Dual-frequency antenna and electronic equipment

Abstract

The embodiment of the invention discloses a dual-frequency antenna. The dual-frequency antenna comprises a radiator, a feed device and a first tuning module, the radiator comprises a first radiator, a feed point is arranged on the radiator, and the first radiator is electrically connected with the feed device through the feed point; the first radiator is electrically connected with the first tuning module and is used for receiving a first signal of a first frequency and a second signal of a second frequency; wherein the equivalent length of the first radiator is 1 / 4 of the wavelength corresponding to the frequency between the first frequency and the second frequency. The embodiment of the invention further provides electronic equipment.

Description

Technical Field

[0001] The present application relates to antenna technology in the antenna field, and in particular to a dual-frequency antenna and electronic equipment. Background Art

[0002] The satellite positioning antenna in the electronic device plays a key role in the satellite positioning performance of the electronic device; wherein, in the related art, the satellite positioning antenna usually includes two-segment positioning antennas, each segment of the positioning antenna receives the positioning signal of the corresponding frequency band, and then the electronic device is positioned based on the received positioning signals of the two frequency bands; however, the satellite positioning antenna in the related art has a complex structure and occupies a large amount of space. Summary of the invention

[0003] The embodiments of the present application are intended to provide a dual-frequency antenna and electronic equipment, which solve the problem in the related art that the satellite positioning antenna has a complex structure and occupies a large amount of space.

[0004] To achieve the above purpose, the technical solution of this application is implemented as follows:

[0005] A dual-frequency antenna, comprising:

[0006] A radiator, a feeding device and a first tuning module;

[0007] The radiator comprises a first radiator, a feeding point is arranged on the radiator, and the first radiator is electrically connected to the feeding device via the feeding point;

[0008] The first radiator is electrically connected to the first tuning module, and is used to receive a first signal of a first frequency and a second signal of a second frequency;

[0009] The equivalent length of the first radiator is 1 / 4 of the wavelength corresponding to the frequency between the first frequency and the second frequency.

[0010] In the above solution, the first signal is a first positioning signal, and the second signal is a second positioning signal.

[0011] In the above solution, the radiator further includes:

[0012] A second radiator, wherein the second radiator is connected to the first radiator, and the first radiator and the second radiator receive signals of different types.

[0013] In the above solution, the second radiator is used to receive WIFI signals and / or Bluetooth signals.

[0014] In the above solution, the shape of the radiator is an arc segment.

[0015] In the above solution, the first radiator is connected to the first tuning module through the feeding device.

[0016] In the above solution, the dual-frequency antenna also includes:

[0017] A second tuning module, wherein the second tuning module is connected to one end of the first radiator; and / or,

[0018] A third tuning module is connected to the first radiator through a ground terminal.

[0019] An electronic device, comprising a housing, a position determination device and the above-mentioned dual-frequency antenna, wherein the housing comprises a bottom wall and a side wall connected to the bottom wall, and the dual-frequency antenna is arranged on the side wall;

[0020] The location determining device is electrically coupled to the dual-frequency antenna, and is configured to receive a first signal of a first frequency and a second signal of a second frequency, and determine the current geographic location of the electronic device based on the first signal and the second signal.

[0021] In the above solution, the feeding point is located at 7 to 9 o'clock or 9 to 11 o'clock of the bottom wall.

[0022] The dual-frequency antenna and electronic device provided in the embodiments of the present application include: a radiator, a feeding device and a first tuning module; the radiator includes a first radiator, a feeding point is arranged on the radiator, and the first radiator is electrically connected to the feeding device via the feeding point; the first radiator is electrically connected to the first tuning module, and is used to receive a first signal of a first frequency and a second signal of a second frequency; wherein the equivalent length of the first radiator is 1 / 4 of the wavelength corresponding to the frequency between the first frequency and the second frequency; in this way, by electrically connecting the first radiator to the first tuning module and the equivalent length of the first radiator is 1 / 4 of the wavelength corresponding to the frequency between the first frequency and the second frequency, signals of two different frequencies are received, and there is no need to separately set up two first radiators of different lengths to receive signals of two different frequencies, thereby simplifying the internal structure of the dual-frequency antenna, reducing the complexity of the dual-frequency antenna, and further reducing the space occupied by the dual-frequency antenna in the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the structure of a dual-frequency antenna provided in an embodiment of the present application;

