Antenna and electronic equipment
By designing an antenna with a preset angle connection, the radiation part is excited by the feed point, the coverage of multi-bands is achieved, which solves the problem of insufficient signal coverage of existing antennas and improves the user experience.
Patent Information
- Application Number
- CN202311346224.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-17
- Publication Date
- 2025-04-18
AI Technical Summary
The antennas of existing electronic devices are difficult to cover multiple frequency bands at the same time, especially low frequency bands, such as N8 and N28 bands, resulting in insufficient signal coverage and poor user experience.
An antenna is designed, including a first radiator and a second radiator, both connected at a preset angle, and provided with a ground point and a feed point. The current at the feeding point does not completely return to the ground, and the current that has not returned to the ground stimulates the radiation part where the feeding point is not set, achieving coverage of the low-frequency band. At the same time, the radiation part where the feeding point is set radiates signals from other frequency bands.
Through this design, the coverable frequency band of the antenna is greatly improved, and it can cover both the medium and high frequency bands and the low frequency bands, including the N8 and N28 bands, improving the user experience.
Smart Images
Figure CN119852707A_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of electronic equipment, and in particular to an antenna and an electronic equipment. Background Art
[0002] With the continuous development of communication technology, the functions of electronic devices have gradually improved, the types of communication modes have become more and more diverse, the application scenarios have become more and more complex, and the number of antennas required has also increased accordingly. Summary of the invention
[0003] In order to overcome the problems existing in the related art, the present disclosure provides an antenna and an electronic device.
[0004] According to a first aspect of an embodiment of the present disclosure, an antenna is provided, which is applied to an electronic device, wherein the antenna comprises a first radiator, wherein the first radiator comprises a first radiating portion and a second radiating portion connected to each other, wherein the first radiating portion extends along a first direction, and the second radiating portion extends along a second direction, and the first direction and the second direction are arranged at a preset angle;
[0005] A grounding point is provided at the connection between the first radiating portion and the second radiating portion, a feeding point is provided at the first radiator, and the feeding point is located at an end of the first radiating portion or the second radiating portion away from the grounding point.
[0006] Optionally, the first radiator is configured as an IFA antenna.
[0007] Optionally, the first radiating portion includes a first radiating segment, the grounding point to the end of the first radiating portion constitutes the first radiating segment, and the feeding point is arranged on the first radiating portion to excite the first radiating segment to resonate in a 1 / 4 IFA mode to achieve coverage of the first frequency band.
[0008] Optionally, the first radiating portion includes a second radiating section, and the feeding point to the end of the first radiating portion constitutes the second radiating section, and the second radiating section resonates in a 1 / 4 monopole mode to achieve coverage of a second frequency band.
[0009] Optionally, the first radiation mode of the second radiation portion resonates in a third frequency band;
[0010] The first radiation mode is generated based on the excitation fed into the feeding point and the resonance of the first radiation section of the first radiation portion in the 1 / 4 IFA mode.
[0011] Optionally, the third frequency band includes the N8 frequency band.
[0012] Optionally, the second radiation portion is parallel to a side frame of the electronic device.
[0013] Optionally, the second radiation mode of the second radiation portion resonates in a fourth frequency band;
[0014] The second radiation mode is generated based on the excitation fed into the feeding point.
[0015] Optionally, the fourth frequency band includes the N28 frequency band.
[0016] Optionally, a tuning circuit is provided on the second radiating portion, and the second radiating portion is grounded through the tuning circuit;
[0017] The tuning circuit is used to adjust the resonant frequency of the third frequency band and / or the fourth frequency band.
[0018] Optionally, a distance between an access point on the second radiating portion for connecting to the tuning circuit and the grounding point is 15 mm to 20 mm.
[0019] Optionally, in the first direction, the length of the first radiating portion is 20 mm to 25 mm;
[0020] In the second direction, the length of the second radiation portion is 30 mm to 50 mm.
[0021] Optionally, the antenna further includes a second radiator, the second radiator extends along the first direction, and a gap is provided between the first radiator and the second radiator;
[0022] The second radiator constitutes a parasitic branch of the first radiator, and the second radiator resonates in a fifth frequency band.
[0023] Optionally, the fifth frequency band includes the N78 frequency band.
