WO2023273493A1

WO2023273493A1 - Antenna apparatus and electronic device

Info

Publication number: WO2023273493A1
Application number: PCT/CN2022/085343
Authority: WO
Inventors: 林思颖; 王旅
Original assignee: 深圳市锐尔觅移动通信有限公司
Priority date: 2021-07-02
Filing date: 2022-04-06
Publication date: 2023-01-05
Also published as: CN113410623B; CN113410623A

Abstract

An antenna apparatus and an electronic device. A radiator of the antenna apparatus is electrically connected to a feed source, and a tuning module is electrically connected to the radiator. In a first state, the tuning module tunes the radiator to cause the radiator to form a first radiation branch, and the first radiation branch transmits a first wireless signal. In the second state, the first radiation branch transmits a second wireless signal, and the tuning module tunes the radiator to cause the first radiation branch to transmit a third wireless signal different from the first wireless signal.

Description

Antenna devices and electronic equipment

This application claims the priority of the Chinese patent application with the application number 202110751341.2 and the title of the invention "antenna device and electronic equipment" submitted to the China Patent Office on July 02, 2021, the entire contents of which are incorporated by reference in this application.

technical field

The present application relates to the technical field of communications, and in particular to an antenna device and electronic equipment.

Background technique

With the development of communication technology, electronic devices such as smart phones can realize more and more functions, the communication modes of electronic devices are also more diversified, and consumers have higher and higher requirements for communication quality of electronic devices.

Contents of the invention

The present application provides an antenna device and electronic equipment, which can ensure the performance of the antenna after being held by a user.

In the first aspect, the embodiment of the present application provides an antenna device, including:

feed;

a radiator electrically connected to the feed; and

a tuning module, electrically connected to the radiator; in a first state, the tuning module is used to tune the radiator so that the radiator forms a first radiation branch, and the first radiation branch used to transmit a first wireless signal; in a second state, the first radiation branch is used to transmit a second wireless signal, and the second wireless signal is different from the first wireless signal;

The tuning module is further configured to tune the first radiating stub in the second state, so that the first radiating stub transmits a third wireless signal, and the third wireless signal is different from the first radiating stub. a wireless signal and the second wireless signal.

In a second aspect, the present application provides an electronic device, including an antenna device, and the antenna device includes:

feed;

a radiator electrically connected to the feed; and

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of a first structure of an antenna device provided by an embodiment of the present application.

FIG. 2 is a schematic diagram of a first structure of the antenna device shown in FIG. 1 for transmitting wireless signals.

FIG. 3 is an S-parameter curve diagram of the antenna device shown in FIG. 2 in a first state.

FIG. 4 is a comparison diagram of S-parameter curves of the antenna device shown in FIG. 2 in the first state and the second state.

FIG. 5 is a graph of the tuned S-parameters of the antenna device shown in FIG. 2 in a second state.

FIG. 6 is a schematic diagram of a second structure of the antenna device shown in FIG. 1 for transmitting wireless signals.

FIG. 7 is an S-parameter curve diagram of the antenna device shown in FIG. 6 in a first state.

FIG. 8 is a comparison diagram of S-parameter curves of the antenna device shown in FIG. 6 in the first state and the second state.

FIG. 9 is a graph of the tuned S-parameters of the antenna device shown in FIG. 6 in a second state.

FIG. 10 is a schematic diagram of a second structure of the antenna device provided by the embodiment of the present application.

FIG. 11 is a schematic diagram of a first structure of an electronic device provided by an embodiment of the present application.

FIG. 12 is a schematic diagram of a second structure of an electronic device provided by an embodiment of the present application.

detailed description

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings 1 to 12 in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of this application.

Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The occurrences of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is understood explicitly and implicitly by those skilled in the art that the embodiments described herein can be combined with other embodiments.

An embodiment of the present application provides an antenna device, which can implement a wireless communication function. For example, the antenna device can transmit Wireless Fidelity (Wi-Fi) signals, Global Positioning System (GPS) signals, third-generation mobile communication technology (3th-Generation, 3G), fourth-generation Mobile communication technology (4th-Generation, referred to as 4G), fifth-generation mobile communication technology (5th-Generation, referred to as 5G), near field communication (Near field communication, referred to as NFC) signal, Bluetooth signal, ultra-wideband communication signal, etc.

Please refer to FIG. 1 , which is a schematic structural diagram of a first type of antenna device provided by an embodiment of the present application. The antenna device 100 may include a feed 110 , a radiator 120 and a tuning module 130 .

The feed source 110 is electrically connected to the radiator 120, and the feed source 110 can provide an excitation signal to the radiator 120, so as to stimulate the radiator 120 to transmit wireless signals. The feed source 110 can also receive wireless signals transmitted by the radiator 120 , and with the cooperation of the feed source 110 and the radiator 120 , the antenna device 100 can both transmit and receive wireless signals.

The radiator 120 includes a first end 121 and a second end 122 oppositely arranged, the first end 121 and the second end 122 can be two radiation free ends of the radiator 120, and the radiator 120 can pass through the first end 121 and the second End 122 is separate from other components of antenna assembly 100 . The radiator 120 may be provided with a feed point 123 and a ground point 124, the feed point 123 and the ground point 124 may be located between the first end 121 and the second end 122, and the feed point 123 may be electrically connected to the feed source 110 , the feed source 110 may be electrically connected to the radiator 120 through the feed point 123 . The ground point 124 can be electrically connected to the ground plane to realize the grounding of the radiator 120 .

It can be understood that the ground point 124 may be disposed near the end of the radiator 120 , for example, the ground point 124 may be disposed near the first end 121 or the second end 122 . Disposing the ground point 124 at the end of the radiator 120 can make the radiator 120 have a longer radiation branch.

The tuning module 130 can be electrically connected to the radiator 120 . For example, one or more electrical connection points located between the first end 121 and the second end 122 may also be provided on the radiator 120, and the tuning module 130 may be electrically connected to the radiator 120 through the one or more electrical connection points. connect.

It can be understood that the tuning module 130 may include, but not limited to, any series and parallel combination of one or more components such as resistors, inductors, capacitors, switches, etc., and the tuning module 130 can change the electrical connection of the radiator 120. Resistance, capacitance, and inductance, so that the tuning module 130 can tune the wireless signal transmitted by the radiator 120 .

