Antenna enhancement accessory and communication system

Abstract

The invention provides an antenna enhancement accessory and a communication system. The antenna enhancement accessory is used for being matched with electronic equipment with an antenna device. The antenna enhancement accessory includes a conductive portion. The conductive part comprises a feed part, a first conductive sheet and a second conductive sheet, the feed part comprises a first connecting end and a second connecting end, the first conductive sheet is connected with the first connecting end, the second conductive sheet is connected with the second connecting end, and the first conductive sheet and the second conductive sheet are oppositely arranged and spaced in the first direction; the projections of the first conducting strip and the second conducting strip in the first direction are at least partially overlapped, and the length extension direction of the projection of the first conducting strip in the first direction is the same as the length extension direction of the projection of the second conducting strip in the first direction.

Description

Technical Field

[0001] The present application relates to the field of wireless communications, and in particular to an antenna enhancement accessory and a communication system. Background Art

[0002] In current handheld electronic devices, the frame is usually used as an antenna radiator, and the gap between the display part of the display and the frame is used as the clearance of the frame antenna radiator. However, as the display screen becomes larger, the gap between the display part of the display and the frame becomes narrower, and the performance of the antenna radiator is limited. In addition, when the frame of an electronic device is used as an antenna radiator and used for satellite communications (such as satellite short messages, satellite phones / calls), the requirements for the antenna's transmission power and receiving sensitivity are much higher than other antennas of the electronic device, such as cellular antennas, and the efficiency of the antenna is also limited by the narrow frame and high screen-to-body ratio of the electronic device. How to improve the performance of the antenna radiator of the electronic device without occupying the limited antenna setting space inside the electronic device, especially to improve the efficiency of the antenna to further improve the satellite communication experience has become a current research direction. Summary of the invention

[0003] The embodiments of the present application provide an antenna enhancement accessory and a communication system, aiming to provide an antenna enhancement accessory and a communication system that can effectively improve the performance of the antenna radiator of the electronic device when used in conjunction with the electronic device.

[0004] In a first aspect, an antenna enhancement accessory for use with an electronic device having an antenna device is provided. The antenna enhancement accessory includes a conductive portion. The conductive portion includes a feeder, a first conductive sheet, and a second conductive sheet, the feeder includes a first connection end and a second connection end, the first conductive sheet is connected to the first connection end, the second conductive sheet is connected to the second connection end, the first conductive sheet and the second conductive sheet are arranged opposite to each other and spaced in a first direction, the projections of the first conductive sheet and the second conductive sheet in the first direction at least partially overlap, and the length extension direction of the projection of the first conductive sheet along the first direction is the same as the length extension direction of the projection of the second conductive sheet along the first direction.

[0005] It can be understood that the conductive part of the antenna enhancement accessory in this embodiment includes a first conductive sheet and a second conductive sheet that are opposite and spaced apart in a first direction, and the first conductive sheet and the second conductive sheet have an overlapping portion in the first direction. When the antenna enhancement accessory is applied to an electronic device, the feeder is spaced apart from the first radiator of the electronic device. That is, there is no physical contact between the feeder and the first radiator. The feeder overlaps with the first position on the first radiator (that is, the point where the current of the first radiator is large). In this way, the first radiator can also couple with the feeder while working, so that the conductive part can generate vertically polarized radiation between the first conductive sheet and the second conductive sheet to enhance the system efficiency and radiation efficiency of the first radiator, thereby improving the gain of the first radiator. In other words, this embodiment cooperates with the antenna radiator (that is, the first radiator in this embodiment) on the frame of the electronic device by arranging an antenna enhancement accessory with a conductive part outside the electronic device, and couples the conductive part of the antenna enhancement accessory through the corresponding antenna radiator to widen the antenna aperture of the corresponding antenna radiator, so that the system efficiency and radiation efficiency of the corresponding antenna radiator can be effectively improved without occupying the limited antenna setting space inside the electronic device, thereby improving the antenna performance.

[0006] Secondly, the first radiator can form a composite antenna together with the conductive part of the antenna enhancement accessory. The composite antenna can generate two resonances within its operating frequency band to form a composite antenna mode. Among them, the operating frequency band of the composite antenna can cover the first frequency band and the second frequency band. The frequencies of the two resonance points of the composite antenna can correspond to the center frequencies of the first frequency band and the second frequency band, respectively. At this time, the first radiator and the conductive part can both serve as the main radiators of the composite antenna, and the currents of both are relatively strong. The two resonances generated by the composite antenna are relatively close, so that a broadband resonance can be formed. That is, the effective bandwidth of the composite antenna is wider and the antenna performance is better.

[0007] In a possible implementation, the connection point between the feeder and the first conductive sheet is a first connection point, and in the length extension direction of the first conductive sheet, the first conductive sheet is divided into a first long arm and a first short arm at the first connection point, and the length of the first long arm is greater than the length of the first short arm; the connection point between the feeder and the second conductive sheet is a second connection point, and in the length extension direction of the second conductive sheet, the second conductive sheet is divided into a second long arm and a second short arm at the second connection point, and the length of the second long arm is greater than the length of the second short arm; the first long arm and the second short arm are arranged opposite to each other, and the first short arm and the second long arm are arranged opposite to each other.

[0008] It is understandable that the first radiator can also be used to receive satellite signals and send signals to the satellite system to realize satellite system-related functions such as satellite messaging or satellite phone calls of electronic devices. However, when a user uses an electronic device for satellite messaging and / or satellite calls, an interaction of radiation signals will occur between the electronic device and the satellite system. Among them, the polarization characteristic of the radiation generated by the satellite system is circular polarization. The first radiator will receive electromagnetic waves from the satellite, and the polarization characteristic of the electromagnetic waves is circular polarization. The satellite system will receive electromagnetic waves from the electronic device, and the polarization characteristic of the electromagnetic waves is linear polarization. This causes the first radiator to generate large losses when receiving radiation signals from the satellite, and the satellite system to generate large losses when receiving radiation signals from the electronic device, resulting in an increase in the power consumption of the first radiator, and at the same time, it will reduce the signal transmission rate of the first radiator, affecting the user experience.

[0009] In this embodiment, the first conductive sheet can be divided into a first long arm with a longer length and a first short arm with a shorter length by the first connection point, and the second conductive sheet can be divided into a second long arm with a longer length and a second short arm with a shorter length by the second connection point, and the first long arm can be arranged opposite to the first short arm, and the first short arm can be arranged opposite to the second long arm, that is, the first conductive sheet and the second conductive sheet can be arranged anti-symmetrically with each other. When the antenna enhancement radiator is applied to the electronic device, the first radiator couples the conductive part to generate vertical polarized radiation between the first conductive sheet and the second conductive sheet, and the electric field component between the first conductive sheet and the second conductive sheet generates a phase difference. In this way, the horizontal polarized radiation generated by the first radiator and the vertical polarized radiation generated by the conductive part can form circular polarized radiation after superposition, so that the signal loss of the first radiator of the electronic device when communicating with the satellite system can be effectively reduced, and the signal transmission rate between the two can be improved, which is conducive to improving the use experience of satellite messaging and / or satellite phone and other satellite system-related functions of the electronic device. Among them, compared with the first radiator working alone, when the first radiator works in conjunction with the antenna enhancement accessory, its peak gain, system efficiency and radiation efficiency are effectively improved.

[0010] In one possible implementation, the antenna enhancement accessory is used to operate within the communication frequency band of satellite messaging and / or satellite phone calls. In this way, when the antenna enhancement accessory is applied to an electronic device, the antenna enhancement accessory does not occupy the internal space of the electronic device, so that the antenna enhancement accessory can effectively improve the efficiency of the antenna, meet the power requirements and receiving sensitivity requirements of the antenna during satellite communication, and is not limited by the narrow frame and high screen-to-body ratio of the electronic device.

[0011] In a possible implementation, the length of the first long arm is equal to the length of the second long arm. In this way, the composite antenna formed by the conductive part of the antenna enhancement accessory and the first radiator of the electronic device has better antenna performance.

[0012] In a possible implementation, the length of the first conductive sheet is equal to the length of the second conductive sheet. In this way, the composite antenna formed by the conductive part of the antenna enhancement accessory and the first radiator of the electronic device has better antenna performance.

[0013] In a possible implementation, the portion of the second conductive sheet that is projected along the first direction and covers the first conductive sheet is the first overlapping portion, and the feeding element is connected to the first overlapping portion. In this way, the first radiator can better couple with the conductive portion, so that the conductive portion generates vertically polarized radiation.

[0014] In a possible implementation, the ratio of the area of ​​the first overlapping portion to the area of ​​the first conductive sheet is in the range of 0.1 to 0.9. In this way, the composite antenna formed by the conductive portion of the antenna enhancement accessory and the first radiator of the electronic device has better antenna performance.

[0015] In a possible implementation, the direction in which the first connection end of the feeder points to the second connection end is parallel to the first direction. In this way, the composite antenna formed by the conductive part of the antenna enhancement accessory and the first radiator of the electronic device has better antenna performance.

[0016] In a possible implementation, the length extension direction of the first conductive sheet is parallel to the length extension direction of the projection of the first conductive sheet along the first direction. In this way, the length extension direction of the first conductive sheet can be perpendicular to the first direction, thereby reducing the size of the entire conductive part in the first direction.

[0017] In a possible implementation, the first conductive sheet is parallel to the second conductive sheet. In this way, the first conductive sheet is parallel to the second conductive sheet, which is conducive to improving the radiation performance of the conductive part, so that the antenna performance of the composite antenna formed by the conductive part of the antenna enhancement accessory and the first radiator of the electronic device is better.

[0018] In one possible implementation, the antenna enhancement accessory further includes a non-conductive portion, and the conductive portion is embedded in the non-conductive portion; or, at least a portion of the surface of the conductive portion is exposed relative to the non-conductive portion. It is understandable that the antenna enhancement accessory of this embodiment may also include a non-conductive portion, and the conductive portion is embedded in the non-conductive portion, or at least a portion of the surface of the conductive portion is exposed relative to the non-conductive portion. In this way, the non-conductive portion can protect the conductive portion and prevent the outside from directly contacting the conductive portion and affecting the radiation performance of the conductive portion.

[0019] In a possible implementation, part of the non-conductive part is filled between the first conductive sheet and the second conductive sheet. This is equivalent to adding capacitance in the area where the electric field of the conductive part is larger, thereby effectively shortening the size of the conductive part in the third direction, which is conducive to realizing the narrow setting of the antenna enhancement accessory.

[0020] In a possible implementation, the dielectric constant of the non-conductive part is within the range of 2 to 80. In this way, the dielectric constant of the non-conductive part is greater than the dielectric constant of air. Compared with the antenna enhancement accessory that does not include the non-conductive part, a part of the non-conductive part in this embodiment can be filled between the first conductive sheet and the second conductive sheet, so that the capacitance can be increased in the area where the electric field of the conductive part is larger, and the size of the conductive part in the third direction can be effectively shortened, which is conducive to the narrow setting of the antenna enhancement accessory.

[0021] In a possible implementation, the non-conductive portion is used to be sleeved on the outside of the frame of the electronic device, the frame of the electronic device is provided with a first radiator, and the conductive portion is located outside the first radiator and is spaced apart from the first radiator. In this way, the conductive portion is close to the first radiator, and the coupling amount between the two is large, which is conducive to improving the antenna performance of the composite antenna formed by the conductive portion and the first radiator.

[0022] In a possible implementation, the antenna enhancement accessory is in the shape of a long strip, and is used to be fixed to the outside of the frame of the electronic device, the frame is provided with a first radiator, and the conductive part is located outside the first radiator and is spaced apart from the first radiator. In this way, the conductive part is close to the first radiator, and the coupling amount between the two is large, which is conducive to improving the antenna performance of the composite antenna formed by the conductive part and the first radiator.

[0023] In one possible implementation, the feeding element includes a first connecting part, a coupling part and a second connecting part, the coupling part connects the first connecting part and the second connecting part, the coupling part is used to couple with a first radiator of an antenna device of an electronic device, the first connecting part is connected to the first conductive sheet, the second connecting part is connected to the second conductive sheet, and at least one of the first connecting part and the second connecting part is bent.

[0024] It can be understood that in this embodiment, by bending at least one of the first connection part and the second connection part, the total length of the feeder itself between the first connection point and the second connection point can be extended. In this way, it is equivalent to adding inductance to the area with a larger current of the conductive part (i.e., the feeder), thereby effectively shortening the size of the conductive part in the third direction, which is conducive to realizing the narrow setting of the antenna enhancement accessory.

[0025] In a second aspect, a communication system is provided. The communication system includes an electronic device having an antenna device and the above-mentioned antenna enhancement accessory, the antenna enhancement accessory is fixed to the outside of the frame of the electronic device, the antenna device has a first radiator, the first radiator is formed by a part of the frame, or the first radiator is fixed to the inside of the frame, the feeder is located on the outside of the first radiator and is spaced apart from the first radiator, and the first radiator is used to communicate in a first frequency band.

[0026] It can be understood that the electronic device in this embodiment cooperates with the antenna enhancement accessory to form a communication system. The first radiator and the conductive part of the antenna enhancement accessory can together form a composite antenna. When the composite antenna radiates in its operating frequency band, the composite antenna can generate two resonances to form a composite antenna mode. Among them, the operating frequency band of the composite antenna can at least cover the first frequency band. At this time, the first radiator and the conductive part can both serve as the main radiator of the composite antenna, and the currents of both are relatively strong. The two resonances generated by the composite antenna are relatively close, so that a broadband resonance can be formed. That is, the effective bandwidth of the composite antenna is wider and the antenna performance is better. Among them, the two resonances are relatively close means that the intersection of the two resonances is below -6db, and the frequency difference between the resonance points of the two resonances is within 300MHz.

[0027] Secondly, the conductive part of the antenna enhancement accessory in this embodiment includes a first conductive sheet and a second conductive sheet that are opposite and spaced apart in a first direction, and the first conductive sheet and the second conductive sheet have an overlapping portion in the first direction. The feeder is spaced apart from the first radiator. That is, there is no physical contact between the feeder and the first radiator. The feeder overlaps with the first position on the first radiator (that is, the point where the current of the first radiator is large). In this way, the first radiator can also couple with the feeder while working, so that the conductive part can generate vertically polarized radiation between the first conductive sheet and the second conductive sheet to enhance the system efficiency and radiation efficiency of the first radiator, thereby improving the gain of the first radiator. In other words, this embodiment provides an antenna enhancement accessory with a conductive part outside the electronic device to cooperate with the antenna radiator (that is, the first radiator in this embodiment) on the frame of the electronic device, and couples the conductive part of the antenna enhancement accessory through the corresponding antenna radiator to widen the antenna aperture of the corresponding antenna radiator, so that the system efficiency and radiation efficiency of the corresponding antenna radiator can be effectively improved without occupying the limited antenna setting space inside the electronic device, thereby improving the antenna performance.

[0028] In a possible implementation, the conductive part is spaced apart from the first radiator, the first direction of the antenna enhancement accessory is parallel to the thickness direction of the electronic device, and the second direction of the antenna enhancement accessory is parallel to the length extension direction of the first radiator; a feeding point is provided on the first radiator, the feeding point is used to feed the first radiator, the first radiator is used to couple the feeding element when feeding, and the antenna enhancement accessory is used to support communication in the first frequency band. In this way, the antenna enhancement accessory can enhance the radiation performance of the first radiator, and the composite antenna formed by the conductive part of the antenna enhancement accessory and the first radiator of the electronic device has better antenna performance.

[0029] In a possible implementation, the first frequency band corresponds to a communication frequency band of satellite messaging and / or satellite telephony. In this way, the communication system can also be used for satellite messaging and / or satellite telephony, and the communication system has a wider application scenario and a better user experience.

[0030] In a possible implementation, the frame includes a first short side and a first long side that are adjacent to each other, the first short side is located on the top of the electronic device, and the first radiator is formed on the first short side, or the first radiator is fixed on the inner side of the first short side.