[0024] According to a second aspect of the present disclosure, an electronic device is provided, including a frame and the antenna as described in the first aspect.
[0025] Optionally, the antenna is arranged at a bottom corner of the frame.
[0026] Optionally, a resistor and / or a capacitor is provided at the grounding point of the antenna, and the antenna is grounded through the resistor and / or the capacitor.
[0027] Optionally, a frame at the USB interface of the electronic device constitutes a second radiator of the antenna.
[0028] The technical solution provided by the embodiments of the present disclosure may include the following beneficial effects: the current fed into the feeding point will not be completely returned to the ground at the grounding point, and the current that has not been returned to the ground will flow into the radiating part where the feeding point is not set, so as to stimulate the radiating part where the feeding point is not set to receive and transmit low-frequency band signals, and the radiating part with the feeding point is stimulated by the fed current to radiate signals of other frequency bands outside the low-frequency band, thereby increasing the coverable frequency band of the antenna and improving the user experience.
[0029] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.
[0031] Figure 1 It is a schematic diagram of an electronic device in the related art.
[0032] Figure 2 is a schematic diagram of a semiconductor device according to an exemplary embodiment of the present disclosure.
[0033] Figure 3 It is a schematic diagram of exciting the first radiator to form a vector surface current in the 0.9 GHz frequency band according to an embodiment of the present disclosure.
[0034] Figure 4 It is a schematic diagram of exciting the first radiator to form a vector surface current in the 0.7 GHz frequency band according to an embodiment of the present disclosure.
[0035] Figure 5 It is a simulation schematic diagram of an antenna provided according to an embodiment of the present disclosure.
[0036] Figure 6 It is a simulation schematic diagram of an antenna provided according to an embodiment of the present disclosure.
[0037] Figure 7 A simulation diagram of an antenna provided according to an embodiment of the present disclosure DETAILED DESCRIPTION
[0038] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.
[0039] At present, with the continuous development of communication technology, the functions of electronic equipment are gradually improved, the types of communication modes are becoming more and more abundant, the application scenarios are becoming more and more complex, and the required antennas are also increasing accordingly.
[0040] like Figure 1 As shown, an electronic device provided with an antenna of the related technology is shown, and the electronic device includes structural devices such as a USB interface 30', a speaker 40' and a physical card slot 50'. Four antennas for radiating low-frequency signals are provided in the electronic device, and the four antennas are ant1, ant3, ant4 and ant11, respectively, wherein ant1 and ant are conventional low-frequency main antennas and diversity antennas, which can be switched to different frequency bands by adjusting switches. The electronic device supports the low-frequency band N28, but does not support the medium-high frequency band and the N78 band, resulting in fewer signal frequency bands that can be covered by the electronic device. In addition, it is necessary to add an additional side seam 22' to the side frame of the electronic device so that ant3 can work normally. The setting position of the side seam 22' is irregular, which will reduce the appearance refinement of the electronic device or reduce the performance, thereby reducing the user experience.
[0041] In order to solve the above problems, the embodiments of the present invention provide an antenna and an electronic device, wherein the antenna includes a first radiator, the first radiator includes a first radiating portion and a second radiating portion which are connected and arranged at a preset angle, a grounding point is arranged at the connection between the first radiating portion and the second radiating portion, and a feeding point is arranged at one end of the first radiating portion or the second radiating portion away from the grounding point. The current fed into the feeding point will not be completely returned to the ground at the grounding point, and the current that has not been returned to the ground will flow into the radiating portion where the feeding point is not set, so as to stimulate the radiating portion where the feeding point is not set to transmit and receive low-frequency band signals. The radiating portion where the feeding point is set is stimulated by the fed current to radiate signals of other frequency bands outside the low-frequency band, thereby increasing the coverable frequency band of the antenna and improving the user experience.
[0042] According to an exemplary embodiment of the present disclosure, Figure 2 As shown, an embodiment of the present disclosure provides an antenna 10, which can be applied to an electronic device 100, including but not limited to a mobile phone, a computer with wireless communication function, a vehicle-mounted device, a smart wearable device (such as a smart watch, a wristband), etc. The antenna 10 has the function of transmitting and receiving wireless signals to realize communication between the electronic device 100 and a base station or other electronic devices 100.
