Antenna module and electronic equipment
By introducing a guide in the antenna module, the energy of the antenna radiator is coupled to the conductive branches, dispersing the radiation direction and increasing the radiation area, the problem of SAR exceeding the standard of electronic devices in the ultra-high frequency band is solved, and the antenna performance and user experience are improved.
Patent Information
- Application Number
- CN202422346484.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-09-25
AI Technical Summary
When using ultra-high frequency bands, electronic devices are prone to exceed the specific absorption rate (SAR) value due to concentration of radiation energy, which affects communication effect and user experience.
Introducing a guide in the antenna module, by coupling the energy of the antenna radiator to the direction of the conductive branches for direction, dispersing the radiation direction and increasing the radiation area, expanding the bandwidth, and reducing the SAR value.
It improves the transmitting and receiving efficiency of the antenna, reduces the reduction of transmission power, meets the requirements of SAR regulations, and improves the communication experience.
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Figure CN223193991U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the field of mobile consumer electronics, and in particular to an antenna module and an electronic device. Background Art
[0002] With the continuous advancement of communications technology, fifth-generation mobile communication technology (5G) is becoming increasingly popular. Because the Ultra High Band (UHB) has a wider bandwidth than the fourth-generation mobile communication technology (4G) frequency band, its use in electronic devices is increasing. However, when electronic devices use UHB to transmit and receive wireless signals, the concentrated radiation energy can lead to serious Specific Absorption Rate (SAR) values exceeding the standard. Summary of the Invention
[0003] In order to overcome the problems existing in the related art, the present disclosure provides an antenna module and an electronic device, which can not only improve the antenna transmission and reception efficiency, but also reduce the reduction of the transmission power of the antenna module.
[0004] According to a first aspect of an embodiment of the present disclosure, there is provided an antenna module, including:
[0005] Antenna radiator;
[0006] a director, spaced apart from the antenna radiator and capable of coupling with the antenna radiator;
[0007] At least one conductive branch, each of the conductive branches being spaced apart from the director and the antenna radiator;
[0008] Wherein, when the antenna radiator transmits and receives wireless signals, the director can direct the coupled energy obtained by coupling toward the direction of the at least one conductive branch, so that the at least one conductive branch transmits and receives the wireless signal.
[0009] In some embodiments, the conductive branches are multiple;
[0010] A plurality of conductive branches and the antenna radiator are respectively distributed along the edge of the director;
[0011] The director is used to direct the coupled energy toward the direction of the plurality of conductive branches.
[0012] In some embodiments, the plurality of conductive branches include:
[0013] A first conductive branch, which is distributed on a different side of the director from the antenna radiator;
[0014] A second conductive branch is distributed on the same side of the director as the antenna radiator;
[0015] The director is used to direct the coupled energy toward the first conductive branch and the second conductive branch.
[0016] In some embodiments, the length of the director along the first direction is greater than the length of the director along the second direction; the first direction and the second direction are perpendicular in a plane;
[0017] The first conductive branch is provided on one side of the director along the first direction;
[0018] The second conductive branch and the antenna radiator are spaced apart and arranged on one side of the director along the second direction.
[0019] In some embodiments, each of the conductive branches is located in a different plane from the director, and forms a first projection onto the plane where the director is located;
[0020] The second projection formed by the director in the direction of the first projection at least partially overlaps with the first projection.
[0021] In some embodiments, the length of the director along the first direction and the length of the director along the second direction are both integer multiples of the wavelength of the wireless signal transmitted and received by the antenna radiator.
[0022] In some embodiments, the length of the director along the second direction is equal to the wavelength; and / or the length of the director along the first direction is 3 times the wavelength.
[0023] In some embodiments, the distance between the director and the antenna radiator in the second direction is less than 4 mm; and / or,
[0024] The distance between the director and the antenna radiator in the third direction is between 1 mm and 2 mm;
[0025] The third direction is perpendicular to the plane where the first direction and the second direction of the director are located.
[0026] In some embodiments, the director is formed of a flexible circuit board.
[0027] According to a second aspect of an embodiment of the present disclosure, there is provided an electronic device, including:
[0028] frame;
[0029] The antenna module as described in the first aspect above;
[0030] The director of the antenna module is arranged in the space surrounded by the frame;
[0031] The frames at different positions in the frame are reused as the antenna radiator and at least one conductive branch of the antenna module.
