Antenna assembly and electronic equipment

Abstract

The invention provides an antenna assembly which comprises a first radiation branch knot, a second radiation branch knot, a first matching adjustment unit, a second matching adjustment unit and a first feed source. The first radiation branch knot comprises a first feeding point, a first matching point and a first grounding point located between the first feeding point and the first matching point. The second radiation branch knot and the first radiation branch knot are adjacent and arranged at an interval and comprise a second matching point. The second matching adjustment unit is connected between the second matching point and the ground, and the first feed source is connected with the first feed point. Under the excitation of the first feed source, the first radiation branch supports a plurality of frequency band combinations through the matching adjustment of the first matching adjustment unit and / or the second matching adjustment unit or further matching with the second radiation branch, each frequency band combination comprises a WiFi frequency band and a cellular frequency band, and the WiFi frequency band and the cellular frequency band are matched with each other. The cellular frequency bands in different frequency band combinations are at least partially different. The invention further provides electronic equipment. According to the invention, the multi-band requirement can be met, and the occupied space is small.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to an antenna assembly and an electronic device having the antenna assembly. Background Art

[0002] At present, with the popularization of 5G communication technology, people's communication experience is getting better and better. However, electronic devices need to support more and more frequency bands, and more and more antennas are needed. With the popularity of full screens and curved screens, the clearance left for antennas is getting less and less. Therefore, how to meet the current multi-band requirements within a limited space has become a problem that needs to be solved. Summary of the invention

[0003] The present application provides an antenna assembly and an electronic device to solve the above problems.

[0004] In a first aspect, an antenna assembly is provided, the antenna assembly comprising a first radiating branch, a first matching adjustment unit, a second radiating branch, a second matching adjustment unit and a first feed source. The first radiating branch comprises a first feeding point, a first grounding point and a first matching point, the first grounding point is used for grounding, and the first grounding point is located between the first feeding point and the first matching point, and the first matching adjustment unit is connected between the first matching point and the ground; the second radiating branch is adjacent to the first radiating branch and is arranged at intervals, and the second radiating branch comprises a second matching point. The second matching adjustment unit is connected between the second matching point and the ground, and the first feed source is connected to the first feeding point. The first radiating branch, under the excitation of the first feed source, supports multiple groups of frequency band combinations through the matching adjustment of the first matching adjustment unit and / or the second matching adjustment unit, or further cooperates with the second radiating branch, wherein each group of frequency band combinations includes a WiFi band and a cellular band, and the cellular bands in different groups of frequency band combinations are at least partially different.

[0005] In a second aspect, an electronic device is also provided, the electronic device comprising an antenna assembly. The antenna assembly comprises a first radiating branch, a first matching adjustment unit, a second radiating branch, a second matching adjustment unit and a first feed source. The first radiating branch comprises a first feeding point, a first grounding point and a first matching point, the first grounding point is used for grounding, and the first grounding point is located between the first feeding point and the first matching point, and the first matching adjustment unit is connected between the first matching point and the ground; the second radiating branch is adjacent to the first radiating branch and is arranged at intervals, and the second radiating branch comprises a second matching point. The second matching adjustment unit is connected between the second matching point and the ground, and the first feed source is connected to the first feeding point. The first radiating branch, under the excitation of the first feed source, supports multiple groups of frequency band combinations through the matching adjustment of the first matching adjustment unit and / or the second matching adjustment unit, or further cooperates with the second radiating branch, wherein each group of frequency band combinations includes a WiFi band and a cellular band, wherein the cellular bands in different groups of frequency band combinations are at least partially different.

[0006] The antenna assembly and electronic device of the present application, the first radiating branch, under the excitation of the first feed source, can support multiple groups of frequency band combinations through the matching adjustment of the first matching adjustment unit and / or the second matching adjustment unit, or further cooperate with the second radiating branch, thereby effectively meeting the current demand for multiple frequency bands and occupying less space. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background technology, the drawings required for use in the embodiments of the present application or the background technology will be described below.

[0008] Figure 1 Schematic diagram of the structure of an antenna assembly in one embodiment of the present application.

[0009] Figure 2 Another structural schematic diagram of the antenna assembly in some embodiments of the present application.

[0010] Figure 3 This is a schematic diagram of the structure of the first matching adjustment unit in some embodiments of the present application.

[0011] Figure 4 Schematic diagram of the structure of the second matching adjustment unit in some embodiments of the present application.

[0012] Figure 5 A further structural schematic diagram of the antenna assembly in some embodiments of the present application.

[0013] Figure 6This is another further structural schematic diagram of the antenna assembly in some embodiments of the present application.

[0014] Figure 7 This is yet another structural schematic diagram of the antenna assembly in some embodiments of the present application.

[0015] Figure 8 Another structural schematic diagram of the second matching adjustment unit in some embodiments of the present application.

[0016] Fig. 9 This is yet another structural schematic diagram of the antenna assembly in some embodiments of the present application.

[0017] Fig.10 This is a structural block diagram of an electronic device in some embodiments of the present application.

[0018] Fig.11 It is a schematic plan view of an electronic device in some embodiments of the present application.

[0019] Fig.12 A schematic diagram of a total system efficiency curve of an antenna assembly of an electronic device of the present application.

[0020] Fig.13 It is a schematic diagram of local current distribution when the antenna assembly of the electronic device of the present application operates in the B3 / B1 frequency band in the first frequency band combination.

[0021] Fig.14 It is a schematic diagram of local current distribution when the antenna assembly of the electronic device of the present application works in the WiFi 2.4G frequency band in the first frequency band combination.

[0022] Fig.15 It is a schematic diagram of local current distribution when the antenna assembly of the electronic device of the present application operates in the N78 frequency band in the first group of frequency band combinations.

[0023] Fig.16 It is a comparative schematic diagram of the radiation efficiency of the antenna assembly of the electronic device of the present application when it includes a capacitor unit and does not include the capacitor unit and operates in the N78 frequency band in the first group of frequency band combinations.

[0024] Fig.17 Another schematic diagram of a total system efficiency curve of the antenna assembly of the electronic device of the present application is shown.

[0025] Fig.18 It is a schematic diagram of local current distribution when the antenna assembly of the electronic device of the present application operates in the B3 / B1 frequency band in the second frequency band combination.

[0026] Fig.19It is a schematic diagram of local current distribution when the antenna assembly of the electronic device of the present application operates in the WiFi 2.4G band and the B41 band in the second frequency band combination.

[0027] Fig. 20 It is a schematic diagram of another system total efficiency curve of the antenna assembly of the electronic device of the present application.

[0028] Fig.21 It is a schematic diagram of local current distribution when the antenna assembly of the electronic device of the present application operates in the B40 band and the WiFi2.4G band in the third frequency band combination.

[0029] Fig. 22 It is a schematic diagram of local current distribution when the antenna assembly of the electronic device of the present application operates in the B41 frequency band in the third frequency band combination.

[0030] Fig.23 It is a schematic diagram of local current distribution when the antenna assembly of the electronic device of the present application operates in the N78 frequency band in the third frequency band combination.

[0031] Fig.24 It is a schematic diagram of local current distribution when the antenna assembly of the electronic device of the present application operates in the N79 frequency band in the third frequency band combination.

[0032] Fig.25 It is a schematic diagram of another system total efficiency curve of the antenna assembly of the electronic device of the present application.

[0033] Fig.26 The antenna directional diagram of the antenna assembly of the electronic device of the present application working in the WiFi 2.4G frequency band under different groups of frequency band combinations.

[0034] Fig. 27 A more specific structural block diagram of an electronic device in some embodiments of the present application. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "thickness", "width", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than implying or indicating 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 present invention. The term "connection" in this application includes the meanings of physical structural connection, electrical connection, direct connection or indirect connection, and can be determined specifically according to the required connection situation. In the description of the embodiments of the present invention, the terms "first", "second", etc. are not specific, but are used to distinguish objects with the same name. If there is a description in the specification, the objects with the same name referred to by the terms "first", "second", etc. may be the same objects.

[0037] See also Figure 1 , is a schematic diagram of the structure of the antenna assembly 1 in an embodiment of the present application. Figure 1 As shown, the antenna assembly 1 includes a first radiation branch 11, a first matching adjustment unit 12, a second radiation branch 13, a second matching adjustment unit 14 and a first feed source 15. The first radiation branch 11 includes a first feeding point F1, a first grounding point G1 and a first matching point P1, wherein the first grounding point G1 is used for grounding, and the first grounding point G1 is located between the first feeding point F1 and the first matching point P1. The first matching adjustment unit 12 is connected between the first matching point P1 and the ground GND; the second radiation branch 13 is adjacent to the first radiation branch 11 and is spaced apart, the second radiation branch 13 includes a second matching point P2, and the second matching adjustment unit 14 is connected between the second matching point P2 and the ground GND. The first feed source 15 is connected to the first feeding point F1. Among them, the first radiating branch 11, under the excitation of the first feed source 15, supports multiple groups of frequency band combinations in cooperation with the second radiating branch 13 through the matching adjustment of the first matching adjustment unit 12 and the second matching adjustment unit 14, wherein each group of frequency band combinations includes a WiFi band and a cellular band, wherein the cellular bands in different groups of frequency band combinations are at least partially different.

[0038] Thus, the antenna assembly 1 of the present application, through the above structure, the first radiating branch 11, under the excitation of the first feed source 15, can support multiple frequency band combinations through the matching adjustment of the first matching adjustment unit 12 and / or the second matching adjustment unit 14, or further cooperate with the second radiating branch 13, and can effectively meet the current demand for multiple frequency bands, and occupy less space. And the multiple frequency band combinations all include WiFi frequency bands, which can ensure that the WiFi frequency band is always present, and can maintain the continuity of WiFi communication, and improve the quality of WiFi communication.

[0039] Among them, in the present application, the antenna component 1 supports multiple groups of frequency band combinations, which does not mean supporting multiple groups of frequency band combinations at the same time, but means supporting multiple groups of frequency band combinations in time-sharing, that is, it can switch between multiple groups of frequency band combinations, that is, it can select one group of frequency band combinations from the multiple groups of frequency band combinations as the currently supported or working group of frequency band combinations, and can support or work in a corresponding group of frequency band combinations as needed, thereby achieving support for multiple groups of frequency band combinations.

[0040] Among them, in the present application, the first radiating branch 11, under the excitation of the first feed source 15, supports multiple groups of frequency band combinations in cooperation with the second radiating branch 13 through the matching adjustment of the first matching adjustment unit 12 and the second matching adjustment unit 14, which means that the support of multiple groups of frequency band combinations requires the joint cooperation of the first radiating branch 11, the first matching adjustment unit 12, the second matching adjustment unit 14, and the second radiating branch 13, but a certain group of frequency band combinations may only require the first radiating branch 11, the first matching adjustment unit 12, the second matching adjustment unit 14, and part of the second radiating branch 13 to be implemented. For example, a certain group of frequency band combinations may be supported only by the first radiating branch 11 under the matching adjustment of the first matching adjustment unit 12.

[0041] In some embodiments, each frequency band combination includes a WiFi band and at least two cellular bands. That is, in some embodiments, each frequency band combination includes a WiFi band and a cellular band, and the number of cellular bands included is at least two.

[0042] Thus, in some embodiments, in the present application, since each group of frequency band combinations includes a WiFi band and at least two cellular bands, the supported frequency bands can be further improved to meet the needs of multiple frequency bands, and at least two frequency bands can be stimulated at the same time, and carrier aggregation (CA) of at least two different frequency bands can be achieved to a certain extent, which is beneficial to improving communication performance.

[0043] In some embodiments, at least two cellular frequency bands included in each frequency band combination include a mid-high frequency band and / or an ultra-high frequency band.

[0044] In some embodiments, the medium and high frequency bands include medium frequency bands and high frequency bands, and the corresponding frequency range is approximately 1700-2700 MHz. The ultra-high frequency bands may include N78 bands, N79 bands and other bands, and the corresponding frequency range is approximately 3 GHz to 5 GHz.

[0045] Thus, by including at least two cellular frequency bands in each frequency band combination, including medium and high frequency bands and / or ultra-high frequency bands, coverage of important frequency bands in 4G and 5G communication networks can be achieved.

[0046] In some embodiments, the WiFi frequency band may include a WiFi 2.4G frequency band.

[0047] In this application, "A" is close to or adjacent to "B", which may mean that the distance between "A" and "B" is less than a certain distance, for example, less than 1 cm, etc. The distance between the first radiation branch 11 and the second radiation branch 13 is less than or satisfies the maximum distance at which the first radiation branch 11 and the second radiation branch 13 can be coupled.

[0048] Among them, in the present application, the aforementioned cooperation with the second radiating branch 13 may refer to that the first radiating branch 11, under the excitation of the first feed source 15, couples and excites the second radiating branch 13 to operate in a corresponding frequency band, and supports a frequency band in a certain group of frequency band combinations, that is, supports the reception and transmission of electromagnetic wave signals in a certain frequency band.

[0049] In some embodiments, Figure 1 As shown, the first radiation branch 11 includes a first open end 11a and a second open end 11b opposite to each other, the second radiation branch 13 includes a third open end 13a and a first ground end 13b opposite to each other, the first open end 11a of the first radiation branch 11 and the third open end 13a of the second radiation branch 13 are adjacent to and spaced apart from each other, the first feeding point F1 is located between the first open end 11a and the first ground point G1, the first matching point P1 is located between the first ground point G1 and the second open end 11b, and the second matching point P2 is located between the third open end 13a and the first ground end 13b.

[0050] That is, in some embodiments, the first radiation branch 11 includes two open ends, a first open end 11a and a second open end 11b, the second radiation branch 13 includes a third open end 13a and a first ground end 13b connected to the ground GND, and the first open end 11a of the first radiation branch 11 and the third open end 13a of the second radiation branch 13 are adjacent to and spaced apart from each other, so as to effectively realize the coupling between the first radiation branch 11 and the second radiation branch 13.

[0051] In some embodiments, since the first radiation branch 11 includes a first grounding point G1 connected to the ground GND between the first open end 11a and the second open end 11b, the first radiation branch 11 substantially forms a T antenna, and thus, the first feeding point F1 is located between the first open end 11a and the first grounding point G1, and the first matching point P1 is located between the first grounding point G1 and the second open end 11b, that is, located on both sides of the first grounding point G1, respectively, which is conducive to forming multiple modes and can support frequency bands in different frequency band combinations. For example, since the first feeding point F1 is located between the first open end 11a and the first grounding point G1, the portion of the first radiation branch 11 located between the first open end 11a and the first grounding point G1 can form an inverted F antenna (IFA, inverted F antenna), and the inverted-F antenna operates in a quarter-wavelength resonant mode, for example, the IFA mode. In addition, since the first matching point P1 is located between the first grounding point G1 and the second open-circuit end 11b, the portion of the first radiating branch 11 located between the second open-circuit end 11b and the first grounding point G1 can form a structure similar to an inverted-F antenna, and also operates in a quarter-wavelength resonant mode, and the first radiating branch 11 as a whole roughly forms a T-shaped antenna, and the first radiating branch 11 as a whole can operate in a balanced mode mode, and so on. The second radiating branch 13 includes an open end, a third open end 13a, and a first grounding end 13b, which is an end connected to the ground GND. As described later, the second radiating branch 13 can support the reception and transmission of electromagnetic wave signals in a preset frequency band under the excitation of another feed source. Therefore, when supporting the preset frequency band, the second radiating branch 13 itself mainly forms an inverted F antenna. Since the inverted F antenna operates in a quarter-wavelength resonant mode, for example, the IFA mode, some branches of the first radiating branch 11 and the second radiating branch 13 form an inverted F antenna, which can make the size of the first radiating branch 11 and the second radiating branch 13 smaller, thereby effectively reducing the overall size.

[0052] See also Figure 2 , is another structural schematic diagram of the antenna assembly 1 in some embodiments of the present application.

[0053] like Figure 2As shown, in some embodiments, the antenna assembly 1 also includes a second feed source 16, and the second radiating branch 13 also includes a second feeding point F2, the second feeding point F2 is located between the third open-circuit end 13a and the first ground end 13b, and is spaced apart from the second matching point P2, and the second feeding point F2 is connected to the second feed source 16, wherein the second radiating branch 13 supports the transmission and reception of electromagnetic wave signals in a preset frequency band under the excitation of the second feed source 16.

[0054] That is, in some embodiments, the second radiation branch 13 itself can also support a preset frequency band under the stimulation of the second feed source 16, thereby effectively improving the number of frequency bands supported by the antenna assembly 1 or the radiation performance.

[0055] In some embodiments, the second feeding point F2 may be located between the third open end 13a and the second matching point P2, or between the second matching point P2 and the first ground end 13b, as long as there is a gap between the second feeding point F2 and the second matching point P2. Figure 2 In the embodiment, the second feeding point F2 is located between the third open end 13a and the second matching point P2 as an example for illustration.

[0056] In some embodiments, the preset frequency band is a frequency band outside the frequency bands in the multiple frequency combinations.