[0043] like Figure 2As shown, the antenna 10 provided in the embodiment of the present disclosure includes a first radiator 11, and the first radiator 11 includes a first radiating portion 111 and a second radiating portion 112 connected to each other. The first radiating portion 111 and the second radiating portion 112 are arranged at a preset angle, and the preset angle can be any angle value between 85° and 95°. For example, the first radiating portion 111 can be arranged along a first direction ( Figure 2 The second radiating portion 112 may extend in the second direction ( Figure 2 The first radiator 111 extends in the y direction as shown in FIG. 1 , that is, there is a 90° angle between the first radiating portion 111 and the second radiating portion 112. The first radiator 11 includes but is not limited to a flexible printed circuit (FPC) antenna radiator, a laser direct structuring (LDS) antenna radiator, a print direct structuring (PDS) antenna radiator, and a frame antenna.
[0044] refer to Figure 2 One of the first radiating portion 111 and the second radiating portion 112 is provided with a feeding point 14. After the feeding point 14 is fed with an electrical signal, the fed electrical signal can stimulate the first radiator 11 to transmit and receive wireless signals of a preset frequency band (such as a medium or high frequency band). Figure 2 A grounding point 13 is provided at the connection between the first radiating portion 111 and the second radiating portion 112, and a feeding point 14 is provided at an end of the first radiating portion 111 or the second radiating portion 112 away from the grounding point 13. When current is fed into the feeding point 14, the current flows from the feeding point 14 to the grounding point 13 and returns to the ground (such as the frame 20 of the electronic device 100, the metal ground of the mainboard, etc.). However, the current cannot be completely returned to the ground at the grounding point 13, and the current that has not returned to the ground will flow into another radiating portion where the feeding point 14 is not provided, and stimulate the radiating portion where the feeding point 14 is not provided, so that it can transmit and receive low-frequency band signals.
[0045] In one example, reference Figure 2 , taking the feeding point 14 being arranged at the end of the first radiating portion 111 away from the grounding point 13 as an example, the current fed at the feeding point 14 flows toward the grounding point 13, a part of the current will flow back to the ground at the grounding point 13, and the other part of the current will flow into the second radiating portion 112 and stimulate the second radiating portion 112 to receive and transmit low-frequency band signals. Similarly, when the feeding point 14 is arranged at the end of the second radiating portion 112 away from the grounding point 13, the current that does not flow back to the ground will stimulate the first radiating portion 111, so that the first radiating portion 111 can receive and transmit low-frequency band signals.
[0046] In the disclosed embodiment, the current fed into the feeding point 14 will not be completely returned to the ground at the grounding point 13, and the current that has not been returned to the ground will flow into the radiating part where the feeding point 14 is not set, so as to stimulate the radiating part where the feeding point 14 is not set to receive and transmit low-frequency band signals. The radiating part with the feeding point 14 is stimulated by the fed current to radiate signals of other frequency bands outside the low-frequency band, thereby increasing the coverable frequency band of the antenna 10 and improving the user experience.
[0047] In an exemplary embodiment, Figure 2 As shown, an embodiment of the present disclosure provides an antenna 10, which includes a first radiator 11. The first radiator 11 includes a first radiating portion 111 and a second radiating portion 112 that are connected and arranged at a preset angle. A grounding point 13 is arranged at the connection between the first radiating portion 111 and the second radiating portion 112, and a feeding point 14 is arranged at one end of the first radiating portion 111 or the second radiating portion 112 away from the grounding point 13.
[0048] In this embodiment, Figure 2 As shown, the preset angle between the first radiating portion 111 and the second radiating portion 112 of the antenna 10 is 90°, that is, the first radiating portion 111 is along the first direction ( Figure 2 The second radiating portion 112 extends in the second direction ( Figure 2 The first direction may be the width direction of the electronic device 100, and the second direction may be the length direction of the electronic device 100. Figure 2 , the first radiator 11 may be an IFA (Inverted-F antenna, inverted F-type) antenna.