[0032] In some embodiments, the border comprises:
[0033] A first frame is provided on the top of the electronic device and is multiplexed as a first conductive branch of the antenna module;
[0034] a second frame connected to the first frame and arranged on a side of the electronic device;
[0035] Wherein, the frame body in the second frame close to the first frame is reused as the antenna radiator;
[0036] The frame body in the second frame away from the first frame is reused as the second conductive branch of the antenna module.
[0037] In some embodiments, the electronic device further comprises:
[0038] a middle frame, located in the space surrounded by the frame and formed with an antenna bracket;
[0039] The antenna bracket is used to carry the director of the antenna module.
[0040] The technical solutions provided by the embodiments of the present disclosure may have the following beneficial effects:
[0041] The disclosed embodiments can couple the energy of the antenna radiator to at least one conductive branch through a director, which not only disperses the directionality of the antenna radiation but also effectively increases the antenna's radiation area, thereby expanding the antenna's bandwidth and improving the antenna's transceiver efficiency. Furthermore, by coupling the energy of the antenna radiator to at least one conductive branch through a director, the concentration of antenna radiation can be reduced, making high SAR radiation areas more dispersed. This not only reduces radiation to the human body but also reduces the reduction in the antenna module's transmit power to meet SAR regulations, thereby improving the communication experience.
[0042] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS
[0043] 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 present disclosure.
[0044] Figure 1is a schematic structural diagram of a conventional antenna according to an exemplary embodiment.
[0045] Figure 2 FIG. 1 is a schematic structural diagram of an antenna module according to an exemplary embodiment of the present invention.
[0046] Figure 3 FIG. 1 is a schematic diagram showing a comparison between the performance of an antenna without a director and the performance of an antenna with a director, shown in an exemplary embodiment.
[0047] Figure 4a FIG. 1 is a schematic diagram of SAR hotspots in an antenna without a director, shown as an exemplary embodiment.
[0048] Figure 4b FIG. 1 is a schematic diagram of SAR hotspots in an antenna with a director, shown as an exemplary embodiment.
[0049] Figure 5a FIG. 1 is a structural diagram showing an antenna module having multiple conductive branches according to an exemplary embodiment.
[0050] Figure 5b The figure is a schematic diagram showing the direction of a director in an antenna module according to an exemplary embodiment.
[0051] Figure 6 The figure is a structural block diagram of an electronic device according to an exemplary embodiment. DETAILED DESCRIPTION
[0052] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments 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.
[0053] In related technologies, such as Figure 1 As shown, the metal-framed N78 antenna 1 in a conventional UHB antenna utilizes the quarter-mode excitation of an inverted-F antenna (IFA) to generate N78 resonance. However, due to the high frequency, the required antenna length is relatively short, resulting in concentrated radiation and a high risk of exceeding the SAR value.
[0054] In order to meet the SAR regulations of China, the SAR standards of the European Union (CE) and the Federal Communications Commission (FCC) of the United States, electronic devices need to reduce the transmission power when they are put on the market. Figure 1As shown, the average in-band efficiency of N78 antenna 1 is -5.4dB, the measured total radiated power (trp) of the N78 antenna is 23.2dB, and the measured SAR value reaches 5.2W / kg. However, domestic regulations require the SAR value to be less than 2W / Kg. Therefore, to meet domestic regulatory requirements, the transmit power needs to be reduced by 4.5dB, bringing the transmit power of the N78 antenna to 18.2dB. As a result, the Internet experience in weak signal scenarios deteriorates and may even cause network disconnection.
[0055] In response to the above problems, an embodiment of the present disclosure provides an antenna module. By adding a director to the antenna module, it is possible to reduce the SAR value while also having a wider bandwidth, thereby improving the antenna sideband efficiency.
[0056] Figure 2 FIG is a schematic diagram showing the structure of the antenna module of the present disclosure according to an exemplary embodiment. Figure 2 As shown, the antenna module includes:
[0057] Antenna radiator 11;
[0058] a director 12, spaced apart from the antenna radiator 11 and capable of coupling with the antenna radiator 11;
[0059] At least one conductive branch 13, each of the conductive branches 13 being spaced apart from the director 12 and the antenna radiator 11;
[0060] When the antenna radiator 11 transmits and receives wireless signals, the director 12 can direct the coupled energy toward the direction of the at least one conductive branch 13 , so that the at least one conductive branch 13 transmits and receives the wireless signals.
