Antenna and electronic equipment

Abstract

The invention provides an antenna and electronic equipment, and relates to the technical field of communication. The antenna includes: a metal body; the feeding point is connected with a first position of the metal body and is connected with a first connecting point representing grounding; and the frequency response device is connected with the second position of the metal body and is connected with a second connection point representing grounding, and the frequency response device enables the metal body to receive the receiving signal of the target frequency band and transmit the transmitting signal of the target frequency band at the same time.

Description

Technical Field

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

[0002] Antenna bandwidth design is an important issue in the field of consumer terminals. As the design of terminal devices becomes more and more compact, the design space left for antennas on terminal devices becomes smaller and smaller, which brings new challenges to the design of antenna bandwidth. Summary of the invention

[0003] In view of this, the present disclosure provides an antenna and an electronic device.

[0004] According to a first aspect of the present disclosure, an antenna is provided, comprising: a metal body; a feeding point connected to a first position of the metal body and to a first connection point representing grounding; a frequency response device connected to a second position of the metal body and to a second connection point representing grounding, the frequency response device enabling the metal body to simultaneously receive a receiving signal of a target frequency band and transmit a transmitting signal of the target frequency band.

[0005] According to an embodiment of the present disclosure, the frequency response device enables the metal body to receive and transmit signals of a first target frequency band in the form of a first antenna and simultaneously to receive and transmit signals of a second target frequency band in the form of a second antenna.

[0006] According to an embodiment of the present disclosure, through the frequency response device, the metal body satisfies the high impedance of the first antenna form close to the open circuit state, and at the same time, the metal body satisfies the low impedance of the second antenna form close to the short circuit state.

[0007] According to an embodiment of the present disclosure, the antenna performance of the metal body in the form of a first antenna for receiving and sending signals in the first target frequency band reaches a relatively optimal level of radiation efficiency. At the same time, the antenna performance of the metal body in the form of a second antenna for receiving and sending transmission signals in the second target frequency band reaches a relatively optimal level of radiation efficiency.

[0008] According to an embodiment of the present disclosure, through the frequency response device, the impedance of the metal body when it receives and transmits signals in the first target frequency band in the form of a first antenna and the impedance of the metal body when it receives and transmits signals in the second target frequency band in the form of a second antenna are in the same quadrant or adjacent quadrants on the impedance circle diagram.

[0009] According to an embodiment of the present disclosure, the frequency response device includes one of the following: a resonant circuit, including a capacitor and an inductor connected in series, the capacitor is connected to the second position of the metal body, and the inductor is connected to the second connection point representing the grounding; a resonant circuit and a second capacitor connected in parallel with the resonant circuit, the second capacitor is connected to the second position of the metal body; a resonant circuit and a second inductor connected in parallel with the resonant circuit, the second inductor is connected to the second position of the metal body.

[0010] According to an embodiment of the present disclosure, the frequency response device further includes: a switch connected to the resonant circuit and the second position of the metal body respectively.

[0011] According to an embodiment of the present disclosure, the switch is used to select an antenna to operate in a specific transceiver frequency band.

[0012] A second aspect of the present disclosure provides an electronic device, including: a target antenna, a metal radiator of the target antenna simultaneously receives a receive signal in a target frequency band and transmits a transmit signal in the target frequency band; and a communication chip, used to meet a trigger condition and enable the target antenna.

[0013] According to an embodiment of the present disclosure, the electronic device further includes: a switch, which enables the target antenna to operate in a specific transceiver frequency band.

[0014] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and other objects, features and advantages of the present disclosure will become more apparent through the following description of the embodiments of the present disclosure with reference to the accompanying drawings, in which:

[0016] Figure 1 Schematically shows a structural diagram of an antenna according to a first embodiment of the present disclosure;

[0017] Figure 2 Schematically showing the structure of two antenna forms according to the second embodiment of the present disclosure;

[0018] Figure 3A and Figure 3B A comparison diagram of impedance and radiation efficiency of two antenna forms according to the second embodiment of the present disclosure is schematically shown;

[0019] Figure 4 The structure diagram of the frequency response device according to the sixth embodiment of the present disclosure is schematically shown;

