CN104269605A - Electronic device - Google Patents
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- CN104269605A CN104269605A CN201410487265.9A CN201410487265A CN104269605A CN 104269605 A CN104269605 A CN 104269605A CN 201410487265 A CN201410487265 A CN 201410487265A CN 104269605 A CN104269605 A CN 104269605A
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- 230000008569 process Effects 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 12
- 230000008054 signal transmission Effects 0.000 abstract description 5
- 230000010354 integration Effects 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract 4
- 230000005855 radiation Effects 0.000 description 24
- 238000005259 measurement Methods 0.000 description 10
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- 230000008859 change Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
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- 230000002093 peripheral effect Effects 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
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- 230000015572 biosynthetic process Effects 0.000 description 1
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Abstract
The invention discloses an electronic device which comprises an antenna module, a signal separation structure and a first signal transmission cable. The antenna module comprises an antenna unit and a sensing unit, wherein the antenna unit is used for outputting a radio-frequency signal, and the sensing unit is used for outputting a sensing signal. The first signal transmission cable is connected between the antenna module and the signal separation structure. The signal separation structure is used for carrying out separation on mixed signals which are composed of the radio-frequency signal and the sensing signal, and outputting the radio-frequency signal and the sensing signal respectively, wherein the radio-frequency signal and the sensing signal are transmitted through the first signal transmission cable. The electronic device is used for solving the technical problem that large mounting space is occupied in the integration process of an antenna and a capacitive sensor, the technical effect of thin, light and integrated design of the antenna and the capacitive sensor is achieved.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of electronic equipment.
Background technology
Developing rapidly of wireless communication technology brings great convenience to the work of people and life, more and more higher requirement is proposed to antenna thereupon, and updating of antenna technology makes smart mobile phone further, the Wireless Telecom Equipments such as panel computer are functionally more and more complete.Improving constantly in addition along with people's quality of life, people pay close attention to the problem relevant with health that Wireless Telecom Equipment brings more, and especially, the control problem about Wireless Telecom Equipment amount of radiation receives much concern.
In the prior art, the normal capacitance sensor that uses detects during human body proximity antenna, reduces the transmitting power of radio transmitter further, and then reduces electronic equipment to the radiation of human body.
In the design of prior art, in order to make Wireless Telecom Equipment meet volume little as far as possible, usually need antenna and capacitance sensor to carry out integrated design.In the process of antenna and capacitance sensor being carried out to integration, in prior art, the radiofrequency signal of electronic equipment passes through cable transmission, and the transducing signal of capacitance sensor transmits by increasing a flexible PCB usually, that is radiofrequency signal and transducing signal are directly transmitted by two different paths.
Present inventor, in the process realizing technical scheme in the embodiment of the present application, finds that prior art at least exists following technical problem:
Due in the prior art, when antenna and capacitance sensor carry out integration, radiofrequency signal and transducing signal need to transmit respectively by cable and these two paths of flexible PCB, larger installing space will be taken further, so, there is the technical problem taking larger installing space in the antenna of prior art and capacitance sensor integrated process.
Due in the prior art, when antenna and capacitance sensor carry out integration, radiofrequency signal and transducing signal need to transmit respectively by cable and these two paths of flexible PCB, when needs increase flexible PCB, inevitably bring the problem that design cost increases to some extent, so, there is the high technical problem of design cost in the antenna of prior art and capacitance sensor integrated process.
Summary of the invention
Embodiments providing a kind of electronic equipment, for solving the technical problem existing in antenna and capacitance sensor integrated process and take larger installing space, achieving the technique effect of the lightening design of antenna and capacitance sensor integrated design.
This application provides a kind of electronic equipment, comprising:
Antenna modules, comprises antenna element and sensing unit, and wherein, described antenna element is for exporting a radiofrequency signal, and described sensing unit is for exporting transducing signal;
Signal separator structure;
First signal-transmitting cable, is connected between described antenna modules and described Signal separator structure;
Wherein, the mixed signal be made up of described radiofrequency signal and described transducing signal that described Signal separator structure is used for coming via described first signal-transmitting cable transmission carries out separating treatment, exports described radiofrequency signal and described transducing signal respectively.
