CN105390801A - Antenna structure of mobile terminal, and mobile terminal equipped with the same - Google Patents
Antenna structure of mobile terminal, and mobile terminal equipped with the same Download PDFInfo
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- CN105390801A CN105390801A CN201510672931.0A CN201510672931A CN105390801A CN 105390801 A CN105390801 A CN 105390801A CN 201510672931 A CN201510672931 A CN 201510672931A CN 105390801 A CN105390801 A CN 105390801A
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- mobile terminal
- signal
- inductance
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/24—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention relates to an antenna structure of a mobile terminal. Signal strengths of a first antenna part and a second antenna part are detected through a signal detecting module. Furthermore detecting results are output to a control module. When the signal strength of the first antenna part is relatively high, the control module makes a switching circuit module switch the first antenna part as a main transceiver antenna. Similarly, when the signal strength of the second antenna part is relatively high, the control module makes the switching circuit module switch the second antenna part as the main transceiver antenna. Accordingly, when the strength of the received/transmitted signal of the first antenna part or the second antenna part is interfered by external factors, the antenna part with the relatively high signal strength is selected as the main transceiver antenna, so that the RF performance of the mobile terminal is always kept in a relatively high state, thereby improving user experience. Furthermore the invention provides a mobile terminal equipped with the antenna structure.
Description
Technical field
The present invention relates to antenna structure, particularly relate to a kind of antenna structure and the mobile terminal that improve the mobile terminal of radio-frequency performance.
Background technology
Along with the development of electronic installation, for meeting the demand of little shape wireless device, manufacturer constantly makes great efforts the radio communication circuit utilizing cramped construction to realize such as antenna module.Meanwhile, comprise conductive structure in an electronic, as metal device casing assembly.Because conductive component can affect radio-frequency performance, so, must be careful when antenna being incorporated in the electronic installation comprising conductive structure.And the size of antenna free space on Chang Yinwei electronic installation and be unfavorable for performance.Traditional solution increases antenna size or add multiple tuning components and parts to realize broadband operation, and these solutions usually affect the radio-frequency performance of antenna because of the size of the antenna free space on equipment.
Summary of the invention
Based on this, be necessary to provide a kind of antenna structure and the mobile terminal that improve the mobile terminal of radio-frequency performance.
An antenna structure for mobile terminal, comprises antenna part, signal detection module, control module and commutation circuit module;
Described antenna part comprises the first antenna part and the second antenna part, described first antenna part is arranged at the relative both sides of metal floor respectively with described second antenna part, described first antenna part is by the first port and described commutation circuit model calling, and described second antenna part is by the second port and described commutation circuit model calling; Described signal detection module connects described commutation circuit module; Described control module connects described signal detection module and described commutation circuit module simultaneously;
Described signal detection module is strong and weak for the signal detecting described first antenna part and described second antenna part; If the signal of described first antenna part is better than the signal of described second antenna part, then described control module controls described first antenna part of described commutation circuit module switching is main dual-mode antenna; If the signal of described second antenna part is better than the signal of described first antenna part, then described control module controls described second antenna part of described commutation circuit module switching is main dual-mode antenna.
Wherein in an embodiment, also comprise the signal transmitting and receiving module simultaneously connecting described control module and described commutation circuit module, described signal transmitting and receiving module is for receiving the signal with transmitting antenna portion.
Wherein in an embodiment, described first antenna part comprises first day line pattern, the second antenna pattern and connector;
Described first day line pattern is roughly U-shaped, the U-shaped opening of described first day line pattern is arranged towards described metal floor noncontact, preset clearance between one free end open circuit of described first day line pattern and described metal floor, another free end of described first day line pattern is connected with described metal floor by described connector; Metal floor described in one termination of described second antenna pattern, the other end freely extends along the edge of described metal floor, makes to form gap between described second antenna pattern and described metal floor; Described second antenna pattern and described connector noncontact.
Wherein in an embodiment, described first antenna part also comprises matching network, and described matching network connects described first day line pattern and described first port.
Wherein in an embodiment, described first antenna part also comprises the low frequency regulating networks for switching low frequency operation frequency range; Described low frequency regulating networks connect described first day line pattern and described metal floor respectively.