[0020] Figure 5 Schematically shows an S parameter curve diagram of a frequency response device according to a sixth embodiment of the present disclosure;

[0021] Figure 6 Schematically shows a structural diagram of an antenna according to a seventh embodiment of the present disclosure;

[0022] Figure 7 A diagram schematically shows a comparison between the radiation efficiency of an antenna according to a seventh embodiment of the present disclosure and a conventional antenna;

[0023] Figure 8Schematically shows a reflection waveform diagram of an antenna according to a seventh embodiment of the present disclosure;

[0024] Fig. 9 A block diagram of an electronic device according to an embodiment of the present disclosure is schematically shown.

[0025] Description of reference numerals:

[0026] 1-metal body; 2-feeding point; 3-ground terminal; 4-frequency response device; 5-switch. DETAILED DESCRIPTION

[0027] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. However, it should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present disclosure. In the following detailed description, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the embodiments of the present disclosure. However, it is apparent that one or more embodiments may also be implemented without these specific details. In addition, in the following description, descriptions of known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present disclosure.

[0028] The terms used herein are only for describing specific embodiments and are not intended to limit the present disclosure. The terms "comprise", "include", etc. used herein indicate the existence of features, steps, operations and / or components, but do not exclude the existence or addition of one or more other features, steps, operations or components.

[0029] All terms (including technical and scientific terms) used herein have the meanings commonly understood by those skilled in the art unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of this specification and should not be interpreted in an idealized or overly rigid manner.

[0030] When using expressions such as "at least one of A, B, and C, etc.", they should generally be interpreted according to the meaning of the expression commonly understood by those skilled in the art (for example, "a system having at least one of A, B, and C" should include but is not limited to a system having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, C, etc.).

[0031] The embodiments of the present disclosure provide an antenna and an electronic device. Before introducing the technical solutions provided by the embodiments of the present disclosure, the related technologies involved in the present disclosure are first described.

[0032] Currently, 3GPP Band 66 (uplink frequency: 1710~1780 MHz; downlink frequency: 2110~2200MHz) has become the main frequency band for many operators due to its ultra-wide frequency range resources. Band 66 is an FDD (Frequency Division Duplex) frequency band. During use, uplink and downlink work simultaneously, so the antenna needs to support a bandwidth from 1710MHz to 2200MHz, which brings great challenges to antenna design.

[0033] In related technologies, the design is optimized mainly through antenna impedance design, coupling assistance, etc. However, impedance design and coupling assistance measures often require more design space in the design, which will require more design space resources for compact products. In addition, most mobile phone communications currently require support for 4*4 MIMO (multiple input and multiple output). Under antenna switching technology, it is more difficult to design multiple antennas with broadband support.

[0034] In view of this, the present disclosure provides an antenna and an electronic device for at least partially solving the above problems.

[0035] The following will be passed Figure 1 to Figure 8 The antenna according to the embodiment of the present disclosure is described in detail.

[0036] Figure 1 The structure of the antenna according to the first embodiment of the present disclosure is schematically shown.

[0037] like Figure 1 As shown, the first embodiment of the present disclosure provides an antenna, including a metal body 1, a feeding point 2 and a frequency response device 4.

[0038] The feeding point 2 is connected to a first position of the metal body 1 and to a first connection point representing the ground 3. The frequency response device 4 is connected to a second position of the metal body 1 and to a second connection point representing the ground 3. The frequency response device 4 enables the metal body 1 to simultaneously receive a receiving signal of a target frequency band and transmit a transmitting signal of a target frequency band.

[0039] The target frequency band is the frequency band required for the antenna to communicate. Exemplarily, the target frequency band may be Band 66, or may be other frequency bands except Band 66, such as Band 4 (uplink frequency: 1710~1755MHz; downlink frequency: 2110~2155MHz) similar to Band 66, etc. The present disclosure does not specifically limit the target frequency band.

[0040] In this embodiment, the metal body 1 serves as a radiator of the antenna, and the material may be various metal materials, such as copper, silver, iron, etc.

