CN217544913U

CN217544913U - Antenna device and electronic apparatus

Info

Publication number: CN217544913U
Application number: CN202220832262.4U
Authority: CN
Inventors: 林栢暐
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2022-04-11
Filing date: 2022-04-11
Publication date: 2022-10-04
Anticipated expiration: 2032-04-11

Abstract

The application discloses antenna device and electronic equipment, including first irradiator and second irradiator, first irradiator configuration is worked in first frequency channel, and second irradiator configuration is worked in the second frequency channel. The second radiator is electrically connected with the first tuning control unit, the first tuning control unit is used for receiving an excitation signal or grounding, and the first tuning control unit is used for adjusting the second frequency band to the first target trapped wave frequency band so as to weaken a radiation field generated in a part of directions when the first radiator works in the first frequency band. Through the mode, the second radiator can weaken part of the radiation field generated by the first radiator, so that the radiation field of the first radiator has directivity.

Description

Antenna device and electronic apparatus

Technical Field

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

Background

Electronic devices, such as cell phones, tablets, laptops, or wearable devices, typically include one or more antennas for transmitting and/or receiving electromagnetic waves.

To meet the communication requirements, the radiation of the antennas in electronic devices is generally omnidirectional or approximately omnidirectional in the horizontal plane. However, for detecting the presence of a signal object at an unknown location in a small space using an antenna, such as a forgotten electronic device or a hidden camera in a hotel, the detection antenna does not have directivity in a pattern and cannot detect accurately.

SUMMERY OF THE UTILITY MODEL

The technical problem that this application mainly solved provides an antenna device and electronic equipment, can improve the directionality of electronic equipment antenna.

In order to solve the technical problem, the application adopts a technical scheme that: provided is an antenna device including:

a first radiator configured to operate within a first frequency band; and

the second radiator is configured to work in a second frequency band and is electrically connected with the first tuning control unit, the first tuning control unit is used for receiving an excitation signal or grounding, and the first tuning control unit is used for adjusting the second frequency band to a first target trapped wave frequency band so as to weaken a radiation field generated by the first radiator in a part of directions when the first radiator works in the first frequency band.

In order to solve the above technical problem, another technical solution adopted by the present application is: provided is an electronic device including:

a display screen;

a housing assembly for mounting the display screen; and

the application provides an antenna device, set up in casing subassembly.

The beneficial effect of this application is: the antenna device of the present application includes a first radiator and a second radiator configured to operate in a first frequency band and a second frequency band, respectively. The first tuning control unit is electrically connected with the second radiator and can be used for controlling the working frequency band of the second radiator. Different from the prior art, the first tuning control unit of the present application may adjust the second frequency band to the first target notch frequency band, so that the second radiator may weaken a radiation field generated in a part of directions when the first radiator operates in the first frequency band. The antenna field generated by the first radiator is weakened in part of directions, so that the antenna field of the first radiator has directivity, and the signal detection capability of the antenna is effectively improved.

Drawings

Fig. 1 is a schematic structural diagram of an antenna device according to a first embodiment of the present application;

fig. 2 is another schematic structural diagram of the antenna device according to the first embodiment of the present application;

fig. 3 is a schematic structural diagram of an antenna device according to a second embodiment of the present application;

fig. 4 is a schematic structural diagram of an antenna device according to a third embodiment of the present application;

fig. 5 is a schematic structural diagram of an antenna device according to a fourth embodiment of the present application;

fig. 6 is a schematic structural diagram of an antenna device according to a fifth embodiment of the present application;

fig. 7 is a schematic structural diagram of an antenna device according to a sixth embodiment of the present application;

FIG. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present application

FIG. 9 is a schematic structural view of the center frame assembly of FIG. 8;

fig. 10 is a schematic view of the structure of the antenna device mounted on the middle frame assembly of fig. 8.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present 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 application. The appearances of the 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 explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The application provides an antenna device which can be applied to electronic equipment. The antenna device can not only communicate with a network and other equipment through wireless communication, but also improve the directivity to detect signals.

As used herein, an "electronic device" (which may also be referred to as a "terminal" or "mobile terminal" or "electronic device") includes, but is not limited to, equipment configured to receive/transmit communication signals via a wireline connection, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection, and/or another data connection/network, and/or via a wireless interface (e.g., for a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter, and/or another communication terminal). A communication terminal arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal" or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; a Personal Communications System (PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; PDAs that may include radiotelephones, pagers, internet/intranet access, web browsers, notepads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A cellular phone is an electronic device equipped with a cellular communication module.

The wireless communication may employ one of cellular communication protocols such as LTE, LTE-a (LTE-a), code Division Multiple Access (CDMA), WCDMA, universal Mobile Telecommunications System (UMTS), wireless broadband (WiBro), or global system for Mobile communications (GSM). The wireless Communication may include short-range Communication, which may include at least one of Wi-Fi, bluetooth, near Field Communication (NFC), magnetic Stripe Transmission (MST), or GNSS.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of an antenna device in a first embodiment of the present application, and fig. 2 is another schematic structural diagram of the antenna device in the first embodiment of the present application. The antenna device 100 may be a hybrid of one or more of a Flexible Printed Circuit (FPC) antenna, a Laser Direct Structuring (LDS) antenna, a Print Direct Structuring (PDS) antenna, an Inverted-F antenna (IFA), a planar Inverted-F antenna (PIFA), a monopole antenna (monopoles) or a metal-branched antenna. Of course, the antenna device 100 may also be other types of antennas, which are not described in detail. In some embodiments, the antenna device 100 may not be limited to only one or more of strip, sheet, rod, coating, film, etc. forms.

Specifically, the antenna device 100 may include a first radiator 110 and a second radiator 120 for transceiving signals, and the first radiator 110 and the second radiator 120 may be capable of radiating electromagnetic waves to the surrounding.