[0061] In the disclosed embodiments, the antenna module is used to transmit and receive wireless signals and is applicable to wireless communication scenarios. For example, the antenna module can be used to implement voice communication, video communication, positioning, or charging scenarios.
[0062] Here, the antenna module can be applied to electronic devices, including smartphones, tablet computers, smart watches, etc.; the embodiment of the present disclosure can at least utilize the antenna radiator in the electronic device to send and receive wireless signals, thereby realizing wireless communication between the electronic device and other devices.
[0063] In the disclosed embodiment, the antenna radiator is a key component of the antenna module for transmitting and receiving wireless signals, and can cooperate with the RF front-end module to realize the transmission and reception of wireless signals.
[0064] For example, the RF front-end module includes: a first amplifier, an antenna switch, a filter, a duplexer, and a second amplifier. The first amplifier is used to amplify the electrical signal in the signal output channel. The antenna switch is used to switch between receiving and transmitting electrical signals, and between different frequency bands of the antenna. The filter is used to pass signals in a specific frequency band and filter out signals outside the specific frequency band. The duplexer is used to isolate the transmitted electrical signal from the received electrical signal, so that the antenna can operate normally when receiving and transmitting wireless signals at the same time. The second amplifier is used to amplify the electrical signal in the signal receiving channel. In this way, the RF front-end module can receive and transmit electrical signals, thereby enabling the antenna radiator to better transmit and receive wireless signals.
[0065] The above-mentioned antenna radiator can be set on the frame or back shell of the electronic device, or can be set between the back shell and the middle frame, or can be set between the middle frame and the display screen, etc., and the embodiments of the present disclosure do not limit this.
[0066] In the disclosed embodiments, the antenna module includes one or more conductive branches, each of which is spaced apart from the director. In some embodiments, the conductive branches can be located on a different side of the director than the antenna radiator, or on the same side of the director as the antenna radiator. In other embodiments, the conductive branches and the director can be located on the same plane or on different planes.
[0067] It should be noted that the conductive branches and antenna radiators can both be arranged on the frame or back shell of the electronic device, or can be separately arranged between different components of the electronic device, for example, the conductive branches are arranged between the back shell and the middle frame, and the antenna radiator is arranged between the middle frame and the display screen.
[0068] Here, in the process of setting the conductive branch and the antenna radiator, if there is only one conductive branch, one conductive branch can be set to be spaced apart from the antenna radiator; if there are multiple conductive branches, the antenna radiator can also be set to be spaced apart between multiple conductive branches.
[0069] In the disclosed embodiment, the director is spaced apart from the antenna radiator. When the antenna radiator is transmitting or receiving wireless signals, the director can direct coupled energy toward at least one conductive branch, enabling the at least one conductive branch to transmit or receive wireless signals. In other words, the director has a guiding function. After coupling with the antenna radiator, it can also couple with the conductive branch, enabling the conductive branch and the antenna radiator to jointly transmit or receive wireless signals.
[0070] Here, the director is used to direct the coupled energy toward at least one conductive branch.
[0071] For example, when there is one conductive branch, the director can guide in the direction of one conductive branch; when there are multiple conductive branches, the director can guide in the direction of one conductive branch among the multiple conductive branches, or can guide in the direction of at least two conductive branches among the multiple conductive branches.
[0072] In the present embodiment, after the director directs the coupled energy toward at least one conductive branch, the at least one conductive branch can couple with the director, thereby enabling the at least one conductive branch to transmit and receive wireless signals together with the antenna radiator.
[0073] For example, if the director can direct the coupled energy toward a conductive branch, then the coupling effect enables the conductive branch to transmit and receive wireless signals together with the antenna radiator; if the director can direct the coupled energy toward multiple conductive branches, then the coupling effect enables the multiple conductive branches to transmit and receive wireless signals together with the antenna radiator.
[0074] In the disclosed embodiment, the director can be made of copper, aluminum or other metal materials with good electrical conductivity, and can guide the coupled energy to at least one conductive branch. In some embodiments, the director can be made of a flexible printed circuit board.
[0075] In the embodiment of the present disclosure, an antenna bracket can be provided in the electronic device to support the flexible circuit board and improve the installation reliability of the director.
[0076] It should be noted that the flexible printed circuit board can be suspended in the electronic device, so the director can also be called a suspended director. When the director can direct the coupled energy in two directions and is made of metal material, the director can also be called a bidirectional metal director.
