CN111355015A - Mobile terminal - Google Patents

Mobile terminal Download PDF

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Publication number
CN111355015A
CN111355015A CN201811584913.7A CN201811584913A CN111355015A CN 111355015 A CN111355015 A CN 111355015A CN 201811584913 A CN201811584913 A CN 201811584913A CN 111355015 A CN111355015 A CN 111355015A
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CN
China
Prior art keywords
antenna
frequency
mobile terminal
circuit
low
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811584913.7A
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Chinese (zh)
Inventor
王鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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Publication date
Application filed by Beijing Xiaomi Mobile Software Co Ltd filed Critical Beijing Xiaomi Mobile Software Co Ltd
Priority to CN201811584913.7A priority Critical patent/CN111355015A/en
Publication of CN111355015A publication Critical patent/CN111355015A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/36Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/44Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/50Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00Antenna arrays or systems
    • H01Q21/0006Particular feeding systems
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00Antenna arrays or systems
    • H01Q21/30Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30Arrangements for providing operation on different wavebands
    • H01Q5/307Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/314Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
    • H01Q5/335Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors at the feed, e.g. for impedance matching
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/50Feeding or matching arrangements for broad-band or multi-band operation

Abstract

The present disclosure relates to a mobile terminal, including: a first antenna located at one end of the mobile terminal near an earpiece, the first antenna configured as a low frequency main set antenna and an intermediate/high frequency diversity antenna; a second antenna located at an end of the mobile terminal near the microphone, the second antenna configured as a low frequency diversity antenna and a mid/high frequency main set antenna. The method and the device can improve the head-to-hand OTA performance of the low-frequency antenna on the basis of ensuring that the SAR test of the mobile terminal meets the standard, and are also beneficial to realizing the CA function.

Description

Mobile terminal
Technical Field
The present disclosure relates to the field of mobile communications technologies, and in particular, to a mobile terminal.
Background
With the continuous development of mobile terminals, the current mainstream ID (industrial design) form of mobile devices such as mobile phones has evolved into a full screen combined metal middle frame mode. The metal middle frame is used as a radiator of the mobile phone antenna, the radiation efficiency of the metal middle frame is greatly reduced compared with that of a built-in antenna of a traditional plastic rear shell mobile phone, and the clearance reserved for the metal middle frame antenna by the overall screen is only about 1mm, so that the design of the mobile phone antenna with the overall metal middle frame screen faces huge challenges. More difficult, the european and american telecom operator has strict requirements for the Over-the-Air Technology (Over-the-Air Technology) performance of the mobile phone OTA (e.g., Vodafone, the largest telecom operator in europe), and its OTA admission standard needs to be based on the OTA test data in the first-hand mode, which further increases the difficulty of designing the antenna of the metal middle frame full-screen mobile phone.
Disclosure of Invention
To overcome the problems in the related art, embodiments of the present disclosure provide a mobile terminal. The technical scheme is as follows:
according to a first aspect of the embodiments of the present disclosure, there is provided a mobile terminal, including:
a first antenna located at one end of the mobile terminal near an earpiece, the first antenna configured as a low frequency main set antenna and an intermediate/high frequency diversity antenna;
a second antenna located at an end of the mobile terminal near the microphone, the second antenna configured as a low frequency diversity antenna and a mid/high frequency main set antenna.
In one embodiment, the mobile terminal further comprises a first radio frequency circuit and a first control device;
the first radio frequency circuit comprises a first switch element, a main set circuit and a diversity circuit, wherein the first switch element is used for realizing the connection between the main set circuit or the diversity circuit and the first antenna or the second antenna;
the first control device is used for controlling the first switch element to connect the main set circuit and the first antenna when the mobile terminal works in a low-frequency band, and controlling the first switch element to connect the main set circuit and the second antenna when the mobile terminal works in a medium-frequency band or a high-frequency band.
In one embodiment, the first switching element is a double pole double throw switch.