[0041] In this embodiment, the metal body 1 simultaneously receives a reception signal of a target frequency band and transmits a transmission signal of a target frequency band, including: the metal body 1 simultaneously receives and transmits a signal of a first target frequency band and a signal of a second target frequency band.

[0042] Characteristic ground 3 is used as the ground terminal of the antenna. The frequency response device is arranged at the second position of the metal body, and the frequency response characteristics and the second position of the frequency response device are related to the wavelength corresponding to the target frequency band of the antenna.

[0043] Through the above structure, the antenna can simultaneously send and receive signals for the same target frequency band on a metal body, which can effectively improve spectrum utilization and reduce delays in wireless communications.

[0044] The second embodiment of the present disclosure provides an antenna. Different from the first embodiment, the frequency response device enables the metal body to receive and transmit signals of the first target frequency band in the form of a first antenna and to receive and transmit signals of the second target frequency band in the form of a second antenna.

[0045] Exemplarily, the first antenna form and the second antenna form can be one of the following antenna forms: IFA antenna (Inverted-F Antenna), inverted L antenna, double inverted F antenna, DILA antenna (Dual Inverted-LAntenna), monopole antenna, dipole antenna, horn antenna, loop antenna, helical antenna, traveling wave antenna, four-arm helical antenna, symmetrical antenna, asymmetrical antenna, electric dipole antenna, magnetic dipole antenna, or capacitively loaded magnetic dipole antenna, etc.

[0046] For ease of explanation, the first antenna form is an IFA antenna and the second antenna form is a DILA antenna. However, it is understandable that the embodiments of the present disclosure are not limited to these two antenna forms. For example, in other embodiments, the first antenna form may be a loop antenna and the second antenna form may be a monopole antenna.

[0047] Figure 2 The structure diagram of two antenna forms according to the second embodiment of the present disclosure is schematically shown.

[0048] like Figure 2 As shown, the first antenna form may be an IFA antenna. The IFA antenna is a modified structure of a monopole antenna. By folding the wire into an F shape, the antenna is smaller in size, has a wider frequency response, and has better performance characteristics. It is widely used in short-range wireless communications such as Bluetooth and WiFi.

[0049] The second antenna form can be a DILA antenna. The DILA antenna consists of a short monopole as a vertical unit and a horizontal unit attached to the end of the monopole. The short-circuit pin length can be selected according to the operating frequency requirements to achieve antenna miniaturization and optimize antenna performance. It has a simple structure, is easy to integrate, has no dielectric loss, is easy to adjust, and has a large gain.

[0050] Figure 3A and Figure 3B The figure schematically shows a comparison diagram of impedance and radiation efficiency of two antenna forms according to the second embodiment of the present disclosure.

[0051] like Figure 3A As shown in the figure, the impedance of the IFA antenna in the Band 66 uplink frequency band is close to the impedance of the DILA antenna in the Band 66 downlink frequency band, and it is possible to achieve the best performance by using the same impedance matching for uplink and downlink. Figure 3B As shown in the figure, at the Band 66 uplink frequency (1710~1780 MHz), the IFA antenna has better radiation efficiency (RadiationEfficiency) than the DILA antenna; at the Band 66 downlink frequency (2110~2200MHz), the DILA antenna has better radiation efficiency than the IFA antenna.

[0052] It can be seen that the IFA antenna and the DILA antenna have different impedances and radiation efficiencies. This embodiment utilizes this characteristic to merge the two antenna forms to obtain the respective advantages of the two antenna forms.

[0053] Through the above structure, the frequency response device allows the same metal body to be switched into two different antenna forms, and different antenna forms can correspond to different target frequency bands, thereby ensuring that the antenna can simultaneously transmit and receive signals in the first target frequency band and transmit and receive signals in the second target frequency band, reducing the production cost and the occupation of the internal layout space of the electronic device.

[0054] The third embodiment of the present disclosure provides an antenna, which is different from the aforementioned second embodiment in that, through a frequency response device, the metal body satisfies the high impedance of the first antenna form close to the open circuit state and the metal body satisfies the low impedance of the second antenna form close to the short circuit state.

