CN112952354A - Antenna module and electronic equipment - Google Patents
Antenna module and electronic equipment Download PDFInfo
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- CN112952354A CN112952354A CN201911258570.XA CN201911258570A CN112952354A CN 112952354 A CN112952354 A CN 112952354A CN 201911258570 A CN201911258570 A CN 201911258570A CN 112952354 A CN112952354 A CN 112952354A
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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
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
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Abstract
The present disclosure relates to an antenna module and an electronic device, the antenna module includes: the antenna comprises a control circuit, a main antenna radiator, a first 5G antenna radiator and a second 5G antenna radiator. The control circuit, the main antenna radiator, the first 5G antenna radiator and the second 5G antenna radiator are arranged for the antenna module, the first distance and the second distance are limited to respectively account for 5% -25% of the length of the main antenna radiator, and therefore the isolation among the main antenna radiator, the first 5G antenna radiator and the second 5G antenna radiator and the antenna performance of the antenna module and the electronic device using the antenna module are improved.
Description
Technical Field
The present disclosure relates to the field of electronic technologies, and in particular, to an antenna module and an electronic device.
Background
5G (5th Generation mobile networks, 5th Generation with less systems, 5th-Generation, fifth Generation mobile communication technology) is the latest Generation cellular mobile communication technology, and is also an extension following 4G (4th-Generation, fourth Generation mobile communication technology), 3G (3th-Generation, third Generation mobile communication technology), and 2G (2th-Generation, second Generation mobile communication technology). The 5G communication can improve the data rate, reduce the delay, save energy, reduce the cost, improve the system capacity and realize the connection with large-scale equipment.
In the related art, an electronic device such as a mobile phone generally includes both a 5G antenna and a main antenna that implements 2G, 3G, and 4G functions. However, in the use process of various antennas, due to the limitations in terms of assembly space, antenna structure, and the like, there is a problem of mutual interference between antennas, which affects the isolation and use performance between antennas.
Disclosure of Invention
The present disclosure provides an antenna module and an electronic device, so as to increase the isolation between each antenna of the antenna module and improve the performance of each antenna.
According to a first aspect of the present disclosure, an antenna module is assembled to an electronic device, the antenna module includes: the antenna comprises a control circuit, and a main antenna radiator, a first 5G antenna radiator and a second 5G antenna radiator which are electrically connected to the control circuit;
the main antenna radiator comprises a first end and a second end which are positioned at two sides of the main antenna radiator;
the first 5G antenna radiator is arranged on one side close to the first end and comprises a third end close to the first end; the first end and the third end are separated by a first distance; the first distance accounts for 5% -25% of the length of the main antenna radiator;
the second 5G antenna radiator is arranged on one side close to the second end and comprises a fourth end close to the second end; the second end and the fourth end are a second distance apart; the second distance accounts for 5% -25% of the length of the main antenna radiator.
Optionally, the main antenna radiator includes a first radiation section, a second radiation section, and a third radiation section, the first radiation section is disposed between the second radiation section and the third radiation section, the first end is located on the second radiation section, and the second end is located on the third radiation section.
Optionally, the length range of the first radiation section includes: 46.5mm-50 mm; the length range of the second radiating section includes: 6.8mm-10 mm; the third radial segment length range includes: 7mm-10 mm.
Optionally, the range of the first distance includes: 3mm-18 mm; the range of the second distance includes: 3mm-18 mm.
Optionally, the main antenna radiator is provided with a first feed point and at least one ground point, the first 5G antenna radiator is provided with a second feed point, and the second 5G antenna radiator is provided with a third feed point; the control circuit is respectively electrically connected with the grounding point, the first feeding point, the second feeding point and the third feeding point, and the control circuit comprises at least one tuning element so as to adjust the antenna performance of the main antenna radiator, the first 5G antenna radiator and the second 5G antenna radiator through the tuning element.
Optionally, the main antenna radiator includes a first radiation section, a second radiation section, and a third radiation section, and the first radiation section is disposed between the second radiation section and the third radiation section; the first feeding point is disposed in a middle region of the first radiating section.
Optionally, two grounding points are disposed on the main antenna radiator, wherein one grounding point is disposed between the first feeding point and an end point of the first radiating section near the second radiating section, and the other grounding point is disposed on the third radiating section.
Optionally, the first 5G antenna radiator includes a fourth radiation segment and a fifth radiation segment, and the third end is located on the fourth radiation segment; the second 5G antenna radiator includes a sixth radiation segment and a seventh radiation segment, and the fourth end is located on the sixth radiation segment.
Optionally, the length range of the fourth radiation section includes: 10mm-12 mm; the length range of the fifth radiation segment comprises: 6mm-8 mm; the second feeding point is disposed on the fourth radiation segment, and the second feeding point is spaced from the third end by a third distance, where the range of the third distance includes: 5.5mm-6.5 mm;
the length range of the sixth radiating section includes: 11mm-15mm, the length of the seventh radiating section ranging from: 5mm-9 mm; the third feeding point is disposed on the sixth radiating segment, and the third feeding point is spaced from the fourth end by a fourth distance, where the range of the fourth distance includes: 6.5mm-7.5 mm.