In one embodiment, the mobile terminal further comprises second radio frequency circuitry comprising a low frequency main set circuit, a low frequency diversity circuit, an intermediate/high frequency main set circuit, and an intermediate/high frequency diversity circuit;
the low-frequency main set circuit and the medium-frequency/high-frequency diversity circuit are electrically connected with the first antenna, and the low-frequency diversity circuit and the medium-frequency/high-frequency main set circuit are electrically connected with the second antenna.
In one embodiment, the first antenna includes a first feeding point, a first grounding point, and a first impedance matching circuit and a second switching element therebetween, the first impedance matching circuit includes a plurality of first paths corresponding to different frequency bands, and the second switching element is configured to switch between the plurality of first paths; and/or the presence of a gas in the gas,
the second antenna includes a second feeding point, a second grounding point, and a second impedance matching circuit and a third switching element therebetween, the second impedance matching circuit including a plurality of second paths corresponding to different frequency bands, the third switching element being configured to switch between the plurality of second paths.
In one embodiment, when the first antenna includes the second switching element and the second antenna includes the third switching element, the mobile terminal further includes a second control device;
the second control means is configured to control the second switching element to be connected to a path in a low-frequency transmission band among the plurality of first paths, and to control the third switching element to be connected to a path in a low-frequency reception band among the plurality of second paths.
In one embodiment, the second switching element and/or the third switching element is a mobile industry processor interface switch.
In one embodiment, the second switching element and/or the third switching element is a single pole, multiple throw switch.
In one embodiment, the mobile terminal further includes a metal middle frame, and a first broken seam is disposed in the first antenna and located at the top or the side of the metal middle frame.
In one embodiment, a second broken seam is arranged in the second antenna, and the second broken seam is located at the bottom of the metal middle frame.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
according to the technical scheme, on one hand, the first antenna serving as the low-frequency main set antenna is arranged at the top of the mobile terminal and is prevented from being influenced by hand holding, so that the OTA performance of the low-frequency antenna is improved, on the other hand, the second antenna serving as the intermediate-frequency/high-frequency main set antenna is arranged at the bottom of the mobile terminal, so that SAR (specific absorption Rate) test data is controlled in a safety range, and therefore the mobile terminal can meet SAR authentication standards. Therefore, the technical scheme can effectively improve the first-hand OTA performance of the low-frequency antenna on the basis of ensuring that the SAR test meets the standard, and is beneficial to realizing the CA function, so that the mobile terminal product can obtain the access qualification of an operator.
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 diagram of an OTA test model for head-hand mode shown in accordance with an exemplary embodiment;
FIG. 2 is a diagram illustrating an antenna structure distribution for a mobile terminal according to an exemplary embodiment;
FIG. 3 is a diagram illustrating a first configuration of a mobile terminal according to an exemplary embodiment;
FIG. 4 is a diagram illustrating a connection of a first RF circuit in accordance with an exemplary embodiment;
FIG. 5 is a diagram illustrating a second configuration of a mobile terminal according to an exemplary embodiment;
FIG. 6 is a diagram illustrating a connection of a second RF circuit in accordance with an exemplary embodiment;
fig. 7 is an antenna structure distribution diagram of a mobile terminal according to an exemplary embodiment;
fig. 8a is a schematic diagram of a switch configuration of a first antenna shown in accordance with an exemplary embodiment;
FIG. 8b is a schematic diagram of a switch configuration of a second antenna shown in accordance with an exemplary embodiment;
fig. 9 is a block diagram illustrating a structure for a mobile terminal according to an exemplary 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.