Alternatively, described antenna modules also comprises the first cable connector, the first end of described first signal-transmitting cable is connected with described first cable connector, transmits via described first cable connector to make described mixed signal in described first signal-transmitting cable.
Alternatively, described Signal separator structure comprises:
Cable block, comprises the second cable connector, and the second end of described first signal-transmitting cable is connected with described second cable connector;
First filter, is connected with described cable block, for filtering the transducing signal in the described mixed signal received from described cable block, obtaining and exporting described radiofrequency signal;
Second filter, is connected with described cable block, for filtering the radiofrequency signal in the described mixed signal received from described cable block, obtaining and exporting described transducing signal.
Alternatively, described electronic equipment also comprises electric capacity chip, is connected with described second filter, for receiving described transducing signal, and based on described transducing signal, obtains the first capacitance formed between described electronic equipment and another object.
Alternatively, described electric capacity chip also for adjusting described first capacitance based on a compensation adjustment value, obtains the second capacitance.
Alternatively, described electronic equipment also comprises:
Power emitting unit, is connected with described antenna modules;
Power controller, is connected between described power emitting unit and described electric capacity chip;
Wherein, when described electric capacity chip determines described first capacitance or described second capacitance is more than or equal to a predetermined capacitance, described electric capacity chip generates and exports first and controls signal to described power controller, and the transmitting power that described power controller controls described power emitting unit based on described first control signal reduces.
Alternatively, export described radiofrequency signal at described antenna element, when described sensing unit exports described transducing signal, described first filter is high frequency filter, for being filtered by the transducing signal in described mixed signal, exports described radiofrequency signal; Described second filter is low-frequency filter, for the radiofrequency signal in described mixed signal being filtered, exports described transducing signal.
Above-mentioned one or more technical scheme in the embodiment of the present application, at least has following technique effect or advantage:
In the technical scheme of the embodiment of the present application, transducing signal due to the capacitance sensor of electronic equipment does not need additionally to increase a flexible PCB to be transmitted, just the tunnel to the radiofrequency signal of antenna and the transducing signal of capacitance sensor can be realized only by same cable, so, solve the technical problem existing in the antenna of prior art and capacitance sensor integrated process and take larger installing space, achieve the technique effect of the lightening design of antenna and capacitance sensor integrated design.
In the technical scheme of the embodiment of the present application, transducing signal due to the capacitance sensor of electronic equipment does not need additionally to increase a flexible PCB to be transmitted, just the tunnel to the radiofrequency signal of antenna and the transducing signal of capacitance sensor can be realized only by same cable, so, solve in the antenna of prior art and capacitance sensor integrated process and there is the high technical problem of design cost, achieve antenna and the low technique effect of capacitance sensor integrated design cost.
In the technical scheme of the embodiment of the present application, initial capacitance due to capacitance sensor is very little general in pico farad level, and the parasitic capacitance that the electric capacity etc. that the cable capacitance of connecting sensor and electronic circuit, the stray capacitance of electronic circuit and transducer internal polar plate and peripheral conductor are formed is formed is larger, not only reduce the sensitivity of transducer, and these electric capacity are change at random, make instrument work very unstable, thus affect certainty of measurement, even make transducer normally work.In the chip of control capacitance transducer, add an offset be used for the parasitic capacitance of offsetting additional by adopting, so, solve the inaccurate technical problem of capacitance sensor certainty of measurement that parasitic capacitance in antenna of the prior art and capacitance sensor integrated design is brought, and then achieve the technique effect of the accurate control to antenna transmission power.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, be briefly described by the accompanying drawing used required in describing embodiment below, apparently, the accompanying drawing in the following describes is only some embodiments of the present invention.
Fig. 1 is the part-structure schematic diagram of electronic equipment in the application one embodiment;
Fig. 2 is the part-structure schematic diagram of electronic equipment in the application one embodiment.
