CN105337049A - Antenna device of mobile terminal and mobile terminal - Google Patents
Antenna device of mobile terminal and mobile terminal Download PDFInfo
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- CN105337049A CN105337049A CN201510855551.0A CN201510855551A CN105337049A CN 105337049 A CN105337049 A CN 105337049A CN 201510855551 A CN201510855551 A CN 201510855551A CN 105337049 A CN105337049 A CN 105337049A
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Abstract
The embodiment of the invention discloses an antenna device of a mobile terminal. The antenna device comprises an external antenna, an internal antenna, a terminal shell with an antenna socket, a filter, a power supply part, a LAN, a work circuit and a switcher. A feeding point of the external antenna is electrically connected with a feeding pin of an antenna plug through the filter and the LNA. A grounding point of the external antenna is electrically connected with a grounding pin of the antenna plug through a grounding wire. The power supply part supplies power to the LAN. The internal antenna and the switcher are located in the terminal shell. The antenna socket is arranged on the terminal shell. A feeding pin of the antenna socket is electrically connected with the switcher. The switcher is electrically connected with the work circuit and a feeding pint of the internal antenna. A grounding pin of the antenna socket is grounded. The work circuit is used for switching between a radio frequency signal and a baseband signal. The switcher is used for controlling the work circuit to be electrically connected with the internal antenna or the external antenna. The embodiment of the invention further discloses the mobile terminal. By means of the antenna device of the mobile terminal and the mobile terminal, the signal receiving and transmitting quality can be improved, and interference is reduced.
Description
Technical field
The present invention relates to field of antenna, particularly relate to a kind of antenna assembly and mobile terminal of mobile terminal.
Background technology
The function of mobile terminal is more and more abundanter, except basic speech business and data service can be realized, Bluetooth transmission can also be realized, GPS (GlobalPositioningSystem, , global positioning system, be called for short GPS) locate and WiFi (WirelessFidelity, Wireless Fidelity, be called for short WiFi) function, in order to realize above-mentioned functions, mobile terminal inside is provided with corresponding 2G/3G/4G/5G (2/3/4/5-Generationwirelesstelephonetechnology, the second/tri-/tetra-/five generation wireless communication technology, be called for short 2G/3G/4G/5G) antenna, WiFi antenna, Bluetooth antenna and gps antenna, the antenna of every type is independently arranged on the assigned address of mobile terminal casing inside.The lightening of mobile terminal is pursued in current mobile phone manufacture day by day, and the space of mobile terminal inside is more and more narrower and small, and polytype radio-frequency antenna is arranged on inside and easily causes mutual interference, causes the service quality of business to can not get ensureing.
Summary of the invention
Embodiment of the present invention technical problem to be solved is, provides a kind of antenna assembly and mobile terminal of mobile terminal.Polytype radio-frequency antenna of mobile terminal inside in prior art can be solved and easily cause interference, cause the problem that the service quality of business declines.
In order to solve the problems of the technologies described above, embodiments provide a kind of antenna assembly of mobile terminal, comprise: there is the external antenna of aerial plug, built-in aerial, the terminal enclosure with antenna socket, filter, power supply part, low noise amplifier LNA, operating circuit and switch, wherein
The distributing point of described external antenna is electrically connected with the feed pin of aerial plug by described filter and described LNA, and the earth point of described external antenna is electrically connected by the grounding pin of earth connection with described aerial plug; Described power supply part is that described LNA powers;
Described built-in aerial and described switch are arranged in terminal enclosure, described terminal enclosure is provided with antenna socket, the feed pin of described antenna socket is electrically connected with described switch, described switch is electrically connected with the distributing point of described operating circuit and described built-in aerial respectively, the grounding pin ground connection of described antenna socket;
Described operating circuit is used for the conversion between radiofrequency signal and baseband signal, and described switch is electrically connected with described built-in aerial or external antenna for controlling described operating circuit.