[0077] It can be understood that the director in the embodiment of the present disclosure can couple with the antenna radiator to obtain coupling energy, and when the antenna radiator transmits and receives wireless signals, the director can direct the coupling energy in the direction of at least one conductive branch, so that at least one conductive branch transmits and receives the wireless signal.
[0078] In other words, the director can couple the energy of the antenna radiator to at least one conductive branch, which not only disperses the directionality of the antenna radiation but also effectively increases the antenna's radiation area, thereby expanding the antenna's bandwidth and improving the antenna's transceiver efficiency. Furthermore, the director can couple the energy of the antenna radiator to at least one conductive branch, reducing the concentration of antenna radiation and making high SAR radiation areas more dispersed. This not only reduces radiation to the human body but also reduces the reduction in the antenna module's transmit power to meet SAR regulations, thereby improving the communication experience.
[0079] For example, Figure 3 FIG. 1 is a schematic diagram showing a comparison between the performance of an antenna without a director and the performance of an antenna with a director, as shown in an exemplary embodiment. Figure 3 As shown, the horizontal axis represents frequency in GHz; the vertical axis represents efficiency in dB; the dotted line represents antenna 1 without a director; the solid line represents antenna 2 with a director (such as the antenna module of the embodiment of the present disclosure).
[0080] Depend on Figure 3 As can be seen, the bandwidth of Antenna 2 with the director in this embodiment of the disclosure is extended by 50 MHz, the average in-band efficiency is increased by 0.3 dB, the sideband efficiency is increased by 0.5 dB, and the measured Trp is 23.7 dB. Thus, compared to the performance of the antenna without the director, the performance of the antenna in this embodiment of the disclosure with the director can be improved by 0.5 dB.
[0081] For example, Figure 4a FIG. 1 is a schematic diagram of SAR hotspots in an antenna without a director, shown as an exemplary embodiment. Figure 4b FIG. 1 is a schematic diagram of a SAR hotspot in an antenna with a director, as shown in an exemplary embodiment. Figure 4a and Figure 4b As shown, the direction of arrow A and the direction of arrow B both indicate that the antenna radiates wireless signals from strong to weak, relative to Figure 4a , Figure 4b The areas of high SAR emissions shown can be more dispersed.
[0082] Here, the SAR value of the antenna with a director in the embodiment of the present disclosure can be measured to be 3.8W / Kg, which is 1.4W / Kg lower than that of the antenna without a director. Moreover, for the antenna with a director, the SAR value meets the regulatory requirements and the reduced transmit power can be reduced to 2.5dB, which is equivalent to a 2dB increase in the transmit power of the N78 frequency band in user usage scenarios. This can effectively improve the user experience in weak signal scenarios (such as subways, underground parking lots, etc.).
[0083] In some embodiments, as Figure 5a and Figure 5b As shown, there are multiple conductive branches 13;
[0084] A plurality of conductive branches 13 and the antenna radiator 11 are respectively distributed along the edge of the director 12;
[0085] The director 12 is used to direct the coupled energy toward the plurality of conductive branches 13 .
[0086] In the embodiment of the present disclosure, a plurality of conductive branches and antenna radiators may be distributed along the edge of the director in a preset order.
[0087] For example, with the antenna radiator as a starting point, a plurality of conductive branches are distributed at intervals along the edge of the director in a clockwise or counterclockwise direction behind the antenna radiator.
[0088] For another example, taking one of the multiple conductive branches as a starting point, an antenna radiator and the remaining conductive branches are distributed behind the starting point in a clockwise or counterclockwise direction along the edge of the director.
[0089] In an embodiment of the present disclosure, when the antenna module is used in an electronic device, the multiple conductive branches and antenna radiators are distributed along the edge of the director. This may include: the multiple conductive branches and antenna radiators may be distributed along the edge of the director on a frame of the director near the electronic device. In another example, different portions of the frame near the director may be reused as the multiple conductive branches and antenna radiators.
[0090] It should be noted that the multiple conductive branches may be located in the same plane as the antenna radiator, or may be distributed in different planes from the antenna radiator.
[0091] For example, the plurality of conductive branches may be two or more, which is not limited in the embodiment of the present disclosure.
[0092] In the embodiment of the present disclosure, the director at least forms coupling energy toward multiple conductive branches and can guide them in the directions of multiple conductive branches respectively, so that the multiple conductive branches can transmit and receive wireless signals together with the antenna radiator.