[0057] That is, in some embodiments, the preset frequency band is different from the frequency bands in the multiple frequency combinations. Therefore, in addition to supporting multiple frequency band combinations, the antenna assembly 1 also supports the preset frequency band outside the frequency bands in the multiple frequency combinations, which can effectively increase the number of supported frequency bands to meet the current multi-frequency band requirements.

[0058] In some embodiments, the preset frequency band may also be a certain frequency band in the plurality of frequency combinations, so that the antenna assembly 1 can form a MIMO antenna of the preset frequency band and improve the radiation performance of the preset frequency band.

[0059] In some embodiments, the preset frequency band is a frequency band outside the frequency bands in the multiple frequency combinations, and the preset frequency band may be a frequency band lower than the frequency bands in the multiple frequency combinations, or the preset frequency band is a frequency band in the multiple frequency combinations, and may be a relatively lower frequency band in the multiple frequency combinations.

[0060] Thus, in some embodiments, since the preset frequency band is lower than the frequency band in the multiple frequency combinations or is a relatively low frequency band in the multiple frequency combinations, the second radiation branch 13 is longer, which is conducive to being coupled and excited to work in a higher-order mode in a certain frequency combination.

[0061] In some embodiments, the preset frequency band is a low frequency band, and the cellular frequency bands in the multiple frequency band combinations include medium and high frequency bands and ultra-high frequency bands.

[0062] That is, in some embodiments, the preset frequency band is a low frequency band, and the cellular frequency bands in the multiple frequency band combinations include medium and high frequency bands and ultra-high frequency bands, thereby achieving full coverage of low frequency bands, medium and high frequency bands and ultra-high frequency bands.

[0063] In some embodiments, the low frequency band is approximately the Sub 1G band (band below 1 GHz), and the corresponding frequency range may be 700-960 MHz, and as mentioned above, the medium and high frequency bands include medium frequency bands and high frequency bands, and the corresponding frequency range is approximately 1700-2700 MHz, the frequency range corresponding to the WiFi 2.4G band is approximately 2.400 GHz to 2.483 GHz, and the ultra-high frequency band may include N77 band, N78 band and other bands, and the corresponding frequency range is approximately 3 GHz to 5 GHz. Thus, in the present application, in some embodiments, the low frequency band, medium and high frequency band, WiFi 5G band and ultra-high frequency band are approximately all bands under the Sub 6G band (band below 6 GHz). Therefore, in the present application, in some embodiments, the antenna assembly 1 can achieve full band coverage of the Sub 6G band range.

[0064] In some embodiments, at least one frequency band in the partial group frequency band combination is achieved when the first radiation branch 11 is excited by the first feed source 15 and coupled to excite the second radiation branch 13 to operate in a high-order mode.

[0065] That is, in some embodiments, under the excitation of the first feed source 15, the first radiation branch 11 couples and excites the second radiation branch 13 to operate in a higher-order mode of a certain frequency band, thereby supporting the transmission and reception of electromagnetic signals in the frequency band.

[0066] Among them, since the interference between the higher-order mode and the fundamental mode is small, by exciting the higher-order mode of the second radiation branch 13, the second radiation branch 13 can be coupled to support at least one frequency band in the multiple frequency band combinations while supporting the preset frequency band, and the interference between the two is small.

[0067] Among them, as mentioned above, in some embodiments, since the preset frequency band supported by the second radiation branch node 13 itself is a low frequency band, and the cellular frequency bands in the multiple frequency band combinations include medium and high frequency bands and ultra-high frequency bands, that is, generally speaking, the electrical length of the second radiation branch node 13 will be greater than the electrical length required for the fundamental mode resonance of the cellular frequency bands in the multiple frequency band combinations including the medium and high frequency bands and the ultra-high frequency bands, and is also conducive to coupling excitation of the second radiation branch node 13 to operate in a higher-order mode of a certain frequency band in the multiple frequency band combinations.

[0068] In some embodiments, the antenna component 1 simultaneously operates in all frequency bands in one of the frequency band combinations, and the antenna component 1 switches between the supported multiple frequency band combinations based at least on the matching adjustments of the first matching adjustment unit 12 and the second matching adjustment unit 14.

[0069] That is, in some embodiments, as mentioned above, the antenna assembly 1 supports multiple frequency band combinations, which does not mean supporting multiple frequency band combinations at the same time, but means supporting multiple frequency band combinations in time division, that is, it can switch between multiple frequency band combinations and can support or work in a corresponding set of frequency band combinations as needed, thereby achieving support for multiple frequency band combinations. Specifically, the antenna assembly 1 switches between the supported multiple frequency band combinations at least according to the matching adjustment of the first matching adjustment unit 12 and the second matching adjustment unit 14.

[0070] Please also read Figure 3 and Figure 4 , Figure 3 is a schematic diagram of the structure of the first matching adjustment unit 12 in some embodiments of the present application, Figure 4 Schematic diagram of the structure of the second matching adjustment unit 14 in some embodiments of the present application.

[0071] Among them, Figure 3 and Figure 4As shown, the first matching adjustment unit 12 includes a plurality of matching branches 121, and the plurality of matching branches 121 of the first matching adjustment unit 12 are connected in parallel between the first matching point P1 and the ground GND. The second matching adjustment unit 14 includes a plurality of bandpass filter branches 141, and the plurality of bandpass filter branches 141 are connected in parallel between the second matching point P2 and the ground GND, wherein the plurality of matching branches 121 are used to achieve matching tuning of corresponding frequency bands, wherein each bandpass filter branch 141 is used to achieve bandpass filtering of the corresponding frequency band, and achieve an equivalent grounding effect of the corresponding frequency band, wherein each matching branch 121 and each bandpass filter branch 141 can be in an enabled or disabled state, and the antenna assembly 1 achieves switching between multiple groups of supported frequency band combinations at least according to the switching of the matching branch 121 in the enabled state in the first matching adjustment unit 12 and the switching of the bandpass filter branch 141 in the enabled state in the second matching adjustment unit 14.

[0072] That is, in some embodiments, the antenna assembly 1 supports multiple groups of frequency band combinations, and different groups of frequency band combinations can be selected as a currently supported or working group of frequency band combinations among the multiple groups of frequency band combinations by switching the matching branch 121 in the enabled state in the first matching adjustment unit 12 and switching the bandpass filter branch 141 in the enabled state in the second matching adjustment unit 14.

[0073] In some embodiments, when a matching branch 121 is in an enabled state, it means that the matching branch 121 can play a role in matching and tuning, and when a matching branch 121 is in a disabled state, it means that the matching branch 121 cannot play a role in matching and tuning. Correspondingly, when a bandpass filter branch 141 is in an enabled state, it means that the bandpass filter branch 141 can play a role in bandpass filtering of a corresponding frequency band, and when a bandpass filter branch 141 is in a disabled state, it means that the bandpass filter branch 141 cannot play a role in bandpass filtering of a corresponding frequency band.

[0074] Among them, different matching branches 121 among the multiple matching branches 121 present different matching parameter values. Therefore, when different matching branches 121 are enabled, the first matching adjustment unit 12 as a whole presents different matching parameter values, thereby being able to achieve matching tuning of different frequency bands.

[0075] Therefore, in some implementations, the matching adjustment of the aforementioned first matching adjustment unit 12 may refer to the first matching adjustment unit 12 matching and tuning one frequency band or multiple frequency bands so that the current can resonate in the corresponding frequency band and support the transmission and reception of electromagnetic wave signals in the corresponding frequency band.

[0076] The bandpass frequency bands corresponding to the multiple bandpass filter branches 141 are also different. The bandpass filter branch 141 is used to implement the bandpass filtering of the corresponding frequency band, and the equivalent grounding effect of the corresponding frequency band can refer to that when the bandpass filtering of a certain frequency band needs to be implemented, the bandpass filter branch 141 corresponding to the frequency band can be selected to be in an enabled state. When the bandpass filter branch 141 is in an enabled state, the electromagnetic wave signal of the corresponding frequency band can be allowed to pass through, and the electromagnetic wave signal of other frequency bands outside the frequency band can be prevented from passing through. Since the bandpass filter branch 141 is connected between the second matching point P2 and the ground GND, it is equivalent to that the second matching point P2 is a grounding point for the corresponding frequency band at this time, and the electromagnetic wave signal of the frequency band can be conducted to the ground through the bandpass filter branch 141 of the corresponding frequency band, thereby achieving the equivalent grounding effect of the corresponding frequency band.

[0077] Among them, the bandpass filter branch 141 currently in the enabled state realizes the bandpass filtering of the corresponding frequency band, that is, realizes the band blocking of other frequency bands outside the frequency band, that is, prevents the electromagnetic wave signals of other frequency bands outside the frequency band from passing through, and at this time, the second matching point P2 is an open circuit point for other frequency bands outside the corresponding frequency band, that is, it is not grounded. Therefore, through the bandpass filter branch 141, when the frequency band currently required to be supported does not want to be grounded at the second matching point P2, the bandpass filter branch 141 corresponding to other frequency bands can be selected to be enabled, and when the frequency band currently required to be supported needs to be grounded through the second matching point P2, the bandpass filter branch 141 corresponding to the frequency band currently required to be supported can be selected to be enabled.

[0078] Thus, in some embodiments, when the frequency band currently required to be supported hopes to be grounded at the second matching point P2, that is, when the second matching point P2 is desired to be the grounding point, the bandpass filter branch 141 corresponding to the frequency band currently required to be supported can be selected and controlled to be enabled. At this time, the second matching point P2 is the grounding point for the frequency band, and the electromagnetic wave signal of the frequency band can be conducted to the ground through the bandpass filter branch 141 of the corresponding frequency band in the enabled state, wherein the bandpass filter branches 141 corresponding to other frequency bands can be in the enabled state or the disabled state. Among them, when the frequency band currently required to be supported does not want to be grounded at the second matching point P2, that is, when the second matching point P2 is desired to be an open point, the bandpass filter branch 141 corresponding to the frequency band currently required to be supported can be controlled to be disabled, so as to ensure that the second matching point P2 is an open point for the frequency band. At this time, since the bandpass filter branches 141 corresponding to other frequency bands cannot allow the electromagnetic wave signals of the corresponding frequency bands to pass through, the bandpass filter branches 141 corresponding to other frequency bands can also be in an enabled state or a disabled state.

[0079] Therefore, in some embodiments, the matching adjustment of the second matching adjustment unit 14 mentioned above may refer to making the second matching point P2 in an open circuit state or a short circuit state with respect to the frequency band currently required to be supported.

[0080] In some embodiments, the first matching adjustment unit 12 further includes a first switch module 120, the first switch module 120 is connected between the multiple matching branches 121 and the ground GND, the multiple matching branches 121 are connected in parallel between the first matching point P1 and the first switch module 120, or the first switch module 120 is connected between the multiple matching branches 121 and the first matching point P1, the multiple matching branches 121 are connected in parallel between the first switch module 120 and the ground GND; wherein, the second matching adjustment unit 14 further includes a second switch module 140, the second switch module 140 is connected between the multiple band-pass filter branches 141 and the ground GND, the multiple band-pass filter branches 141 are connected in parallel between the second matching point P2 and the second switch module 140, or the second switch module is connected between the multiple band-pass filter branches 141 and the second matching point P2, the multiple band-pass filter branches 141 are connected in parallel between the second switch module 140 and the ground GND. The first switch module 120 is used to conduct the electrical connection between the corresponding matching branch 121 and the first matching point P1 and the ground GND, so that the corresponding matching branch 121 is in an enabled state, and the second switch module 140 is used to conduct the electrical connection between the corresponding bandpass filter branch 141 and the second matching point P2 and the ground GND, so that the corresponding bandpass filter branch 141 is in an enabled state. Each matching branch 121 includes a matching element M1, and each bandpass filter branch 141 includes an LC series circuit M3, wherein the matching element includes a capacitor or an inductor, and the LC series circuit includes a capacitor and an inductor connected in series, wherein the electrical connection between different matching branches 121 and the first matching point P1 and the ground GND is conducted by the first switch module 120, and the electrical connection between different bandpass filter branches 141 and the second matching point P2 and the ground GND is conducted by the second switch module 140, so as to switch the matching branch 121 and the bandpass filter branch 141 in the enabled state.

[0081] That is, in some embodiments, the first matching adjustment unit 12 also includes a first switch module 120, and the second matching adjustment unit 14 also includes a second switch module 140. The first switch module 120 may be located between the first matching point P1 and the multiple matching branches 121 or between the multiple matching branches 121 and the ground GND. Thus, the multiple matching branches 121 are connected in parallel between the first matching point P1 and the ground GND, which specifically refers to the multiple matching branches 121 being connected in parallel between the first switch module 120 and the ground GND, or being connected in parallel between the first matching point P1 and the first switch module 120. Similarly, the second switch module 140 can be connected between the multiple bandpass filter branches 141 and the ground GND, or connected between the multiple bandpass filter branches 141 and the second matching point P2, so that the multiple bandpass filter branches 141 are connected in parallel between the second matching point P2 and the ground GND, which specifically means that the multiple bandpass filter branches 141 are connected in parallel between the second matching point P2 and the second switch module 140, or the multiple bandpass filter branches 141 are connected in parallel between the second switch module 140 and the ground GND.

[0082] Thus, in some embodiments, by conducting the electrical connection between different matching branches 121 and the first matching point P1 and the ground GND through the first switch module 120, and by conducting the electrical connection between different bandpass filter branches 141 and the second matching point P2 and the ground GND through the second switch module 140, the matching branch 121 and the bandpass filter branch 141 in the enabled state can be switched.

[0083] in, Figure 3 and Figure 4 In the figure, the first switch module 120 is located between the multiple matching branches 121 and the ground GND, the multiple matching branches 121 are connected in parallel between the first matching point P1 and the first switch module 120, and the second switch module 140 is connected between the multiple bandpass filter branches 141 and the ground GND, and the multiple bandpass filter branches 141 are connected in parallel between the second matching point P2 and the second switch module 140.

[0084] like Figure 3 As shown, in some embodiments, the first switch module 120 may include a plurality of matching switches M2, the plurality of matching switches M2 correspond to a plurality of matching branches 121 one by one, and each matching switch M2 is connected in series with a matching element M1 of a corresponding matching branch 121. Figure 4As shown, in some embodiments, the second switch module 140 further includes a plurality of filter switches M4, wherein the plurality of filter switches M4 correspond one-to-one to the plurality of bandpass filter branches 141, wherein each filter switch M4 is connected in series with a corresponding LC series circuit M3.

[0085] In some embodiments, the matching branch 121 and the bandpass filtering branch 141 in the enabled state are switched according to the switching of the on and off states of the matching switch M2 and the filtering switch M4.

[0086] That is, in some embodiments, Figure 3 As shown, the first switch module 120 may include a plurality of matching switches M2, each matching switch M2 and the matching element M1 of the corresponding matching branch 121 are connected in series between the first matching point P1 and the ground GND, and the matching parameter values ​​of the matching elements M1 in different matching branches 121 are different. When the matching switch M2 corresponding to a matching branch 121 is turned on, the electrical connection between the matching branch 121 and the first matching point P1 and the ground GND is turned on, and the matching branch 121 is in an enabled state. The matching element M1 is electrically connected between the first matching point P1 and the ground GND to achieve matching tuning of the corresponding frequency band. When the matching switch M2 corresponding to the matching branch 121 is turned off, the branch where the matching branch 121 is located is disconnected, and the matching branch 121 is in a disabled state.

[0087] And as Figure 4 As shown, in some embodiments, the second switch module 140 further includes a plurality of filter switches M4, each filter switch M4 and the LC series circuit M3 of the corresponding bandpass filter branch 141 are connected in series between the second matching point P2 and the ground GND, and different LC series circuits M3 include different values ​​of capacitance and / or inductance, so that the resonant frequency is different, and bandpass filtering of different frequency bands can be achieved. Wherein, when the filter switch M4 corresponding to a certain bandpass filter branch 141 is turned on, the bandpass filter branch 141 is in an enabled state, and the LC series circuit M3 is electrically connected between the second matching point P2 and the ground GND to perform bandpass filtering on the corresponding frequency band, and when the filter switch M4 corresponding to the bandpass filter branch 141 is turned off, the branch where the bandpass filter branch 141 is located is disconnected, and the bandpass filter branch 141 is in a disabled state.

[0088] The matching element M1 may include a capacitor and / or an inductor, and the matching parameter value may include a capacitance value and / or an inductance value.

[0089] The different matching parameter values ​​of the matching elements M1 in different matching branches 121 include different types and / or different parameter values ​​of the matching elements M1 in different matching branches 121 .

[0090] For example, the matching element M1 of a certain matching branch 121 includes a capacitor, the matching element M1 of another matching branch 121 includes an inductor, and the matching element M1 of another matching branch 121 also includes a capacitor, but the capacitance value is different from that of the capacitors included in other matching branches, and so on.