[0049] In some embodiments, reference Figure 2 , the first radiating portion 111 of the antenna can be parallel to the bottom frame 20 of the electronic device 100. It can be understood that the second radiating portion 112 of the antenna can be parallel to the side frame 20 of the electronic device 100, that is, the antenna can be set at the bottom corner of the electronic device 100, the bottom of the electronic device 100 is far away from the interference source, and the clearance environment is good, which can ensure that the antenna has good performance.
[0050] Continue to refer Figure 2 The first radiating portion 111 of the first radiator 11 includes a first radiating section, and the first negative section is composed of the first radiating portion 111 from the grounding point 13 to the end (bottom gap 21) of the first radiating portion 111 away from the grounding point 13, that is, the first radiating portion 111 as a whole constitutes the first radiating section. The antenna mode of the first radiating section is a 1 / 4IFA mode, so that the fed current can excite the first radiating section to send and receive signals of the first radiating section, and the first radiating section can achieve coverage of the first frequency band.
[0051] The first frequency band may be a mid-frequency band (Mid Band, referred to as MB for short), and the operating frequency of the mid-frequency band may be 1710 MHz to 2170 MHz.
[0052] In some embodiments, reference Figure 2 , the first radiating portion 111 of the first radiator 11 also includes a second radiating section, which is composed of the first radiating portion 111 from the feeding point 14 to the end of the first radiating portion 111 away from the grounding point 13 (the bottom break 21), that is, the first radiating portion 111 is located on the right side of the feeding point 14 ( Figure 2 The structure (in the x direction shown in FIG. 1 ) constitutes the second radiation section. The antenna mode of the second radiation section is a 1 / 4 monopole mode. The current fed into the feeding point 14 can excite the second radiation section to send and receive signals of the second radiation section. The second radiation section can achieve coverage of the second frequency band.
[0053] The second frequency band may be a high frequency band (High Band, referred to as HB for short), and the operating frequency of the high frequency band may be 2300 MHz to 2690 MHz.
[0054] It can be determined from the above that the first radiating portion 111 of the antenna provided in the embodiment of the present disclosure is capable of radiating medium and high frequency band (MHB) signals.
[0055] In an exemplary embodiment, Figure 2 As shown, an embodiment of the present disclosure provides an antenna 10, which includes a first radiator 11, the first radiator 11 includes a first radiating portion 111 and a second radiating portion 112 connected and arranged at an angle of 90°, a grounding point 13 is arranged at the connection between the first radiating portion 111 and the second radiating portion 112, and a feeding point 14 is arranged at one end of the first radiating portion 111 away from the grounding point 13. The first radiator 11 is configured as an IFA antenna, the first radiating portion 111 has a first radiating segment, and the first radiating segment can excite a first radiating segment covering a first frequency band (such as an intermediate frequency band).
[0056] In this embodiment, Figure 2 As shown, the second radiation portion 112 of the first radiator 11 is parallel to the side frame 20 of the electronic device 100 .
[0057] like Figure 2 As shown, it should be noted that when the current fed into the feeding point 14 of the first radiating portion 111 returns to the ground at the grounding point 13, some current will remain and not return to the ground but flow into the second radiating portion 112, and stimulate the second radiating portion 112, so that the second radiating portion 112 can send and receive wireless signals.
[0058] In one embodiment, reference Figure 2 , and combined with Figure 3 Based on the excitation fed into the feeding point 14 (that is, the current not returned to the ground) and the 1 / 4 IFA mode of the first radiation segment of the first radiation portion 111, the second radiation portion 112 can resonate to generate the first radiation mode, and the second radiation portion 112 in the first radiation mode can transmit and receive signals in the third frequency band.
[0059] Among them, the third frequency band may include the N8 frequency band, the operating frequency of the N8 frequency band is 880MHz~960MHz, and the N8 frequency band is one of the important frequency bands in the new radio (NR) technology in 5G communication. That is to say, the antenna provided in the embodiment of the present disclosure meets the 5G communication requirements, enabling users to use the 5G network.
[0060] In another embodiment, reference Figure 2 , and combined with Figure 4 Based on the non-ground return current fed into the second radiating portion 112 by the feeding point 14, the second radiating portion 112 can be stimulated to generate a second radiation mode, and the second radiation mode can radiate a fourth frequency band signal.
