sixth radiator and the ninth radiator are configured to generate resonance at 3.3 - 5.0 GHz through self-quarter-wavelength resonance and mutual coupling resonance.

[0011] In some examples, the connector is an SMA connector.

[0012] In some examples, the antenna further includes: an antenna coaxial cable, which is used to connect the antenna substrate and the SMA connector.

[0013] In some examples, the antenna substrate includes a first pad and a second pad, and the antenna coaxial cable is welded to the first pad through a first solder joint and welded to the second pad through a second solder joint.

[0014] In some examples, a first matching circuit and a second matching circuit are further provided on the antenna substrate, and the SMA connector is electrically connected to the first pad through the first matching circuit and electrically connected to the second pad through the second matching circuit.

[0015] In some examples, at least one heat dissipation through hole is further provided on the antenna substrate.

[0016] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0017] Figure 1 It is a block diagram of a 5G full-band external antenna according to an embodiment of the present utility model;

[0018] Figure 2 It is one of the structural diagrams of a 5G full-band external antenna according to a specific embodiment of the present utility model;

[0019] Figure 3 It is the second structural diagram of a 5G full-band external antenna according to a specific embodiment of the present utility model;

[0020] Figure 4 It is the third structural diagram of a 5G full-band external antenna according to a specific embodiment of the present utility model;

[0021] Figure 5 It is the standing wave ratio curve graph of a 5G full-band external antenna according to an embodiment of the present utility model;

[0022] Figure 6 It is the return loss curve graph of a 5G full-band external antenna according to an embodiment of the present utility model;

[0023] Figure 7 It is the efficiency curve graph of a 5G full-band external antenna according to an embodiment of the present utility model;

[0024] Figure 8 It is the average gain curve graph of a 5G full-band external antenna according to an embodiment of the present utility model;

[0025] Figure 9 It is the peak gain curve graph of a 5G full-band external antenna according to an embodiment of the present utility model. Detailed implementation manners

[0026] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as limiting the present utility model.

[0027] The 5G full-band external antenna according to the embodiment of the present utility model will be described below with reference to the drawings.

[0028] Figure 1 It is a block diagram of a 5G full-band external antenna according to an embodiment of the present utility model.

[0029] Specifically, in some embodiments of the present utility model, such as Figure 1As shown in the figure, the 5G full-band external antenna 1000 includes: an antenna substrate 101, a first antenna unit 102, a second antenna unit 103, a housing 104, and a connector 105.

[0030] Specifically, in this embodiment of the present invention, the first antenna unit 102 is disposed on the antenna substrate 101, and the first antenna unit 102 includes a plurality of radiators; the second antenna unit 103 is disposed on the antenna substrate 101, and the second antenna unit 103 includes a plurality of radiators; the housing 104 is used to wrap the antenna substrate 101; the connector 105 is used to connect the 5G full-band external antenna 1000 to a terminal; wherein, the plurality of radiators of the first antenna unit 102 are adapted to resonate and mutually couple with the plurality of radiators of the second antenna unit 103, so that the 5G full-band external antenna 1000 switches to a target communication band.

[0031] It can be understood that, in this embodiment of the present invention, as Figure 2 shown, the antenna substrate 101 can be wrapped by the housing 104 to protect the antenna substrate 101 and the first antenna unit 102 and the second antenna unit 103 integrated on the antenna substrate 101, and the 5G full-band external antenna 1000 can be connected to the terminal through the connector 105, so that the terminal can achieve full-band communication with the help of the 5G full-band external antenna 1000. Among them, the 5G full-band external antenna 1000 can switch to the target communication band through the resonance and mutual coupling of the plurality of radiators of the first antenna unit 102 and the plurality of radiators of the second antenna unit 103.

[0032] Furthermore, in some embodiments of the present invention, as Figure 3 shown, the antenna substrate 101 has opposite first side A and second side B in the length direction, the first antenna unit 102 is disposed on the first side A, and the second antenna unit 103 is disposed on the second side B.

[0033] It can be understood that, in this embodiment of the present invention, by disposing the first antenna unit 102 on the first side A of the antenna substrate 101 and disposing the second antenna unit 103 on the second side B of the antenna substrate 101, thereby, through the resonance and mutual coupling of the plurality of radiators of the first antenna unit 102 and the plurality of radiators of the second antenna unit 103, the 5G full-band external antenna 1000 of the embodiment of the present invention can generate an omnidirectional radiation wave covering the target communication band, thereby achieving an effect with a standing wave ratio below 3 and an efficiency above 30%.

