CN106450682A - Antenna device, antenna switching method and mobile terminal - Google Patents
Antenna device, antenna switching method and mobile terminal Download PDFInfo
- Publication number
- CN106450682A CN106450682A CN201611162573.XA CN201611162573A CN106450682A CN 106450682 A CN106450682 A CN 106450682A CN 201611162573 A CN201611162573 A CN 201611162573A CN 106450682 A CN106450682 A CN 106450682A
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- China
- Prior art keywords
- antenna
- mobile terminal
- antenna body
- load point
- point
- Prior art date
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- 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
- H01Q1/242—Supports; 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
- H01Q1/243—Supports; 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 with built-in antennas
Abstract
The invention discloses an antenna device, an antenna switching method and a mobile terminal. The device comprises a sensing module, a switching module, a radio-frequency signal source and an antenna body, wherein the antenna body is close to one end of a microphone of the mobile terminal and comprises a first feed point and a second feed point which are positioned on the left and the right of the mobile terminal respectively, and the sensing module is used for sensing the shielding state of the antenna body, the switching module is used for switching a signal feed point of the antenna body between the first feed point and the second feed point according to the shielding state. Therefore, by sensing the shielding state of the antenna body on the lower portion of the mobile terminal and switching the signal feed point of the antenna body between the first feed point and the second feed point according to the shielding state, antenna performance deterioration is avoided, left and right performance balance of an antenna is kept, the antenna performance of the mobile terminal held with a hand is improved, and internet surfing experience and call experience of a user holding the mobile terminal with the hand are further improved.
Description
Technical field
The present invention relates to communication technical field, especially relates to a kind of antenna assembly, antenna switching method and movement whole
End.
Background technology
The antenna performance of the mobile terminals such as mobile phone, directly affects the quality of the signal of communication of mobile terminal, and then affects
The call of user and online experience.When user's left hand or the right hand grip mobile terminal, it will usually covered some antennas, so as to
Antenna performance is caused to deteriorate.Therefore, how to prevent right-hand man from when gripping mobile terminal, causing antenna performance to deteriorate, i.e., how to keep
Right-hand man's performance balance of antenna, is the design difficulty of current antenna.
For traditional plastic rear cover mobile terminal, still with by the metal routing (pattern) of appropriate design antenna
And feed location, or avoid hand griping position as far as possible, the impact of right-hand man is balanced, realizes right-hand man's performance balance.But for
At present for the metal back cover mobile terminal of ever more popular, as metal back cover itself is used as antenna body, cause aerial position
Arbitrarily cannot change, so as to cannot solve the problems, such as right-hand man's performance balance of antenna using traditional solution.
Therefore, how right-hand man's performance balance of antenna is solved the problems, such as, it has also become the technical barrier for currently increasingly highlighting.
Content of the invention
The main object of the present invention is for providing a kind of antenna assembly, antenna switching method and mobile terminal, it is intended to solve to move
Right-hand man's performance balance problem of the antenna of dynamic terminal, lifts online when user holds mobile terminal and call is experienced.
To achieve these objectives, the present invention proposes a kind of antenna assembly, and described device is applied to mobile terminal, including sensing mould
Block, handover module, radio-frequency signal source and antenna body, the antenna body is near mike one end of the mobile terminal, institute
Stating antenna body includes to be located at the left side of the mobile terminal and the first load point and second load point on the right respectively, wherein:
The sensing module, for sensing the shielding status of the antenna body;
The handover module, for according to the shielding status by the signal feed-in point of the antenna body described first
Switch between load point and second load point.
Alternatively, the handover module includes control unit and switching switch, and described control unit is used for:Cut described in control
Change the switchable connection of switch first load point to believe with the radio frequency with the radio-frequency signal source or second load point
Number source, so that first load point or second load point become the signal feed-in point of the antenna body.
Alternatively, the switching switch is single-pole double-throw switch (SPDT), and described single-pole double-throw switch (SPDT) one end connects the radio frequency letter
Number source, the other end is switchable to connect first load point or second load point.
Alternatively, the antenna body also includes an earth point.
Alternatively, the earth point is Wei Yu first load point and second load point between.
Alternatively, the sensing module includes sensing unit, and the sensing module is used for:Sensed by the sensing unit
Limbs near the sensing unit when produced parasitic capacitance change information, true according to the change information of the parasitic capacitance
The shielding status of the fixed antenna body.
Alternatively, the sensing unit is arranged at the left side and/or the right of the mobile terminal bottom.
Alternatively, the sensing unit is arranged at the lower left corner and/or the lower right corner of the mobile terminal.
Alternatively, the sensing unit is arranged on the fore shell of the mobile terminal.
Alternatively, the sensing unit is covered after being arranged at the mobile terminal, and the bonnet is by non-conductive material system
Become.
Alternatively, the bonnet of the mobile terminal is made up of conductor material, and the bonnet bottom is extended laterally with one
Gap, the sensing unit is arranged in the gap.
Alternatively, the bonnet is metal back cover.
Alternatively, the sensing module also includes status determining unit, when the sensing unit is arranged at the movement eventually
During the left side of end bottom, the status determining unit is used for:When the parasitic capacitance being sensed by the sensing unit become big
When, determine that the left side of the antenna body is shielded;
The handover module is used for:When the left side of the antenna body is shielded, the signal of the antenna body is presented
Access point switches to second load point.
Alternatively, the status determining unit is additionally operable to:After the left side that determines the antenna body is shielded, when passing through
The sensing unit senses the parasitic capacitance and becomes hour, determines that the left side of the antenna body is not shielded;
The handover module is additionally operable to:When the left side of the antenna body does not have shielded, by the antenna body
Signal feed-in point switches to first load point.