Wherein, described external antenna, filter and described LNA are arranged in antenna casing, and described power supply part is be arranged on the battery established in described antenna casing.
Wherein, described power supply part is be arranged on the power module in described terminal enclosure, and wherein, the energization pins of described LNA and the energization pins electrical connection of described aerial plug, the energization pins of described antenna socket is electrically connected with the power module of described mobile terminal.
Wherein, be provided with transmission line between described external antenna and described filter, described transmission line is 50 ohmage transmission lines.
Wherein, described antenna socket is earphone socket or USB socket.
Wherein, when described mobile terminal is by built-in aerial transmission data, when described switch detects that the RSSI of described built-in aerial is less than preset value, disconnect the electrical connection between described operating circuit and described built-in aerial, connect the electrical connection between described external antenna and described operating circuit;
When described switch detects that the aerial plug of described external antenna is inserted into described antenna socket, disconnect the electrical connection between described operating circuit and described built-in aerial, connect the electrical connection between described external antenna and described operating circuit.
Wherein, described terminal enclosure comprises: close without the metal center of breakpoint and the metallic plate as main ground, described built-in aerial comprises: the first metal routing and the second metal routing;
Wherein, described metal center comprises and connects into shaped as frame two side frames, an a top frame and underframe; The two ends of described top frame are connected to the top of two described side frames respectively, and the two ends of described underframe are connected to the bottom of two described side frames respectively; The dual-side of described metallic plate respectively with two side frame seamless links of described metal center, the base of described metallic plate and the underframe of described metal center form first window, described first metal routing and described second metal routing are arranged in described first window, described first metal routing is connected with described metal center, and described second metal routing connects described metal center and described metallic plate simultaneously.
Wherein, described first metal routing and described second metal routing and described second metal routing are at grade.
Wherein, described first metal routing and described second metal routing are for being symmetrical arranged.
Accordingly, the embodiment of the present invention also provides a kind of mobile terminal, comprising: the antenna assembly described in above-mentioned any one.
Implement the embodiment of the present invention, there is following beneficial effect:
Casing internal is provided with built-in aerial, casing outer setting has external antenna, filter and active LNA, external antenna to be separated with casing by aerial plug and antenna socket or to be connected, switch controls operating circuit and uses external antenna or built-in aerial receiving and transmitting signal, reduce the annoyance level of each antenna of casing internal, increase signal transmission quality.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation one of the antenna assembly of a kind of mobile terminal that the embodiment of the present invention provides;
Fig. 2 is the structural representation two of the antenna assembly of a kind of mobile terminal that the embodiment of the present invention provides;
Fig. 3 is the structural representation three of the antenna assembly of a kind of mobile terminal that the embodiment of the present invention provides;
Fig. 4 is the structural representation four of the antenna assembly of a kind of mobile terminal that the embodiment of the present invention provides.
Embodiment
Embodiments provide a kind of antenna assembly and mobile terminal of mobile terminal, to reducing the electromagnetic interference between mobile terminal each radio-frequency antenna inner, strengthening signal transmitting and receiving quality, reducing the power consumption of mobile terminal.
The present invention program is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the embodiment of a part of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, should belong to the scope of protection of the invention.
See Fig. 1, the structural representation one of the antenna assembly of a kind of mobile terminal provided for the embodiment of the present invention, hereinafter referred to as " antenna assembly ", antenna assembly comprises external antenna 101, filter 10, LNA104, aerial plug, power supply part (not shown) and terminal enclosure, be provided with built-in aerial 113, switch 114, operating circuit 112 in terminal enclosure, terminal enclosure be provided with antenna socket 111.Filter is used for the out-of-band noise in filtering radiofrequency signal, operating circuit is used for the radiofrequency signal that sent by radio-frequency antenna and is converted to baseband signal and the baseband signal that sent by baseband chip is converted to radiofrequency signal, launches through radio-frequency antenna (built-in aerial or external antenna); LNA is used for the radiofrequency signal after filtering process to amplify, and sends operating circuit to and processes.