Embodiment
Embodiments providing a kind of electronic equipment, for solving the technical problem existing in antenna and capacitance sensor integrated process and take larger installing space, achieving the technique effect of the lightening design of antenna and capacitance sensor integrated design.
Technical scheme in the embodiment of the present application is solve above-mentioned technical problem, and general thought is as follows:
A kind of electronic equipment, comprising: antenna modules, comprise antenna element and sensing unit, wherein, described antenna element is for exporting a radiofrequency signal, and described sensing unit is for exporting transducing signal; Signal separator structure; First signal-transmitting cable, is connected between described antenna modules and described Signal separator structure; Wherein, the mixed signal be made up of described radiofrequency signal and described transducing signal that described Signal separator structure is used for coming via described first signal-transmitting cable transmission carries out separating treatment, exports described radiofrequency signal and described transducing signal respectively.
In technique scheme, transducing signal due to the capacitance sensor of electronic equipment does not need additionally to increase a flexible PCB to be transmitted, just the tunnel to the radiofrequency signal of antenna and the transducing signal of capacitance sensor can be realized only by same cable, so, solve the technical problem existing in the antenna of prior art and capacitance sensor integrated process and take larger installing space, achieve the technique effect of the lightening design of antenna and capacitance sensor integrated design.
In order to better understand technique scheme, below by accompanying drawing and specific embodiment, technical solution of the present invention is described in detail, the specific features being to be understood that in the embodiment of the present application and embodiment is the detailed description to technical solution of the present invention, instead of the restriction to technical solution of the present invention, when not conflicting, the technical characteristic in the embodiment of the present application and embodiment can be combined with each other.
In the embodiment of the present application, electronic equipment can be mobile phone, also can be panel computer, etc.And radio-based electronic devices must can produce certain minimum radio-frequency power, so antenna inevitably produces radiation, when amount of radiation exceedes certain limit so that harm humans healthy.For mobile phone radiation, current international scientific circle to quantize mobile phone radiation with specific absorption rate " SAR (specific absorption rate) value (specific absorption rate of mobile phone or wireless product) " and measures, and whether main mobile phone radiation of measuring meets standard to the impact of human body.General international standard was: with timing in six minutes, and the electromagnetic radiation energy that per kilogram brain tissue absorbs must not more than two watts.Mobile phone is to human body radiation SAR, Unite States Standard 1.6W/kg (1 gram), and European standard is 2.0W/kg (10 grams).
In specific design, need to consider radiation problem during the electronic device design such as mobile phone, can by using the antenna not showing emitted radiation and exceed the local " hot-zone " of wishing power level, on the one hand, ensure satisfactory antenna performance, on the other hand, amount of radiation can be remained in the scope required in the world.In addition, capacitance sensor can also be used detect the exterior object of such as user's body and so on when to be near antenna, when the existing of exterior object being detected, the transmitting power of antenna can be reduced, and then guarantee that the radiation value of electronic equipment to human body is no more than in safe range.That is to be limited in the amount of radiation of can launch to any specified point place in set a distance of antenna, the radiation limitations at the about 1mm ~ 20mm place of equipment of particularly adjusting the distance, in these regions, the body part of user is easy near antenna, and then is subject to aerial radiation.Capacitance sensor is simple due to structure, without organic material and magnetic material, can stand sizable variations in temperature and various radiation effects, thus can large in variations in temperature, have the adverse circumstances such as various radiation under work.In addition capacitance sensor can support non-contact measurement device, and the response time is short, is suitable for online and kinetic measurement.And, highly sensitive, when adopting modern precision method of measurement, 10 of capacitance can be measured
-7variable quantity.In capacitance sensing implement body testing process, when human body is near mobile phone, capacitance sensor can detect a capacitance, and human body can make capacitance increase when mobile phone, be easy to make capacitance exceed the capacitance of default safe radiation scope, so, usually need the capacitance value range by setting in safe radiation scope, after the capacitance detected when capacitance sensor exceedes default safe radiation scope, power emitting unit is sent to process by electric capacity chip capacitance signal, generate a control command, control command is sent to power controller, thus reduce the transmitting power of antenna, reduce the radiation of mobile phone to human body, finally make mobile phone radiation scope in safe radiation scope.In addition, in order to reduce the volume of electronic equipment, usually antenna and capacitance sensor are carried out integrated design.