The technical scheme provided by the embodiment of the disclosure relates to a mobile terminal, in particular to an antenna assembly and a radio frequency module in the mobile terminal. In the related art, the mainstream ID form of a mobile device such as a mobile phone has evolved into a mode of combining a full screen with a metal middle frame, but the metal middle frame is used as a radiator of a mobile phone antenna, so that the radiation efficiency of the mobile phone is greatly reduced compared with that of a built-in antenna of a traditional mobile phone, and the clearance left for the metal middle frame antenna by the full screen is only about 1mm, so that the radiation efficiency of the antenna is poor, and particularly for a low-frequency antenna with a high radiation space requirement, the communication capability of low-frequency radiation of the antenna is more deteriorated. More difficult, the european and american telecom operators have strict requirements on the admission of the OTA performance of the mobile phone, and taking the largest european telecom operator Vodafone as an example, the OTA admission standard thereof needs to be based on the OTA test data in the head-to-hand mode, which further increases the difficulty in designing the antenna of the metal middle frame full-screen mobile phone. Fig. 1 schematically shows a diagram of an OTA test model in a head-to-hand mode. The main antenna of the traditional mobile phone is usually located at the bottom of the mobile phone, and when the OTA test of the head-to-hand mode is performed, the performance of the traditional mobile phone is rapidly deteriorated, and even obvious performance defects are presented. Based on this, the technical scheme that this disclosure embodiment provided, on the one hand through set up the first antenna as low frequency owner set antenna at mobile terminal's top, make it avoid receiving the influence of holding, thereby improve the OTA performance of low frequency antenna, on the other hand through set up the second antenna as intermediate frequency/high frequency owner set antenna at mobile terminal's bottom, in order to control SAR test data in the safety range, thereby ensure that mobile terminal can satisfy SAR authentication standard, on the other hand because low frequency owner set antenna and intermediate frequency/high frequency antenna separately set up, consequently the different frequency channels of easy control work simultaneously, thereby help realizing the CA function. Therefore, the technical scheme can effectively improve the first-hand OTA performance of the low-frequency antenna on the basis of ensuring that the SAR test meets the standard, and is beneficial to realizing the CA function, so that the mobile terminal product can obtain the access qualification of an operator.
Fig. 2 illustrates a schematic structural diagram of a mobile terminal provided in an embodiment of the present disclosure, where the mobile terminal 20 may be applied as a mobile phone. As shown in fig. 2, the mobile terminal 20 specifically includes a first antenna 20a and a second antenna 20b, the first antenna 20a is located at the top of the mobile terminal 20, i.e., at an end near the earpiece 201, and is configured as a low frequency main set antenna and a mid/high frequency diversity antenna, and the second antenna 20b is located at the bottom of the mobile terminal 20, i.e., at an end near the microphone 202, and is configured as a low frequency diversity antenna and a mid/high frequency main set antenna. It should be noted that: in this embodiment, the positions of the first antenna 20a and the second antenna 20b are set according to the habit of the user when using the mobile terminal for communication, because the hand is usually held under the mobile phone, the low frequency main set antenna needs to avoid the position, and when the medium frequency/high frequency main set antenna is located at the top of the mobile phone, the SAR test data exceeds the safety range, so the low frequency main set antenna and the high frequency main set antenna can be arranged at the bottom of the mobile phone. Experiments prove that: when the low-frequency main set antenna is positioned at the top of the mobile phone to work, the OTA test result of the head-hand mode can be improved by several dB, so that the head-hand OTA performance of the low-frequency antenna is effectively improved.
Based on the above antenna structure, specific ways of configuring the first antenna 20a at the top of the mobile terminal 20 as a low-frequency main set antenna and a mid-frequency/high-frequency diversity antenna and configuring the second antenna 20b at the bottom of the mobile terminal 20 as a low-frequency diversity antenna and a mid-frequency/high-frequency main set antenna in the embodiment of the present disclosure include the following two ways.
In the first embodiment, referring to fig. 3, the mobile terminal 20 may further include a first rf circuit 203 and a first control device in addition to the first antenna 20a and the second antenna 20 b. Specifically, the first rf circuit 203 may include a first switch element 2030, a main bus circuit 2031 and a diversity circuit 2032, wherein the first switch element 2030 may be, but is not limited to, a DPDT (Double Pole Double Throw) switch, which may be used to realize the connection between the main bus circuit 2031 or the diversity circuit 2032 and the first antenna 20a or the second antenna 20b, that is, switch between four states, i.e., the main bus circuit 2031 and the first antenna 20a, the main bus circuit 2031 and the second antenna 20b, the diversity circuit 2032 and the first antenna 20a, and the diversity circuit 2032 and the second antenna 20 b. On this basis, the first control means may control the first switching element 2030 to connect the main set circuit 2031 and the first antenna 20a when the mobile terminal 20 operates in the low frequency band so as to ensure that the first antenna 20a functions as a low frequency main set antenna, and may control the first switching element 2030 to connect the main set circuit 2031 and the second antenna 20b when the mobile terminal 20 operates in the intermediate frequency band or the high frequency band so as to ensure that the second antenna 20b functions as an intermediate/high frequency main set antenna.