[0031] It is understandable that the first radiator in this embodiment can be arranged on the first short side. When the user holds the electronic device, the first short side can face the sky, that is, the first radiator can face the sky, and the first radiator can be used to receive satellite signals and send signals to the satellite system to realize satellite system-related functions such as satellite messaging or satellite phone of the electronic device.

[0032] In a possible implementation, the first radiator includes a first end and a second end, both of which are open ends, and the first radiator has a first position, the first position is located between the first end and the second end, and the first position is a physical length of the first radiator that is 0.5 times the distance from the geometric center of the first radiator in the first radiator; the distance between the projection of the feed element along the third direction of the antenna enhancement accessory and the first position is less than or equal to 0.2 times the first medium wavelength, and the first medium wavelength is the medium wavelength of the center frequency point of the first radiator in the first frequency band.

[0033] It can be understood that the first position of the first radiator in this embodiment can be a position with a larger current in the first radiator, that is, a point with a larger current. The feeder of the conductive part can be set directly opposite to the point with a larger current of the first radiator. In this way, the coupling amount between the feeder and the first radiator is large, which is conducive to improving the antenna performance of the composite antenna formed by the conductive part of the antenna enhancement accessory and the first radiator of the electronic device.

[0034] In one possible implementation, the first radiator includes a first end and a second end, the first end is an open end, and the second end is a grounded end; the distance between the projection of the feeding element along the third direction of the antenna enhancement accessory and the second end is less than or equal to 0.2 times the first medium wavelength, and the first medium wavelength is the medium wavelength of the first radiator at the center frequency point of the first frequency band.

[0035] In this way, the feeding element of the conductive part can be set directly opposite the larger current point of the first radiator, and the distance between the feeding element of the conductive part and the first radiator is relatively close, so the coupling amount between the two is relatively large, which is beneficial to improving the antenna performance of the composite antenna formed by the conductive part of the antenna enhancement accessory and the first radiator of the electronic device.

[0036] In one possible implementation, the first radiator is also used for communication in a second frequency band, and the antenna enhancement accessory is also used to support communication in the second frequency band. The center frequency of the first frequency band is a first frequency, and the center frequency of the second frequency band is a second frequency. The second frequency is higher than the first frequency, and the ratio of the second frequency to the first frequency is a first value R1; the ratio of the length of the first long arm of the antenna enhancement accessory to the length of the first short arm of the antenna enhancement accessory is in the range of 0.9×R1 and 1.1×R1.

[0037] It can be understood that, in the present embodiment, the ratio of the length of the first long arm to the second long arm is in the range of 0.9×R1 to 1.1×R1, that is, the ratio of the length of the first long arm to the second long arm can be approximately equal to the ratio of the second frequency to the first frequency. In this way, when the communication system operates in the first frequency band, the first radiator can couple the feeder of the conductive part at the first position. The conductive part can be used to support the communication of the first radiator in the first frequency band. At this time, the current density on the first short arm and the second short arm is large, and the current density on the first long arm and the second long arm is small. When the communication system operates in the second frequency band, the first radiator can couple the feeder of the conductive part at the first position. The conductive part can be used to support the communication of the first radiator in the second frequency band. At this time, the current density on the first long arm and the second long arm is small, and the current density on the first short arm and the second short arm is large. In other words, in this embodiment, by setting the ratio of the length of the first long arm to the length of the second long arm to be approximately equal to the ratio of the second frequency to the first frequency, when the antenna enhancement accessory is used to support the first frequency band communication, the current density of the first long arm and the second long arm is greater than the current density of the first short arm and the second short arm, thereby forming corresponding circularly polarized radiation. Similarly, when the antenna enhancement accessory is used to support the second frequency band communication, the current density of the first short arm and the second short arm can be greater than the current density of the first long arm and the second long arm, thereby forming corresponding circularly polarized radiation, which is beneficial to improving the antenna performance of the composite antenna formed by the conductive part of the antenna enhancement accessory and the first radiator of the electronic device.

[0038] In one possible implementation, in the third direction of the antenna enhancement accessory, the distance between any point on the surface of the feeding element facing the first radiator and the first radiator is greater than 0 and less than or equal to 0.0025 times the first medium wavelength, and the first medium wavelength is the medium wavelength of the center frequency of the first radiator in the first frequency band.

[0039] It can be understood that the feeding element in this embodiment can be arranged at an interval with the first radiator, while the distance between the feeding element and the first radiator is relatively close, the coupling amount between the feeding element and the first radiator is relatively large, and the radiation performance of the conductive part is relatively good, which is beneficial to improving the antenna performance of the composite antenna formed by the conductive part of the antenna enhancement accessory and the first radiator of the electronic device.

[0040] In a possible implementation, the length of the conductive portion is in the range of 0.4 to 0.6 times the wavelength of the first medium, where the first medium wavelength is the medium wavelength of the center frequency of the first radiator in the first frequency band. In this way, when the length of the conductive portion is within a certain range, the composite antenna formed by the conductive portion of the antenna enhancement accessory and the first radiator of the electronic device has better antenna performance.

[0041] In a possible implementation, the space between the first overlapping portion of the first conductive sheet and the second overlapping portion of the second conductive sheet is the first space, the size of the first space in the first direction of the antenna enhancement accessory is the first size, the size of the first space in the third direction of the antenna enhancement accessory is the second size, the sum of the first size and the second size is in the range of 0.29 to 0.31 times the wavelength of the first medium, the second size is greater than or equal to 0.08 times the wavelength of the first medium, and the first medium wavelength is the medium wavelength of the center frequency of the first radiator in the first frequency band; wherein the portion of the projection of the first conductive sheet along the first direction covering the second conductive sheet is the second overlapping portion. In this way, the conductive portion of the antenna enhancement accessory can have a smaller size while having better radiation performance, which is conducive to realizing the miniaturization of the antenna enhancement accessory. At the same time, the composite antenna formed by the conductive portion of the antenna enhancement accessory and the first radiator of the electronic device has better antenna performance.

[0042] In a possible implementation, the first radiator is also used for communication in the second frequency band, and the antenna enhancement accessory is also used to support communication in the second frequency band, the center frequency of the first frequency band is the first frequency, the center frequency of the second frequency band is the second frequency, the second frequency is higher than the first frequency, and is less than or equal to 1.5 times the first frequency. In this way, the two resonances are relatively close, so that a broadband resonance can be formed, so that the effective bandwidth of the composite antenna formed by the conductive part of the antenna enhancement accessory and the first radiator of the electronic device is relatively wide, which is conducive to improving the antenna performance of the composite antenna.

[0043] In a possible implementation, the distance from any point on the surface of the first conductive sheet facing the second conductive sheet to the second conductive sheet is in the range of 0.6 to 1.4 times the first dimension. In this way, the conductive part has a smaller dimension in the first direction, which is conducive to realizing a thin configuration of the antenna enhancement accessory.

[0044] In one possible implementation, the conductive part has a first end face and a second end face arranged opposite to each other in the second direction of the antenna enhancement accessory, and the feeding element has a first edge and a second edge arranged opposite to each other in the second direction of the antenna enhancement accessory, the first edge is arranged closer to the first end face than the second edge, and the spacing between the first edge and the first end face in the second direction of the antenna enhancement accessory is greater than or equal to 0.1 times the first dielectric wavelength; and / or, the spacing between the second edge and the second end face in the second direction of the antenna enhancement accessory is greater than or equal to 0.1 times the first dielectric wavelength; wherein the first dielectric wavelength is the dielectric wavelength of the center frequency point of the first radiator in the first frequency band.

[0045] It can be understood that the feeder in this embodiment has a larger current facing the first radiator, and the coupling effect with the first radiator is better. At the same time, the feeder will not shield the frame slots at both ends of the first radiator, thereby preventing the feeder from affecting the normal operation of the original antenna radiator on the frame. Secondly, while ensuring sufficient coupling with the first radiator, the feeder has a narrower width in the second direction, thereby extending the current length of the resonant current from the first conductive plate to the feeder and then to the second conductive plate. When the resonant frequency of the communication system is constant, the size of the first conductive plate and the second conductive plate in the third direction can be reduced by reducing the width of the feeder in the second direction, which is conducive to the narrow setting of the antenna enhancement accessories. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions in the implementation methods of the present application or the background technology, the drawings required for use in the implementation methods of the present application or the background technology will be described below.

[0047] Figure 1 is a schematic diagram of the structure of an electronic device provided in some embodiments of the present application;

[0048] Figure 2 yes Figure 1 The illustrated electronic device is a partially exploded schematic diagram of the structure in some embodiments;

[0049] Figure 3 yes Figure 1 A schematic diagram of a portion of the structure of the electronic device shown;

[0050] Figure 4 yes Figure 3A partially enlarged schematic diagram of the structure shown;

[0051] Figure 5a yes Figure 4 A schematic structural diagram of the first radiator, a portion of the first short side and a portion of the floor shown;

[0052] Figure 5b yes Figure 5a The structure shown is a schematic diagram of a cross-sectional structure in an embodiment cut along AA;

[0053] Figure 6a yes Figure 4 The structure shown is a schematic diagram of another embodiment of the structure;

[0054] Figure 6b yes Figure 6a The structure shown is a schematic diagram of a structure in yet another embodiment;

[0055] Figure 7a yes Figure 1 A schematic diagram of the assembly structure of an electronic device and an antenna enhancement accessory provided by the present application in some embodiments;

[0056] Figure 7b yes Figure 7a The structure shown is a schematic diagram of the structure in other embodiments;

[0057] Figure 8a yes Figure 7a A partially enlarged schematic diagram of the structure of the communication system shown at B;

[0058] Figure 8b yes Figure 8a A schematic diagram of the structure shown in another perspective;

[0059] Figure 8c yes Figure 7a A partially enlarged schematic diagram of the structure of the communication system shown at B;

[0060] Fig. 9 yes Figure 8c A schematic structural diagram of the conductive part of the antenna enhancement accessory shown in another viewing angle;

[0061] Fig.10 yes Fig. 9 A schematic structural diagram of the conductive part of the antenna enhancement accessory shown in another viewing angle;

[0062] Fig.11 yes Figure 8b A schematic diagram of a portion of the structure shown in another viewing angle;

[0063] Fig.12a yes Figure 8bThe structure shown is a partial cross-sectional structural schematic diagram of an embodiment cut along CC;

[0064] Figure 12b yes Figure 8b The structure shown is a partial cross-sectional structural schematic diagram of an embodiment cut along CC;

[0065] Fig.13a yes Fig.11 The structure shown is a schematic diagram of the current direction and the electric field direction when the first radiator works in the first frequency band;

[0066] Fig.13b yes Fig.11 The structure shown is a schematic diagram of the current direction and the electric field direction when the first radiator works in the first frequency band;

[0067] Fig.13c yes Fig.11 The structure shown is a simulation schematic diagram of the electric field direction when the first radiator works in the first frequency band;

[0068] Fig.14a yes Fig.11 The structure shown is a schematic diagram of the current direction and the electric field direction when the first radiator operates in the second frequency band;

[0069] Fig.14b yes Fig.11 The structure shown is a schematic diagram of the current direction and the electric field direction when the first radiator operates in the second frequency band;

[0070] Fig.14c yes Fig.11 The structure shown is a simulation schematic diagram of the electric field direction when the first radiator operates in the second frequency band;

[0071] Fig.15a yes Figure 7a A schematic diagram of a simulation comparing the communication system and an electronic device not equipped with an antenna enhancement accessory.

[0072] Fig.15b yes Figure 7a A schematic diagram of simulation comparing the end-fire peak gain of the communication system shown and the electronic device not matched with the antenna enhancement accessory;

[0073] Fig.16 yes Figure 7a A schematic diagram of simulation comparing the system efficiency and radiation efficiency of the communication system shown and the electronic device not matched with the antenna enhancement accessory;

[0074] Fig.17 yes Fig.11 The structure shown is a schematic diagram of the structure in some embodiments;

[0075] Fig.18 yes Fig.11 The structure shown is a schematic diagram of the structure in some other embodiments;

[0076] Fig.19 yes Figure 8b The structure shown is a schematic diagram of another embodiment of the structure;

[0077] Fig. 20 yes Fig.19 The structure shown is a schematic diagram of a cross-sectional structure in an embodiment cut along DD;

[0078] Fig.21 yes Fig.19 The structure shown is a schematic diagram of the structure in other embodiments. DETAILED DESCRIPTION

[0079] The embodiments of the present application are described below in conjunction with the accompanying drawings in the embodiments of the present application.

[0080] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed connection" means that the relative position relationship after connection remains unchanged. "Rotational connection" means that the two are connected to each other and can rotate relative to each other after connection. "Sliding connection" means that the two are connected to each other and can slide relative to each other after connection. The directional terms mentioned in the embodiments of the present application, such as "up", "down", "left", "right", "inside", "outside", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. "Multiple" means at least two.

[0081] In the embodiments of the present application, the terms "first", "second", "third", and "fourth" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first", "second", "third", and "fourth" may explicitly or implicitly include one or more of the features.

[0082] In the implementation manner of the present application, "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0083] References to "one embodiment" or "some embodiments" etc. described in this specification mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Thus, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0084] Connected / connected: can refer to a mechanical connection relationship or a physical connection relationship, that is, A and B are connected or A and B are connected, which can mean that there is a fastening component (such as screws, bolts, rivets, etc.) between A and B, or A and B are in contact with each other and A and B are difficult to separate.

[0085] Coupling: can be understood as direct coupling and / or indirect coupling, and "coupled connection" can be understood as direct coupling connection and / or indirect coupling connection. Direct coupling can also be called "electrical connection", which is understood as the physical contact and electrical conduction between components; it can also be understood as the connection between different components in the circuit structure through physical lines such as printed circuit board (PCB) copper foil or wires that can transmit electrical signals; "indirect coupling" can be understood as two conductors being electrically conductive in an airless / non-contact manner. In one embodiment, indirect coupling can also be called capacitive coupling, for example, signal transmission is achieved by coupling between the gaps between two conductive parts to form an equivalent capacitor.

[0086] Relative / opposite arrangement: A and B are oppositely arranged, which may mean that A and B are arranged face to face (oppos ite to, or face to face). For example, when two radiators are oppositely arranged, the two radiators are arranged to overlap at least partially in a certain direction. In one embodiment, the two oppositely arranged radiators are arranged adjacent to each other and no other radiators are arranged between them, and no conductive body other than the antenna structure is arranged between them.

[0087] Capacitance: It can be understood as lumped capacitance and / or distributed capacitance. Lumped capacitance refers to capacitive components, such as capacitors; distributed capacitance (or distributed capacitance) refers to the equivalent capacitance formed by two conductive parts separated by a certain gap.

[0088] Inductance: It can be understood as lumped inductance and / or distributed inductance. Lumped inductance refers to inductive components, such as inductors; distributed inductance (or distributed inductance) refers to the equivalent inductance formed by a certain length of conductive parts, such as the equivalent inductance formed by the conductor due to curling or rotation.

[0089] Radiator, or antenna branch: is a device in the antenna used to receive / send electromagnetic wave radiation. In some cases, the narrow sense of "antenna" is to be understood as a radiator, which converts the waveguide energy from the transmitter into radio waves, or converts radio waves into waveguide energy, which is used to radiate and receive radio waves. The modulated high-frequency current energy (or waveguide energy) generated by the transmitter is transmitted to the transmitting radiator via the feeder line, and is converted into a certain polarized electromagnetic wave energy by the radiator and radiated in the desired direction. The receiving radiator converts a certain polarized electromagnetic wave energy from a specific direction in space into modulated high-frequency current energy, which is transmitted to the receiver input via the feeder line.