[0024] Figure 2 A schematic diagram of the structure of another dual-frequency antenna provided in an embodiment of the present application;

[0025] Figure 3 A schematic diagram of the structure of another dual-frequency antenna provided in an embodiment of the present application;

[0026] Figure 4 A schematic diagram of the structure of a dual-frequency antenna provided in another embodiment of the present application;

[0027] Figure 5 A gain diagram of a 1.6 GHz positioning signal provided by another embodiment of the present application;

[0028] Figure 6 A gain diagram of a 1.2 GHz positioning signal provided by another embodiment of the present application;

[0029] Figure 7 A return loss diagram of receiving positioning signals of two different frequencies in the related art;

[0030] Figure 8 A schematic diagram of the structure of an electronic device provided in one embodiment of the present application;

[0031] Fig. 9 A top view of an electronic device provided in one embodiment of the present application;

[0032] Fig.10 A return loss diagram of receiving two positioning signals of different frequencies and two communication signals provided in an embodiment of the present application;

[0033] Fig.11 A top view of an electronic device provided in yet another embodiment of the present application;

[0034] Fig.12 A return loss diagram of receiving two positioning signals of different frequencies and two communication signals is provided in yet another embodiment of the present application.

[0035] The markings in the accompanying drawings are as follows:

[0036] 100, dual-band antenna; 110, radiator; 111, first radiator; 112, second radiator; 120, feeding device; 130, first tuning module; 140, feeding point; 150, second tuning module; 160, third tuning module; 200, electronic device; 210, position determination device; 220, bottom wall; 230, side wall. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0038] It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0039] The present application embodiment provides a dual-frequency antenna, such as Figure 1As shown, the dual-band antenna 100 includes:

[0040] A radiator 110, a feeding device 120 and a first tuning module 130;

[0041] The radiator 110 includes a first radiator 111 , a feeding point 140 is disposed on the radiator 110 , and the first radiator 111 is electrically connected to the feeding device 120 via the feeding point 140 ;

[0042] The first radiator 111 is electrically connected to the first tuning module 130 and is used to receive a first signal of a first frequency and a second signal of a second frequency;

[0043] The equivalent length of the first radiator 111 is 1 / 4 of the wavelength corresponding to the frequency between the first frequency and the second frequency.

[0044] In the embodiment of the present application, the first radiator 111 is a conductive conductor, and the material of the first radiator 111 determines its radiation characteristics and frequency characteristics.

[0045] Specifically, the material of the first radiator 111 may be metal, which has good electrical conductivity and thermal conductivity, and the radiation efficiency and impedance matching performance of the first radiator 111 made of metal are better than those of the first radiator 111 made of other materials. In a feasible implementation, the metal includes at least one of copper, aluminum, steel and the like.

[0046] Specifically, the material of the first radiator 111 includes plastic and metal coating; in a feasible implementation, laser direct structuring (LDS) technology can be used to complete the laser line path on the plastic by laser engraving to obtain the first radiator 111.

[0047] Specifically, the material of the first radiator 111 includes a ceramic substrate and a metal coating. In a feasible implementation, the metal coating can be printed on the surface of the ceramic substrate to obtain the first radiator 111. The material of the metal coating can be silver.

[0048] It should be noted that the specific material of the first radiator 111 can be flexibly selected according to the actual application scenario, and the embodiment of the present application does not limit the material of the first radiator 111.

[0049] In the embodiment of the present application, a feed point 140 is provided on the radiator 110, and the first radiator 111 is electrically connected to the feeding device 120 via the feed point 140 to transmit and receive wireless signals. The position of the feed point 140 can be flexibly set according to the actual application scenario, and the embodiment of the present application does not limit the specific position of the feed point 140 on the radiator 110.