Optionally, the main antenna radiator includes a first radiation section, a second radiation section, and a third radiation section, the first radiation section is disposed between the second radiation section and the third radiation section, the first end is located on the second radiation section, and the second end is located on the third radiation section; the first 5G antenna radiator comprises a fourth radiation section and a fifth radiation section, and the third end is positioned on the fourth radiation section; the second 5G antenna radiator comprises a sixth radiation segment and a seventh radiation segment, and the fourth end is located on the sixth radiation segment;
the length of the first radiation section is 49mm, the length of the second radiation section is 6.8mm, and the length of the third radiation section is 7.7 mm; the length of the fourth radiation section is 11mm, and the length of the fifth radiation section is 6.3 mm; the length of the sixth radiation section is 13mm, and the length of the seventh radiation section is 7.7 mm; the length of the first distance is 8mm, and the length of the second distance is 6.5 mm.
Optionally, the antenna module further includes at least one first ground element, where the first ground element is fitted to the screen of the electronic device and is disposed on one side of the main antenna radiator along the length direction of the main antenna radiator.
Optionally, the antenna module further includes at least one second ground element and at least one third ground element, where the second ground element and the third ground element are respectively fitted to the screen of the electronic device, the second ground element is disposed on one side of the first 5G antenna radiator along a length direction of the first 5G antenna radiator, and the third ground element is disposed on one side of the second 5G antenna radiator along a length direction of the second 5G antenna radiator.
Optionally, the parameter for measuring the performance of the antenna includes at least one of return loss, ideal efficiency and actual efficiency of the antenna.
According to a second aspect of the present disclosure, an electronic device is provided, which includes a device body and the antenna module, wherein the antenna module is assembled to the device body.
Optionally, the device body includes a metal middle frame, the main antenna radiator is a first portion of the metal middle frame, the first 5G antenna radiator is a second portion of the metal middle frame, and the second 5G antenna radiator is a third portion of the metal middle frame; the metal center includes top, bottom and connection the top with two lateral parts of bottom, main antenna radiator sets up top or bottom, first 5G antenna radiator sets up one on the lateral part, second 5G antenna radiator sets up another on the lateral part.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
according to the antenna module, the control circuit, the main antenna radiator, the first 5G antenna radiator and the second 5G antenna radiator are arranged, the first distance and the second distance are limited to be 5% -25% of the length of the main antenna radiator respectively, and the isolation among the main antenna radiator, the first 5G antenna radiator and the second 5G antenna radiator and the antenna performance of the antenna module and the electronic equipment using the antenna module are improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a schematic structural diagram of an antenna module according to an exemplary embodiment of the present disclosure;
FIG. 2 is a return loss plot for a primary antenna in an exemplary embodiment of the present disclosure;
FIG. 3 is a graph of ideal and actual efficiency of a main antenna in an exemplary embodiment of the present disclosure;
FIG. 4 is a Smith chart of a main antenna in an exemplary embodiment of the disclosure;
FIG. 5 is a return loss plot for a first 5G antenna in an exemplary embodiment of the present disclosure;
FIG. 6 is a graph of ideal and actual efficiency for a first 5G antenna in an exemplary embodiment of the present disclosure;
FIG. 7 is a return loss plot for a second 5G antenna in an exemplary embodiment of the present disclosure;
FIG. 8 is a graph of ideal and actual efficiency for a second 5G antenna in an exemplary embodiment of the present disclosure;
FIG. 9 is a schematic diagram of current dissipation for a main antenna in an exemplary embodiment of the present disclosure;
fig. 10 is a schematic diagram of current dissipation for a first 5G antenna radiator in an exemplary embodiment of the disclosure;
fig. 11 is a schematic diagram of current dissipation for a second 5G antenna radiator in an exemplary embodiment of the disclosure;
fig. 12 is a graph illustrating isolation between antenna radiators in an antenna module according to an exemplary embodiment of the present disclosure.
Fig. 13 is a schematic partial structure diagram of an electronic device in an exemplary embodiment of the present disclosure.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
5G (5th Generation mobile networks, 5th Generation with less systems, 5th-Generation, fifth Generation mobile communication technology) is the latest Generation cellular mobile communication technology, and is also an extension following 4G (4th-Generation, fourth Generation mobile communication technology), 3G (3th-Generation, third Generation mobile communication technology), and 2G (2th-Generation, second Generation mobile communication technology). The 5G communication can improve the data rate, reduce the delay, save energy, reduce the cost, improve the system capacity and realize the connection with large-scale equipment.
In the related art, an electronic device such as a mobile phone generally includes both a 5G antenna and a main antenna that implements 2G, 3G, and 4G functions. However, in the use process of various antennas, due to the limitations in terms of assembly space, antenna structure, and the like, there is a problem of mutual interference between antennas, which affects the isolation and use performance between antennas.