[0090] The radiator (or antenna branch) may include a conductor with a specific shape and size, such as a linear or sheet shape, etc. The present application does not limit the specific shape. In one embodiment, the linear radiator may be referred to as a linear antenna. In one embodiment, the linear radiator may be implemented by a conductive frame, and may also be referred to as a frame antenna. In one embodiment, the linear radiator may be implemented by a bracket conductor, and may also be referred to as a bracket antenna. In one embodiment, the linear radiator, or the radiator of the linear antenna, has a wire diameter (e.g., including thickness and width) much smaller than the wavelength (e.g., the dielectric wavelength) (e.g., less than 1 / 16 of the wavelength), and the length may be comparable to the wavelength (e.g., the dielectric wavelength) (e.g., the length is about 1 / 8 of the wavelength, or 1 / 8 to 1 / 4, or 1 / 4 to 1 / 2, or longer). The main forms of linear antennas include dipole antennas, half-wave dipole antennas, monopole antennas, loop antennas, and inverted F antennas (also known as IFA, Inverted F Antenna). For example, for a dipole antenna, each dipole antenna generally includes two radiating branches, and each branch is fed by a feeding unit from the feeding end of the radiating branch. For example, an inverted-F antenna (IFA) can be regarded as a monopole antenna with a ground path added. The IFA antenna has a feeding point and a grounding point, and is called an inverted F antenna because its side view is an inverted F shape. In one embodiment, the sheet radiator may include a microstrip antenna, or a patch antenna, such as a planar inverted F antenna (also known as PIFA, Planar Inverted F Antenna). In one embodiment, the sheet radiator may be implemented by a planar conductor (such as a conductive sheet or a conductive coating, etc.). In one embodiment, the sheet radiator may include a conductive sheet, such as a copper sheet, etc. In one embodiment, the sheet radiator may include a conductive coating, such as a silver paste, etc. The shape of the sheet radiator includes a circle, a rectangle, a ring, etc., and the present application does not limit the specific shape. The structure of the microstrip antenna is generally composed of a dielectric substrate, a radiator and a floor, wherein the dielectric substrate is arranged between the radiator and the floor.

[0091] The radiator (or antenna branch) may also include a slot or a slit formed on the conductor, for example, a closed or semi-closed slot or slit formed on the grounded conductor surface. In one embodiment, a slotted or slit radiator may be referred to as a slot antenna or a slot antenna. In one embodiment, the radial dimension (for example, including the width) of the slot or slit of the slot antenna / slot antenna is much smaller than the wavelength (for example, the dielectric wavelength) (for example, less than 1 / 16 of the wavelength), and the length dimension may be comparable to the wavelength (for example, the dielectric wavelength) (for example, the length is about 1 / 8 of the wavelength, or 1 / 8 to 1 / 4, or 1 / 4 to 1 / 2, or longer). In one embodiment, a radiator with a closed slot or slit may be referred to as a closed slot antenna. In one embodiment, a radiator with a semi-closed slot or slit (for example, an opening is added to a closed slot or slit) may be referred to as an open slot antenna. In some embodiments, the slot shape is a long strip. In some embodiments, the length of the slot is about half a wavelength (for example, the dielectric wavelength). In some embodiments, the length of the slot is about an integer multiple of the wavelength (for example, one times the dielectric wavelength). In some embodiments, the slot can be fed by a transmission line connected across one or both sides thereof, thereby exciting a radio frequency electromagnetic field on the slot and radiating electromagnetic waves into space. In one embodiment, the radiator of the slot antenna or slot antenna can be realized by a conductive frame with both ends grounded, which can also be called a frame antenna; in this embodiment, it can be regarded as that the slot antenna or slot antenna includes a linear radiator, which is spaced apart from the floor and grounded at both ends of the radiator, thereby forming a closed or semi-closed slot or slot. In one embodiment, the radiator of the slot antenna or slot antenna can be realized by a bracket conductor with both ends grounded, which can also be called a bracket antenna.

[0092] The feed source / feed circuit is a combination of all circuits used for receiving and transmitting radio frequency signals. The feed circuit may include a transceiver and an RF front end circuit. In some cases, the "feed circuit" is understood in a narrow sense as a radio frequency chip (RFIC, Radio Frequency Integrated Circuit), and RFIC can be considered to include an RF front end chip and a transceiver. The feed circuit has the function of converting radio waves (e.g., radio frequency signals) and electrical signals (e.g., digital signals). Generally, it is considered to be part of the radio frequency.

[0093] In some embodiments, the electronic device may further include a test socket (or referred to as a radio frequency socket or a radio frequency test socket). The test socket may be used to insert a coaxial cable to test the characteristics of the radio frequency front-end circuit or the radiator of the antenna through the cable. The radio frequency front-end circuit may be considered as a circuit portion coupled between the test socket and the transceiver.

[0094] In some embodiments, the RF front-end circuit may be integrated into a RF front-end chip in the electronic device, or the RF front-end circuit and the transceiver may be integrated into a RF chip in the electronic device.

[0095] It should be understood that any two of the first / second / …Nth feeding circuits in the present application can share the same transceiver, for example, transmitting signals through a RF channel in a transceiver (for example, a port (pin) of a RF chip); they can also share a RF front-end circuit, for example, processing signals through a switch or amplifier in a RF front-end.

[0096] It should also be understood that two feeding circuits in the first / second / ...Nth feeding circuits in the present application usually correspond to two radio frequency test sockets in the electronic device.

[0097] The matching circuit is a circuit related to adjusting the radiation characteristics of the antenna. In one embodiment, the matching circuit is coupled between the feed circuit and the corresponding radiator. Usually, the matching circuit is coupled between the test socket and the radiator. In one embodiment, the matching circuit has the function of impedance matching and / or frequency tuning. Usually, it is considered to be a part of the antenna.

[0098] The tuning circuit is a circuit related to adjusting the resonant frequency of the antenna. In one embodiment, the tuning circuit is coupled between the radiator and the floor. In one embodiment, the tuning circuit is coupled between the feeding circuit and the radiator. In one embodiment, the tuning circuit has the function of impedance matching and / or frequency tuning. Generally, it is considered to be a part of the antenna.

[0099] In one embodiment, the matching circuit / tuning circuit may include a switch and / or an electronic component / device, and the switch may be an electronic component / device for switching the coupling connection of the radiator. The switch in the matching circuit / tuning circuit may also be referred to as an antenna switch. In one embodiment, the matching circuit / tuning circuit may include a filtering circuit.

[0100] Grounding structure / feeding structure, the grounding structure / feeding structure may include a connector, such as a metal spring, and the radiator is coupled to the floor through the grounding structure / feeding structure is coupled to the feeding circuit. In some embodiments, the feeding structure may include a transmission line / feeding line, and the grounding structure may include a grounding line. The feeder line, also called a transmission line, refers to the connecting line between the transceiver of the antenna and the radiator. The transmission line can directly transmit current waves or electromagnetic waves depending on the frequency and form. The connection point on the radiator connected to the transmission line is usually called a feeding point. The transmission line includes a wire transmission line, a coaxial line transmission line, a waveguide, or a microstrip line. The transmission line may include a bracket antenna body, a glass antenna body, etc. depending on the implementation form. The transmission line may be implemented by LCP (Liquid Crystal Polymer), FPC (Flexible Printed Circuit), or PCB (Printed Circuit Board) according to different carriers.

[0101] Ground / floor: can refer to at least a part of any grounding layer, grounding plate, or grounding metal layer in an electronic device (such as a mobile phone), or at least a part of any combination of any of the above grounding layers, grounding plates, or grounding components, etc., and "ground / floor" can be used for grounding components in electronic devices. In one embodiment, "ground / floor" can include any one or more of the following: the grounding layer of the circuit board of the electronic device, the grounding plate formed by the middle frame of the electronic device, the grounding metal layer formed by the metal film under the screen, the conductive grounding layer of the battery, and the conductive parts or metal parts electrically connected to the above grounding layer / grounding plate / metal layer. In one embodiment, the circuit board can be a printed circuit board (PCB), such as an 8-layer, 10-layer or 12-14-layer board with 8, 10, 12, 13 or 14 layers of conductive materials, or an element separated and electrically insulated by a dielectric layer or insulating layer such as glass fiber, polymer, etc. In one embodiment, the circuit board includes a dielectric substrate, a grounding layer and a wiring layer, and the wiring layer and the grounding layer are electrically connected through vias. In one embodiment, components such as display 120, touch screen, input button, transmitter, processor, memory, battery 140, charging circuit, system on chip (SoC) structure, etc. can be mounted on or connected to the circuit board; or electrically connected to the wiring layer and / or ground layer in the circuit board. For example, the RF source is set in the wiring layer.

[0102] Any of the above-mentioned grounding layers, grounding plates, or grounding metal layers are made of conductive materials. In one embodiment, the conductive material can be any of the following materials: copper, aluminum, stainless steel, brass and their alloys, copper foil on an insulating substrate, aluminum foil on an insulating substrate, gold foil on an insulating substrate, silver-plated copper, silver-plated copper foil on an insulating substrate, silver foil and tin-plated copper on an insulating substrate, cloth impregnated with graphite powder, graphite-coated substrates, copper-plated substrates, brass-plated substrates, and aluminum-plated substrates. It will be appreciated by those skilled in the art that the grounding layer / grounding plate / grounding metal layer can also be made of other conductive materials.

[0103] Grounding: refers to coupling with the above-mentioned ground / floor through a grounding structure and / or a grounding circuit. In one embodiment, grounding can be achieved through physical grounding, such as physical grounding (or physical ground) at a specific position on the frame through some structural members of the middle frame. In one embodiment, grounding can be achieved through device grounding, such as grounding through devices such as capacitors / inductors / resistors connected in series or in parallel (or device ground).

[0104] Resonant frequency: The resonant frequency is also called the resonance frequency. The resonant frequency can have a frequency range, that is, the frequency range in which resonance occurs. The resonant frequency can be a frequency range in which the return loss characteristic is less than -6dB. The strongest point of resonance can be called the resonance point, and the frequency corresponding to the resonance point is the center frequency point frequency. The return loss characteristic of the center frequency can be less than -20dB. It should be understood that, unless otherwise specified, the antenna / radiator mentioned in this application produces a "first / second... resonance", where the first resonance should be the fundamental mode resonance generated by the antenna / radiator, or the lowest frequency resonance generated by the antenna / radiator. It should be understood that the antenna / radiator can generate one or more antenna modes according to the specific design, and each antenna mode can correspond to a fundamental mode resonance.

[0105] Resonant frequency band: The range of the resonant frequency is the resonant frequency band. The return loss characteristic of any frequency point in the resonant frequency band can be less than -6dB or -5dB.

[0106] Communication frequency band / working frequency band: Regardless of the type of antenna, it always works within a certain frequency range (band width). For example, an antenna that supports the B40 frequency band has a working frequency band that includes frequencies in the range of 2300MHz to 2400MHz, or in other words, the working frequency band of the antenna includes the B40 frequency band. The frequency range that meets the index requirements can be regarded as the working frequency band of the antenna. The width of the working frequency band is called the working bandwidth. The working bandwidth of an omnidirectional antenna may reach 3-5% of the center frequency. The working bandwidth of a directional antenna may reach 5-10% of the center frequency. The bandwidth can be considered as a frequency range on both sides of the center frequency (for example, the resonant frequency of a dipole), where the antenna characteristics are within the acceptable value range of the center frequency.

[0107] The resonant frequency band and the operating frequency band may be the same, or may partially overlap. In one embodiment, one or more resonant frequency bands of the antenna may cover one or more operating frequency bands of the antenna.

[0108] Electrical length: Electrical length can be expressed as the ratio of the physical length (i.e. mechanical length or geometric length) multiplied by the transmission time of an electrical or electromagnetic signal in a medium to the time required for the signal to pass the same distance as the physical length of the medium in free space. The electrical length can satisfy the following formula:

[0109]

[0110] Where L is the physical length, a is the transmission time of the electrical or electromagnetic signal in the medium, and b is the transmission time in free space.

[0111] Alternatively, electrical length can also refer to the ratio of physical length (i.e. mechanical length or geometric length) to the wavelength of the transmitted electromagnetic wave. The electrical length can satisfy the following formula:

[0112]

[0113] Where L is the physical length and λ is the wavelength of the electromagnetic wave.

[0114] In some embodiments of the present application, the physical length of the radiator may be understood as being within ±20%, or within ±10%, or within ±5% of the electrical length of the radiator.

[0115] In the embodiments of the present application, the wavelength in a certain wavelength mode (such as a half-wavelength mode, etc.) of the antenna may refer to the wavelength of the signal radiated by the antenna. For example, the half-wavelength mode of the suspended metal antenna may generate resonance in the 1.575 GHz frequency band, wherein the wavelength in the half-wavelength mode refers to the wavelength of the signal radiated by the antenna in the 1.575 GHz frequency band.

[0116] Wavelength: or operating wavelength, which can be the wavelength corresponding to the center frequency of the resonant frequency or the center frequency of the operating frequency band supported by the antenna. For example, assuming that the center frequency of the B1 uplink frequency band (resonant frequency is 1920MHz to 1980MHz) is 1955MHz, then the operating wavelength can be the wavelength calculated using the frequency of 1955MHz. Not limited to the center frequency, "operating wavelength" can also refer to the wavelength corresponding to the non-center frequency of the resonant frequency or the operating frequency band.

[0117] It should be understood that the wavelength of the radiation signal in the air can be calculated as follows: (air wavelength, or vacuum wavelength) = speed of light / frequency, where frequency is the frequency of the radiation signal (MHz), and the speed of light can be taken as 3×108m / s. The wavelength of the radiation signal in the medium can be calculated as follows: medium wavelength = (speed of light / √ε) / frequency, where ε is the relative dielectric constant of the medium. The wavelength in the embodiments of the present application generally refers to the medium wavelength, which can be the medium wavelength corresponding to the center frequency of the resonant frequency, or the medium wavelength corresponding to the center frequency of the working frequency band supported by the antenna. For example, assuming that the center frequency of the B1 uplink frequency band (resonant frequency is 1920MHz to 1980MHz) is 1955MHz, the wavelength can be the medium wavelength calculated using the frequency of 1955MHz. Not limited to the center frequency, "medium wavelength" may also refer to the medium wavelength corresponding to the non-center frequency of the resonant frequency or the working frequency band. For ease of understanding, the medium wavelength mentioned in the embodiments of the present application can be simply calculated by the relative dielectric constant of the medium filled on one or more sides of the radiator.

[0118] End / point: The "end / point" in the first end / second end / feeding end / grounding end / feeding point / grounding point / connection point of the antenna radiator cannot be narrowly understood as an end point or end portion that is physically disconnected from other radiators, but can also be considered as a point or a section on a continuous radiator. In one embodiment, the "end / point" may include a connection / coupling area on the antenna radiator that is coupled to other conductive structures. For example, the feed end / feeding point may be a coupling area on the antenna radiator that is coupled to the feed structure (for example, an area that faces a part of the feed structure circuit). For another example, the ground end / grounding point may be a connection / coupling area on the antenna radiator that is coupled to the ground structure.

[0119] Open end, closed end: In some embodiments, the open end and the closed end are, for example, relative to whether they are grounded. The closed end is grounded, and the open end is not grounded. In some embodiments, the open end / closed end is, for example, relative to other conductors. The closed end is electrically connected to other conductors, and the open end is not electrically connected to other conductors. In one embodiment, the open end can also be referred to as a suspended end, a free end, an open end, or an open-circuit end. In one embodiment, the closed end can also be referred to as a grounded end or a short-circuit end. It should be understood that in some embodiments, other conductors can be coupled and connected through the open end to transfer coupling energy (which can be understood as transferring current).

[0120] In some embodiments, the "closed end" can also be understood from the perspective of current distribution. The closed end or the grounded end, etc., can be understood as a point with larger current on the radiator, or as a point with smaller electric field on the radiator. In one embodiment, the current distribution characteristics of larger current / small electric field can be maintained by coupling electronic devices (for example, capacitors, inductors, etc.) through the closed end. In one embodiment, the current distribution characteristics of larger current / small electric field can be maintained by opening a gap at or near the closed end (for example, a gap filled with insulating material).