[0050] The first radiator 111 is electrically connected to the first tuning module 130 and the equivalent length of the first radiator 111 is 1 / 4 of the wavelength corresponding to the frequency between the first frequency and the second frequency, so as to receive a first signal of the first frequency and a second signal of the second frequency; the first signal and the second signal may be sent by a satellite; of course, the first signal and the second signal may also be sent by a base station. The first frequency and the second frequency are different. The first signal and the second signal may be positioning signals for positioning.

[0051] It should be noted that setting the length of the first radiator 111 based on the first frequency of the first signal and the second frequency of the second signal can ensure the signal strength of the received first signal and the second signal, further improving the signal receiving effect of the dual-frequency antenna 100.

[0052] The equivalent length is the length of the portion of the first radiator 111 used for receiving wireless signals.

[0053] In a feasible implementation, the equivalent length of the first radiator 111 can be calculated by the following formula (1):

[0054] L=(1 / 4) λ=c / (4f ) Formula (1)

[0055] Wherein, "L" represents the equivalent length of the first radiator 111; λ is the wavelength corresponding to the frequency between the first frequency and the second frequency; "f" represents any frequency between the first frequency and the second frequency; and "c" represents the speed of light.

[0056] In the embodiment of the present application, the first radiator 111 is electrically connected to the feeding device 120 via the feeding point 140, and can receive wireless signals. Then, the first tuning module 130 can tune the wireless signals to obtain a first signal of a first frequency and a second signal of a second frequency. In this way, by electrically connecting the first radiator 111 to the first tuning module 130, and the equivalent length of the first radiator 111 is 1 / 4 of the wavelength corresponding to the frequency between the first frequency and the second frequency, two signals of different frequencies are received, and there is no need to separately set up two antennas to receive two signals of different frequencies, so as to avoid mutual interference between the two antennas in the performance of the response antenna.

[0057] The first signal may be a first positioning signal, and the second signal may be a second positioning signal.

[0058] In a feasible implementation, the first radiator 111 is electrically connected to the feeding device 120 via the feeding point 140 and can receive a wireless signal. Then the first tuning module 130 can tune the wireless signal to obtain a first signal of a first frequency and a second signal of a second frequency.

[0059] In another feasible implementation, the first radiator 111 is electrically connected to the feeding device 120 via the feeding point 140, and can receive two wireless signals. The first tuning module 130 determines a first wireless signal whose signal frequency is close to the first frequency and a second wireless signal whose signal frequency is close to the second frequency from the two wireless signals. The first wireless signal can then be frequency modulated to obtain a first signal of the first frequency, and the second wireless signal can be frequency modulated to obtain a second signal of the second frequency.

[0060] The first signal of the first frequency may be a satellite positioning signal of the L1 frequency in the GPS frequency band, and the second signal of the second frequency may be a satellite positioning signal of the L5 frequency in the GPS frequency band. The L1 frequency is 1.6 GHZ, and the L5 frequency is 1.2 GHZ.

[0061] It should be noted that the dual-frequency antenna 100 may also include a location determination device 210; of course, the location determination device 210 may also be disposed in the electronic device where the dual-frequency antenna 100 is located. The location determination device 210 may determine the current geographic location of the electronic device based on the first signal and the second signal.

[0062] In a feasible implementation, the electronic device may be a wearable device or a mobile phone; wherein the wearable device includes one of a smart helmet, smart glasses, a smart mask, a smart watch, a smart bracelet, a smart shoe, and the like.

[0063] It should be noted that a ground terminal may also be connected to the first radiator 111 to perform impedance tuning so that the dual-band antenna 100 can receive the first signal and the second signal with optimal performance.

[0064] The dual-frequency antenna provided in the embodiment of the present application includes: a radiator, a feeding device and a first tuning module; the radiator includes a first radiator 111, a feeding point is arranged on the radiator, and the first radiator is electrically connected to the feeding device via the feeding point; the first radiator is electrically connected to the first tuning module, and is used to receive a first signal of a first frequency and a second signal of a second frequency; wherein, the equivalent length of the first radiator is 1 / 4 of the wavelength corresponding to the frequency between the first frequency and the second frequency; in this way, by electrically connecting the first radiator to the first tuning module and the equivalent length of the first radiator is 1 / 4 of the wavelength corresponding to the frequency between the first frequency and the second frequency, signals of two different frequencies are received, and there is no need to separately set two first radiators of different lengths to receive signals of two different frequencies, thereby simplifying the internal structure of the dual-frequency antenna, reducing the complexity of the dual-frequency antenna, and further reducing the space occupied by the dual-frequency antenna in the electronic device.