Wherein in an embodiment, described low frequency regulating networks comprise hilted broadsword four throw switch, the first inductance, the second inductance, the 3rd inductance and the 4th inductance;
Be connected with described hilted broadsword four throw switch after described first inductance, described second inductance, described 3rd inductance, described 4th inductance connect described metal floor respectively, the described hilted broadsword four throw switch other end connects described first day line pattern.
Wherein in an embodiment, described first antenna part also comprises GPS regulating networks, and described GPS regulating networks comprise the first electric capacity and the 5th inductance; Described first electric capacity is connected described first day line pattern and described metal floor respectively with after described 5th inductance series connection.
Wherein in an embodiment, described connector and described second antenna pattern noncontact are arranged.
Wherein in an embodiment, described first antenna part is identical with described second antenna part structure.
In addition, a kind of mobile terminal improving radio-frequency performance is also improved.
A kind of mobile terminal, comprises antenna structure described in claim 1-9 any one.
By signal detection module, the antenna structure of above-mentioned mobile terminal and mobile terminal detect that the signal of the first antenna part and the second antenna part is strong and weak, and testing result is exported to control module.When the signal of the first antenna part is stronger, it is main dual-mode antenna that control module control commutation circuit module switches the first antenna part.In like manner, when the signal of the second antenna part is stronger, it is main dual-mode antenna that control module control commutation circuit module switches the second antenna part.Therefore, when disturbing the receiving and transmitting signal of the first antenna part signal or the second antenna part strong and weak by extraneous factor, the antenna part that signal is stronger can be selected to be main dual-mode antenna, to make the radio-frequency performance of mobile terminal be in stronger state always, improve the experience of user.
Accompanying drawing explanation
Fig. 1 is one of schematic diagram of the antenna structure of mobile terminal;
Fig. 2 is one of schematic diagram of the antenna structure of mobile terminal;
Fig. 3 is the frequency response chart of the first port or the second port.
Embodiment
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.Preferred embodiment of the present invention is given in accompanying drawing.But the present invention can realize in many different forms, is not limited to embodiment described herein.On the contrary, provide the object of these embodiments be make the understanding of disclosure of the present invention more comprehensively thorough.
It should be noted that, when element is called as " being fixed on " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.Term as used herein " vertical ", " level ", "left", "right" and similar statement are just for illustrative purposes.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present invention understand usually.The object of term used in the description of the invention herein just in order to describe specific embodiment, is not intended to be restriction the present invention.Term as used herein " and/or " comprise arbitrary and all combinations of one or more relevant Listed Items.
As shown in Figure 1, be one of the schematic diagram of the antenna structure of mobile terminal.
An antenna structure for mobile terminal, comprises antenna part, signal detection module 304, control module 305 and commutation circuit module 303.
Described antenna part comprises the first antenna part 10 and the second antenna part 20, first antenna part 10 is arranged at the relative both sides of metal floor 300 respectively with described second antenna part 20, described first antenna part 10 is connected with described commutation circuit mould 303 pieces by the first port 201, and described second antenna part 20 is connected with described commutation circuit module 303 by the second port; Described signal detection module 304 connects described commutation circuit module 303; Described control module 305 connects described signal detection module 304 and described commutation circuit module 303 simultaneously.
Described signal detection module 304 is strong and weak with the signal of described second antenna part 20 for detecting described first antenna part 10; If the signal of described first antenna part 10 is better than the signal of described second antenna part 20, then described control module 305 controls described commutation circuit module 303 to switch described first antenna part 10 is main dual-mode antenna; If the signal of described second antenna part 20 is better than the signal of described first antenna part 10, then described control module 305 controls described commutation circuit module 303 to switch described second antenna part 20 is main dual-mode antenna.
Signal detection module 304 for detecting the signal strength signal intensity of the first antenna part 10 and the second antenna part 20, and compares its signal strength signal intensity, comparative result is exported to control module 305 simultaneously.And control module 305 can according to the operating state controlling commutation circuit module 303.Concrete, when the signal strength signal intensity of the first antenna part 10 is stronger, commutation circuit module 303 can switch to the circuit of the first antenna part 10, first port 201 conducting, thus makes the first antenna part 10 become main dual-mode antenna.