[0121] In some embodiments, the "open end" can also be understood from the perspective of current distribution. The open end or suspended end, etc., can be understood as a point with smaller current on the radiator, or as a point with larger electric field on the radiator. In one embodiment, coupling electronic devices (for example, capacitors, inductors, etc.) through the open end can maintain the current distribution characteristics of the smaller current point / larger electric field point.

[0122] It should be understood that coupling electronic devices (for example, capacitors, inductors, etc.) at a radiator end at a gap (from the perspective of the structure of the radiator, it is similar to a radiator at an opening of an open end or a suspended end) can make the radiator end a point with larger current / smaller electric field. In this case, it should be understood that the radiator end at the gap is actually a closed end or a grounded end, etc.

[0123] The limitations on position and distance such as the middle or middle position mentioned in the embodiments of the present application all represent a certain range rather than an absolutely strict definition in a mathematical sense. For example, the middle (position) of the conductor may refer to a conductor portion including the midpoint on the conductor, or may be a conductor portion of one-eighth of the wavelength including the midpoint of the conductor, wherein the wavelength may be the wavelength corresponding to the working frequency band of the antenna, may be the wavelength corresponding to the center frequency of the working frequency band, or may be the wavelength corresponding to the resonance point. For another example, the middle (position) of the conductor may refer to a conductor portion on the conductor that is less than a predetermined threshold value (e.g., 1 mm, 2 mm, or 2.5 mm) from the midpoint. The middle position of a slot or the middle position of one side of a slot refers to the middle position of one side of the slot.

[0124] The limitations such as parallel, perpendicular, identical, equal (for example, same length, same width, etc.) mentioned in the embodiments of the present application are all for the current technological level, rather than an absolutely strict definition in a mathematical sense. There may be a deviation of a predetermined threshold between two antenna units of the same length. There may be a deviation of a predetermined angle (for example, ±5°, ±10°) between two antenna units that are parallel or perpendicular to each other. In one embodiment, the predetermined threshold may be less than or equal to a threshold of 1 mm, for example, the predetermined threshold may be 0.5 mm, or may be 0.1 mm. In one embodiment, the predetermined angle may be an angle within the range of ±10°, for example, the predetermined angle deviation is ±5°. In one embodiment, dimensions within a 10% difference may also be considered equal.

[0125] System efficiency: refers to the ratio of the power radiated by the antenna into space (i.e. the power of the electromagnetic wave part that is effectively converted) to the input power of the antenna. System efficiency is the actual efficiency after considering the matching of the antenna port, that is, the system efficiency of the antenna is the actual efficiency (i.e. efficiency) of the antenna.

[0126] Radiation efficiency: refers to the ratio of the power radiated by the antenna into space (i.e. the power of the electromagnetic wave part that is effectively converted) to the active power input to the antenna. Among them, the active power input to the antenna = the input power of the antenna - the loss power; the loss power mainly includes the return loss power and the ohmic loss power of the metal and / or the dielectric loss power. Metal loss and dielectric loss are both factors that affect radiation efficiency.

[0127] Those skilled in the art can understand that efficiency is generally expressed as a percentage, and there is a corresponding conversion relationship between efficiency and dB. The closer the efficiency is to 0 dB, the better the efficiency of the antenna.

[0128] Unless otherwise specified, the numerical range / between mentioned in the embodiments of the present application includes the endpoint values ​​of the range. For example, the range of 2 to 10 includes the two endpoint values ​​of 2 and 10.

[0129] It is to be understood that the specific implementations described herein are only used to explain the relevant invention, rather than to limit the invention. It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings.

[0130] Figure 1 It is a schematic diagram of the structure of the electronic device 1000 provided in some implementations of the present application. Figure 2 yes Figure 1 The illustrated electronic device 1000 is a schematic diagram of a partially exploded structure in some implementations.

[0131] like Figure 1 and Figure 2As shown, the electronic device 1000 provided in the present application can be a mobile phone, a watch, a tablet personal computer, a laptop computer, a personal digital assistant (PDA), a smart home, a personal computer, a notebook computer, a vehicle-mounted device, a wearable device, augmented reality (AR) glasses, AR helmets, virtual reality (VR) glasses, VR helmets, etc. The electronic device 1000 can also be a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, an electronic device 1000 in a 5G network or an electronic device 1000 in a public land mobile network (PLMN) to be evolved in the future, etc., or other forms of devices that can receive and radiate electromagnetic wave signals. Figure 1 The electronic device 1000 of the illustrated embodiment is described by taking a mobile phone as an example. For ease of description, the thickness direction of the electronic device 1000 is defined as the Z axis, the length direction of the electronic device 1000 is defined as the Y axis, and the width direction of the electronic device 1000 is defined as the X axis. It is understandable that the coordinate system of the electronic device 1000 can also be specifically set according to actual needs, and this application does not limit this.

[0132] Exemplarily, the electronic device 1000 may include a screen 200 and a housing 300. It is understood that Figure 1 and Figure 2 Only some components of the electronic device 1000 are schematically shown, and the actual shapes, sizes and structures of these components are not limited to the following. Figure 1 and Figure 2 In other embodiments, when the electronic device 1000 is a device of other forms, the electronic device 1000 may not include the screen 200. The screen 200 may be installed in the housing 300. Figure 1 It illustrates a structure in which the screen 200 and the housing 300 form a roughly rectangular parallelepiped. The screen 200 can be used to display images, text, and the like. It should be understood that in the embodiments of the present application, it can be considered that when a user holds (usually vertically and facing the screen 200) the electronic device 1000, the electronic device 1000 is located at a position having a top, a bottom, a left side, and a right side. Among them, the top of the electronic device 1000 can face the sky. In this embodiment, the arrangement direction of the top and the bottom can be parallel to the Y-axis direction. The arrangement direction of the left side and the right side can be parallel to the X-axis direction.

[0133] Exemplarily, the housing 300 can be used to support the screen 200 and related devices of the electronic device 1000. The housing 300 may include a middle frame 310 (housing) and a rear cover 320 (rear cover). The rear cover 320 and the screen 200 may be installed on opposite sides of the middle frame 310. The arrangement direction of the rear cover 320 and the screen 200 may be parallel to the Z-axis direction. The rear cover 320 may be fixedly connected to the middle frame 310 by bonding, welding, etc. At this time, the screen 200, the middle frame 310, and the rear cover 320 may jointly enclose the internal space of the electronic device 1000. The internal space of the electronic device 1000 may be used to place the internal devices of the electronic device 1000, such as batteries, speakers, microphones, or receivers. Among them, the rear cover 320 may be a rear cover 320 made of a metal material, or a rear cover 320 made of a non-conductive material, such as a non-metallic rear cover such as a glass rear cover or a plastic rear cover, or a rear cover 320 made of both a conductive material and a non-conductive material.

[0134] Exemplarily, the middle frame 310 may include a frame 311 and a middle plate 312. The frame 311 may be arranged around the middle plate 312 and connected to the middle plate 312. The frame 311 may be formed of a conductive material such as metal. In this case, the frame 311 is a metal frame. In some embodiments, the middle frame 310 may also include only the frame 311. The back cover 320 may be an integrally formed structure with the frame 311, that is, the back cover 320 and the frame 311 are a whole.

[0135] Exemplarily, the electronic device 1000 may further include a circuit board (not shown). The circuit board may be a printed circuit board (PCB). The circuit board may be located between the middle frame 310 and the back cover 320. The circuit board may carry electronic components, such as radio frequency chips, etc. Among them, the circuit board may adopt a flame retardant material (FR-4) dielectric board, a Rogers dielectric board, or a mixed dielectric board of Rogers and FR-4. It should be noted that FR-4 is a code for a grade of flame retardant material, and Rogers dielectric board is a high-frequency board. In some embodiments, the circuit board may also be located between the screen 200 and the middle frame 310. This application does not limit the specific position of the circuit board.

[0136] In some embodiments, a metal layer may be further provided on the circuit board. The metal layer may be used for grounding electronic components carried on the circuit board, and may also be used for grounding other components in the electronic device 1000 (e.g., a bracket antenna, a frame antenna, etc.). In this case, the metal layer may be referred to as a floor, or a grounding plate, or a grounding layer. Exemplarily, the edge of the circuit board may be regarded as the edge of its floor.

[0137] In some embodiments, the conductive parts in the middle frame 310 and / or the back cover 320 may also serve as the reference ground of the electronic device 1000. Devices such as circuit boards in the electronic device 1000 may be grounded by being electrically connected to the middle frame 310 and / or the back cover 320. In other embodiments, the electronic device 1000 may also have other ground planes, which will not be described in detail herein.

[0138] In the present application, the electronic device 1000 may further include an antenna device (not shown). The antenna device may be a conductive portion of the frame 311 of the electronic device 1000 as a main radiator and / or a parasitic branch. The antenna device may be used to receive or transmit signals in a communication frequency band for satellite messaging and / or satellite phone calls.

[0139] Figure 3 yes Figure 1 A partial structural diagram of an electronic device 1000 is shown.

[0140] like Figure 3 As shown, the frame 311 of the electronic device 1000 can be a metal frame. The frame 311 can include a first short side 3111 and a second short side 3112 arranged opposite to each other, and a first long side 3113 and a second long side 3114 arranged opposite to each other. The first short side 3111 and the second short side 3112 can be connected between the first long side 3113 and the second long side 3114. An angle (e.g., a 90° angle) can be formed between the first long side 3113 and the first short side 3111. The length of the first long side 3113 can be greater than the length of the first short side 3111. It should be understood that the length of the first long side 3113 refers to the size of the first long side 3113 in its extension direction. The length of the first short side 3111 refers to the size of the first short side 3111 in its extension direction. In some embodiments, the first long side 3113, the second long side 3114, the first short side 3111 and the second short side 3112 can all be in the shape of long strips. The frame 311 can also include a plurality of corners (not shown). Any two adjacent ones of the first long side 3113, the second long side 3114, the first short side 3111 and the second short side 3112 may be transitionally connected through a corner. In some other embodiments, any corner of the frame 311 may also be considered as a part of the long side or short side adjacent to the corner.

[0141] In this embodiment, when the user holds the electronic device 1000 (see Figure 1 ), the first short side 3111 may be located at the top of the electronic device 1000. The second short side 3112 may be located at the bottom of the electronic device 1000. The first long side 3113 may be located at the left side of the electronic device 1000. The second long side 3114 may be located at the right side of the electronic device 1000.

[0142] It should be noted that Figure 3 The frame 311 shown is described by taking a non-foldable electronic device 1000 as an example. When the electronic device 1000 is a foldable electronic device 1000 (for example, a multi-fold device such as a two-fold or a three-fold device), the first long side 3113, the second long side 3114, the first short side 3111, and the second short side 3112 can be correspondingly understood as the long side and the short side on the part of the frame corresponding to one of the multiple folds.

[0143] Figure 4 yes Figure 3 A partially enlarged schematic diagram of the structure shown. Figure 5a yes Figure 4 The structure diagram of the first radiator 410, a part of the first short side 3111 and a part of the floor 500 is shown. Figure 5b yes Figure 5a The structure shown is a schematic diagram of a cross-sectional structure in an embodiment cut along AA. Figure 5a and Figure 5b And the floor 500 in the subsequent figures can be composed of one or more of a circuit board, a middle plate of a middle frame, or a connecting rib part between the middle frame and the frame.

[0144] like Figures 4 to 5b As shown, the antenna device 400 may include at least one radiator. In one implementation, the outer surface of the frame 311 may be a conductive material, such as a metal material, so as to form the appearance of a metal frame. In these implementations, the conductive portion of the frame 311 (e.g., including the outer surface of the frame 311) can be used as a radiator of the antenna device 400.

[0145] In one implementation, the outer surface of the frame 311 may be a non-conductive material, such as plastic, to form the appearance of a non-metal frame, and the inner surface of the frame 311 may include a conductive material, such as a metal material. In these implementations, the conductive portion of the frame 311 (e.g., including the inner surface of the frame 311) may be used as a radiator of the antenna device 400. It should be understood that the radiator disposed on the inner surface of the frame 311 (or the conductive material on the inner surface) is disposed in contact with the non-conductive material of the frame 311 to facilitate antenna radiation, and both the conductive material and the non-conductive material should be considered as part of the frame 311.

[0146] Exemplarily, the first short side 3111 may be provided with a first slit 311a and a second slit 311b. The first slit 311a and the second slit 311b may divide a metal section on the first short side 3111 to form the first radiator 410 of the antenna device 400. The first slit 311a and the second slit 311b may be filled with insulating materials, for example, the insulating materials may be materials such as polymers, glass, ceramics, or a combination of these materials. In other embodiments, the material of the first short side 3111 may also be a non-conductive material. At this time, the first short side 3111 may not be provided with the first slit 311a and the second slit 311b. The first radiator 410 may be a conductive body mounted on the first short side 3111, such as an antenna radiator such as an FPC antenna or an LDS antenna. In some other embodiments, the first radiator 410 may also be provided on the first long side 3113. The present application does not strictly limit the specific position and form of the first radiator 410.

[0147] Exemplarily, the first radiator 410 may include a first end 411 at the first slot 311a, and a second end 412 at the second slot 311b. The first end 411 and the second end 412 may both be open ends. The first radiator 410 may further include a first grounding point 413. In other embodiments, the first end 411 may be an open end, and the second end 412 may be a grounding end.

[0148] Exemplarily, the antenna device 400 may include a first grounding member (not shown). The first radiator 410 may be electrically connected to the floor 500 at the first grounding point 413 through the first grounding member. For example, the first radiator 410 may be grounded through the first grounding member at its middle position. That is, the first grounding point 413 may be located at the middle position of the first radiator 410. In other embodiments, the first grounding point 413 may also be located at any position between the first end 411 and the second end 412, for example, the first grounding point 413 may be located at the midpoint of the first radiator 410 ± (1 / 4) * L, where L is the physical length of the first radiator 410.

[0149] Exemplarily, the first radiator 410 may include a first feeding point 414. The antenna device 400 may further include a first feed source 420. The first feed source 420 may be electrically connected to the first feeding point 414. The first feed source 420 may input an electrical signal to the first feeding point 414 to excite the first radiator 410 to resonate. The first radiator 410 may have a first position 415. The current of the first radiator 410 at the first position 415 is relatively strong, that is, the large current point of the first radiator 410 is located at the first position 415.

[0150] Exemplarily, the first feeding point 414 may be located at the first end 411 or the second end 412 of the first radiator 410, that is, the first feed source 420 may feed the end of the first radiator 410. At this time, the first radiator 410 may generate an antenna pattern of half a wavelength. The current is stronger at the middle position of the first radiator 410 and weaker at the two ends of the first radiator 410 (that is, the first end 411 and the second end 412 in this embodiment). In other words, the large current point of the first radiator 410 may be located at the middle position of the first radiator 410. Among them, the middle position of the first radiator 410 may include the geometric center of the first radiator 410, that is, the first position 415 of the first radiator 410 may include the geometric center of the first radiator 410. In some embodiments, the middle position of the first radiator 410 may also be the geometric center ±(1 / 4)*L of the first radiator 410. Wherein, L is the physical length of the first radiator 410 , that is, the first position 415 of the first radiator 410 may be at ±(1 / 4)*L of the geometric center of the first radiator 410 .