Wherein, please refer to FIG. 2 in conjunction with FIG. 1 . FIG. 2 is a schematic diagram of a first structure of the antenna device shown in FIG. 1 for transmitting wireless signals. When the antenna device 100 is in the first state, the tuning module 130 can tune the radiator 120 so that the radiator 120 can form the first radiation branch 101, and the first radiation branch 101 can transmit the first radio frequency in the first state. Signal.

It can be understood that the first state may be a normal working state of the antenna device 100 . The antenna device 100 can form a first radiation branch 101 in a normal working state.

The tuning module 130 can be electrically connected to one or more electrical connection points between the first end 121 and the second end 122 of the radiator 120 . For example, as shown in FIGS. 1 and 2 , the radiator 120 may be provided with a first electrical connection point 125 and a second electrical connection point 126 between the first end 121 and the second end 122. The first electrical connection point 125 can be located between the feed point 123 and the second end 122, the second electrical connection point 126 can be located between the feed point 123 and the first end 121, the tuning module 130 can be connected to the first electrical connection point 125, the second The electrical connection point 126 is electrically connected to tune the radiator 120 .

It should be noted that the above is only an exemplary example of the electrical connection of the tuning module 130 to the radiator 120, the solution of the embodiment of the present application is not limited thereto, and other solutions in which the tuning module 130 can be electrically connected to the radiator 120 All are within the scope of protection of the embodiments of the present application.

It can be understood that, as shown in FIG. 2 , the radiation branch of the radiator 120 between the feeding point 123 and the second end 122 may form the first radiation branch 101 . When the feed source 110 provides an excitation signal to the radiator 120, the first radiation stub 101 can transmit a first wireless signal.

When the antenna device 100 is in the first state, the tuning module 130 can also tune the radiator 120 so that the radiator 120 forms the second radiation branch 102, and the second radiation branch 102 can transmit the third radio frequency in the first state. Signal.

It can be understood that, as shown in FIG. 2 , the radiation branch of the radiator 120 between the feeding point 123 and the first end 121 may form the second radiation branch 102 . When the feed source 110 provides an excitation signal to the radiator 120, the second radiation stub 102 can transmit a third wireless signal in the first state.

It can be understood that the first wireless signal may be, but not limited to, a low-frequency signal, an intermediate-frequency signal, or a high-frequency signal. The third wireless signal may also be, but not limited to, a low frequency signal, an intermediate frequency signal or a high frequency signal. The first wireless signal may be different from the third wireless signal, for example, the frequency range of the first wireless signal may be different from the frequency range of the third wireless signal.

Please refer to FIG. 3. FIG. 3 is an S-parameter curve diagram of the antenna device shown in FIG. 2 in the first state. The multiple curves in FIG. 3 are multiple S-parameter curves generated by the tuning module 130 for different tuning operations. It can be seen from FIG. 3 that the frequency of the first wireless signal transmitted by the first radiation stub 101 in the first state may be 1300 MHz to 1550 MHz. The frequency of the third wireless signal transmitted by the second radiating branch 102 in the first state may be 824MHz to 880MHz, thus, in the first state, the antenna device 100 of the embodiment of the present application may transmit the frequency bands of 824MHz to 880MHz and 1300MHz to 1550MHz The antenna device 100 in the embodiment of the present application can perform Global System for Mobile Communications (GSM for short), Wideband Code Division Multiple Access (WCDMA for short), Long Term Evolution voice bearer communication ( Voice over Long-Term Evolution, referred to as VOLTE) and other voice/data calls.

Certainly, the frequencies of the first wireless signal and the third wireless signal are not limited to the descriptions in the foregoing embodiments, and the embodiment of the present application does not limit specific frequency bands of the first wireless signal and the third wireless signal.

It can be understood that the forms of the first radiation branch 101 and the second radiation branch 102 are not limited to the above description, other forms of radiation branches that can transmit the first wireless signal, forms of the radiation branch that can transmit the third wireless signal It can also meet the requirements of the embodiment of the present application, which is not specifically limited in the embodiment of the present application.

In the antenna device 100 of the embodiment of the present application, in the first state of normal operation, the first radiating branch 101 of the radiator 120 can transmit the first wireless signal, the second radiating branch 102 can transmit the third wireless signal, and the radiator 120 has With a wider transmission frequency band, the antenna device 100 can achieve a miniaturized design, and the antenna device 100 can also have better radiation performance.

When the antenna device 100 is held by human hands or blocked by other objects, the radiation performance of the antenna device 100 will be greatly reduced. In the related art, when the performance of the antenna device 100 is blocked and the performance is degraded, the wireless signal is often transmitted by switching to another antenna device 100 that is far away, but the switched antenna device 100 may have a higher SAR value. The switched antenna device 100 is detrimental to the user's health.

Based on the above description, when the antenna device 100 is in the second state, the radiation performance of the first radiating stub 101 and the second radiating stub 102 will decrease. At this time, the first wireless signal transmitted by the first radiating stub 101 will have a frequency deviation. Due to the shift phenomenon, the first radiation stub 101 in the second state will transmit the second wireless signal. The third wireless signal originally transmitted by the second radiating stub 102 also has a frequency shift phenomenon, and the second radiating stub 102 in the second state transmits the seventh wireless signal.

It can be understood that the second state may be an abnormal working state of the antenna device 100 , for example, the second state may be a state in which the antenna device 100 is covered or held. At this time, the second wireless signal transmitted by the first radiating branch 101 is not the preferred transmission frequency band of the antenna device 100, and the seventh wireless signal transmitted by the second radiating branch 102 is not the preferred transmission frequency band of the antenna device 100. Radiation performance will be significantly degraded.