[0034] Further, in some embodiments of the present invention, the first antenna unit 102 includes a first radiator 1, a second radiator 2, a third radiator 3, and a fourth radiator 4. Among them, in the direction from the first side A to the second side B, the first radiator 1, the second radiator 2, the third radiator 3, and the fourth radiator 4 are connected in sequence.

[0035] It can be understood that in this embodiment of the present invention, as Figure 3 shown, in the order of the first radiator 1, the second radiator 2, the third radiator 3, and the fourth radiator 4, the first radiator 1, the second radiator 2, the third radiator 3, and the fourth radiator 4 are sequentially arranged along the direction from the first side A to the second side B of the antenna substrate 101.

[0036] Further, in some embodiments of the present invention, the second antenna unit 103 includes a fifth radiator 5, a sixth radiator 6, a seventh radiator 7, an eighth radiator 8, a ninth radiator 9, and a tenth radiator 10. Among them, in the direction from the first side A to the second side B, the fifth radiator 5, the sixth radiator 6, and the seventh radiator 7 are connected in sequence, and, in the direction from the second side B to the first side A, the tenth radiator 10, the ninth radiator 9, and the eighth radiator 8 are connected in sequence.

[0037] It can be understood that in this embodiment of the present invention, as Figure 3 shown, in the order of the fifth radiator 5, the sixth radiator 6, and the seventh radiator 7, the fifth radiator 5, the sixth radiator 6, and the seventh radiator 7 are sequentially arranged along the direction from the first side A to the second side B of the antenna substrate 101, and, in the order of the tenth radiator 10, the ninth radiator 9, and the eighth radiator 8, the tenth radiator 10, the ninth radiator 9, and the eighth radiator 8 are sequentially arranged along the direction from the second side B to the first side A of the antenna substrate 101. Specifically, the fifth radiator 5 and the eighth radiator 8 are symmetrically arranged with respect to the center of the antenna substrate 101, the sixth radiator 6 and the ninth radiator 9 are symmetrically arranged on both sides of the antenna substrate 101 with respect to the center of the antenna substrate 101, and the seventh radiator 7 and the tenth radiator 10 are symmetrically arranged on both sides of the antenna substrate 101 with respect to the center of the antenna substrate 101.

[0038] Further, in some embodiments of the present invention, the target communication frequency band is 0.6 - 6 GHz; wherein, the first radiator 1, the second radiator 2, the third radiator 3, and the fourth radiator 4 are configured to generate resonance at 0.6 - 0.96 GHz through quarter-wave impedance transformation and self-quarter-wavelength resonance; the fifth radiator 5, the seventh radiator 7, the eighth radiator 8, and the tenth radiator 10 are configured to generate resonance at 1.71 - 2.69 GHz through self-quarter-wavelength resonance and mutual coupling resonance; the sixth radiator 6 and the ninth radiator 9 are configured to generate resonance at 3.3 - 5.0 GHz through self-quarter-wavelength resonance and mutual coupling resonance.

[0039] Optionally, in this embodiment of the present invention, the target communication frequency band can be the full frequency band, specifically 0.6 to 6.0 GHz. Thus, the 5G full-band external antenna 1000 can meet the frequency requirements of multiple communication frequency bands, thereby improving the convenience and applicability of the 5G full-band external antenna.

[0040] Specifically, in the above embodiments of the present invention, the first radiator 1, the second radiator 2, the third radiator 3, and the fourth radiator 4 can generate resonance at 0.6 - 0.96 GHz through quarter-wave impedance transformation and self-quarter-wavelength resonance; the fifth radiator 5, the seventh radiator 7, the eighth radiator 8, and the tenth radiator 10 can generate resonance at 1.71 - 2.69 GHz through self-quarter-wavelength resonance and mutual coupling resonance; the sixth radiator 6 and the ninth radiator 9 are configured to generate resonance at 3.3 - 5.0 GHz through self-quarter-wavelength resonance and mutual coupling resonance. Thus, the 5G full-band external antenna 1000 can operate in the full frequency band of 0.6 to 6.0 GHz.