[0091] In some embodiments, the matching element M1 may include a single element or multiple elements, for example, a single capacitor or inductor, or multiple capacitors and / or inductors connected in series or in parallel. Each matching element M1 includes the same element type, for example, a matching element M1 may include one or more capacitors, or one or more inductors.

[0092] The number of capacitors and inductors connected in series in each LC series circuit M3 may also be equal to or greater than one. For example, a certain LC series circuit M3 may include one capacitor and one inductor connected in series, or two capacitors and one inductor connected in series, and so on.

[0093] in, Figure 3 In the figure, it is illustrated by taking the case where the number of the matching branches 121 is four and the matching elements M1 included in the four matching branches 121 are capacitor, inductor, capacitor and capacitor respectively.

[0094] Among them, different LC series circuits M3 include capacitors with different capacitance values ​​and / or inductors with different inductance values, so that the LC values ​​of the LC series circuits are different, and the corresponding resonant frequencies are different, so that bandpass filtering in different frequency bands can be achieved.

[0095] in, Figure 4 In the embodiment, the number of the band-pass filter branches 141 is four, and each band-pass filter branch 141 includes a capacitor and an inductor connected in series.

[0096] in, Figure 3 The first matching adjustment unit 12 and Figure 4 The second matching adjustment unit 14 shown is also only an exemplary structure.

[0097] In some embodiments, the first switch module 120 may further include a single-pole multi-throw switch, for example, one end of the matching elements M1 in the multiple matching branches 121 is connected to the first matching point P1, and the single-pole multi-throw switch is used to selectively establish a connection between the other end of the matching element M1 in one of the matching branches 121 and the ground GND, so that the matching element M1 in one of the matching branches 121 is electrically connected between the first matching point P1 and the ground GND. The single-pole multi-throw switch may include a fixed end and a throwing end, the fixed end is fixedly connected to the ground GND, and the throwing end can be selectively connected to the other end of the matching element M1 in one of the matching branches 121. Among them, when the first switch module 120 is located between the first matching point P1 and the multiple matching branches 121, one end of the matching elements M1 in the multiple matching branches 121 are all connected to the ground GND, the fixed end of the single-pole multi-throw switch included in the first switch module 120 can be connected to the first matching point P1, and the throwing end can be selectively connected to the other end of the matching element M1 in one of the matching branches 121.

[0098] In some embodiments, the second switch module 140 may also include a single-pole multi-throw switch. For example, one end of the LC series circuit M3 in the multiple band-pass filter branches 141 is connected to the second matching point P2, and the single-pole multi-throw switch is used to selectively establish a connection between the other end of the LC series circuit M3 in one of the band-pass filter branches 141 and the ground GND, so that the LC series circuit M3 in one of the band-pass filter branches 141 is electrically connected between the second matching point P2 and the ground GND. The single-pole multi-throw switch may include a fixed end and a throwing end, the fixed end is fixedly connected to the ground GND, and the throwing end can be selectively connected to the other end of the LC series circuit M3 in one of the band-pass filter branches 141. Among them, when the second switch module 140 is located between the second matching point P2 and the multiple bandpass filter branches 141, one end of the LC series circuit M3 in the multiple bandpass filter branches 141 is connected to the ground GND, and the fixed end of the single-pole multi-throw switch included in the second switch module 140 can be connected to the second matching point P2, and the throwing end can be selectively connected to the other end of the LC series circuit M3 in one of the bandpass filter branches 141.

[0099] See also Figure 5 , is a further structural diagram of the antenna assembly 1 in some embodiments of the present application. Among them, Figure 5 Can be in Figure 2 A schematic diagram showing more components and / or numbers based on the above.

[0100] like Figure 5As shown, the first radiation branch 11 includes a first branch portion Z1 and a second branch portion Z2, wherein the first branch portion Z1 is a branch portion of the first radiation branch 11 located between the first grounding point G1 and the first open end 11a, and the second branch portion Z2 is a branch portion of the first radiation branch 11 located between the first grounding point G1 and the second open end 11b. That is, in some embodiments, the first grounding point G1 divides the first radiation branch 11 into a first branch portion Z1 located between the first grounding point G1 and the first open end 11a and a second branch portion Z2 located between the first grounding point G1 and the second open end 11b. In some embodiments, the first radiation branch 11 is used to support at least one frequency band in the multiple frequency band combinations, the first branch portion Z1 is also used to support at least one frequency band in the multiple frequency band combinations, and the second branch portion Z2 is also used to support at least one frequency band in the multiple frequency band combinations. That is, in some embodiments, at least one frequency band in the multiple frequency band combinations is achieved by the first radiation branch 11 resonating as a whole in the frequency band, and at least one frequency band in the multiple frequency band combinations is achieved by the first branch part Z1 resonating in the frequency band, and at least one frequency band in the multiple frequency band combinations is achieved by the second branch part Z2 resonating in the frequency band.

[0101] That is, in some embodiments, as described above, the first grounding point G1 of the first radiation branch 11 is located between the first open end 11a and the second open end 11b, the first radiation branch 11 roughly forms a T antenna, and the first radiation branch 11 can operate in a balanced mode. The first grounding point G1 divides the first radiating branch 11 into a first branch portion Z1 located between the first grounding point G1 and the first open end 11a, and a second branch portion Z2 located between the first grounding point G1 and the second open end 11b. Since the first feeding point F1 is located between the first grounding point G1 and the first open end 11a, that is, located on the first branch portion Z1, and the first matching point P1 is located between the first grounding point G1 and the second open end 11b, that is, located on the second branch portion Z2, the first branch portion Z1 forms an inverted F antenna (IFA), and the second branch portion Z2 roughly forms an inverted F antenna (IFA), and can operate in the IFA mode or a quarter-wavelength resonant mode similar to the IFA mode.

[0102] Therefore, the first radiation branch 11 , the first branch portion Z1 , and the second branch portion Z2 can work in corresponding modes, and cooperate with the first matching adjustment unit 12 to support multiple frequency bands.

[0103] In some embodiments, the plurality of frequency band combinations include a first frequency band combination, a second frequency band combination, and a third frequency band combination. Wherein, the first radiation branch 11 supports the frequency bands in the first frequency band combination through the matching adjustment of the first matching adjustment unit 12 and the second matching adjustment unit 14 under the excitation of the first feed source 15, and further cooperates with the second radiation branch 13; the first branch part Z1 and the second branch part Z2 of the first radiation branch 11 support the frequency bands in the second frequency band combination through the matching adjustment of the first matching adjustment unit 12 under the excitation of the first feed source; the first radiation branch 11 and the second branch part Z2 of the first radiation branch 11 support the frequency bands in the third frequency band combination through the matching adjustment of the first matching adjustment unit 12 and the second matching adjustment unit 14 under the excitation of the first feed source 15, and further cooperate with the second radiation branch 13.

[0104] That is, in some embodiments, the multiple groups of frequency band combinations include a first group of frequency band combinations, a second group of frequency band combinations, and a third group of frequency band combinations, and the frequency bands in the first group of frequency band combinations and the third group of frequency band combinations are achieved by the first radiation branch 11 under the excitation of the first feed source 15 through the matching adjustment of the first matching adjustment unit 12 and the second matching adjustment unit 14, and further in cooperation with the second radiation branch 13, and the frequency bands in the second group of frequency band combinations are achieved by the first branch part Z1 of the first radiation branch 11 and the second branch part Z2 under the excitation of the first feed source through the matching adjustment of the first matching adjustment unit 12.

[0105] In some embodiments, as described above, the first matching adjustment unit 12 includes a plurality of matching branches 121, and the plurality of matching branches 121 of the first matching adjustment unit 12 are connected in parallel between the first matching point P1 and the ground GND. The second matching adjustment unit 14 includes a plurality of bandpass filter branches 141, and the plurality of bandpass filter branches 141 are connected in parallel between the second matching point P2 and the ground GND. The plurality of matching branches are used to achieve matching tuning, and each bandpass filter branch is used to achieve bandpass filtering of a corresponding frequency band, wherein the plurality of matching branches and the plurality of bandpass filter branches can be selectively in an enabled or disabled state.

[0106] As mentioned above, the first matching adjustment unit 12 also includes a first switch module 120 to realize the switching of enabling and disabling of the multiple matching branches 121, and the second matching adjustment unit 14 also includes a second switch module 140 to realize the switching of enabling and disabling of the bandpass filter branch 141.

[0107] For example, as mentioned above, each matching branch 121 includes a matching element M1, and the first switch module 120 includes multiple matching switches M2. Each matching switch M2 is connected in series with the corresponding matching element M1 between the first matching point P1 and the ground GND, and the matching parameter values ​​of the matching elements M1 in different matching branches 121 are different. When the matching switch M2 corresponding to a matching branch 121 is turned on, the matching branch 121 is in an enabled state, and the matching element M1 is electrically connected between the first matching point P1 and the ground GND to achieve matching tuning of the corresponding frequency band. When the matching switch M2 corresponding to the matching branch 121 is disconnected, the branch where the matching branch 121 is located is disconnected, and the matching branch 121 is in a disabled state. As mentioned above, in some embodiments, each bandpass filter branch 141 includes an LC series circuit M3, and the second switch module 140 also includes a plurality of filter switches M4, each filter switch M4 and the corresponding LC series circuit M3 of the bandpass filter branch 141 are connected in series between the second matching point P2 and the ground GND, wherein different LC series circuits M3 include different values ​​of capacitance and / or inductance, so that the resonant frequency is different, and bandpass filtering of different frequency bands can be achieved. Wherein, when the filter switch M4 corresponding to a certain bandpass filter branch 141 is turned on, the bandpass filter branch 141 is in an enabled state, and the LC series circuit M3 is electrically connected between the second matching point P2 and the ground GND to perform bandpass filtering on the corresponding frequency band, and when the filter switch M4 corresponding to the bandpass filter branch 141 is turned off, the branch where the bandpass filter branch 141 is located is disconnected, and the bandpass filter branch 141 is in a disabled state. For more specific structures of the first matching adjustment unit 12 and the second matching adjustment unit 14 , please refer to the above description, which will not be repeated here.

[0108] In some embodiments, the first group of frequency band combinations includes B3 / B1 band, WiFi 2.4G band and N78 band. When the antenna assembly 1 operates in a frequency band in the first group of frequency band combinations, the first radiation branch 11 operates in a half-wavelength balanced mode under the excitation of the first feed source 15 and the matching adjustment of the first matching adjustment unit 12 to support the reception and transmission of electromagnetic wave signals in the B3 band or the B1 band, wherein the second matching adjustment unit 14 implements bandpass filtering of a frequency band other than the WiFi2.4G and N78 bands, the second radiation branch 13 operates in a three-quarter wavelength high-order mode under the coupling excitation of the first feed source 15 to support the reception and transmission of electromagnetic wave signals in the WiFi 2.4G band, and the second radiation branch 13 also operates in a four-five wavelength high-order mode under the coupling excitation of the first feed source 15 to support the reception and transmission of electromagnetic wave signals in the N78 band.

[0109] Among them, the B3 / B1 frequency band refers to the B3 frequency band or the B1 frequency band, that is, in the first group of frequency band combinations, the WiFi2.4G frequency band and the N78 frequency band remain always present, and can be switched between the B3 frequency band and the B1 frequency band.

[0110] Thus, in some embodiments, the first radiation branch 11 operates in a half-wavelength balanced mode under the excitation of the first feed source 15 and the matching adjustment of the first matching adjustment unit 12 to support the reception and transmission of electromagnetic wave signals in the B3 band or the B1 band, and the second matching adjustment unit 14 implements bandpass filtering of a frequency band other than the WiFi 2.4G and N78 bands. Therefore, the second matching adjustment unit 14 is equivalent to an open circuit relative to the WiFi 2.4G and N78 bands. Therefore, the electromagnetic wave signals in the WiFi 2.4G and N78 bands will not be grounded through the second matching point P2, and since the frequency band supported by the second radiation branch 13 is a low-frequency band, which is lower than the WiFi 2.4G and N78 bands, the entire second radiation branch 13 can be coupled and excited to produce a higher-order mode of the WiFi 2.4G and N78 bands, and can support the WiFi 2.4G and N78 bands, that is, support the WiFi Transmission and reception of electromagnetic wave signals in 2.4G and N78 frequency bands.

[0111] In some embodiments, when the matching branch 121 corresponding to the B3 frequency band in the first matching adjustment unit 12 is enabled, the first radiation branch 11 operates in a half-wavelength balanced mode under the excitation of the first feed source 15 and the matching adjustment of the first matching adjustment unit 12 to support the reception and transmission of electromagnetic wave signals in the B3 frequency band; when the matching branch 121 corresponding to the B1 frequency band in the first matching adjustment unit 12 is enabled, the first radiation branch 11 operates in a half-wavelength balanced mode under the excitation of the first feed source 15 and the matching adjustment of the first matching adjustment unit 12 to support the reception and transmission of electromagnetic wave signals in the B1 frequency band.

[0112] That is, in some embodiments, as described above, the matching parameter values ​​of the matching elements M1 in different matching branches 121 are different. When the matching switch M2 corresponding to a matching branch 121 is turned on and the matching branch 121 is in an enabled state, the matching element M1 is electrically connected between the first matching point P1 and the ground GND to achieve matching tuning of the corresponding frequency band.

[0113] Among them, the first radiation branch 11 operates in a half-wavelength balanced mode under the excitation of the first feed source 15 and the matching adjustment of the first matching adjustment unit 12 to support the reception and transmission of electromagnetic wave signals in the B3 frequency band. It can also mean that the electrical length of the first radiation branch 11 is 1 / 2 of the wavelength corresponding to the B3 frequency band under the matching of the matching branch 121 of the first matching adjustment unit 12 corresponding to the B3 frequency band, so that it can resonate in the B3 frequency band through the half-wavelength balanced mode of half wavelength, and operate in the half-wavelength balanced mode under the excitation of the first feed source 15 to support the reception and transmission of electromagnetic wave signals in the B3 frequency band. Among them, the first radiation branch 11 operates in a half-wavelength balanced mode under the excitation of the first feed source 15 and the matching adjustment of the first matching adjustment unit 12 to support the reception and transmission of electromagnetic wave signals in the B1 frequency band. It can also mean that the electrical length of the first radiation branch 11 is 1 / 2 of the wavelength corresponding to the B1 frequency band under the matching of the matching branch 121 of the first matching adjustment unit 12 corresponding to the B1 frequency band, so that it can resonate in the B1 frequency band through the half-wavelength balanced mode of half wavelength, and operate in the half-wavelength balanced mode under the excitation of the first feed source 15 to support the reception and transmission of electromagnetic wave signals in the B1 frequency band.

[0114] In some embodiments, the matching element M1 included in the matching branch 121 corresponding to the B3 frequency band in the first matching adjustment unit 12 may be a capacitor, and the capacitance value of the capacitor may be 2pF (picofarad), and the matching element M1 included in the matching branch 121 corresponding to the B1 frequency band in the first matching adjustment unit 12 may also include a capacitor, and the capacitance value of the capacitor may be 0.7pF. Obviously, in some embodiments, the matching element M1 and the matching parameter value included in the matching branch 121 corresponding to the B3 frequency band and corresponding to B1 in the first matching adjustment unit 12 may be other suitable matching parameter values.

[0115] In some embodiments, the first grounding point G1 may be located at the midpoint of the electrical length of the first radiation branch 11, that is, the equivalent electrical lengths between the first grounding point G1 and the first open end 11a and the second open end 11b are equal, so as to satisfy the current distribution of the balanced mode with strong current in the middle and weak current on both sides. The electrical length of the first radiation branch 11 is at least the equivalent electrical length under the matching of the first matching adjustment unit 12, that is, in some embodiments, the electrical length of the first radiation branch 11 may be approximately half the wavelength of the B3 frequency band under the cooperation of the matching branch 121 corresponding to the B3 frequency band, and the electrical length of the first radiation branch 11 may also be approximately half the wavelength of the B1 frequency band under the cooperation of the matching branch 121 corresponding to the B1 frequency band.

[0116] In some embodiments, when the antenna assembly 1 supports the first group of frequency band combinations, the second matching adjustment unit 14 can implement bandpass filtering of a frequency band other than the WiFi 2.4G and N78 frequency bands, and so on, so that the second matching adjustment unit 14 is equivalent to an open circuit for the WiFi 2.4G and N78 frequency bands. In this case, the bandpass filter branch 141 included in the second matching adjustment unit 14 for implementing bandpass filtering of a frequency band other than the WiFi 2.4G and N78 frequency bands can be in an enabled state, and bandpass filtering is performed on the frequency band.