In like manner, when the signal of the second antenna part 20 is better than the first antenna part 10, can be that the second antenna part 20 becomes main dual-mode antenna, its principle be the same, no longer goes to live in the household of one's in-laws on getting married chat at this.
In one embodiment, the antenna structure of mobile terminal also comprises the signal transmitting and receiving module 306 simultaneously connecting described control module 305 and described commutation circuit module 303, and described signal transmitting and receiving module 306 is for receiving the signal with transmitting antenna portion.
Concrete, when the first antenna part 10 becomes main dual-mode antenna, the first antenna part 10 forms conducting loop via the first port 201, commutation circuit module 303 and signal transmitting and receiving module 306, thus realizes the transmitting-receiving of signal.
When the second antenna part 20 becomes main dual-mode antenna, the second antenna part 20 forms conducting loop via the second port, commutation circuit module 303 and signal transmitting and receiving module 306, thus realizes the transmitting-receiving of signal.
In one embodiment, the first antenna part 10 comprises first day line pattern 101, second antenna pattern 102 and connector 103.
Described first day line pattern 101 is roughly U-shaped, its U-shaped opening is arranged towards described metal floor 300 noncontact, one free end open circuit of described first day line pattern 101, and preset clearance between described metal floor 300, another free end is connected with described metal floor 300 by described connector 103; Metal floor 300 described in described second antenna pattern 102 1 termination, the other end freely extends along the edge of described metal floor 300, makes to form gap between described second antenna pattern 102 and described metal floor 300.
Connector 103 and described second antenna pattern 102 noncontact are arranged.
Concrete, second antenna pattern 102 is in same plane with metal floor 300, first day line pattern 101 vertical metal floor 300 is arranged, and first day line pattern 101 has certain altitude, therefore, after connector 103 connects first day line pattern, towards metal floor 300 direction bending and be connected with metal floor 300, therefore, connector 103 strides across the second antenna pattern 102 and is not in contact with it.
In the present embodiment, the second antenna pattern 102 is in same plane with described metal floor 300.Second antenna pattern 102 is the sheet of L-type, its shorter connection metal floor, one end 300, longer one end extend along the edge of metal floor 300 and with the sides aligned parallel of metal floor 300.
First day line pattern 101 can have along the thickness perpendicular to metal floor 300 direction.Connector 103 one end connects the centre position of first day line pattern 101 thickness direction, then bends the direction to metal floor 300 until be connected with metal floor 300.Therefore, connector 103 does not also contact with the second antenna pattern 102 is both non-intersect.And connector 103 does not also contact with the gap formed between metal floor 300 is both non-intersect with the second antenna pattern 102.
In the present embodiment, incorporated by reference to Fig. 2.The shape of connector 103 can be L-type, also can be irregular indentation, as long as it connects first day line pattern 101 and metal floor 300, and not with metal floor 300 at same plane.
In one embodiment, the first antenna part 10 also comprises matching network 104, and described matching network 104 connects described first day line pattern 101 and described first port 201.
Matching network 104 is for the first port 201 and mating between mobile terminal.First matching network 104 is also for the conjugate impedance match between the first antenna part 10 and mobile terminal.
In one embodiment, the first antenna part 10 also comprises the low frequency regulating networks 105 for switching low frequency operation frequency range; Described low frequency regulating networks 105 connect described first day line pattern 101 and described metal floor 300 respectively.
In a present embodiment, low frequency regulating networks 105 at least comprise an inductance and a switch.
Concrete, low frequency regulating networks 105 comprise hilted broadsword four throw switch, the first inductance, the second inductance, the 3rd inductance and the 4th inductance.
Described first inductance, described second inductance, described 3rd inductance, described 4th inductance are connected with described hilted broadsword four throw switch after connecting described metal floor 300 respectively, and the described hilted broadsword four throw switch other end connects described first day line pattern 101.
In other embodiments, low frequency regulating networks 105 also can comprise SP3T switch and corresponding three inductance.
In one embodiment, the first antenna part 10 also comprises GPS regulating networks 106, and described GPS regulating networks 106 comprise the first electric capacity and the 5th inductance; Described first electric capacity is connected described first day line pattern 101 and described metal floor 300 respectively with after described 5th inductance series connection.
GPS regulating networks 106 at least comprise an electric capacity.