[0061] Among them, the second frequency band may include the N28 frequency band, the operating frequency of the N28 frequency band is 703MHz~830MHz, and the N28 frequency band and the N8 frequency band are both important frequency bands in the new air interface technology in 5G communication.
[0062] The operating frequency of the low-frequency signal is 700 MHz to 960 MHz, that is, the third frequency band and the fourth frequency band are both low-frequency band signals (Low Band, referred to as LB for short).
[0063] It can be determined from the above that in the antenna 10 provided in the embodiment of the present disclosure, the first radiating portion 111 of the antenna 10 can radiate the mid-frequency band (MB) signal and the high-frequency band (HB) signal, and the second radiating portion 112 of the antenna 10 can radiate the low-frequency band (LB) signal, that is, the antenna 10 provided in the embodiment of the present disclosure can achieve multi-band coverage, and because the low-frequency band signal includes the N8 band and the N28 band, which are gradually increasing in user demand, users can use the 5G network, which improves the user experience. In addition, the antenna 10 provided in the embodiment of the present disclosure can radiate the N28 band and the N8 band signals at the same time, so that the electronic device 100 using the antenna provided in the embodiment of the present disclosure has a 5G dual-card dual-pass (Dual SIM Dual Active, referred to as DSDA) function, and the dual-card dual-pass means that the incoming calls of the two phone cards are in a connectable state, which improves the user experience.
[0064] In one example, reference Figure 5 and Figure 6, shows the simulation results of the antenna 10 provided by the embodiment of the present disclosure, wherein the abscissa is the frequency (unit: GHz), the ordinate is the S parameter (unit: dB), and Figure 6 It can be seen that the radiation frequency of the antenna 10 provided in the embodiment of the present disclosure is high and can be basically stable above -10dB, which can meet the dual-card dual-channel requirements of the N28 frequency band and the N8 frequency band. The antenna 10 provided in the embodiment of the present disclosure does not need to use a switch to switch the N28 and N8 frequency bands, which reduces the complexity of the RF circuit and reduces the cost. In another example, refer to Figure 6 , shows the simulation results of the antenna provided by the embodiment of the present disclosure in multiple frequency bands, wherein the abscissa is the frequency (unit: GHz), the ordinate is the S parameter (unit: dB), and Figure 7 It can be seen that the antenna 10 provided in the embodiment of the present disclosure can radiate the low frequency band (N28_N8), and the N28_N8 band and the N7 / B7 band can exist at the same time (also called co-mode), so there is no need to add additional switches, where the frequency of N7 / B7 is 2500MHz~2570MHz.
[0065] In some embodiments, Figure 2 As shown, a tuning circuit 15 is provided on the second radiating portion 112, and the second radiating portion 112 is grounded through the tuning circuit 15. The resonant frequency of the first frequency band can be adjusted through the tuning circuit 15. In some optional embodiments, the resonant frequency of the second frequency band can also be adjusted through the tuning circuit 15. In some other optional embodiments, the resonant frequencies of the first frequency band and the second frequency band can also be adjusted simultaneously through the adjustment circuit.
[0066] The tuning circuit 15 may include a capacitor or an inductor. For example, the capacitance value of the capacitor may be adjusted to adjust the impedance of the second radiating portion 112, so that the resonant frequency of the radiating portion is shifted toward the high frequency band or the low frequency band in a small range. , so that the first frequency band radiated by the second radiating portion 112 covers the N8 frequency band, and the second frequency band covers the N28 frequency band.
[0067] In an optional manner, by controlling the tuning circuit 15, the top of the second radiating portion 112 ( Figure 2 For example, the side slits 22 of the left and right side frames 20 of the electronic device 100 can be symmetrically arranged to improve the refinement of the industrial design of the electronic device 100 and improve the aesthetics of the electronic device 100.
[0068] In one embodiment, reference Figure 2 , in the second direction ( Figure 2In the y direction shown in FIG, the distance between the access point on the second radiating portion 112 for connecting to the tuning circuit 15 and the grounding point 13 can be 15 mm to 20 mm. The specific location of the tuning circuit 15 can vary depending on the design of the electronic device 100, and is not limited here.
[0069] In one embodiment, reference Figure 2 , in the first direction ( Figure 2 In the x direction shown in FIG, the length of the first radiating portion 111 is 20 mm to 25 mm, that is, the distance between the grounding point 13 and the bottom break 21 is 20 mm to 25 mm.