Wherein, the feed pin of external antenna is electrically connected by the input of filter and LNA, the input of LNA and the feed pin electrical connection of aerial plug, the grounding pin of external antenna and the grounding pin electrical connection of aerial plug.Optionally, external antenna, filter and LNA are arranged in antenna casing 10, and aerial plug is arranged on antenna casing 10.The feed pin of antenna socket by switch and operating circuit electrical connection, switch simultaneously and built-in aerial be electrically connected, the grounding pin ground connection of antenna socket.Optionally, switch can be a single-pole double-throw switch (SPDT), the feed pin of antenna socket and first of single-pole double-throw switch (SPDT) not moved end electrical connection, single-pole double-throw switch (SPDT) second not moved end and built-in aerial 113 be electrically connected, the moved end of single-pole double-throw switch (SPDT) and operating circuit electrical connection.
The course of work of antenna assembly is: switch controls operating circuit and uses built-in aerial or external antenna transmission signal, when aerial plug is inserted into antenna socket, when operating circuit use external antenna transmission signal, external antenna receives the radiofrequency signal of free space transmission, radiofrequency signal is delivered to filter and carry out filtering process, filter carries out amplification process to the radiofrequency signal after filtering process, be sent to operating circuit through the coupling of aerial plug and antenna socket after amplifying process, operating circuit enters the radiofrequency signal received is converted to baseband signal.
Optionally, described external antenna, filter and described LNA are arranged in antenna casing, and described power supply part is be arranged on the battery established in described antenna casing.
Wherein, see Fig. 2, external antenna 201, filter 202, LNA203, aerial plug 204 and battery 205 is provided with in antenna casing, the feed electricity of external antenna is electrically connected by the feed pin of filter and LNA and aerial plug, the energization pins electrical connection of battery and LNA, battery is that LNA powers.Operating circuit 212, built-in aerial 213, switch 214 is provided with in terminal enclosure 21, terminal enclosure is provided with the antenna socket 211 mated with aerial plug, the feed pin of antenna socket obtains switch electrical connection, and switch is electrically connected with built-in aerial and operating circuit respectively.
Optionally, described power supply part is be arranged on the power module in described terminal enclosure, and wherein, the energization pins of described LNA and the energization pins electrical connection of described aerial plug, the energization pins of described antenna socket is electrically connected with the power module of described mobile terminal.
Wherein, see Fig. 3, external antenna 301, filter 302, aerial plug 303 and LNA304 are set in antenna casing 30, the distributing point of external antenna is electrically connected by the feed pin of filter and LNA and aerial plug, the ground connection electricity of external antenna and the grounding pin electrical connection of aerial plug, the energization pins of LNA and the energization pins electrical connection of aerial plug; Built-in aerial 313, switch 314, power module 315, power supply circuits 312 are provided with in terminal enclosure 31, terminal enclosure is provided with antenna socket 311, the energization pins of antenna socket and power module electrical connection, power module is existing power supply part in terminal enclosure.The feed pin of antenna socket and switch electrical connection, the grounding pin ground connection of antenna socket, switch is electrically connected with built-in aerial and operating circuit respectively.
Optionally, be provided with transmission line between described external antenna and described filter, described transmission line is 50 ohmage transmission lines.
Wherein, transmission line between all parts can be all 50 ohmage transmission lines, such as, transmission line between filter and LNA is 50 ohmage transmission lines, be 50 ohmage transmission lines between LNA and antenna socket, transmission line between antenna socket and switch is 50 ohmage transmission lines, and the transmission line between switch and built-in aerial is 50 ohmage transmission lines, and the transmission line between switch and operating circuit is 50 ohmage transmission lines.
Optional described antenna socket is earphone socket or USB socket.
Wherein, casing carries earphone socket and USB socket, utilize existing earphone socket and USB socket as antenna socket, the antenna socket of external antenna is headset plug and USB plug accordingly.In addition, the casing of mobile terminal also can arrange extra antenna socket, the antenna socket of such as screw thread mouth, external antenna arranges the aerial plug of threaded post, and aerial plug and antenna socket are connected.
