CN104993235A - Antenna apparatus and electronic equipment - Google Patents
Antenna apparatus and electronic equipment Download PDFInfo
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- CN104993235A CN104993235A CN201510325362.2A CN201510325362A CN104993235A CN 104993235 A CN104993235 A CN 104993235A CN 201510325362 A CN201510325362 A CN 201510325362A CN 104993235 A CN104993235 A CN 104993235A
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Abstract
The invention discloses an antenna apparatus and electronic equipment. The antenna apparatus comprises an antenna, a first grade circuit unit and a matching unit, wherein the first grade circuit unit comprises one inductor; the inductor possesses a first end and a second end; the first end is connected to the antenna; the matching unit possesses a third end and a fourth end; the third end is connected to the second end and the fourth end is grounded. When the electronic equipment needs to receive or send a first signal, the first grade circuit unit generates a first current corresponding to a first current frequency of the first signal so that the antenna and a metal plate which is connected to the antenna and is arranged in the electronic equipment generate resonance under an effect of the first current; a first radiation signal corresponding to the first signal is generated so that the first signal is received or sent by the electronic equipment.
Description
Technical field
The present invention relates to electronic technology field, particularly a kind of antenna assembly and electronic equipment.
Background technology
Along with the development of science and technology, electronic equipment have also been obtained development at full speed, becomes the necessity of people's daily life.In order to meet the user demand of user, the function of electronic equipment gets more and more, and to make the structure of electronic equipment become increasingly complex, thus the space that the antenna in electronic equipment can be taken is more and more less; And when low-frequency range at 700-960MHz of the communications band of electronic equipment, electromagnetic wavelength is long, in order to make antenna produce resonance, the length of antenna at least will reach 1/4 of electromagnetic wavelength, and the antenna space that this and current electronic equipment can provide forms huge contradiction.
In the prior art, for above-mentioned contradiction, propose a kind of switch adjustable antenna, this antenna utilizes rearrangeable switch, connect the elements such as different electric capacity or inductance respectively and form resonant circuit, the electric capacity corresponding according to the He Ne laser of Received signal strength or inductance component, produce radiation signal to make the metal floor of electronic equipment under the effect of resonant circuit, and carry out impedance matching by accurate capacitor element to radiation signal, and then radiation signal can be received by electronic equipment.
Present inventor, in the process realizing technical scheme in the embodiment of the present application, finds that prior art exists following technical problem:
Because the antenna of electronic equipment in prior art needs accurate capacitor element to carry out impedance matching, like this, when there is any little deviation in matching capacitance device, the impedance of radiation signal and the impedance mismatch of signal receiver will be caused, thus make signal receiver can not receive this signal well, so there is the technical problem high to the required precision of the coupling device of antenna in electronic equipment of the prior art.
Further, because electronic equipment of the prior art exists the technical problem high to the required precision of the coupling device of antenna, like this, when there is error in the precision of mating device, the performance of electronic equipment Received signal strength can be affected, so there is the technical problem of the unstable properties of antenna in electronic equipment of the prior art.
Summary of the invention
The embodiment of the present application provides a kind of antenna assembly and electronic equipment, there is the technical problem high to the required precision of the coupling device of antenna, realizing the technique effect of the required precision reduced coupling device for solving electronic equipment of the prior art.
The embodiment of the present application provides a kind of antenna assembly on the one hand, is applied in an electronic equipment, comprises:
Antenna;
First order circuit unit, described first order circuit unit includes an inductance, and described inductance has first end and the second end, and described first end is connected with described antenna;
Matching unit, has the 3rd end and the 4th end, and described 3rd end is connected with described second end, described 4th end ground connection;
Wherein, when described electronic equipment needs reception the first signal, described first order circuit unit is made to produce first electric current corresponding with the first ongoing frequency of described first signal, and then make described antenna and the metallic plate be arranged in described electronic equipment that is connected with described antenna, under the effect of described first electric current, resonance occurs, produce first radiation signal corresponding with described first signal, described matching unit is by regulating the first signal parameter that described first radiation signal is corresponding, match with the port parameter of the radio receiver making described first signal parameter and described electronic equipment, and then described first signal can be received by described electronic equipment,
When described electronic equipment needs to send secondary signal, described first order circuit unit is made to produce second electric current corresponding with the second ongoing frequency of described secondary signal, and then make described antenna and described metallic plate, under the effect of described second electric current, resonance occur, produce second radiation signal corresponding with described secondary signal, and make described second radiation signal by described antenna transmission.