As such, the present exemplary embodiment employs the first control means to control the first switch element 2030, so that the first antenna 20a can function as a low frequency main set antenna and the second antenna 20b can function as an intermediate/high frequency main set antenna, thereby improving OTA performance of the mobile terminal and ensuring that SAR test data meets safety standards.
Taking the circuit structure of the first radio frequency circuit 203 shown in fig. 4 as an example, the main set circuit 2031 may include a first combiner 401, a first main set radio frequency switch 402, a first main set filter 403, a first power amplifier 404, and a first low noise amplifier 405, and the first main set radio frequency switch 402 is divided into a first low frequency main set radio frequency switch and a first intermediate frequency/high frequency main set radio frequency switch, the diversity circuit 2032 may include a second combiner 406, a first diversity radio frequency switch 407, a first diversity filter 408, and a second low noise amplifier 409, and the first diversity radio frequency switch 407 is divided into a first low frequency diversity radio frequency switch and a first intermediate frequency/high frequency diversity radio frequency switch. The first antenna 20a and the second antenna 20b may be connected to the main set circuit 2031 and the diversity circuit 2032 through a first switch element 2030, and the switching of the connection relationship is controlled by the first switch element 2030, and the main set circuit 2031 and the diversity circuit 2032 are both connected to the radio frequency transceiver 2033. When the mobile terminal 20 operates in the low frequency band, the first low frequency main set rf switch in the main set circuit 2031 is turned on, and at this time, the first control device controls the first switch element 2030 to connect the main set circuit 2031 and the first antenna 20a, so that the first antenna 20a serves as a low frequency main set antenna, thereby ensuring the OTA performance of the antenna. When the mobile terminal 20 operates in the intermediate frequency band or the high frequency band, the first intermediate frequency/high frequency main set rf switch in the main set circuit 2031 is turned on, and at this time, the first control device controls the first switch element 2030 to connect the main set circuit 2031 and the second antenna 20b, so that the second antenna 20b is used as the intermediate frequency/high frequency main set antenna, thereby ensuring that the SAR test data meets the safety standard.
In the second embodiment, referring to fig. 5, the mobile terminal 20 may further include a second rf circuit 204 in addition to the first antenna 20a and the second antenna 20 b. Specifically, the second rf circuit 204 may include a low frequency main set circuit 2041, a low frequency diversity circuit 2042, a mid/high frequency main set circuit 2043, and a mid/high frequency diversity circuit 2044; the low-frequency main collector circuit 2041 and the if/high-frequency diversity circuit 2044 are electrically connected to the first antenna 20a to ensure that the first antenna 20a can be used as a low-frequency main collector antenna, and the low-frequency diversity circuit 2042 and the if/high-frequency main collector circuit 2043 are electrically connected to the second antenna 20b to ensure that the second antenna 20b can be used as an if/high-frequency main collector antenna.
In this way, in the exemplary embodiment, the low-frequency main set circuit 2041 and the intermediate-frequency/high-frequency diversity circuit 2044 in the second radio frequency circuit 204 are directly connected to the first antenna 20a without using DPDT, and the low-frequency diversity circuit 2042 and the intermediate-frequency/high-frequency main set circuit 2043 in the second radio frequency circuit 204 are directly connected to the second antenna 20b, so as to improve OTA performance of the mobile terminal and ensure that SAR test data meets the safety standard, which not only can avoid insertion loss and transmission line loss caused by a DPDT device, but also does not need to use the first control device to control the DPDT for switching, so that the implementation is simpler.