[0151] Exemplarily, the antenna device 400 may further include a first tuning circuit 431 and / or a second tuning circuit 432. Both the first tuning circuit 431 and the second tuning circuit 432 may be electrically connected to the first radiator 410. For example, the first tuning circuit 431 may be electrically connected between the first ground point 413 and the first end 411. The second tuning circuit 432 may be electrically connected between the first ground point 413 and the second end 412. In one embodiment, the first tuning circuit 431 and the second tuning circuit 432 may be used to adjust the frequency of the resonance point generated by the first radiator 410, so that the first radiator 410 can operate in a target operating frequency band. In one embodiment, the first tuning circuit 431 and the second tuning circuit 432 may be used to adjust the frequency of the resonance point generated by the first radiator 410, so that the first radiator 410 can operate in different operating frequency bands. Among them, the first tuning circuit 431 and the second tuning circuit 432 may be circuits including switches. The switch may be used to switch electronic components of different resistance values, capacitance values, or inductance values ​​electrically connected to the first connection point in different circuit states. Alternatively, the switch may be in an off state so that the electronic component is not electrically connected to the first radiator 410. Alternatively, the switch may electrically connect the floor 500 to the first radiator 410 directly, and no electronic component is disposed between the floor 500 and the first radiator 410. In other embodiments, the first tuning circuit 431 may not include a switch. The first tuning circuit 431 may also be a circuit formed by connecting a plurality of electronic components in parallel. The first tuning circuit 431 may present different equivalent capacitance values ​​or equivalent inductance values ​​at different frequencies.

[0152] In some embodiments, Figure 6aAs shown, the first long side 3113 may also be provided with a third slit 311c. The antenna device 400 may also include a second radiator 450 and a third radiator 460. The third slit 311c and the second slit 311b may divide a metal segment on the frame 311. A second grounding point 440 may be provided between the third slit 311c and the second slit 311b. Among them, the metal segment between the second grounding point 440 and the second slit 311b may constitute the second radiator 450. The metal segment between the second grounding point 440 and the third slit 311c may constitute the third radiator 460. At this time, the end of the second radiator 450 close to the second slit 311b is an open end, and the end close to the second grounding point 440 is a grounded end. The end of the third radiator 460 close to the third slit 311c is an open end, and the end close to the second grounding point 440 is a grounded end. In one embodiment, when the first feed source 420 feeds a signal to the first radiator 410, the first radiator 410 may also excite the second radiator 450 or the third radiator 460 to generate parasitic resonance. In one embodiment, when the first feed source 420 feeds a signal to the first radiator 410, the first radiator 410 may also excite the second radiator 450 and the third radiator 460 to generate parasitic resonance.

[0153] In some embodiments, the antenna device 400 may further include a third tuning circuit 433. The third tuning circuit 433 may be electrically connected to the third radiator 460. The third tuning circuit 433 may be used to adjust the frequency of the resonance point of the parasitic resonance generated by the third radiator 460, so that the third radiator 460 can operate in different operating frequency bands.

[0154] In some other embodiments, Figure 6bAs shown, the second long side 3114 may also be provided with a fourth slit 311d. The antenna device 400 may also include a fourth radiator 470 and a fifth radiator 480. The structures of the fourth radiator 470 and the fifth radiator 480 are similar to those of the second radiator 450 and the third radiator 460, and are not described in detail here. When the first feed source 420 feeds a signal to the first radiator 410, the first radiator 410 may also excite the fourth radiator 470 and / or the fifth radiator 480 to generate parasitic resonance. In one embodiment, the first radiator 410, the second radiator 450, the third radiator 460, the fourth radiator 470 and the fifth radiator 480 may be used together as radiators of a satellite antenna in the electronic device 1000. In this way, by setting the second radiator 450, the third radiator 460, the fourth radiator 470 and the fifth radiator 480 as parasitic radiators of the first radiator 410, the radiation performance of the first radiator 410 may be effectively improved. At the same time, by providing multiple parasitic radiators, the antenna radiation aperture of the first radiator 410 can be effectively expanded to further improve the radiation performance and the radiation gain of the first radiator 410, thereby realizing the satellite message / satellite call function. It should be understood that the antenna device 400 has various forms, and the present application does not strictly limit the specific form of the antenna device 400.

[0155] It is understandable that the space for setting antennas inside current electronic devices is relatively limited, which greatly increases the difficulty of improving the antenna gain inside electronic devices. In the present application, an antenna enhancement accessory (not shown) including a conductive part is provided to cooperate with an electronic device 1000 having an antenna device 400. Among them, the part of the antenna enhancement accessory provided with the conductive part can be arranged close to the frame 311 of the electronic device 1000, and is arranged with one of the radiators of the antenna device 400 (that is, the first radiator 410 in this embodiment). In this way, when the first radiator 410 on the frame 311 is working, the polarization characteristic of the radiation generated by the first radiator 410 is linear polarization, and the polarization direction of the first radiator 410 is parallel to the second direction (that is, horizontal polarization radiation is generated in this embodiment). At the same time, the first radiator 410 can also couple with the conductive part of the antenna enhancement accessory. Among them, the polarization characteristic of the radiation generated by the conductive part is linear polarization, and is perpendicular to the polarization of the first radiator 410 (that is, vertical polarization radiation is generated in this embodiment). In this way, the horizontally polarized radiation signal generated by the first radiator 410 can be superimposed on the vertically polarized radiation signal generated by the conductive part of the antenna enhancement accessory, thereby effectively improving the system efficiency and radiation efficiency of the first radiator 410 without occupying the limited antenna setting space inside the electronic device 1000, thereby improving the gain of the first radiator 410.

[0156] The following will introduce how the antenna enhancement accessory cooperates with the electronic device and the specific structure of the antenna enhancement accessory in conjunction with the relevant drawings.

[0157] Figure 7a yes Figure 1 The illustrated diagram is a schematic diagram of the assembly structure of an electronic device 1000 and an antenna enhancement accessory 100 provided in the present application in some embodiments.

[0158] like Figure 7a As shown, the antenna enhancement accessory 100 can be fixed to the electronic device 1000. In this case, the antenna enhancement accessory 100 can form a communication system 2000 together with the electronic device 1000. Exemplarily, the antenna enhancement accessory 100 can be sleeved on the outer surface of the electronic device 1000. The antenna enhancement accessory 100 can cover at least part of the appearance surface of the shell of the electronic device 1000. In this case, the antenna enhancement accessory 100 can be close to the outer peripheral side of the frame 311 of the electronic device 1000. The antenna enhancement accessory 100 can be in the form of a protective cover, and can also be called a mobile phone case.

[0159] In some embodiments, Figure 7b As shown, the antenna enhancement accessory 100 can also be in the form of a surface mount. For example, the antenna enhancement accessory 100 can also be fixed to the first short side 3111 of the electronic device 1000 by bonding, magnetic attraction, etc. In this way, the antenna enhancement accessory 100 is easy to disassemble, and the user can choose whether to set the antenna enhancement accessory 100 according to the needs of using the electronic device 1000, and the user experience is better. This application does not make specific restrictions on this. In some other embodiments, the first radiator 410 can also be located at the first long side 3113 of the electronic device 1000. At this time, the antenna enhancement accessory 100 can also be fixed to the first long side 3113.

[0160] Figure 8a yes Figure 7a The communication system 2000 shown is a partially enlarged structural schematic diagram at B. Figure 8b yes Figure 8a A schematic diagram of the structure shown in another perspective. Figure 8c yes Figure 7a The communication system 2000 is shown as a partially enlarged structural diagram at B. For ease of understanding, Figure 8a and Figure 8b 3 and 4 , only a portion of the first radiator 410 is provided on the first short side 3111 of the electronic device 1000 , and a portion of the structure of the electronic device 1000 around the first radiator 410 are shown. Figure 8b The non-conductive portion 20 of the antenna enhancement accessory 100 is hidden.

[0161] like Figures 8a to 8cAs shown, the antenna enhancement accessory 100 can be fixed to the outer side of the frame 311 of the electronic device 1000. The outer side of the frame 311 refers to the side of the frame 311 facing away from the internal space of the electronic device 1000. Exemplarily, the antenna enhancement accessory 100 may include a conductive part 10 and a non-conductive part 20. The material of the conductive part 10 may be a metal material. The material of the non-conductive part 20 may be a non-metallic material. The dielectric constant (DK) of the non-metallic material may be in the range of 2 to 80. For example, the material of the non-conductive part 20 may be a plastic doped with glass fiber, in which case the dielectric constant of the non-conductive part 20 may be in the range of 2 to 5. Alternatively, the material of the non-conductive part 20 may be glass. In this case, the dielectric constant of the non-conductive part 20 may be in the range of 4 to 10. Alternatively, the material of the non-conductive part 20 may also be a ceramic material. In this case, the dielectric constant of the non-conductive part 20 may be in the range of 5 to 80. It should be noted that the range of 2 to 80 includes the endpoint values ​​2 and 80. Unless otherwise specified, the range may include the endpoint value. Figure 8b The antenna enhancement accessory 100 shown in the following figures only illustrates a partial structure of the antenna enhancement accessory 100 in which the conductive part 10 is provided.

[0162] For example, when the antenna enhancement accessory 100 is in the form of a protective cover, the non-conductive portion 20 of the antenna enhancement accessory 100 may be substantially in the shape of a protective cover. The non-conductive portion 20 may be sleeved on the outer surface of the electronic device 1000 (please refer to Figure 7a ). When the antenna enhancement accessory 100 is in the form of a surface mount, the antenna enhancement accessory 100 can be roughly in the shape of a long strip. The non-conductive portion 20 of the antenna enhancement accessory 100 can also be roughly in the shape of a long strip. The antenna enhancement accessory 100 can also include a fixing member (not shown). The fixing member can fix the non-conductive portion 20. The antenna enhancement accessory 100 can be fixed to the frame 311 of the electronic device 1000 by the fixing member (please refer to the figure for details). Figure 7b The fixing member may be embedded in the non-conductive part 20 or attached to the surface of the non-conductive part 20.

[0163] Exemplarily, the conductive part 10 may be located outside the first radiator 410 and spaced apart from the first radiator 410. The outside of the first radiator 410 refers to the side of the first radiator 410 facing away from the internal space of the electronic device 1000. The conductive part 10 may include a first conductive sheet 11, a second conductive sheet 12, and a feeder 13. The first conductive sheet 11, the second conductive sheet 12, and the feeder 13 may all be sheet-like structures. That is, the thickness of the above-mentioned structural members themselves may be much smaller than their own length and width. Of course, in some embodiments, the thickness of the first conductive sheet 11 and / or the second conductive sheet 12 may also be thicker. This application does not specifically limit this.

[0164] Exemplarily, the thickness extension direction of the conductive part 10 may be parallel to the thickness direction of the electronic device 1000 (also the Z-axis direction in this embodiment). The length extension direction of the conductive part 10 may be parallel to the width direction of the electronic device 1000 (also the Y-axis direction in this embodiment). The width extension direction of the conductive part 10 may be parallel to the length direction of the electronic device 1000 (also the X-axis direction in this embodiment). Among them, the length extension direction of the conductive part 10 refers to the length extension direction of the rectangular parallelepiped wrapped by the outer contour of the conductive part 10. The definitions of the width extension direction and the thickness extension direction of the conductive part 10 are similar to the length extension direction, and are not repeated here. For ease of expression, the thickness extension direction of the conductive part 10 is defined as the first direction. The length extension direction of the conductive part 10 is the second direction. The width extension direction of the conductive part 10 is the third direction. At the same time, the first direction is described as the first direction Z, the second direction is described as the second direction X, and the third direction is described as the third direction Y in the following text.

[0165] Exemplarily, the first conductive sheet 11 and the second conductive sheet 12 may be arranged opposite to each other and spaced apart in the first direction Z. That is, the arrangement direction of the first conductive sheet 11 and the second conductive sheet 12 may be parallel to the first direction Z. A portion of the non-conductive portion 20 may be filled between the first conductive sheet 11 and the second conductive sheet 12. A portion of the non-conductive portion 20 may wrap the first conductive sheet 11, the second conductive sheet 12 and the feeder 13. That is, the conductive portion 10 may be embedded in the non-conductive portion 20. In some embodiments, a portion of the surface of the first conductive sheet 11 may also be exposed relative to the non-conductive portion 20. Alternatively, the first conductive sheet 11 may also be attached to the surface of the non-conductive portion 20. At this time, the non-conductive portion 20 may also be filled only between the first conductive sheet 11 and the second conductive sheet 12. In some other embodiments, the non-conductive portion 20 may not be filled between the first conductive sheet 11 and the second conductive sheet 12. At this time, air may be filled between the first conductive sheet 11 and the second conductive sheet 12.

[0166] Fig. 9 yes Figure 8c The structure diagram of the conductive part 10 of the antenna enhancement accessory 100 shown is shown in another perspective. Fig.10 yes Fig. 9 The conductive part 10 of the antenna enhancement accessory 100 is shown in another perspective.

[0167] like Figures 8c to 10 As shown, the length extension direction of the projection of the first conductive sheet 11 along the first direction Z may be the same as the length extension direction of the projection of the second conductive sheet 12 along the first direction Z, and both are parallel to the second direction X. That is, the length extension direction of the projection of the first conductive sheet 11 along the first direction Z may be perpendicular to the first direction Z. Among them, the length extension direction of the projection of the first conductive sheet 11 along the first direction Z may be the length extension direction of the rectangle enclosed by the outer contour of the projection of the first conductive sheet 11 along the first direction Z and wrapping the first conductive sheet 11 itself. Exemplarily, the length extension direction of the first conductive sheet 11 may be parallel to the length extension direction of the projection of the first conductive sheet 11 along the first direction Z. That is, the length extension direction of the first conductive sheet 11 may be parallel to the second direction X. In other embodiments, the length extension direction of the first conductive sheet 11 may also intersect with the second direction X.

[0168] Exemplarily, both the first conductive sheet 11 and the second conductive sheet 12 may be rectangular sheet structures. The shape of the first conductive sheet 11 may be the same as the shape of the second conductive sheet 12. The length of the first conductive sheet 11 may be equal to the length of the second conductive sheet 12. In some embodiments, the first conductive sheet 11 may also be in other shapes (e.g., L-shaped, S-shaped, etc.). In some other embodiments, the shape of the first conductive sheet 11 may be different from the shape of the second conductive sheet 12. The present application does not specifically limit the shapes of the first conductive sheet 11 and the second conductive sheet 12.

[0169] Exemplarily, the first conductive sheet 11 may include a first end 111 and a second end 112. The second conductive sheet 12 may include a first end 121 and a second end 122. The first end 111 of the first conductive sheet 11 may be arranged opposite to the first end 121 of the second conductive sheet 12. The second end 112 of the first conductive sheet 11 may be arranged opposite to the second end 122 of the second conductive sheet 12. It should be noted that, in one embodiment, the first end 111 of the first conductive sheet 11 may be a section or a portion of the first conductive sheet 11 away from the end point / end face, that is, the distance between all points on the first end 111 of the first conductive sheet 11 and the end point / end face may be less than the first threshold value, and the first end 111 of the first conductive sheet 11 cannot be narrowly understood as a point. For example, the first threshold value may be 10% of the physical length of the first conductive sheet 11. The ends of the other components referred to in this application may also be understood as the above-mentioned concepts accordingly. In one embodiment, the first end 111 may also not have any end face.

[0170] Exemplarily, the feeder 13 may be connected between the first conductive sheet 11 and the second conductive sheet 12. The length extension direction of the feeder 13 may be parallel to the first direction Z. The length extension direction of the feeder 13 refers to the length extension direction of a rectangular parallelepiped surrounded by the outer contour of the feeder 13 and surrounding the feeder 13 itself. In other embodiments, the length extension direction of the feeder 13 may also intersect with the first direction Z.

[0171] Exemplarily, the feeder 13 may include a first connection end 131 and a second connection end 132. The first connection end 131 may be connected between the first end 111 of the first conductive sheet 11 and the second end 112 of the first conductive sheet 11. The second connection end 132 may be connected between the first end 121 of the second conductive sheet 12 and the second end 122 of the second conductive sheet 12. The direction from the first connection end 131 to the second connection end 132 may be parallel to the length extension direction of the feeder 13. The connection point between the feeder 13 and the first conductive sheet 11 is the first connection point 133. The first connection point 133 may be located between the first end 111 and the second end 112 of the first conductive sheet 11. The connection point between the feeder 13 and the second conductive sheet 12 is the second connection point 134. The second connection point 134 may be located between the first end 121 and the second end 112 of the second conductive sheet 12. It should be noted that the first connection point 133 may be regarded as the center of the partial surface of the contact between the feeder 13 and the first conductive sheet 11. The second connection point 134 may be regarded as the center of a portion of the surface where the feeding element 13 and the second conductive sheet 12 are in contact with each other.