Alternatively, the sensing module also includes status determining unit, when the sensing unit is arranged at the movement eventually
During the right of end bottom, the status determining unit is used for:When the parasitic capacitance being sensed by the sensing unit become big
When, determine that the right of the antenna body is shielded;
The handover module is used for:When the right of the antenna body is shielded, the signal of the antenna body is presented
Access point switches to first load point.
Alternatively, the status determining unit is additionally operable to:After the right for determining the antenna body is shielded, when passing through
The sensing unit senses the parasitic capacitance and becomes hour, determines that the right of the antenna body is not shielded;
The handover module is additionally operable to:When the right that the shielding status are the antenna body does not have shielded, will
The signal feed-in point of the antenna body switches to second load point.
Alternatively, the sensing module also includes status determining unit, when the sensing unit is arranged at the movement eventually
When the left side of end bottom and the right, the status determining unit is used for:Described when being sensed by the sensing unit on the left side
When parasitic capacitance becomes big, determine that the left side of the antenna body is shielded;When sensing institute by the sensing unit on the right
State parasitic capacitance become big when, determine that the right of the antenna body is shielded;
The handover module is used for:When the left side of the antenna body is shielded, the signal of the antenna body is presented
Access point switches to second load point;When the right of the antenna body is shielded, the signal of the antenna body is presented
Access point switches to first load point.
Alternatively, the sensing unit is hardware, conducting resinl, conducting film, electric conductivity coating or metal routing.
Alternatively, the hardware is sheet metal, bonding jumper or tinsel.
Alternatively, the sensing module also includes detector unit, and the detector unit is connected with the sensing unit, described
Detector unit is used for:The capacitance of the parasitic capacitance near the sensing unit is detected, when the capacitance is more than or equal to threshold
During value, determine that the parasitic capacitance becomes big.
Alternatively, the detector unit is used for:After determining that the parasitic capacitance becomes big, the electricity of the parasitic capacitance is detected
Capacitance, when the capacitance is less than threshold value, determines that the parasitic capacitance diminishes.
The present invention proposes a kind of antenna switching method simultaneously, and methods described is applied to mobile terminal, comprises the following steps:
The shielding status of sensing antenna body;The antenna body is near mike one end of the mobile terminal, and wraps
Include respectively and be located at the left side of the mobile terminal and the first load point and second load point on the right;
According to the shielding status by the signal feed-in point of the antenna body in first load point and described second
Switch between load point.
Alternatively, methods described also includes:
The control switchable connection of switching switch first load point and radio-frequency signal source or second load point with
The radio-frequency signal source, so that first load point or second load point become the signal feed-in of the antenna body
Point.
Alternatively, include the step of the shielding status of the sensing antenna body:
By sensing unit sense limbs near the sensing unit when produced parasitic capacitance change information, according to
The change information of the parasitic capacitance determines the shielding status of the antenna body.
Alternatively, when the sensing unit is arranged at the left side of the mobile terminal bottom, described according to the parasitism
The step of change information of electric capacity determines the shielding status of the antenna body includes:When sensing institute by the sensing unit
State parasitic capacitance become big when, determine that the left side of the antenna body is shielded;
Described according to the shielding status by the signal feed-in point of the antenna body in first load point and described
The step of switching between second load point includes:When the left side of the antenna body is shielded, by the antenna body
Signal feed-in point switch to second load point.
Alternatively, after the step of signal feed-in point by the antenna body switches to second load point also
Including:
Becoming hour when the parasitic capacitance being sensed by the sensing unit, determines that the left side of the antenna body does not have
Shielded, the signal feed-in point of the antenna body is switched to first load point.
Alternatively, when the sensing unit is arranged at the right of the mobile terminal bottom, described according to the parasitism
The step of change information of electric capacity determines the shielding status of the antenna body includes:When sensing institute by the sensing unit
State parasitic capacitance become big when, determine that the right of the antenna body is shielded;
Described according to the shielding status by the signal feed-in point of the antenna body in first load point and described
The step of switching between second load point includes:When the right of the antenna body is shielded, by the antenna body
Signal feed-in point switch to first load point.
Alternatively, after the step of signal feed-in point by the antenna body switches to first load point also
Including:
Becoming hour when the parasitic capacitance being sensed by the sensing unit, determines that the right of the antenna body does not have
Shielded, the signal feed-in point of the antenna body is switched to second load point.
Alternatively, when the sensing unit is arranged at the left side of the mobile terminal bottom and the right, described according to institute
State parasitic capacitance change information determine the antenna body shielding status the step of include:When by the sensing on the left side
Unit senses to the parasitic capacitance become big when, determine that the left side of the antenna body is shielded;When by the sense on the right
Answer unit senses to the parasitic capacitance become big when, determine that the right of the antenna body is shielded;
Described according to the shielding status by the signal feed-in point of the antenna body in first load point and described
The step of switching between second load point includes:When the left side of the antenna body is shielded, by the antenna body
Signal feed-in point switch to second load point;When the right of the antenna body is shielded, by the antenna body
Signal feed-in point switch to first load point.
Alternatively, described by the sensing unit sense limbs near the sensing unit when produced parasitic capacitance
Change information the step of include:
The capacitance of the parasitic capacitance near the sensing unit is detected, when the capacitance is more than or equal to threshold value,
Determine that the parasitic capacitance becomes big.
Alternatively, also include after the step for determining that the parasitic capacitance change is big:
The capacitance of the parasitic capacitance is detected, when the capacitance is less than threshold value, determines that the parasitic capacitance diminishes.
The present invention also proposes a kind of mobile terminal, and the mobile terminal includes an antenna assembly, and described device includes sensing
Module, handover module, radio-frequency signal source and antenna body, the antenna body near mike one end of the mobile terminal,
The antenna body includes to be located at the left side of the mobile terminal and the first load point and second load point on the right respectively, its
In:The sensing module, for sensing the shielding status of the antenna body;The handover module, for according to the masking
The signal feed-in point of the antenna body is switched between first load point and second load point by state.
