CN108598683B - Antenna assembly and terminal - Google Patents

Antenna assembly and terminal Download PDF

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Publication number
CN108598683B
CN108598683B CN201810525478.4A CN201810525478A CN108598683B CN 108598683 B CN108598683 B CN 108598683B CN 201810525478 A CN201810525478 A CN 201810525478A CN 108598683 B CN108598683 B CN 108598683B
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switch
antenna
segment
radiator
frequency
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CN108598683A (en
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苏巾槐
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors

Abstract

The present disclosure relates to an antenna assembly and a terminal, the antenna assembly including: the first feed end is connected to the first section through a variable capacitor, the first ground end is connected to the first section through a first switch, and a gap is formed between the first section and the second section; the inverted F antenna covers low-frequency and medium-frequency bands and realizes a high-frequency MIMO function through the switching of the first switch and the capacitance value change of the variable capacitor; a second grounding end of the three-ring LOOP antenna is connected to a second radiator through a second switch, and one branch in the second radiator is connected with the first capacitor or the second capacitor through a third switch; the three LOOP antennas cover a high-frequency band through the switch switching of the second switch and the third switch, and the medium-frequency MIMO function is realized. The technical scheme can have good low, medium and high frequency radiation efficiency in a smaller clearance environment, and can realize the function of diversity antenna MIMO.

Description

Antenna assembly and terminal
Technical Field
The present disclosure relates to the field of antennas, and in particular, to an antenna assembly and a terminal.
Background
A terminal with a full screen has become a design trend, and when the screen is enlarged, the main antenna is required to not only implement signal radiation of low, medium and high frequency bands of the main antenna, but also have a function of a diversity antenna MIMO (Multiple-input Multiple-Output) to improve the receiving capability of the whole signal (increase the bandwidth and transmission rate of the signal). These all present challenges to the terminal antenna design, especially for the main antenna located at the lower part of the terminal, the overall screen reduces the terminal antenna headroom, resulting in a narrower operating bandwidth of the antenna, and the MIMO function of the main antenna itself will require more operating bandwidth. Therefore, how to use the existing structure to make the best antenna becomes more and more realistic.
Disclosure of Invention
The disclosed embodiment provides an antenna assembly and a terminal. The technical scheme is as follows:
according to a first aspect of embodiments of the present disclosure, there is provided an antenna assembly comprising:
the inverted-F antenna comprises a first feed end, a first grounding end and a first radiator, wherein the first radiator comprises a first segment and a second segment, and a gap is formed between the first segment and the second segment; the first feed end is connected to the first segment through a variable capacitor, the first ground end is connected to the first segment through a first switch, and the inverted-F antenna covers frequency bands of low frequency and medium frequency through switching of the first switch and capacitance value change of the variable capacitor, so that a high-frequency multiple-input multiple-output (MIMO) function is realized;
the three-ring LOOP antenna comprises a second feed end, a second grounding end and a second radiator, wherein the second grounding end is connected to the second radiator through a second switch, and one branch in the second radiator is connected with a first capacitor or a second capacitor through a third switch; and the three LOOP antennas cover a high-frequency band and realize the medium-frequency MIMO function by switching the second switch and the third switch.
In one embodiment, the first feeding end and the variable capacitor are located in a first branch of the inverted-F antenna, the first ground end and the first switch are located in a second branch of the inverted-F antenna, the first branch and the second branch are parallel, and the first branch and the second branch are perpendicular to the first segment;
when the first switch is switched to connect the first ground terminal and the first segment and the capacitance value of the variable capacitor is configured to be a first capacitance value, the inverted-F antenna covers a first low frequency band in low frequencies; when the first switch is switched to connect the first ground terminal and the first segment and the capacitance value of the variable capacitor is configured to be a second capacitance value, the inverted-F antenna covers a second low frequency band in low frequencies and a first middle frequency band in middle frequencies;
when the first switch is switched to disconnect the connection between the first ground terminal and the first segment, and the capacitance value of the variable capacitor is configured as a third capacitance value, the inverted-F antenna covers a second middle frequency band in the middle frequency band, and realizes a high-frequency multiple-input multiple-output (MIMO) function through the coupling of the first segment and the second segment.