[0117] For example, a frequency band other than the WiFi 2.4G and N78 frequency bands may be a frequency band with a center frequency of 2 GHz, such as the B1 frequency band, so that when the first radiation branch 11 is excited by the first feed source 15 and is matched and adjusted by the first matching adjustment unit 12 and operates in a half-wavelength balanced mode to support the transmission and reception of electromagnetic wave signals in the B1 frequency band, the corresponding LC series circuit M3 of the bandpass filter branch 141 allows the electromagnetic wave signals in the B1 frequency band to pass through, which is equivalent to the second matching point P2 being a grounding point relative to the B1 frequency band. At this time, the energy of the electromagnetic wave signals in the B1 frequency band can be effectively blocked and concentrated on the first radiation branch 11, thereby improving the radiation performance of the B1 frequency band. In some embodiments, the capacitance value of the capacitor included in the LC series circuit M3 of the currently enabled bandpass filter branch 141 may be a 1.2 pF capacitor, and the inductance value of the included inductor may be 6.8 nH (nanohenry). In some embodiments, a frequency band other than the WiFi 2.4G and N78 frequency bands may also be the B3 frequency band. When the first radiation branch 11 operates in a half-wavelength balanced mode under the excitation of the first feed source 15 and the matching adjustment of the first matching adjustment unit 12 to support the reception and transmission of electromagnetic wave signals in the B3 frequency band, the bandpass filter branch 141 corresponding to the B3 frequency band is enabled, and the bandpass filter branch 141 corresponding to the B3 frequency band allows the electromagnetic wave signals in the B3 frequency band to pass through. At this time, it is equivalent to that the second matching point P2 is a grounding point relative to the B3 frequency band. At this time, the energy of the electromagnetic wave signals in the B3 frequency band can be effectively blocked and concentrated on the first radiation branch 11, thereby improving the radiation performance.

[0118] That is, in the present application, when the second radiation branch 13 is coupled to excite a higher-order mode of the A band, and the second radiation branch 13 supports the reception and transmission of electromagnetic wave signals in the B band, at this time, a certain frequency band outside the A band may be the B band, that is, at this time, the second matching adjustment unit 14 may be a bandpass filter branch 141 of the bandpass filter corresponding to the B band and may be in an enabled state, so that the second matching adjustment unit 14 is an open circuit relative to the A band, and the second matching point P2 is equivalent to an open circuit point, without affecting the higher-order modes of the A band, and can improve the radiation performance of the B band.

[0119] Obviously, in some embodiments, a certain frequency band other than the WiFi 2.4G and N78 frequency bands may be any other frequency band, for example, it may also be an intermediate frequency band, etc., and the values ​​of the capacitor and inductor included in the LC series circuit M3 of the currently enabled bandpass filter branch 141 may be other corresponding values. That is, in some embodiments, when the second radiation branch 13 is coupled to excite a higher-order mode of the A frequency band, and the second radiation branch 13 supports the transmission and reception of electromagnetic wave signals of the B frequency band, the certain frequency band other than the A frequency band may also be other frequency bands other than the A frequency band and the B frequency band.

[0120] In some embodiments, the second group of frequency band combinations includes B3 / B1 frequency bands, WiFi 2.4G frequency bands and B41 frequency bands. When the antenna assembly 1 operates in a frequency band in the second group of frequency band combinations, the second branch portion Z2 of the first radiation branch 11 operates in a quarter-wavelength resonance mode under the excitation of the first feed source 15 and the matching adjustment of the first matching adjustment unit 12 to support the reception and transmission of electromagnetic wave signals in the B3 frequency band or the B1 frequency band. The first branch portion Z1 of the first radiation branch 11 operates in a quarter-wavelength resonance mode under the excitation of the first feed source 15 to support the WiFi 2.4G frequency band and the B41 frequency band.

[0121] That is, in some embodiments, the first grounding point G1 divides the first radiating branch 11 into a first branch portion Z1 located between the first open end 11a and the first grounding point G1 and a second branch portion Z2 located between the second open end 11b and the first grounding point G1. The first branch portion Z1 and the second branch portion Z2 are branches with one end open and the other end grounded, and roughly form an IFA antenna, thereby being able to work in a quarter-wavelength resonant mode, that is, the IFA mode, and support the corresponding frequency band.

[0122] In some embodiments, the second frequency band combination may support the WiFi 2.4G frequency band and the B41 frequency band to be always present, while the B3 frequency band and the B1 frequency band may be switchable.

[0123] Among them, similarly, when the matching branch 121 corresponding to the B3 frequency band in the first matching adjustment unit 12 is enabled, the second branch part Z2 operates in a quarter-wavelength resonance mode under the excitation of the first feed source 15 and the matching adjustment of the first matching adjustment unit 12 to support the reception and transmission of electromagnetic wave signals in the B3 frequency band; when the matching branch 121 corresponding to the B1 frequency band in the first matching adjustment unit 12 is enabled, the second branch part Z2 operates in a quarter-wavelength resonance mode under the excitation of the first feed source 15 and the matching adjustment of the first matching adjustment unit 12 to support the reception and transmission of electromagnetic wave signals in the B1 frequency band.

[0124] That is, in some embodiments, as described above, the matching parameter values ​​of the matching elements M1 in different matching branches 121 are different. When the matching switch M2 corresponding to a matching branch 121 is turned on and the matching branch 121 is in an enabled state, the matching element M1 is electrically connected between the first matching point P1 and the ground GND to achieve matching tuning of the corresponding frequency band.

[0125] Among them, the second branch part Z2 operates in a quarter-wavelength resonance mode under the excitation of the first feed source 15 and the matching adjustment of the first matching adjustment unit 12 to support the reception and transmission of electromagnetic wave signals in the B3 frequency band. It can also mean that the electrical length of the second branch part Z2 is 1 / 4 of the wavelength corresponding to the B3 frequency band under the matching of the matching branch 121 of the first matching adjustment unit 12 corresponding to the B3 frequency band, so that it can resonate in the B3 frequency band through a quarter-wavelength resonance mode, and operate in a quarter-wavelength resonance mode under the excitation of the first feed source 15 to support the reception and transmission of electromagnetic wave signals in the B3 frequency band. Among them, the first radiation branch 11 operates in a quarter-wavelength resonance mode under the excitation of the first feed source 15 and the matching adjustment of the first matching adjustment unit 12 to support the reception and transmission of electromagnetic wave signals in the B1 frequency band. It can also mean that the electrical length of the first radiation branch 11 is 1 / 4 of the wavelength corresponding to the B1 frequency band under the matching of the matching branch 121 of the first matching adjustment unit 12 corresponding to the B1 frequency band, so that it can resonate in the B1 frequency band through the quarter-wavelength resonance mode, and operate in the quarter-wavelength resonance mode under the excitation of the first feed source 15 to support the reception and transmission of electromagnetic wave signals in the B1 frequency band.

[0126] In some embodiments, when the antenna assembly 1 operates in a frequency band in the second frequency band combination, the matching element M1 included in the matching branch 121 corresponding to the B3 frequency band in the first matching adjustment unit 12 may be a capacitor, and the capacitance value of the capacitor may be 0.7 pF (picofarad), and the matching element M1 included in the matching branch 121 corresponding to the B1 frequency band in the first matching adjustment unit 12 may also include a capacitor, and the capacitance value of the capacitor may be 0.3 pF. Obviously, in some embodiments, the matching element M1 and its matching parameter value included in the matching branch 121 corresponding to the B3 frequency band and corresponding to B1 in the first matching adjustment unit 12 may be other suitable matching parameter values.

[0127] Among them, since the WiFi 2.4G frequency band and the B41 frequency band are relatively close, the B41 frequency band is 2.5-2.7GHz, and the resonant frequency covering the WiFi 2.4G frequency band is approximately 2.45GHz. Therefore, the edge frequency band of the B41 frequency band covers the edge frequency band. Therefore, the first branch part Z1 of the first radiation branch 11 operates in a quarter-wavelength resonant mode under the excitation of the first feed source 15 and can simultaneously support the WiFi 2.4G frequency band and the B41 frequency band.

[0128] In some embodiments, the equivalent electrical length of the first branch portion Z1 of the first radiation branch 11 is approximately one-fourth of the wavelength corresponding to a frequency band that can cover the WiFi 2.4G band and the B41 band. For example, the equivalent electrical length of the first branch portion Z1 of the first radiation branch 11 can be one-fourth of the wavelength corresponding to 2.6 GHz, and can resonate at 2.6 GHz, thereby simultaneously covering the WiFi 2.4G band and the B41 band.

[0129] In some embodiments, the equivalent electrical length of the first branch portion Z1 of the first radiation branch 11 may be the physical length of the first branch portion Z1 itself, or may be the equivalent electrical length in cooperation with a corresponding matching unit.

[0130] In some embodiments, the first radiating branch 11 and the second radiating branch 13 are strip-shaped, and the physical length of the first radiating branch 11, the second radiating branch 13, etc. including the first branch portion Z1 and the second branch portion Z2 is the dimension along the extension direction of the first radiating branch 11 and the second radiating branch 13.

[0131] The extending direction of the first radiation branch 11 and the second radiation branch 13 is the extending direction of the longest side of the first radiation branch 11 and the second radiation branch 13. Figure 1-Figure 2 As shown in the above figures, the first radiating branch 11 and the second radiating branch 13 are in the shape of straight bars, and the longest sides of the first radiating branch 11 and the second radiating branch 13 are the longest straight sides of the first radiating branch 11 and the second radiating branch 13 .

[0132] In some embodiments, Figure 1 and Figure 2 As shown, the extension directions of the first radiating branches 11 and the second radiating branches 13 are substantially the same, and the arrangement directions of the first radiating branches 11 and the second radiating branches 13 are the same as the extension directions of the first radiating branches 11 and the second radiating branches 13, that is, the first radiating branches 11 and the second radiating branches 13 are substantially arranged in a straight line at intervals.

[0133] Obviously, in some embodiments, the first radiation branch 11 or the second radiation branch 13 may also be a bent strip, and the longest side of the first radiation branch 11 or the second radiation branch 13 may also be the longest bent side of the first radiation branch 11 or the second radiation branch 13. The first radiation branch 11 or the second radiation branch 13 may also be arranged in other ways, as long as the first open-circuit end 11a of the first radiation branch 11 and the third open-circuit end 13a of the second radiation branch 13 are adjacent and spaced apart, so that the first radiation branch 11 and the second radiation branch 13 can be coupled.

[0134] In some embodiments, Figure 5 As shown, the antenna assembly 1 also includes a first matching circuit 17, which is connected between the first feed source 15 and the first feeding point F1. The first branch part Z1 of the first radiation branch 11 operates in a quarter-wavelength resonance mode under the excitation of the first feed source 15 and the cooperation of the first matching circuit 17 to support WiFi 2.4G frequency band and B41 frequency band.

[0135] That is, in some embodiments, the equivalent electrical length of the first branch portion Z1 of the first radiation branch 11 may be the equivalent electrical length with the cooperation of the first matching circuit 17. For example, with the cooperation of the first matching circuit 17, it may be equivalent to one quarter of the wavelength corresponding to 2.6 GHz, and may resonate at 2.6 GHz, thereby simultaneously covering the WiFi 2.4G frequency band and the B41 frequency band.

[0136] The first matching circuit 17 may include a capacitor and / or an inductor to achieve corresponding matching adjustment.

[0137] In some embodiments, the first matching circuit 17 may also include a switch, which is connected in series with the capacitor and / or inductor. When the antenna assembly 1 operates in other groups of frequency band combinations, the switch in the first matching unit can be disconnected without affecting other groups of frequency band combinations.

[0138] In some embodiments, when the antenna assembly 1 operates in a frequency band in the second group of frequency band combinations, the second matching adjustment unit 14 is also used to implement bandpass filtering of the N78 frequency band. Thus, at this time, the second matching adjustment unit 14 is short-circuited relative to the N78 frequency band, that is, the electromagnetic wave signal of the N78 frequency band can be conducted to the ground GND through the second matching point P2, thereby destroying the higher-order modes of the N78 frequency band and avoiding interference.

[0139] Among them, in some embodiments, the capacitance value of the capacitor included in the LC series circuit M3 of the currently enabled bandpass filter branch 141 can be 1.2pF capacitance, and the inductance value of the inductor included can be 3.9nH, so that it can resonate in the N78 frequency band to achieve bandpass filtering in the N78 frequency band, and allow electromagnetic wave signals in the N78 frequency band to pass through, thereby realizing an equivalent short circuit in the N78 frequency band.

[0140] In some embodiments, the third frequency band combination includes B40 frequency band, B41 frequency band, WiFi 2.4G frequency band and N78 / N79 frequency band. When the antenna assembly 1 operates in the frequency band in the third frequency band combination, the second branch portion Z2 operates in a quarter-wavelength resonant mode under the excitation of the first feed source 15 and the matching adjustment of the first matching adjustment unit 12 to support the B40 frequency band and WiFi. The first radiation branch 11 operates in a half-wavelength balanced mode under the excitation of the first feed source 15 and the matching adjustment of the first matching adjustment unit 12 to support the reception and transmission of electromagnetic wave signals in the B41 frequency band. When the second matching adjustment unit 14 realizes the bandpass filtering of a frequency band other than the N78 frequency band and the N79 frequency band, the second radiation branch 13 operates in a four-five-wavelength high-order mode under the coupling excitation of the first feed source 15 to support the reception and transmission of electromagnetic wave signals in the N78 frequency band. When the second matching adjustment unit 14 realizes the bandpass filtering of the N79 frequency band, the third branch part Z3 between the second matching point P2 of the second radiation branch 13 and the third open end 13a operates in a quarter-wavelength resonant mode under the coupling excitation of the first feed source 15 to support the reception and transmission of electromagnetic wave signals in the N79 frequency band.

[0141] Among them, the N78 / N79 frequency band refers to the N78 frequency band or the N79 frequency band, that is, in the third group of frequency band combinations, the B40 frequency band, the B41 frequency band, and the WiFi 2.4G frequency band remain always present, and can be switched between the N78 frequency band and the N79 frequency band.

[0142] Thus, in some embodiments, the second branch portion Z2 operates in a quarter-wavelength resonant mode under the excitation of the first feed source 15 and the matching adjustment of the first matching adjustment unit 12, and can simultaneously support the reception and transmission of electromagnetic wave signals in the B40 frequency band and the WiFi 2.4G frequency band, while the first radiation branch 11 operates in a half-wavelength balanced mode under the excitation of the first feed source 15 and the matching adjustment of the first matching adjustment unit 12, and supports the reception and transmission of electromagnetic wave signals in the B41 frequency band. In addition, when the second matching adjustment unit 14 implements bandpass filtering of a frequency band other than the N78 frequency band and the N79 frequency band, the second matching adjustment unit 14 is equivalent to an open circuit relative to the N78 frequency band. Therefore, the electromagnetic wave signal of the N78 frequency band will not be grounded through the second matching point P2, and since the frequency band supported by the second radiation branch 13 is a low-frequency band, which is lower than the N78 frequency band, the entire second radiation branch 13 can be coupled to excite the higher-order mode of the N78 frequency band, and can support the N78 frequency band. However, since the frequency range of the N79 frequency band is very high (4.4GHz~5GHz), high-order modes will not be excited at this time. When the second matching adjustment unit 14 realizes the bandpass filtering of the N79 frequency band, the second matching point P2 of the second radiation branch 13 is equivalent to a short circuit to the ground for the N79 frequency band. Therefore, the third branch part Z3 between the second matching point and the third open end 13a operates in a quarter-wavelength resonant mode under the coupling excitation of the first feed source 15 and supports the transmission and reception of electromagnetic wave signals in the N79 frequency band. That is, in some embodiments, the equivalent electrical length of the third branch portion Z3 between the second matching point P2 of the second radiation branch 13 and the third open end 13a is one quarter of the wavelength corresponding to the N79 frequency band, so that when the second matching adjustment unit 14 implements the bandpass filtering of the N79 frequency band, the second matching point P2 of the second radiation branch 13 is equivalent to being short-circuited to the ground for the N79 frequency band, and the third branch portion Z3 can resonate in a quarter-wavelength resonance mode to support the reception and transmission of electromagnetic wave signals in the N79 frequency band. In some embodiments, when the second matching adjustment unit 14 implements the bandpass filtering of the N79 frequency band, it can also simultaneously implement the bandpass filtering of the N78 frequency band, thereby suppressing the high-order mode of the N78 frequency band, so that at this time, only the reception and transmission of electromagnetic wave signals in the N79 frequency band can be supported.

[0143] Among them, since the length of the third branch portion Z3 between the second matching point and the third open end 13a of the second radiation branch 13 is relatively short, the equivalent electrical length of the third branch portion Z3 is close to the electrical length required for resonance of the N79 frequency band. Therefore, when the second matching point P2 of the second radiation branch 13 is equivalent to being short-circuited to the ground for the N79 frequency band, the third branch portion Z3 between the second matching point and the third open end 13a operates in a quarter-wavelength resonance mode under the coupling excitation of the first feed source 15 and supports the reception and transmission of electromagnetic wave signals in the N79 frequency band.