A kind of antenna assembly that the embodiment of the present invention is provided, by the masking of the antenna body of sensing movement terminal bottom
State, and according to shielding status, the signal feed-in point of antenna body is cut between the first load point and the second load point
Change, it is to avoid antenna performance deteriorates, right-hand man's performance balance of antenna is kept, lifting is held antenna performance during mobile terminal, entered
And lift online experience when user holds mobile terminal and experience of conversing.Using technical scheme, by rational
Design, the antenna that the right-hand man's performance that only can design a full frequency band in mobile terminal bottom is all balanced, so as to enter
Net/operator's existing network authenticated connection need not all go up antenna auxiliary, that is, omit upper antenna, so as to solve the head for being caused by upper antenna
SAR test is difficult to the technical problem for passing through, and is a revolutionary solution.
Also, with respect to senser elements such as light sensor, range sensors, the sensing for adopting in the embodiment of the present invention is posted
The sensing unit of raw electric capacity can be any conducting element, simple structure, it is easy to accomplish, the fore shell of mobile terminal can be arranged on
With after cover, the extra design space of mobile terminal will not be taken, and not interfere with the appearance design of mobile terminal;Meanwhile, sense
Answering unit flexible design can be carried out according to antenna scheme and antenna environment, and be embedded in whole antenna system, does not interfere with
Antenna performance.
Description of the drawings
Fig. 1 is the module diagram of the antenna assembly of first embodiment of the invention;
Fig. 2 is the module diagram of the sensing module in Fig. 1;
Fig. 3 is that the sensing unit in the embodiment of the present invention is arranged at the schematic diagram on the fore shell of mobile terminal;
The circuit connection diagram of antenna body, handover module and radio-frequency signal source in Fig. 4 embodiment of the present invention;
Fig. 5 is the flow chart of the antenna switching method of second embodiment of the invention.
The realization of the object of the invention, functional characteristics and advantage will be described further in conjunction with the embodiments referring to the drawings.
Specific embodiment
It should be appreciated that specific embodiment described herein is not intended to limit the present invention only in order to explain the present invention.
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singulative " one " used herein, " one
Individual ", " described " and " being somebody's turn to do " may also comprise plural form.It is to be further understood that arranging used in the description of the present invention
Diction " including " refers to there is the feature, integer, step, operation, element and/or component, but it is not excluded that existing or adding
Other features one or more, integer, step, operation, element, component and/or their group.It should be understood that when we claim unit
Part is " connected " or during " coupled " to another element, and it can be directly connected or coupled to other elements, or can also exist
Intermediary element.Additionally, " connection " used herein or " coupling " can include wireless connection or wireless coupling.Used herein arrange
Diction "and/or" includes one or more associated whole or any cell for listing item and all combines.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, and all terms used herein are (including technology art
Language and scientific terminology), with art of the present invention in those of ordinary skill general understanding identical meaning.Should also
It is understood by, those terms defined in such as general dictionary, it should be understood that with the context with prior art
The consistent meaning of meaning, and unless by specific definitions as here, will not otherwise use idealization or excessively formal implication
To explain.
Those skilled in the art of the present technique are appreciated that " terminal " used herein above, " terminal unit " had both included wireless communication
The equipment of number receptor, which only possesses the equipment of the wireless signal receiver of non-emissive ability, includes again to receive and transmitting hardware
Equipment, its have can on bidirectional communication link, execute two-way communication reception and transmitting hardware equipment.This equipment
Can include:Honeycomb or other communication equipments, which has single line display or multi-line display or shows without multi-line
The honeycomb of device or other communication equipments;PCS (Personal Communications Service, PCS Personal Communications System), which can
With combine voice, data processing, fax and/or its communication ability;PDA (Personal Digital Assistant, personal
Digital assistants), which can include radio frequency receiver, pager, the Internet/intranet access, web browser, notepad, day
Go through and/or GPS (Global Positioning System, global positioning system) receptor;Conventional laptop and/or palm
Type computer or other equipment, its have and/or the conventional laptop including radio frequency receiver and/or palmtop computer or its
His equipment." terminal " used herein above, " terminal unit " they can be portable, can transport, installed in the vehicles (aviation,
Sea-freight and/or land) in, or be suitable for and/or be configured in local runtime, and/or with distribution form, operate in the earth
And/or any other position operation in space." terminal " used herein above, " terminal unit " can also be communication terminal, on
Network termination, music/video playback terminal, for example, can be PDA, MID (Mobile Internet Device, mobile Internet
Equipment) and/or the equipment such as the mobile phone with music/video playing function, or intelligent television, Set Top Box.
Embodiment one
With reference to Fig. 1, the antenna assembly of first embodiment of the invention is proposed, described device is applied to mobile terminal, including sense
Module, handover module, radio-frequency signal source and antenna body is surveyed, radio-frequency signal source can be arranged in the printed circuit board (PCB) of mobile terminal
On.Antenna body, near mike one end of mobile terminal, is the lower antenna of mobile terminal, and antenna body includes to be located at shifting respectively
First load point and the second load point on the left side of dynamic terminal and the right.Sensing module is used for sensing the masking shape of antenna body
State, handover module is used for according to shielding status by the signal feed-in point of antenna body between the first load point and the second load point
Switch over, cause antenna performance to deteriorate to avoid because antenna body is shielded.
In the embodiment of the present invention, sensing module includes at least one sensing unit, and which is used for sensing limb by sensing unit
Body near the sensing unit when produced parasitic capacitance change information, according to the change information of parasitic capacitance determine mobile eventually
The shielding status of the antenna body at end.The limbs refer mainly to staff, are also likely to be other electric conductors certainly, below with staff
As a example by.