The first radiator 110 is provided with a first grounding point 113 and a first feeding point 112, the first feeding point 112 is electrically connected to the first power supply 111, the first grounding point 113 is grounded, and the first radiator 110 is configured to operate in the first frequency band.

The second radiator 120 is provided with a second grounding point 123 and a second feeding point 124, the second grounding point 123 is grounded, the second feeding point 124 is electrically connected with the first tuning control unit 122, the first tuning control unit 122 is electrically connected with the second feeding source 121, and the second radiator 120 is configured to operate in a second frequency band. In other embodiments, the first tuning control unit 122 may also be arranged between the second grounding point 123 and ground.

Alternatively, as shown in fig. 2, the second radiator 120 may include first sub-radiators 120a and 120b, and the second sub-radiator 120b is provided with another ground point 125. The openings of the first sub radiator 120a and the second sub radiator 120b are arranged at intervals and are opposite to each other, so that the first sub radiator 120a and the second sub radiator 120b are capacitively coupled, and the second radiator 120 can cover the medium-high frequency end. An electric field is generated between the first sub-radiator 120a and the second sub-radiator 120b, and a signal of the first sub-radiator 120a can be transmitted to the second sub-radiator 120b through the electric field, so that the second sub-radiator 120b can achieve electrical signal conduction even in a state where a feed signal is not accessed.

The first and second frequency bands, and the frequency bands appearing herein, may be low, mid, or high frequency bands. The low frequency band may correspond to a frequency band in the range of approximately 600MHz to 1000MHz, and the mid frequency band may correspond to a frequency band in the range of 1400MHz to 2200 MHz. The high frequency band may correspond to a frequency band in the range of 2300MHz to 3800 MHz.

The two second radiators 120 are configured to operate in the second frequency band. The second frequency band and the first frequency band are different frequency bands, so that the first radiator 110 and the second radiator 120 can operate in different frequency bands. When the first radiator 110 and the second radiator 120 are disposed on the electronic device, the multi-band extends the adaptability and scalability of the electronic device to different frequency bands.

In this embodiment, the first tuning control unit 122 mainly aims to meet the requirement of multiple bands of the second radiator 120, and can change the resonant mode of the second radiator 120.

Alternatively, the first tuning control unit 122 may be composed of a switch control unit and/or a load circuit, or of a tunable capacitor and/or a tunable inductor. In an embodiment, the switch control unit may be a switch chip with a switching function, and may also be a single-pole multi-throw switch or a single-pole single-throw switch.

In this embodiment, the first tuning control unit 122 may adjust the operating frequency band of the second radiator 120, and adjust the second frequency band to the first target notch frequency band.

When the second radiator 120 is in the first target notch frequency band, a high impedance interface can be established in the first frequency band, and the second radiator 120 can generate a notch function for the first radiator 110 operating in the first frequency band.

The second radiator 120 weakens the radiation field generated by the first radiator 110 in a partial direction when operating in the first frequency band, so that the radiation field of the first radiator 110 having the original radiation omnidirectionality in the direction of the second radiator 120 is partially shielded, and the radiation field of the first radiator 110 no longer has the omnidirectionality.

In order to implement the trap function of the second radiator 120 on the first radiator 110 operating in the first frequency band, at least a part of the first target trap frequency band needs to be set within the first frequency band or a frequency band adjacent to the first frequency band.

For example, when the first frequency band is 2.4 to 2.5GHz, at least part of the first target notch frequency band is set within 2.4 to 2.5 GHz; or the first frequency band is 5.15-5.85 GHz, and at least part of the first target notch frequency band is set within 5.15-5.85 GHz, namely at least part of the first target notch frequency band is overlapped with the first frequency band.

If the first radiator 110 and the second radiator 120 operate at the same frequency, radio frequency interference may be generated, which may affect the performance of the two radiators. The first target notch frequency is set near the frequency band adjacent to the first frequency band, so that the notch function can be achieved, and the generation of radio frequency interference is reduced.

Optionally, the first target notch frequency band is greater than the first frequency band, that is, the minimum frequency of the first target notch frequency band is greater than the maximum frequency of the first frequency band; or the first target notch frequency band is smaller than the first frequency band, i.e. the maximum frequency of the first target notch frequency band is smaller than the minimum frequency of the first frequency band.

When the first target notch frequency band is greater than the first frequency band and the difference between the minimum frequency of the first target notch frequency band and the maximum frequency of the first frequency band is within 0.15GHz, the second radiator 120 can effectively generate a notch function on the first radiator 110 operating in the first frequency band.

For example, when the first frequency band includes 2.4 to 2.5GHz, the corresponding first target notch frequency band may include N GHz to M GHz (2.5N-woven-over-2.65N-woven-over-M). The frequency Band comprises Band41 (2.5-2.69 GHz) in the LTE-4G frequency Band.

When the first target notch frequency band is smaller than the first frequency band and the difference between the maximum frequency of the first target notch frequency band and the minimum frequency of the first frequency band is within 0.15GHz, the second radiator 120 can effectively generate a notch function on the first radiator 110 operating in the first frequency band.

For example, where the first frequency band includes 2.4 to 2.5GHz, the corresponding first target notch frequency band may include M GHz to N GHz (2.25N-woven-cloth-2.4N-woven-cloth). The frequency Band comprises Band40 (2.3-2.4 GHz) in the LTE-4G frequency Band.

When the first frequency band includes 5.15 to 5.85GHz, the corresponding first target notch frequency band may include M GHz to N GHz (5-N-woven-5.15-M-woven-N). The frequency band includes an N79 frequency band (4.4 to 5 GHz) of the NR-5G frequency band.

In other embodiments, the difference between the minimum frequency of the first target notch frequency band and the maximum frequency of the first frequency band may also be greater than 0.15GHz, and the difference between the maximum frequency of the first target notch frequency band and the minimum frequency of the first frequency band may also be greater than 0.15GHz, and the notch effect may be slightly worse than the above range.