[0144] In some embodiments, since the B40 frequency band and the WiFi 2.4G frequency band are also relatively close, that is, the frequency range of the B40 frequency band and the WiFi2.4G frequency band is approximately 2.3GHz to 2.5GHz, the second branch portion Z2 operates in a quarter-wavelength resonant mode under the excitation of the first feed source 15 and the matching adjustment of the first matching adjustment unit 12 and can simultaneously support the B40 frequency band and the WiFi 2.4G frequency band.

[0145] In some embodiments, the second branch portion Z2 operates in a quarter-wavelength resonance mode under the excitation of the first feed source 15 and the matching adjustment of the first matching adjustment unit 12, and can simultaneously support the reception and transmission of electromagnetic wave signals in the B40 band and the WiFi 2.4G band. This may refer to that the equivalent electrical length of the second branch portion Z2 under the matching adjustment of the first matching adjustment unit 12 is approximately one-quarter of the wavelength corresponding to the frequency range that can cover the WiFi 2.4G band and the B40 band. For example, the equivalent electrical length of the second branch portion Z2 under the matching adjustment of the first matching adjustment unit 12 may be one-quarter of the wavelength corresponding to 2.4 GHz, and may resonate at 2.4 GHz, thereby simultaneously covering the WiFi 2.4G band and the B40 band, and supporting the reception and transmission of electromagnetic wave signals in the B40 band and the WiFi 2.4G band.

[0146] In some embodiments, when the antenna assembly 1 operates in a frequency band in the third group of frequency band combinations, the matching element M1 included in the matching enabled in the first matching adjustment unit 12 may be an inductor, and the inductance value of the inductor may be 6.8nH, so that the equivalent electrical length of the second branch portion Z2 under the matching adjustment of the first matching adjustment unit 12 is approximately one-fourth of the wavelength corresponding to the frequency range that can cover the WiFi 2.4G band and the B40 band.

[0147] In some embodiments, the first radiation branch 11 operates in a half-wavelength balanced mode under the excitation of the first feed source 15 and the matching adjustment of the first matching adjustment unit 12 to support the reception and transmission of electromagnetic wave signals in the B41 frequency band. It may also mean that the equivalent electrical length of the first radiation branch 11 under the matching adjustment of the first matching adjustment unit 12 is approximately half the wavelength of the B41 frequency band, so that it can operate in a half-wavelength balanced mode under the excitation of the first feed source 15 to support the reception and transmission of electromagnetic wave signals in the B41 frequency band.

[0148] In some embodiments, when the antenna assembly 1 operates in a frequency band in the third group of frequency band combinations, the capacitance value of the capacitor included in the LC series circuit M3 of the currently enabled bandpass filter branch 141 may be 1.2pF capacitance, and the inductance value of the included inductor may be 2.2nH.

[0149] See also Figure 6 , is another further structural schematic diagram of the antenna assembly 1 in some embodiments of the present application.

[0150] In some embodiments, the antenna assembly 1 further includes a capacitor unit 18 located at a side of the second matching point P2 of the second radiation branch 13 away from the third open end 13 a .

[0151] in, Figure 6 Can be in Figure 5 The capacitor unit 18 is further added on the basis of the structure for the sake of schematic diagram.

[0152] In some embodiments, Figure 6 As shown, when the second radiation branch 13 further includes the second feeding point F2, the capacitor unit 18 is also located on the side of the second feeding point F2 of the second radiation branch 13 that is away from the third open end 13a. That is, the capacitor unit 18 is located between the second matching point P2 and one of the second feeding points that is closer to the first ground end 13b and the first ground end 13b.

[0153] Among them, when the WiFi 2.4G and the N78 frequency bands in a certain group of frequency band combinations are realized by coupling to excite the second radiation branch 13 and working in a high-order mode, as mentioned above, since the second radiation branch 13 itself usually supports a lower frequency band, such as a low-frequency band, the length of the second radiation branch 13 is longer, and the high-order mode current loss is larger in the longer branch. By adding the capacitor unit 18, the high-order mode current can be regulated to a region closer to the third open-circuit end 13a of the second radiation branch 13, thereby effectively reducing the high-order mode current loss. When the second radiation branch 13 is coupled to excite the higher-order modes of the WiFi 2.4G and N78 frequency bands, the radiation performance of the WiFi2.4G and N78 frequency bands can be effectively improved.

[0154] In some embodiments, Figure 6 As shown, the capacitor unit 18 is a distributed capacitor structure.

[0155] That is, in some embodiments, the capacitor unit 18 may be a coupling capacitor structure formed by the extension structure J1 and the ground GND when the distance between the extension structure J1 extending from the corresponding area of ​​the second radiation branch 13 toward the ground GND is less than a preset distance. When the antenna assembly 1 is applied to an electronic device, the ground GND may refer to a ground plane in the electronic device.

[0156] Thus, the capacitor unit 18 is formed by the distributed capacitor structure, without the need to add a conventional lumped capacitor device, and also without the conductive spring connecting the conventional lumped capacitor device with the second radiation branch 13, thereby saving costs. Moreover, when it is not convenient to set a conductive spring in some narrow spaces, the capacitor unit 18 can still be effectively formed.

[0157] In some embodiments, the preset distance may be 1 mm (millimeter) or 0.5 mm, which is a distance that can form a coupling capacitor structure.

[0158] Obviously, in some embodiments, when there is no narrow space where it is not convenient to set the conductive spring, the capacitor unit 18 can also be a lumped capacitor device.

[0159] In some embodiments, the distance between the capacitor unit 18 and the third open end 13a of the second radiation branch 13 may be any suitable distance, for example, it may be less than or equal to 1 / 2 of the second radiation branch 13. In some embodiments, the distance between the capacitor unit 18 and the third open end 13a of the second radiation branch 13 may be half of the wavelength corresponding to the N78 frequency band, so that the high-order mode current can be more effectively regulated to a region closer to the third open end 13a of the second radiation branch 13.

[0160] In some embodiments, Figure 6 As shown, the capacitor unit 18 may include a plurality of capacitor units 18, and the plurality of capacitor units 18 are distributed at intervals in the corresponding distribution area of ​​the second radiation branch node 13, that is, the extension structure J1 may be a plurality of extension structures J1 extending from corresponding positions toward the ground GND to form a corresponding coupling capacitor structure with the ground GND, that is, the capacitor unit 18. Wherein, when the capacitor unit 18 includes a plurality of capacitor units, the distance between the capacitor unit 18 and the third open end 13a of the second radiation branch node 13 may be the distance between the capacitor unit 18 closest to the third open end 13a and the third open end 13a of the second radiation branch node 13.

[0161] Since the capacitor unit 18 is equivalent to an open circuit in a relatively low frequency band, such as a low frequency band, it does not affect the second radiation branch 13 itself working in a preset frequency band such as a relatively low frequency band.

[0162] in, Figure 6 Only the capacitor unit 18 is further illustrated, and other structures may refer to the relevant introduction of any of the aforementioned embodiments.

[0163] See also Figure 7 , is another further structural schematic diagram of the antenna assembly 1 in some embodiments of the present application.

[0164] like Figure 7 As shown, in some embodiments, the capacitor unit 18 is a distributed capacitor, and there is one capacitor unit 18 , and the one capacitor unit 18 is a whole extension structure J1 extending toward the ground GND in the corresponding distribution area of ​​the second radiation branch 13 .

[0165] The corresponding distribution area of ​​the second radiation branch 13 may be substantially the same as the corresponding distribution area of ​​the aforementioned plurality of capacitor units 18. Thus, in some embodiments, by forming a capacitor unit 18 of a larger size, the high-order mode current can be effectively regulated to a region closer to the third open-circuit end 13a of the second radiation branch 13, and the manufacturing process can be simplified.

[0166] in, Figure 7 and Figure 6 The only difference is the structure of the capacitor unit 18. For other structures, please refer to the relevant introduction of any of the above embodiments.

[0167] In some embodiments, as mentioned above, the preset frequency band indicated by the second radiation branch 13 under the stimulation of the second feed source 16 is a low frequency band. In some embodiments, the second matching adjustment unit 14 is further used to match and tune the preset frequency band.

[0168] That is, in some embodiments, the second radiation branch 13 supports the low frequency band under the excitation of the second feed source 16, and the equivalent electrical length of the second radiation branch 13 under the matching of the second matching adjustment unit 14 meets the requirement of resonance in the low frequency band. For example, the second radiation branch 13 includes a third open-circuit end 13a and a first grounded end 13b, that is, one end is open-circuited and the other end is grounded to form an IFA antenna. Therefore, the second radiation branch 13 works in a quarter-wavelength resonance mode under the excitation of the second feed source 16. Therefore, in some embodiments, the equivalent electrical length of the second radiation branch 13 under the matching of the second matching adjustment unit 14 can be one quarter of the low frequency band.

[0169] In some embodiments, the low-frequency band includes multiple sub-bands, and the equivalent electrical length of the second radiation branch 13 under the matching tuning of the second matching adjustment unit 14 can be adjusted to be consistent with the resonance requirement of any sub-band of the low-frequency band, thereby supporting the transmission and reception of electromagnetic wave signals of any sub-band of the low-frequency band.

[0170] That is, in some embodiments, the second matching adjustment unit 14 may include an adjustable matching circuit for the low-frequency band, and the presented matching parameter value can be adjusted, so that the equivalent electrical length of the second radiation branch 13 can be changed with the cooperation of the second matching adjustment unit 14, so as to meet the resonance requirements of different sub-bands of the low-frequency band and support the reception and transmission of electromagnetic wave signals in different sub-bands of the low-frequency band.

[0171] See also Figure 8 , is another structural schematic diagram of the second matching adjustment unit 14 in some embodiments of the present application.

[0172] Among them, Figure 8 As shown, in some embodiments, in addition to including a plurality of bandpass filter branches 141 connected in parallel between the second matching point P2 and the ground GND, the second matching adjustment unit 14 also includes a plurality of matching branches 142, and the plurality of matching branches 142 are also connected in parallel between the second matching point P2 and the ground GND.

[0173] Among them, the multiple matching branches 142 can be in an enabled state or a disabled state. According to the different matching branches 142 in the enabled state, the matching parameter values ​​presented by the second matching adjustment unit 14 are different, so that the equivalent electrical length of the second radiation branch 13 under the cooperation of the second matching adjustment unit 14 satisfies the resonance in different sub-bands of the low-frequency band.

[0174] In some embodiments, the multiple sub-bands included in the low frequency band include B28 band (703-803 MHz), B20 band (792-862 MHz), B5 band (824-896 MHz) and B8 band (880-960 MHz), such as Figure 8 As shown, the plurality of matching branches 142 may include four matching branches 142. Different sub-bands in the low frequency band may be supported by switching different matching branches 142 to be in an enabled state.

[0175] Obviously, in some embodiments, the multiple matching branches 142 may also include two or three matching branches 142, and four different enabling combination states of the matching branches 142 can be achieved by enabling different matching branches 142 or enabling different numbers of matching branches 142, which correspond to the four sub-bands included in the low-frequency band respectively, so that the equivalent electrical length of the second radiation branch 13 with the cooperation of the second matching adjustment unit 14 meets the requirements of resonance in different sub-bands of the low-frequency band.

[0176] In some embodiments, Figure 8 As shown, the second matching adjustment unit 14 may further include a third switch module 143, each matching branch 142 also includes a connected matching element M5, the third switch module 143 includes a plurality of matching switches M6, and the plurality of matching switches M6 correspond one-to-one to the plurality of matching branches 142, wherein the matching parameter values ​​of the matching elements M5 in different matching branches 142 are different, when the matching switch M6 corresponding to a certain matching branch 142 is turned on, the matching branch 142 is in an enabled state, and the matching element M5 is connected between the second matching point P2 and the ground GND, and when the matching switch M6 corresponding to the matching branch 142 is turned off, the branch where the matching branch 142 is located is turned off, and the matching branch 142 is in a disabled state.

[0177] Among them, the third switch module 143 can be located between the second matching point P2 and the multiple matching branches 142 or between the multiple matching branches 142 and the ground GND, so that the multiple matching branches 142 are connected in parallel between the second matching point P2 and the ground GND, which specifically refers to the multiple matching branches 142 being connected in parallel between the third switch module 143 and the ground GND, or being connected in parallel between the second matching point P2 and the third switch module 143.

[0178] in, Figure 8 In the embodiment, the third switch module 143 is connected between the plurality of matching branches 142 and the ground GND, and the plurality of matching branches 121 are connected in parallel between the second matching point P2 and the third switch module 143 as an example.

[0179] The matching element M5 may include a capacitor and / or an inductor, and the matching parameter value may include a capacitance value and / or an inductance value.

[0180] The different matching parameter values ​​of the matching elements M1 in different matching branches 142 include different types and / or different parameter values ​​of the matching elements M1 in different matching branches 142 .

[0181] For example, the matching element M5 of a certain matching branch 142 includes a capacitor, the matching element M5 of another matching branch 142 includes an inductor, the matching element M5 of another matching branch 142 also includes a capacitor, but the capacitance value is different from that of the capacitors included in other matching branches, etc. In some embodiments, the matching element M5 may include a single element or multiple elements, for example, a single capacitor or inductor, or may include multiple capacitors and / or inductors connected in series or in parallel.

[0182] in, Figure 8 In the figure, four matching branches 142 are taken as an example, and the matching elements M5 included in the four matching branches 142 are capacitors, inductors, capacitors, and capacitors respectively.

[0183] in, Figure 8The second matching adjustment unit 14 shown is also only an exemplary structure. In some embodiments, each matching branch 142 of the second matching adjustment unit 14 may only include a matching element M5. The second matching adjustment unit 14 may also include another single-pole multi-throw switch, wherein one end of the matching element M5 in the multiple matching branches 142 is connected to the second matching point P2, and the single-pole multi-throw switch is used to selectively establish a connection between the other end of the matching element M5 in one of the matching branches 142 and the ground GND, so that the matching element M5 in one of the matching branches 142 is electrically connected between the second matching point P2 and the ground GND. The single-pole multi-throw switch may include a fixed end and a throwing end, wherein the fixed end is fixedly connected to the ground GND, and the throwing end may be selectively connected to the other end of the matching element M5 in one of the matching branches 142.

[0184] In some embodiments, the beam directions of the WiFi frequency bands of at least some of the multiple frequency band combinations are different.

[0185] That is, in some embodiments, the frequency bands of the multiple groups of frequency band combinations all include WiFi frequency bands, and the beam directions of the WiFi frequency bands of at least some groups of frequency band combinations are different from the beam directions of the WiFi frequency bands of other groups of frequency band combinations. Therefore, the supported / working frequency band combination can be switched as needed to change the beam direction of the WiFi frequency band to meet the needs of different beam directions in different scenarios.

[0186] In some embodiments, since the WiFi bands of at least some groups of frequency band combinations have different working modes or support different branches, the beam directions of the WiFi bands of at least some groups of frequency band combinations in the multiple groups of frequency band combinations may be different.

[0187] For example, as mentioned above, in the first group of frequency band combinations, the WiFi frequency band is supported by the second radiation branch 13 operating in a high-order mode under the coupling excitation of the first feed source 15, while in the second group of frequency band combinations, the first branch part Z1 of the first radiation branch 11 operates in a quarter-wavelength resonant mode under the excitation of the first feed source 15 to support the WiFi 2.4G frequency band. Therefore, different working modes result in different beam directions.

[0188] In some embodiments, the electrical length of the first radiation branch 11 can be about 1 / 2 of the first target wavelength corresponding to the center frequency of 2.5 GHz, and specifically can be 0.25 times the first target wavelength to 0.75 times the first target wavelength. When the preset frequency band supported by the second radiation branch is a low frequency band, the electrical length of the second radiation branch 13 can be about 1 / 4 of the second target wavelength corresponding to the center frequency of 0.8 GHz, and specifically can be 0.1 times the second target wavelength to 0.5 times the second target wavelength. In this application, the capacitance and inductance values ​​included in the first matching adjustment unit 12 and the second matching adjustment unit 14 can also float within a certain range, for example, within a range of 300%.

[0189] Therefore, the antenna assembly 1 of the present application, through the above structure, the first radiating branch 11, under the excitation of the first feed source 15, can support multiple frequency band combinations through the matching adjustment of the first matching adjustment unit 12 and / or the second matching adjustment unit 14, or further cooperate with the second radiating branch 13, so as to effectively meet the current demand for multiple frequency bands and occupy less space. Moreover, the multiple frequency band combinations all include WiFi bands, which can ensure that the WiFi bands are always present, and can maintain the continuity of WiFi communication and improve the quality of WiFi communication. In addition, the beam direction of at least the WiFi band can be changed as needed, meeting the demand for different beam directions in different scenarios.

[0190] See also Fig. 9 , is a further structural schematic diagram of the antenna assembly 1 in some embodiments of the present application.

[0191] In some embodiments, Fig. 9 As shown, the antenna assembly 1 may further include a second matching circuit 19, and the second matching circuit 19 is connected between the second feed source 16 and the second feeding point F2. In some embodiments, the equivalent electrical length of the second radiation branch 13 may be an equivalent electrical length under the cooperation of the second matching circuit 19, for example, it may be equivalent to a quarter of the wavelength corresponding to the low frequency band under the cooperation of the second matching circuit 19, and may resonate in the low frequency band, thereby simultaneously covering the low frequency band.