As shown in Fig. 2 in the present embodiment, sensing module includes that the sensing unit, detector unit and the state that are sequentially connected are true
Order unit, detector unit is used for detecting the change information of parasitic capacitance by sensing unit, status determining unit to be posted for basis
The change information of raw electric capacity determines the shielding status of antenna body.Detector unit can be arranged in movement eventually with status determining unit
On the printed circuit board (PCB) at end, detector unit can be arranged with split with status determining unit, it is also possible to be integrated on a chip.
Sensing unit can be arbitrary conducting element, such as hardware, conducting resinl, conducting film, electric conductivity coating, metal
Cabling (pattern) etc., wherein hardware such as sheet metal, bonding jumper, tinsel etc..When being embodied as, sensing unit is permissible
Using flexible PCB (Flexible Printed Circuit, FPC), sheet metal (as stainless steel substrates), laser direct forming
The days such as (Laser Direct structuring, LDS), printing straight forming (Print Direct Structuring, PDS)
Line way of realization or production technology, sensing unit is brought in the antenna system of mobile terminal.
Sensing unit can be arranged at a position of mobile terminal, it is also possible to be arranged at least two of mobile terminal not
With position, its design aim is:When being designed at user normally using mobile terminal, staff is easily touched and the antenna that blocks is attached
Near position.In the present embodiment, sensing unit can be arranged at mobile terminal bottom (i.e. near the mike one of mobile terminal
End) the left side and/or the right, be preferably disposed on the lower left corner and/or the lower right corner of mobile terminal.
In the specific implementation, in view of the fore shell of mobile terminal is generally plastic housing, it is insulator, therefore can be single by sensing
Unit is arranged on the left side of fore shell and/or the lower left corner of the marginal position on the right, particularly fore shell and/or the corner position in the lower right corner
Put.When the bonnet of mobile terminal is made up of non-conductive material (as plastic rear cover), sensing unit can also be arranged on bonnet
The corner location in the lower left corner and/or the lower right corner of the left side and/or the marginal position on the right, particularly bonnet.When mobile terminal
When bonnet is made up of conductor material (as three-stage metal back cover), sensing unit can also be arranged on the extension of bonnet lower, transverse
The left side in gap (or claim antenna strip) and/or the inside on the right, and the sensing unit preferably do not contacted with bonnet, right to reduce
The interference of antenna.
As shown in figure 3, sensing unit 101 can be respectively arranged at the lower left corner of fore shell 100 and the bottom right of mobile terminal
Two, angle corner location.
It should be appreciated that be the PART of the design of sensing unit above, during actual enforcement, can be according to antenna
Scheme and antenna environment flexible design, can be the assembled schemes of a part as exemplified above, or its citing.Final mesh
Be to design the position that easily blocks and touch in user, and the impact to original antenna scheme to be considered, with
Reach optimal design.
Known as described above, the sensing unit of the embodiment of the present invention, simple structure, it is easy to accomplish, movement can be arranged on
The fore shell of terminal and after cover, the extra design space of mobile terminal will not be taken.And the sensing unit of the embodiment of the present invention can
Flexible design is carried out according to antenna scheme and antenna environment, and being embedded in whole antenna system, does not interfere with antenna performance.
Detector unit is connected with sensing unit, for detecting the capacitance of the parasitic capacitance near sensing unit, the electric capacity
Value is the capacitance that sensing unit may be coupled to.When staff is not near sensing unit, the electric capacity that detector unit is detected
Be worth for C=C0, C0 be parasitic capacitance near sensing unit initial value, when limbs (as staff) are near sensing unit, sense
Answering near unit to increase parasitic capacitance C1 that staff brings, the capacitance C=C0+C1 that now detector unit is detected.Cause
This, when the environment near the sensing unit changes, the parasitic capacitance that detector unit is detected can also change, and such as work as people
When handss touch sensing unit region, parasitic capacitance will become big, and status determining unit then can exist according to sensing unit
Position on mobile terminal determines which region of antenna body is covered by staff.By sensing staff principle and reasonable adjusting sense
Answer size and the position of unit, it is possible to design the sensing mould of the scene that sensitive can judge that left/right hand grips mobile terminal
Block.
When being embodied as, (or at least two) capacitance threshold value can be set, the threshold value is initial more than parasitic capacitance
Value C0.The actual size of threshold value can be determined according to test, for example, when the lower left corner that staff touches mobile terminal causes antenna
During penalty, the capacitance of the parasitic capacitance near the now sensing unit in the lower left corner that detector unit is detected is read, will
The capacitance is set to threshold value.
The capacitance of parasitic capacitance of the detector unit in real time or near the detection sensing unit of timing, when capacitance is more than threshold
During value, detector unit then determines that parasitic capacitance becomes big, and notifies status determining unit.Status determining unit is then according to the sensing list
Unit position on mobile terminals determines the shielding status of antenna body, for example:When sensing unit is arranged at mobile terminal bottom
The right when, it is determined that the right of antenna body is shielded;When sensing unit is arranged at the left side of mobile terminal bottom, then really
The left side for determining antenna body is shielded.
Further, a position for only mobile terminal or the monolateral situation for being provided with sensing unit, work as determination
After parasitic capacitance near sensing unit becomes big, detector unit also continues to detect the capacitance of parasitic capacitance, when capacitance is less than
During threshold value, it is determined that parasitic capacitance diminishes, and notify status determining unit.Status determining unit is then being moved according to sensing unit
Position in terminal, determines that the shielding status in the region of antenna body are released, i.e., the region is not shielded.For example:When
When sensing unit is only arranged at the left side of mobile terminal bottom, it is determined that the left side of antenna body is not shielded;When sensing is single
When unit is only arranged at the right of mobile terminal bottom, it is determined that the right of antenna body is not shielded.