Optionally, described first order circuit unit also comprises the tunable capacitor being connected in parallel on described first end and described second end;
Wherein, when described electronic equipment needs to receive described first signal, described first ongoing frequency of described first signal is detected by the detecting unit of described electronic equipment, the control unit of described electronic equipment regulates the current capacitor value of described tunable capacitor to be in first capacitor value corresponding with described first ongoing frequency based on described first ongoing frequency, produces described first electric current to make described first order circuit unit;
When described electronic equipment needs to send described secondary signal, described second ongoing frequency of described secondary signal is detected by described detecting unit, described control unit regulates the current capacitor value of described tunable capacitor to be in second capacitor value corresponding with described second ongoing frequency based on described second ongoing frequency, produces described second electric current to make described first order circuit unit.
Optionally, when described antenna is in low frequency operation state, described current capacitor value is specially the 3rd capacitor value being less than or equal to a predetermined threshold value, is inductive with the first impedance making described first order circuit unit corresponding, and then enables described inductance carry out tuning to described antenna.
Optionally, when described antenna is in high-frequency work state, described current capacitor value is specially the 4th capacitor value being greater than described predetermined threshold value, is capacitive character with the second impedance making described first order circuit unit corresponding, and then eliminates the high inhibition effect of described inductance in described high-frequency work state.
Optionally, when described matching unit is specially a coupling inductance, described matching unit regulates specifically for the port Impedance value according to described radio receiver the first signal impedance value that described first radiation signal is corresponding, matches to make described first signal impedance value and described port Impedance value.
Optionally, when described matching unit to be specially by least one coupling inductance and at least one matching capacitance by parallel or a matching network that is that be composed in series, described matching unit regulates specifically for the port power according to described radio receiver the first signal power that described first radiation signal is corresponding, matches to make described first signal power and described port power; Or
Described matching unit regulates specifically for the port Impedance value according to described radio receiver the first signal impedance value that described first radiation signal is corresponding, matches to make described first signal impedance value and described port Impedance value.
Optionally, the first length that the first length of described antenna is less than 1/4 or described antenna of first wave length corresponding to described first radiation signal is less than 1/4 of second wave length corresponding to described second radiation signal.
The embodiment of the present application provides a kind of electronic equipment on the other hand, comprising:
Housing;
Metallic plate, is arranged in described housing;
Antenna assembly, be arranged in described housing, be connected with described metallic plate, described antenna assembly specifically comprises: antenna; First order circuit unit, described first order circuit unit includes an inductance, and described inductance has first end and the second end, and described first end is connected with described antenna; Matching unit, has the 3rd end and the 4th end, and described 3rd end is connected with described second end, described 4th end ground connection;
Wherein, when described electronic equipment needs reception the first signal, described antenna produces first electric current corresponding with the first ongoing frequency of described first signal with described first order circuit unit, and then make described antenna and described metallic plate, under the effect of described first electric current, resonance occur, produce first radiation signal corresponding with described first signal, described matching unit is by regulating the first signal parameter that described first radiation signal is corresponding, match with the port parameter of the radio receiver making described first signal parameter and described electronic equipment, and then described first signal can be received by described electronic equipment,
When described electronic equipment needs to send secondary signal, described antenna produces second electric current corresponding with the second ongoing frequency of described secondary signal with described first order circuit unit, and then make described antenna and described metallic plate, under the effect of described second electric current, resonance occur, produce second radiation signal corresponding with described secondary signal, and make described second radiation signal by described antenna transmission.
Optionally, when described electronic equipment also includes frequency detector and controller, described first order circuit unit also comprises the tunable capacitor being connected in parallel on described first end and described second end;
Wherein, when described electronic equipment needs to receive described first signal, described first ongoing frequency of described first signal is detected by described frequency detector, described controller regulates the current capacitor value of described tunable capacitor to be in first capacitor value corresponding with described first ongoing frequency based on described first ongoing frequency, produces described first electric current to make described first order circuit unit;
When described electronic equipment needs to send described secondary signal, described second ongoing frequency of described secondary signal is detected by described frequency detector, described controller regulates the current capacitor value of described tunable capacitor to be in second capacitor value corresponding with described second ongoing frequency based on described second ongoing frequency, produces described second electric current to make described first order circuit unit.