Therefore, when the antenna device 100 in this embodiment is applied to an electronic device, the first radiator 110 may be used as a WiFi antenna at 2.4GHz, and the second radiator 120 may be used as an LTE antenna. When the LTE antenna is in a Band41 or a Band40 in an LTE-4G frequency Band, the radiation field in the direction of the WiFi antenna part can be weakened, so that the radiation field generated by the WiFi antenna has obvious directivity. It is also possible to use the first radiator 110 as a WiFi antenna at 5GHz and the second radiator 120 as an NR antenna.

In addition, when the first frequency band in which the first radiator 110 operates is a middle/high frequency band (1400 MHz to 2200mhz,2300mhz to 3800 MHz), and the second frequency band in which the second radiator 120 operates is a low frequency band (600 MHz to 1000 MHz), the second frequency band may reach the first target notch frequency band after frequency doubling, for example, 3 frequency doubling.

Or, a UMB (UMB) antenna also exists in the current electronic device, and some frequency bands of the UMB may also be used as a trap filter of a WiFi antenna of 5GHz, so as to improve the directivity of the WiFi antenna.

Through the setting, the electronic equipment can start the WiFi antenna, adjust the working frequency bands of other antennas to the corresponding first trapped wave frequency band, and then detect unknown signals through the WiFi antenna.

Therefore, the antenna device 100 in this embodiment not only can use the first radiator 110 and the second radiator 120 as two separate antennas to transmit or receive signals, but also can tune the second radiator 120 to the wave trap as the first radiator 110, and the first radiator 110 and the second radiator 120 jointly serve as a signal detection device.

Referring to fig. 3, fig. 3 is a schematic structural diagram of an antenna device according to a first embodiment of the present application.

In this embodiment, the antenna device 100 may include a first radiator 110 and two second radiators 120, and the first radiator 110 and the two second radiators 120 may be capable of radiating electromagnetic waves to the periphery.

Each second radiator 120 is provided with a respective second ground point 123 and a second feed point 124. The second grounding point 123 is grounded, the second feeding point 124 is electrically connected to the first tuning control unit 122, the first tuning control unit 122 is electrically connected to the second feeding source 121, and the second radiator 120 is configured to operate in the second frequency band. In other embodiments, the first tuning control unit 122 may also be arranged between the second grounding point 123 and ground.

The two second radiators 120 are configured to operate in a second frequency band. The second frequency band and the first frequency band are different frequency bands, so that the first radiator 110 and the second radiator 120 can operate in different frequency bands. When the first radiator 110 and the second radiator 120 are disposed on the electronic device, the multiple bands expand the adaptability and scalability of the electronic device to different bands.

Similar to the first embodiment, the two second radiators 120 in this embodiment may weaken the radiation field generated by the first radiator 110 in a partial direction when operating in the first frequency band, so that the radiation field of the first radiator 110 having the radiation omnidirectionality in the second radiator 120 direction is partially shielded, and the radiation field of the first radiator 110 no longer has the omnidirectionality.

Compared with the first embodiment, the present embodiment provides two second radiators 120 to increase the weakening direction of the radiation field of the first radiator 110, so that the radiation field of the first radiator 110 has more directivity, and the detection sensitivity of the first radiator 110 is increased.

In other embodiments, three or more second radiators 120 may be added to further enhance the radiation directivity of the single first radiator 110. In addition, more first radiators 110 may be added, and each first radiator 110 may be influenced by the resonance of the second radiator 120 in the first target notch frequency band to exhibit directivity.

In the related art, an input multiple output (MIMO) system composed of multiple antennas is usually included in an electronic device. Therefore, based on the embodiment, the plurality of antennas can be used as the wave trap of the WiFi antenna, so that the plurality of antennas can be used as the wave trap of the WiFi antenna, and the signal detection function of the WiFi antenna is enhanced.

Referring to fig. 4, fig. 4 is a schematic structural diagram of an antenna device according to a third embodiment of the present application.

In this embodiment, the antenna device 100 may include a first radiator 110 and a second radiator 120 for transceiving signals, and the first radiator 110 and the second radiator 120 may be capable of radiating electromagnetic waves to the surroundings.

The first radiator 110 has a first grounding point 113 and a first feeding point 112, the first grounding point 113 is grounded, the first feeding point 112 is electrically connected to the first radiator tuning control unit 114, and the first radiator tuning control unit 114 is electrically connected to the first feeding source 111.

The first radiator 110 is configured to operate in a first frequency band or a third frequency band, where the first frequency band and the third frequency band are different frequency bands, so that when the first radiator 110 is disposed on an electronic device, the multiple frequency bands of the first radiator 110 expand the adaptability and scalability of the electronic device to different frequency bands.

Alternatively, the first radiator tuning control unit 114 and the first tuning control unit 122 may be composed of a switch control unit and/or a load circuit, or composed of a tunable capacitor and/or a tunable inductor. In an embodiment, the switch control unit may be a switch chip with a switching function, and may also be a single-pole multi-throw switch or a single-pole single-throw switch.

In this embodiment, the first radiator tuning control unit 114 may adjust the operating frequency band of the first radiator 110, and switch the operating frequency band of the first radiator 110 between the first frequency band and the third frequency band.

The first tuning control unit 122 may adjust the operating frequency band of the second radiator 120, and adjust the second frequency band to the first target notch frequency band. Alternatively, the second frequency band is adjusted to a second target notch frequency band.

When the second radiator 120 is in the first target notch frequency band, the second radiator 120 may generate a notch function for the first radiator 110 operating in the first frequency band. When the second radiator 120 is in the second target notch frequency band, the second radiator 120 can generate a notch function for the first radiator 110 operating in the third frequency band.