[0070] In one embodiment, reference Figure 2 , in the second direction ( Figure 2 In the y direction shown in FIG, the length of the second radiating portion 112 is 30 mm to 50 mm, that is, the distance between the grounding point 13 and the side slit 22 is 30 mm to 50 mm. The size of the second radiating portion 112 may vary depending on the design of the electronic device 100, and is not limited here.
[0071] In an exemplary embodiment, Figure 2 As shown, an embodiment of the present disclosure provides an antenna 10, which includes a first radiator 11, the first radiator 11 includes a first radiating portion 111 and a second radiating portion 112 that are connected and arranged at an angle of 90°, a grounding point 13 is arranged at the connection between the first radiating portion 111 and the second radiating portion 112, and a feeding point 14 is arranged at one end of the first radiating portion 111 away from the grounding point 13. The first radiator 11 is configured as an IFA antenna, the first radiating portion 111 has a first radiating section, and the first radiating section can excite a first radiating section covering an intermediate frequency band.
[0072] The antenna 10 provided in this embodiment may include any structure, device, etc. of the antenna 10 provided in the above-mentioned embodiments.
[0073] In this embodiment, Figure 2 As shown, the antenna further includes a second radiator 12 , which extends along the first direction, and a break (ie, a bottom break 21 ) is provided between the first radiator 11 and the second radiator 12 .
[0074] The second radiator 12 constitutes a parasitic branch of the first radiator 11, and the second radiator 12 resonates in the fifth frequency band. The fifth frequency band may include the N78 frequency band. The N78 frequency band is a required frequency band in 5G communication, and the operating frequency of the N78 frequency band is 3300MHz to 3800MHz.
[0075] It is understandable that the lower the frequency of the electrical signal, the weaker the ability to transmit through electromagnetic coupling; the higher the frequency of the electrical signal, the stronger the ability to transmit through electromagnetic coupling. Therefore, among the electrical signals fed into the first radiator 11, part of the electrical signals with lower frequencies can be transmitted to the outside world through the first radiator 11 (1701MHz~2690MHz), while part of the electrical signals with higher frequencies can be transmitted to the second radiator 12 through electromagnetic coupling and transmitted to the outside world through the second radiator 12 (3300MHz~3800MHz). Thus, the first radiator 11 and the second radiator 12 can be used to transmit wireless signals of different frequencies to the outside world, respectively, and no interference will be generated between the first radiator 11 and the second radiator 12.
[0076] In some embodiments, Figure 2 As shown, the antenna provided in the embodiment of the present disclosure further includes an adjustment switch 16, which can be arranged at the feeding point 14 of the first radiating portion 111. The adjustment switch 16 can be a single-pole multi-throw switch, and the antenna can be controlled to receive and transmit wireless signals of a preset frequency band by controlling the connection state of the adjustment switch 16. In one example, the adjustment switch 16 can be a single-pole four-throw switch.
[0077] According to an exemplary embodiment of the present disclosure, Figure 2 As shown, an embodiment of the present disclosure provides an electronic device 100, and the electronic device 100 includes a frame 20 and an antenna 10 provided by the above embodiment of the present disclosure.
[0078] In some optional embodiments, part of the structure of the frame 20 can serve as the radiator of the antenna, that is, the antenna 10 can be a frame antenna. The frame antenna design mainly utilizes the metal frame 20 as a part of the antenna 10 for radiation. The forms of the frame antenna include IFA antenna, Monopole antenna and Loop antenna, etc.
[0079] In some embodiments, reference Figure 2 In the electronic device 100 provided in the embodiment of the present disclosure, the antenna 10 may be disposed at the bottom corner of the frame 20 of the electronic device 100. Figure 2 Taking the orientation shown as an example, the antenna can be set at the lower left corner of the electronic device 100, or it can be set at the lower right corner. Figure 2 The electronic device 100 provided in the embodiment of the present disclosure further includes a speaker 40 (speaker, referred to as SPK) and a physical card slot 60 (such as a Subscriber Identity Module, referred to as SIM), and the antenna can be arranged on a side of the electronic device 100 where the speaker 40 is arranged.