In other embodiments, sensing module can also be sensed by the senser element such as light sensor, range sensor
Staff whether near or touch certain position of mobile terminal, so as to obtain the shielding status of antenna body.But with respect to this
The sensing module of inventive embodiments, senser element can take the neighbouring more space of antenna and design is extremely complex, easily causes day
Beta radiation efficiency reduces and introduces interference, ultimately results in antenna performance and substantially reduces.Also, light sensor, range sensor
Perforate on mobile terminals is also needed to Deng senser element, affect the appearance design of mobile terminal.And adopt the embodiment of the present invention
Sensing module senses the detection for changing to realize the shielding status of antenna body of parasitic capacitance by sensing unit, then can advise
Keep away the technical problem that above-mentioned traditional sensor plan brings.
In the present embodiment, the circuit connection diagram of antenna body, handover module and radio-frequency signal source is as shown in Figure 4.Its
In, handover module includes control unit 21 and switching switch K, and antenna body 10 connects radio-frequency signal source 30 by switching switch K,
Control unit 21 is used for controlling the first load point feed1 and the radiofrequency signal of the switchable connection antenna body 10 of switching switch K
The second load point feed2 and radio-frequency signal source 30 of 30 sources or antenna body 10, so that the first load point of antenna body 10
Feed1 or the second load point feed2 become the signal feed-in point of antenna body 10.Handover module can be arranged in printed circuit board (PCB)
On, the control unit 21 of the application processor (AP) as handover module of mobile terminal can be multiplexed.
In the present embodiment, switching switch k is preferably single-pole double-throw switch (SPDT), single-pole double-throw switch (SPDT) one end connection radiofrequency signal
Source 30, the first load point feed1 or the second load point feed2 of the switchable connection antenna body 10 of the other end.Real at other
Apply in example, switching switch k can also be the switch of other forms, such as transistor switch.
Handover module carries out load point switching especially by the following manner:
The left side and the right for mobile terminal bottom is provided with the situation of sensing unit, when sensing module senses day
The signal feed-in point of antenna body when the left side of line body is shielded, is then switched to second load point on the right, so that radio frequency
Special frequency channel is transferred to the right from the second load point feed-in on the right by signal, it is to avoid antenna performance deteriorates.When sensing module sense
Measure antenna body the right shielded when, then the signal feed-in point of antenna body is switched to first load point on the left side, with
First load point feed-in of the radiofrequency signal from the left side is made, special frequency channel is transferred to the left side, it is to avoid antenna performance deteriorates.
For the situation for being only provided with sensing unit on the left side of mobile terminal bottom, when sensing module senses antenna sheet
The signal feed-in point of antenna body when the left side of body is shielded, is then switched to second load point on the right, so that radiofrequency signal
From the second load point feed-in on the right, special frequency channel is transferred to the right, it is to avoid antenna performance deteriorates.Determining antenna body
After the left side is shielded, become hour when sensing module senses parasitic capacitance by sensing unit, it is determined that the left side of antenna body
Without shielded, now the signal feed-in point of antenna body is then switched back into handover module first load point on the left side, to prevent
The right of antenna body is shielded and affect antenna performance.In other words, under this situation, acquiescence with first load point on the left side is
The signal feed-in point of antenna body, signal feed-in point is just switched to when just thinking that the left side of antenna body is shielded the second of the right
Load point, so as to realize the switching of two load points in left and right.
For the situation for being only provided with sensing unit on the right of mobile terminal bottom, when sensing module senses antenna sheet
The signal feed-in point of antenna body when the right of body is shielded, is then switched to first load point on the left side, so that radiofrequency signal
From the first load point feed-in on the left side, special frequency channel is transferred to the left side, it is to avoid antenna performance deteriorates.Determining antenna body
After the right is shielded, become hour when sensing module senses parasitic capacitance by sensing unit, it is determined that the right of antenna body
Without shielded, now the signal feed-in point of antenna body is then switched back into handover module second load point on the right, to prevent
The left side of antenna body is shielded and affect antenna performance.In other words, under this situation, acquiescence with second load point on the right is
The signal feed-in point of antenna body, just signal feed-in point is switched to the first of the left side when just thinking that the right of antenna body is shielded
Load point, so as to realize the switching of two load points in left and right.
In other embodiments, when mobile terminal also has upper antenna, it is also possible to carry out upper and lower antenna switching.For example, when
When the left side of lower antenna and/or the right are shielded, the antenna of work at present is switched to upper antenna;Instantly antenna is not shielded
Or upper antenna shielded when, the antenna of work at present is switched to lower antenna.
Further, antenna body also includes an earth point, and the earth point can pass through the connection printing of spring-piece type adapter
The ground of circuit board.The earth point is preferably disposed between the first load point and the second load point, can greatly promote antenna performance.
The embodiment of the present invention is embedded into sensing unit in antenna system, as a part for antenna system, equivalent to profit
With the part of antenna system as sensor, a kind of brand-new sensor design thinking is opened, tradition can be replaced completely
Sensor plan.And this design can be supported to be embedded into all types of antennas (as PIFA/IFA/LOOP/Monopole
Deng), length and the position of sensing unit according to application scenarios demand, can be adjusted flexibly, in order to reach preferably sense sensitive
Degree effect.
Using the technical scheme of the embodiment of the present invention, antenna performance when holding mobile terminal can be lifted, referred herein
Antenna performance can refer to the antenna performance of whole frequency ranges, it is also possible to refer to some of which frequency range (such as 824MHZ~894MHZ)
Antenna performance, by experiment can confirm that out holding after which frequency range performance have deterioration, it is possible to targetedly to the frequency range
Performance improved.