It should be noted that, when switch detects that antenna socket does not insert external antenna, control operating circuit and built-in aerial maintenance electrical connection; When switch detects that antenna socket inserts external antenna, control operating circuit according to the control strategy preset and keep being electrically connected with external antenna and built-in aerial one; Or
When switch detects that the aerial plug of external antenna is inserted into antenna socket, disconnect the electrical connection between operating circuit and built-in aerial, connect the electrical connection between external antenna and described operating circuit.
Optionally, when described mobile terminal is by built-in aerial transmission data, when described switch detects that the RSSI of described built-in aerial is less than preset value, disconnect the electrical connection between described operating circuit and described built-in aerial, connect the electrical connection between described external antenna and described operating circuit.
Or when switch detects that the aerial plug of external antenna is inserted into antenna socket, only use external antenna receiving and transmitting signal.
Wherein, RSSI shows that signal strength signal intensity declines when reducing, mobile terminal uses in the process of built-in aerial signal transmission, when the RSSI of built-in aerial is less than preset value, it is operating circuit signal transmission that switch enables external antenna, the interference that external antenna is subject to the radio-frequency antenna of mobile terminal inside is little, and signal reception is strong, can reduce the amplitude that signal strength signal intensity declines.External antenna is syllogic rod-pulling type antenna.Wherein, external antenna and filter can be arranged in antenna casing, and antenna casing can be plastic material.Built-in aerial is the one in gps antenna, 2G/3G/4G/5G antenna, WiFi antenna and Bluetooth antenna.
Optionally, described terminal enclosure comprises: close without the metal center of breakpoint and the metallic plate as main ground, described built-in aerial comprises: the first metal routing and the second metal routing;
Wherein, described metal center comprises and connects into shaped as frame two side frames, an a top frame and underframe; The two ends of described top frame are connected to the top of two described side frames respectively, and the two ends of described underframe are connected to the bottom of two described side frames respectively; The dual-side of described metallic plate respectively with two side frame seamless links of described metal center, the base of described metallic plate and the underframe of described metal center form first window, described first metal routing and described second metal routing are arranged in described first window, described first metal routing is connected with described metal center, and described second metal routing connects described metal center and described metallic plate simultaneously.
Wherein, see Fig. 4, antenna assembly comprises: have the external antenna of aerial plug, built-in aerial, the terminal enclosure with antenna socket, filter, operating circuit and switch; Terminal enclosure comprise metal center 4, as main ground metallic plate (Fig. 4 grey area) and carry on the back lid (not shown), built-in aerial comprises the first metal routing 44 and the second metal routing 45, center is metal material, the grid frame of metal center is provided with antenna socket 47, when power supply part is positioned at terminal enclosure, antenna socket comprises feed pin, energization pins and grounding pin.The outer setting of terminal enclosure has external antenna, antenna casing, filter, LNA and aerial plug, aerial plug has feed pin, energization pins and grounding pin, the distributing point of external antenna is electrically connected by the feed pin of filter, LNA and aerial plug, the earth point of external antenna and the grounding pin electrical connection of aerial plug, the energization pins of LNA and the energization pins electrical connection of aerial plug, aerial plug is connected with antenna socket coupling, and the feed pin of antenna socket is electrically connected with built-in aerial and operating circuit respectively by switch.