[0065] Based on the above embodiments, the embodiments of the present application provide a dual-frequency antenna, such as Figure 1As shown, the dual-band antenna 100 includes:

[0066] A radiator 110, a feeding device 120 and a first tuning module 130;

[0067] The radiator includes a first radiator 111 , a feeding point 140 is provided on the radiator 110 , and the first radiator 111 is electrically connected to the feeding device 120 via the feeding point 140 ;

[0068] The first radiator 111 is electrically connected to the first tuning module 130 and is used to receive a first signal of a first frequency and a second signal of a second frequency;

[0069] The equivalent length of the first radiator 111 is 1 / 4 of the wavelength corresponding to the frequency between the first frequency and the second frequency.

[0070] like Figure 2 As shown, the radiator further includes: a second radiator 112, the second radiator 112 is connected to the first radiator 111, and the types of signals received by the first radiator 111 and the second radiator 112 are different; the second radiator 112 is a conductive conductor.

[0071] In other embodiments of the present application, the second radiator 112 and the first radiator 111 may be made of the same material, or may be different materials; the first radiator 111 and the second radiator 112 have different lengths.

[0072] The second radiator 112 can receive at least one signal, and the signal received by the second radiator 112 is a communication signal; the signal received by the first radiator 111 is a positioning signal. In this way, different types of signals can be received by the first radiator 111 and the second radiator 112, so that the dual-frequency antenna 100 can be applied not only to positioning scenarios, but also to communication scenarios.

[0073] It should be noted that the shape of the radiator may be a circular arc segment; wherein the shapes of the first radiator 111 and the second radiator 112 may both be circular arc segments.

[0074] In a feasible implementation, when the electronic device is a round smart watch, the shape of the radiator is an arc segment. In this way, the original structure of the electronic device can be utilized to integrate the dual-frequency antenna 100 on the side wall of the electronic device to realize the application of the dual-frequency antenna 100 on electronic devices of smaller sizes. The dual-frequency antenna 100 can be integrated inside the electronic device without reshaping the internal structure of the electronic device, thereby saving costs and reducing the structural complexity of the electronic device.

[0075] In other embodiments of the present application, the second radiator 112 is used to receive WIFI signals and / or Bluetooth signals.

[0076] The communication signal includes a Wireless-Fidelity (WIFI) signal and / or a Bluetooth signal.

[0077] When the second radiator 112 is only used to receive WIFI signals, the length of the second radiator 112 is 1 / 4 of the wavelength corresponding to the third frequency of the WIFI signal.

[0078] When the second radiator 112 is used only for receiving Bluetooth signals, the length of the second radiator 112 is 1 / 4 of the wavelength corresponding to the fourth frequency of the Bluetooth signal;

[0079] When the second radiator 112 needs to receive WIFI signals and Bluetooth signals, the length of the second radiator 112 is 1 / 4 of the wavelength corresponding to the third frequency of the WIFI signal or the fourth frequency of the Bluetooth signal; wherein the third frequency is the same as the fourth frequency.

[0080] In this way, by setting the length of the second radiator 112 according to the frequency of the signal to be received by the second radiator 112 to ensure the signal strength of the signal received by the second radiator 112, the effect of the second radiator 112 receiving the signal is further improved.

[0081] In other embodiments of the present application, Figure 2 As shown, the shape of the radiator is a circular arc segment.

[0082] The shape of the radiator may be a minor arc segment; of course, it may also be a major arc segment.

[0083] like Figure 2 As shown, the shape of the radiator is a circular arc segment, wherein when the shape of the radiator is a minor arc segment, the shape of the first radiator 111 and the shape of the second radiator 112 are both minor arc segments. When the shape of the radiator is a major arc segment, the shape of the first radiator 111 and the shape of the second radiator 112 can both be minor arc segments; or, the shape of the first radiator 111 is a minor arc segment, and the shape of the second radiator 112 is a major arc segment; or, the shape of the first radiator 111 is a major arc segment, and the shape of the second radiator 112 is a minor arc segment.