[0041] The following is a corresponding description of the quarter-wave impedance transformation principle and the self-quarter-wavelength resonance principle adopted in the above embodiments of the present invention:

[0042] The quarter-wave impedance transformation is an impedance matching method, which is composed of a transmission line with an impedance of z01 and a length of where λ0 is the phase wavelength corresponding to the center frequency of the signal transmitted by the transmission line, and is related to factors such as the signal frequency f0, the structure of the transmission line, and the filling medium. The working principle of this quarter-wave impedance transformation is based on the phase delay and impedance transformation characteristics of the transmission line to achieve impedance matching at a specific frequency, thereby improving the transmission efficiency and system performance.

[0043] In addition, the self-quarter-wavelength resonance is determined according to the wavelength of the center operating frequency. The wavelength and frequency are in an inverse relationship, and the calculation formula is: wavelength (unit: meter) = 300 / frequency (unit: MHz); among them, the length of the antenna is proportional to the wavelength and inversely proportional to the frequency. The higher the frequency, the shorter the wavelength.

[0044] Thus, in this embodiment of the present invention, the first antenna unit 102 can perform a quarter impedance transformation and self-quarter-wavelength resonance through the first radiator 1, the second radiator 2, the third radiator 3, and the fourth radiator 4 to generate a resonance of 0.6 - 0.96 GHz.

[0045] In addition, compared with the traditional antenna design, in the embodiment of the present invention, a sixth radiator 6 and a ninth radiator 9 are added to the second antenna unit 103 to provide an additional resonance of 3.3 - 5.0 GHz by increasing specific branches for self-resonance and mutual coupling resonance. Among them, antenna self-resonance refers to resonance through the length of its own branches, and antenna mutual coupling resonance refers to the ability of antenna branches to mutually couple to generate new resonances.

[0046] Thus, in this embodiment of the present invention, the second antenna unit 103 can perform self-quarter-wavelength resonance and mutual coupling resonance through the sixth radiator 6 and the ninth radiator 9 to generate a resonance of 3.3 - 5.0 GHz.

[0047] Furthermore, in some embodiments of the present invention, the connector 105 is an SMA connector.

[0048] It can be understood that in this embodiment of the present invention, the 5G full-band external antenna 1000 can be connected to the test terminal through the SMA connector, thereby testing the antenna performance of the 5G full-band external antenna 1000.

[0049] Furthermore, in some embodiments of the present invention, as Figure 4 shown, the 5G full-band external antenna 1000 further includes: an antenna coaxial cable 106, and the antenna coaxial cable 106 is used to connect the antenna substrate 101 and the SMA connector.

[0050] It can be understood that in this embodiment of the present invention, the antenna coaxial cable 106 can play a role in connecting the antenna substrate 101 and the SMA connector, ensuring the effective transmission of signals and anti-interference ability between the antenna substrate 101 and the SMA connector, thereby improving the test accuracy of the antenna performance.

[0051] Furthermore, in some embodiments of the present invention, as Figure 3As shown, the antenna substrate 101 includes a first pad 107 and a second pad 108. The antenna coaxial cable 106 is welded to the first pad 107 through a first solder joint and welded to the second pad 108 through a second solder joint.

[0052] It can be understood that in this embodiment of the present invention, the antenna substrate 101 is further provided with a first pad 107 and a second pad 108. At this time, the antenna coaxial cable 106 can be welded to the first pad 107 through a first solder joint to realize the connection between the antenna coaxial cable 106 and the first antenna unit 102. Similarly, the antenna coaxial cable 106 can also be welded to the second pad 108 through a second solder joint to realize the connection between the antenna coaxial cable 106 and the second antenna unit 103.

[0053] Furthermore, in some embodiments of the present invention, a first matching circuit and a second matching circuit are further provided on the antenna substrate 101. The SMA connector is electrically connected to the first pad through the first matching circuit and electrically connected to the second pad through the second matching circuit.

[0054] It can be understood that in this embodiment of the present invention, the resonance of the first antenna unit 102 can be adjusted through the first matching circuit, and the resonance of the second antenna unit 103 can be adjusted through the second matching circuit, so that the 5G full-band external antenna 1000 can adapt to different usage scenarios. Among them, the first matching circuit and the second matching circuit can be formed by combining one or more of capacitors, inductors, and resistors in series and parallel, and can be reasonably set according to actual needs.