In one embodiment, the triple LOOP antenna comprises: a first LOOP formed by the branch where the second feed end is located to the second ground end, a second LOOP formed by the branch where the second feed end is located to the third switch, and a third LOOP formed by the second feed end to the third branch;
when the third switch is turned off, the three LOOP antennas cover a first high frequency band in high frequency when the second switch is switched to connect the second ground terminal and the second radiator; when the second switch is switched to disconnect the connection between the second ground terminal and the second radiator, the three LOOP antennas cover a second high frequency band in high frequency;
when the second switch is switched to connect the second ground terminal and the second radiator, and the third switch is switched to connect the first capacitor, the three LOOP antennas implement a MIMO function of a third middle band in the middle frequency; when the third switch is switched to connect the second capacitor, the three LOOP antennas implement a MIMO function of a fourth intermediate frequency band in the intermediate frequency.
In one embodiment, the first segment comprises a first portion of a metal bezel of the terminal;
the second section includes a second portion of the metal bezel of the terminal.
In one embodiment, the second radiator includes a portion of the second segment.
In one embodiment, the range of variation of the capacitance value of the variable capacitance includes greater than 0 and less than 10 pf.
In one embodiment, the range of capacitance values of the first and second capacitances comprises greater than 0 and less than 10 pf.
In one embodiment, the third switch is a single pole double throw switch.
In one embodiment, the first ground terminal is connected to a ground line on the terminal main board through a first elastic sheet;
the second grounding end is connected with a grounding wire on the terminal mainboard through a second elastic sheet;
according to a second aspect of embodiments of the present disclosure, there is provided a terminal comprising the antenna assembly described above.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: in this embodiment, under the normal clearance of one antenna, two antennas, namely an inverted-F antenna and a three-LOOP antenna, which work independently are arranged, and these two antennas do not affect each other, and the switching of the first switch of the inverted-F antenna and the capacitance value change of the variable capacitor enable the inverted-F antenna to cover the frequency bands of low frequency and intermediate frequency, and implement the function of receiving MIMO at high frequency; this three LOOP antennas make through the switch switching of second switch, third switch three LOOP antennas cover the frequency channel of high frequency to and realize the receiving MIMO function antenna of intermediate frequency, so this antenna module can have good low-middle-high frequency radiation efficiency in less headroom environment, can also realize diversity antenna MIMO's function simultaneously, have good antenna radiation performance, overcome efficiency decline and bandwidth narrowing etc. adverse effect that the little headroom of comprehensive screen brought.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a block diagram illustrating an antenna assembly in accordance with an exemplary embodiment.
Fig. 2 is a block diagram illustrating an inverted-F antenna in accordance with an exemplary embodiment.
Fig. 3 is a block diagram illustrating a three-LOOP antenna in accordance with an exemplary embodiment.
Fig. 4 is a block diagram illustrating a terminal according to an example embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Fig. 1 is a block diagram illustrating an antenna assembly according to an exemplary embodiment, and as shown in fig. 1, the antenna assembly 1 includes an inverted-F antenna 11 and a triple LOOP antenna 12.
Here, fig. 2 is a structural diagram of an inverted F antenna 11 according to an exemplary embodiment, and as shown in fig. 2, the inverted F antenna 11 includes a first feeding terminal 111, a first grounding terminal 112, and a first radiator 113, where the first radiator 113 includes a first segment 1131 and a second segment 1132, and a gap 113A is formed between the first segment 1131 and the second segment 1132; the first feeding end 111 is connected to the first segment 1131 through a variable capacitor 114, and the variable capacitor 114 can change the capacitance value of the variable capacitor 114 through voltage; the first ground terminal 112 is connected to the first segment 1131 through a first switch 115, and the first switch 115 can be switched to connect the first ground terminal 112 and the first segment 1131 or be switched to disconnect the first ground terminal 112 and the first segment 1131. The inverted F antenna covers low-frequency and medium-frequency bands by switching the first switch 115 and changing the capacitance of the variable capacitor 114, and achieves a high-frequency MIMO receiving function.