[0192] In some embodiments, the second matching circuit 19 may also include multiple matching branches, and the multiple matching branches may be in an enabled state or a disabled state. Depending on the different matching branches in the enabled state, the matching parameter values ​​presented by the second matching circuit 19 are different, so that the equivalent electrical length of the second radiation branch 13 in the cooperation of the second matching circuit 19 satisfies the resonance in different sub-bands of the low-frequency band.

[0193] That is, in some embodiments, the second radiation branch 13 may be matched and adjusted by the second matching circuit 19 connected between the second feed source 16 and the second feeding point F2, so that the equivalent electrical length of the second radiation branch 13 under the cooperation of the second matching circuit 19 satisfies the resonance in different sub-bands of the low-frequency band. In this case, the aforementioned second matching adjustment unit 14 may not include the matching branches 142.

[0194] Obviously, in some embodiments, when the second matching circuit 19 connected between the second feed source 16 and the second feeding point F2 is used to match and adjust the second radiation branch 13, the second matching adjustment unit 14 is further used to match and adjust the second radiation branch 13. That is, the equivalent electrical length of the second radiation branch 13 under the cooperation of the second matching circuit 19 and the second matching adjustment unit 14 can satisfy the resonance in different sub-bands of the low-frequency band.

[0195] See also Fig.10 , is a structural block diagram of an electronic device 100 in some embodiments of the present application. Fig.10 As shown, the electronic device 100 may include the antenna assembly 1 described in any of the aforementioned embodiments.

[0196] Thus, the electronic device 100 is equipped with the antenna assembly 1 in any of the above-mentioned embodiments, and the first radiation branch 11, under the excitation of the first feed source 15, can support multiple frequency band combinations through the matching adjustment of the first matching adjustment unit 12 and / or the second matching adjustment unit 14, or further cooperate with the second radiation branch 13, so as to effectively meet the current demand for multiple frequency bands and occupy less space. Moreover, the multiple frequency band combinations all include WiFi frequency bands, which can ensure that the WiFi frequency band is always present, and can maintain the continuity of WiFi communication and improve the quality of WiFi communication.

[0197] In addition, as mentioned above, in some embodiments, the beam directions of the WiFi bands of at least some of the multiple frequency band combinations are different. That is, in some embodiments, the frequency bands of the multiple frequency band combinations all include WiFi bands, and the beam directions of the WiFi bands of at least some of the frequency band combinations are different from the beam directions of the WiFi bands of other frequency band combinations, so that the supported / operating frequency band combination can be switched as needed, and the beam direction of the WiFi band can be changed to meet the needs of different beam directions in different scenarios.

[0198] In some embodiments, since the working modes of the WiFi bands of at least some groups of frequency band combinations are different or the branches they support are different, the beam directions of the WiFi bands of at least some groups of frequency band combinations in the multiple groups of frequency band combinations may be different.

[0199] Therefore, the electronic device 100 of the present application can also change the beam direction of the WiFi frequency band as needed, meeting the needs for different beam directions in different scenarios.

[0200] See also Fig.11 , is a schematic plan view of an electronic device 100 in some embodiments of the present application. Fig.11 The structure of the antenna assembly 1 is shown in a top view from the back side of the electronic device 100, that is, from the side away from the display screen. Figure 1-Figure 2 The antenna assembly 1 shown in the above figures may also be the antenna assembly 1 viewed from the back side of the electronic device 100 .

[0201] Among them, Fig.11 As shown, the electronic device 100 further includes a frame B1 , and the first radiation branch nodes 11 and the second radiation branch nodes 13 are arranged on the frame B1 of the electronic device 100 .

[0202] That is, in some embodiments, the first radiation branch node 11 and the second radiation branch node 13 may be specifically disposed at a border B1 of the electronic device 100 .

[0203] Among them, Fig.11 As shown, the first radiation branch 11 and the second radiation branch 13 are separated by a gap X1.

[0204] In some embodiments, the frame B1 of the electronic device 100 is a metal frame, and the first radiation branch 11 and the second radiation branch 13 are metal frame segments formed by opening the gap X1 in the metal frame of the electronic device 100 .

[0205] In some other embodiments, the frame B1 of the electronic device 100 is a non-metal frame, and the first radiation branch nodes 11 and the second radiation branch nodes 13 are metal segments arranged in the frame of the electronic device 100 .

[0206] That is, in some other embodiments, the frame B1 of the electronic device 100 may also be a non-metal frame with low conductivity such as plastic, ceramic, etc. The first radiation branch 11 and the second radiation branch 13 are metal segments arranged in the frame B1 of the electronic device 100. The first radiation branch 11 and the second radiation branch 13 may be embedded in the frame of the electronic device 100, or arranged on the inner side of the frame of the electronic device 100.

[0207] Among them, the electronic device 100 of the present application, by being equipped with the antenna assembly 1 in any of the aforementioned embodiments, can realize the antenna solution design of a device (such as a mobile phone) covering the entire frequency band within the Sub 6G range. When the first radiation branch 11 and the second radiation branch 13 are arranged at the border B1 of the electronic device 100, the border size required to complete the same design of all frequency bands is shorter, which can further improve the utilization rate of the mobile phone border area and provide higher freedom support for antenna design in complex environments.

[0208] like Fig.11 As shown, the frame B1 includes two opposite long frames B11 and two opposite short frames B12, wherein the first radiation branch nodes 11 and the second radiation branch nodes 13 can be arranged in one of the long frames B11.

[0209] in, Fig.11 The electronic device 100 includes Figure 6 The antenna assembly 1 shown is used as an example for illustration. Obviously, the electronic device 100 may include the antenna assembly 1 in any of the above embodiments. Fig.11 Part of the reference numerals of the antenna assembly 1 are omitted. For details, see Figure 6 .

[0210] In some embodiments, the largest surface of the first radiation branch 11 and the second radiation branch 13 is a surface parallel to the frame surface of the frame B1 , wherein the frame surface of the frame B1 is substantially perpendicular to the plane of the display screen of the electronic device 100 .

[0211] Among them, Fig.11 The electronic device 100 includes a top D11, a bottom D12, and two side edges D13 and D14. The two long frames B11 are frames located at the two side edges D13 and D14 of the electronic device 100, respectively, and the two short frames B12 are frames located at the top D11 and the bottom D12 of the electronic device 100, respectively.

[0212] In some embodiments, the first radiation branch 11 and the second radiation branch 13 are both in the shape of straight strips. Wherein, the first radiation branch 11 and the second radiation branch 13 are both arranged at one side end of the electronic device 100, for example, Fig.11 As shown in FIG. 1 , the first radiation branch 11 and the second radiation branch 13 are both arranged at the side end D13 of the electronic device 100 .

[0213] Therefore, when the second radiation branch 13 supports a low frequency band and requires a longer size, the longer length of the side end of the electronic device 100 can better meet the setting requirements of the second radiation branch 13.

[0214] in, Fig.11 This is just an example. The first radiation branch 11 and the second radiation branch 13 may also be in other shapes and may be arranged at other positions of the electronic device 100. For example, in some embodiments, the first radiation branch 11 may be bent, and the first radiation branch 11 includes two sub-branches connected at an angle, one sub-branch of the first radiation branch 11 is arranged at the top D11 of the electronic device 100, and the other sub-branch of the first radiation branch 11 is arranged at a side end of the electronic device 100, such as the side end D13, and the second radiation branch 13 is arranged on the side end D13 and close to the top D11. That is, in some embodiments, by setting the first radiation branch 11 as two sub-branches connected at an angle, the top angle position can be utilized to avoid being held by the user, thereby improving the low-frequency radiation performance.

[0215] Among them, the directional terms such as "top" and "bottom" used in the embodiments of the present application to describe the electronic device 100 are mainly explained based on the orientation of the electronic device 100 when the user holds it in hand. The position toward the top side of the electronic device 100 is the "top", and the position toward the bottom side of the electronic device 100 is the "bottom". It does not indicate or imply 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 orientation of the electronic device 100 in actual application scenarios. In some embodiments, the bottom end D12 of the electronic device 100 is the end where the headphone jack and the USB port are provided, and the top end D11 of the electronic device 100 is the other end opposite to the end where the headphone jack and the USB port are provided, and may also refer to the end where a camera, a receiver, etc. are provided.

[0216] like Fig.11 As shown, in some embodiments, the electronic device further includes a ground plate 101 , and the aforementioned ground GND may be the ground plate 101 .

[0217] In some embodiments, the aforementioned components are grounded. For example, the aforementioned grounding terminal may be connected to the grounding plate 101 to achieve grounding.

[0218] In some embodiments, when the antenna assembly 1 also includes the capacitor unit 18, and the capacitor unit 18 is a distributed capacitor structure, the capacitor unit 18 can be a coupling capacitor structure formed by the extension structure J1 and the ground plate 101 when the distance between the extension structure J1 extending from the corresponding area of ​​the second radiation branch 13 toward one side of the ground plate 101 and the ground plate 101 is less than a preset distance.

[0219] For example, Figure 6 As shown, the capacitor unit 18 may include a plurality of capacitor units 18, which are distributed at intervals in the corresponding distribution area of ​​the second radiation branch node 13, that is, the extension structure J1 extending from the second radiation branch node 13 may be a plurality of extension structures J1, which extend from corresponding positions toward the ground plane 101 and form corresponding coupling capacitor structures with the ground plane 101, that is, the capacitor unit 18. The arrangement direction of the plurality of extension structures J1 is substantially the same as the extension direction of the second radiation branch node 13, wherein the second radiation branch node 13 may be adjacent to a corresponding edge of the ground plane 101 and arranged at intervals, and the arrangement direction of the plurality of extension structures J1, that is, the extension direction of the second radiation branch node 13, may be substantially parallel to the corresponding edge of the ground plane 101, and the plurality of extension structures J1 of the second radiation branch node 13 and the corresponding edge of the ground plane 101 form a plurality of coupling capacitor structures, that is, a plurality of capacitor units 18, to form the distributed capacitor structure.

[0220] For example, Figure 7 As shown, there is one capacitor unit 18, and the one capacitor unit 18 is an entire extension structure J1 extending from the corresponding distribution area of ​​the second radiation branch 13 toward the corresponding edge of the ground plate 101. The extension structure J1 and the ground plate 101 form a relatively large coupling capacitor structure to form the distributed capacitor structure.

[0221] like Fig.11 As shown, the electronic device 100 further includes a mainboard 102, wherein the first feed source 15, the first matching adjustment unit 12, the second matching adjustment unit 14, etc. may be arranged on the mainboard 102. In some embodiments, the grounding plate 101 may be at least a partial area of ​​a grounding layer on the mainboard 102.

[0222] Among them, Fig.11As shown, the electronic device 100 further includes a middle frame 103, which is used to support structures such as a display screen, and the middle frame 103 is used as the ground of the entire device. The grounding layer on the motherboard 102 is connected to the middle frame 103 to provide a ground potential. In some embodiments, the grounding plate 101 may be at least a portion of the middle frame 103, and the aforementioned ground GND may also be at least a portion of the middle frame 103. Fig.11 In the figure, the ground plate 101 is taken as the middle frame 103 as an example for illustration.

[0223] The frame B1 of the electronic device 100 may also be provided with other antenna radiation branches, which are spaced apart by gaps X1. Since they are not related to the improvement of the present application, these other antenna radiation branches are not illustrated.

[0224] See also Fig.12 , is a schematic diagram of a total system efficiency curve of the antenna assembly 1 of the electronic device 100 of the present application.

[0225] Fig.12 Can be Fig.11 The diagram is a schematic diagram of a total system efficiency curve obtained by performing a simulation test when the electronic device 100 operates in the first frequency band combination.

[0226] As mentioned above, the first frequency band combination includes the B3 / B1 frequency band, the WiFi 2.4G frequency band and the N78 frequency band, wherein the B3 frequency band and the B1 frequency band are switchable. Fig.12 In the figure, the total system efficiency curve St1 obtained by simulation test of the antenna component 1 of the electronic device 100 working in the B3 frequency band, WiFi 2.4G frequency band and N78 frequency band in the first frequency band combination and the total system efficiency curve St2 obtained by simulation test of the antenna component 1 of the electronic device 100 working in the B1 frequency band, WiFi 2.4G frequency band and N78 frequency band in the first frequency band combination are specifically illustrated.

[0227] like Fig.12 As shown, the B3 band (resonant frequency is approximately 1.8 GHz), the B1 band (resonant frequency is approximately 2 GHz), the WiFi 2.4G band (resonant frequency is approximately 2.5 GHz) and the N78 band (resonant frequency is approximately 3.5 GHz) are basically at the peak of the system total efficiency curve, and the system total efficiency is relatively high, all greater than -5 dB.

[0228] It can be seen that the antenna assembly 1 of the electronic device 100 of the present application can achieve good radiation performance in each frequency band in the first group of frequency band combinations.

[0229] See also Fig.13, is a schematic diagram of local current distribution when the antenna assembly 1 of the electronic device 100 of the present application operates in the B3 / B1 frequency band in the first frequency band combination.

[0230] in, Fig.13 Can be Fig.11 The local current distribution diagram shown is obtained by simulation test when the electronic device 100 works in the B3 frequency band or the B1 frequency band in the first frequency band combination. Fig.13 Can Fig.11 The illustrated partial schematic diagram is of the electronic device 100 rotated 90° clockwise.

[0231] in, Fig.13 The red area represents the distribution area of ​​the current i11 when the antenna assembly 1 of the electronic device 100 operates in the B3 frequency band or the B1 frequency band in the first frequency band combination. Fig.13 As shown, when the electronic device 100 operates in the B3 frequency band or the B1 frequency band in the first frequency band combination, the current i11 is mainly concentrated on the entire first radiation branch 11. That is, as mentioned above, the first radiation branch 11 operates in a half-wavelength balanced mode under the excitation of the first feed source 15 and the matching adjustment of the first matching adjustment unit 12 to support the transmission and reception of electromagnetic wave signals in the B3 frequency band or the B1 frequency band.

[0232] See also Fig.14 , is a schematic diagram of local current distribution when the antenna assembly 1 of the electronic device 100 of the present application operates in the WiFi 2.4G frequency band in the first frequency band combination.

[0233] in, Fig.14 It can also be Fig.11 The local current distribution diagram shown is obtained by simulation test when the electronic device 100 works in the WiFi 2.4G frequency band in the first frequency band combination. Fig.14 Can also be Fig.11 The illustrated partial schematic diagram is of the electronic device 100 rotated 90° clockwise.

[0234] like Fig.14 As shown, when the antenna assembly 1 of the electronic device 100 operates in the WiFi2.4G frequency band in the first frequency band combination, the current i12 is mainly distributed on the second radiation branch 13. That is, as mentioned above, the second radiation branch 13 operates in the three-quarter wavelength high-order mode under the coupling excitation of the first feed source 15 to support the transmission and reception of electromagnetic wave signals in the WiFi2.4G frequency band.

[0235] See also Fig.15 , is a schematic diagram of local current distribution when the antenna assembly 1 of the electronic device 100 of the present application operates in the N78 frequency band in the first group of frequency band combinations.

[0236] in, Fig.15 It can also be Fig.11 The local current distribution diagram shown is obtained by simulation test when the electronic device 100 works in the N78 frequency band in the first frequency band combination. Fig.15 Can also be Fig.11 The illustrated partial schematic diagram is of the electronic device 100 rotated 90° clockwise.

[0237] like Fig.15 As shown, when the antenna assembly 1 of the electronic device 100 operates in the N78 frequency band in the first frequency band combination, the current i13 is mainly distributed on the second radiation branch 13. That is, as mentioned above, the second radiation branch 13 also operates in the four-five wavelength high-order mode under the coupling excitation of the first feed source 15 to support the transmission and reception of electromagnetic wave signals in the N78 frequency band.

[0238] Among them, Fig.14 and Fig.15 As shown, due to the presence of the capacitor unit 18, that is, the presence of the distributed capacitor structure, the current i12 when the antenna component 1 of the electronic device 100 works in the WiFi 2.4G band in the first group of frequency band combinations and the current i13 when the antenna component 1 of the electronic device 100 works in the N78 band in the first group of frequency band combinations are more concentrated between the capacitor unit 18 and the third open end 13a of the second radiation branch 13. Therefore, as mentioned above, by adding the capacitor unit 18, the high-order mode current can be regulated to a region closer to the third open end 13a of the second radiation branch 13, thereby effectively reducing the high-order mode current loss, and when the second radiation branch 13 is coupled to excite the high-order modes of the WiFi 2.4G and N78 bands, the radiation performance of the WiFi 2.4G and N78 bands can be effectively improved.

[0239] See also Fig.16 , which is a comparative schematic diagram of the radiation efficiency of the antenna assembly 1 of the electronic device 100 of the present application when the capacitor unit 18 is included and when the capacitor unit 18 is not included, working in the N78 frequency band in the first group of frequency band combinations.