For example, please refer to FIG. 2 and FIG. 4 . FIG. 4 is a comparison diagram of S-parameter curves of the antenna device shown in FIG. 2 in the first state and the second state. As shown in FIG. 4 , the curve S1 is the S-parameter curve of the antenna device 100 in the first state, and the curve S2 is the S-parameter curve of the antenna device 100 in the second state. Comparing the curve S1 and the curve S2, it can be seen that when the antenna device 100 is in the second state of being covered and held, the frequency band of the wireless signal transmitted by the first radiating branch 101 can be shifted by about 200MHz-400MHz, for example, when the first wireless When the frequency of the signal is 1300 MHz to 1550 MHz, the frequency of the second wireless signal after the frequency offset is 1010 MHz to 1260 MHz. The frequency band of the wireless signal transmitted by the second radiating branch 102 can also be shifted by approximately 200MHz-400MHz. For example, when the frequency of the third wireless signal is 824MHz to 880MHz, the frequency of the shifted seventh wireless signal is 614MHz to 670MHz.

It can be understood that when the antenna device 100 is in the second state of being shielded and held, the frequency band of the wireless signal after the frequency deviation of the first radiating branch 101 and the second radiating branch 102 may be lower than that of the wireless signal before the frequency deviation. The frequency band, that is, the first radiation stub 101 and the second radiation stub 102 may be shifted towards low frequency signals.

Wherein, when the frequency deviation occurs in the wireless signal transmitted by the antenna device 100 in the second state, the tuning module 130 can also tune the radiator 120 so that the first radiation branch 101 is tuned from transmitting the second wireless signal to transmitting the third wireless signal. wireless signal.

For example, please refer to FIG. 5 . FIG. 5 is a graph of the tuned S-parameters of the antenna device shown in FIG. 2 in the second state. The multiple curves in FIG. 5 are multiple S parameter curves generated by the antenna device 100 after the tuning module 130 performs different tuning operations in the second state. From the curve S3 in FIG. 5, it can be seen that in the second state, the first radiation The stub 101 can transmit wireless signals of 824MHz to 960MHz after being tuned. Since wireless signals from 824MHz to 960MHz are also in voice/data communication frequency bands such as GSM, WCDMA, and VOLTE, the tuned antenna device 100 can still meet voice/data requirements, and the antenna device 100 has better radiation performance.

Wherein, after the frequency deviation occurs in the wireless signal transmitted by the antenna device 100 in the second state, the tuning module 130 can also tune the radiator 120 so that the second radiating branch 102 is tuned from transmitting the seventh wireless signal to transmitting a different The wireless signal of the seventh wireless signal.

It can be understood that, in the second state, the frequency band of the wireless signal transmitted by the first radiation branch 101 and the second radiation branch 102 after tuning may be lower than that transmitted by the first radiation branch 101 and the second radiation branch 102 after frequency deviation The frequency band of the wireless signal, that is, the first radiating branch 101 and the second radiating branch 102 can continue to be tuned toward the low frequency signal.

Of course, in the second state, the frequency band of the wireless signal transmitted by the first radiating branch 101 and the second radiating branch 102 after tuning may also be higher than that of the wireless signal transmitted by the first radiating branch 101 and the second radiating branch 102 after frequency deviation. The frequency band of the signal, that is, the first radiating branch 101 and the second radiating branch 102 may continue to be tuned towards the high-frequency signal. The frequency band tuned by the tuning module 130 may be designed according to the frequency band to be transmitted by the antenna device 100 , which is not limited in this embodiment of the present application.

In the antenna device 100 of the embodiment of the present application, when the frequency deviation of the first radiation branch 101 from transmitting the first wireless signal to the second wireless signal is in the second state, the radiation performance of the antenna device 100 is degraded, and the tuning module 130 can adjust the first The radiation stub 101 is tuned so that the first radiation stub 101 transmits a third wireless signal different from the second wireless signal. On the one hand, the antenna device 100 does not need to perform antenna switching, resulting in a higher SAR value. On the other hand, The antenna device 100 can also ensure better radiation performance to meet communication requirements.

Moreover, in the antenna device 100 of the embodiment of the present application, the frequency band of the wireless signal transmitted after tuning by the first radiating branch 101 and the second radiating branch 102 is lower than the frequency band of the wireless signal after the frequency offset, and the tuning module 130 can move towards the low frequency band For signal tuning, compared with the solution of re-correcting the wireless signal after the frequency deviation, it is easier to tune out the resonance by continuing to tune towards the low-frequency band signal in the embodiment of the present application, which can reduce the difficulty of tuning and the power consumption of tuning.

Wherein, please refer to FIG. 6 , which is a schematic diagram of a second structure of the antenna device shown in FIG. 1 for transmitting wireless signals. In the first state, the tuning module 130 can also tune the radiator 120 so that the radiator 120 can form the third radiation branch 103 , and the third radiation branch 103 can transmit the fourth wireless signal.

In the first state, the tuning module 130 can also tune the radiator 120 so that the radiator 120 forms the fourth radiation branch 104, and the fourth radiation branch 104 can transmit the sixth wireless signal.

As shown in FIG. 6, a first electrical connection point 125, a second electrical connection point 126 and a third electrical connection point 127 located between the first end 121 and the second end 122 may also be provided on the radiator 120, the first The electrical connection point 125 can be located between the feed point 123 and the second end 122, the second electrical connection point 126 can be located between the feed point 123 and the first end 121, and the third electrical connection point 127 can also be located at the feed point Between 123 and the first end 121 , the third electrical connection point 127 can also be located between the feeding point 123 and the second electrical connection point 126 .

It can be understood that when the tuning module 130 is electrically connected to the radiator 120, for example, when the tuning module 130 is electrically connected to the first electrical connection point 125 and the third electrical connection point 127 respectively, the first electrical connection point 125 to the second electrical connection point The radiation branch between the two ends 122 can form the third radiation branch 103 to transmit the fourth wireless signal; the radiation branch between the third electrical connection point 127 and the second end 122 can form the fourth radiation branch 104 to transmit the fourth wireless signal. Six wireless signals.

It can be understood that the fourth wireless signal may be, but not limited to, a low-frequency signal, an intermediate-frequency signal, or a high-frequency signal. The sixth wireless signal may also be, but not limited to, a low-frequency signal, an intermediate-frequency signal or a high-frequency signal. The fourth wireless signal may be different from the sixth wireless signal, for example, the frequency range of the fourth wireless signal may be different from the frequency range of the sixth wireless signal.