Optionally, when described antenna is in low frequency operation state, described current capacitor value is specially the 3rd capacitor value being less than or equal to a predetermined threshold value, is inductive with the first impedance making described first order circuit unit corresponding, and then enables described inductance carry out tuning to described antenna.
Optionally, when described antenna is in high-frequency work state, described current capacitor value is specially the 4th capacitor value being greater than described predetermined threshold value, is capacitive character with the second impedance making described first order circuit unit corresponding, and then eliminates the high inhibition effect of described inductance in described high-frequency work state.
Optionally, when described matching unit is specially a coupling inductance, described matching unit regulates specifically for the port Impedance value according to described radio receiver the first signal impedance value that described first radiation signal is corresponding, matches to make described first signal impedance value and described port Impedance value.
Optionally, when described matching unit to be specially by least one coupling inductance and at least one matching capacitance by parallel or a matching network that is that be composed in series, described matching unit regulates specifically for the port power according to described radio receiver the first signal power that described first radiation signal is corresponding, matches to make described first signal power and described port power; Or
Described matching unit regulates specifically for the port Impedance value according to described radio receiver the first signal impedance value that described first radiation signal is corresponding, matches to make described first signal impedance value and described port Impedance value.
Optionally, the first length that the first length of described antenna is less than 1/4 or described antenna of first wave length corresponding to described first radiation signal is less than 1/4 of second wave length corresponding to described second radiation signal.
Above-mentioned one or more technical scheme in the embodiment of the present application, at least has one or more technique effects following:
One, due to the technical scheme in the embodiment of the present application, adopt first order circuit unit, described first order circuit unit includes an inductance, described inductance has first end and the second end, the technological means that described first end is connected with described antenna, like this, inductance is connected in the mode of connecting with antenna, the perception of inductance is utilized to offset the capacitive of nature, form series resonance, because series inductance effectively can eliminate the capacitive of antenna self, so, now matching unit only plays optimization function to the low-and high-frequency of current resonance, the device of matching unit can not bring larger deviation to the impedance matching of whole antenna, thus do not need accurate capacitor element just can realize impedance optimization, so, efficiently solve electronic equipment of the prior art and there is the technical problem high to the required precision of the coupling device of antenna, realize the technique effect of the required precision reduced coupling device.
Two, due to the technical scheme in the embodiment of the present application, adopt first order circuit unit, described first order circuit unit includes an inductance, described inductance has first end and the second end, the technological means that described first end is connected with described antenna, like this, inductance is connected in the mode of connecting with antenna, the perception of inductance is utilized to offset the capacitive of nature, form series resonance, because series inductance effectively can eliminate the capacitive of antenna self, so, now matching unit only plays optimization function to the low-and high-frequency of current resonance, the device of matching unit can not bring larger deviation to the impedance matching of whole antenna, and then the performance of electronic equipment Received signal strength can not be affected, so, efficiently solve the technical problem that electronic equipment of the prior art exists the unstable properties of antenna, achieve the technique effect of the stability improving antenna performance.
Three, due to the technical scheme in the embodiment of the present application, described first order circuit unit is adopted also to comprise the technological means of the tunable capacitor being connected in parallel on described first end and described second end, like this, when antenna in low frequency operation time, by the control unit of electronic equipment, tunable capacitor is transferred to low capacitance, now, tunable capacitor is similar to open circuit, meets the impedance matching of antenna low frequency operation; When antenna at high-frequency work time, tunable capacitor is transferred to high capacity by control unit, now, tunable capacitor is similar to path, eliminate the high inhibition effect of series inductance at high frequency, and then do not affect the high-frequency work of antenna yet, so, achieve the technique effect that an antenna assembly can meet high and low frequency work requirements simultaneously.