[0240] in, Fig.16 Schematically shows the radiation efficiency curve Sr1 of the antenna assembly 1 of the electronic device 100 including the capacitor unit 18 working in the N78 frequency band in the first set of frequency band combinations, and the radiation efficiency curve Sr2 of the antenna assembly 1 not including the capacitor unit 18 working in the N78 frequency band in the first set of frequency band combinations. For example, the radiation efficiency curve Sr1 can be the radiation efficiency curve Sr2 of the antenna assembly 1 including the capacitor unit 18 working in the N78 frequency band in the first set of frequency band combinations. Figure 6The antenna assembly 1 shown in the figure is operated in the N78 frequency band in the first frequency band combination. The radiation efficiency curve Sr2 is obtained by simulation test. The electronic device 100 includes Figure 5 The radiation efficiency curve obtained by simulation test when the antenna assembly 1 is shown working in the N78 frequency band in the first frequency band combination.

[0241] like Fig.16 It can be seen that when the antenna component 1 of the electronic device 100 includes a capacitor unit 18, for example, a distributed capacitor structure, located in the second radiation branch 13, the radiation efficiency in the N78 frequency band (for example, 3.3 GHz) is -1.9 dB, and when it does not include the capacitor unit 18, for example, a distributed capacitor structure, located in the second radiation branch 13, the radiation efficiency in the N78 frequency band (for example, 3.3 GHz) is only -6 dB.

[0242] It can be seen that when the antenna assembly 1 includes a capacitor unit 18 located in the second radiation branch 13, for example, a distributed capacitor structure, the radiation efficiency is significantly improved for the frequency bands achieved by the higher-order modes of the second radiation branch 13.

[0243] See also Fig.17 , is another schematic diagram of a total system efficiency curve of the antenna assembly 1 of the electronic device 100 of the present application.

[0244] Fig.17 Can be Fig.11 The diagram is a schematic diagram of a total system efficiency curve obtained by performing a simulation test when the electronic device 100 operates in the second frequency band combination.

[0245] The second frequency band combination as mentioned above includes the B3 / B1 frequency band, the WiFi 2.4G frequency band and the B41 frequency band, wherein the B3 frequency band and the B1 frequency band are switchable. Fig.17 In the figure, a system total efficiency curve St3 obtained by simulation test of the antenna component 1 of the electronic device 100 operating in the B3 frequency band, the WiFi 2.4G frequency band and the B41 frequency band in the second frequency band combination and a system total efficiency curve St4 obtained by simulation test of the antenna component 1 of the electronic device 100 operating in the B1 frequency band, the WiFi 2.4G frequency band and the B41 frequency band in the second frequency band combination are specifically illustrated.

[0246] like Fig.17As shown, the B3 band (resonant frequency is approximately 1.8 GHz), the B1 band (resonant frequency is approximately 2 GHz), the WiFi 2.4G band (resonant frequency is approximately 2.5 GHz) and the B41 band (resonant frequency is approximately 2.6 GHz) are basically at the peak of the system total efficiency curve, and the system total efficiency is relatively high, all greater than -4 dB.

[0247] It can be seen that the antenna assembly 1 of the electronic device 100 of the present application can achieve good radiation performance in each frequency band in the second group of frequency band combinations.

[0248] See also Fig.18 , is a schematic diagram of local current distribution when the antenna assembly 1 of the electronic device 100 of the present application operates in the B3 / B1 frequency band in the second frequency band combination.

[0249] in, Fig.18 Can be Fig.11 The local current distribution diagram shown is obtained by simulation test when the electronic device 100 works in the B3 frequency band or the B1 frequency band in the first frequency band combination. Fig.18 Can Fig.11 The illustrated partial schematic diagram is of the electronic device 100 rotated 90° clockwise.

[0250] in, Fig.18 The red area in the middle represents the area where the current i21 is distributed when the antenna assembly 1 of the electronic device 100 operates in the B3 frequency band or the B1 frequency band in the first frequency band combination. Fig.18 As shown, when the electronic device 100 operates in the B3 frequency band or the B1 frequency band in the second frequency band combination, the current i21 is mainly concentrated on the second branch portion Z2 of the first radiation branch 11. That is, as mentioned above, the second branch portion Z2 of the first radiation branch 11 operates in a quarter-wavelength resonance mode under the excitation of the first feed source 15 and the matching adjustment of the first matching adjustment unit 12 to support the transmission and reception of electromagnetic wave signals in the B3 frequency band or the B1 frequency band.

[0251] See also Fig.19 , is a schematic diagram of local current distribution when the antenna assembly 1 of the electronic device 100 of the present application operates in the WiFi 2.4G band and the B41 band in the second frequency band combination.

[0252] in, Fig.19 It can also be Fig.11 The local current distribution diagram shown is obtained by simulation test when the electronic device 100 works in the WiFi 2.4G frequency band in the first frequency band combination. Fig.19 Can also be Fig.11The illustrated partial schematic diagram is of the electronic device 100 rotated 90° clockwise.

[0253] like Fig.19 As shown, when the antenna assembly 1 of the electronic device 100 operates in the WiFi 2.4G band and the B41 band in the second frequency band combination, the current i22 is mainly distributed on the first branch portion Z1 of the first radiation branch 11. That is, as mentioned above, the first branch portion Z1 of the first radiation branch 11 operates in a quarter-wavelength resonant mode under the excitation of the first feed source 15 to support the WiFi 2.4G band and the B41 band.

[0254] See also Fig. 20 , is another schematic diagram of a total system efficiency curve of the antenna assembly 1 of the electronic device 100 of the present application.

[0255] Fig. 20 Can be Fig.11 The diagram is a schematic diagram of a total system efficiency curve obtained by simulation testing when the electronic device 100 operates in the third frequency band combination.

[0256] As mentioned above, the third frequency band combination includes B40 frequency band, B41 frequency band, WiFi 2.4G frequency band and N78 / N79 frequency band, wherein N78 frequency band and N79 frequency band are switchable. Fig. 20 In the figure, a system total efficiency curve St5 obtained by simulation test of the antenna component 1 of the electronic device 100 operating in the B40 band, B41 band, WiFi 2.4G band and N7 band in the third frequency band combination and a system total efficiency curve St6 obtained by simulation test of the antenna component 1 of the electronic device 100 operating in the B40 band, B41 band, WiFi 2.4G band and N79 band in the second frequency band combination are specifically illustrated.

[0257] like Fig. 20 As shown, the B40 band (resonant frequency is approximately 2.3 GHz), B41 band (resonant frequency is approximately 2.5 GHz), WiFi 2.4G band (resonant frequency is approximately 2.5 GHz), N78 band (resonant frequency is approximately 3.5 GHz) and N79 band (resonant frequency is approximately 4.6 GHz) are basically at the peak of the system total efficiency curve, and the system total efficiency is relatively high, all greater than -4 dB.

[0258] It can be seen that the antenna assembly 1 of the electronic device 100 of the present application can achieve good radiation performance in each frequency band in the third group of frequency band combinations.

[0259] See also Fig.21, is a schematic diagram of local current distribution when the antenna assembly 1 of the electronic device 100 of the present application operates in the B40 frequency band and the WiFi 2.4G frequency band in the third frequency band combination.

[0260] in, Fig.21 Can be Fig.11 The local current distribution diagram shown is obtained by simulation test when the electronic device 100 works in the B40 frequency band and the WiFi 2.4G frequency in the first frequency band combination. Fig.21 Can also be Fig.11 The illustrated partial schematic diagram is of the electronic device 100 rotated 90° clockwise.

[0261] in, Fig.21 The red area represents the area where the current i31 is distributed when the antenna assembly 1 of the electronic device 100 operates in the B40 frequency band and the WiFi 2.4G frequency in the third frequency band combination. Fig.21 As shown, when the electronic device 100 operates in the B40 frequency band and the WiFi 2.4G frequency in the third frequency band combination, the current i31 is mainly concentrated on the second branch section Z2 of the first radiation branch section 11. That is, as mentioned above, the second branch section Z2 operates in a quarter-wavelength resonance mode under the excitation of the first feed source 15 and the matching adjustment of the first matching adjustment unit 12 to support the transmission and reception of electromagnetic wave signals in the B40 frequency band and the WiFi 2.4G frequency band.

[0262] See also Fig. 22 , is a schematic diagram of local current distribution when the antenna assembly 1 of the electronic device 100 of the present application operates in the B41 frequency band in the third frequency band combination.

[0263] in, Fig. 22 It can also be Fig.11 The local current distribution diagram shown is obtained by simulation test when the electronic device 100 works in the B41 frequency band of the third frequency band combination. Fig. 22 Can also be Fig.11 The illustrated partial schematic diagram is of the electronic device 100 rotated 90° clockwise.

[0264] like Fig. 22 As shown, when the antenna assembly 1 of the electronic device 100 operates in the B41 frequency band in the third frequency band combination, the current i32 is mainly distributed on the entire first radiation branch 11. That is, as mentioned above, the first radiation branch 11 operates in a half-wavelength balanced mode under the excitation of the first feed source 15 and the matching adjustment of the first matching adjustment unit 12 to support the transmission and reception of electromagnetic wave signals in the B41 frequency band.

[0265] See also Fig.23, is a schematic diagram of local current distribution when the antenna assembly 1 of the electronic device 100 of the present application operates in the N78 frequency band in the third frequency band combination.

[0266] in, Fig.23 It can also be Fig.11 The local current distribution diagram shown is obtained by simulation test when the electronic device 100 works in the N78 frequency band in the first frequency band combination. Fig.23 Can also be Fig.11 The illustrated partial schematic diagram is of the electronic device 100 rotated 90° clockwise.

[0267] like Fig.23 As shown, when the antenna assembly 1 of the electronic device 100 operates in the N78 frequency band in the third frequency band combination, the current i33 is mainly distributed on the second radiation branch 13. That is, as mentioned above, the second radiation branch 13 also operates in the four-five wavelength high-order mode under the coupling excitation of the first feed source 15 to support the transmission and reception of the electromagnetic wave signal in the N78 frequency band.

[0268] Among them, Fig.23 As shown, due to the presence of the capacitor unit 18, that is, the presence of the distributed capacitor structure, the current i33 when the antenna assembly 1 of the electronic device 100 operates in the N78 frequency band in the third group of frequency band combinations is more concentrated between the capacitor unit 18 and the third open-circuit end 13a of the second radiation branch 13. Therefore, as mentioned above, by adding the capacitor unit 18, the high-order mode current can be regulated to a region closer to the third open-circuit end 13a of the second radiation branch 13, thereby effectively reducing the high-order mode current loss, and when the second radiation branch 13 is coupled to excite the high-order mode of the N78 frequency band, the radiation performance of the N78 frequency band can be effectively improved.

[0269] See also Fig.24 , is a schematic diagram of local current distribution when the antenna assembly 1 of the electronic device 100 of the present application operates in the N79 frequency band in the third frequency band combination.

[0270] like Fig.24 As shown, when the antenna assembly 1 of the electronic device 100 operates in the N78 frequency band in the third frequency band combination, the current i33 is mainly distributed on the third branch section Z3 between the second matching point P2 of the second radiation branch section 13 and the third open end 13a. That is, as mentioned above, the third branch section Z3 between the second matching point P2 of the second radiation branch section 13 and the third open end 13a operates in a quarter-wavelength resonant mode under the coupling excitation of the first feed source 15 to support the transmission and reception of electromagnetic wave signals in the N79 frequency band.

[0271] See also Fig.25 , is another schematic diagram of a total system efficiency curve of the antenna assembly 1 of the electronic device 100 of the present application.

[0272] Fig.25 Can be Fig.11 The antenna assembly 1 of the electronic device 100 shown is a schematic diagram of a system total efficiency curve obtained by simulation test when the antenna assembly 1 of the electronic device 100 operates in the preset frequency band.

[0273] That is, as mentioned above, the second radiation branch 13 of the antenna assembly 1 can operate in the preset frequency band under the excitation of the second feed source 16, wherein: Fig.25 Taking the preset frequency band as a low frequency band as an example, the system total efficiency curves of each sub-frequency band included in the low frequency band are schematically illustrated.

[0274] Among them, Fig.25 It can be seen that the antenna assembly 1 of the present application has a lowest total system efficiency of -6dB in each sub-band of the low-frequency band. Therefore, the radiation efficiency is relatively high, and good radiation performance in the preset frequency band can be achieved.

[0275] See also Fig.26 , which is the antenna radiation pattern of the antenna assembly 1 of the electronic device 100 of the present application working in the WiFi 2.4G frequency band under different groups of frequency band combinations.

[0276] in, Fig.26 Can be Fig.11 The antenna component 1 of the electronic device 100 shown is an antenna pattern obtained by simulation test when operating in the WiFi 2.4G frequency band under different frequency band combinations.

[0277] in, Fig.26 The figure shows the antenna pattern of the WiFi 2.4G band under two frequency band combinations. For example, Fig.26 (a) is the WiFi 2.4G frequency band antenna directional diagram of the antenna assembly 1 of the electronic device 100 working in the second frequency band combination. Fig.26 (b) is the WiFi 2.4G frequency band antenna pattern of the antenna assembly 1 of the electronic device 100 working in the third frequency band combination.

[0278] As mentioned above, when the antenna assembly 1 of the electronic device 100 operates in the second frequency band combination, the first branch portion Z1 of the first radiation branch 11 operates in a quarter-wavelength resonant mode under the excitation of the first feed source 15 to support the WiFi 2.4G frequency band. Fig.26As shown in (a) in the figure, at this time, the antenna direction of the WiFi 2.4G frequency band, that is, the beam direction A1, is mainly toward the direction from the side end D13 of the electronic device 100 to the top end D11.

[0279] As mentioned above, when the antenna assembly 1 of the electronic device 100 operates in the second frequency band combination, the second branch portion Z2 operates in a quarter-wavelength resonant mode under the excitation of the first feed source 15 and the matching adjustment of the first matching adjustment unit 12 to support the transmission and reception of electromagnetic wave signals in the WiFi 2.4G frequency band. Fig.26 As shown in (b) in FIG. 1 , at this time, the antenna direction of the WiFi 2.4G frequency band, that is, the beam direction A1, is mainly toward the bottom end D12 of the electronic device 100 .

[0280] It can be seen that the beam direction of the WiFi band of at least some group frequency band combinations is different from the beam direction of the WiFi band of other group frequency band combinations. Therefore, the beam direction of the WiFi band can be changed by switching the supported / working frequency band combination as needed to meet the needs of different beam directions in different scenarios.

[0281] Among them, in some embodiments, it is possible to select switching among different groups of frequency band combinations according to the state of the electronic device 100. For example, the state of the electronic device 100 may be the current communication signal quality state of the electronic device 100, and whether to switch to other groups of frequency band combinations is determined according to the communication signal quality state of a group of frequency band combinations in which the electronic device 100 is currently working. For example, when the signal quality of a group of frequency band combinations in which the electronic device 100 is currently working is lower than the preset signal quality, it can be switched to other groups of frequency band combinations, and when it is determined that the signal quality of other groups of frequency band combinations is better, it can stay working in other groups of frequency band combinations.

[0282] In some embodiments, the state of the electronic device 100 may include a placement state, etc. According to the placement state of the electronic device 100 and the proximity state of a human body, the switching among different groups of frequency band combinations may be selected to achieve better signal quality, or as mentioned above, the beam direction of the WiFi 2.4G frequency band may be changed.

[0283] In some embodiments, as described above, the plurality of frequency band combinations may be switched at least according to the different matching branches 121 enabled in the first matching adjustment unit 12 and / or the different bandpass filter branches 141 enabled in the second matching adjustment unit 14. Therefore, in some embodiments, the corresponding matching branch 121 may be enabled and / or the corresponding bandpass filter branch 141 may be enabled by controlling the corresponding matching switch M2 in the matching branch M2 in the corresponding matching branch 121 to be turned on and / or the corresponding filter switch M4 in the corresponding bandpass filter branch 141 to be turned on, that is, the corresponding matching branch 121 may be enabled and / or the corresponding bandpass filter branch 141 may be enabled, so as to switch to a corresponding set of frequency band combinations.

[0284] See also Fig. 27 , is a more specific structural block diagram of the electronic device 100 in some embodiments of the present application. Fig. 27 As shown, the electronic device 100 further includes a controller 2 .

[0285] The controller 2 is at least used to control the antenna assembly 1 to work in a corresponding set of frequency band combinations according to the state of the electronic device 100. That is, the controller 2 can control the corresponding matching branch 121 in the first matching adjustment unit 12 to be in an enabled state and / or the corresponding bandpass filter branch 141 in the second matching adjustment unit 14 to be in an enabled state, specifically, to control the corresponding matching switch M2 in the matching branch M2 in the corresponding matching branch 121 to be turned on and / or the corresponding filter switch M4 in the corresponding bandpass filter branch 141 to be turned on, so that the corresponding matching branch 121 is in an enabled state and / or the corresponding bandpass filter branch 141 in the second matching adjustment unit 14 is in an enabled state, so as to work in a corresponding set of frequency band combinations.