[0055] In this embodiment, on the basis that the same metal body can be transformed into two antenna forms, the impedance characteristics of the two antenna forms are limited.

[0056] It can be understood that the frequency selection capability of the first antenna form and the second antenna form can be related to the impedance of the antenna, and the channel can be selected by controlling the antenna impedance, that is, the first antenna form has a high impedance close to an open circuit state, and the second antenna form has a low impedance close to a short circuit state.

[0057] The first antenna form has a high impedance close to an open circuit state, that is, the first antenna form is an open circuit antenna, such as an IFA antenna, a loop antenna, etc. The second antenna form has a low impedance close to a short circuit state, that is, the second antenna form is a closed loop antenna, such as a DILA antenna, a Monopole antenna, etc.

[0058] In this way, selectivity for the target frequency band can be achieved by adjusting the impedance of the antenna.

[0059] The fourth embodiment of the present disclosure provides an antenna. Different from the aforementioned second embodiment, the antenna performance of the metal body in the form of a first antenna for receiving and sending signals in the first target frequency band reaches a relatively optimal level of radiation efficiency. At the same time, the antenna performance of the metal body in the form of a second antenna for receiving and sending transmission signals in the second target frequency band reaches a relatively optimal level of radiation efficiency.

[0060] It can be understood that the antenna performances corresponding to the two antenna forms of the metal body can be the same or different. When the two antenna forms have different performances, this embodiment can take both into account and make the antenna performances corresponding to the two antenna forms reach a relatively optimal level of radiation efficiency.

[0061] In this way, the effective antenna bandwidth can be designed to meet the uplink and downlink system efficiency of Band 66.

[0062] The fifth embodiment of the present disclosure provides an antenna, which is different from the aforementioned fourth embodiment in that, through a frequency response device, the impedance of the metal body when it receives and transmits a signal of a first target frequency band in the form of a first antenna and the impedance of the metal body when it receives and transmits a signal of a second target frequency band in the form of a second antenna are in the same quadrant or adjacent quadrants on the impedance circle diagram.

[0063] It is understandable that in electricity, the resistance to the current in the circuit is often called impedance. Impedance can be divided into two parts, resistance (real part) and reactance (imaginary part). Reactance includes capacitive reactance and inductive reactance. The resistance to current caused by capacitance is called capacitive reactance, and the resistance to current caused by inductance is called inductive reactance.

[0064] In this embodiment, the impedances of the two antenna forms are in the same quadrant or adjacent quadrants on the impedance circle diagram, so as to achieve impedance matching between the signal source and the load, thereby realizing effective transmission of the signal from the signal source to the load.

[0065] Figure 4 The structure of a frequency response device according to a sixth embodiment of the present disclosure is schematically shown.

[0066] like Figure 4 As shown, the sixth embodiment of the present disclosure provides an antenna, which is different from any of the above embodiments in that the frequency response device includes one of the following:

[0067] A resonant circuit L / C Circuit, comprising a capacitor C1 and an inductor L1 connected in series, the capacitor C1 is connected to a second position of the metal body, and the inductor L1 is connected to a second connection point representing grounding;

[0068] A resonant circuit L / C Circuit and a second capacitor C2 connected in parallel with the resonant circuit L / C Circuit, wherein the second capacitor C2 is connected to a second position of the metal body;

[0069] The resonant circuit L / C Circuit and a second inductor L2 connected in parallel with the resonant circuit L / C Circuit, the second inductor L2 is connected to the second position of the metal body.

[0070] It is understandable that the resonant circuit L / C Circuit is the basic circuit of the frequency response device, and can be improved on the basis of the resonant circuit to obtain frequency response devices with other structures. That is, the embodiments of the present disclosure are not limited to the structures of these three frequency response devices. In other embodiments, there can also be frequency response devices with other structures to achieve resonant frequency selection.

[0071] The following takes the frequency response device as a resonant circuit L / C Circuit as an example to explain the principle that the frequency response device enables the metal body to simultaneously receive a receiving signal of the target frequency band and transmit a transmitting signal of the target frequency band.

[0072] Figure 5 The S-parameter curve diagram of the frequency response device according to the sixth embodiment of the present disclosure is schematically shown.