Four, due to the technical scheme in the embodiment of the present application, the first length adopting the first length of described antenna to be less than 1/4 or described antenna of first wave length corresponding to described first radiation signal is less than 1/4 of second wave length corresponding to described second radiation signal and makes described first order circuit unit produce first electric current corresponding with the first ongoing frequency of described first signal, and then make described antenna and the metallic plate be arranged in described electronic equipment that is connected with described antenna, under the effect of described first electric current, resonance occurs, produce the technological means of first radiation signal corresponding with described first signal, like this, length due to antenna is less than 1/4 of signal wavelength, namely the length of antenna is short electrical length, antenna assembly adopts and utilizes match circuit and floor mode radiation thus the non-resonant manner producing reasonable radiation, therefore, antenna assembly is while realizing good radiation effect, further shorten antenna length, achieve the technique effect saving electronic device space.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention or prior art, in describing embodiment below, the required accompanying drawing used is briefly described, and apparently, the accompanying drawing in the following describes is only some embodiments of the present invention.
Fig. 1 is the structural representation of the application first better embodiment antenna assembly;
Fig. 2 is the schematic diagram that the application first better embodiment antenna assembly is arranged on electronic equipment top;
Fig. 3 is the structural representation that in the application first better embodiment antenna assembly, first order circuit unit 20 includes a tunable capacitor 22;
Fig. 4 is the structural representation of the application second better embodiment electronic equipment.
Embodiment
The embodiment of the present application provides a kind of antenna assembly and electronic equipment, there is the technical problem high to the required precision of the coupling device of antenna, realizing the technique effect of the required precision reduced coupling device for solving electronic equipment of the prior art.
Technical scheme in the embodiment of the present application is for solving the problems of the technologies described above, and general thought is as follows:
A kind of antenna assembly, is applied in an electronic equipment, comprises:
Antenna;
First order circuit unit, described first order circuit unit includes an inductance, and described inductance has first end and the second end, and described first end is connected with described antenna;
Matching unit, has the 3rd end and the 4th end, and described 3rd end is connected with described second end, described 4th end ground connection;
Wherein, when described electronic equipment needs reception the first signal, described first order circuit unit is made to produce first electric current corresponding with the first ongoing frequency of described first signal, and then make described antenna and the metallic plate be arranged in described electronic equipment that is connected with described antenna, under the effect of described first electric current, resonance occurs, produce first radiation signal corresponding with described first signal, described matching unit is by regulating the first signal parameter that described first radiation signal is corresponding, match with the port parameter of the radio receiver making described first signal parameter and described electronic equipment, and then described first signal can be received by described electronic equipment,
When described electronic equipment needs to send secondary signal, described first order circuit unit is made to produce second electric current corresponding with the second ongoing frequency of described secondary signal, and then make described antenna and described metallic plate, under the effect of described second electric current, resonance occur, produce second radiation signal corresponding with described secondary signal, and make described second radiation signal by described antenna transmission.
In technique scheme, adopt first order circuit unit, described first order circuit unit includes an inductance, described inductance has first end and the second end, the technological means that described first end is connected with described antenna, like this, inductance is connected in the mode of connecting with antenna, the perception of inductance is utilized to offset the capacitive of nature, form series resonance, because series inductance effectively can eliminate the capacitive of antenna self, so, now matching unit only plays optimization function to the low-and high-frequency of current resonance, the device of matching unit can not bring larger deviation to the impedance matching of whole antenna, thus do not need accurate capacitor element just can realize impedance optimization, so, efficiently solve electronic equipment of the prior art and there is the technical problem high to the required precision of the coupling device of antenna, realize the technique effect of the required precision reduced coupling device.
In order to better understand such 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 combine mutually.
Embodiment one
As shown in Figure 1, be the structural representation of the application first better embodiment antenna assembly.Described antenna assembly is arranged in an electronic equipment, for receiving and launch the wireless signal of described electronic equipment.In actual applications, described electronic equipment can be notebook computer, panel computer, mobile phone etc., also can be that other needs the electronic equipment of transmitting/receiving wireless signal, and at this, just differing one schematically illustrates.In specific descriptions below, will be that mobile phone is described the antenna assembly in the embodiment of the present application for described electronic equipment.