For example, please refer to FIG. 7. FIG. 7 is an S parameter curve diagram of the antenna device shown in FIG. 6 in the first state. The multiple curves in FIG. 7 are multiple S parameters generated by the tuning module 130 for different tuning operations. From the curve, it can be known from FIG. 7 that the frequency of the fourth wireless signal generated by the third radiation branch 103 may be 2300 MHz to 2690 MHz. The frequency of the sixth wireless signal generated by the fourth radiating branch 104 may be 1710MHz to 2170MHz. Therefore, in the first state, the antenna device 100 of the embodiment of the present application may transmit wireless signals in the frequency band of 1710MHz to 2690MHz. The antenna device 100 can perform voice/data calls such as GSM, WCDMA, and VOLTE.

Of course, the frequencies of the fourth wireless signal and the sixth wireless signal are not limited to the descriptions in the foregoing embodiments, and the embodiment of the present application does not limit specific frequency bands of the fourth wireless signal and the sixth wireless signal.

In the antenna device 100 of the embodiment of the present application, in the first state of normal operation, the third radiating branch 103 of the radiator 120 can transmit the fourth wireless signal, the fourth radiating branch 104 can transmit the sixth wireless signal, and the radiator 120 has With a wider transmission frequency band, the antenna device 100 can achieve a miniaturized design, and the antenna device 100 can also have better radiation performance.

When the antenna device 100 is in the second state, the radiation performance of the third radiating branch 103 and the fourth radiating branch 104 will decrease. The third radiation branch 103 in the second state will transmit the fifth wireless signal; the sixth wireless signal originally transmitted by the fourth radiation branch 104 will also have a frequency offset phenomenon, and the fourth radiation branch 104 in the second state will transmit the eighth wireless signal .

It can be understood that, in the second state, the fifth wireless signal transmitted by the third radiating branch 103 is not the preferred transmission frequency band of the antenna device 100, and the eighth wireless signal transmitted by the fourth radiating branch 104 is not the preferred transmission frequency band of the antenna device 100. In the transmission frequency band, the radiation performance of the antenna device 100 will drop significantly.

For example, please refer to FIG. 6 and also refer to FIG. 8 . FIG. 8 is a comparison diagram of S-parameter curves of the antenna device shown in FIG. 6 in the first state and the second state. As shown in FIG. 8 , the curve S4 is the S-parameter curve of the antenna device 100 in the first state, and the curve S5 is the S-parameter curve of the antenna device 100 in the second state. Comparing the curve S4 and the curve S5, it can be seen that when the antenna device 100 is in the second state of being blocked and held, the frequency band of the wireless signal transmitted by the third radiating branch 103 can be shifted by about 200MHz-400MHz, for example, when the fourth wireless When the frequency of the signal is 2300 MHz to 2690 MHz, the frequency of the fifth wireless signal after the frequency offset is 1900 MHz to 2250 MHz. The frequency band of the wireless signal transmitted by the fourth radiating branch 104 can also be shifted by about 200MHz-400MHz. For example, when the frequency of the sixth wireless signal is 1710MHz to 2170MHz, the frequency of the eighth wireless signal after frequency offset is 1200MHz to 1650MHz.

It can be understood that when the antenna device 100 is in the second state of being blocked and held, the frequency band of the wireless signal after the frequency offset of the third radiating branch 103 and the fourth radiating branch 104 may be lower than that of the wireless signal before the frequency offset. The frequency band, that is, the third radiating branch 103 and the fourth radiating branch 104 may be shifted toward low frequency signals.

Wherein, when the frequency deviation occurs in the wireless signal transmitted by the antenna device 100 in the second state, the tuning module 130 can also tune the radiator 120 so that the third radiating branch 103 is tuned from transmitting the fifth wireless signal to transmitting the sixth wireless signal. wireless signal.

For example, please refer to FIG. 9 . FIG. 9 is a graph of the tuned S-parameters of the antenna device shown in FIG. 6 in the second state. The multiple curves in FIG. 9 are multiple S parameter curves generated by the antenna device 100 after the tuning module 130 performs different tuning operations in the second state. From the curve S6 in FIG. 9, it can be seen that in the second state, the third radiation The stub 103 can transmit wireless signals of 1710MHz to 2170MHz after being tuned. Since wireless signals from 1710MHz to 2170MHz are also in voice/data communication frequency bands such as GSM, WCDMA, and VOLTE, the tuned antenna device 100 can still meet voice/data requirements, and the antenna device 100 has better radiation performance.

It can be understood that, after the frequency deviation occurs in the wireless signal transmitted by the antenna device 100 in the second state, the tuning module 130 can also tune the radiator 120 so that the fourth radiating branch 104 is tuned from transmitting the eighth wireless signal to transmitting the eighth wireless signal. A wireless signal different from the eighth wireless signal.

It can be understood that, in the second state, the frequency band of the wireless signal transmitted by the third radiating branch 103 and the fourth radiating branch 104 after tuning may be lower than that transmitted by the third radiating branch 103 and the fourth radiating branch 104 after frequency deviation The frequency band of the wireless signal, that is, the third radiating branch 103 and the fourth radiating branch 104 can continue to be tuned towards the low frequency direction.

It should be noted that, in the second state, the tuning module 130 of the antenna device 100 tunes the first radiating branch 101, the second radiating branch 102, the third radiating branch 103, and the fourth radiating branch 104, except for low-frequency signal In addition to tuning, it is also possible to tune towards high frequencies. Any frequency band that can ensure the communication requirements of the antenna device 100 after tuning by the tuning module 130 can be within the protection scope of the embodiment of the present application, and the embodiment of the present application does not limit the frequency band of the wireless signal tuned by the tuning module 130 .

In the antenna device 100 of the embodiment of the present application, when the frequency deviation of the third radiation branch 103 from the fourth wireless signal to the fifth wireless signal is transmitted in the second state, the radiation performance of the antenna device 100 is degraded, and the tuning module 130 can adjust the frequency of the third wireless signal. The radiation stub 103 is tuned so that the third radiation stub 103 transmits a sixth wireless signal different from the fifth wireless signal. On the one hand, the antenna device 100 does not need to perform antenna switching, resulting in a higher SAR value. On the other hand, The antenna device 100 can also ensure better radiation performance to meet communication requirements.