The antenna assembly of the embodiment of the present invention, by the shielding status of the antenna body of sensing movement terminal bottom, and root
According to shielding status, the signal feed-in point of antenna body is switched between the first load point and the second load point, it is to avoid antenna
Penalty, keeps right-hand man's performance balance of antenna, and antenna performance during mobile terminal is held in lifting, and then lifts user's handss
Online experience and call when holding mobile terminal is experienced.Using technical scheme, designed by rational, can be only
The antenna that the right-hand man's performance for a full frequency band being designed in mobile terminal bottom is all balanced, so as in networking/operator's existing network
Authenticated connection need not all go up antenna auxiliary, that is, omit upper antenna, and the head SAR test so as to solve to be caused by upper antenna is difficult to lead to
The technical problem that crosses, is a revolutionary solution.
Also, with respect to senser elements such as light sensor, range sensors, in the embodiment of the present invention, sense parasitic capacitance
Sensing unit can be any conducting element, simple structure, it is easy to accomplish, fore shell and the bonnet of mobile terminal can be arranged on
On, the extra design space of mobile terminal will not be taken, and does not interfere with the appearance design of mobile terminal;Meanwhile, sensing unit
Flexible design can be carried out according to antenna scheme and antenna environment, and be embedded in whole antenna system, not interfere with day linear
Energy.
Additionally, adopting technical scheme, the induced signal that right-hand man can also be gripped mobile terminal sends to
Application processor (AP) is counted, so as to require that higher scene makes data supporting, Jin Erjin some for right-hand man
Row application (app) software optimization.
Embodiment two
With reference to Fig. 5, the antenna switching method of second embodiment of the invention is proposed, methods described is applied to mobile terminal, bag
Include following steps:
S11, sensing antenna body shielding status, the antenna body near mike one end of mobile terminal, and including
The left side of mobile terminal and first load point and second load point on the right are located at respectively.
S12, according to shielding status, the signal feed-in point of antenna body is entered between the first load point and the second load point
Row switching.
In the embodiment of the present invention, sensing unit is provided with one of mobile terminal or at least two positions.Sensing unit
Can be arbitrary conducting element, such as hardware, conducting resinl, conducting film, electric conductivity coating, metal routing (pattern) etc.,
Wherein hardware such as sheet metal, bonding jumper, tinsel etc..When being embodied as, sensing unit can adopt FPC, sheet metal (such as
Stainless steel substrates), the antenna implementation such as LDS, PDS or production technology, sensing unit is brought into the antenna system of mobile terminal
In.
Sensing unit can be arranged at a position of mobile terminal, it is also possible to be arranged at least two of mobile terminal not
With position, its design aim is:When being designed at user normally using mobile terminal, staff is easily touched and the antenna that blocks is attached
Near position.In the present embodiment, sensing unit can be arranged at mobile terminal bottom (i.e. near the mike one of mobile terminal
End) the left side and/or the right, be preferably disposed on the lower left corner and/or the lower right corner of mobile terminal.
In the specific implementation, in view of the fore shell of mobile terminal is generally plastic housing, it is insulator, therefore can be single by sensing
Unit is arranged on the left side of fore shell and/or the lower left corner of the marginal position on the right, particularly fore shell and/or the corner position in the lower right corner
Put.When the bonnet of mobile terminal is made up of non-conductive material (as plastic rear cover), sensing unit can also be arranged on bonnet
The corner location in the lower left corner and/or the lower right corner of the left side and/or the marginal position on the right, particularly bonnet.When mobile terminal
When bonnet is made up of conductor material (as three-stage metal back cover), sensing unit can also be arranged on the extension of bonnet lower, transverse
The left side in gap (or claim antenna strip) and/or the inside on the right, and the sensing unit preferably do not contacted with bonnet, right to reduce
The interference of antenna.
It should be appreciated that be the PART of the design of sensing unit above, during actual enforcement, can be according to antenna
Scheme and antenna environment flexible design, can be the assembled schemes of a part as exemplified above, or its citing.Final mesh
Be to design the position that easily blocks and touch in user, and the impact to original antenna scheme to be considered, with
Reach optimal design.
Known as described above, the sensing unit of the embodiment of the present invention, simple structure, it is easy to accomplish, movement can be arranged on
The fore shell of terminal and after cover, the extra design space of mobile terminal will not be taken.And the sensing unit of the embodiment of the present invention can
Flexible design is carried out according to antenna scheme and antenna environment, include in whole antenna system completely, do not interfere with antenna performance.
In step S11, mobile terminal by sensing unit sense limbs near the sensing unit when produced parasitism electricity
The change information of appearance, the change information according to parasitic capacitance determines the shielding status of the antenna body of mobile terminal.
Specifically, the capacitance of the parasitic capacitance that mobile terminal can be in real time or near the detection sensing unit of timing, when
When capacitance is more than threshold value, it is determined that parasitic capacitance becomes big.Then the sensing unit for being changed according to neighbouring parasitic capacitance
Position on mobile terminals is determining the shielding status of antenna body.For example:When the sense by the right of mobile terminal bottom
Answer unit senses to parasitic capacitance become big when, it is determined that the right of antenna body is shielded;When by a left side for mobile terminal bottom
The sensing unit on side sense parasitic capacitance become big when, it is determined that the left side of antenna body is shielded.
Further, a position for only mobile terminal or the monolateral situation for being provided with sensing unit, work as determination
After parasitic capacitance near sensing unit becomes big, mobile terminal also continues to detect the electric capacity of the parasitic capacitance near the sensing unit
Value, when capacitance is less than threshold value, it is determined that parasitic capacitance diminishes.Mobile terminal is then according to sensing unit on mobile terminals
Position, determines that the shielding status in the region of antenna body are released, i.e., the region is not shielded.For example:Work as sensing unit
Only be arranged at mobile terminal bottom the left side when, it is determined that the left side of antenna body is not shielded;When sensing unit is only arranged
When the right of mobile terminal bottom, it is determined that the right of antenna body is not shielded.