Based on above-mentioned all embodiments, the first antenna part 10 is identical with described second antenna part 20 structure.First antenna part 10 is symmetricly set in the relative both sides of metal floor 300 with the second antenna part 20.
Based on above-mentioned all embodiments, under the first antenna part 10 or the second antenna part 20 are operated in inverse-F antenna and loop antenna two kinds of patterns.First port 201 is back to metal floor 300 through matching network 104, first day line pattern 101, connector 103, and form loop ground connection, the other end is then extend to first day line pattern 101 terminal open circuit.
Because the gap formed between the second antenna pattern 102 and metal floor 300 is slot antenna, be made up of metal floor 300 and the second antenna pattern 102, rely on gap radiation between the two, and be subject to the partial coupling excitation of connector.
Based on above-mentioned all embodiments, when the first antenna part 10 is main dual-mode antenna, the second antenna part 20 is auxiliary dual-mode antenna accordingly.When the second antenna part 20 is main dual-mode antenna, the first antenna part 10 is auxiliary dual-mode antenna accordingly.
When the first antenna part 10 or the second antenna part 20 are main dual-mode antenna, the first port 201 of its correspondence or the frequency response chart of the second port are as shown in Figure 3.Wherein, the first port 201 and the second port are rf inputs mouth.
In Fig. 3, transverse axis is frequency, unit GHz, and the longitudinal axis is S11, unit dB.There are four curves respectively, respectively four different induction values of corresponding low frequency regulating networks 105.As can be seen from the figure, low frequency regulating networks 105 pairs of low frequency part (0.7GHz ~ 0.96GHz) switch, and have no significant effect medium-high frequency (1.575GHz and 1.71GHz ~ 2.69GHz).Switched by different inductance value inductance, realize low frequency and cover 0.7GHz ~ 0.96GHz; Cover GPS frequency range 1.575GHz and high-frequency band 1.71GHz ~ 2.69GHz simultaneously.
Based on above-mentioned all embodiments, the main operation modes of the first antenna part 10 and the second antenna part 20 is as follows:
When being in inverse-F antenna pattern, the first antenna part 10 and the second antenna part 20 are operated in low frequency frequency range, cover 0.7 ~ 0.96GHz by low frequency regulating networks 105; When being in loop antenna, then stride across slot antenna, common covering high frequency 1.71 ~ 2.69GHz simultaneously; By another loop antenna that GPS regulating networks 106 are formed, be then operated in GPS frequency range.
For terminal body, the first antenna part 10 and the second antenna part 20 have identical electrical property.
In one embodiment, when people hold mobile terminal there is the part of antenna part time, due to the effect such as absorption of staff, the obvious deterioration holding part antenna performance can be caused, now signal detection module 304 detects that the aerial signal holding part is obviously weaker than other end aerial signal, therefore, control module 305 controls commutation circuit module 303 and is switched to other end antenna part as main antenna, and the antenna part holding part is as auxiliary antenna (being generally the diversity antenna of 4G communication).
Based on above-mentioned all embodiments, the radiant bodies such as first day line pattern 101, second antenna pattern 102 are as a part for the metal edge frame of mobile terminal.
The above-mentioned antenna structure of a kind of mobile terminal.
By signal detection module 304, the antenna structure of above-mentioned mobile terminal and mobile terminal detect that the signal of the first antenna part 10 and the second antenna part 20 is strong and weak, and testing result is exported to control module 305.When the signal of the first antenna part 10 is stronger, control module 305 controls commutation circuit module 303, and to switch the first antenna part 10 be main dual-mode antenna.In like manner, when the signal of the second antenna part 20 is stronger, control module 305 controls commutation circuit module 303, and to switch the second antenna part 20 be main dual-mode antenna.Therefore, when disturbing the receiving and transmitting signal of the first antenna part signal 10 or the second antenna part 20 strong and weak by extraneous factor, the antenna part that signal is stronger can be selected to be main dual-mode antenna, to make the radio-frequency performance of mobile terminal be in stronger state always, improve the experience of user.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this specification is recorded.