Based on the structure of the antenna device 100 described above, please refer to FIG. 10 , which is a schematic diagram of a second structure of the antenna device provided by the embodiment of the present application. The tuning module 130 may include a first tuning circuit 131 , a second tuning circuit 132 and a third tuning circuit 133 .

The first tuning circuit 131 can be electrically connected to the first electrical connection point 125 of the radiator 120 . The second tuning circuit 132 can be electrically connected to the second electrical connection point 126 of the radiator 120 . The third tuning circuit 133 can be electrically connected to the third electrical connection point 127 of the radiator 120 .

It can be understood that the first tuning circuit 131 , the second tuning circuit 132 , and the third tuning circuit 133 may be, but not limited to, include any series and parallel combination of one or more resistors, inductors, capacitors, switches and other components.

It can be understood that the first tuning circuit 131 , the second tuning circuit 132 and the third tuning circuit 133 may include one or more branches, so as to realize the tuning of the radiator 120 .

Exemplarily, as shown in FIG. 10, the first tuning circuit 131 may include a first branch 1311, a second branch 1312, a third branch 1313, a fourth branch 1314, and a first switch 1315. The first switch 1315 can be a single-pole four-throw switch (SP4T), one end of the first switch 1315 can be connected to the ground plane to achieve grounding, and the other end of the first switch 1315 can be connected to the first branch 1311, the second branch 1312, the third branch One of the road 1313 and the fourth branch 1314 is connected to ground one of the branches.

It can be understood that the first branch 1311 may include a first inductor L1, the second branch 1312 may include a first resistor R1, the third circuit may include a first capacitor C1, and the fourth branch 1314 may be an NC branch ( empty branch). Wherein, the inductance of the first inductor L1 may be 5.6nh (nanohenry), the resistance of the first resistor R1 may be 0Ω (ohm), and the capacitance of the first capacitor C1 may be 0.5pF (picofarad).

The second tuning circuit 132 may include a fifth branch 1321, a sixth branch 1322, a seventh branch 1323, an eighth branch 1324, and a second switch 1325, which may be a single-pole four-throw switch (SP4T) , one end of the second switch 1325 can be connected to the ground plane to achieve grounding, and the other end of the second switch 1325 can be connected to the fifth branch 1321, the sixth branch 1322, the seventh branch 1323, and the eighth branch 1324. Connect one way to ground one of the branches.

It can be understood that the fifth branch 1321 may include a second inductor L2, the sixth branch 1322 may include a second resistor R2, the seventh branch 1323 may include a second capacitor C2, and the eighth circuit may include a third inductor L3 . Wherein, the inductance value of the second inductor L2 can be 15nh, the resistance value of the second resistor R2 can be 0Ω, the capacitance value of the second capacitor C2 can be 1.8pF, and the inductance value of the third inductor L3 can be 33nh.

The third tuning circuit 133 may include a ninth branch 1331, a tenth branch 1332, an eleventh branch 1333, a twelfth branch 1334 and a third switch 1335, and the third switch 1335 may be a single-pole four-throw switch ( SP4T), one end of the third switch 1335 can be connected to the ground plane to achieve grounding, and the other end of the third switch 1335 can be connected to the ninth branch 1331, the tenth branch 1332, the eleventh branch 1333, the twelfth branch One of the paths 1334 is connected to ground one of the branches.

It can be understood that the ninth branch 1331 may include a third resistor R3, the sixth branch 1322 may include a third capacitor C3, the seventh branch 1323 may include a fourth capacitor C4, and the eighth circuit may include a fourth inductor L4 . Wherein, the resistance value of the third resistor R3 can be 0Ω, the resistance value of the third capacitor can be 1.8pF, the inductance value of the fourth capacitor C4 can be 1.2pF, and the inductance value of the fourth inductor L4 can be 3.9nh.

It can be understood that the above are only exemplary examples of the first tuning circuit 131, the second tuning circuit 132, and the third tuning circuit 133 in the embodiment of the present application, and the values of the above-mentioned capacitance, resistance, and inductance are also exemplary examples. The structures of the first tuning circuit 131 , the second tuning circuit 132 , and the third tuning circuit 133 in the embodiment of the application are not limited thereto, and are not limited in the embodiment of the application.

Based on the above-mentioned structure of the tuning module 130 , the working principle of the tuning module 130 is exemplarily described below.

When the antenna device 100 is in the first state, the excitation signal fed by the feed source 110 can be transmitted from the feed point 123 to the radiator 120, and the current signal can be distributed on the entire radiator 120 at the same time. At this time, the first tuning circuit 131 can turn on the fourth branch 1314 to make the first tuning circuit 131 empty, and the second tuning circuit 132 can turn on the sixth branch 1322 and ground through a 0Ω resistor, so that the connection between the feeding point 123 and the second terminal 122 The first radiation stub 101 between them can transmit a first wireless signal, for example, 1300MHz to 1550MHz; the second radiation stub 102 between the feeding point 123 and the first end 121 can generate a third wireless signal, for example, 824MHz to 880MHz. When the antenna device 100 is in the second state and the frequency deviation occurs between the first radiating branch 101 and the second radiating branch 102, the frequency deviation of the first wireless signal to the second wireless signal may be, for example, 1010 MHz to 1260 MHz. At this time, the first tuning circuit 131 The third branch 1313 can be turned on to access a small capacitor (for example, 0.5pF), and the second tuning circuit 132 can be turned on to connect the eighth branch 1324 to an inductance (for example, 15nh), so that the tuning module 130 can connect the second wireless The signal tuning is changed to a third wireless signal, such as 824MHz to 960MHz. It can be understood that in this process, the capacitance, resistance and inductance of the first tuning circuit 131 and the second tuning circuit 132 can be improved, so that the third wireless signal can also be in the 700MHz to 787MHz frequency band to meet the low-band bandwidth coverage .