Fig. 1 is a schematic structural diagram of an antenna module according to an exemplary embodiment of the present disclosure. As shown in fig. 1, the antenna module 1 includes: a control line 11 and a main antenna radiator 12, a first 5G antenna radiator 13 and a second 5G antenna radiator 14 electrically connected to the control line 11. The main antenna radiator 12 includes a first end 1221 and a second end 1231 on both sides of the main antenna radiator 12, the first 5G antenna radiator 13 is disposed on a side near the first end 1221 and includes a third end 1312 adjacent to the first end 1221, the first end 1221 and the third end 1312 are separated by a first distance D1, and the first distance D1 accounts for 5% -25% of the length of the main antenna radiator 12. The second 5G antenna radiator 14 is disposed on a side near the second end 1231 and includes a fourth end 1412 adjacent the second end 1231, the second end 1231 and the fourth end 1412 are spaced apart by a second distance D2, and the second distance D2 accounts for 5% -25% of the length of the main antenna radiator 12.
By arranging the control circuit 11, the main antenna radiator 12, the first 5G antenna radiator 13 and the second 5G antenna radiator 14 for the antenna module 1 and limiting the first distance D1 and the second distance D2 to be 5% -25% of the length of the main antenna radiator 12, the isolation among the main antenna radiator 12, the first 5G antenna radiator 12 and the second 5G antenna radiator 14 and the antenna performance of the antenna module 1 are improved.
In the above embodiment, the main antenna radiator 12 is provided with the first feeding point 1211 and the at least one grounding point 1212, the first 5G antenna radiator 13 is provided with the second feeding point 1311, the second 5G antenna radiator 14 is provided with the third feeding point 1411, the control line 11 is electrically connected to the grounding point 1212, the first feeding point 1211, the second feeding point 1311 and the third feeding point 1411, respectively, and the control line 11 includes the at least one tuning element 111, so as to adjust the antenna performance of the main antenna radiator 12, the first 5G antenna radiator 13 and the second 5G antenna radiator 14 through the tuning element 111.
It should be noted that the tuning element 111 may be a capacitor or an inductor, and the parameter for measuring the performance of the antenna includes at least one of the return loss, the ideal efficiency, and the actual efficiency of the antenna. For example, when a line including a capacitor and/or an inductor is connected to a certain position of the main antenna radiator 12, the line is matched and combined with the ground point 1212 and the first feed point 1211 of the main antenna radiator 12 to form a loop for controlling the signal radiated from the main antenna radiator 12. At the moment, the tuning of the line can be realized by adjusting the value of the capacitor and/or the inductor in the line, so that the return loss, the ideal efficiency and the actual efficiency of the main antenna reach the expected standards.
In the above embodiment, according to a specific application scenario of the antenna module 1, the range of the first distance may be: 3mm to 18mm, the second distance may range from: 3mm-18 mm. The following is an exemplary description of specific structures, dimensions and structural dimensioning schemes of the main antenna radiator 12, the first 5G antenna radiator 13 and the second 5G antenna radiator 14, respectively:
1. the main antenna radiator 12 is sized to increase the length of the first and second distances D1 and D2:
in an embodiment, the main antenna radiator 12 includes a first radiating segment 121, a second radiating segment 122, and a third radiating segment 123, the first radiating segment 121 is disposed between the second radiating segment 122 and the third radiating segment 123, the first end 1221 is located on the second radiating segment 122, and the second end 1231 is located on the third radiating segment 123. The length B of the second radiating section 122 may be inversely related to the first distance D1 and the length C of the third radiating section 123 may be inversely related to the second distance D2. That is, in order to make the first distance D1 reach the preset size range, it may be implemented by shortening the length B of the second radiating section 122 based on the definition that the length B of the second radiating section 122 is inversely related to the first distance D1. Likewise, to achieve the second distance D2 within the predetermined size range, the length C of the third radiating section 123 may be shortened based on the definition that the length C of the third radiating section 123 is inversely related to the second distance D2.
In the above embodiment, the main antenna may adopt a conventional IFA antenna scheme, wherein the length a of the first radiation segment 121 may range from: 46.5mm-50mm, the length B of the second radiating section 122 ranges from: 6.8mm to 10mm, the length C of the third radiating section 123 may range from: 7mm-10 mm. In the above size range, the sizes of the second radiation section 122 and the third radiation section 123 can be shortened, and the size of the first radiation section 121 can be adjusted.
Further, the position of the first feed point 1211 on the main antenna radiator 12 may also be adjusted to reduce interference between the first feed point 1211 and the second and third feed points 1311, 1411. Specifically, the main antenna radiator 12 includes a first radiation segment 121, a second radiation segment 122, and a third radiation segment 123, the first radiation segment 121 is disposed between the second radiation segment 122 and the third radiation segment 123, and the first feeding point 1211 is disposed in a middle region of the first radiation segment 121. Since the first radiation segment 121 is located between the second radiation segment 122 and the third radiation segment 123, the first feed point 1211 is disposed in the middle region of the first radiation segment 121, so that the first feed point 1211 can be simultaneously away from the second feed point 1311 on the first 5G antenna radiator 13 and the third feed point 1411 on the second 5G antenna radiator 14, thereby simultaneously avoiding interference of the first feed point 1211 on the second feed point 1311 and the third feed point 1411, and improving the antenna performance of the main antenna, the first 5G antenna, and the second 5G antenna.