[0093] For example, there are three conductive branches, two conductive branches are set in the first direction of the director, and one conductive branch is set in the second direction of the director. Then the director can guide in the first direction and the second direction, so that the three conductive branches can send and receive wireless signals together with the antenna radiator.
[0094] Here, the first direction and the second direction may be perpendicular to each other.
[0095] It can be understood that the director at least forms coupling energy toward multiple conductive branches, so that multiple conductive branches can all transmit and receive wireless signals. In this way, the direction of antenna radiation can be further dispersed and the radiation area of the antenna can be increased, thereby better expanding the bandwidth of the antenna and improving the antenna transceiver efficiency. In addition, the concentration of antenna radiation can be further reduced, so that the SAR high radiation area can be more dispersed, thereby not only minimizing the radiation to the human body, but also minimizing the communication experience by reducing the transmission power of the antenna module.
[0096] In some embodiments, as Figure 5a and Figure 5b As shown, the plurality of conductive branches 13 include:
[0097] The first conductive branch 131 and the antenna radiator 11 are distributed on different sides of the director 12;
[0098] The second conductive branch 132 and the antenna radiator 11 are distributed on the same side of the director 12;
[0099] The director 12 is used to guide the coupled energy toward the first conductive branch 131 and the second conductive branch 132 .
[0100] In the embodiment of the present disclosure, the director has a first side and a second side that are arranged opposite to each other, and also has a third side that is adjacent to the first side and the second side respectively.
[0101] The first conductive branch and the antenna radiator are distributed on different sides of the director, which may include: the first conductive branch is arranged on the first side, and the antenna radiator is arranged on the second side or the third side.
[0102] The second conductive branch and the antenna radiator are distributed on the same side of the director, which may include: the second conductive branch and the antenna radiator are both arranged on the first side, the second side or the third side.
[0103] In the disclosed embodiment, the director forms coupling energy toward the first conductive branch, thereby enabling the first conductive branch to couple with the director to transmit and receive wireless signals. The director forms coupling energy toward the second conductive branch, thereby enabling the second conductive branch to couple with the director to transmit and receive wireless signals.
[0104] It can be understood that by arranging the first conductive branch and the antenna radiator to be distributed on different sides of the director, and the second conductive branch and the antenna radiator to be distributed on the same side of the director, it is possible to distribute two conductive branches on different sides of the director, and then through coupling, the two conductive branches on different sides of the director can both transmit and receive wireless signals with the antenna radiator.
[0105] In this way, the setting of the conductive branches can be made more flexible, and the two conductive branches can better expand the antenna bandwidth and improve the antenna receiving and transmitting efficiency on the one hand, and reduce the radiation to the human body on the other hand, and improve the communication experience by reducing the transmission power of the antenna module.
[0106] In some embodiments, as Figure 5b As shown, the length of the director 12 along the first direction C is greater than the length of the director along the second direction D; the first direction C and the second direction D are perpendicular in a plane;
[0107] The first conductive branch 131 is provided on one side of the director along the first direction C;
[0108] The second conductive branch 132 and the antenna radiator 11 are spaced apart and arranged on one side of the director 12 along the second direction D.
[0109] In the embodiment of the present disclosure, Figure 5b As shown, the antenna radiator 11 is located between the first conductive branch 131 and the second conductive branch 132 .
[0110] The first conductive branch is arranged on one side of the director along the first direction. That is, the director can guide the coupled energy toward the first direction, thereby enabling the first conductive branch to couple with the director to transmit and receive wireless signals.
[0111] The second conductive branch is arranged on one side of the director along the second direction. That is, the director can guide the coupled energy toward the second direction, thereby enabling the second conductive branch to couple with the director to transmit and receive wireless signals.
[0112] It can be seen that when the antenna radiator transmits and receives wireless signals, the director can direct the coupled energy in the first direction and the second direction.
[0113] In the embodiment of the present disclosure, the first direction may include the length direction of the director, and the second direction may include the width direction of the director. For example, the first direction may be a vertical direction, and the second direction may be a horizontal direction.
[0114] As can be understood, the director, through coupling, can direct coupled energy in two perpendicular directions, enabling both the first and second conductive branches to transmit and receive wireless signals with the antenna radiator. This not only improves the antenna's bandwidth and transmit / receive efficiency, but also reduces radiation to the human body and enhances the communication experience by reducing the antenna module's transmit power.