The above embodiment only have expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (10)
1. an antenna structure for mobile terminal, is characterized in that, comprises antenna part, signal detection module, control module and commutation circuit module;
Described antenna part comprises the first antenna part and the second antenna part, described first antenna part is arranged at the relative both sides of metal floor respectively with described second antenna part, described first antenna part is by the first port and described commutation circuit model calling, and described second antenna part is by the second port and described commutation circuit model calling; Described signal detection module connects described commutation circuit module; Described control module connects described signal detection module and described commutation circuit module simultaneously;
Described signal detection module is strong and weak for the signal detecting described first antenna part and described second antenna part; If the signal of described first antenna part is better than the signal of described second antenna part, then described control module controls described first antenna part of described commutation circuit module switching is main dual-mode antenna; If the signal of described second antenna part is better than the signal of described first antenna part, then described control module controls described second antenna part of described commutation circuit module switching is main dual-mode antenna.
2. the antenna structure of mobile terminal according to claim 1, is characterized in that, also comprises the signal transmitting and receiving module simultaneously connecting described control module and described commutation circuit module, and described signal transmitting and receiving module is for receiving the signal with transmitting antenna portion.
3. the antenna structure of mobile terminal according to claim 1, is characterized in that, described first antenna part comprises first day line pattern, the second antenna pattern and connector;
Described first day line pattern is roughly U-shaped, the U-shaped opening of described first day line pattern is arranged towards described metal floor noncontact, preset clearance between one free end open circuit of described first day line pattern and described metal floor, another free end of described first day line pattern is connected with described metal floor by described connector; Metal floor described in one termination of described second antenna pattern, the other end freely extends along the edge of described metal floor, makes to form gap between described second antenna pattern and described metal floor; Described second antenna pattern and described connector noncontact.
4. the antenna structure of mobile terminal according to claim 3, is characterized in that, described first antenna part also comprises matching network, and described matching network connects described first day line pattern and described first port.
5. the antenna structure of mobile terminal according to claim 3, is characterized in that, described first antenna part also comprises the low frequency regulating networks for switching low frequency operation frequency range; Described low frequency regulating networks connect described first day line pattern and described metal floor respectively.
6. the antenna structure of mobile terminal according to claim 5, is characterized in that, described low frequency regulating networks comprise hilted broadsword four throw switch, the first inductance, the second inductance, the 3rd inductance and the 4th inductance;
Be connected with described hilted broadsword four throw switch after described first inductance, described second inductance, described 3rd inductance, described 4th inductance connect described metal floor respectively, the described hilted broadsword four throw switch other end connects described first day line pattern.
7. the antenna structure of mobile terminal according to claim 3, is characterized in that, described first antenna part also comprises GPS regulating networks, and described GPS regulating networks comprise the first electric capacity and the 5th inductance; Described first electric capacity is connected described first day line pattern and described metal floor respectively with after described 5th inductance series connection.
8. the antenna structure of the mobile terminal according to claim 3-7 any one, is characterized in that, described connector and described second antenna pattern noncontact are arranged.
9. the antenna structure of the mobile terminal according to claim 3-7 any one, is characterized in that, described first antenna part is identical with described second antenna part structure.
10. a mobile terminal, is characterized in that, comprises antenna structure described in claim 1-9 any one.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510672931.0A CN105390801B (en) | 2015-10-15 | 2015-10-15 | The antenna structure and mobile terminal of mobile terminal |
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| CN201510672931.0A CN105390801B (en) | 2015-10-15 | 2015-10-15 | The antenna structure and mobile terminal of mobile terminal |
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| CN105390801A true CN105390801A (en) | 2016-03-09 |
| CN105390801B CN105390801B (en) | 2018-10-30 |
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| CN105762492A (en) * | 2016-04-20 | 2016-07-13 | 广东欧珀移动通信有限公司 | Metal casing, antenna apparatus and mobile terminal |
| WO2017097022A1 (en) * | 2015-12-07 | 2017-06-15 | 小米科技有限责任公司 | Terminal having communication function |
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| CN107612595A (en) * | 2017-08-14 | 2018-01-19 | 维沃移动通信有限公司 | A kind of antenna switching method and mobile terminal |
| CN107768806A (en) * | 2016-08-15 | 2018-03-06 | 北京小米移动软件有限公司 | Antenna module |
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| WO2018161502A1 (en) * | 2017-03-09 | 2018-09-13 | 中兴通讯股份有限公司 | Method and device for switching adjustable antennas |
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