Here, fig. 3 is a structural diagram illustrating a three-LOOP antenna according to an exemplary embodiment, and as shown in fig. 3, the three-LOOP antenna 12 includes a second feeding terminal 121, a second ground terminal 122 and a second radiator 123, the second ground terminal 122 is connected to the second radiator 123 through a second switch 124, the second switch 124 may be switched to connect the second ground terminal 122 and the second radiator 123, and the second switch 124 may be switched to disconnect the second ground terminal 122 and the second radiator 123; one branch 1231 of the second radiator 123 is connected to the first capacitor 126 or the second capacitor 127 through the third switch 125; the third switch 125 may be switched to connect the first capacitor 126, or to connect the second capacitor 127; by switching the second switch 124 and the third switch 125, the three LOOP antennas 12 cover a high-frequency band and implement an intermediate-frequency MIMO function.
Here, the three LOOP antenna has better broadband coverage performance than a single LOOP antenna, so that the three LOOP antenna can realize high-frequency signal radiation under a smaller headroom condition, and meanwhile, the newly added LOOP structure can help the three LOOP antenna to expand signal radiation bandwidth and complete signal radiation of intermediate-frequency MIMO. The bandwidth of the antenna is wider than that of a common LOOP antenna, and adverse effects of efficiency reduction, bandwidth narrowing and the like caused by small headroom of a full screen are overcome.
In this embodiment, under the normal clearance of one antenna, two antennas, namely an inverted-F antenna and a three-LOOP antenna, which work independently are arranged, and these two antennas do not affect each other, and the switching of the first switch of the inverted-F antenna and the capacitance value change of the variable capacitor enable the inverted-F antenna to cover the frequency bands of low frequency and intermediate frequency, and implement the function of receiving MIMO at high frequency; this three LOOP antennas make through the switch switching of second switch, third switch three LOOP antennas cover the frequency channel of high frequency to and realize the receiving MIMO function antenna of intermediate frequency, so this antenna module can have good low-middle-high frequency radiation efficiency in less headroom environment, can also realize diversity antenna MIMO's function simultaneously, have good antenna radiation performance, overcome efficiency decline and bandwidth narrowing etc. adverse effect that the little headroom of comprehensive screen brought.
In one possible embodiment, as shown in fig. 2, the first feeding terminal 111 and the variable capacitor 114 are located in a first branch of the inverted-F antenna 11, the first ground terminal 112 and the first switch 115 are located in a second branch of the inverted-F antenna, the first branch and the second branch are parallel, and both the first branch and the second branch are perpendicular to the first segment 1131.
As such, when the capacitance value of the variable capacitor 114 is configured as a first capacitance value when the first switch 115 is switched to connect the first ground 112 and the first segment 1131, the inverted F antenna 11 covers a first low frequency band of low frequencies; when the first switch 115 is switched to connect the first ground 112 and the first segment 1131, and the capacitance value of the variable capacitor 114 is configured as a second capacitance value, the inverted F antenna covers a second low frequency band in the low frequency and a first middle frequency band in the middle frequency; when the first switch 115 is switched to disconnect the first ground 112 from the first segment 1131 and the capacitance value of the variable capacitor 114 is configured as a third capacitance value, the inverted F antenna 11 covers the second low frequency band of the low frequency and the second middle frequency band of the middle frequency, and implements a MIMO function of high frequency through the coupling of the first segment 1131 and the second segment 1132.