Please refer to shown in Fig. 1, is the part-structure schematic diagram of electronic equipment in the application one embodiment.In antenna and capacitance sensor integrated design, antenna element 10 is for exporting a radiofrequency signal, and sensing unit 20 is for exporting transducing signal, and antenna element 10 and sensing unit 20 constitute antenna modules 30.In specific design, in order to mixed signal radiofrequency signal and transducing signal formed is separated, need to add Signal separator structure 40, wherein, Signal separator structure 40, for carrying out separating treatment to the mixed signal transmitting radiofrequency signal and the transducing signal formation come via the first signal-transmitting cable 50, exports radiofrequency signal and transducing signal respectively.Take electronic equipment as mobile phone be example, in specific implementation, antenna element 10 namely antenna for mobile phone, sensing unit 20 namely capacitance sensor.
Please refer to shown in Fig. 2, is the part-structure schematic diagram of electronic equipment in the application one embodiment.In order to realize carrying out Signal transmissions between antenna modules 30 and Signal separator structure 40, need for electronic equipment adds the first signal-transmitting cable 50, be connected between antenna modules 30 and Signal separator structure 40, in addition, in order to set up the connection between antenna modules 30 and the first signal-transmitting cable 50, also need for antenna modules 30 adds the first cable connector 60, first signal-transmitting cable 50 and the first cable connector 60 annexation between the two, just such as: the relation of button and buttonhole, thus the first signal-transmitting cable 50 and the first cable connector 60 are engaged togather.The first end of the first signal-transmitting cable 50 is connected with the first cable connector 60, the mixed signal formed to make radiofrequency signal and transducing signal is transmitted in the first signal-transmitting cable 50 via the first cable connector 60, that is, mixed signal by same tunnel to Signal separator structure 40.
In the embodiment of the present application, in order to realize the connection between the first signal-transmitting cable 50 and Signal separator structure 40, Signal separator structure 40 also comprises cable block 70, cable block 70 comprises the second cable connector 80, the relation mainly annexation of the second cable connector 80 and the first signal-transmitting cable 50, such as: the first signal-transmitting cable 50 is buttons, so the second cable connector 80 is exactly buttonhole, wherein, the second end of the first signal-transmitting cable 50 is connected with the second cable connector 80.In specific design, in order to the mixed signal of radiofrequency signal and transducing signal composition is separated, Signal separator structure 40 also comprises, first filter 90, be connected with cable block 70, for filtering the transducing signal in the mixed signal received from cable block 70, obtaining and exporting radiofrequency signal.In addition, Signal separator structure 40 also comprises, and the second filter 100, is connected with cable block 70, for coming to the radio signal transmission in the mixed signal received from cable block 70, obtaining and exporting transducing signal.
In specific design, when electronic equipment is mobile phone, mobile phone radio frequency module is the functional module receiving, send and process high frequency radio wave, China is defined as 3G frequency, China Mobile TD-SCDMA is 1880MHz ~ 1900MHz and 2010MHz ~ 2025MHz, China Telecom CDMA2000 is 1920MHz ~ 1935MHz, and CHINAUNICOM WCDMA is 1940MHz ~ 1955MHz and 2130MHz ~ 2145MHz.High-frequency signal is belonged to compared with the transducing signal that the radiofrequency signal and the sensing unit 20 that export due to antenna element 10 export, so, in order to the mixed signal of the radiofrequency signal exported by the first signal-transmitting cable 50 and transducing signal composition be filtered respectively, and then obtain radiofrequency signal and transducing signal respectively.Export radiofrequency signal at antenna element 10, when sensing unit 20 exports transducing signal, the first filter 90 is high frequency filter, for being filtered by the transducing signal in mixed signal, exports radiofrequency signal; Second filter 100 is low-frequency filter, for the radiofrequency signal in mixed signal being filtered, exports transducing signal.First filter 90 is specially high frequency filter, and make high-frequency radiofrequency signal ratio be easier to pass through and stop low frequency to be passed through, it eliminates the low-frequency component in signal, namely transducing signal, thus high-frequency signal radiofrequency signal is exported.In addition, the second filter 100 is specially low-frequency filter, mainly allows to pass through lower than the signal by frequency, but higher than the intransitable electronic filtering device of signal by frequency, such as: Butterworth filter, Chebyshev filter, etc., just differ at this and one to schematically illustrate.By setting one by frequency, low frequency signal i.e. transducing signal being passed through, and is prevented from higher than the radiofrequency signal by frequency, further, the mixed signal that radiofrequency signal and transducing signal are formed is divided into two different paths.