The second radiator 120 weakens the radiation field generated by the first radiator 110 in a partial direction when the first radiator 110 works in the first frequency band or the third frequency band, so that the radiation field of the first radiator 110 having the radiation omnidirectionality in the direction of the second radiator 120 is partially shielded, and the radiation field generated by the first radiator 110 when the first radiator 110 works in the first frequency band or the third frequency band no longer has the omnidirectionality.

Optionally, the first target notch frequency band is set in the first frequency band or a frequency band adjacent to the first frequency band, and the second target notch frequency band is set in the third frequency band or a frequency band adjacent to the third frequency band.

With respect to the first target notch band and the first band, reference may be made to the description of the first embodiment.

For the second target trapped wave frequency band and the third frequency band, when the third frequency band is 2.4-2.5 GHz, setting at least part of the second target trapped wave frequency band within 2.4-2.5 GHz; or the third frequency band is 5.15-5.85 GHz, and at least part of the second target notch frequency band is set within 5.15-5.85 GHz, namely at least part of the second target notch frequency band is overlapped with the third frequency band.

However, if the first radiator 110 and the second radiator 120 operate at the same frequency, radio frequency interference may be generated, which may affect the performance of the two radiators. The second target notch frequency is set near the frequency band adjacent to the third frequency band, which can also play the above-mentioned notch function and reduce the generation of radio frequency interference.

Optionally, the second target notch frequency band is greater than the third frequency band, that is, the minimum frequency of the second target notch frequency band is greater than the maximum frequency of the third frequency band; or the second target notch frequency band is smaller than the third frequency band, i.e. the maximum frequency of the second target notch frequency band is smaller than the minimum frequency of the third frequency band.

When the second target notch frequency band is greater than the third frequency band and the difference between the minimum frequency of the second target notch frequency band and the maximum frequency of the third frequency band is within 0.15GHz, the second radiator 120 can effectively generate a notch function on the first radiator 110 operating in the third frequency band.

For example, where the third frequency band includes 2.4 to 2.5GHz, the corresponding second target notch frequency band may include N GHz to M GHz (2.5-N-woven-2.65-N-woven-M). The frequency Band comprises Band41 (2.5-2.69 GHz) in the LTE-4G frequency Band.

When the second target notch frequency band is smaller than the third frequency band and the difference between the maximum frequency of the second target notch frequency band and the minimum frequency of the third frequency band is within 0.15GHz, the second radiator 120 can effectively generate a notch function on the first radiator 110 operating in the third frequency band.

For example, where the third frequency band includes 2.4-2.5 GHz, the corresponding second target notch frequency band may include M GHz-N GHz (2.25-N-woven-cloth-2.4-M-woven-cloth-N). The frequency Band comprises Band40 (2.3-2.4 GHz) in an LTE-4G frequency Band.

When the third frequency band includes 5.15 to 5.85GHz, the corresponding second target notch frequency band may include M GHz to N GHz (5-N-woven-5.15-M-woven-N). The frequency band includes an N79 frequency band (4.4 to 5 GHz) in the NR-5G frequency band.

In other embodiments, the difference between the minimum frequency of the second target notch frequency band and the maximum frequency of the third frequency band may also be greater than 0.15GHz, and the difference between the maximum frequency of the second target notch frequency band and the minimum frequency of the third frequency band may also be greater than 0.15GHz, and the notch effect may be slightly worse than the above range.

Therefore, in this embodiment, the first radiator 110 can operate in two different frequency bands, for example, 2.4GHz and 5GHz, of the first frequency band and the second frequency band. The second radiator 120 can tune the operating frequency band to the first target notch frequency band or the second notch frequency band, so that the radiation field generated by the first radiator 110 operating in two different frequency bands, namely the first frequency band and the second frequency band, has directivity.

Since the radiation fields of the first radiators 110 at different frequency bands are different, some radiation fields are farther than some radiation fields, or are more penetrating. In the present invention, the first radiator 110 in multiple modes can be used as a probe antenna, which improves the practicability of the antenna apparatus 100.

Referring to fig. 5, fig. 5 is a schematic structural diagram of an antenna device according to a fourth embodiment of the present application.

In this embodiment, the antenna device 100 may include a first radiator 110, a second radiator 120, and a third radiator 130 for transceiving signals, and the first radiator 110, the second radiator 120, and the third radiator 130 may be capable of radiating electromagnetic waves to the surroundings.

The first radiator 110 is provided with a first grounding point 113 and a first feeding point 112, the first grounding point 113 is grounded, the first feeding point 112 is electrically connected with the first radiator tuning control unit 114, the first radiator tuning control unit 114 is electrically connected with the first feeding source 111, and the first radiator 110 is configured to operate in the first frequency band or the fourth frequency band. In other embodiments, the first radiator tuning control unit 114 may also be disposed between the first ground point 113 and ground.

The third radiator 130 is provided with a third grounding point 133 and a third feeding point 134, the third grounding point 133 is grounded, the third feeding point 134 is electrically connected to the second tuning control unit 132, the second tuning control unit 132 is electrically connected to the third power supply 131, and the third radiator 130 is configured to operate in a fifth frequency band. In other embodiments, the second tuning control unit 132 may also be arranged between the third grounding point 133 and ground.

The first frequency band, the second frequency band, and the fifth frequency band are different frequency bands, so that when the antenna device 100 is disposed on an electronic device, the multiple frequency bands of the antenna device 100 expand the adaptability and scalability of the electronic device to different frequency bands.

Alternatively, the first radiator tuning control unit 114, the first tuning control unit 122, or the second tuning control unit 132 may be composed of a switch control unit and/or a load circuit, or may be composed of a tunable capacitor and/or a tunable inductor. In an embodiment, the switch control unit may be a switch chip with a switching function, and may also be a single-pole multi-throw switch or a single-pole single-throw switch.