[0084] It should be noted that in the prior art, two different independent positioning antennas are set to receive the first signal of the first frequency and the second signal of the second frequency, and a communication antenna is set to receive the communication signal. That is to say, at least three independent antennas are required to receive the positioning signal and the communication signal. In the technical solution of the present application, a radiator of an arc segment can receive two positioning signals and communication signals of different frequencies, simplifying the structure of the antenna, reducing the size of the antenna, and facilitating the integration of the antenna inside the electronic device, that is, realizing the integration of the antenna into a small-sized electronic device. Moreover, the influence between the different positioning antennas set separately is avoided, the performance of the antenna is optimized, and the positioning performance of the electronic device is further improved.

[0085] In other embodiments of the present application, Figure 3 As shown, the first radiator 111 is connected to the first tuning module 130 through the feeding device 120 .

[0086] The first tuning module 130 includes a first tuning device.

[0087] In a feasible implementation manner, the first tuning component includes a capacitor and / or an inductor.

[0088] Specifically, Figure 3 As shown, the first radiator 111 is connected to the feeding device 120 through the feeding point 140, and is used to receive at least one wireless signal, and the wireless signal is tuned and processed by the first tuning module 130 to obtain a first positioning signal of a first frequency and a second positioning signal of a second frequency; thus, by connecting the first tuning module 130 to the feeding device 120, the first tuning module 130 can timely process the at least one received wireless signal to obtain the first positioning signal and the second positioning signal, thereby improving the speed at which the dual-frequency antenna 100 receives the first positioning signal and the second positioning signal. The first frequency is 1.2GHZ; the second frequency is 1.6GHZ.

[0089] In a feasible implementation, the frequency of a received wireless signal may be 1.4 GHZ, and the wireless signal may be tuned by the first tuning module 130 to obtain a first positioning signal of 1.2 GHZ and a second positioning signal of 1.6 GHZ.

[0090] In a feasible implementation, two wireless signals can be received, and the frequencies of the two wireless signals are 1.4GHZ and 1.8GHZ respectively. The first tuning module 130 can be used to tune the 1.4GHZ wireless signal to obtain a first positioning signal of 1.2GHZ, and the first tuning module 130 can be used to tune the 1.8GHZ wireless signal to obtain a second positioning signal of 1.6GHZ.

[0091] In other embodiments of the present application, the dual-frequency antenna 100 further includes:

[0092] A second tuning module 150, the second tuning module 150 is connected to one end of the first radiator 111; and / or,

[0093] The third tuning module 160 is connected to the first radiator 111 through a ground terminal.

[0094] like Figure 4 As shown, the shape of the radiator is an arc segment, and the dual-band antenna 100 further includes a second tuning module 150 and a third tuning module 160 for explanation:

[0095] The second tuning module 150 is connected to one end of the first radiator 111, and the third tuning module 160 is connected to the first radiator 111 through a ground terminal; the second tuning module 150 includes a second tuning device for realizing aperture tuning; the aperture tuning is used to improve the efficiency of the antenna. The third tuning module 160 includes a third tuning device for impedance tuning.

[0096] In a feasible implementation, the second tuning device may include at least one of an aperture tuner, a parallel capacitor (to lower the resonant frequency) and a parallel inductor (to increase the resonant frequency); by connecting the second tuning device to one end of the first radiator 111, the antenna operating frequency band can be tuned and the efficiency of the antenna can be improved.

[0097] In a feasible implementation, one end of the ground terminal is connected to the first radiator 111, and the other end of the ground terminal is connected to the third tuning device to achieve impedance tuning, so that the dual-frequency antenna 100 can have the maximum radiation power at any frequency to reduce the loss caused by impedance mismatch, thereby enabling the dual-frequency antenna 100 to receive the first signal and the second signal with optimal performance. The third tuning device may include an antenna tuner.

[0098] In other embodiments of the present application, the size of the radiator can be reduced while ensuring that the equivalent length of the first radiator 111 is 1 / 4 of the wavelength corresponding to the frequency between the first frequency and the second frequency, so as to reduce the size of the dual-frequency antenna 100, thereby further reducing the space occupied by the dual-frequency antenna 100 when integrated into an electronic device.