In other embodiments, mobile terminal can also be sensed by the senser element such as light sensor, range sensor
Staff whether near or touch certain position of mobile terminal, so as to obtain the shielding status of antenna body.
In step S12, mobile terminal can be by controlling switchable the first feed-in for connecting antenna body of switching switch
Point and second load point and radio-frequency signal source of radio-frequency signal source or antenna body, so that the first load point of antenna body or the
Two load points become the signal feed-in point of antenna body.
In the present embodiment, switching switch is preferably single-pole double-throw switch (SPDT), single-pole double-throw switch (SPDT) one end connection radiofrequency signal
Source, the first load point of the switchable connection antenna body of the other end or the second load point.In other embodiments, switching switch
Can also be the switch of other forms, such as transistor switch.
Mobile terminal carries out load point switching especially by the following manner:
The left side and the right for mobile terminal bottom is provided with the situation of sensing unit, when sensing antenna body
The signal feed-in point of antenna body when the left side is shielded, is then switched to second load point on the right, so that radiofrequency signal is from the right side
The second load point feed-in on side, special frequency channel is transferred to the right, it is to avoid antenna performance deteriorates.When the right side for sensing antenna body
The signal feed-in point of antenna body when side is shielded, is then switched to first load point on the left side, so that radiofrequency signal is from the left side
The first load point feed-in, special frequency channel is transferred to the left side, it is to avoid antenna performance deteriorate.
For the situation for being only provided with sensing unit on the left side of mobile terminal bottom, when the left side for sensing antenna body
The signal feed-in point of antenna body when shielded, is then switched to second load point on the right, so that radiofrequency signal is from the right
Second load point feed-in, special frequency channel is transferred to the right, it is to avoid antenna performance deteriorates.Hidden on the left side for determining antenna body
After covering, when by sensing unit sense parasitic capacitance become hour, it is determined that the left side of antenna body do not have shielded, now then
The signal feed-in point of antenna body is switched back into first load point on the left side, is affected with preventing the right of antenna body shielded
Antenna performance.In other words, under this situation, give tacit consent to the signal feed-in point with first load point on the left side as antenna body, just think
Signal feed-in point is just switched to second load point on the right, so as to realize the feedback of left and right two when the left side of antenna body is shielded
The switching of access point.
For the situation for being only provided with sensing unit on the right of mobile terminal bottom, when the right for sensing antenna body
The signal feed-in point of antenna body when shielded, is then switched to first load point on the left side, so that radiofrequency signal is from the left side
First load point feed-in, special frequency channel is transferred to the left side, it is to avoid antenna performance deteriorates.Hidden on the right for determining antenna body
After covering, when by sensing unit sense parasitic capacitance become hour, it is determined that the right of antenna body do not have shielded, now then
The signal feed-in point of antenna body is switched back into second load point on the right, is affected with preventing the left side of antenna body shielded
Antenna performance.In other words, under this situation, give tacit consent to the signal feed-in point with second load point on the right as antenna body, just think
Signal feed-in point is just switched to first load point on the left side, so as to realize the feedback of left and right two when the right of antenna body is shielded
The switching of access point.
In other embodiments, when mobile terminal also has upper antenna, it is also possible to carry out upper and lower antenna switching.For example, when
When the left side of lower antenna and/or the right are shielded, the antenna of work at present is switched to upper antenna;Instantly antenna is not shielded
Or upper antenna shielded when, the antenna of work at present is switched to lower antenna.
Further, antenna body also includes an earth point, and the earth point can pass through the connection printing of spring-piece type adapter
The ground of circuit board.The earth point is preferably disposed between the first load point and the second load point, can greatly promote antenna performance.
The technical scheme of the embodiment of the present invention, in the specific implementation, can pass through appropriate design by sensing unit (as metal
Cabling pattern) be embedded in antenna system, when left hand or the right hand hold mobile terminal and during near sensing unit, sensing
The capacitance of the parasitic capacitance that unit may be coupled to will produce change, and capacitance variation information is then fed back to sense by sensing unit
Chip is answered, induction chip can feed back to application processor again, and then learn staff current touch to certain area of mobile terminal
Domain, and assign instruction and allow lower antenna carry out left and right load point switching, antenna during to hold mobile terminal under lifting particular context
OTA performance.
The antenna switching method of the embodiment of the present invention, by the shielding status of the antenna body of sensing movement terminal bottom,
And according to shielding status, the signal feed-in point of antenna body is switched between the first load point and the second load point, it is to avoid
Antenna performance deteriorates, and keeps right-hand man's performance balance of antenna, and antenna performance during mobile terminal is held in lifting, and then lifting is used
Online experience and call when mobile terminal is held at family is experienced.Using technical scheme, designed by rational, permissible
The antenna that the right-hand man's performance for only designing a full frequency band in mobile terminal bottom is all balanced, so as in networking/operator
Existing network authenticated connection need not all go up antenna auxiliary, that is, omit upper antenna, and the head SAR test so as to solve to be caused by upper antenna is difficult
With the technical problem for passing through, it is a revolutionary solution.
Also, with respect to senser elements such as light sensor, range sensors, in the embodiment of the present invention, sense parasitic capacitance
Sensing unit can be any conducting element, simple structure, it is easy to accomplish, fore shell and the bonnet of mobile terminal can be arranged on
On, the extra design space of mobile terminal will not be taken, and does not interfere with the appearance design of mobile terminal;Meanwhile, sensing unit
Flexible design can be carried out according to antenna scheme and antenna environment, and be embedded in whole antenna system, not interfere with day linear
Energy.