Further, two grounding points 1212 are disposed on the main antenna radiator 12, wherein one grounding point 1212 is disposed between the first feeding point 1211 and the end point of the first radiating section 121 close to the second radiating section 122, and the other grounding point 1212 is disposed on the third radiating section 123. The ground point 1212 can be matched-combined with the first feed point 1211, the second feed point 1311, the third feed point 1411 and the control line 11 and tuned by the tuning element 111 in the control line 11 to improve the antenna performance of the main antenna, the first 5G antenna and the second 5G antenna.
2. The dimensions of the first 5G antenna radiator 13 and the second 5G antenna radiator 14 are adjusted to increase the length of the first distance D1 and the second distance D2:
in another embodiment, the first 5G antenna radiator 13 includes a fourth radiation segment 131 and a fifth radiation segment 132, the third end 1312 is located on the fourth radiation segment 131, and the length J of the fourth radiation segment 131 may be inversely related to the first distance D1. The second 5G antenna radiator 14 includes a sixth radiating segment 141 and a seventh radiating segment 142, and the fourth end 1412 is located on the sixth radiating segment 141 such that the length G of the sixth radiating segment 141 is inversely related to the second distance D2. That is, in order to make the first distance D1 reach the preset size range, it may be achieved by shortening the length J of the fourth radiation section 131 based on the definition that the length J of the fourth radiation section 131 is inversely related to the first distance D1. Likewise, in order to bring the second distance D2 to the preset size range, it may be implemented by shortening the length G of the sixth radiating section 141 based on the definition that the length G of the sixth radiating section 141 is inversely related to the second distance D2.
Wherein the length J of the fourth radiating section 131 may range from: 10mm-12mm, the length K of the fifth radiating section 132 may range from: 6mm-8 mm. The length G of the sixth radiating section 141 may range from: 11mm-15mm, the length H of the seventh radiating section 142 may range from: 5mm-9 mm. Within the above size range, the sizes of the fourth and sixth radiation segments 131 and 141 may be shortened, and the sizes of the fifth and seventh radiation segments 132 and 142 may be adaptively adjusted.
Further, a second feeding point 1311 is disposed on the fourth radiation segment 131, the second feeding point 1311 is spaced apart from the third end 1312 by a third distance I, and the third distance I includes: 5.5mm-6.5 mm. By limiting the third distance I within the above range, the influence of the change in the size of the fourth radiation segment 131 on the performance of the first 5G antenna is reduced by the matching combination of the second feeding point 1311 and the tuning element 111 in the control line 11, and the interference with the main antenna radiator 12 is reduced by forming mode convergence based on tuning. Furthermore, the limitation of the size range of the third distance I increases the distance between the second feed point 1311 and the first feed point 1211, and also reduces the influence on the main antenna radiator 12. Particularly, the third distance I may be 6mm, and when the third distance I is 6mm, the isolation between the first 5G antenna radiator 13 and the main antenna radiator 12 can be effectively improved, and the performance of the first 5G antenna can also be improved.
Further, the third feeding point 1411 is disposed on the sixth radiating segment 141, and the third feeding point 1411 is spaced from the fourth end 1412 by a fourth distance F, which may range from: 6.5mm-7.5 mm. By limiting the fourth distance F to the above range, the influence of the change in the size of the sixth radiating section 141 on the performance of the second 5G antenna is reduced by the matching combination of the third feeding point 1411 and the tuning element 111 in the control line 11, and the interference with the main antenna radiator 12 is reduced by forming mode convergence based on tuning. Furthermore, the limitation of the size range of the fourth distance F increases the distance between the third feed point 1411 and the first feed point 1211, and also reduces the influence on the main antenna radiator 12. In particular, the fourth distance F may be 7mm, and when the fourth distance F is 7mm, the isolation between the second 5G antenna radiator 14 and the main antenna radiator 12 may be effectively improved, and the performance of the second 5G antenna may also be improved.
3. Simultaneously the dimensions of the main antenna radiator 12, the first 5G antenna radiator 13 and the second 5G antenna radiator 14 are adjusted to increase the length of the first distance D1 and the second distance D2:
in yet another embodiment, the main antenna radiator 12 includes a first radiating segment 121, a second radiating segment 122, and a third radiating segment 123, the first radiating segment 121 is disposed between the second radiating segment 122 and the third radiating segment 123, the first end 1221 is located on the second radiating segment 122, and the second end 1231 is located on the third radiating segment 123. The first 5G antenna radiator 13 includes a fourth radiation segment 131 and a fifth radiation segment 132, and the third end 1312 is located on the fourth radiation segment 131. The second 5G antenna radiator 14 includes a sixth radiation segment 141 and a seventh radiation segment 142, and the fourth end 1412 is located on the sixth radiation segment 141.
Wherein the sizes of the main antenna radiator 12, the first 5G antenna radiator 13, and the second 5G antenna radiator 14 may be adjusted simultaneously, for example, the lengths of the main antenna radiator 12, the first 5G antenna radiator 13, and the second 5G antenna radiator 14 may be shortened simultaneously to increase the lengths of the first distance D1 and the second distance D2, and the shortened sizes may be shared by the main antenna radiator 12, the first 5G antenna radiator 13, and the second 5G antenna radiator 14, thereby reducing performance impact on the corresponding antennas when the main antenna radiator 12, the first 5G antenna radiator 13, or the second 5G antenna radiator 14 is shortened separately. Alternatively, the length of the main antenna radiator 12 is shortened and the lengths of the first 5G antenna radiator 13 and the second 5G antenna radiator 14 are increased to increase the lengths of the first distance D1 and the second distance D2. Still alternatively, the lengths of the first 5G antenna radiator 13 and the second 5G antenna radiator 14 are shortened, and the length of the main antenna radiator 12 is increased to increase the lengths of the first distance D1 and the second distance D2.