When the antenna device 100 is in the first state, the excitation signal fed by the feed source 110 can be transmitted from the feed point 123 to the radiator 120, and the current signal can be distributed on the entire radiator 120 at the same time. At this time, the second tuning circuit 132 can turn on the sixth branch 1322 and ground it through a 0Ω resistance, and the third tuning circuit 133 can turn on the ninth branch 1331 and ground it through a 0Ω resistance, so that the third electrical connection point 127 to the second end 122 The four-radiating stub 104 can transmit a sixth wireless signal, for example, 1710 MHz to 2170 MHz. It can be understood that, at this time, the radiation branch between the second electrical connection point 126 and the first end 121 can also transmit a wireless signal, for example, transmit a low-frequency wireless signal.

When the antenna device 100 is in the first state, the excitation signal fed by the feed source 110 can be transmitted from the feed point 123 to the radiator 120, and the current signal can be distributed on the entire radiator 120 at the same time. At this time, the first tuning circuit 131 can turn on the second branch 1312 and ground through a 0Ω resistor, the second tuning circuit 132 can turn on the sixth branch 1322 and ground through a 0Ω resistor, and the third tuning circuit 133 can turn on the ninth branch 1331 and pass 0Ω The resistance is grounded, so that the third radiation stub 103 between the first electrical connection point 125 and the second end 122 can transmit a fourth wireless signal, for example, 2300 MHz to 2690 MHz. It can be understood that at this time, the radiation branch between the second electrical connection point 126 and the second end 122 may also transmit a wireless signal, for example, transmit a wireless signal of an intermediate frequency or a high frequency band.

When the antenna device 100 is in the second state, the fourth wireless signal transmitted by the third radiating stub 103 may be frequency-offset to the fifth wireless signal, for example, the frequency offset is from 2300MHz to 2690MHz to 1900MHz to 2250MHz. The sixth wireless signal transmitted by the fourth radiating stub 104 may have a frequency offset to the eighth wireless signal, for example, a frequency offset from 1710 MHz to 2170 MHz to 1200 MHz to 1650 MHz. At this time, the second tuning circuit 132 can turn on the sixth branch 1322 and ground it through a 0Ω resistor, the third tuning circuit 133 can turn on the ninth branch 1331 and ground it through a 0Ω resistor, and the first tuning circuit 131 can turn on the sixth A branch 1311 is connected to the inductor, so that the tuning module 130 can tune the fifth wireless signal to the sixth wireless signal (such as the seventh frequency band), and the tuned third radiation branch 103 can be switched from 1900MHz to 2250MHz to 1710MHz To 2170MHz, complete the IF bandwidth band.

It should be noted that the above is only an exemplary example of the working principle of the tuning module 130 in the embodiment of the present application, and the specific working principle of the tuning module 130 is not limited thereto, and it can be adapted according to the radiation frequency band of the antenna device 100 adjustment, which is not limited in this embodiment of the present application.

Wherein, please refer to FIG. 10 again, the antenna device 100 of the embodiment of the present application may further include a matching circuit 140 , and the matching circuit 140 may tune and match the impedance of the excitation signal provided by the feed source 110 .

It can be understood that the matching circuit 140 may be connected in series between the feed source 110 and the radiator 120 , for example, the matching circuit 140 may be connected in series between the feed source 110 and the feeding point 123 . The matching circuit 140 may be, but not limited to, include any combination of components connected in series and in parallel, including multiple resistors, inductors, capacitors, switches, etc., to perform impedance matching.

As shown in FIG. 10 , the matching circuit 140 may include a fifth capacitor C5, a fifth inductor L5, a fourth resistor R4, a fifth resistor R5 and a sixth resistor R6, one end of the fourth resistor R4 is electrically connected to the feeding point 123, One end of the fifth capacitor C5 is electrically connected to the other end of the fourth resistor R4, the other end of the fifth capacitor C5 is grounded, one end of the fifth inductor L5 is electrically connected to the other end of the fourth resistor R4, and the other end of the fifth inductor L5 Grounding, one end of the fifth resistor R5 is electrically connected to the other end of the fourth resistor R4, the other end of the fifth resistor R5 is electrically connected to one end of the fifth inductor L5, one end of the sixth resistor R6 is electrically connected to the other end of the fifth resistor R5 The other end of the sixth resistor R6 is electrically connected to the feed source 110 .

It can be understood that the capacitance value of the fifth capacitor C5 can be 1.2pF, the inductance value of the fifth inductor L5 can be 9.1nh, the resistance value of the fourth resistor R4 can be 0Ω, the fifth resistor R5 and the sixth resistor R6 The resistance value may not be 0Ω.

It can be understood that the above is only an exemplary example of the matching circuit 140 in the embodiment of the present application, and the matching circuit 140 may also include other structures, which are not limited in the embodiment of the present application. In addition, the values of the above resistance, capacitance, and inductance are also exemplary, and the solutions of the embodiments of the present application are not limited thereto, and the embodiments of the present application are not limited thereto.

Based on the structure of the above-mentioned antenna device 100, the embodiment of the present application also provides an electronic device. The electronic device can be a smart phone, a tablet computer, etc., or a game device, an augmented reality (Augmented Reality, AR) device, a car, etc. devices, data storage devices, audio playback devices, video playback devices, notebook computers, desktop computing devices, etc.

Please refer to FIG. 11 , which is a schematic diagram of a first structure of an electronic device provided by an embodiment of the present application. The electronic device 10 includes a display screen 200 , a middle frame 300 , a circuit board 400 , a battery 500 and a rear case 600 .

The display screen 200 can be arranged on the middle frame 300 and connected to the rear case 600 through the middle frame 300 to form the display surface of the electronic device 10 . The display screen 200 is used for displaying information such as images and texts. Wherein, the display screen 200 may include a display screen 200 of a liquid crystal display (Liquid Crystal Display, LCD) or an organic light-emitting diode (Organic Light-Emitting Diode, OLED) display.

The middle frame 300 may be a thin plate or sheet structure, or a hollow frame structure. The middle frame 300 is used to provide support for the electronic devices or functional components in the electronic device 10 , so as to install the electronic devices and functional components of the electronic device 10 together. For example, structures such as grooves, protrusions, and through holes may be provided on the middle frame 300 to facilitate installation of electronic devices or functional components of the electronic device 10 . It can be understood that the material of the middle frame 300 may include metal or plastic.