In this embodiment, the first radiator tuning control unit 114 may adjust the operating frequency band of the first radiator 110, and switch the operating frequency band of the first radiator 110 between the first frequency band and the fourth frequency band.

The first tuning control unit 122 may adjust the operating frequency band of the second radiator 120, and adjust the second frequency band to the first target notch frequency band.

The second tuning control unit 132 may adjust the operating frequency band of the third radiator 130, and adjust the fifth frequency band to operate within the third target notch frequency band.

When the second radiator 120 is in the first target notch frequency band, the second radiator 120 can generate a notch function for the first radiator 110 operating in the first frequency band. When the third radiator 130 is in the third target notch frequency band, the third radiator 130 may generate a notch function for the first radiator 110 operating in the fourth frequency band.

The second radiator 120 weakens a radiation field generated by the first radiator 110 in a partial direction when the first radiator 110 operates in the first frequency band, or the third radiator 130 weakens a radiation field generated by the first radiator 110 in a partial direction when the first radiator 110 operates in the fourth frequency band, so that the radiation field of the first radiator 110, which originally has radiation omnidirectionality, in the direction of the second radiator 120 or the third radiator 130 is partially shielded, and the radiation field generated by the first radiator 110 in the first frequency band or the fifth frequency band does not have omnidirectionality any more.

Optionally, the first target notch frequency band is set in the first frequency band or a frequency band adjacent to the first frequency band, and the third target notch frequency band is set in the fifth frequency band or a frequency band adjacent to the fifth frequency band.

For the third target trapped wave frequency band and the fourth frequency band, when the fourth frequency band is 2.4-2.5 GHz, setting at least part of the third target trapped wave frequency band within 2.4-2.5 GHz; or the fourth frequency band is 5.15-5.85 GHz, and at least part of the third target notch frequency band is set within 5.15-5.85 GHz, namely at least part of the third target notch frequency band is overlapped with the fourth frequency band.

However, if the first radiator 110 and the third radiator 130 operate at the same frequency, radio frequency interference may be generated, which may affect the performance of the two radiators. Setting the third target notch frequency near the frequency band adjacent to the fourth frequency band can also perform the notch function, and reduce the generation of radio frequency interference.

Optionally, the third target notch frequency band is greater than the fourth frequency band, that is, the minimum frequency of the third target notch frequency band is greater than the maximum frequency of the fourth frequency band; or the third target notch frequency band is smaller than the fourth frequency band, that is, the maximum frequency of the third target notch frequency band is smaller than the minimum frequency of the fourth frequency band.

When the third target notch frequency band is greater than the fourth frequency band and the difference between the minimum frequency of the third target notch frequency band and the maximum frequency of the fourth frequency band is within 0.15GHz, the second radiator 120 can effectively generate a notch function on the first radiator 110 operating in the fourth frequency band.

For example, where the fourth frequency band includes 2.4 to 2.5GHz, the corresponding third target notch frequency band may include N GHz to M GHz (2.5-N-woven-over-2.65-N-woven-over-M). The frequency Band comprises Band41 (2.5-2.69 GHz) in the LTE-4G frequency Band.

When the third target notch frequency band is smaller than the fourth frequency band and the difference between the maximum frequency of the third target notch frequency band and the minimum frequency of the fourth frequency band is within 0.15GHz, the second radiator 120 can effectively generate a notch function on the first radiator 110 operating in the fourth frequency band.

For example, where the fourth frequency band includes 2.4 to 2.5GHz, the corresponding third target notch frequency band may include M GHz to N GHz (2.25-N-woven-over-2.4-M-woven-over-N). The frequency Band comprises Band40 (2.3-2.4 GHz) in the LTE-4G frequency Band.

Where the fourth frequency band comprises 5.15 to 5.85GHz, a corresponding third target notch frequency band may comprise M GHz to N GHz (5-N-type (5-15) N-type (M-type) N). The frequency band includes an N79 frequency band (4.4 to 5 GHz) in the NR-5G frequency band.

In other embodiments, the difference between the minimum frequency of the third target notch frequency band and the maximum frequency of the fourth frequency band may be greater than 0.15GHz, and the difference between the maximum frequency of the third target notch frequency band and the minimum frequency of the fourth frequency band may be greater than 0.15GHz, so that the notch effect may be slightly worse than the above range.

In this embodiment, the second radiator 120 and the third radiator 130 can generate a notch effect on different frequency bands of the first radiator 110. In an MIMO system of an actual electronic device, in order to ensure an original communication function of an antenna, a plurality of working frequency bands of one antenna may not be able to perform a notch function on a plurality of frequency bands of another antenna, so that a plurality of antennas may be used to generate a notch function on different frequency bands of one antenna, so that the antenna has directivity in different frequency bands, and the practicability of the antenna apparatus 100 is improved.

Referring to fig. 6, fig. 6 is a schematic structural diagram of an antenna device according to a fifth embodiment of the present application.

In this embodiment, the antenna device 100 may include a first radiator 110, a second radiator 120 and a fourth radiator 140 for transceiving signals, and the first radiator 110, the second radiator 120 and the fourth radiator 140 may be capable of radiating electromagnetic waves to the periphery.

The first radiator 110 is provided with a first grounding point 113 and a first feeding point 112, the first feeding point 112 is electrically connected to the first power supply 111, the first grounding point 113 is grounded, and the first radiator 110 is configured to operate in a first frequency band.

The fourth radiator 140 is provided with a fourth grounding point 143 and a fourth feeding point 142, the fourth feeding point 142 is electrically connected to the fourth power supply 141, the fourth grounding point 143 is grounded, and the fourth radiator 140 is configured to operate in the sixth frequency band.

The second radiator 120 is configured to operate in a second frequency band. The second frequency band and the first frequency band are different frequency bands, so that the first radiator 110 and the second radiator 120 can operate in different frequency bands.