With the sizing scheme described above, the length of the first distance D1 may be increased to 8mm, and the length of the second distance D2 may be increased to 6.5 mm. Meanwhile, a third distance I between the second feeding point 1311 and the third terminal 1312 is increased to 6mm, and a fourth distance F between the third feeding point 1411 and the fourth terminal 1412 is increased to 7 mm. The isolation between the main antenna radiator 12, the first 5G antenna radiator 13 and the second 5G antenna radiator 14 is improved by at least 2dB-4dB by a first distance D1 of 8mm, a second distance D2 of 6.5mm, a third distance I of 6mm and a fourth distance F of 7 mm. Accordingly, the length B of the second radiating section 122 may be adjusted to 6.8mm, the length C of the third radiating section 123 may be adjusted to 7.7mm, and the length a of the first radiating section 121 may be adjusted to 49 mm. The length J of the fourth radiation section 131 is adjusted to 11mm, and the length K of the fifth radiation section 132 is adjusted to 6.3 mm. The length G of the sixth radiating section 141 is adjusted to 13mm, and the length H of the seventh radiating section 142 is adjusted to 7.7 mm.
Under the above dimensional conditions, the control line 11 is tuned to obtain the return loss of the main antenna as shown in fig. 2, the ideal efficiency and the actual efficiency of the main antenna as shown in fig. 3, and the clutter formed by the antenna is cancelled to obtain the smith chart as shown in fig. 4. In fig. 2, Sa1 is a return loss curve before the main antenna is improved, and Sc1 is a return loss curve after the main antenna is improved. In fig. 3, Ra1 is an ideal efficiency curve before improvement of the main antenna, Rc1 is an ideal efficiency curve after improvement of the main antenna, Ta1 is an actual efficiency curve before improvement of the main antenna, Tc1 is an actual efficiency curve after improvement of the main antenna, and in fig. 3, when the frequency is around 2.6, the marked point 1 is the ideal efficiency before improvement, and the value is-3.6662 dB; point 2 of the mark is the actual efficiency after improvement, the value reaches-5.5168 dB, and the efficiency of the main antenna can be improved after the size and the performance are adjusted. Fig. 4 is a smith chart of the improved main antenna, wherein the curve shows that the antenna clutter disappears after the size and tuning of the main antenna are improved, so that the performance of the main antenna meets the use requirement.
Further, the return loss of the first 5G antenna is obtained as shown in fig. 5, and the ideal efficiency and the actual efficiency of the first 5G antenna are shown in fig. 6; the return loss of the second 5G antenna is obtained as shown in fig. 7, and the ideal efficiency and actual efficiency of the second 5G antenna are shown in fig. 8. In fig. 5, Sa2 is a return loss curve before the first 5G antenna is improved, and Sc2 is a return loss curve after the first 5G antenna is improved. In fig. 6, Ra2 is an ideal efficiency curve before the first 5G antenna is improved, Rc2 is an ideal efficiency curve after the first 5G antenna is improved, Ta2 is an actual efficiency curve before the first 5G antenna is improved, and Tc2 is an actual efficiency curve after the first 5G antenna is improved. In fig. 7, Sa3 is a return loss curve before the second 5G antenna is modified, and Sc3 is a return loss curve after the second 5G antenna is modified. In fig. 8, Ra3 is an ideal efficiency curve before the second 5G antenna is improved, Rc3 is an ideal efficiency curve after the second 5G antenna is improved, Ta3 is an actual efficiency curve before the second 5G antenna is improved, and Tc3 is an actual efficiency curve after the second 5G antenna is improved.
As can be seen from the diagrams of fig. 2 to 8 showing the antenna performance of the main antenna, the first 5G antenna and the second 5G antenna, the main antenna, the first 5G antenna and the second 5G antenna all meet the preset use requirement.
By providing the antenna module 1 with the control line 11, the main antenna radiator 12, the first 5G antenna radiator 13, and the second 5G antenna radiator 14, and based on the dimensional relationship between the first distance D1 and the second distance D2 and the main antenna radiator 12, respectively, the first distance D1 and the second distance D2 are adjusted to desired values. That is, the distance between the radiators is increased to an expected value by shortening the designated radiator length inside the antenna module 1, and the isolation among the main antenna radiator 12, the first 5G antenna radiator 13, and the second 5G antenna radiator 14 is improved without increasing the occupied space of the antenna module 1. Furthermore, after the sizes of the main antenna radiator 12, the first 5G antenna radiator 13, and the second 5G antenna radiator 14 are adjusted, the circuit can be tuned by the tuning element 111 in the control line 11, and the antenna performance of the main antenna, the first 5G antenna, and the second 5G antenna, and the electronic device 2 using the antenna module 1 can be ensured.