[0172] Exemplarily, the first conductive sheet 11 may include a first long arm 113 and a first short arm 114. A portion of the first conductive sheet 11 close to the first end 111 relative to the first connection point 133 constitutes the first long arm 113 of the first conductive sheet 11. A portion of the first conductive sheet 11 close to the second end 112 relative to the first connection point 133 constitutes the first short arm 114 of the first conductive sheet 11. In other words, the first connection point 133 may be located at the junction of the first long arm 113 and the first short arm 114. The length of the first long arm 113 of the first conductive sheet 11 may be greater than the length of the first short arm 114 of the first conductive sheet 11.

[0173] Exemplarily, the second conductive sheet 12 may include a second long arm 124 and a second short arm 123. A portion of the second conductive sheet 12 close to the first end 111 relative to the second connection point 134 constitutes the second short arm 123 of the second conductive sheet 12. A portion of the second conductive sheet 12 close to the second end 112 relative to the second connection point 134 constitutes the second long arm 124 of the second conductive sheet 12. In other words, the second connection point 134 may be located at the junction of the second long arm 124 and the second short arm 123. The length of the second long arm 124 of the second conductive sheet 12 may be greater than the length of the second short arm 123 of the second conductive sheet 12.

[0174] Exemplarily, the first long arm 113 may be disposed opposite to the second short arm 123. The first short arm 114 may be disposed opposite to the second long arm 124. The length of the first long arm 113 may be the same as the length of the second long arm 124. It should be understood that the same length mentioned above and below may be completely the same or approximately the same, for example, the error is within 0.1 mm.

[0175] Exemplarily, the portion where the projection of the second conductive sheet 12 along the first direction Z covers the first conductive sheet 11 is the first overlapping portion 115. The portion where the projection of the first conductive sheet 11 along the first direction Z covers the second conductive sheet 12 is the second overlapping portion 125. For ease of understanding, Fig. 9 The first overlapping portion 115 and the second overlapping portion 125 are schematically divided by dotted lines. The feeder 13 can connect the first overlapping portion 115 and the second overlapping portion 125. That is, the first connection point 133 can be located at the first overlapping portion 115. The second connection point 134 can be located at the second overlapping portion 125. The space between the first overlapping portion 115 of the first conductive sheet 11 and the second overlapping portion 125 of the second conductive sheet 12 is the first space 100a. Among them, the ratio of the area of ​​the first overlapping portion 115 to the area of ​​the first conductive sheet 11 can be in the range of 0.1 to 0.9. The ratio of the area of ​​the second overlapping portion 125 to the area of ​​the second conductive sheet 12 can be in the range of 0.1 to 0.9.

[0176] Fig.11 yes Figure 8b A schematic diagram of a portion of the structure shown at another viewing angle. Fig.12a yes Figure 8b The structure shown is a schematic diagram of a partial cross-section structure in an embodiment cut along CC. Figure 12b yes Figure 8b The structure shown is a partial cross-sectional schematic diagram of an embodiment cut along CC. For ease of understanding, Figure 12b The non-conductive portion 20 of the antenna enhancement accessory 100 is hidden.

[0177] like Figure 11 to Figure 12b As shown, the portion of the antenna enhancement accessory 100 provided with the conductive portion 10 can be arranged close to the first short side 3111 of the electronic device 1000 (please refer to Figure 8b As shown). Among them, the non-conductive part 20 can contact the first radiator 410 on the first short side 3111. The feeder 13 of the conductive part 10 can be spaced apart from the first radiator 410. That is, the feeder 13 has no physical contact with the first radiator 410. The first space 100a of the conductive part 10 can be located on the side of the feeder 13 facing away from the first radiator 410. That is, the first radiator 410 can be arranged in the third direction Y with the first space 100a. In some embodiments, the first radiator 410 can also be mounted on the inner wall of the first short side 3111 in a surface mount form. At this time, the feeder 13 can also be exposed relative to the non-conductive part 20 and directly contact the first short side 3111. In some other embodiments, the first radiator 410 can also be arranged on the first long side 3113 of the electronic device 1000 (please refer to Figure 3 At this time, the portion of the antenna enhancement accessory 100 where the conductive portion 10 is provided can be disposed close to the first long side 3113 .

[0178] Exemplarily, the distance between the projection of the feeder 13 in the third direction Y and the first position 415 of the first radiator 410 may be less than or equal to 0.2 times the dielectric wavelength of the first radiator 410 in the first frequency band. The dielectric wavelength of the first radiator 410 in the first frequency band may be represented by λg, and in order to simplify the description, it is referred to as the dielectric wavelength of the first radiator 410 hereinafter. At this time, the projection of the feeder 13 of the conductive part 10 in the third direction Y may be regarded as overlapping with the first position 415 of the first radiator 410, that is, overlapping with the current maximum point of the first radiator 410. It should be noted that the distance between the projection of the feeder 13 in the third direction Y and the first position 415 in the second direction X may be the distance between the geometric center of the projection of the feeder 13 in the third direction Y and the first position 415 in the second direction X.

[0179] For example, Fig.11The viewing angle shown is a reference viewing angle, and the first feeding point 414 can be arranged close to the left end of the first radiator 410 (i.e., the first end 411 in this embodiment), and the first feeding point 414 can be located on the left side of the feeding element 13. The first long arm 113 can be located on the upper left side of the feeding element 13, and the second long arm 124 can be located on the upper right side of the feeding element 13.

[0180] How the first radiator 410 and the conductive part 10 of the antenna enhancement accessory 100 form circularly polarized waves will be described in detail below with reference to the relevant drawings.

[0181] Fig.13a yes Fig.11 The structure shown is a schematic diagram of the current direction and the electric field direction when the first radiator 410 operates in the first frequency band. Fig.13b yes Fig.11 The structure shown is a schematic diagram of the current direction and the electric field direction when the first radiator 410 operates in the first frequency band. Fig.13c yes Fig.11 The structure shown is a simulation schematic diagram of the electric field direction when the first radiator 410 works in the first frequency band. It should be understood that Fig.13a and Fig.13b Only a schematic diagram of the current direction and the electric field direction of the first radiator 410 and the conductive part 10 at a certain moment is shown when the first radiator 410 works in the first frequency band.

[0182] like Figures 13a to 13c As shown, the communication system may have a first frequency band and a second frequency band. The first radiator 410 may be used to communicate in the first frequency band and the second frequency band. When the communication system 2000 operates in the first frequency band, the first radiator 410 may couple the feeder 13 of the conductive part 10 at the first position 415. The conductive part 10 may be used to support the communication of the first radiator 410 in the first frequency band. At this time, the current density on the first short arm 114 and the second short arm 123 is relatively large, and the current density on the first long arm 113 and the second long arm 124 is relatively small. Among them, Fig.13a In the subsequent figures, the direction of current is indicated by a solid arrow, and the size of the solid arrow indicates the current density.

[0183] For example, at a certain moment, if Fig.13aAs shown, the current on the feeding element 13 can flow from the first connection point 133 to the second connection point 134. The direction of the current on the first conductive sheet 11 is opposite to the direction of the current on the second conductive sheet 12. A first electric field can be formed in the first space 100a between the first conductive sheet 11 and the second conductive sheet 12. The direction of the electric field lines of the first electric field can be parallel to the first direction Z. Among them, taking the current on the portion of the first conductive sheet 11 facing the first radiator 410 and the current on the portion of the second conductive sheet 12 close to the first radiator 410 as examples, the current direction of the portion of the first long arm 113 close to the first radiator 410 can be the same as the current direction of the portion of the second long arm 124 close to the first radiator 410, and the current directions are both roughly from left to right. The current on the portion of the first short arm 114 close to the first radiator 410 is the same as the current direction of the portion of the second short arm 123 close to the first radiator 410, and the current directions are roughly from right to left. At a certain moment, as Fig.13b As shown in FIG. 1 , the current on the feeder 13 can flow from the second connection point 134 to the first connection point 133. At this time, the current direction at each location on the conductive part 10 can be the same as Fig.13a The current directions shown are opposite and will not be described here.

[0184] In one embodiment, the direction of the electric field strength formed by the first radiator 410 and the conductive part 10 may present a left-hand rotation. In other words, the radiation of the first radiator 410 may be superimposed with the radiation of the conductive part 10 to form radiation with a polarization direction of left circular polarization.

[0185] Fig.14a yes Fig.11 The structure shown is a schematic diagram of the current direction and the electric field direction when the first radiator 410 operates in the second frequency band. Fig.14b yes Fig.11 The structure shown is a schematic diagram of the current direction and the electric field direction when the first radiator 410 operates in the second frequency band. Fig.14c yes Fig.11 The structure shown is a simulation schematic diagram of the electric field direction when the first radiator 410 operates in the second frequency band. The second frequency band is higher than the first frequency band. It should be understood that Fig.14a and Fig.14b Only a schematic diagram of the current direction and the electric field direction of the first radiator 410 and the conductive part 10 at a certain moment is shown when the first radiator 410 works in the second frequency band.

[0186] like Figures 14a to 14cAs shown, when the communication system 2000 operates in the second frequency band, the first radiator 410 can be coupled to the feeding element 13 of the conductive part 10 at the first position 415. The conductive part 10 can be used to support the communication of the first radiator 410 in the second frequency band. At this time, the current density on the first long arm 113 and the second long arm 124 is small, and the current density on the first short arm 114 and the second short arm 123 is large.

[0187] For example, at a certain moment, if Fig.14a As shown, the current on the feeding element 13 can flow from the first connection point 133 to the second connection point 134. The direction of the current on the first conductive sheet 11 is opposite to the direction of the current on the second conductive sheet 12. A second electric field can be formed in the first space 100a between the first conductive sheet 11 and the second conductive sheet 12. The direction of the electric field lines of the second electric field can be parallel to the first direction Z. Among them, taking the current on the portion of the first conductive sheet 11 facing the first radiator 410 and the current on the portion of the second conductive sheet 12 close to the first radiator 410 as examples, the current direction of the portion of the first long arm 113 close to the first radiator 410 can be the same as the current direction of the portion of the second long arm 124 close to the first radiator 410, and the current directions are roughly from left to right. The current on the portion of the first short arm 114 close to the first radiator 410 is the same as the current direction of the portion of the second short arm 123 close to the first radiator 410, and the current direction is roughly from right to left. At a certain moment, as Fig.14b As shown, the current on the feeder 13 can also flow from the second connection point 134 to the first connection point 133. At this time, the current direction at each location on the conductive part 10 can be the same as Fig.14a The current directions shown are opposite and will not be described here.

[0188] In one embodiment, the direction of the electric field strength formed by the first radiator 410 and the conductive part 10 may be right-handed. In other words, the radiation of the first radiator 410 may be superimposed with the radiation of the conductive part 10 to generate radiation with right circular polarization.

[0189] Exemplarily, the first frequency band and the second frequency band may correspond to the transmitting frequency band and the receiving frequency band in the satellite system, respectively. For example, in the Tiantong satellite system, the first frequency band may include 1980MHz to 2010MHz, and the second frequency band may include 2170MHz to 2200MHz. In the Beidou satellite system, the first frequency band may include 1610MHz to 1626.5MHz, and the second frequency band may include 2483.5MHz to 2500MHz. This embodiment is described by taking the Tiantong satellite system as an example. Among them, the center frequency point of the communication system 2000 when operating in the first frequency band is the first frequency. For example, the first frequency may be 1.9GHz. The midpoint frequency of the first radiator 410 when operating in the second frequency band is the second frequency. For example, the second frequency may be 2.1GHz. The ratio of the second frequency to the first frequency is the first value R1.

[0190] Exemplarily, the ratio of the length of the first long arm 113 to the length of the first short arm 114 of the first conductive sheet 11 may be in the range of 0.9×R1 and 1.1×R1.

[0191] In other implementations, the first frequency band and the second frequency band may also correspond to a transmitting frequency band and a receiving frequency band in other satellite communication systems, which is not specifically limited in the present application.

[0192] Fig.15a yes Figure 7a The communication system 2000 shown is a simulation schematic diagram comparing S11 of the electronic device 1000 that is not matched with the antenna enhancement accessory 100 . Fig.15b yes Figure 7a The illustrated diagram is a simulation diagram comparing the end-fire peak gain of the communication system 2000 and the electronic device 1000 that is not matched with the antenna enhancement accessory 100 . Fig.16 yes Figure 7a The communication system 2000 is shown as a simulation diagram comparing the system efficiency and radiation efficiency of the electronic device 1000 that is not matched with the antenna enhancement accessory 100. It should be noted that: Fig.15a Curve 1 in FIG. 1 is an S11 simulation curve of the communication system 2000 , and curve 2 is an S11 simulation curve of the electronic device 1000 that is not matched with the antenna enhancement accessory 100 . Fig.15b Curve 1 in the figure is a left circular polarization peak gain curve of the communication system 2000, curve 2 is a right circular polarization peak gain curve of the communication system 2000, and curve 3 is a peak gain curve of the electronic device not used with the antenna enhancement accessory. Fig.16Curve 1 is the system efficiency simulation curve of the communication system 2000, curve 2 is the system efficiency simulation curve of the electronic device 1000 that is not used with the antenna enhancement accessory 100, curve 3 is the radiation efficiency simulation curve of the communication system 2000, and curve 4 is the radiation efficiency simulation curve of the electronic device 1000 that is not used with the antenna enhancement accessory 100.

[0193] like Figures 15a to 16 As shown, when the electronic device is not used with the antenna enhancement accessory, when the first radiator radiates alone in its working frequency band, the first radiator can generate a resonance (please refer to Fig.15a At the same time, the peak gain of the first radiator when working in the first frequency band is roughly the same as the peak gain of the first radiator when working in the second frequency band, and both are relatively low (please refer to Fig.15b Curve 3 in Figure 3). The system efficiency when the first radiator radiates alone (please refer to Fig.16 Curve 2 in the figure) and radiation efficiency (see Fig.16 Curve 4) in the figure is also lower.

[0194] The electronic device 1000 and the antenna enhancement accessory 100 in this embodiment cooperate to form a communication system 2000. The first radiator 410 and the conductive portion 10 of the antenna enhancement accessory 100 can form a composite antenna together. When the composite antenna radiates in its operating frequency band, the composite antenna can generate two resonances (see Fig.15a Curve 1) in the figure forms a composite antenna pattern. The operating frequency band of the composite antenna can cover the first frequency band and the second frequency band. The frequencies of the two resonance points of the composite antenna can correspond to the center frequencies of the first frequency band and the second frequency band, respectively. At this time, both the first radiator 410 and the conductive part 10 can serve as the main radiator of the composite antenna, and the currents of both are relatively strong. The two resonances generated by the composite antenna are relatively close, so that a broadband resonance can be formed. That is, the effective bandwidth of the composite antenna is wider and the antenna performance is better. The two resonances are relatively close, which means that the intersection of the two resonances is below -6db, and the frequency difference between the resonance points of the two resonances is within 300MHz.

[0195] Secondly, the radiation generated by the first radiator 410 of the electronic device 1000 can be superimposed on the radiation generated by the antenna enhancement accessory 100 to form circularly polarized radiation. When the communication system 2000 operates in the first frequency band, the first radiator 410 can cooperate with the conductive part 10 of the antenna enhancement accessory 100 to generate left circularly polarized radiation, and its peak gain (please refer to Fig.15bThe peak gain of the first radiator 410 is increased by 5.0 dB compared to the peak gain of the first radiator 410 alone. When the communication system 2000 operates in the second frequency band, the first radiator 410 can cooperate with the conductive part 10 of the antenna enhancement accessory 100 to generate right circular polarized radiation, and its peak gain (see Fig.15b The peak gain of the first radiator 410 alone is increased by 3.6 dB compared to the curve 2 in FIG. 1 . At the same time, the system efficiency of the radiation generated by the electronic device 1000 and the antenna enhancement accessory 100 is (see FIG. 1 ) Fig.16 The curve 1 in FIG. 1 shows that the system efficiency is improved by 2.2 dB compared to the system efficiency when the first radiator 410 works alone. The radiation efficiency of the radiation generated by the electronic device 1000 and the antenna enhancement accessory 100 is shown in FIG. 1 (refer to FIG. 1 ). Fig.16 The curve 3) in FIG. 1 is also improved compared to when the first radiator 410 works alone.