For example, when the inverted F antenna 11 has the shape shown in fig. 2, and the capacitance value of the variable capacitor 114 is configured to be 8.35pf when the first switch 115 is switched to connect the first ground 112 and the first segment 1131, the inverted F antenna may cover a first low frequency band of low frequencies: GSM (Global System for Mobile Communications) 850. When the first switch 115 is switched to connect the first ground 112 and the first segment 1131, and the capacitance value of the variable capacitor 114 is configured to be 5.42pf, the inverted F antenna can cover a first low frequency band of low frequencies: GSM 900; and a first intermediate frequency band in the intermediate frequency: 2000 and 2170 MHz. When the first switch 115 is switched to disconnect the first ground 112 and the first segment 1131, and the capacitance value of the variable capacitor 114 is configured to be 9.72pf, the inverted F antenna 11 can cover a second intermediate frequency band in the intermediate frequency: 1710-; and through the coupling of the first segment and the second segment, a Multiple Input Multiple Output (MIMO) function of high frequency 2500-.
In this embodiment, a first feeding end and a variable capacitor may be disposed in a first branch of the inverted-F antenna, the first grounding end and a first switch are disposed in a second branch of the inverted-F antenna, the first branch is parallel to the second branch, and both the first branch and the second branch are perpendicular to the first segment, so that the inverted-F antenna covers multiple-input multiple-output (MIMO) functions of low frequency, intermediate frequency, and high frequency through switching of the first switch and capacitance variation of the variable capacitor; the structure is simple and easy to realize.
In one possible embodiment, as shown in fig. 3, the triple LOOP antenna 12 includes: a first LOOP formed by a branch where the second feeding end 121 is located to the second ground end 122, a second LOOP formed by a branch 1231 where the second feeding end 121 is located to the third switch 125, and a third LOOP formed by a branch 1232 where the second feeding end 121 is located to the third branch.
Here, the coverage of the three LOOP antenna 12 for high frequencies is realized by the third LOOP in fig. 3, and at this time, the third switch 125 is turned off; the bandwidth of a single LOOP antenna is narrow due to the small headroom of the full-screen terminal, and the broadband radiation of 2300 plus 2700MHz is difficult to cover, and the embodiment realizes two high-frequency bands by changing the matching value of the third LOOP mounting; when the second switch 124 is switched to connect the second ground 122 and the second radiator 123, the three LOOP antenna 12 covers a first high frequency band in high frequency; when the second switch 124 is switched to disconnect the second ground 122 from the second radiator 123, the three LOOP antenna covers a second high frequency band in high frequencies.
Here, the three LOOP antennas 12 implement the MIMO function of the intermediate frequency by the first LOOP in fig. 3, the MIMO function of the intermediate frequency is implemented by switching of the end third switch 125 of the first LOOP, the frequency offset of the intermediate frequency resonance can be changed by connecting different capacitance values in series at the third switch 125, and the three LOOP antennas implement the MIMO function of the third intermediate frequency band in the intermediate frequency when the third switch 125 is switched to connect the first capacitor 126; when the third switch 125 is switched to connect the second capacitor 127, the three LOOP antenna 12 implements a MIMO function in a fourth intermediate frequency band of the intermediate frequency.
For example, when the three LOOP antenna has the shape shown in fig. 3, and the third switch 125 is turned off, and the second switch 124 is switched to connect the second ground 122 and the second radiator 123, the three LOOP antenna 12 may cover the first high frequency BAND in high frequency, i.e., the BAND 2500-; when the second switch 124 is switched to disconnect the second ground terminal 122 from the second radiator 123, the three LOOP antenna 12 may cover the second high frequency BAND of high frequency, namely, the BAND 2300 and 2400MHz where the BAND40 operates. When the second switch 124 is switched to connect the second ground 122 and the second radiator 123, and the third switch is switched to connect the first capacitor 126 (with a capacitance of 1pf), the three LOOP antenna implements a MIMO function of a third middle band in the middle frequency, i.e., a band 2.11-2.17GHz of B1 MIMO DRX operation; when the third switch is switched to connect the second capacitor (with a capacitance of 3.9pf), the triple LOOP antenna 12 implements the MIMO function of the fourth middle band of the intermediate frequency, i.e., the band 1.805-1.88GHz for B3 MIMO DRX operation.