[0073] like Figure 5 As shown in the figure, it is the reflection parameter (S2.1) curve obtained from the L / C Circuit experiment using a resonant circuit with a 0.4pF capacitor and a 20nH inductor in series. From the curve, it can be seen that the resonant frequency of this capacitor and inductor combination is in the 1700-1800MHz frequency band, and the resonant short-circuit loss generated is smaller in the 2100-2200MHz range.

[0074] It can be seen that when the inductor and the capacitor work in series, they present a low impedance near the resonant frequency band, that is, a short-circuit state, and a high impedance after the resonant frequency band, that is, an open-circuit state.

[0075] In this embodiment, the resonant circuit L / C Circuit can be applied to the ground end of the antenna, and the resonant frequency of the inductor and the capacitor is It can be calculated according to the following formula:

[0076]

[0077] In the formula, are the inductance and capacitance values ​​respectively.

[0078] Considering that Band 66 supports a bandwidth from 1710MHz to 2200MHz, according to the radiation efficiency data, the short-circuit frequency band of the resonant circuit can be designed to be in the Band 66 uplink frequency band of 1710~1780MHz, while being open-circuited in the Band 66 downlink frequency band.

[0079] From the calculation formula of the resonant frequency, it can be seen that different combinations of inductance and capacitance can be selected to achieve the same resonant frequency band. At the same time, the inductance and capacitance values ​​can be reasonably optimized according to the size of the antenna, so as to achieve the application of IFA antenna in the uplink of Band 66 and DILA antenna in the downlink, so as to achieve the impedance closeness effect and match the uplink and downlink frequencies at the same time.

[0080] It is understandable that when the target frequency band is other than Band 66, this embodiment can select different structures for the frequency response device, as well as different combinations of inductance and capacitance values, to achieve antenna design that meets other frequency bands.

[0081] In this way, at the uplink frequency of Band 66, the resonant circuit is in a short-circuit state, forming an IFA antenna; at the downlink frequency of Band 66, the resonant circuit is in a disconnected state, forming a DILA antenna.

[0082] Figure 6 The structure of an antenna according to the seventh embodiment of the present disclosure is schematically shown.

[0083] like Figure 6 As shown, the seventh embodiment of the present disclosure provides an antenna. Different from the aforementioned sixth embodiment, the frequency response device further includes: a switch 5, which is connected to the resonant circuit and the second position of the metal body 1 respectively.

[0084] This embodiment adds a switch on the basis of the sixth embodiment, which can connect or disconnect the resonant circuit in the frequency response device with the metal body.

[0085] For example, when the switch is open, the metal body transmits and receives signals of a first target frequency band in the form of a first antenna; when the switch is closed, the metal body transmits and receives signals of a second target frequency band in the form of a second antenna.

[0086] It is understandable that, in other embodiments, for frequency response devices with different structures, the setting position of the switch can be the same or different, as long as the resonant circuit of the frequency response device can be connected or disconnected from the metal body.

[0087] Figure 7 The figure schematically shows the comparison between the radiation efficiency of the antenna according to the seventh embodiment of the present disclosure and the traditional antenna.

[0088] like Figure 7 As shown, for the Band 66 frequency band, taking the frequency response device including the resonant circuit L / C Circuit and the switch as an example, an experimental comparison of the radiation efficiency of the antenna of this embodiment and the traditional antenna is carried out. The experimental results show that for the traditional antenna with uplink priority design, the downlink radiation efficiency will decrease significantly; for the traditional antenna with downlink priority design, the uplink radiation efficiency will also decrease significantly; for the more compromised traditional antenna with uplink and downlink balanced design, the improvement of uplink and downlink radiation efficiency is not obvious. However, for the antenna using the frequency response device of this embodiment as the resonant circuit L / C Circuit and the switch, both the uplink and downlink have good radiation characteristics. The uplink radiation efficiency is at least 2dBp higher than that of the traditional antenna with uplink and downlink balanced design, and the downlink radiation efficiency is at least 4dBp higher than that of the traditional antenna with uplink and downlink balanced design.