The first frequency band, the second frequency band and the sixth frequency band are different frequency bands, so that when the antenna device 100 is arranged on an electronic device, the multiple frequency bands of the antenna device 100 expand the adaptability and the scalability of the electronic device to the different frequency bands.

In this embodiment, the first tuning control unit 122 is mainly used to change the resonant mode of the second radiator 120 in order to meet the requirement of multiple bands of the second radiator 120.

Alternatively, the first tuning control unit 122 may be composed of a switching control unit and/or a load circuit, or may be composed of a tunable capacitor and/or a tunable inductor. In an embodiment, the switch control unit may be a switch chip with a switching function, and may also be a single-pole multi-throw switch or a single-pole single-throw switch.

In this embodiment, the first tuning control unit 122 may adjust the operating frequency band of the second radiator 120, and adjust the second frequency band to the first target notch frequency band or the fourth target notch frequency band.

When the second radiator 120 is in the first target notch frequency band, the second radiator 120 can generate a notch function for the first radiator 110 operating in the first frequency band. When the second radiator 120 is in the fourth target notch frequency band, the second radiator 120 may generate a notch function for the fourth radiator 140 operating in the sixth frequency band.

When the second radiator 120 is in the first target notch frequency band, the second radiator 120 weakens the radiation field generated in a part of directions when the first radiator 110 works in the first frequency band, so that the radiation field of the first radiator 110, which originally has radiation omnidirectionality, in the direction of the second radiator 120 is partially shielded, and the radiation field of the first radiator 110 no longer has omnidirectionality; when the second radiator 120 is located in the fourth target notch frequency band, the second radiator 120 weakens a radiation field generated in a partial direction by the fourth radiator 140 when operating in the sixth frequency band, so that the radiation field of the fourth radiator 140, which originally has radiation omnidirectionality, in the direction of the second radiator 120 is partially shielded, and the radiation field of the fourth radiator 140 no longer has omnidirectionality.

And for the fourth target trapped wave frequency band and the sixth frequency band, when the sixth frequency band is 2.4-2.5 GHz, setting at least part of the fourth target trapped wave frequency band within 2.4-2.5 GHz; or the sixth frequency band is 5.15-5.85 GHz, and at least part of the fourth target notch frequency band is set within 5.15-5.85 GHz, namely at least part of the fourth target notch frequency band is overlapped with the sixth frequency band.

However, if the fourth radiator 140 and the second radiator 120 operate at the same frequency, radio frequency interference may be generated, which may affect the performance of the two radiators. Setting the fourth target notch frequency near the frequency band adjacent to the sixth frequency band can also perform the notch function, and reduce the generation of radio frequency interference.

Optionally, the fourth target notch frequency band is greater than the sixth frequency band, that is, the minimum frequency of the fourth target notch frequency band is greater than the maximum frequency of the sixth frequency band; or the fourth target notch frequency band is smaller than the sixth frequency band, i.e. the maximum frequency of the fourth target notch frequency band is smaller than the minimum frequency of the sixth frequency band.

When the fourth target notch frequency band is greater than the sixth frequency band and the difference between the minimum frequency of the fourth target notch frequency band and the maximum frequency of the sixth frequency band is within 0.15GHz, the second radiator 120 can effectively generate a notch function on the first radiator 110 operating in the sixth frequency band.

For example, when the sixth frequency band includes 2.4 to 2.5GHz, the corresponding fourth target notch frequency band may include N GHz to M GHz (2.5N-woven-2.65N-woven-M). The frequency Band comprises Band41 (2.5-2.69 GHz) in the LTE-4G frequency Band.

When the fourth target notch frequency band is smaller than the sixth frequency band and the difference between the maximum frequency of the fourth target notch frequency band and the minimum frequency of the sixth frequency band is within 0.15GHz, the second radiator 120 can effectively generate a notch function on the first radiator 110 operating in the sixth frequency band.

For example, where the sixth frequency band comprises 2.4-2.5 GHz, the corresponding fourth target notch frequency band may comprise M GHz-N GHz (2.25-N-woven-cloth-2.4-M-woven-cloth-N). The frequency Band comprises Band40 (2.3-2.4 GHz) in an LTE-4G frequency Band.

When the sixth frequency band includes 5.15 to 5.85GHz, the corresponding fourth target notch frequency band may include M GHz to N GHz (5-N-woven 5.15-M-woven N). The frequency band includes an N79 frequency band (4.4 to 5 GHz) of the NR-5G frequency band.

In other embodiments, the difference between the minimum frequency of the fourth target notch frequency band and the maximum frequency of the sixth frequency band may also be greater than 0.15GHz, and the difference between the maximum frequency of the fourth target notch frequency band and the minimum frequency of the sixth frequency band may also be greater than 0.15GHz, and the notch effect may be slightly worse than the above range.

In the present embodiment, the second radiator 120 can generate a notch effect to different radiators of the first radiator 110 and the fourth radiator 140. Because each antenna may have different working frequency bands in the MIMO system of the actual electronic device, for different working frequency bands, a single antenna can be used to generate a notch function for antennas of multiple different frequency bands under this embodiment, so that multiple antennas can have directivity in different frequency bands, and the space of the electronic device is saved.

Referring to fig. 7, fig. 7 is a schematic structural diagram of an antenna device according to a sixth embodiment of the present application.

In this embodiment, the antenna device 100 may include a first radiator 110, a second radiator 120, and a fifth radiator 150 for transceiving signals, and the first radiator 110, the second radiator 120, and the fifth radiator 150 may be capable of radiating electromagnetic waves to the surrounding.