[0099] In addition, the position of the feeding point 140 on the first radiator 111 can be flexibly adjusted to adjust the receiving effects of the first signal and the second signal.

[0100] It should be noted that in the related art, two independent radiators are used to receive positioning signals of corresponding frequencies respectively. However, when the two radiators are rotated to adjust the feed point positions to ensure the reception effect of the first positioning signal and the second positioning signal, the positions of the two radiators will overlap. Therefore, only the reception effect of one positioning signal can be guaranteed, and the reception effect of the other positioning signal cannot be taken into account, resulting in a large difference in the reception effects of the two positioning signals, which reduces the accuracy of positioning based on the two positioning signals. The following is a detailed explanation of this in conjunction with the accompanying drawings.

[0101] like Figure 5 The figure shows the gain diagram of the antenna receiving the 1.6 GHz positioning signal. When ensuring the reception effect of the 1.6 GHz positioning signal, it is necessary to satisfy that the antenna receives the right circularly polarized signal better than the left circularly polarized signal. At this time, Figure 5 As shown, the direction of the feed point 140 needs to be adjusted to Figure 5 From 40 degrees north-west (point A) to 80 degrees north-east (point B).

[0102] like Figure 6 The figure shows the gain diagram of the antenna receiving the 1.2 GHz positioning signal. When ensuring the reception effect of the 1.2 GHz positioning signal, it is necessary to satisfy that the antenna receives the right circularly polarized signal better than the left circularly polarized signal. Figure 6 As shown, the direction of the feed point 140 needs to be adjusted to Figure 6 From 70 degrees north-west (point C) to 90 degrees north-east (point D).

[0103] according to Figure 5 and Figure 6 It is obvious that in order to ensure the reception effect of the 1.6 GHZ positioning signal and the 1.2 GHZ positioning signal at the same time, when the position of the feed point 140 is adjusted by rotating the two radiators in the related art, the positions of the two radiators will overlap, which cannot be satisfied at the same time. Figure 7 As shown in the figure, the return losses of the two positioning signals are very different, that is, only one positioning signal can be received. Figure 7 As shown, it can be clearly seen that the reception effect of the 1.6GHZ positioning signal is better than that of the 1.2GHZ positioning signal. The reception effects of the two positioning signals are quite different and it is impossible to guarantee the reception effects of both positioning signals at the same time.

[0104] However, in the embodiment of the present application, through a first radiator 111, the position of the feed point 140 can be adjusted to the direction of 40 degrees north-west (point A) to 80 degrees north-east (point B), so as to ensure the reception effect of the 1.6GHZ positioning signal and the 1.2GHZ positioning signal at the same time, so as to achieve optimal reception of the 1.6GHZ positioning signal and the 1.2GHZ positioning signal.

[0105] It should be noted that, for the description of the same contents in this embodiment as those in other embodiments, reference can be made to the description in other embodiments and will not be repeated here.

[0106] The embodiment of the present application provides a dual-frequency antenna, which receives signals of two different frequencies by electrically connecting the first radiator to the first tuning module and the equivalent length of the first radiator being 1 / 4 of the wavelength corresponding to the frequency between the first frequency and the second frequency. It is not necessary to separately set two first radiators of different lengths to receive signals of two different frequencies, which simplifies the internal structure of the dual-frequency antenna, reduces the complexity of the dual-frequency antenna, and further reduces the space occupied by the dual-frequency antenna in the electronic device. Moreover, the shape of the radiator is an arc segment, which reduces the size of the dual-frequency antenna, and the original structure of the electronic device can be used to integrate the dual-frequency antenna into the electronic device. The dual-frequency antenna can be integrated into the electronic device without remodeling the internal structure of the electronic device, saving costs.