[0115] In some embodiments, as Figure 5a As shown, each of the conductive branches 13 is located in a different plane from the director 12 and forms a first projection onto the plane where the director 12 is located;
[0116] The second projection formed by the director 12 in the direction of the first projection at least partially overlaps with the first projection.
[0117] In the embodiment of the present disclosure, each conductive branch can be arranged in the same plane and in a different plane from the director. Each conductive branch can also be arranged in different planes and in a different plane from the director.
[0118] The first projection and the director are located in the same plane, and the second projection formed by the director in the direction of the first projection at least partially overlaps with the first projection. In other words, the director and each conductive branch overlap in space. This allows each conductive branch to better couple with the director.
[0119] For example, Figure 5b As shown, the first conductive branch 131 can overlap with the short side of the director 12 in space, and the second conductive branch 132 can overlap with the long side of the director 122 in space.
[0120] In some embodiments, as Figure 5b As shown, the length of the director 12 along the first direction C and the length of the director 12 along the second direction D are both integer multiples of the wavelength of the wireless signal transmitted and received by the antenna radiator 11 .
[0121] In the embodiment of the present disclosure, when the first direction is the length direction of the director and the second direction is the width direction of the director, if the antenna radiator transmits and receives N78 frequency band wireless signals, the size of the director is an integer multiple of the wavelength of the N78 frequency band; if the antenna radiator transmits and receives N77 frequency band wireless signals, the size of the director is an integer multiple of the wavelength of the N77 frequency band; if the antenna radiator transmits and receives N79 frequency band wireless signals, the size of the director is an integer multiple of the wavelength of the N79 frequency band.
[0122] It should be noted that if Figure 5b As shown, the director may be formed with grooves and protrusions on the edge, and the length of the director along the first direction may be the maximum length of the director along the first direction; the length of the director along the second direction may be the maximum length of the director along the second direction.
[0123] It can be understood that setting the length of the director along the first direction and the length along the second direction to an integer multiple of the wavelength of the wireless signal received and transmitted by the antenna radiator can better realize the functions of spatial coupling excitation and guidance in the direction of at least one conductive branch.
[0124] In some embodiments, as Figure 5b As shown, the length of the director 12 along the second direction D is equal to the wavelength; and / or the length of the director 12 along the first direction C is 3 times the wavelength.
[0125] For example, if the antenna radiator transmits and receives N78 frequency band wireless signals, the length of the director along the second direction can be the wavelength of the N78 frequency band wireless signal, such as 9 mm; and the length of the director along the first direction is 3 times the wavelength of the N78 frequency band wireless signal, such as 25 mm.
[0126] In some embodiments, as Figure 5bAs shown, the distance between the director 12 and the antenna radiator 11 in the second direction D is less than 4 mm; and / or,
[0127] The distance between the director 12 and the antenna radiator 11 in the third direction is between 1 mm and 2 mm;
[0128] The third direction is perpendicular to the plane where the first direction C and the second direction D are located.
[0129] In the disclosed embodiment, based on a 3D plot of the antenna radiation direction, the director can be positioned as close as possible to the antenna radiator in the second direction. Here, the distance between the director and the antenna radiator in the second direction can be less than 4 mm. For example, the distance between the director and the antenna radiator in the second direction (e.g., horizontal direction) can be set to 2 mm.
[0130] In the embodiment of the present disclosure, the mainboard of the electronic device and the antenna radiator may be parallel in the third direction. A director is provided on a side of the mainboard facing away from the screen of the electronic device, and the director is at a different height from the antenna radiator in the third direction.
[0131] Here, the distance between the director and the antenna radiator in the third direction is between 1 mm and 2 mm. For example, the distance between the director and the antenna radiator in the third direction can be set to 1.3 mm.
[0132] It can be understood that the distance between the director and the antenna radiator in the second direction is less than 4 mm; and / or, the distance between the director and the antenna radiator in the third direction is between 1 mm and 2 mm, which enables the director to better realize the functions of spatial coupling excitation and guiding in the direction of at least one conductive branch.
[0133] The present disclosure further provides an electronic device, including:
[0134] frame;
[0135] The antenna module as described in one or more of the above embodiments;
[0136] The director of the antenna module is arranged in the space surrounded by the frame;
[0137] The frames at different positions in the frame are reused as the antenna radiator and at least one conductive branch of the antenna module.