[0089] It can be seen that the antenna provided in this embodiment has outstanding performance in various performance indicators, and all indicators have been significantly improved compared with traditional antennas. Therefore, the antenna performance of the metal body in the form of the first antenna for receiving and transmitting signals in the first target frequency band reaches a relatively optimal level of radiation efficiency, and at the same time, the antenna performance of the metal body in the form of the second antenna for receiving and transmitting signals in the second target frequency band reaches a relatively optimal level of radiation efficiency.

[0090] Figure 8 The reflection waveform diagram of the antenna according to the seventh embodiment of the present disclosure is schematically shown.

[0091] like Figure 8 As shown, for the antenna using the frequency response device of this embodiment including the resonant circuit L / C Circuit and the switch, the experimental results show that the proposed antenna can achieve good transmit and receive isolation, which is -16.346dBa and -4.5239dBa at the uplink 1.71GHz and the downlink 2.11GHz respectively, and the uplink and downlink transmission characteristics can still meet the requirements, and the bandwidth has been greatly improved, which has application potential in high-speed wireless communication systems.

[0092] The eighth embodiment of the present disclosure provides an antenna, which is different from the previous embodiments in that a switch is used to select the antenna to operate in a specific transmitting and receiving frequency band.

[0093] For example, the specific transceiver frequency band includes a first target frequency band and a second target frequency band. By turning on or off the switch, intelligent selection of different forms of antennas can be achieved, so that the metal body can transmit and receive signals of the first target frequency band in the form of the first antenna and transmit and receive signals of the second target frequency band in the form of the second antenna.

[0094] Through this structure, the switch allows only one antenna form to exist at the same time, and the same antenna form only contains one target frequency band, thereby ensuring a wider frequency band of the antenna, achieving the effect of increasing the frequency band of the antenna while ensuring the bandwidth.

[0095] In summary, the embodiments of the present disclosure provide an antenna that combines the radiation advantages of the IFA antenna and the DILA antenna, and utilizes the impedance characteristics of these two antenna forms. Without increasing the design space, an antenna that covers both the uplink and downlink of Band 66 is designed, providing a new solution for the antenna design of the Band 66 frequency band, which can effectively improve the spectrum utilization, reduce the time delay in wireless communications, have good transmission performance, and have a simple and compact structure, thereby reducing the manufacturing cost and the occupation of the internal layout space of electronic devices.

[0096] Based on the above antenna, the present disclosure also provides an electronic device, which will be described below. Fig. 9 The electronic device according to the embodiment of the present disclosure is described in detail.

[0097] Fig. 9 A block diagram of an electronic device according to an embodiment of the present disclosure is schematically shown.

[0098] like Fig. 9 As shown, the electronic device 900 of this embodiment includes:

[0099] The target antenna 910, the metal radiator of the target antenna simultaneously receives the receiving signal of the target frequency band and transmits the transmitting signal of the target frequency band;

[0100] The communication chip 920 is used to enable the target antenna when the trigger condition is met.

[0101] The electronic devices of the embodiments of the present disclosure may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to a wireless modem, as well as various forms of user equipment (UE), mobile stations (MS), terminal devices, etc. For example, the electronic device may be a mobile phone, a laptop computer, a tablet computer, a wearable device, etc.

[0102] For example, the target antenna is connected to an interface of a communication chip, and the communication chip can determine whether to execute the simultaneous same-frequency transceiver function of the target antenna according to whether a trigger condition is met.

[0103] For example, when the communication chip determines that the trigger conditions are met, the metal radiator of the target antenna is allowed to simultaneously receive the receive signal of the target frequency band and transmit the transmit signal of the target frequency band; when the communication chip determines that the trigger conditions are not met, the target antenna does not work.

[0104] In this embodiment, the metal radiator of the target antenna may be the metal body in any of the above antenna embodiments, and the target antenna may be the antenna in any of the above embodiments, which will not be described in detail herein.

[0105] In some embodiments, the electronic device further includes a switch, and the switch is used to enable the target antenna to operate in a specific transceiver frequency band.