In the embodiment of the present application, for mobile phone, in order to by detect human body near mobile phone time capacitance sensor produce transducing signal process accordingly, described electronic equipment also comprises electric capacity chip 1100, be connected with described second filter 100, for receiving transducing signal, and based on transducing signal, obtain the first capacitance formed between mobile phone and another object.Such as: the first capacitance formed between mobile phone and human body, numerical values recited is 0.05 pico farad.Because the nearlyer capacitance of human body distance mobile phone is larger, by the scope of capacitance, and then the transmitting power of antenna can be reduced, thus make antenna transmission go out suitable transmitting power, and then reduce mobile phone to the radiation of human body.
In the embodiment of the present application, due to when the mixed signal of radiofrequency signal and transducing signal composition is by cable transmission, parasitic capacitance can be produced, and then have influence on the correctness of electric capacity chip 1100 result, such as: in specific design, sensing unit 20 is specially capacitance sensor, initial capacitance due to capacitance sensor is very little general in pico farad level, and connecting sensor and electronic circuit draw cable capacitance, the parasitic capacitance that the electric capacity etc. that the stray capacitance of electronic circuit and transducer internal polar plate and peripheral conductor are formed is formed is larger, not only reduce the sensitivity of transducer, and these electric capacity are change at random, make instrument work very unstable, thus affect certainty of measurement, transducer is even made normally to work.Such as: the parasitic capacitance produced when being transmitted by the first signal-transmitting cable 50 due to mixed signal is 2 pico farads, compare the first capacitance 0.05 pico farad and want large many, so electric capacity chip 1100 also for adjusting the first capacitance based on a compensation adjustment value, obtains the second capacitance.Such as: the compensation adjustment value of setting is-2 pico farads, so just 2 pico farads owing to producing when transducing signal transmits in the first signal-transmitting cable 50 are balanced out, thus acquisition capacitance is 0.05 pico farad.In specific implementation, for the measurement of capacitance sensor, electric capacity chip provides connected mode very flexibly, Ke Yishi, in electric capacity chip, user oneself selects to be the measurement carrying out electric capacity with inner integrated discharge resistance, or circumscribing discharge resistance is measured.
In the embodiment of the present application, described electronic equipment also comprises, and power emitting unit 1200 is connected with antenna element 10.Power controller 1300, is connected between power emitting unit 1200 and electric capacity chip 1100; Take electronic equipment as mobile phone be example, when human body being detected near mobile phone, wherein, when electric capacity chip 1100 determines that the first capacitance or the second capacitance are more than or equal to a predetermined capacitance, when such as predetermined capacitance is 0.02 pico farad, and the first capacitance is 0.05 pico farad, second capacitance is 2 pico farads or 0.05 pico farad, electric capacity chip 1100 generates and exports first and controls signal to power controller 1300, the transmitting power that power controller 1300 controls power emitting unit based on the first control signal reduces, that is, so reduce mobile phone to the radiation of human body.
By the one or more technical schemes in the embodiment of the present application, at least following technique effect can be realized:
In the technical scheme of the embodiment of the present application, transducing signal due to the capacitance sensor of electronic equipment does not need additionally to increase a flexible PCB to be transmitted, just the tunnel to the radiofrequency signal of antenna and the transducing signal of capacitance sensor can be realized only by same cable, so, solve the technical problem existing in the antenna of prior art and capacitance sensor integrated process and take larger installing space, achieve the technique effect of the lightening design of antenna and capacitance sensor integrated design.