In other embodiments, the sizes of the first distance D1 and the second distance D2 may be directly increased without changing the sizes of the main antenna radiator 12, the first 5G antenna radiator 13, and the second 5G antenna radiator 14, so as to reduce the antenna performance impact on the main antenna, the first 5G antenna, and the second 5G antenna, when the assembly space of the electronic device allows.
In addition, the antenna module 1 further includes at least one first ground element 15, the first ground element 15 is disposed on one side of the main antenna radiator 12 along the length direction of the main antenna radiator 12, and the first ground element 15 is disposed on one side of the main antenna radiator 12, so that the first ground element 15 is matched with metal in the screen to ground the screen, thereby preventing the metal in the screen and the main antenna radiator 12 from forming a coupling cavity and reducing current dissipation. Fig. 9 is a current dissipation diagram of the antenna module 1 of the electronic device 2, and it can be seen from fig. 9 that the first grounding piece 15 effectively prevents current dissipation, thereby improving the performance of the main antenna.
It should be noted that the antenna module 1 may include a first grounding element 15 extending from one end of the main antenna radiator 12 to the other end, so as to form a complete grounding effect, thereby enhancing the current dissipation suppressing effect. Alternatively, the antenna module 1 may include a plurality of first ground parts 15, and the first ground parts 15 are disposed at intervals along the longitudinal direction of the main antenna radiator 12 at one side of the main antenna radiator 12. The first grounding pieces 15 arranged at intervals can avoid interference on other structures inside the electronic equipment 2, and the assembling space of the electronic equipment 2 is optimized.
Further, the antenna module 1 further includes at least one second ground element 16 and at least one third ground element 17, where the second ground element 16 and the third ground element 17 are respectively matched with metal in the screen of the electronic device 2, the second ground element 16 is disposed on one side of the first 5G antenna radiator 13 along the length direction of the first 5G antenna radiator 13, and the third ground element 17 is disposed on one side of the second 5G antenna radiator 14 along the length direction of the second 5G antenna radiator 14. The second grounding piece 16 and the third grounding piece 17 are matched with the metal in the screen to ground the screen, so that the metal in the screen and the first 5G antenna radiator 13 or the second 5G antenna radiator 14 are prevented from forming a coupling cavity, and the current dissipation is reduced. Fig. 10 is a current dissipation diagram of the first 5G antenna radiator 13, fig. 11 is a current dissipation diagram of the second 5G antenna radiator 14, and as can be seen from fig. 10 and 11, the second ground piece 16 and the third ground piece 17 effectively avoid current dissipation, reduce the possibility of reducing isolation due to current dissipation from one radiator to another, and improve the performance of the main antenna, the first 5G antenna and the second 5G antenna.
Analyzing the isolation among the main antenna radiator 12, the first 5G antenna radiator 13 and the second 5G antenna radiator 14 on the basis of the above size adjustment and feeding point position adjustment for the main antenna radiator 12, the first 5G antenna radiator 13 and the second 5G antenna radiator 14 and the settings of the first ground piece 15, the second ground piece 16 and the third ground piece 17 to obtain an isolation curve diagram shown in fig. 12, wherein Sa21 in fig. 12 is the isolation curve diagram before improvement of the main antenna radiator and the first 5G antenna radiator; sc21 is an improved isolation curve diagram of the main antenna radiator and the first 5G antenna radiator; sa31 is a graph of the isolation between the main antenna radiator and the second 5G antenna radiator before improvement; sc31 is an improved isolation curve diagram of the main antenna radiator and the second 5G antenna radiator; sa32 is a graph of the isolation between the first 5G antenna radiator and the second 5G antenna radiator before improvement; sc32 is an improved isolation curve diagram of the first 5G antenna radiator and the second 5G antenna radiator.
As can be taken from fig. 12, the isolation between the main antenna radiator 12 and the first 5G antenna radiator 13 before the improvement is about-8 dB, as shown at point 1, and the isolation between the main antenna radiator 12 and the first 5G antenna radiator 13 after the improvement is about-13 dB, as shown at point 2; the isolation between the main antenna radiator 12 and the second 5G antenna radiator 14 before the improvement is about-13 dB, as shown at point 3, and the isolation between the main antenna radiator 12 and the second 5G antenna radiator 14 after the improvement is about-21 dB, as shown at point 6; the isolation between the first 5G antenna radiator 13 and the second 5G antenna radiator 14 is about-9 dB before improvement, as shown at point 4, and the isolation between the first 5G antenna radiator 13 and the second 5G antenna radiator 14 is about-32 dB after improvement, as shown at point 5.
Before the size adjustment and the feeding point position adjustment of the main antenna radiator 12, the first 5G antenna radiator 13, and the second 5G antenna radiator 14 and the setting of the first ground element 15, the second ground element 16, and the third ground element 17, the isolation between the main antenna radiator 12 and the first 5G antenna radiator 13 is about-8 dB, the isolation between the main antenna radiator 12 and the second 5G antenna radiator 14 is about-13 dB, and the isolation between the first 5G antenna radiator 13 and the second 5G antenna radiator 14 is about-9 dB. It can be seen that the isolation between the main antenna radiator 12, the first 5G antenna radiator 13, and the second 5G antenna radiator 14 is improved by at least-5 dB by adjusting the size of the main antenna radiator 12, the first 5G antenna radiator 13, and the second 5G antenna radiator 14, adjusting the position of the feed point, and providing the first ground element 15, the second ground element 16, and the third ground element 17.