Taking the circuit structure of the second rf circuit 204 shown in fig. 6 as an example, the second rf circuit may include a first sub-circuit 2041 and a second sub-circuit 2042. The first sub-circuit 2041 may include a third combiner 601, a second main rf-collector switch 602, a second main rf-collector filter 603, a second power amplifier 604 and a third low noise amplifier 605, and the second main rf-collector switch 602 is divided into a second low-frequency main rf-collector switch and a second if/high-frequency main rf-collector switch, the second sub-circuit 2042 may include a fourth combiner 606, a second diversity rf-collector switch 607, a second diversity filter 608 and a fourth low noise amplifier 609, and the second diversity rf-collector switch 607 is divided into a second low-frequency diversity rf-collector switch and a second if/high-frequency diversity rf-collector switch, and the first sub-circuit 2041 and the second sub-circuit 2042 are finally connected to the second rf transceiver 2043. The first antenna 20a may be connected to the second low-frequency main rf-collecting switch in the second main rf-collecting switch 602 and the second if/high-frequency diversity rf switch in the second diversity rf-collecting switch 607 through a third combiner 601, and the second antenna 20b may be connected to the second if/high-frequency main rf-collecting switch in the second main rf-collecting switch 602 and the second low-frequency diversity rf switch in the second diversity rf-collecting switch 607 through a fourth combiner 606. When the mobile terminal 20 operates in the low frequency band, the second low frequency main set rf switch in the first sub-circuit 2041 is turned on, and at this time, the first antenna 20a serves as a low frequency main set antenna, thereby ensuring the OTA performance of the antenna. When the mobile terminal 20 operates in the intermediate frequency band or the high frequency band, the second intermediate frequency/high frequency master set rf switch in the first sub-circuit 2041 is turned on, and at this time, the second antenna 20b serves as an intermediate frequency/high frequency master set antenna, thereby ensuring that the SAR test data meets the safety standard.
It should be noted that: the structural design of the mobile terminal provided by the technical scheme of the present disclosure is applicable to various mobile phone ID forms, such as a metal middle frame mobile phone, a plastic back shell mobile phone, or a ceramic back shell mobile phone, and the present embodiment is not particularly limited thereto.
Based on this, when the mobile terminal is applied to a mobile phone with a metal middle frame and a full-screen, referring to fig. 7, a first slit 205 may be disposed in the first antenna 20a, the first slit 205 may be located at the top or the side of the metal middle frame, a second slit 206 may be disposed in the second antenna 20b, and the second slit 206 may be located at the bottom of the metal middle frame, so that the influence of the hand holding on the radiation efficiency of the antenna may be significantly reduced.
Considering that the bandwidth of the low-frequency antenna is limited and cannot meet the requirement of bandwidth coverage, a tuner (variable capacitor) is required to implement the transceiving switching and the frequency band switching of the low-frequency signal in the related art mobile phone antenna, but the tuner also causes problems, such as the cost of the device and the reliability of the vendor supply. In view of this, the disclosed solution may employ a switch structure instead of a tuner to achieve the above-mentioned functions. Fig. 8a and 8b schematically show an antenna of a mobile terminal having a switch structure.
Alternatively, referring to fig. 8a, the first antenna 20a comprises a first feeding point 801, a first grounding point 802, and a first impedance matching circuit 803 and a second switching element 804 therebetween. The first impedance matching circuit 803 includes a plurality of first paths corresponding to different frequency bands, and the second switching element 804 is switchable between the plurality of first paths.
Alternatively, referring to fig. 8b, the second antenna 20b comprises a second feeding point 805, a second grounding point 806, and a second impedance matching circuit 807 and a third switching element 808 located therebetween. The second impedance matching circuit 807 includes a plurality of second paths corresponding to different frequency bands, and the third switching element 808 is switchable between the plurality of second paths.