The present invention proposes a kind of mobile terminal simultaneously, and the mobile terminal includes an antenna assembly, and described device includes sense
Module, handover module, radio-frequency signal source and antenna body is surveyed, the antenna body is near the mike one of the mobile terminal
End, the antenna body includes to be located at the left side of the mobile terminal and the first load point and second load point on the right respectively,
Wherein:The sensing module, for sensing the shielding status of the antenna body;The handover module, for according to the screening
Cover state to switch over the signal feed-in point of the antenna body between first load point and second load point.
Antenna assembly described in the present embodiment is the antenna assembly in the present invention involved by above-described embodiment, will not be described here.
It should be appreciated that the left side described in the embodiment of the present invention and the right, refer to that user normally grips and uses mobile terminal
When left-hand side and right-hand side.
It will be understood by those skilled in the art that the present invention includes to relate to execute in operation described herein
Or multinomial equipment.These equipment can for needed for purpose and specially design and manufacture, or general-purpose computations can also be included
Known device in machine.These equipment have the computer program being stored in which, and these computer programs are optionally activated
Or reconstruct.Such computer program can be stored in equipment (for example, computer) computer-readable recording medium or be stored in and be suitable to
Storage e-command is simultaneously coupled in any kind of medium of bus respectively, and the computer-readable medium is included but is not limited to
(Read-Only Memory read-only is deposited for any kind of disk (including floppy disk, hard disk, CD, CD-ROM and magneto-optic disk), ROM
Reservoir), RAM (Random Access Memory, random access memory), EPROM (Erasable Programmable Read-
Only Memory, Erarable Programmable Read only Memory), EEPROM (Electrically Erasable Programmable
Read-Only Memory, EEPROM), flash memory, magnetic card or light card.It is, readable
Medium is included by any medium of equipment (for example, computer) storage or transmission information in the form of can read.
Those skilled in the art of the present technique be appreciated that can be realized with computer program instructions these structure charts and/or
The combination of each frame and these structure charts and/or block diagram and/or the frame in flow graph in block diagram and/or flow graph.This technology is led
Field technique personnel be appreciated that can by these computer program instructions be supplied to general purpose computer, special purpose computer or other
The processor of programmable data processing method realizing, so as to the process by computer or other programmable data processing methods
Device is executing the scheme that specifies in the frame of structure chart disclosed by the invention and/or block diagram and/or flow graph or multiple frames.
Those skilled in the art of the present technique are appreciated that the various operations for having discussed in the present invention, method, in flow process
Step, measure, scheme can be replaced, changed, combined or deleted.Further, each with discussed in the present invention
Kind of operation, method, other steps in flow process, measure, scheme can also be replaced, changed, reset, decomposed, combined or deleted.
Further, of the prior art with disclosed in the present invention various operations, method, the step in flow process, measure, scheme
Can also be replaced, changed, reset, decomposed, combined or deleted.
Above by reference to the preferred embodiments of the present invention have been illustrated, not thereby limit to the interest field of the present invention.This
Skilled person can have multiple flexible programs to realize the present invention, for example as one without departing from the scope of the present invention and essence
The feature of individual embodiment can be used for another embodiment and obtain another embodiment.Institute within all technology designs with the present invention
Any modification, equivalent and the improvement that makees, all should be within the interest field of the present invention.
Claims (10)
1. a kind of antenna assembly, is applied to mobile terminal, it is characterised in that including sensing module, handover module, radio-frequency signal source
And antenna body, the antenna body is near mike one end of the mobile terminal, and the antenna body includes to be located at respectively
First load point and the second load point on the left side of the mobile terminal and the right, wherein:
The sensing module, for sensing the shielding status of the antenna body;
The handover module, for according to the shielding status by the signal feed-in point of the antenna body in first feed-in
Switch between point and second load point.
2. antenna assembly according to claim 1, it is characterised in that the handover module includes that control unit and switching are opened
Close, described control unit is used for:The switchable connection of the control switching switch first load point and the radiofrequency signal
Source or second load point and the radio-frequency signal source, so that first load point or second load point become described
The signal feed-in point of antenna body.
3. antenna assembly according to claim 2, it is characterised in that the switching switch is single-pole double-throw switch (SPDT), described
Single-pole double-throw switch (SPDT) one end connects the radio-frequency signal source, the switchable connection of the other end first load point or described second
Load point.
4. antenna assembly according to claim 1, it is characterised in that the antenna body also includes an earth point.
5. antenna assembly according to claim 4, it is characterised in that the earth point is located at first load point and institute
State between the second load point.
6. a kind of antenna switching method, is applied to mobile terminal, it is characterised in that comprise the following steps:
The shielding status of sensing antenna body;The antenna body near mike one end of the mobile terminal, and including point
Wei Yu not the left side of the mobile terminal and first load point on the right and the second load point;
According to the shielding status by the signal feed-in point of the antenna body in first load point and second feed-in
Switch between point.
7. antenna switching method according to claim 6, it is characterised in that methods described also includes:
The control switchable connection of switching switch first load point and radio-frequency signal source or second load point with described
Radio-frequency signal source, so that first load point or second load point become the signal feed-in point of the antenna body.
8. antenna switching method according to claim 7, it is characterised in that the switching switch is single-pole double-throw switch (SPDT),
Described single-pole double-throw switch (SPDT) one end connects the radio-frequency signal source, the switchable connection of the other end first load point or described
Second load point.
9. antenna switching method according to claim 6, it is characterised in that the antenna body also includes an earth point.
10. a kind of mobile terminal, it is characterised in that include the antenna assembly as described in any one of claim 1-5.
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