[0106] For example, the specific transceiver frequency band includes a first target frequency band and a second target frequency band. By turning on or off the switch, different forms of intelligent selection of the target antenna can be achieved, thereby transmitting and receiving signals in the first target frequency band and transmitting and receiving signals in the second target frequency band.

[0107] For example, when the switch is turned on, the target antenna can be set to the first antenna form to transmit and receive signals in the first target frequency band; when the switch is turned off, the target antenna can be set to the second antenna form to transmit and receive signals in the second target frequency band.

[0108] It should be noted that the description of the electronic device of the embodiment of the present disclosure is similar to the description of the above-mentioned antenna embodiment, and has similar beneficial effects as the same structural embodiment, so it is not repeated here. For technical details not disclosed in the electronic device of the embodiment of the present disclosure, please refer to the description of the antenna of the embodiment of the present disclosure for understanding.

[0109] It will be appreciated by those skilled in the art that the features described in the various embodiments of the present disclosure may be combined and / or combined in a variety of ways, even if such combinations or combinations are not explicitly described in the present disclosure. In particular, without departing from the spirit and teachings of the present disclosure, the features described in the various embodiments of the present disclosure may be combined and / or combined in a variety of ways. All of these combinations and / or combinations fall within the scope of the present disclosure.

[0110] The embodiments of the present disclosure are described above. However, these embodiments are only for illustrative purposes and are not intended to limit the scope of the present disclosure. Although the embodiments are described above, this does not mean that the measures in the various embodiments cannot be used in combination to advantage. Without departing from the scope of the present disclosure, those skilled in the art may make a variety of substitutions and modifications, which should all fall within the scope of the present disclosure.

Claims

1. An antenna, comprising: Metal body; A feeding point connected to a first position of the metal body and to a first connection point representing grounding; A frequency response device is connected to the second position of the metal body and to a second connection point representing grounding, and the frequency response device enables the metal body to simultaneously receive a receiving signal of a target frequency band and transmit a transmitting signal of the target frequency band.

2. The antenna according to claim 1, wherein the frequency response device enables the metal body to receive and transmit signals of a first target frequency band in the form of a first antenna and to receive and transmit signals of a second target frequency band in the form of a second antenna.

3. The antenna according to claim 2, wherein the frequency response device enables the metal body to satisfy the high impedance of the first antenna form close to an open circuit state and simultaneously enables the metal body to satisfy the low impedance of the second antenna form close to a short circuit state.

4. According to the antenna of claim 2, the antenna performance of the metal body in the form of a first antenna for receiving and transmitting signals in the first target frequency band reaches a relatively optimal level of radiation efficiency. At the same time, the antenna performance of the metal body in the form of a second antenna for receiving and transmitting signals in the second target frequency band reaches a relatively optimal level of radiation efficiency.

5. The antenna according to claim 4, through the frequency response device, the impedance of the metal body when it receives and transmits signals in the first target frequency band in the form of the first antenna and the impedance of the metal body when it receives and transmits signals in the second target frequency band in the form of the second antenna are in the same quadrant or adjacent quadrants on the impedance circle diagram.

6. The antenna according to claim 3 or 5, wherein the frequency response device comprises one of the following: A resonant circuit, comprising a capacitor and an inductor connected in series, wherein the capacitor is connected to a second position of the metal body, and the inductor is connected to a second connection point representing grounding; A resonant circuit and a second capacitor connected in parallel with the resonant circuit, wherein the second capacitor is connected to a second position of the metal body; A resonant circuit and a second inductor connected in parallel with the resonant circuit, wherein the second inductor is connected to a second position of the metal body.

7. The antenna according to claim 6, wherein the frequency response device further comprises: A switch is connected to the resonant circuit and the second position of the metal body respectively.

8. The antenna according to claim 7, wherein the switch is used to enable the antenna to operate in a specific transceiver frequency band.

9. An electronic device, comprising: A target antenna, wherein a metal radiator of the target antenna simultaneously receives a reception signal of a target frequency band and transmits a transmission signal of the target frequency band; The communication chip is used to enable the target antenna when a trigger condition is met.

10. The electronic device according to claim 9, further comprising: A switch is used to enable the target antenna to operate in a specific transceiver frequency band.

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