The second switch element 804 and the third switch element 808 may adopt a single-pole multi-throw switch or a MIPI (Mobile Industry Processor Interface) switch, and the MIPI switch may be adopted to realize any on/off (single path or multiple paths) of multiple paths, for example, two paths are simultaneously connected or other paths are arranged and combined at will, so as to realize multiple schemes of antenna matching.
It should be noted that: the first antenna 20a and the second antenna 20b may both adopt the above-mentioned antenna switch structure, or one of them may adopt the above-mentioned antenna switch structure, which is not limited in this embodiment.
Therefore, the antenna switch structure is adopted in the embodiment of the disclosure to realize the switching between different frequency bands, so as to replace the tuner adopted in the related art to realize the low-frequency signal receiving and transmitting switching function. Because the low-frequency systems are various and the low-frequency bandwidth of a single antenna cannot be completely covered, the antenna switch structure can be adopted to switch between the low-frequency transmitting frequency bands of different systems so as to achieve the optimal transmitting state.
Further, when the first antenna 20a and the second antenna 20b both adopt the above-mentioned antenna switch structure, the mobile terminal 20 may further include a second control device, which is operable to control the second switch element 804 to be connected to a path in the low-frequency transmitting band among the plurality of first paths, and control the third switch element 808 to be connected to a path in the low-frequency receiving band among the plurality of second paths, so that the low-frequency main set frequency of the first antenna 20a may be tuned to the low-frequency transmitting band, and the low-frequency diversity frequency of the second antenna 20b may be tuned to the low-frequency receiving band, so that the transmitting band and the receiving band of the low-frequency signal may be covered at the same time, thereby replacing the low-frequency signal transceiving switching function of tuner.
Taking a GSM900MHz antenna as an example, the present embodiment can implement a path design of low frequency transmitting frequency 880-915 MHz and low frequency receiving frequency 925-960 MHz based on an impedance matching circuit, and a switch element is adopted to tune the low frequency main set frequency of the first antenna 20a to the low frequency transmitting frequency band and tune the low frequency diversity frequency of the second antenna 20b to the low frequency receiving frequency band, so as to satisfy the dual requirements of low frequency transmitting and low frequency receiving.
It should be noted that: when one of the first antenna 20a and the second antenna 20b adopts the antenna switch structure in the present embodiment and the other adopts the tuner structure in the related art, it is of course also possible to tune the low frequency diversity frequency of the second antenna 20b to the low frequency reception band by tuning the low frequency main set frequency of the first antenna 20a to the low frequency transmission band, thereby achieving the dual requirements of low frequency transmission and low frequency reception.
Fig. 9 is a block diagram illustrating a structure for a mobile terminal according to an exemplary embodiment. The mobile terminal may be, for example, a mobile phone, a game console, a tablet device, a personal digital assistant, etc.
The apparatus 90 may include one or more of the following components: processing component 902, memory 904, power component 906, multimedia component 908, audio component 910, input/output (I/O) interface 912, sensor component 914, and communication component 916.
The processing component 902 generally controls overall operation of the device 90, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. Processing component 902 may include one or more processors 820 to execute instructions to perform all or a portion of the steps of the methods described above. Further, processing component 902 can include one or more modules that facilitate interaction between processing component 902 and other components. For example, the processing component 902 can include a multimedia module to facilitate interaction between the multimedia component 908 and the processing component 902.
The memory 904 is configured to store various types of data to support operation at the apparatus 90. Examples of such data include instructions for any application or method operating on the device 90, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 904 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 906 provides power to the various components of the device 90. The power components 906 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 90.
The multimedia component 908 comprises a screen providing an output interface between the device 90 and a 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 908 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 device 90 is in an operating mode, such as a shooting 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 910 is configured to output and/or input audio signals. For example, the audio component 910 includes a Microphone (MIC) configured to receive external audio signals when the apparatus 90 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 904 or transmitted via the communication component 916. In some embodiments, audio component 910 also includes a speaker for outputting audio signals.