[0196] It can be understood that the conductive part 10 of the antenna enhancement accessory 100 in this embodiment includes a first conductive sheet 11 and a second conductive sheet 12 that are opposite and spaced apart along a first direction Z, and the first conductive sheet 11 and the second conductive sheet 12 have an overlapping portion in the first direction Z. The feeder 13 is spaced apart from the first radiator 410. That is, there is no physical contact between the feeder 13 and the first radiator 410. The feeder 13 overlaps with a first position 415 on the first radiator 410 (that is, a point where the current of the first radiator 410 is large). In this way, the first radiator 410 can also couple with the feeder 13 while working, so that the conductive part 10 can generate vertically polarized radiation between the first conductive sheet 11 and the second conductive sheet 12, so as to enhance the system efficiency and radiation efficiency of the first radiator 410, thereby improving the gain of the first radiator 410. In other words, this embodiment provides an antenna enhancement accessory 100 having a conductive part 10 outside the electronic device 1000 to cooperate with the antenna radiator (in this embodiment, the first radiator 410) on the frame 311 of the electronic device 1000, and couples the conductive part 10 of the antenna enhancement accessory 100 through the corresponding antenna radiator to widen the antenna aperture of the corresponding antenna radiator, thereby effectively improving the system efficiency and radiation efficiency of the corresponding antenna radiator and improving the antenna performance without occupying the limited antenna setting space inside the electronic device 1000.

[0197] Secondly, the first radiator 410 can form a composite antenna together with the conductive part 10 of the antenna enhancement accessory 100. The composite antenna can generate two resonances within its operating frequency band to form a composite antenna mode. Among them, the operating frequency band of the composite antenna can cover the first frequency band and the second frequency band. The frequencies of the two resonance points of the composite antenna can correspond to the center frequencies of the first frequency band and the second frequency band, respectively. At this time, the first radiator 410 and the conductive part 10 can both serve as the main radiators of the composite antenna, and the currents of both are relatively strong. The two resonances generated by the composite antenna are relatively close, so that a broadband resonance can be formed. That is, the effective bandwidth of the composite antenna is wider and the antenna performance is better.

[0198] Secondly, the first radiator 410 can also be used to receive satellite signals and send signals to the satellite system to realize satellite system-related functions such as satellite messaging or satellite phone calls of the electronic device 1000. However, when the user uses the electronic device 1000 for satellite messaging and / or satellite calls, an interaction of radiation signals will occur between the electronic device 1000 and the satellite system. Among them, the polarization characteristic of the radiation generated by the satellite system is circular polarization. The first radiator 410 will receive electromagnetic waves from the satellite, and the polarization characteristic of the electromagnetic waves is circular polarization. The satellite system will receive electromagnetic waves from the electronic device 1000, and the polarization characteristic of the electromagnetic waves is linear polarization. This causes the first radiator 410 to generate large losses when receiving radiation signals from the satellite, and the satellite system to generate large losses when receiving radiation signals from the electronic device 1000, resulting in increased power consumption of the first radiator, and at the same time, it will reduce the signal transmission rate of the first radiator, affecting the user experience. In this embodiment, the first conductive sheet 11 can be divided into a first long arm 113 with a longer length and a first short arm 114 with a shorter length by the first connection point 133, and the second conductive sheet 12 can be divided into a second long arm 124 with a longer length and a second short arm 123 with a shorter length by the second connection point 134, and the first long arm 113 can be arranged opposite to the first short arm 114, and the first short arm 114 can be arranged opposite to the second long arm 124, that is, the first conductive sheet 11 and the second conductive sheet 12 can be arranged anti-symmetrically. When the first radiator 410 couples the excitation conductive part 10 to generate vertical polarized radiation between the first conductive sheet 11 and the second conductive sheet 12, the electric field components between the first conductive sheet 11 and the second conductive sheet 12 generate a phase difference. In this way, the horizontal polarized radiation generated by the first radiator 410 and the vertical polarized radiation generated by the conductive part 10 can form circular polarized radiation after superposition, thereby effectively reducing the signal loss when the first radiator 410 of the electronic device 1000 communicates with the satellite system, improving the signal transmission rate between the two, and helping to improve the user experience of satellite system-related functions such as satellite messaging and / or satellite phone of the electronic device 1000. Compared with the first radiator 410 working alone, when the first radiator 410 works in conjunction with the antenna enhancement accessory 100, its peak gain, system efficiency, and radiation efficiency are effectively improved.

[0199] In addition, the antenna enhancement accessory 100 of this embodiment may also include a non-conductive part 20, and at least part of the non-conductive part 20 may be filled between the first conductive sheet 11 and the second conductive sheet 12, which is equivalent to increasing the capacitance in the area where the electric field of the conductive part 10 is larger, thereby effectively shortening the size of the first space 100a in the third direction Y (also known as the second size D2 in this embodiment), thereby shortening the size of the conductive part 10 in the third direction Y, which is conducive to realizing the narrow setting of the antenna enhancement accessory 100.

[0200] In addition, the first connection point 133 of the feeder 13 of the conductive part 10 is located at the first overlapping portion 115 of the first conductive sheet 11, and the second connection point 134 of the feeder 13 is located at the second overlapping portion 125 of the second conductive sheet 12, that is, the feeder 13 can be connected between the first overlapping portion 115 and the second overlapping portion 125. In this way, the first radiator 410 can better couple with the conductive part 10, so that the conductive part 10 generates vertically polarized radiation.

[0201] Please refer again Figure 8c to Figure 10 , the conductive portion 10 may have a first end surface 14 and a second end surface 15 disposed opposite to each other in the second direction X. The first end surface 14 may be a surface of the first end 111 of the first conductive sheet 11 facing away from the second end 122 of the second conductive sheet 12. The second end surface 15 may be a surface of the second end 122 of the second conductive sheet 12 facing away from the first end 111 of the first conductive sheet 11.

[0202] Exemplarily, the length H of the conductive part 10 may be in the range of 0.4 to 0.6 times the dielectric wavelength. The dielectric wavelength may be represented by λg. The dielectric wavelength may be the dielectric wavelength of the first radiator 410 at the center frequency of the first frequency band, that is, the first dielectric wavelength. That is, the length H of the conductive part 10 may be in the range of 0.4λg to 0.6λg. In this embodiment, the length H of the conductive part 10 may be 0.5λg. It should be understood that the length H of the conductive part 10 may be the distance between the first end 111 of the first conductive sheet 11 and the second end 122 of the second conductive sheet 12 in the third direction Y, that is, the distance between the first end face 14 and the second end face 15 of the conductive part 10 in the third direction Y. In other embodiments, the dielectric wavelength may also be the dielectric wavelength of the first radiator 410 at the center frequency of the second frequency band, that is, the second dielectric wavelength.

[0203] Exemplarily, the thickness of the feeder 13 may be less than or equal to 0.05λg. For example, the thickness of the feeder 13 may be 0.1 mm, 0.2 mm, 0.22 mm, etc. The width of the feeder 13 in the second direction X may be greater than or equal to 0.1λg. The feeder 13 may include a first edge 135 and a second edge 136 disposed opposite to each other in the second direction X. The first edge 135 may be toward the first end 111 of the first conductive sheet 11. The second edge 136 may be toward the second end 112 of the first conductive sheet 11. That is, the first edge 135 may be disposed closer to the first end surface 14 than the second edge 136.

[0204] The spacing between the first edge 135 and the first end 111 of the first conductive sheet 11 in the second direction X may be greater than or equal to 0.1λg. The spacing between the second edge 136 and the second end 122 of the second conductive sheet 12 in the second direction X may be greater than or equal to 0.1λg. It should be noted that the spacing between the first edge 135 and the first end 111 of the first conductive sheet 11 in the second direction X refers to the distance between the first edge 135 and the end face / end point of the first end 111 of the first conductive sheet 11 that faces away from the first connection point 133 and is farthest from the first connection point 133. The spacing between the second edge 136 and the second end 122 of the second conductive sheet 12 in the second direction X may be applicable to the above definition. In this way, the feed 13 can ensure sufficient coupling with the first radiator 410 while the width of the feed 13 in the second direction X is narrow, thereby extending the current length of the resonant current from the first conductive sheet 11 to the feed 13 and then to the second conductive sheet 12. When the resonant frequency of the communication system 2000 is constant, the width of the feeding element 13 in the second direction X can be reduced to reduce the size of the first conductive sheet 11 and the second conductive sheet 12 in the third direction Y, which is conducive to achieving a narrow setting of the antenna enhancement accessory 100.

[0205] Exemplarily, the first conductive sheet 11 may be parallel to the second conductive sheet 12. That is, the distance between any point on the first conductive sheet 11 and the second conductive sheet 12 in the first direction Z is equal. At this time, the first overlapping portion 115 of the first conductive sheet 11 is parallel to the second overlapping portion 125 of the second conductive sheet 12. It should be understood that any point on the first conductive sheet 11 refers to any point on the surface of the first conductive sheet 11 facing the second conductive sheet 12. In this way, the first conductive sheet 11 is parallel to the second conductive sheet 12, which is conducive to improving the radiation performance of the conductive portion 10.

[0206] Exemplarily, the size of the first space 100a in the first direction Z is the first size D1. The size of the first space 100a in the third direction Y is the second size D2. The sum of the first size D1 and the second size D2 may be in the range of 0.29λg to 0.31λg. For example, the sum of the first size D1 and the second size D2 may be 0.3λg. Among them, the second size D2 may be greater than or equal to 0.08λg. In this way, the conductive part 10 of the antenna enhancement accessory 100 may have a smaller size while having better radiation performance, which is conducive to the miniaturization of the antenna enhancement accessory 100. In some embodiments, the composite antenna formed by the first radiator 410 and the conductive part 10 may resonate in the first frequency band and the second frequency band, respectively. Among them, the center frequency point of the second frequency band (that is, the second frequency) may be less than or equal to 1.5 times the center frequency point of the first frequency band (that is, the first frequency), that is, the ratio of the first frequency to the second frequency may not exceed 1:1.5. In this way, the two resonances are closer, so that a broadband resonance can be formed, so that the effective bandwidth of the composite antenna is wider and the antenna performance is better. In some other embodiments, the second frequency can also be less than or equal to 1.2 times the first frequency. It should be understood that those skilled in the art can adjust the first frequency and / or the second frequency by some conventional means, such as by adjusting the first dimension D1 and / or adjusting the second dimension D2.

[0207] For example, in the third direction Y, the distance D3 between any point on the surface of the feeder 13 facing the first radiator 410 and the first radiator 410 may be less than or equal to 0.0025λg. In some embodiments, the distance D3 between any point on the surface of the feeder 13 facing the first radiator 410 and the first radiator 410 may also be in the range of 0.0005λg to 0.0025λg. In this way, the feeder 13 can have good radiation performance while being spaced apart from the first radiator 410.

[0208] In some embodiments, the first overlapping portion 115 of the first conductive sheet 11 and the second overlapping portion 125 of the second conductive sheet 12 may not be parallel. In this case, the first space 100a has multiple dimensions in the first direction Z. The first dimension D1 may be an intermediate value of multiple dimensions of the first space 100a in the first direction Z. In some embodiments, the length extension direction of the feeder 13 may also intersect with the first direction Z. In this case, the first space 100a has multiple dimensions in the third direction Y. The second dimension D2 may be an intermediate value of multiple dimensions of the first space 100a in the third direction Y.

[0209] In some embodiments, the first conductive sheet 11 may be arranged at an angle with the second conductive sheet 12. Alternatively, a portion of the first conductive sheet 11 may be bent in a direction toward / away from the second conductive sheet 12. In this case, the distance between any point on the first conductive sheet 11 and the second conductive sheet 12 in the first direction Z may not be completely equal. The distance between any point on the first conductive sheet 11 and the second conductive sheet 12 in the first direction Z may be in the range of 0.6 to 1.4 times the first dimension D1.

[0210] In some embodiments, Fig.17 As shown, the positions of the first long arm 113 and the first short arm 114 of the first conductive sheet 11 can also be swapped, and the positions of the second long arm 124 and the second short arm 123 of the second conductive sheet 12 can also be swapped. Fig.17 The viewing angle shown is a reference viewing angle, the first feeding point 415 can be arranged close to the left end of the first radiator 410 (i.e., the first end 411 in this embodiment), and the first feeding point 414 can be located on the left side of the feeding element 13. The first long arm 113 is located on the upper right side of the feeding element 13, and the second long arm 124 is located on the lower left side of the feeding element 13.

[0211] When the first radiator 410 works in the first frequency band, the direction of the electric field strength formed by the first radiator 410 and the conductive part 10 can present a right-hand rotation, that is, the first radiator 410 and the conductive part 10 can form radiation with a right circular polarization direction. When the first radiator 410 works in the second frequency band, the direction of the electric field strength formed by the first radiator 410 and the conductive part 10 can present a left-hand rotation, that is, the first radiator 410 and the conductive part 10 can form radiation with a left circular polarization direction. In other words, by simultaneously adjusting the relative positions of the first long arm 113, the first short arm 114, the second long arm 124, the second short arm 123, the first feeding point 415 of the first radiator 410 and the feeding element 13, the polarization direction of the radiation generated by the first radiator 410 and the conductive part 10 when the first radiator 410 works in different frequency bands can be controlled, so that it can be applied to a variety of different satellite communication systems.

[0212] In some embodiments, Fig.18As shown, the length of the first short arm 114 of the first conductive sheet 11 can also be less than or equal to 20% of the length of the first long arm 113. The length of the second short arm 123 of the second conductive sheet 12 can also be less than or equal to 20% of the length of the second long arm 124. At this time, the communication system 2000 can operate in the third frequency band. The third frequency band can cover the first frequency band and at least part of the second frequency band. At this time, the conductive part 10 can be mainly used to support the communication of the first radiator 410 in the first frequency band. In one embodiment, the direction of the electric field strength formed by the first radiator 410 and the conductive part 10 can present a left-hand rotation. In other words, the first radiator 410 can cooperate with the conductive part 10 to form a broadband (i.e., the third frequency band in this embodiment) single circular polarization (left circular polarization in this embodiment) radiation. In this way, the first radiator 410 and the antenna enhancement accessory 100 can also be applied to satellite systems that receive and transmit single circular polarization waves or to scenes with a large demand for receiving satellite signals. Compared to the electronic device 1000 that performs satellite communication by radiating only through the first radiator 410, and the polarization characteristic of the radiation generated by the first radiator 410 is linear polarization, the first radiator 410 in this embodiment cooperates with the conductive part 10 to generate radiation with a polarization characteristic of circular polarization, thereby effectively improving the peak gain, system efficiency and radiation efficiency of the first radiator 410 when it is working, which is beneficial to improving the signal strength of the first radiator 410 when performing satellite communication and enhancing the user experience.

[0213] In some other embodiments, the communication system 2000 can also be operated in the fourth frequency band by adjusting the relative positions of the first long arm 113, the second long arm 124, the first short arm 114, the second short arm 123, the first feeding point 414 and the feeding element 13. For example, the length of the first long arm 113 can be less than or equal to 20% of the length of the first short arm 114, and the length of the second long arm 124 can be less than or equal to 20% of the length of the second short arm 123. Among them, the fourth frequency band can cover the second frequency band and at least part of the first frequency band. At this time, the conductive part 10 can be mainly used to support the communication of the first radiator 410 in the second frequency band. In one embodiment, the direction of the electric field strength formed by the first radiator 410 and the conductive part 10 can present a right-hand rotation, so that the first radiator 410 can also cooperate with the conductive part 10 to form broadband right circularly polarized radiation.