[0107] Based on the above embodiments, the embodiments of the present application provide an electronic device, such as Figure 8 As shown, the electronic device 200 includes a housing, a position determination device 210 and the above-mentioned dual-frequency antenna 100, the housing includes a bottom wall 220 and a side wall 230 connected to the bottom wall 220, and the dual-frequency antenna 100 is arranged on the side wall 230;

[0108] The location determination device 210 is electrically coupled to the dual-frequency antenna 100 and is configured to receive a first signal of a first frequency and a second signal of a second frequency, and determine the current geographic location of the electronic device 200 according to the first signal and the second signal.

[0109] Among them, the dual-frequency antenna 100 is arranged in the side wall 230, which can reduce the space occupied by the dual-frequency antenna 100 in the electronic device 200 and improve the space utilization inside the electronic device 200.

[0110] It should be noted that the receiving performance of the dual-band antenna 100 of the electronic device 200 in a specific scenario can be specifically improved by adjusting the direction of the feed point 140 located on the bottom wall 220; moreover, since the dual-band antenna 100 has a simple structure, when it is integrated inside the electronic device 200, the cost can be reduced and subsequent maintenance can be facilitated.

[0111] In other embodiments of the present application, the electronic device 200 may be a wearable device or a terminal device.

[0112] In a feasible implementation, the wearable device may be one of devices including a smart helmet, smart glasses, smart masks, smart watches, smart bracelets and smart shoes; the terminal device may be a mobile phone.

[0113] In other embodiments of the present application, Figure 8 As shown, the position determination device 210 can be integrated inside the bottom wall 220 .

[0114] When the radiator 110 in the dual-band antenna 100 is in the shape of an arc segment, it does not need to occupy the entire annular side wall 230 , so the size of the electronic device 200 can be made smaller, thereby improving the portability of the electronic device 200 .

[0115] It should be noted that, for the description of the same contents in this embodiment as those in other embodiments, reference can be made to the description in other embodiments and will not be repeated here.

[0116] An embodiment of the present application provides an electronic device, which includes a housing, a position determining device, and a dual-frequency antenna. The housing includes a bottom wall and a side wall connected to the bottom wall, and the dual-frequency antenna is arranged on the side wall; wherein the position determining device is electrically coupled to the dual-frequency antenna, and is configured to receive a first signal and a second signal, and determine the current geographical location of the electronic device based on the first signal and the second signal; in this way, only a first radiator is connected to a first tuning module, and the equivalent length of the first radiator is 1 / 4 of the wavelength corresponding to the frequency between the first frequency and the second frequency, so that the first signal and the second signal can be received, and there is no need to separately set two independent radiators inside the dual-frequency antenna to receive the first signal and the second signal, thereby reducing the complexity of the dual-frequency antenna and reducing the size of the dual-frequency antenna. When the dual-frequency antenna is integrated inside the electronic device, the space occupied by the dual-frequency antenna on the electronic device is also reduced.

[0117] Based on the foregoing embodiments, in other embodiments of the present application, such as Figure 8 As shown, the electronic device 200 includes a housing, a position determination device 210 and the above-mentioned dual-frequency antenna 100, the housing includes a bottom wall 220 and a side wall 230 connected to the bottom wall 220, and the dual-frequency antenna 100 is arranged on the side wall 230;

[0118] The location determination device 210 is electrically coupled to the dual-frequency antenna 100 , and is configured to receive the first signal and the second signal, and determine the current geographic location of the electronic device 200 according to the first signal and the second signal.

[0119] In other embodiments of the present application, the feed point 140 is located at 7 to 9 o'clock or 9 to 11 o'clock of the bottom wall 220 .

[0120] In one possible implementation, Fig. 9 As shown, the shape of the radiator in the dual-frequency antenna 100 is an arc segment as an example, and the feed point 140 is located at the 11 o'clock direction of the bottom wall 220. When the feed point 140 is located at the 11 o'clock direction of the bottom wall 220, as shown in FIG. Fig.10 As shown, it can be seen that the return loss of the 1.2 GHZ positioning signal and the 1.6 GHZ positioning signal are not much different, that is, the receiving effect of the 1.2 GHZ positioning signal and the 1.6 GHZ positioning signal is not much different, and the receiving effect of the two positioning signals with different frequencies is achieved at the same time; wherein, when the radiator also includes the second radiator 112, such as Fig.10 As shown, when the position of the feed point 140 relative to the bottom wall 220 is adjusted, the effect of the second radiator 112 receiving two communication signals can also be guaranteed. The position pointed by arrow 1 represents a 1.2 GHZ positioning signal, the position pointed by arrow 2 represents a 1.6 GHZ positioning signal, the position pointed by arrow 3 represents a Bluetooth signal, and the position pointed by arrow 4 represents a WIFI signal.