[0138] In the disclosed embodiment, the antenna module's director is positioned within the space enclosed by the frame, with the frame bodies at different locations within the frame serving as the antenna module's antenna radiator and at least one conductive branch. In other words, the antenna radiator and at least one conductive branch can be positioned around the director.
[0139] It should be noted that, in order to better support the director, an antenna bracket can be provided to support the director. In some embodiments, the electronic device further comprises: a middle frame located within the space enclosed by the frame and having an antenna bracket formed thereon; the antenna bracket is used to support the director of the antenna module.
[0140] In other words, the disclosed embodiment can form the antenna bracket on the middle frame. Here, the middle frame can form the antenna bracket on the side of the electronic device's motherboard facing away from the electronic device's screen. This allows the director to be more reliably installed in the electronic device.
[0141] It is understandable that the electronic device includes the antenna module described in one or more of the above embodiments, and the director in the antenna module can couple the energy of the antenna radiator to at least one conductive branch, which not only disperses the directionality of the antenna radiation but also equivalently increases the radiation area of the antenna, thereby expanding the bandwidth of the antenna and improving the antenna transceiver efficiency. In addition, the director can couple the energy of the antenna radiator to at least one conductive branch, which can reduce the concentration of the antenna radiation, so that the SAR high radiation area can be more dispersed, thereby not only reducing the radiation to the human body, but also reducing the reduction of the antenna module's transmission power to meet SAR regulations and improving the communication experience. In addition, setting the antenna module as a frame antenna can effectively save the space occupied by the antenna module in the electronic device and improve the space utilization of the electronic device.
[0142] In some embodiments, the border comprises:
[0143] A first frame is provided on the top of the electronic device and is multiplexed as a first conductive branch of the antenna module;
[0144] a second frame connected to the first frame and arranged on a side of the electronic device;
[0145] Wherein, the frame body in the second frame close to the first frame is reused as the antenna radiator;
[0146] The frame body in the second frame away from the first frame is reused as the second conductive branch of the antenna module.
[0147] It can be understood that when arranging the antenna module in an electronic device, the first conductive branch can be set on the top of the electronic device, the second conductive branch can be set on the side of the electronic device, and the antenna radiator can be set between the first conductive branch and the second conductive branch.
[0148] Figure 6 6 is a block diagram of an electronic device according to an exemplary embodiment. For example, the electronic device 600 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.
[0149] Reference Figure 6 , the electronic device 600 may include one or more of the following components: a processing component 602 , a memory 604 , a power component 606 , a multimedia component 608 , an audio component 610 , an input / output (I / O) interface 612 , a sensor component 614 , and a communication component 616 .
[0150] The processing component 602 generally controls the overall operation of the electronic device 600, such as operations associated with at least one of display, phone calls, data communications, camera operation, and recording operations. The processing component 602 may include one or more processors 620 to execute instructions to perform all or part of the steps of the above-described method. In addition, the processing component 602 may include one or more modules to facilitate interaction between the processing component 602 and other components. For example, the processing component 602 may include a multimedia module to facilitate interaction between the multimedia component 608 and the processing component 602.
[0151] The memory 604 is configured to store various types of data to support operations on the electronic device 600. Examples of such data include at least one of the following: instructions for any application or method operating on the electronic device 600, contact data, phone book data, messages, pictures, and videos. The memory 604 can be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk.
[0152] The power supply component 606 provides power to various components of the electronic device 600. The power supply component 606 may include at least one of the following: a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the electronic device 600.
[0153] The multimedia component 608 includes a screen that provides an output interface between the electronic device 600 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, slides, and gestures on the touch panel. The touch sensor can not only sense the boundaries of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 608 includes a front camera and / or a rear camera. When the electronic device 600 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.
[0154] The audio component 610 is configured to output and / or input audio signals. For example, the audio component 610 includes a microphone (MIC), which is configured to receive external audio signals when the electronic device 600 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal can be further stored in the memory 604 or transmitted via the communication component 616. In some embodiments, the audio component 610 also includes a speaker for outputting audio signals.
[0155] I / O interface 612 provides an interface between processing component 602 and peripheral interface modules, such as a keyboard, click wheel, and buttons. These buttons may include, but are not limited to, a home button, volume buttons, a start button, and a lock button.