It should be noted that the antenna module 1 may include a second grounding element 16 extending from one end of the first 5G antenna radiator 13 to the other end, so as to form a complete grounding effect, thereby enhancing the effect of suppressing current dissipation. Alternatively, the antenna module 1 may include a plurality of second ground parts 16, and the second ground parts 16 are disposed at intervals on one side of the first 5G antenna radiator 13 along the longitudinal direction of the first 5G antenna radiator 13. The second grounding pieces 16 arranged at intervals can avoid interference with other structures inside the electronic device 2, and the assembling space of the electronic device 2 is optimized.
Similarly, the antenna module 1 may include a third ground element 17 extending from one end of the second 5G antenna radiator 14 to the other end, so as to form a complete ground effect, thereby enhancing the suppression effect on current dissipation. Alternatively, the antenna module 1 may include a plurality of third ground parts 17, and the third ground parts 17 are disposed at intervals on one side of the second 5G antenna radiator 14 along the length direction of the second 5G antenna radiator 14. The third grounding parts 17 arranged at intervals can avoid interference on other structures inside the electronic device 2, and the assembling space of the electronic device 2 is optimized.
The present disclosure further provides an electronic device 2, as shown in fig. 13, the electronic device 2 includes a device body 21 and the antenna module 1, and the antenna module 1 is assembled to the device body 21.
Further, the device body 21 includes a metal middle frame, the main antenna radiator 12 is a first portion of the metal middle frame, the first 5G antenna radiator 13 is a second portion of the metal middle frame, and the second 5G antenna radiator 14 is a third portion of the metal middle frame. The metal bezel includes a top, a bottom, and two sides connecting the top and the bottom, with a main antenna radiator 12 disposed on the top or the bottom, a first 5G antenna radiator 13 disposed on one side, and a second 5G antenna radiator 14 disposed on the other side.
By providing the antenna module 1 with the control circuit 11, the main antenna radiator 12, the first 5G antenna radiator 13 and the second 5G antenna radiator 14, and defining the first distance D1 and the second distance D2 to be 5% -25% of the length of the main antenna radiator 12, the isolation among the main antenna radiator 12, the first 5G antenna radiator 12 and the second 5G antenna radiator 14 and the antenna performance of the antenna module 1 and the electronic device 2 using the antenna module 1 are improved.
Alternatively, the antenna module 1 may also be directly disposed inside the device main body 21, and this disclosure limits the specific implementation form of the antenna module 1.
In addition, the electronic device 2 further includes a screen (not labeled), and the metal middle frame of the electronic device 2 is directly used as an antenna radiator, so that the influence of the antenna module 1 on the screen occupation ratio of the electronic device 2 is reduced. The screen can be a full screen, and is matched with an antenna radiator serving as a metal middle frame structurally, so that the display area and the whole display effect of the screen are improved.
The electronic device 2 may be a mobile phone, a tablet computer, a vehicle-mounted terminal, a medical terminal, and the like, which is not limited in this disclosure.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (15)
1. An antenna module, assembled to an electronic device, the antenna module comprising: the antenna comprises a control circuit, and a main antenna radiator, a first 5G antenna radiator and a second 5G antenna radiator which are electrically connected to the control circuit;
the main antenna radiator comprises a first end and a second end which are positioned at two sides of the main antenna radiator;
the first 5G antenna radiator is arranged on one side close to the first end and comprises a third end close to the first end; the first end and the third end are separated by a first distance; the first distance accounts for 5% -25% of the length of the main antenna radiator;
the second 5G antenna radiator is arranged on one side close to the second end and comprises a fourth end close to the second end; the second end and the fourth end are a second distance apart; the second distance accounts for 5% -25% of the length of the main antenna radiator.
2. The antenna module of claim 1, wherein the main antenna radiator includes a first radiating segment, a second radiating segment, and a third radiating segment, the first radiating segment disposed between the second radiating segment and the third radiating segment, the first end located on the second radiating segment, and the second end located on the third radiating segment.
3. The antenna module of claim 2, wherein the first radiating segment has a length range comprising: 46.5mm-50 mm; the length range of the second radiating section includes: 6.8mm-10 mm; the third radial segment length range includes: 7mm-10 mm.
4. The antenna module of claim 1, wherein the range of the first distance comprises: 3mm-18 mm; the range of the second distance includes: 3mm-18 mm.
5. The antenna module of claim 1, wherein the main antenna radiator has a first feeding point and at least one grounding point thereon, the first 5G antenna radiator has a second feeding point thereon, and the second 5G antenna radiator has a third feeding point thereon; the control circuit is respectively electrically connected with the grounding point, the first feeding point, the second feeding point and the third feeding point, and the control circuit comprises at least one tuning element so as to adjust the antenna performance of the main antenna radiator, the first 5G antenna radiator and the second 5G antenna radiator through the tuning element.