The circuit board 400 may be disposed on the middle frame 300 for fixing, and the circuit board 400 is sealed inside the electronic device 10 through the rear case 600 . Wherein, the circuit board 400 may be a main board of the electronic device 10 . A feed 110 may be disposed on the circuit board 400, and the feed 110 may be electrically connected to the antenna radiator 120, so that the antenna radiator 120 can transmit wireless signals. A processor may be integrated on the circuit board 400, and one or more functional components such as an earphone jack, an acceleration sensor, a gyroscope, and a motor may also be integrated. Meanwhile, the display screen 200 may be electrically connected to the circuit board 400 so as to control the display of the display screen 200 through the processor on the circuit board 400 .

The battery 500 is disposed on the middle frame 300 , and the battery 500 is sealed inside the electronic device 10 through the rear case 600 . Meanwhile, the battery 500 is electrically connected to the circuit board 400 so that the battery 500 supplies power to the electronic device 10 . Wherein, the circuit board 400 may be provided with a power management circuit. The power management circuit is used to distribute the voltage provided by the battery 500 to various electronic devices in the electronic device 10 .

The rear case 600 is connected to the middle frame 300 . For example, the rear case 600 may be bonded to the middle frame 300 by an adhesive such as double-sided tape to achieve connection with the middle frame 300 . Wherein, the rear case 600 is used to seal the electronic devices and functional components of the electronic device 10 together with the middle frame 300 and the display screen 200 to protect the electronic devices and functional components of the electronic device 10 .

Wherein, the electronic device 10 may include the antenna device 100 in the foregoing embodiments. The antenna device 100 is disposed on the electronic device 10 .

For example, the antenna device 100 may be disposed on the casing of the electronic device 10 (ie, the surface of the electronic device 10 ). Exemplarily, the antenna device 100 can be disposed on the outer surface of the rear case 600 of the electronic device 10 or when the rear case 600 includes a metal structure, the antenna device 100 can be a part of the rear case 600; the antenna device 100 can be disposed on the electronic device 10 The antenna device 100 may be a part of the middle frame 300 when the middle frame 300 includes a metal structure part. For another example, the antenna device 100 may also be disposed inside the electronic device 10 . Exemplarily, the antenna device 100 may be but not limited to be disposed on the bottom plate of the middle frame 300 of the electronic device 10 , the circuit board 400 , a small board of the electronic device 10 , a main board, an antenna bracket of the electronic device 10 , and the like.

It should be noted that any structure that can carry the antenna device 100 can be used as the supporting part of the antenna device 100 in the embodiment of the present application, and the embodiment of the present application does not limit the specific position where the antenna device 100 is disposed on the electronic device 10 .

When the antenna device 100 is disposed on the electronic device 10 , the antenna device 100 may be located at the bottom, top or middle of the electronic device 10 , such as at the bottom, top or middle of the middle frame 300 of the electronic device 10 . Hereinafter, the antenna device 100 is located at the bottom of the electronic device 10 as an example for description. Please refer to FIG. 12 . FIG. 12 is a schematic diagram of a second structure of an electronic device provided by an embodiment of the present application.

The radiator 120 of the antenna device 100 may be located at the bottom of the electronic device 10 . For example, the radiator 120 may be disposed at the bottom of the middle frame 300 , or the radiator 120 may be a part of the bottom of the middle frame 300 . For another example, the radiator 120 may be disposed at the bottom of the antenna support, or be a part of the bottom of the antenna support.

When the radiator 120 is a part of the bottom of the middle frame 300, as shown in FIG. 300 may form the radiator 120 , at this time, the end close to the first slot 310 may be the first end 121 of the radiator 120 , and the end close to the second slot 320 may be the second end 122 of the radiator 120 .

It can be understood that when the electronic device 10 is held by the human hand, the first slot 310 or the second slot 320 is easily held by the human hand. At this time, the antenna device 100 is likely to be in the second state, and the antenna device 100 can be tuned by the tuning module 130 Tuning is performed so that the antenna assembly 100 can maintain optimal performance.

In the electronic device 10 of the embodiment of the present application, the metal branch on the middle frame 300 is used as the radiator 120 of the antenna device 100. The radiator 120 does not need to occupy an additional volume of the electronic device 10, which can save the space of the electronic device 10 and realize the antenna device 100. And miniaturization of electronic equipment 10.

It should be understood that in the description of this application, terms such as "first" and "second" are only used to distinguish similar objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the indicated technology number of features.

The antenna device and the electronic equipment provided by the embodiments of the present application have been introduced in detail above. In this paper, specific examples are used to illustrate the principle and implementation of the application. The description of the above embodiments is only used to help understand the method and core idea of the application; meanwhile, for those skilled in the art, according to the application Thoughts, specific implementation methods and application ranges all have changes. In summary, the content of this specification should not be construed as limiting the application.

Claims

An antenna device comprising:

feed;

a radiator electrically connected to the feed; and

a tuning module, electrically connected to the radiator; in a first state, the tuning module is used to tune the radiator so that the radiator forms a first radiation branch, and the first radiation branch used to transmit a first wireless signal; in a second state, the first radiation branch is used to transmit a second wireless signal, and the second wireless signal is different from the first wireless signal;

The tuning module is further configured to tune the first radiating stub in the second state, so that the first radiating stub transmits a third wireless signal, and the third wireless signal is different from the first radiating stub. a wireless signal and the second wireless signal.
The antenna device according to claim 1, wherein, in the first state, the tuning module is further configured to tune the radiator so that the radiator forms a second radiation branch, the first The two radiation stubs are used to transmit the third wireless signal.
The antenna device according to claim 2, wherein the radiator includes a first end and a second end opposite to each other, and the radiator is provided with a a feed point electrically connected to the feed source;

The tuning module is electrically connected between the first end and the second end, and the radiation branch of the radiator between the feeding point and the second end is used to form the first radiation branch .
The antenna device according to claim 3, wherein the radiation stub of the radiator between the feeding point and the first end is used to form the second radiation stub.
The antenna device according to claim 4, wherein a first electrical connection point and a second electrical connection point are further provided on the radiator, and the first electrical connection point is located between the feeding point and the second electrical connection point. Between the terminals, the second electrical connection point is located between the feed point and the first terminal; the tuning module includes:

a first tuning circuit electrically connected to said first electrical connection point; and