A kind of antenna assembly, is applied in an electronic equipment, comprises:
Antenna 10;
First order circuit unit 20, first order circuit unit 20 includes an inductance 21, and inductance 21 has first end 211 and the second end 212, and first end 211 is connected with antenna 10;
Matching unit 30, has the 3rd end 31 and the 4th end the 32, three end 31 is connected with the second end 212, the 4th end 32 ground connection;
Wherein, when described electronic equipment needs reception the first signal, first order circuit unit 20 is made to produce first electric current corresponding with the first ongoing frequency of described first signal, and then make antenna 10 and the metallic plate be arranged in described electronic equipment that is connected with antenna 10, under the effect of described first electric current, resonance occurs, produce first radiation signal corresponding with described first signal, matching unit 30 is by regulating the first signal parameter that described first radiation signal is corresponding, match with the port parameter of the radio receiver making described first signal parameter and described electronic equipment, and then described first signal can be received by described electronic equipment,
When described electronic equipment needs to send secondary signal, first order circuit unit 20 is made to produce second electric current corresponding with the second ongoing frequency of described secondary signal, and then make antenna 10 and described metallic plate, under the effect of described second electric current, resonance occur, produce second radiation signal corresponding with described secondary signal, and described second radiation signal is launched by antenna 10.
In specific implementation process, when described electronic equipment is mobile phone, as shown in Figure 2, described metallic plate can be specifically the pcb board including each functional module in mobile phone, for being grounded; Described antenna assembly can be arranged on top or the bottom of mobile phone, also can be arranged on bottom mobile phone top and mobile phone by described antenna assembly simultaneously, in the embodiment of the present application, not be restricted the particular location of antenna assembly.Be arranged on bottom mobile phone for described antenna assembly, described antenna assembly is specifically divided into antenna 10 and the match circuit corresponding with antenna 10, i.e. first order circuit unit 20 and matching unit 30.Antenna 10 can be specifically a sheet metal, and its concrete shape can set according to actual needs, is not restricted in the embodiment of the present application.First order circuit unit 20 mainly includes an inductance 21, its induction reactance value is selected according to actual needs, first end 211 in inductance 21 is connected with antenna 10, series system is formed with antenna 10, second end 212 of inductance 21 is connected with the 3rd end 31 of matching unit 30, the 4th section 32 of matching unit 30 is connected with described metallic plate, is grounded.
In specific implementation process, in order to reduce the mobile phone space that antenna assembly takies, the first length that the first length of antenna 10 is less than 1/4 or described antenna of first wave length corresponding to described first radiation signal is less than 1/4 of second wave length corresponding to described second radiation signal.In general, antenna is when receiving or send signal and producing resonance, the length of its antenna at least needs 1/4 of its radiation signal wavelength, as the electromagnetic wave of 1GHz, its wavelength is 300mm, and so in order to receive this electromagnetic wave signal, antenna must produce resonance with described electromagnetic wave signal, at this moment, the length of antenna just must be more than or equal to 300/4=75mm.In the embodiment of the present application, the length of antenna is set to be less than the short electrical length of 1/4 of radiation signal wavelength, and as 50mm, 25mm etc., correspondingly, what described antenna assembly adopted is disresonance form, utilizes the common resonance of match circuit and pcb board to produce radiation.
In the embodiment of the present application, in order to make described antenna assembly energy simultaneously in low-frequency range and high band operation, first order circuit unit 20 also comprises the tunable capacitor 22 being connected in parallel on first end 211 and the second end 212, as shown in Figure 3, wherein, when described electronic equipment needs to receive described first signal, described first ongoing frequency of described first signal is detected by the detecting unit of described electronic equipment, the control unit of described electronic equipment regulates the current capacitor value of tunable capacitor 22 to be in first capacitor value corresponding with described first ongoing frequency based on described first ongoing frequency, described first electric current is produced to make first order circuit unit 20,
When described electronic equipment needs to send described secondary signal, described second ongoing frequency of described secondary signal is detected by described detecting unit, described control unit regulates the current capacitor value of tunable capacitor 22 to be in second capacitor value corresponding with described second ongoing frequency based on described second ongoing frequency, produces described second electric current to make first order circuit unit 20.
In specific implementation process, tunable capacitor 22 is specifically as follows BST tunable capacitor, paster tunable capacitor (SMD), plug-in unit tunable capacitor (DIP), or ceramic tunable capacitor, PVC tunable capacitor, air adjustable electric capacity etc., those of ordinary skill in the art can select according to actual needs, are not restricted in the embodiment of the present application.When described electronic equipment is mobile phone, the detecting unit for detection signal frequency is included in mobile phone, as signal explorer, and the controller etc. to mate with described antenna assembly, when signal explorer has detected an electromagnetic wave signal, signal explorer can detect the signal frequency of this electromagnetic wave signal automatically, and testing result is sent to controller, then controller just can according to the capacitor value of the signal frequency adjustment tunable capacitor detected, thus make first order circuit unit 20 can produce the first electric current.