[0055] Specifically, as Figures 5 to 9 shown, through testing, the 5G full-band external antenna 1000 of the embodiment of the present invention can achieve a standing wave ratio below 3, and at the same time, the efficiency reaches more than 30%, so as to provide a high-performance 5G full-band external antenna 1000.

[0056] Furthermore, in some embodiments of the present invention, at least one heat dissipation through hole is further provided on the antenna substrate 101.

[0057] Optionally, in this embodiment of the present invention, at least one heat dissipation through hole is further provided on the antenna substrate 101. The heat dissipation through hole penetrates from the top surface of the antenna substrate 101 to the bottom surface of the antenna substrate. Thus, heat dissipation can be improved through the heat dissipation through hole.

[0058] In summary, for the 5G full-band external antenna according to the embodiment of the present invention, through the resonance and mutual coupling of the multiple radiators of the first antenna unit and the multiple radiators of the second antenna unit on the antenna substrate, the frequency requirements of multiple communication bands can be met, thereby improving the convenience and applicability of the 5G full-band external antenna.

[0059] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0060] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0061] In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0062] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0063] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0064] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present utility model.

Claims

1. A 5G full-band external antenna, characterized in that: The antenna comprises: Antenna substrate; A first antenna unit disposed on the antenna substrate, wherein the first antenna unit includes a plurality of radiators; A second antenna unit disposed on the antenna substrate, wherein the second antenna unit includes a plurality of radiators; A shell, wherein the shell is used to wrap the antenna substrate; A connector, wherein the connector is used to connect the 5G full-band external antenna to the terminal; Among them, the multiple radiators of the first antenna unit are suitable for resonating and coupling with the multiple radiators of the second antenna unit, so that the 5G full-band external antenna can be switched to the target communication frequency band.

2. The 5G full-band external antenna according to claim 1, characterized in that: The antenna substrate has a first side and a second side opposite to each other in a length direction. The first antenna unit is disposed on the first side, and the second antenna unit is disposed on the second side.

3. The 5G full-band external antenna according to claim 2, characterized in that: The first antenna unit includes a first radiator, a second radiator, a third radiator and a fourth radiator, wherein the first radiator, the second radiator, the third radiator and the fourth radiator are connected in sequence in a direction from the first side to the second side.

4. The 5G full-band external antenna according to claim 3, characterized in that: The second antenna unit includes a fifth radiator, a sixth radiator, a seventh radiator, an eighth radiator, a ninth radiator and a tenth radiator, wherein in the direction from the first side to the second side, the fifth radiator, the sixth radiator and the seventh radiator are connected in sequence, and in the direction from the second side to the first side, the tenth radiator, the ninth radiator and the eighth radiator are connected in sequence.

5. The 5G full-band external antenna according to claim 4, characterized in that: The target communication frequency band is 0.6-6GHz; wherein, The first radiator, the second radiator, the third radiator and the fourth radiator are configured to generate a resonance of 0.6-0.96 GHz through a quarter impedance transformation and a quarter wavelength resonance of the self; The fifth radiator, the seventh radiator, the eighth radiator and the tenth radiator are configured to generate resonance of 1.71-2.69 GHz through self-quarter wavelength resonance and mutual coupling resonance; The sixth radiator and the ninth radiator are configured to generate resonance at 3.3-5.0 GHz through self-quarter wavelength resonance and mutual coupling resonance.

6. The 5G full-band external antenna according to claim 1, characterized in that: The connector is a SMA connector.

7. The 5G full-band external antenna according to claim 6, characterized in that: The antenna also includes: The antenna coaxial line is used to connect the antenna substrate and the SMA connector.

8. The 5G full-band external antenna according to claim 7, characterized in that: The antenna substrate includes a first soldering pad and a second soldering pad. The antenna coaxial line is soldered to the first soldering pad via a first soldering point and is soldered to the second soldering pad via a second soldering point.

9. The 5G full-band external antenna according to claim 8, characterized in that: A first matching circuit and a second matching circuit are also provided on the antenna substrate. The SMA connector is electrically connected to the first pad via the first matching circuit and is electrically connected to the second pad via the second matching circuit.

10. The 5G full-band external antenna according to claim 1, characterized in that: At least one heat dissipation through hole is also arranged on the antenna substrate.

Images