[0214] Fig.19 yes Figure 8b The structure shown is a schematic diagram of the structure in another embodiment. Fig. 20 yes Fig.19 The structure shown is a schematic diagram of a cross-sectional structure in an embodiment cut along DD.

[0215] like Fig.19 and Fig. 20 As shown, the structure of the antenna enhancement accessory 100 in this embodiment is similar to Figure 8b The structures of the antenna enhancement accessory 100 shown are substantially the same, and the same parts are not repeated. The differences between the two will be described below. In this embodiment, at least part of the projection of the first conductive sheet 11 along the first direction can cover the first radiator 410. The size of the first conductive sheet 11 in the third direction Y can be greater than the size of the second conductive sheet 12 in the third direction Y. The feeder 13 may include a first connecting portion 137, a second connecting portion 138, and a coupling portion 139. The coupling portion 139 can connect the first connecting portion 137 and the second connecting portion 138. The coupling portion 139 can be arranged directly opposite to the first radiator 410. The coupling portion 139 can be used to couple with the first radiator 410. The coupling portion 139 can be a portion of the feeder 13 that is directly opposite to the first radiator 410 in the third direction Y. The first connecting portion 137 can be connected to the first conductive sheet 11. The second connecting portion 138 can be connected to the second conductive sheet 12. In some embodiments, the first connecting portion 137 can also be the surface / point / end of the coupling portion 139 facing the first conductive sheet 11.

[0216] Exemplarily, the first connection portion 137 may be bent. The first connection portion 137 may connect the first connection point 133 and the end of the coupling portion 139 facing away from the second connection portion 138. The projection of the first connection portion 137 in the first direction Z may overlap with the first short side 3111. The coupling portion 139 may be located between the first conductive sheet 11 and the second conductive sheet 12. The projection of the coupling portion 139 in the third direction Y may overlap with the first short side 3111. The second connection portion 138 may connect the end of the coupling portion 139 facing away from the first connection portion 137 and the second connection point 134. At this time, the second dimension D2 of the first space 100a refers to the dimension of the portion of the first space 100a located between the first overlapping portion 115 and the second overlapping portion 125 in the third direction Y. Among them, the second connection portion 138 may be in the shape of a straight sheet, directly connected between the end of the coupling portion 139 away from the first conductive sheet 11 and the second conductive sheet 12. In some embodiments, the second connection portion 138 may be partially bent, for example, into an “L” shape or a “U” shape.

[0217] It can be understood that in this embodiment, the portion of the feeder 13 close to the first conductive sheet 11 is bent and protruded in the direction toward the first radiator 410 (that is, the first connecting portion 137 of the feeder 13 in this embodiment). In this way, by extending the total length of the feeder 13 between the first connecting point 133 and the second connecting point 134, it is equivalent to adding an inductor to the region of the conductive part 10 with a relatively large current (that is, the feeder 13), thereby effectively shortening the second dimension D2 of the first space 100a, thereby shortening the dimension of the conductive part 10 in the third direction Y, and facilitating the narrowing of the antenna enhancement accessory 100.

[0218] In other embodiments, Fig.21 As shown, the first conductive sheet 11 may include a main body portion 11 a and an extension portion 11 b connected to each other. Fig.21 The main part 11a and the extension part 11b are schematically divided by dotted lines. At this time, the first conductive sheet 11 can be roughly in the form of a "convex" sheet structure. Among them, the size of the extension part 11b in the second direction X can be equal to the size of the feeder 13 in the second direction X. The main part 11a can be spaced apart from the second conductive sheet 12 in the first direction Z. The extension part 11b can be spaced apart from the first radiator 410 in the first direction Z. At this time, the first connection point 133 can be located at the end of the extension part 11b facing away from the main part 11a. The first connection part 137 of the feeder 13 can be connected to the extension part 11b.

[0219] It should be noted that, in the absence of conflict, the features in the embodiments of the present application can be combined with each other, and any combination of features in different embodiments is also within the protection scope of the present application. That is to say, the multiple embodiments described above can also be arbitrarily combined according to actual needs.

[0220] It should be noted that all the above drawings are illustrative illustrations of the present application and do not represent the actual size of the product. Moreover, the size ratio relationship between the components in the drawings is not intended to limit the actual product of the present application.

[0221] The above are only some implementation methods of the present application, and the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by any person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An antenna enhancement accessory (100) for use with an electronic device (1000) having an antenna device (400), characterized in that: The antenna enhancement accessory (100) comprises a conductive part (10), wherein the conductive part (10) comprises a feeder (13), a first conductive sheet (11) and a second conductive sheet (12), wherein the feeder (13) comprises a first connection end (131) and a second connection end (132), wherein the first conductive sheet (11) is connected to the first connection end (131), and the second conductive sheet (12) is connected to the second connection end (132), wherein the first conductive sheet (11) and the second conductive sheet (12) are arranged opposite to each other and spaced apart in a first direction (Z), wherein the projections of the first conductive sheet (11) and the second conductive sheet (12) in the first direction (Z) at least partially overlap, and the length extension direction of the projection of the first conductive sheet (11) along the first direction (Z) and the length extension direction of the projection of the second conductive sheet (12) along the first direction (Z) are the same.

2. The antenna enhancement accessory (100) according to claim 1, characterized in that: The connection point between the feeding element (13) and the first conductive sheet (11) is a first connection point (133); in the length extension direction of the first conductive sheet (11), the first conductive sheet (11) is divided into a first long arm (113) and a first short arm (114) at the first connection point (133); the length of the first long arm (113) is greater than the length of the first short arm (114); The connection point between the feeding element (13) and the second conductive sheet (12) is a second connection point (134); in the length extension direction of the second conductive sheet (12), the second conductive sheet is divided into a second long arm (124) and a second short arm (123) at the second connection point (134); the length of the second long arm (124) is greater than the length of the second short arm (123); The first long arm (113) and the second short arm (123) are arranged opposite to each other, and the first short arm (114) and the second long arm (124) are arranged opposite to each other.

3. The antenna enhancement accessory (100) according to claim 1 or 2, characterized in that: The antenna enhancement accessory (100) is used to operate within the communication frequency band of satellite messaging and / or satellite telephony.

4. The antenna enhancement accessory (100) according to claim 2, characterized in that: The length of the first long arm (113) is equal to the length of the second long arm (124).

5. The antenna enhancement accessory (100) according to any one of claims 1 to 4, characterized in that: The length of the first conductive sheet (11) is equal to the length of the second conductive sheet (12).

6. The antenna enhancement accessory (100) according to any one of claims 1 to 5, characterized in that: The portion of the projection of the second conductive sheet (12) along the first direction (Z) that covers the first conductive sheet (11) is a first overlapping portion (115), and the feeding element (13) is connected to the first overlapping portion (115).

7. The antenna enhancement accessory (100) according to claim 6, characterized in that: The ratio of the area of ​​the first overlapping portion (115) to the area of ​​the first conductive sheet (11) is within a range of 0.1 to 0.

9.

8. The antenna enhancement accessory (100) according to any one of claims 1 to 7, characterized in that: The direction from the first connection end (131) of the power feeding element (13) to the second connection end (132) is parallel to the first direction (Z).

9. The antenna enhancement accessory (100) according to any one of claims 1 to 8, characterized in that: The length extension direction of the first conductive sheet (11) is parallel to the length extension direction of the projection of the first conductive sheet (11) along the first direction (Z).

10. The antenna enhancement accessory (100) according to any one of claims 1 to 9, characterized in that: The first conductive sheet (11) is parallel to the second conductive sheet (12).

11. The antenna enhancement accessory (100) according to any one of claims 1 to 10, characterized in that: The antenna enhancement accessory (100) further comprises a non-conductive part (20), and the conductive part (10) is embedded in the non-conductive part (20); or, at least a portion of the surface of the conductive part (10) is exposed relative to the non-conductive part (20).

12. The antenna enhancement accessory (100) according to claim 11, characterized in that: Part of the non-conductive portion (20) is filled between the first conductive sheet (11) and the second conductive sheet (12).

13. The antenna enhancement accessory (100) according to claim 11 or 12, characterized in that: The dielectric constant of the non-conductive portion (20) is in the range of 2 to 80.

14. The antenna enhancement accessory (100) according to any one of claims 11 to 13, characterized in that: The non-conductive part (20) is used to be sleeved on the outside of a frame (310) of the electronic device (1000); the frame (310) of the electronic device (1000) is provided with a first radiator (410); the conductive part (10) is located on the outside of the first radiator (410) and is spaced apart from the first radiator (410).

15. The antenna enhancement accessory (100) according to any one of claims 11 to 13, characterized in that: The antenna enhancement accessory (100) is in the shape of an elongated strip and is used to be fixed to the outside of a frame (310) of the electronic device (1000); the frame (310) is provided with a first radiator (410); the conductive portion (10) is located outside the first radiator (410) and is spaced apart from the first radiator (410).

16. The antenna enhancement accessory (100) according to any one of claims 1 to 15, characterized in that: The feeding element (13) comprises a first connecting portion (137), a coupling portion (138) and a second connecting portion (139); the coupling portion (138) connects the first connecting portion (137) and the second connecting portion (139); the coupling portion (138) is used to couple with a first radiator (410) of an antenna device (400) of an electronic device (1000); the first connecting portion (137) is connected to the first conductive sheet (11); the second connecting portion (139) is connected to the second conductive sheet (12); and at least one of the first connecting portion (137) and the second connecting portion (139) is bent.

17. A communication system (2000), characterized in that: An electronic device (1000) comprising an antenna device (400) and an antenna enhancement accessory (100) according to any one of claims 1 to 16, wherein the antenna enhancement accessory (100) is fixed to the outside of a frame (310) of the electronic device (1000), the antenna device (400) comprises a first radiator (410), the first radiator (410) is formed by a part of the frame (310), or the first radiator (410) is fixed to the inside of the frame (310), the feeder (13) is located on the outside of the first radiator (410) and is spaced apart from the first radiator (410), and the first radiator (410) is used for communicating in a first frequency band.

18. The communication system (2000) according to claim 17, characterized in that The conductive part (10) is spaced apart from the first radiator (410), a first direction (Z) of the antenna enhancement accessory (100) is parallel to a thickness direction of the electronic device (1000), and a second direction (X) of the antenna enhancement accessory (100) is parallel to a length extension direction of the first radiator (410); A feeding point (414) is provided on the first radiator (410), and the feeding point (414) is used to feed the first radiator (410). The first radiator (410) is used to couple the feeding element (13) when feeding. The antenna enhancement accessory is used to support communication in the first frequency band.

19. The communication system (2000) according to claim 17 or 18, characterized in that: The first frequency band corresponds to a communication frequency band of satellite messaging and / or satellite telephony.

20. The communication system (2000) according to any one of claims 17 to 19, characterized in that: The frame (310) includes a first short side (3111) and a first long side (3113) that are adjacent to each other, the first short side (3111) is located at the top of the electronic device (1000), and the first radiator (410) is formed on the first short side (3111), or the first radiator (410) is fixed to the inner side of the first short side (3111).

21. The communication system (2000) according to any one of claims 17 to 20, characterized in that: The first radiator (410) comprises a first end (411) and a second end (412), the first end (411) and the second end (412) are both open ends, the first radiator (410) has a first position (415), the first position (415) is located between the first end (411) and the second end (412), the first position (415) is a distance in the first radiator (410) from a geometric center of the first radiator (410) by 0.5 times the physical length of the first radiator (410); The distance between the projection of the feeding element (13) along the third direction (Y) of the antenna enhancement accessory (100) and the first position (415) is less than or equal to 0.2 times the first medium wavelength, and the first medium wavelength is the medium wavelength of the center frequency point of the first radiator (410) in the first frequency band.

22. The communication system (2000) according to any one of claims 17 to 20, characterized in that: The first radiator (410) comprises a first end (411) and a second end (412), the first end (411) is an open end, and the second end (412) is a ground end; The distance between the projection of the feeding element (13) along the third direction (Y) of the antenna enhancement accessory (100) and the second end (412) is less than or equal to 0.2 times the first medium wavelength, and the first medium wavelength is the medium wavelength of the center frequency point of the first radiator (410) in the first frequency band.

23. The communication system (2000) according to any one of claims 17 to 22, characterized in that: The first radiator (410) is further used for communication in a second frequency band, and the antenna enhancement accessory (100) is further used for supporting communication in the second frequency band, the center frequency point of the first frequency band is a first frequency, the center frequency point of the second frequency band is a second frequency, the second frequency is higher than the first frequency, and the ratio of the second frequency to the first frequency is a first value R1; The ratio of the length of the first long arm (113) of the antenna enhancement accessory (100) to the length of the first short arm (114) of the antenna enhancement accessory (100) is within the range of 0.9×R1 and 1.1×R1.

24. The communication system (2000) according to any one of claims 17 to 23, characterized in that: In the third direction (Y) of the antenna enhancement accessory (100), the distance between any point on the surface of the feeding element (13) facing the first radiator (410) and the first radiator (410) is greater than 0 and less than or equal to 0.0025 times the first medium wavelength, and the first medium wavelength is the medium wavelength of the center frequency point of the first radiator (410) in the first frequency band.

25. The communication system (2000) according to any one of claims 17 to 24, characterized in that: The length of the conductive part (10) is in the range of 0.4 to 0.6 times the first medium wavelength, wherein the first medium wavelength is the medium wavelength of the first radiator (410) at the center frequency point of the first frequency band.

26. The communication system (2000) according to any one of claims 17 to 25, characterized in that: The space between the first overlapping portion (115) of the first conductive sheet (11) and the second overlapping portion (125) of the second conductive sheet (12) is a first space (100a); the size of the first space (100a) in a first direction (Z) of the antenna enhancement accessory (100) is a first size (D1); the size of the first space (100a) in a third direction (Y) of the antenna enhancement accessory (100) is a second size (D2); the sum of the first size (D1) and the second size (D2) is in the range of 0.29 to 0.31 times the wavelength of the first medium; the second size (D2) is greater than or equal to 0.08 times the wavelength of the first medium; and the first medium wavelength is the medium wavelength of the center frequency point of the first radiator (410) in the first frequency band; The portion of the projection of the first conductive sheet (11) along the first direction (Z) that covers the second conductive sheet (11) is the second overlapping portion (125).

27. The communication system (2000) according to claim 26, characterized in that The first radiator (410) is also used for communicating in a second frequency band, and the antenna enhancement accessory (100) is also used for supporting communication in the second frequency band, the center frequency of the first frequency band is a first frequency, the center frequency of the second frequency band is a second frequency, and the second frequency is higher than the first frequency and less than or equal to 1.5 times the first frequency.

28. The communication system (2000) according to claim 26 or 27, characterized in that The distance from any point on the surface of the first conductive sheet (11) facing the second conductive sheet (12) to the second conductive sheet (12) is in the range of 0.6 times to 1.4 times the first dimension (D1).

29. The communication system (2000) according to any one of claims 17 to 28, characterized in that: The conductive part (10) has a first end face (14) and a second end face (15) disposed opposite to each other in the second direction (X) of the antenna enhancement accessory (100); the feeder (13) has a first edge (135) and a second edge (136) disposed opposite to each other in the second direction (X) of the antenna enhancement accessory (100); the first edge (135) is disposed closer to the first end face (14) than the second edge (136); and the spacing between the first edge (135) and the first end face (14) in the second direction (X) of the antenna enhancement accessory (100) is greater than or equal to 0.1 times the wavelength of the first medium; And / or, the distance between the second edge (136) and the second end surface (15) in the second direction (X) of the antenna enhancement accessory (100) is greater than or equal to 0.1 times the wavelength of the first medium; The first dielectric wavelength is the dielectric wavelength of the first radiator (410) at the center frequency of the first frequency band.

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