[0156] The sensor assembly 614 includes one or more sensors for providing various aspects of the status assessment of the electronic device 600. For example, the sensor assembly 614 can detect the open / closed state of the electronic device 600, the relative positioning of components, such as the display and keypad of the electronic device 600. The sensor assembly 614 can also detect changes in the position of the electronic device 600 or a component thereof, the presence or absence of user contact with the electronic device 600, the orientation or acceleration / deceleration of the electronic device 600, and changes in the temperature of the electronic device 600. The sensor assembly 614 can include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 614 can also include an optical sensor, such as a complementary metal oxide semiconductor (CMOS) or charge coupled device (CCD) image sensor, for use in imaging applications. In some embodiments, the sensor assembly 614 can also include, but is not limited to, at least one of the following: an accelerometer, a gyroscope, a magnetic sensor, a pressure sensor, and a temperature sensor.
[0157] The communication component 616 is configured to facilitate communication between the electronic device 600 and other devices in a wired or wireless manner. The electronic device 600 can access a wireless network based on a communication standard, such as Wi-Fi, 4G, 5G, or a combination thereof. In an exemplary embodiment, the communication component 616 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 616 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
[0158] In an exemplary embodiment, the electronic device 600 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components.
[0159] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 604 including executable instructions or a computer program, which can be executed by a processor 620 of the electronic device 600. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a compact disc read-only memory (CD-ROM), a magnetic tape, a floppy disk, an optical data storage device, etc.
[0160] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the claims.
[0161] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims
1. An antenna module, characterized in that: Antenna radiator; a director, spaced apart from the antenna radiator and capable of coupling with the antenna radiator; At least one conductive branch, each of the conductive branches being spaced apart from the director and the antenna radiator; Wherein, when the antenna radiator transmits and receives wireless signals, the director can direct the coupled energy obtained by coupling toward the direction of the at least one conductive branch, so that the at least one conductive branch transmits and receives the wireless signal.
2. The antenna module according to claim 1, wherein: There are multiple conductive branches; A plurality of conductive branches and the antenna radiator are respectively distributed along the edge of the director; The director is used to direct the coupled energy toward the direction of the plurality of conductive branches.
3. The antenna module according to claim 2, wherein: The plurality of conductive branches include: A first conductive branch is distributed on a different side of the director from the antenna radiator; A second conductive branch is distributed on the same side of the director as the antenna radiator; The director is used to direct the coupled energy toward the first conductive branch and the second conductive branch.
4. The antenna module according to claim 3, wherein: The length of the director along the first direction is greater than the length of the director along the second direction; the first direction is perpendicular to the second direction in a plane; The first conductive branch is provided on one side of the director along the first direction; The second conductive branch and the antenna radiator are spaced apart and arranged on one side of the director along the second direction.
5. The antenna module according to any one of claims 1 to 4, characterized in that: Each of the conductive branches is located in a different plane from the director, and forms a first projection onto the plane where the director is located; The second projection formed by the director in the direction of the first projection at least partially overlaps with the first projection.
6. The antenna module according to any one of claims 1 to 4, characterized in that: The length of the director along the first direction and the length of the director along the second direction are both integer multiples of the wavelength of the wireless signal transmitted and received by the antenna radiator.
7. The antenna module according to claim 6, wherein: The length of the director along the second direction is equal to the wavelength; and / or the length of the director along the first direction is 3 times the wavelength.
8. The antenna module according to any one of claims 1 to 4, characterized in that: The distance between the director and the antenna radiator in the second direction is less than 4 mm; and / or, The distance between the director and the antenna radiator in the third direction is between 1 mm and 2 mm; The third direction is perpendicular to the plane where the first direction and the second direction of the director are located.
9. The antenna module according to any one of claims 1 to 4, characterized in that: The director is composed of a flexible circuit board.
10. An electronic device, characterized in that: include: frame; The antenna module according to any one of claims 1 to 9; The director of the antenna module is arranged in the space surrounded by the frame; The frames at different positions in the frame are reused as the antenna radiator and at least one conductive branch of the antenna module.
11. The electronic device according to claim 10, characterized in that The frame includes: A first frame is provided on the top of the electronic device and is multiplexed as a first conductive branch of the antenna module; a second frame connected to the first frame and arranged on a side of the electronic device; Wherein, the frame body in the second frame close to the first frame is reused as the antenna radiator; The frame body in the second frame away from the first frame is reused as the second conductive branch of the antenna module.
12. The electronic device according to claim 10, wherein: The electronic device further comprises: a middle frame, located in the space surrounded by the frame and formed with an antenna bracket; The antenna bracket is used to carry the director of the antenna module.