In this embodiment, the first LOOP formed by the branch where the second feeding end is located to the second ground end, the second LOOP formed by the branch where the second feeding end is located to the third switch, and the third LOOP formed by the second feeding end to the third branch may be used, so that the MIMO function of high frequency and intermediate frequency is covered by the three LOOP antennas through the switching of the second switch and the third switch, and the structure is simple and easy to implement.
In one possible embodiment, as shown in fig. 1 or fig. 2, the first section 1131 includes a first portion of the metal frame of the terminal; the second segment 1132 includes a second portion of the metal bezel of the terminal.
Referring to fig. 1 and 2, when the terminal is a terminal having a metal bezel, a first portion of the metal bezel of the terminal may be selected as a first segment 1131, and a second portion of the metal bezel of the terminal may be selected as a second segment 1132. As shown in fig. 2, a slot 113A is formed between the first segment 1131 and the second segment 1132, and a slot 113B is also formed at the other end of the first segment 1131, and the slot 113B facilitates the radiation of the antenna signal to the free space.
Here, the other portions of the inverted F antenna and the triple LOOP antenna may be fabricated by an LDS (Laser direct structuring) technique.
In the embodiment, a part of the metal frame of the terminal can be used as the first segment and the second segment, and the existing metal frame is used as the antenna, so that the occupied space of the antenna is reduced.
In one possible implementation, referring to fig. 1, 2 and 3, the second radiator 123 includes a portion of the second segment 1132.
Here, referring to fig. 1, 2 and 3 in combination, the third LOOP in the second radiator 123 includes a portion of the second segment 1132, and the portion shared by the second radiator 123 and the second segment 1132 may be a metal bezel of the terminal.
In this embodiment, the second radiator includes a part of the second segment, so that the second radiator and the second segment share a part of the circuit, and the occupied space of the antenna is reduced.
In one possible embodiment, the capacitance value variation range of the variable capacitor includes more than 0 and less than 10 pf.
The capacitance value of the variable capacitor in the embodiment is larger than 0 and smaller than 10pf, and the capacitance value is changed between 0 and 10pf, so that the antenna component has better performance.
In one possible embodiment, the range of capacitance values of the first and second capacitors includes more than 0 and less than 10 pf.
In this embodiment, the capacitance values of the first capacitor and the second capacitor are greater than 0 and smaller than 10pf, and the capacitance values are varied from 0 to 10pf, so that the antenna assembly has better performance.
In one possible embodiment, as shown in fig. 3, the third switch 125 is a single pole double throw switch. As such, the third switch 125 may be switched such that the branch 1231 is connected to the first capacitor 126, or switched such that the branch 1231 is connected to the second capacitor 127.
The third switch in this embodiment is a single-pole double-throw switch, and thus can be switched to connect the first capacitor or to connect the second capacitor, which is simple to implement.
In a possible embodiment, the first ground terminal 112 is connected to a ground line on the terminal motherboard through a first elastic sheet; the second ground terminal 122 is connected to a ground line on the terminal motherboard through a second elastic sheet.
In the implementation, the first grounding end is connected with a grounding wire on the terminal mainboard through the first elastic sheet; the second grounding terminal is connected with the grounding wire on the terminal mainboard through the second elastic sheet, so that the grounding of the first grounding terminal and the second grounding terminal is realized, and the realization is simple.