Metal center 4 is for closing without breakpoint arrangement, metal center comprises top frame 40, left frame 42, right grid 41 and underframe 43, the dual-side of metallic plate and the dual-side seamless link of metal center 4, the top margin of metallic plate and the top frame of metal center form first window, the base of metallic plate and the underframe of metal center form Second Window, first metal routing and the second metal routing are positioned at Second Window, metallic plate is fixedly installed printed circuit board (PCB), switch is installed on a printed circuit, one end of switch respectively with the second metal routing is electrically connected and is electrically connected with the feed pin of antenna socket, the grounding pin of antenna socket and metallic plate electrical connection, the other end of the second metal routing is electrically connected with the underframe of metal center.Mobile terminal is outside, is provided with external antenna in antenna casing, and the distributing point of external antenna is electrically connected by the feed pin of filter and aerial plug, the earth point of external antenna and the grounding pin electrical connection of aerial plug; When aerial plug is inserted in antenna socket, the feed pin of aerial plug and the feed pin electrical connection of antenna socket, the grounding pin of aerial plug and the grounding pin electrical connection of antenna socket.
Optionally, described first metal routing and described second metal routing and described second metal routing are at grade.
Optionally, described first metal routing and described second metal routing are for being symmetrical arranged.
Wherein, the position that the first metal routing and the second metal routing are arranged on underframe is symmetric.
Implement the embodiment of the present invention, casing internal is provided with built-in aerial, casing outer setting has external antenna, filter and active LNA, external antenna to be separated with casing by aerial plug and antenna socket or to be connected, switch controls operating circuit and uses external antenna or built-in aerial receiving and transmitting signal, reduce the annoyance level of each antenna of casing internal, increase signal transmission quality.
The embodiment of the present invention additionally provides a kind of mobile terminal, comprises the antenna assembly described in above-described embodiment, should be understood that mobile terminal includes but not limited to carry
or the mobile terminal of other operating system, such as mobile phone.Also can be other mobile terminal, such as there is the laptop computer of Touch sensitive surface (such as, touch-screen display and/or Trackpad) or panel computer or desktop computer.
In the following discussion, a kind of mobile terminal comprising display and Touch sensitive surface is described.But should be appreciated that mobile terminal can comprise other physical user-interface device one or more, such as physical keyboard, mouse and/or action bars.
Mobile terminal supports multiple application program usually, one or more in such as following: picture application program, present application program, word-processing application, webpage creates application program, dish editing application program, spreadsheet applications, game application, telephony application, videoconference application, email application, instant message application program, temper support application program, photograph management application program, digital camera applications program, digital video camcorder application program, network browsing application program, digital music player application, and/or video frequency player application program.
The various application programs that can perform on mobile terminals can use at least one physical user-interface device shared, such as Touch sensitive surface.One or more functions of Touch sensitive surface and display corresponding information on mobile terminals and/or can be changed to lower a kind of application program and/or adjusted in corresponding application programs and/or change from a kind of application program adjustment.Like this, the shared physical structure (such as Touch sensitive surface) of mobile terminal can to utilize for user clearly user interface directly perceived to support various application program.
One of ordinary skill in the art will appreciate that all or part of flow process realized in above-described embodiment method, that the hardware that can carry out instruction relevant by computer program has come, described program can be stored in a computer read/write memory medium, this program, when performing, can comprise the flow process of the embodiment as above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-OnlyMemory, ROM) or random store-memory body (RandomAccessMemory, RAM) etc.
Above disclosedly be only a kind of preferred embodiment of the present invention, certainly the interest field of the present invention can not be limited with this, one of ordinary skill in the art will appreciate that all or part of flow process realizing above-described embodiment, and according to the equivalent variations that the claims in the present invention are done, still belong to the scope that invention is contained.
Claims (10)
1. an antenna assembly for mobile terminal, is characterized in that, comprising: have the external antenna of aerial plug, built-in aerial, the terminal enclosure with antenna socket, filter, power supply part, low noise amplifier LNA, operating circuit and switch, wherein,
The distributing point of described external antenna is electrically connected with the feed pin of aerial plug by described filter and described LNA, and the earth point of described external antenna is electrically connected by the grounding pin of earth connection with described aerial plug; Described power supply part is that described LNA powers;
Described built-in aerial and described switch are arranged in terminal enclosure, described terminal enclosure is provided with antenna socket, the feed pin of described antenna socket is electrically connected with described switch, described switch is electrically connected with the distributing point of described operating circuit and described built-in aerial respectively, the grounding pin ground connection of described antenna socket;
Described operating circuit is used for the conversion between radiofrequency signal and baseband signal, and described switch is electrically connected with described built-in aerial or external antenna for controlling described operating circuit.