[0286] In some embodiments, as mentioned above, the state of the electronic device 100 may include a placement state, etc. The controller 2 may control the operation in a corresponding set of frequency band combinations, or control the switching of frequency band combinations according to the placement state, etc., of the electronic device 100.

[0287] For example, in some embodiments, when the placement state of the electronic device 100 is that the top end D11 is facing upward and the bottom end D12 is facing downward, the controller 2 can control the corresponding matching branch 121 in the first matching adjustment unit 12 to be in an enabled state and / or the corresponding bandpass filter branch 141 in the second matching adjustment unit 14 to be in an enabled state, and the control operates in the aforementioned third group of frequency band combinations. As mentioned above, under the third group of frequency band combinations, the beam direction of the WiFi 2.4G frequency band is toward the bottom end D12, so that it will not be blocked by the hands or the body, thereby ensuring the communication performance of the WiFi 2.4G frequency band. In some embodiments, when the placement state of the electronic device 100 is a horizontal screen state with the side end D13 facing upward, the controller 2 can control the corresponding matching branch 121 in the first matching adjustment unit 12 to be in an enabled state and / or the corresponding bandpass filter branch 141 in the second matching adjustment unit 14 to be in an enabled state, and the control works in the aforementioned third group of frequency band combinations. As mentioned above, under the third group of frequency band combinations, the beam direction of the WiFi 2.4G frequency band is toward the side end D13, thereby ensuring that it will not be blocked by holding with both hands, thereby ensuring the communication performance of the WiFi2.4G frequency band.

[0288] In some embodiments, Fig. 27 As shown, the electronic device 100 further includes a sensor 3, through which the state of the electronic device is acquired, wherein the sensor 3 includes at least one of a gyroscope and a proximity sensor.

[0289] For example, when the sensor 3 includes a gyroscope, the sensor 3 can generate a corresponding posture sensing signal by sensing the placement state / posture of the electronic device 100. The controller 2 is connected to the sensor 3 to obtain the posture sensing signal generated by the sensor 3 and determine the placement state of the electronic device 100 based on the posture sensing signal.

[0290] In some embodiments, the state of the electronic device 100 may be the current communication signal quality state of the electronic device 100, and whether to switch to other frequency band combinations is determined according to the communication signal quality state of a group of frequency band combinations currently operated by the electronic device 100. For example, when the signal quality of a group of frequency band combinations currently operated by the electronic device 100 is lower than the preset signal quality, it may be switched to other groups of frequency band combinations, and when it is determined that the signal quality of other groups of frequency band combinations is better, it may stay in other groups of frequency band combinations.

[0291] Among them, the controller 2 can obtain the reference signal received power (Reference Signal Received Power) of each frequency band of a group of frequency band combinations currently operating, and determine the comprehensive reference signal received power of the group frequency band combination based on the reference signal received power of each frequency band. For example, the weighted average of the reference signal received powers of all frequency bands in the group frequency band combination can be calculated based on the reference signal received power of each frequency band and its weight, and used as the comprehensive reference signal received power.

[0292] As mentioned above, the electronic device 100 may further include the antenna assembly 1 in any of the aforementioned embodiments, which will not be illustrated one by one through the drawings herein.

[0293] The electronic device 100 also includes a memory, a battery, etc., which are irrelevant to the improvement of the present application and will not be described in detail.

[0294] The electronic device 100 of the present application may be a mobile phone, a tablet computer, a laptop computer or other electronic device.

[0295] The controller 2 may be a central processing unit, a single chip microcomputer, a digital signal processor, a microcontroller, etc.

[0296] Among them, the matching switch M2, filter switch M4 and other switches can be digitally controlled switches, for example, transistors such as MOS tubes, and can be turned on or off under the control of the controller 2 to achieve the enable state or disable state of the corresponding matching branch 121 or bandpass filter branch 141.

[0297] Through the antenna assembly 1 and the electronic device 100 in the present application, through the above structure, the first radiating branch 11, under the excitation of the first feed source 15, can support multiple groups of frequency band combinations through the matching adjustment of the first matching adjustment unit 12 and / or the second matching adjustment unit 14, or further cooperate with the second radiating branch 13, and can effectively meet the current demand for multiple frequency bands, and occupy less space. And the multiple groups of frequency band combinations all include WiFi bands, which can ensure that the WiFi band is always there, and can maintain the continuity of WiFi communication and improve the quality of WiFi communication. In addition, the beam direction of at least the WiFi band can be changed as needed, meeting the needs for different beam directions in different scenarios.

[0298] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0299] The above description is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application; in the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. An antenna assembly, characterized in that: include: A first radiation branch, comprising a first feeding point, a first grounding point and a first matching point, wherein the first grounding point is used for grounding, and the first grounding point is located between the first feeding point and the first matching point; A first matching adjustment unit, connected between the first matching point and ground; A second radiating branch node is adjacent to and spaced from the first radiating branch node, and the second radiating branch node includes a second matching point; A second matching adjustment unit, connected between the second matching point and ground; A first feed source connected to the first feeding point; Wherein, under the excitation of the first feed source, the first radiating branch supports multiple groups of frequency band combinations through the matching adjustment of the first matching adjustment unit and the second matching adjustment unit, and in cooperation with the second radiating branch, wherein each group of the frequency band combinations includes a WiFi band and a cellular band, wherein the cellular bands in different groups of frequency band combinations are at least partially different.

2. The antenna assembly according to claim 1, characterized in that: Each frequency band combination includes a WiFi band and at least two cellular bands.

3. The antenna assembly according to claim 1, characterized in that: The first radiating branch includes a first open end and a second open end relative to each other, the second radiating branch includes a third open end and a first ground end relative to each other, the first open end of the first radiating branch and the third open end of the second radiating branch are adjacent to and spaced apart from each other, the first feeding point is located between the first open end and the first ground point, the first matching point is located between the first ground point and the second open end, and the second matching point is located between the third open end and the first ground end.

4. The antenna assembly according to claim 3, characterized in that: The antenna assembly also includes a second feed source, and the second radiating branch also includes a second feeding point, the second feeding point is located between the first grounding point and the second open end, and is spaced apart from the second matching point, and the second feeding point is connected to the second feed source, wherein the second radiating branch supports the transmission and reception of electromagnetic wave signals in a preset frequency band under the excitation of the second feed source.

5. The antenna assembly according to claim 4, characterized in that: The preset frequency band is a frequency band outside the frequency bands in the multiple frequency combinations.

6. The antenna assembly according to claim 1, characterized in that: The preset frequency band is a low frequency band, and the cellular frequency bands in the multiple frequency band combinations include medium and high frequency bands and ultra-high frequency bands.

7. The antenna assembly according to claim 1, characterized in that: At least one frequency band in the frequency band combination of the partial group is achieved by coupling excitation of the first radiation branch by the first feed source to cause the second radiation branch to operate in a high-order mode.

8. The antenna assembly according to claim 1, characterized in that: The antenna assembly simultaneously operates in all frequency bands in one of the frequency band combinations, and the antenna assembly switches between the supported multiple frequency band combinations at least according to the matching adjustment of the first matching adjustment unit and the second matching adjustment unit.

9. The antenna assembly according to claim 8, characterized in that: The first matching adjustment unit includes multiple matching branches, and the multiple matching branches of the first matching adjustment unit are connected in parallel between the first matching point and the ground. The second matching adjustment unit includes multiple bandpass filter branches, and the multiple bandpass filter branches of the second matching adjustment unit are connected in parallel between the second matching point and the ground, wherein the multiple matching branches are used to achieve matching tuning, wherein each bandpass filter branch is used to achieve bandpass filtering of a corresponding frequency band to achieve an equivalent grounding effect of the corresponding frequency band, wherein each matching branch and each bandpass filter branch can be in an enabled or disabled state, and the antenna component switches between multiple groups of supported frequency band combinations at least according to the switching of the matching branch in the enabled state in the first matching adjustment unit and the switching of the bandpass filter branch in the enabled state in the second matching adjustment unit.

10. The antenna assembly according to claim 9, characterized in that: The first matching adjustment unit also includes a first switch module, the first switch module is connected between the multiple matching branches and the ground, the multiple matching branches are connected in parallel between the first matching point and the first switch module, or the first switch module is connected between the multiple matching branches and the first matching point, the multiple matching branches are connected in parallel between the first switch module and the ground; wherein the second matching adjustment unit also includes a second switch module, the second switch module is connected between the multiple band-pass filter branches and the ground, the multiple band-pass filter branches are connected in parallel between the second matching point and the second switch module, or the second switch module is connected between the multiple band-pass filter branches and the second matching point, the multiple band-pass filter branches are connected in parallel between the second switch module and the ground; wherein , the first switch module is used to conduct the electrical connection between the corresponding matching branch and the first matching point and the ground, so that the corresponding matching branch is in an enabled state, and the second switch module is used to conduct the electrical connection between the corresponding bandpass filter branch and the second matching point and the ground, so that the corresponding bandpass filter branch is in an enabled state, wherein each matching branch includes a matching element, and each bandpass filter branch includes an LC series circuit, wherein the matching element includes a capacitor or an inductor, and the LC series circuit includes a capacitor and an inductor connected in series, wherein the electrical connection between different matching branches and the first matching point and the ground is conducted by the first switch module, and the electrical connection between different bandpass filter branches and the second matching point and the ground is conducted by the second switch module, so as to switch the matching branch and the bandpass filter branch in the enabled state.

11. The antenna assembly according to claim 3, characterized in that: The first radiating branch includes a first branch part and a second branch part, the first branch part is the branch part of the first radiating branch located between the first grounding point and the first open end, and the second branch part is the branch part of the first radiating branch located between the first grounding point and the second open end, wherein the first radiating branch is used to support at least one frequency band in the multiple groups of frequency band combinations, the first branch part is also used to support at least one frequency band in the multiple groups of frequency band combinations, and the second branch part is also used to support at least one frequency band in the multiple groups of frequency band combinations.

12. The antenna assembly according to claim 11, characterized in that: The multiple groups of frequency band combinations include a first group of frequency band combinations, a second group of frequency band combinations and a third group of frequency band combinations; wherein, the first radiation branch, under the excitation of the first feed source, is matched and adjusted by the first matching adjustment unit and the second matching adjustment unit, and further cooperates with the second radiation branch to support the frequency bands in the first group of frequency band combinations; the first branch part and the second branch part of the first radiation branch, under the excitation of the first feed source, are matched and adjusted by the first matching adjustment unit to support the frequency bands in the second group of frequency band combinations; the first radiation branch and the second branch part of the first radiation branch, under the excitation of the first feed source, are matched and adjusted by the first matching adjustment unit and the second matching adjustment unit, and further cooperate with the second radiation branch to support the frequency bands in the third group of frequency band combinations.

13. The antenna assembly according to claim 12, wherein the first matching adjustment unit comprises a plurality of matching branches, wherein the plurality of matching branches of the first matching adjustment unit are connected in parallel between the first matching point and the ground, and the second matching adjustment unit comprises a plurality of bandpass filter branches, wherein the plurality of bandpass filter branches are connected in parallel between the second matching point and the ground, wherein: The multiple matching branches are used to achieve matching tuning, and each bandpass filter branch is used to achieve bandpass filtering of the corresponding frequency band, thereby achieving an equivalent grounding effect of the corresponding frequency band, wherein the multiple matching branches and the multiple bandpass filter branches can be selectively in an enabled or disabled state.

14. The antenna assembly according to claim 13, characterized in that: The first group of frequency band combinations includes B3 / B1 band, WiFi 2.4G band and N78 band. When the antenna assembly operates in a frequency band in the first group of frequency band combinations, the first radiation branch operates in a half-wavelength balanced mode under the excitation of the first feed source and the matching adjustment of the first matching adjustment unit to support the reception and transmission of electromagnetic wave signals in the B3 band or the B1 band, wherein the second matching adjustment unit implements bandpass filtering of a frequency band other than the WiFi 2.4G band and the N78 band, the second radiation branch operates in a three-quarter wavelength high-order mode under the coupling excitation of the first feed source to support the reception and transmission of electromagnetic wave signals in the WiFi2.4G band, and the second radiation branch also operates in a four-five wavelength high-order mode under the coupling excitation of the first feed source to support the reception and transmission of electromagnetic wave signals in the N78 band.

15. The antenna assembly according to claim 14, characterized in that: When the matching branch corresponding to the B3 frequency band in the first matching adjustment unit is enabled, the first radiating branch operates in a half-wavelength balanced mode under the excitation of the first feed source and the matching adjustment of the first matching adjustment unit to support the reception and transmission of electromagnetic wave signals in the B3 frequency band; when the matching branch corresponding to the B1 frequency band in the first matching adjustment unit is enabled, the first radiating branch operates in a half-wavelength balanced mode under the excitation of the first feed source and the matching adjustment of the first matching adjustment unit to support the reception and transmission of electromagnetic wave signals in the B1 frequency band.

16. The antenna assembly according to claim 13, characterized in that: The second group of frequency band combinations includes B3 / B1 band, WiFi 2.4G band and B41 band. When the antenna assembly operates in the frequency band in the second group of frequency band combinations, the second branch part of the first radiation branch operates in a quarter-wavelength resonance mode under the excitation of the first feed source and the matching adjustment of the first matching adjustment unit to support the reception and transmission of electromagnetic wave signals in the B3 band or the B1 band. The first branch part of the first radiation branch operates in a quarter-wavelength resonance mode under the excitation of the first feed source to support the WiFi 2.4G band and the B41 band.

17. The antenna assembly according to claim 16, characterized in that: When the matching branch corresponding to the B3 frequency band in the first matching adjustment unit is enabled, the second branch part operates in a quarter-wavelength resonance mode under the excitation of the first feed source and the matching adjustment of the first matching adjustment unit to support the reception and transmission of electromagnetic wave signals in the B3 frequency band; when the matching branch corresponding to the B1 frequency band in the first matching adjustment unit is enabled, the second branch part operates in a quarter-wavelength resonance mode under the excitation of the first feed source and the matching adjustment of the first matching adjustment unit to support the reception and transmission of electromagnetic wave signals in the B1 frequency band.

18. The antenna assembly according to claim 16, characterized in that The antenna assembly also includes a first matching circuit, which is connected between the first feed source and the first feeding point. The first branch part of the first radiation branch operates in a quarter-wavelength resonant mode under the excitation of the first feed source and the cooperation of the first matching circuit to support WiFi 2.4G frequency band and B41 frequency band.

19. The antenna assembly according to claim 13, characterized in that: The third frequency band combination includes B40 frequency band, B41 frequency band, WiFi 2.4G frequency band and N78 / N79 frequency band. When the antenna assembly operates in the frequency band in the third frequency band combination, the second branch part operates in a quarter-wavelength resonant mode under the excitation of the first feed source and the matching adjustment of the first matching adjustment unit to support the B40 frequency band and WiFi The first radiating branch operates in a half-wavelength balanced mode under the excitation of the first feed source and the matching adjustment of the first matching adjustment unit to support the reception and transmission of electromagnetic wave signals in the B41 band. When the second matching adjustment unit realizes the bandpass filtering of a frequency band other than the N78 band and the N79 band, the second radiating branch operates in a four-five-wavelength high-order mode under the coupling excitation of the first feed source to support the reception and transmission of electromagnetic wave signals in the N78 band. When the second matching adjustment unit realizes the bandpass filtering of the N79 band, the third branch part between the second matching point of the second radiating branch and the third open end operates in a quarter-wavelength resonant mode under the coupling excitation of the first feed source to support the reception and transmission of electromagnetic wave signals in the N79 band.

20. The antenna assembly according to claim 4, characterized in that The antenna assembly further includes a capacitor unit located at a side of the second matching point of the second radiation branch away from the third open end.

21. The antenna assembly according to claim 20, characterized in that The capacitor unit is a distributed capacitor structure.

22. The antenna assembly according to claim 4, characterized in that The preset frequency band is a low frequency band, and the second matching adjustment unit is further used to match and tune the preset frequency band.

23. The antenna assembly according to claim 22, characterized in that The low-frequency band includes multiple sub-bands, and the equivalent electrical length of the second radiation branch under the matching tuning of the second matching adjustment unit can be adjusted to be consistent with the resonance requirement of any sub-band of the low-frequency band, thereby supporting the transmission and reception of electromagnetic wave signals of any sub-band of the low-frequency band.

24. An electronic device, characterized in that: The electronic device comprises the antenna assembly as described in any one of claims 1-23.

25. The electronic device according to claim 24, characterized in that: The electronic device further includes a frame, and the first radiation branch and the second radiation branch are metal segments arranged on the frame.

26. The electronic device according to any one of claims 24-25, characterized in that: The beam directions of the WiFi frequency bands of at least some of the multiple frequency band combinations are different.

Images