I/O interface 912 provides an interface between processing component 902 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 assembly 914 includes one or more sensors for providing various aspects of status assessment for the device 90. For example, the sensor assembly 914 may detect the open/closed status of the device 90, the relative positioning of the components, such as the display and keypad of the device 90, the sensor assembly 914 may also detect a change in the position of the device 90 or a component of the device 90, the presence or absence of user contact with the device 90, the orientation or acceleration/deceleration of the device 90, and a change in the temperature of the device 90. The sensor assembly 914 may include a proximity sensor configured to detect the presence of a nearby object in the absence of any physical contact. The sensor assembly 914 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 914 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 916 is configured to facilitate wired or wireless communication between the apparatus 90 and other devices. The device 90 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 916 receives a paging signal or paging related information from an external paging management system via a paging channel. In an exemplary embodiment, the communication component 916 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 90 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 904 comprising instructions, executable by the processor 820 of the apparatus 90 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 should be limited only by the attached claims.

Claims (10)

1. A mobile terminal, comprising:
a first antenna located at one end of the mobile terminal near an earpiece, the first antenna configured as a low frequency main set antenna and an intermediate/high frequency diversity antenna;
a second antenna located at an end of the mobile terminal near the microphone, the second antenna configured as a low frequency diversity antenna and a mid/high frequency main set antenna.
2. The mobile terminal of claim 1, further comprising a first radio frequency circuit and a first control device;
the first radio frequency circuit comprises a first switch element, a main set circuit and a diversity circuit, wherein the first switch element is used for realizing the connection between the main set circuit or the diversity circuit and the first antenna or the second antenna;
the first control device is used for controlling the first switch element to connect the main set circuit and the first antenna when the mobile terminal works in a low-frequency band, and controlling the first switch element to connect the main set circuit and the second antenna when the mobile terminal works in a medium-frequency band or a high-frequency band.
3. The mobile terminal of claim 2, wherein the first switching element is a double pole double throw switch.
4. The mobile terminal of claim 1, further comprising a second radio frequency circuit comprising a low frequency main set circuit, a low frequency diversity circuit, an intermediate/high frequency main set circuit, and an intermediate/high frequency diversity circuit;
the low-frequency main set circuit and the medium-frequency/high-frequency diversity circuit are electrically connected with the first antenna, and the low-frequency diversity circuit and the medium-frequency/high-frequency main set circuit are electrically connected with the second antenna.
5. The mobile terminal according to any of claims 1 to 4, wherein the first antenna comprises a first feeding point, a first grounding point, and a first impedance matching circuit and a second switching element therebetween, the first impedance matching circuit comprising a plurality of first paths corresponding to different frequency bands, the second switching element being configured to switch between the plurality of first paths; and/or the presence of a gas in the gas,
the second antenna includes a second feeding point, a second grounding point, and a second impedance matching circuit and a third switching element therebetween, the second impedance matching circuit including a plurality of second paths corresponding to different frequency bands, the third switching element being configured to switch between the plurality of second paths.
6. The mobile terminal of claim 5, wherein when the first antenna comprises the second switching element and the second antenna comprises the third switching element, the mobile terminal further comprises a second control device;
the second control means is configured to control the second switching element to be connected to a path in a low-frequency transmission band among the plurality of first paths, and to control the third switching element to be connected to a path in a low-frequency reception band among the plurality of second paths.
7. The mobile terminal according to claim 6, characterized in that the second switching element and/or the third switching element is a Mobile industry processor interface switch.
8. The mobile terminal according to claim 6, characterized in that the second switching element and/or the third switching element is a single-pole multi-throw switch.
9. The mobile terminal of claim 1, further comprising a metal middle frame, wherein a first broken seam is disposed in the first antenna, and the first broken seam is located at a top or a side of the metal middle frame.
10. The mobile terminal of claim 9, wherein a second slot is disposed in the second antenna, and the second slot is located at a bottom of the metal middle frame.
CN201811584913.7A 2018-12-24 2018-12-24 Mobile terminal Pending CN111355015A (en)

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CN201811584913.7A CN111355015A (en) 2018-12-24 2018-12-24 Mobile terminal

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