[0080] In some embodiments, reference Figure 2, a resistor is provided at the grounding point 13 of the antenna 10, and the resistor may be a zero ohm resistor. In some optional embodiments, a capacitor is provided at the grounding point 13 of the antenna 10, and the capacitance value of the capacitor is generally greater than 10 pF. In other optional embodiments, a resistor and a capacitor may be provided at the grounding point 13 of the antenna at the same time.
[0081] In some embodiments, Figure 2 As shown, in the electronic device 100 provided in the embodiment of the present disclosure, the frame 20 at the USB interface 30 of the electronic device 100 can constitute the second radiator 12 of the antenna. The second radiator 12 of the antenna serves as a parasitic branch of the first radiator 11 and is used to radiate N78 frequency band signals.
[0082] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.
[0083] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims
1. An antenna, characterized in that: Applied to electronic equipment, the antenna includes a first radiator, the first radiator includes a first radiating portion and a second radiating portion connected to each other, the first radiating portion extends along a first direction, the second radiating portion extends along a second direction, and the first direction and the second direction are arranged at a preset angle; A grounding point is provided at the connection between the first radiating portion and the second radiating portion, a feeding point is provided at the first radiator, and the feeding point is located at an end of the first radiating portion or the second radiating portion away from the grounding point.
2. The antenna according to claim 1, characterized in that The first radiator is configured as an IFA antenna.
3. The antenna according to claim 2, characterized in that: The first radiating part includes a first radiating section, and the grounding point to the end of the first radiating part constitutes the first radiating section. The feeding point is arranged on the first radiating part to excite the first radiating section to resonate in the 1 / 4 IFA mode to achieve coverage of the first frequency band.
4. The antenna according to claim 3, characterized in that: The first radiating portion includes a second radiating section, and the feeding point to the end of the first radiating portion constitutes the second radiating section, and the second radiating section resonates in a 1 / 4 monopole mode to achieve coverage of a second frequency band.
5. The antenna according to claim 3, characterized in that: The first radiation mode of the second radiation portion resonates in a third frequency band; The first radiation mode is generated based on the excitation fed into the feeding point and the resonance of the first radiation section of the first radiation portion in the 1 / 4 IFA mode.
6. The antenna according to claim 5, characterized in that The third frequency band includes the N8 frequency band.
7. The antenna according to claim 3, characterized in that: The second radiation portion is parallel to a side frame of the electronic device.
8. The antenna according to claim 5, characterized in that: The second radiation mode of the second radiation portion resonates in a fourth frequency band; The second radiation mode is generated based on the excitation fed into the feeding point.
9. The antenna according to claim 8, characterized in that The fourth frequency band includes the N28 frequency band.
10. The antenna according to claim 8, characterized in that A tuning circuit is provided on the second radiating portion, and the second radiating portion is grounded through the tuning circuit; The tuning circuit is used to adjust the resonant frequency of the third frequency band and / or the fourth frequency band.
11. The antenna according to claim 10, characterized in that: The distance between the access point on the second radiating portion for connecting with the tuning circuit and the grounding point is 15 mm to 20 mm.
12. The antenna according to claim 1, characterized in that In the first direction, the length of the first radiating portion is 20 mm to 25 mm; In the second direction, the length of the second radiation portion is 30 mm to 50 mm.
13. The antenna according to claim 3, characterized in that: The antenna further includes a second radiator, the second radiator extends along the first direction, and a gap is provided between the first radiator and the second radiator; The second radiator constitutes a parasitic branch of the first radiator, and the second radiator resonates in a fifth frequency band.
14. The antenna according to claim 13, characterized in that The fifth frequency band includes the N78 frequency band.
15. An electronic device, characterized in that: It comprises a frame and an antenna as described in any one of claims 1 to 14.
16. The electronic device according to claim 15, characterized in that: The antenna is arranged at the bottom corner of the frame.
17. The electronic device according to claim 15 or 16, characterized in that: A resistor and / or a capacitor is provided at the grounding point of the antenna, and the antenna is grounded through the resistor and / or the capacitor.
18. The electronic device according to claim 16, characterized in that: The frame at the USB interface of the electronic device constitutes the second radiator of the antenna.