2. the method for claim 1, is characterized in that, described external antenna, filter and described LNA are arranged in antenna casing, and described power supply part is be arranged on the battery established in described antenna casing.
3. as power requires the method as described in 1, it is characterized in that, described power supply part is be arranged on the power module in described terminal enclosure, wherein, the energization pins of described LNA and the energization pins electrical connection of described aerial plug, the energization pins of described antenna socket is electrically connected with the power module of described mobile terminal.
4. antenna assembly as claimed in claim 1, it is characterized in that, be provided with transmission line between described external antenna and described filter, described transmission line is 50 ohmage transmission lines.
5. antenna assembly as claimed in claim 1, it is characterized in that, described antenna socket is earphone socket or general-purpose serial bus USB socket.
6. antenna assembly as claimed in claim 1, it is characterized in that, when described mobile terminal is by built-in aerial transmission data, when described switch detects that the received signal strength indicator RSSI of described built-in aerial is less than preset value, disconnect the electrical connection between described operating circuit and described built-in aerial, connect the electrical connection between described external antenna and described operating circuit; Or
When described switch detects that the aerial plug of described external antenna is inserted into described antenna socket, disconnect the electrical connection between described operating circuit and described built-in aerial, connect the electrical connection between described external antenna and described operating circuit.
7. antenna assembly as claimed in claim 1, it is characterized in that, described terminal enclosure comprises: close without the metal center of breakpoint and the metallic plate as main ground, described built-in aerial comprises: the first metal routing and the second metal routing;
Wherein, described metal center comprises and connects into shaped as frame two side frames, an a top frame and underframe; The two ends of described top frame are connected to the top of two described side frames respectively, and the two ends of described underframe are connected to the bottom of two described side frames respectively; The dual-side of described metallic plate respectively with two side frame seamless links of described metal center, the base of described metallic plate and the underframe of described metal center form first window, described first metal routing and described second metal routing are arranged in described first window, described first metal routing is connected with described metal center, and described second metal routing connects described metal center and described metallic plate simultaneously.
8. antenna assembly as claimed in claim 1, is characterized in that, described first metal routing and described second metal routing and described second metal routing are at grade.
9. antenna assembly as claimed in claim 7, it is characterized in that, described first metal routing and described second metal routing are for being symmetrical arranged.
10. a mobile terminal, is characterized in that, comprising: the antenna assembly as described in claim 1-9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510855551.0A CN105337049A (en) | 2015-11-28 | 2015-11-28 | Antenna device of mobile terminal and mobile terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510855551.0A CN105337049A (en) | 2015-11-28 | 2015-11-28 | Antenna device of mobile terminal and mobile terminal |
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| CN105337049A true CN105337049A (en) | 2016-02-17 |
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| CN201510855551.0A Pending CN105337049A (en) | 2015-11-28 | 2015-11-28 | Antenna device of mobile terminal and mobile terminal |
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| CN109301487A (en) * | 2017-07-24 | 2019-02-01 | 北京小米移动软件有限公司 | Electronic equipment and antenna |
| CN109301487B (en) * | 2017-07-24 | 2021-02-09 | 北京小米移动软件有限公司 | Electronic device and antenna |
| CN109587294A (en) * | 2017-09-27 | 2019-04-05 | 三星电子株式会社 | For connecting the connector of antenna and with the electronic equipment of the connector |
| CN109587294B (en) * | 2017-09-27 | 2022-04-05 | 三星电子株式会社 | Connector for connecting antenna and electronic device having the same |
| CN111370868A (en) * | 2020-04-10 | 2020-07-03 | 纳瓦电子（上海）有限公司 | Communication device capable of switching external antenna and manufacturing method thereof |
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Application publication date: 20160217 |