[0121] In one possible implementation, Fig.11 As shown, the shape of the radiator in the dual-frequency antenna 100 is an arc segment as an example, and the feed point 140 is located at the 7 o'clock direction of the bottom wall 220. When the feed point 140 is located at the 7 o'clock direction of the bottom wall 220, as shown in FIG. Fig.12 As shown, it can be seen that the return loss of the 1.2 GHZ positioning signal and the 1.6 GHZ positioning signal is not much different, that is, the receiving effect of the 1.2 GHZ positioning signal and the 1.6 GHZ positioning signal is not much different, and the receiving effect of the two positioning signals of different frequencies is achieved at the same time; wherein, when the radiator also includes the second radiator 112, such as Fig.12 As shown, when the position of the feed point 140 relative to the bottom wall 220 is adjusted, the effect of the second radiator 112 receiving two communication signals can also be guaranteed. The position pointed by arrow 1 represents a 1.2 GHZ positioning signal, the position pointed by arrow 2 represents a 1.6 GHZ positioning signal, the position pointed by arrow 3 represents a Bluetooth signal, and the position pointed by arrow 4 represents a WIFI signal.

[0122] Among them, the dual-frequency antenna 100 can be a monopole antenna, an inverted-F antenna (IFA), a loop antenna (i.e., a loop antenna) and other types of antennas. In practical applications, the type of the dual-frequency antenna can be flexibly set according to the application scenario. The specific type of the dual-frequency antenna is not limited in the embodiment of the present application.

[0123] In the description of the present application, the descriptions with reference to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", "some examples" or "other embodiments of the present application" etc. are intended to mean that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In the present application, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0124] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" or "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0125] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one feature. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0126] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0127] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0128] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0129] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A dual-frequency antenna, characterized in that: The dual-frequency antenna comprises: A radiator, a feeding device and a first tuning module; The radiator comprises a first radiator, a feeding point is arranged on the radiator, and the first radiator is electrically connected to the feeding device via the feeding point; The first radiator is electrically connected to the first tuning module, and is used to receive a first signal of a first frequency and a second signal of a second frequency; The equivalent length of the first radiator is 1 / 4 of the wavelength corresponding to the frequency between the first frequency and the second frequency.

2. The dual-band antenna according to claim 1, characterized in that: The first signal is a first positioning signal, and the second signal is a second positioning signal.

3. The dual-band antenna according to claim 2, characterized in that: The radiator also includes: A second radiator, wherein the second radiator is connected to the first radiator, and the first radiator and the second radiator receive signals of different types.

4. The dual-band antenna according to claim 3, characterized in that: The second radiator is used to receive WIFI signals and / or Bluetooth signals.

5. The dual-band antenna according to claim 4, characterized in that: The shape of the radiator is a circular arc segment.

6. The dual-frequency antenna according to any one of claims 1 to 5, characterized in that: The first radiator is connected to the first tuning module through the feeding device.

7. The dual-band antenna according to claim 6, characterized in that: The dual-frequency antenna also includes: A second tuning module, wherein the second tuning module is connected to one end of the first radiator; and / or, A third tuning module is connected to the first radiator through a ground terminal.

8. An electronic device, characterized in that: The electronic device comprises a housing, a position determination device and the dual-frequency antenna according to any one of claims 1 to 7, the housing comprises a bottom wall and a side wall connected to the bottom wall, and the dual-frequency antenna is arranged on the side wall; The location determining device is electrically coupled to the dual-frequency antenna, and is configured to receive a first signal of a first frequency and a second signal of a second frequency, and determine the current geographic location of the electronic device based on the first signal and the second signal.

9. The electronic device according to claim 8, characterized in that: The feeding point is located at 7 to 9 o'clock or 9 to 11 o'clock of the bottom wall.

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