In the technical scheme of the embodiment of the present application, transducing signal due to the capacitance sensor of electronic equipment does not need additionally to increase a flexible PCB to be transmitted, just the tunnel to the radiofrequency signal of antenna and the transducing signal of capacitance sensor can be realized only by same cable, so, solve in the antenna of prior art and capacitance sensor integrated process and there is the high technical problem of design cost, achieve antenna and the low technique effect of capacitance sensor integrated design cost.
In the technical scheme of the embodiment of the present application, initial capacitance due to capacitance sensor is very little general in pico farad level, and the parasitic capacitance that the electric capacity etc. that the cable capacitance of connecting sensor and electronic circuit, the stray capacitance of electronic circuit and transducer internal polar plate and peripheral conductor are formed is formed is larger, not only reduce the sensitivity of transducer, and these electric capacity are change at random, make instrument work very unstable, thus affect certainty of measurement, even make transducer normally work.In the chip of control capacitance transducer, add an offset be used for the parasitic capacitance of offsetting additional by adopting, so, solve the inaccurate technical problem of capacitance sensor certainty of measurement that parasitic capacitance in antenna of the prior art and capacitance sensor integrated design is brought, and then achieve the technique effect of the accurate control to antenna transmission power.
In specific implementation process, although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (7)
1. an electronic equipment, comprising:
Antenna modules, comprises antenna element and sensing unit, and wherein, described antenna element is for exporting a radiofrequency signal, and described sensing unit is for exporting transducing signal;
Signal separator structure;
First signal-transmitting cable, is connected between described antenna modules and described Signal separator structure;
Wherein, the mixed signal be made up of described radiofrequency signal and described transducing signal that described Signal separator structure is used for coming via described first signal-transmitting cable transmission carries out separating treatment, exports described radiofrequency signal and described transducing signal respectively.
2. electronic equipment as claimed in claim 1, it is characterized in that, described antenna modules also comprises the first cable connector, the first end of described first signal-transmitting cable is connected with described first cable connector, transmits via described first cable connector to make described mixed signal in described first signal-transmitting cable.
3. electronic equipment as claimed in claim 2, it is characterized in that, described Signal separator structure comprises:
Cable block, comprises the second cable connector, and the second end of described first signal-transmitting cable is connected with described second cable connector;
First filter, is connected with described cable block, for filtering the transducing signal in the described mixed signal received from described cable block, obtaining and exporting described radiofrequency signal;
Second filter, is connected with described cable block, for filtering the radiofrequency signal in the described mixed signal received from described cable block, obtaining and exporting described transducing signal.
4. electronic equipment as claimed in claim 3, it is characterized in that, described electronic equipment also comprises electric capacity chip, be connected with described second filter, for receiving described transducing signal, and based on described transducing signal, obtain the first capacitance formed between described electronic equipment and another object.
5. electronic equipment as claimed in claim 4, it is characterized in that, described electric capacity chip also for adjusting described first capacitance based on a compensation adjustment value, obtains the second capacitance.
6. the electronic equipment as described in claim 3 or 4, is characterized in that, described electronic equipment also comprises:
Power emitting unit, is connected with described antenna modules;
Power controller, is connected between described power emitting unit and described electric capacity chip;
Wherein, when described electric capacity chip determines described first capacitance or described second capacitance is more than or equal to a predetermined capacitance, described electric capacity chip generates and exports first and controls signal to described power controller, and the transmitting power that described power controller controls described power emitting unit based on described first control signal reduces.
7. electronic equipment as claimed in claim 6, it is characterized in that, described radiofrequency signal is exported at described antenna element, when described sensing unit exports described transducing signal, described first filter is high frequency filter, for being filtered by the transducing signal in described mixed signal, export described radiofrequency signal; Described second filter is low-frequency filter, for the radiofrequency signal in described mixed signal being filtered, exports described transducing signal.
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