6. The antenna module of claim 5, wherein the primary antenna radiator includes a first radiating segment, a second radiating segment, and a third radiating segment, the first radiating segment disposed between the second radiating segment and the third radiating segment; the first feeding point is disposed in a middle region of the first radiating section.
7. The antenna module of claim 6, wherein two grounding points are disposed on the main antenna radiator, one of the grounding points is disposed between the first feeding point and the end point of the first radiating section near the second radiating section, and the other grounding point is disposed on the third radiating section.
8. The antenna module of claim 5, wherein the first 5G antenna radiator comprises a fourth radiating segment and a fifth radiating segment, and the third end is located on the fourth radiating segment; the second 5G antenna radiator includes a sixth radiation segment and a seventh radiation segment, and the fourth end is located on the sixth radiation segment.
9. The antenna module of claim 8, wherein the length range of the fourth radiating segment comprises: 10mm-12 mm; the length range of the fifth radiation segment comprises: 6mm-8 mm; the second feeding point is disposed on the fourth radiation segment, and the second feeding point is spaced from the third end by a third distance, where the range of the third distance includes: 5.5mm-6.5 mm;
the length range of the sixth radiating section includes: 11mm-15mm, the length of the seventh radiating section ranging from: 5mm-9 mm; the third feeding point is disposed on the sixth radiating segment, and the third feeding point is spaced from the fourth end by a fourth distance, where the range of the fourth distance includes: 6.5mm-7.5 mm.
10. The antenna module of claim 1, wherein the primary antenna radiator includes a first radiating segment, a second radiating segment, and a third radiating segment, the first radiating segment disposed between the second radiating segment and the third radiating segment, the first end located on the second radiating segment, the second end located on the third radiating segment; the first 5G antenna radiator comprises a fourth radiation section and a fifth radiation section, and the third end is positioned on the fourth radiation section; the second 5G antenna radiator comprises a sixth radiation segment and a seventh radiation segment, and the fourth end is located on the sixth radiation segment;
the length of the first radiation section is 49mm, the length of the second radiation section is 6.8mm, and the length of the third radiation section is 7.7 mm; the length of the fourth radiation section is 11mm, and the length of the fifth radiation section is 6.3 mm; the length of the sixth radiation section is 13mm, and the length of the seventh radiation section is 7.7 mm; the length of the first distance is 8mm, and the length of the second distance is 6.5 mm.
11. The antenna module of claim 1, further comprising at least one first ground element coupled to a screen of the electronic device and disposed on a side of the main antenna radiator along a length of the main antenna radiator.
12. The antenna module of claim 11, wherein the antenna module further comprises at least one second ground element and at least one third ground element, the second ground element and the third ground element are respectively coupled to a screen of the electronic device, the second ground element is disposed on one side of the first 5G antenna radiator along a length direction of the first 5G antenna radiator, and the third ground element is disposed on one side of the second 5G antenna radiator along a length direction of the second 5G antenna radiator.
13. The antenna module of claim 1, wherein the parameters measuring the performance of the antenna comprise at least one of return loss, ideal efficiency, and actual efficiency of the antenna.
14. An electronic device comprising a device body and the antenna module of any one of claims 1-13, wherein the antenna module is assembled to the device body.
15. The electronic device of claim 14, wherein the device body comprises a metal bezel, wherein the primary antenna radiator is a first portion of the metal bezel, wherein the first 5G antenna radiator is a second portion of the metal bezel, and wherein the second 5G antenna radiator is a third portion of the metal bezel; the metal center includes top, bottom and connection the top with two lateral parts of bottom, main antenna radiator sets up top or bottom, first 5G antenna radiator sets up one on the lateral part, second 5G antenna radiator sets up another on the lateral part.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106450662A (en) * | 2015-08-13 | 2017-02-22 | 三星电子株式会社 | Electronic device |
| US20180026333A1 (en) * | 2016-07-21 | 2018-01-25 | Chiun Mai Communication Systems, Inc. | Antenna structure and wireless communication device using same |
| CN108511905A (en) * | 2018-04-19 | 2018-09-07 | Oppo广东移动通信有限公司 | Antenna system and mobile terminal |
| WO2019205176A1 (en) * | 2018-04-28 | 2019-10-31 | 华为技术有限公司 | Antenna apparatus and terminal device |
| CN110459856A (en) * | 2018-05-08 | 2019-11-15 | 深圳富泰宏精密工业有限公司 | Antenna structure and wireless communication device with the antenna structure |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106450662A (en) * | 2015-08-13 | 2017-02-22 | 三星电子株式会社 | Electronic device |
| US20180026333A1 (en) * | 2016-07-21 | 2018-01-25 | Chiun Mai Communication Systems, Inc. | Antenna structure and wireless communication device using same |
| CN108511905A (en) * | 2018-04-19 | 2018-09-07 | Oppo广东移动通信有限公司 | Antenna system and mobile terminal |
| WO2019205176A1 (en) * | 2018-04-28 | 2019-10-31 | 华为技术有限公司 | Antenna apparatus and terminal device |
| CN110459856A (en) * | 2018-05-08 | 2019-11-15 | 深圳富泰宏精密工业有限公司 | Antenna structure and wireless communication device with the antenna structure |
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