The first radiator 110 is provided with a first grounding point 113 and a first feeding point 112, the first grounding point 113 is grounded, the first feeding point 112 is electrically connected with the first radiator tuning control unit 114, the first radiator tuning control unit 114 is electrically connected with the first feeding source 111, and the first radiator 110 is configured to operate in the first frequency band or the seventh frequency band. In other embodiments, the first radiator tuning control unit 114 may also be disposed between the first ground point 113 and ground.

The fifth radiator 150 has a fifth ground point 153 and a fifth feeding point 152, the fifth feeding point 152 is electrically connected to the fifth power supply 151, the fifth ground point 153 is grounded, and the fifth radiator 150 is configured to operate in the eighth frequency band.

The first frequency band, the second frequency band, and the eighth frequency band are different frequency bands, so that when the antenna device 100 is disposed on an electronic device, the multiple frequency bands of the antenna device 100 expand the adaptability and scalability of the electronic device to different frequency bands.

In this embodiment, the first radiator tuning control unit 114 may adjust the operating frequency band of the first radiator 110, and switch the operating frequency band of the first radiator 110 between the first frequency band and the seventh frequency band.

When the second radiator 120 is in the first target notch frequency band, the second radiator 120 can generate a notch function for the first radiator 110 operating in the first frequency band.

When the fifth radiator 150 is in the eighth frequency band, the trap function can be generated in the fifth radiator 150 for the first radiator 110 operating in the seventh frequency band.

The second radiator 120 weakens a radiation field generated by the first radiator 110 in a partial direction when the first radiator 110 works in the first frequency band, or the fifth radiator 150 weakens a radiation field generated by the first radiator 110 in a partial direction when the first radiator 110 works in the seventh frequency band, so that the radiation field of the first radiator 110, which originally has radiation omnidirectionality, in the direction of the second radiator 120 is partially shielded, and the radiation field generated by the first radiator 110 when the first radiator works in the first frequency band or the seventh frequency band no longer has omnidirectionality.

Optionally, the first target notch frequency band is set within the first frequency band or a frequency band adjacent to the first frequency band. With respect to the first target notch band and the first band, reference may be made to the description of the first embodiment.

Since the fifth radiator 150 operates in the fixed frequency band, and the effective electrical length of the fifth radiator 150 operating in the eighth frequency band is a quarter of the wavelength of the seventh frequency band in which the first radiator operates, the fifth radiator 150 establishes a high impedance interface at the seventh frequency wavelength, so that a radiation field generated in part of directions by the first radiator 110 when operating in the seventh frequency band is reduced.

Compared to the first embodiment, in the present embodiment, the fifth radiator 150 is added, and the fifth radiator 150 and the second radiator 120 can respectively radiate fields of the first radiator 110 in different frequency bands.

Because, in the MIMO system of the electronic device, some antennas without the frequency band tuning function still have the opportunity to perform a notch function on other antennas, the radiation field of some antennas in a specific frequency band has directivity. The present embodiment provides the possibility for these antennas.

Referring to fig. 8, fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present application. The electronic device 200 may include a display screen 30 for displaying information, a middle frame assembly 40 for mounting the display screen 30 on one side, a circuit board 50 mounted on the middle frame assembly 40, a battery 60 mounted on the middle frame assembly 40, and a rear cover 70 snap-coupled to the other side of the middle frame assembly 40.

In some embodiments, the electronic device 200 may include, but is not limited to, an electronic device having a communication function, such as a mobile phone, an internet device (MID), an electronic book, a Portable Player Station (PSP), or a Personal Digital Assistant (PDA).

The display 30 may be a Liquid Crystal Display (LCD) or an organic light-emitting diode (OLED) display, and the like, for displaying information and pictures.

The material of the middle frame assembly 40 may be a metal such as magnesium alloy, aluminum alloy, stainless steel, etc., but the material is not limited thereto and may be other materials. The middle frame assembly 40 may be disposed between the display screen 30 and the rear cover 70. The center frame assembly 40 may be used to carry the display screen 30. The middle frame assembly 40 is snap-fit connected with the rear cover 70 to form an outer contour of the electronic device 200 and an accommodating cavity is formed inside. The accommodation chamber may be used to accommodate electronic components such as a camera, a circuit board 50, a battery 60, a processor, and various types of sensors in the electronic apparatus 200.

The circuit board 50 is mounted in the receiving cavity, and may be mounted at any position in the receiving cavity. The circuit board 50 may be a main board of the electronic device 200. The processor of the electronic device 200 may be provided on the circuit board 50. One, two or more functional components such as a motor, a microphone, a speaker, a receiver, an earphone interface, a universal serial bus interface (USB interface), a camera, a distance sensor, an ambient light sensor, and a gyroscope may also be integrated on the circuit board 50. Meanwhile, the display screen 30 may be electrically connected to the circuit board 50.

The battery 60 is mounted in the receiving cavity and may be mounted at any position in the receiving cavity. The battery 60 may be electrically connected to the circuit board 50 to enable the battery 60 to power the electronic device 200. The circuit board 50 may be provided with a power management circuit. The power management circuit is used to distribute the voltage provided by the battery 60 to various electronic components in the electronic device 200, such as the display screen 30.

The back cover 70 may be formed of the same material as the center frame assembly 40, although other materials may be used. The rear cover 70 may be integrally formed with the center frame assembly 40. In some embodiments, the back cover 70 may wrap around the center frame assembly 40 and may carry the display screen 30. Rear cover 70 is last to form rear camera hole, fingerprint identification module mounting hole isotructure.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Referring to fig. 9 and 10, fig. 9 is a schematic structural diagram of the middle frame assembly in fig. 8, and fig. 10 is a schematic structural diagram of the antenna device mounted on the middle frame assembly in fig. 8. The middle frame assembly 40 may include a substrate 41 for carrying the display screen 30 and a bezel 42 surrounding the substrate 41. The substrate 41 is disposed opposite to the rear cover 70. The rim 42 may be adapted to snap fit with the rear cover 70. That is, the substrate 41, the frame 42, and the rear cover 70 are surrounded to form a housing chamber.