The second tuning circuit is electrically connected to the second electrical connection point; wherein,

In the first state, the first tuning circuit is open, and the second tuning circuit is grounded, so that the first radiation branch transmits the first wireless signal, and the second radiation branch transmits the a third wireless signal;

In the second state, the first tuning circuit is connected to a capacitor, and the second tuning circuit is connected to an inductor, so that the first radiation stub transmits the third wireless signal.
The antenna device according to claim 1, wherein, in the first state, the tuning module is used to tune the radiator so that the radiator forms a third radiation branch, the third The radiation stub is used to transmit a fourth wireless signal; in the second state, the third radiation stub is used to transmit a fifth wireless signal, and the fifth wireless signal is different from the fourth wireless signal;

The tuning module is further configured to tune the third radiating stub in the second state, so that the third radiating stub transmits a sixth wireless signal, and the sixth wireless signal is different from the first wireless signal. four wireless signals and the fifth wireless signal.
The antenna device according to claim 6, wherein, in the first state, the tuning module is further configured to tune the radiator so that the radiator forms a fourth radiation branch, the first The four radiating stubs are used to transmit the sixth wireless signal.
The antenna device according to claim 7, wherein the radiator includes a first end and a second end opposite to each other, and the radiator is provided with a a feed point, a first electrical connection point and a third electrical connection point, the first electrical connection point is located between the feed point and the second end, the third electrical connection point is located at the feed between a point and said first end;

The feed point is electrically connected to the feed source, the tuning module is respectively connected to the first electrical connection point and the third electrical connection point, and the first electrical connection point is connected to the second terminal The radial stubs in between are used to form the third radial stub.
The antenna device according to claim 8, wherein the radiation stub between the third electrical connection point and the second end is used to form a fourth radiation stub.
The antenna device according to claim 9, wherein the radiator is further provided with a second electrical connection point, and the second electrical connection point is located between the third electrical connection point and the first end; The tuning modules described above include:

a first tuning circuit electrically connected to the first electrical connection point;

a second tuning circuit electrically connected to the second electrical connection point; and

The third tuning circuit is electrically connected to the third electrical connection point; wherein,

In the first state, the first tuning circuit, the second tuning circuit and the third tuning circuit are all grounded, so that the third radiating stub transmits the fourth wireless signal;

In the second state, the second tuning circuit and the third tuning circuit are grounded, and the first tuning circuit is connected to an inductor, so that the third radiating stub transmits the sixth wireless signal.
The antenna device according to claim 10, wherein, in the first state, the second tuning circuit and the third tuning circuit are grounded, so that the fourth radiating stub transmits the sixth wireless signal .
The antenna device according to claim 1, further comprising:

A matching circuit is connected in series between the feed source and the radiator, and the matching circuit is used for tuning and matching the impedance of the excitation signal provided by the feed source.
An electronic device comprising an antenna device, the antenna device comprising:

feed;

a radiator electrically connected to the feed; and

a tuning module, electrically connected to the radiator; in a first state, the tuning module is used to tune the radiator so that the radiator forms a first radiation branch, and the first radiation branch used to transmit a first wireless signal; in a second state, the first radiation branch is used to transmit a second wireless signal, and the second wireless signal is different from the first wireless signal;

The tuning module is further configured to tune the first radiating stub in the second state, so that the first radiating stub transmits a third wireless signal, and the third wireless signal is different from the first radiating stub. a wireless signal and the second wireless signal.
The electronic device according to claim 13, wherein, in the first state, the tuning module is further configured to tune the radiator so that the radiator forms a second radiation branch, the first The two radiation stubs are used to transmit the third wireless signal.
The electronic device according to claim 14, wherein the radiator includes a first end and a second end oppositely disposed, and the radiator is provided with a a feed point electrically connected to the feed source;

The tuning module is electrically connected between the first end and the second end, and the radiation branch of the radiator between the feeding point and the second end is used to form the first radiation branch .
The electronic device according to claim 15, wherein the radiation stub of the radiator between the feeding point and the first end is used to form the second radiation stub.
The electronic device according to claim 16, wherein a first electrical connection point and a second electrical connection point are further provided on the radiator, and the first electrical connection point is located between the feeding point and the second electrical connection point. Between the terminals, the second electrical connection point is located between the feed point and the first terminal; the tuning module includes:

a first tuning circuit electrically connected to said first electrical connection point; and

The second tuning circuit is electrically connected to the second electrical connection point; wherein,

In the first state, the first tuning circuit is open, and the second tuning circuit is grounded, so that the first radiation branch transmits the first wireless signal, and the second radiation branch transmits the a third wireless signal;

In the second state, the first tuning circuit is connected to a capacitor, and the second tuning circuit is connected to an inductor, so that the first radiation stub transmits the third wireless signal.
The electronic device according to claim 13, wherein, in the first state, the tuning module is used to tune the radiator so that the radiator forms a third radiation branch, the third The radiation stub is used to transmit a fourth wireless signal; in the second state, the third radiation stub is used to transmit a fifth wireless signal, and the fifth wireless signal is different from the fourth wireless signal;

The tuning module is further configured to tune the third radiating stub in the second state, so that the third radiating stub transmits a sixth wireless signal, and the sixth wireless signal is different from the first wireless signal. four wireless signals and the fifth wireless signal.
The electronic device according to claim 18, wherein, in the first state, the tuning module is further configured to tune the radiator so that the radiator forms a fourth radiation branch, the first The four radiating stubs are used to transmit the sixth wireless signal.
The electronic device according to claim 19, wherein the radiator includes a first end and a second end opposite to each other, and the radiator is provided with a a feed point, a first electrical connection point and a third electrical connection point, the first electrical connection point is located between the feed point and the second end, the third electrical connection point is located at the feed between a point and said first end;

The feed point is electrically connected to the feed source, the tuning module is respectively connected to the first electrical connection point and the third electrical connection point, and the first electrical connection point is connected to the second terminal The radial stubs in between are used to form the third radial stub.