The embodiment also provides a terminal, which includes the above antenna assembly 1, the terminal may be a full-screen terminal with small headroom, the antenna assembly 1 may be located at the lower part of the terminal, two types of antennas, namely an F antenna and a triple LOOP antenna, are configured in a space of one antenna, and the two antennas do not affect each other; the antenna assembly can not only cover the low, medium and high frequency signal radiation requirements of the main antenna, but also meet the MIMO receiving requirement of the diversity antenna, and has excellent 2G, 3G and 4G antenna radiation performance.
Fig. 4 is a block diagram illustrating a terminal according to an example embodiment, for example, the terminal 400 may be a mobile phone, a game console, a computer, a tablet device, a personal digital assistant, and the like.
The apparatus 400 may include one or more of the following components: processing component 401, memory 402, power component 403, multimedia component 404, audio component 405, input/output (I/O) interface 406, sensor component 407, and communication component 408.
The processing component 401 generally controls overall operation of the device 400, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 401 may include one or more processors 420 to execute instructions to perform all or a portion of the steps of the methods described above. Further, processing component 401 may include one or more modules that facilitate interaction between processing component 401 and other components. For example, the processing component 401 may include a multimedia module to facilitate interaction between the multimedia component 404 and the processing component 401.
The memory 402 is configured to store various types of data to support operations at the apparatus 400. Examples of such data include instructions for any application or method operating on the device 400, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 402 may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
The power supply component 403 provides power to the various components of the device 400. The power components 403 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the apparatus 400.
The multimedia component 404 includes a screen that provides an output interface between the device 400 and the user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 404 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the apparatus 400 is in an operation mode, such as a photographing mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 405 is configured to output and/or input audio signals. For example, the audio component 405 may include a Microphone (MIC) configured to receive external audio signals when the apparatus 400 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal may further be stored in the memory 402 or transmitted via the communication component 408. In some embodiments, audio component 405 also includes a speaker for outputting audio signals.
The I/O interface 406 provides an interface between the processing component 401 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
The sensor component 407 includes one or more sensors for providing various aspects of status assessment for the apparatus 400. For example, the sensor component 407 may detect the open/closed state of the apparatus 400, the relative positioning of the components, such as a display and keypad of the apparatus 400, the sensor component 407 may also detect a change in position of the apparatus 400 or a component of the apparatus 400, the presence or absence of user contact with the apparatus 400, orientation or acceleration/deceleration of the apparatus 400, and a change in temperature of the apparatus 400. The sensor assembly 407 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 407 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 407 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 408 is configured to facilitate communication between the apparatus 400 and other devices in a wired or wireless manner. The device 400 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof, the communication components including the antenna assembly shown in fig. 1; in an exemplary embodiment, the communication component 408 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 408 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the apparatus 400 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.
In an exemplary embodiment, a non-transitory computer-readable storage medium comprising instructions, such as the memory 402 comprising instructions, executable by the processor 420 of the apparatus 400 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (9)

1. An antenna assembly, comprising:
the inverted-F antenna comprises a first feed end, a first grounding end and a first radiator, wherein the first radiator comprises a first segment and a second segment, and a gap is formed between the first segment and the second segment; the first feed end is connected to the first segment through a variable capacitor, the first ground end is connected to the first segment through a first switch, and the inverted-F antenna covers frequency bands of low frequency and medium frequency through switching of the first switch and capacitance value change of the variable capacitor, so that a high-frequency multiple-input multiple-output (MIMO) function is realized;
the three-ring LOOP antenna comprises a second feed end, a second grounding end and a second radiator, wherein the second grounding end is connected to the second radiator through a second switch, and a third switch on one branch of the second radiator is grounded through a first capacitor or a second capacitor; wherein the three-LOOP antenna comprises: a first LOOP formed by the branch where the second feed end is located to the second ground end, a second LOOP formed by the branch where the second feed end is located to the third switch, and a third LOOP formed by the second feed end to the third branch; through the switch switching of second switch, third switch makes three ring LOOP antennas cover the frequency channel of high frequency to and realize the MIMO function of intermediate frequency, third LOOP in the second radiator includes partly in the second subsection, the partial radiator of first radiator with the parallel relative setting of partial radiator of second radiator, three ring LOOP antennas with a clearance area is shared to the inverted-F antenna.