The substrate 41 may be a conductive metal, but may be other materials. The substrate 41 may be provided with a ground plane and a power supply. In some embodiments, the ground plane and the power supply may not be disposed on the substrate 41, but directly disposed on the circuit board 50.

The bezel 42 may be a conductive metal, so the bezel 42 may also be referred to as a "metal bezel". Although the frame 42 may be other materials. The frame 42 may include a first frame 421, a second frame 422, a third frame 423, and a fourth frame 424 connected end to end in sequence. The first frame 421, the second frame 422, the third frame 423, and the fourth frame 424 surround the substrate 41 and can be connected and fixed with the substrate 41.

In some embodiments, the first frame 421, the second frame 422, the third frame 423, and the fourth frame 424 surround to form a rounded rectangle. Of course, other shapes are possible, such as circular, triangular. In some embodiments, the first frame 421 is disposed opposite to the third frame 423, and the second frame 422 is disposed opposite to the fourth frame 424.

The middle frame assembly 40 and the rear cover 70 may constitute a housing assembly. And the housing assembly may not be limited to the middle frame assembly 40 and the rear cover 70. The housing assembly may be attached, bonded, clamped, snapped, welded, etc. to the antenna assembly 100.

In some embodiments, the antenna device may be machined from the housing assembly. For example, the antenna device 100 may be formed by a frame 42, such as a first frame 421 and a second frame 422.

It is understood that in other embodiments, the names "first border", "second border", "third border", "fourth border", and "border" in the above embodiments may be converted to each other, for example, the "first border" may be converted to the "second border", and correspondingly, the "second border" may be converted to the "first border".

Specifically, the antenna device disposed on the case assembly may include a first radiator 110, a second radiator 120, a third radiator 130, and a fifth radiator 150.

At least one of the second radiator 120, the fifth radiator 150, and the third radiator 130 can reduce a radiation field generated by the first radiator 110 in a partial direction under the operating frequency band, so that the radiation field generated by the first radiator 110 under the operating frequency band no longer has an omni-directionality.

The numbers of the first radiator 110, the second radiator 120, and the third radiator 130 are not limited to the numbers in fig. 10, and the number of the first radiator 110 may be one or more, the number of the second radiator 120 may be one or more, and the number of the third radiator 130 may be one or more, or may not include the fifth radiator 150. Those skilled in the art may substitute the structure based on actual use, the structures of the first radiator 110, the second radiator 120, the third radiator 130 and the fifth radiator are not limited to the structure in fig. 10, the above antenna device embodiment has given corresponding modified structures, and those skilled in the art may substitute the structures based on actual use.

In the electronic equipment of this embodiment, owing to be provided with the antenna device of this application, electronic equipment can accurate detection space on unknown signal, has strengthened electronic equipment and has had the ability of detecting the signal.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings, or which are directly or indirectly applied to other related technical fields, are intended to be included within the scope of the present application.

Claims

1. An antenna device, comprising:

a first radiator configured to operate within a first frequency band; and

the second radiator is configured to operate in a second frequency band and is electrically connected with the first tuning control unit, the first tuning control unit is used for receiving an excitation signal or grounding, and the first tuning control unit is used for adjusting the second frequency band to a first target trapped wave frequency band so as to weaken a radiation field generated by the first radiator in a part of directions when the first radiator operates in the first frequency band.

2. The antenna device of claim 1,

the first radiator is also configured to operate in a third frequency band;

the first tuning control unit is configured to adjust the second frequency band to a second target notch frequency band, so as to weaken a radiation field generated by the first radiator in a partial direction when the first radiator operates in the third frequency band.

3. The antenna device of claim 1,

the first radiator is also configured to operate in a fourth frequency band;

the antenna device further comprises a third radiator, wherein the third radiator is configured to work in a fifth frequency band and is electrically connected with a second tuning control unit, the second tuning control unit is used for receiving an excitation signal or grounding and adjusting the fifth frequency band to a third target trapped wave frequency band so as to weaken a radiation field generated in a part of directions when the first radiator works in the fourth frequency band.

4. The antenna device of claim 1,

the antenna arrangement further comprises a fourth radiator configured to operate in a sixth frequency band;

the first tuning control unit is configured to adjust the second frequency band to a fourth target notch frequency band to reduce a radiation field generated by the fourth radiator in a partial direction when the fourth radiator operates in the sixth frequency band.

5. The antenna device of claim 1,

the first radiator is also configured to operate in a seventh frequency band;

the antenna device further includes a fifth radiator configured to operate in an eighth frequency band, so as to reduce a radiation field generated in a part of directions when the first radiator operates in the seventh frequency band, where an effective electrical length of the fifth radiator operating in the eighth frequency band is a quarter of a wavelength of the first radiator operating in the seventh frequency band.

6. The antenna device according to any one of claims 1 to 5,

at least part of the first target notch frequency band is located within the first frequency band.

7. The antenna device according to any one of claims 1 to 5,

the minimum frequency of the first target notch frequency band is greater than the maximum frequency of the first frequency band, and the difference is within 0.15 GHz; or

The maximum frequency of the first target notch frequency band is smaller than the minimum frequency of the first frequency band by a difference within 0.15 GHz.

8. The antenna device according to claim 7,

the first frequency Band comprises 2.4-2.5 GHz, and the first target notch frequency Band comprises a Band40 frequency Band and/or a Band41 frequency Band in an LTE-4G frequency Band.

9. The antenna device according to claim 7,

the first frequency band includes 5.15 to 5.85GHz, and the first target notch frequency band includes an N79 frequency band of an NR-5G frequency band.

10. An electronic device, comprising:

a display screen;

a housing assembly for mounting the display screen; and

an antenna device as claimed in any one of claims 1 to 9, provided in the housing assembly.