2. The antenna assembly of claim 1, wherein the first feed terminal and the variable capacitance are located in a first branch of the inverted-F antenna, the first ground terminal and the first switch are located in a second branch of the inverted-F antenna, the first branch is parallel to the second branch, and the first branch and the second branch are both perpendicular to the first segment;
when the first switch is switched to connect the first ground terminal and the first segment and the capacitance value of the variable capacitor is configured to be a first capacitance value, the inverted-F antenna covers a first low frequency band in low frequencies; when the first switch is switched to connect the first ground terminal and the first segment and the capacitance value of the variable capacitor is configured to be a second capacitance value, the inverted-F antenna covers a second low frequency band in low frequencies and a first middle frequency band in middle frequencies;
when the first switch is switched to disconnect the connection between the first ground terminal and the first segment, and the capacitance value of the variable capacitor is configured as a third capacitance value, the inverted-F antenna covers a second middle frequency band in the middle frequency band, and realizes a high-frequency multiple-input multiple-output (MIMO) function through the coupling of the first segment and the second segment.
3. The antenna assembly of claim 1,
when the third switch is turned off, the three-LOOP antenna covers a first high frequency band in high frequency when the second switch is switched to connect the second ground terminal and the second radiator; when the second switch is switched to disconnect the connection between the second ground terminal and the second radiator, the three-LOOP antenna covers a second high frequency band in high frequency;
when the second switch is switched to connect the second ground terminal and the second radiator, and the third switch is switched to connect the first capacitor, the three-LOOP antenna realizes the MIMO function of a third middle band in the middle frequency; when the third switch is switched to connect the second capacitor, the three-LOOP antenna realizes the MIMO function of a fourth middle frequency band in the middle frequency.
4. The antenna assembly of claim 1,
the first segment comprises a first portion of a metal bezel of a terminal;
the second section includes a second portion of the metal bezel of the terminal.
5. The antenna assembly of claim 1, wherein a range of capacitance values of the variable capacitance comprises greater than 0 and less than 10 pf.
6. The antenna assembly of claim 1, wherein the range of capacitance values of the first and second capacitances comprises greater than 0 and less than 10 pf.
7. The antenna assembly of claim 1, wherein the third switch is a single pole double throw switch.
8. The antenna assembly of claim 1,
the first grounding end is connected with a grounding wire on the terminal mainboard through a first elastic sheet;
and the second grounding end is connected with a grounding wire on the terminal mainboard through a second elastic sheet.
9. A terminal characterized by comprising an antenna assembly according to any one of claims 1 to 8.
CN201810525478.4A 2018-05-28 2018-05-28 Antenna assembly and terminal Active CN108598683B (en)

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CN109149072B (en) * 2018-08-20 2020-11-17 瑞声科技(新加坡)有限公司 Antenna module and mobile terminal
CN111262016B (en) * 2018-11-30 2022-12-09 北京小米移动软件有限公司 Antenna and mobile terminal
CN111262015A (en) * 2018-11-30 2020-06-09 北京小米移动软件有限公司 Antenna and terminal equipment with same
CN110336116A (en) * 2019-06-28 2019-10-15 上海安费诺永亿通讯电子有限公司 A kind of terminal antenna component, antenna system and communication terminal

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CN104993241A (en) * 2015-05-21 2015-10-21 深圳市万普拉斯科技有限公司 Mobile terminal and antenna device thereof
CN205051738U (en) * 2015-07-14 2016-02-24 瑞声精密制造科技(常州)有限公司 Mobile communication device
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CN205944415U (en) * 2016-06-29 2017-02-08 广东欧珀移动通信有限公司 Antenna device and terminal equipment
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