In the embodiment of the present application, when antenna 10 is in low frequency operation state, described current capacitor value is specially the 3rd capacitor value being less than or equal to a predetermined threshold value, is inductive with the first impedance making described first order circuit unit corresponding, and then enables described inductance carry out tuning to described antenna; When antenna 10 is in high-frequency work state, described current capacitor value is specially the 4th capacitor value being greater than described predetermined threshold value, be capacitive character with the second impedance making first order circuit unit corresponding, and then eliminate the high inhibition effect of described inductance in described high-frequency work state.
In specific implementation process, specifically there is the following two kinds implementation to the adjustment of described current capacitor value:
First kind of way:
Continue to use above-mentioned example, and with the induction reactance value of inductance 21 be 15nH, tunable capacitor 22 is that (position of minimum capacitance of BST tunable capacitor is for 4pF for BST tunable capacitor, maximum capacitor value is 16pF) be example, when the signal explorer of mobile phone is tested with a signal to be received, signal explorer can detect the signal frequency of this signal to be received automatically, signal frequency as this signal is 700MHz, then testing result is sent to controller by signal explorer, controller judges that the signal frequency of 700MHz is low frequency, just the capacitance of BST tunable capacitor is adjusted to minimum value 4pF; When the signal frequency that signal explorer detects signal to be received is 1710MHz, controller judges that the signal frequency of 1710MHz is high frequency, just the capacitance of BST tunable capacitor is adjusted to maximum 16pF.
The second way:
Continue to use above-mentioned example, and with the induction reactance value of inductance 21 for 15nH, tunable capacitor 22 is that (position of minimum capacitance of BST tunable capacitor is 4pF to BST tunable capacitor, maximum capacitor value is 16pF) be example, when the signal explorer of mobile phone is tested with a signal to be received, signal explorer can detect the signal frequency of this signal to be received automatically, signal frequency as this signal is 700MHz, then testing result is sent to controller by signal explorer, controller judges that the signal frequency of 700MHz is low frequency, just the capacitance of BST tunable capacitor is adjusted to any one capacitance being less than 8pF, due to the minimum value that 700MHz is the low frequency signal that described antenna assembly can receive, so now BST capacitance can be adjusted to minimum value 4pF, when the signal frequency that signal explorer detects signal to be received is 800MHz, controller judges that the signal frequency of 800MHz is still low frequency, just the capacitance of BST tunable capacitor is adjusted to any one capacitance being less than 8pF, because 800MHz is positioned at the median of low frequency signal frequency range, so the capacitance of this Time Controller control BST tunable capacitor is adjusted to 6pF, when the signal frequency that signal explorer detects signal to be received is 1710MHz, controller judges that the signal frequency of 1710MHz is high frequency, just the capacitance of BST tunable capacitor is adjusted to any one capacitance being greater than 10pF, now BST capacitance can be adjusted to 16pF, when signal frequency is 2170MHz, the capacitance of BST tunable capacitor can be adjusted to 10pF by controller.
In the embodiment of the present application, when first order circuit unit 20 produces resonance current, and then after making antenna 10 and metallic plate produce radiation signal, in order to optimize impedance matching further, in described antenna assembly, also include matching unit 30.In specific implementation process, matching unit 30 has the following two kinds specific implementation:
First kind of way:
Matching unit 30 is specially a coupling inductance, correspondingly, matching unit 30 regulates specifically for the port Impedance value according to described radio receiver the first signal impedance value that described first radiation signal is corresponding, matches to make described first signal impedance value and described port Impedance value.
In specific implementation process, matching unit 30 can be an inductance, and its induction reactance value can be 10nH, 5nH etc., and the induction reactance value of described inductance can be selected according to actual needs.The overall impedance value of described antenna assembly is adjusted by the induction reactance value of described inductance, and then the resistance value of the radiation signal making described antenna assembly produce meets the resistance value scope of the signal that radio receiver port can receive in mobile phone, and then described first signal is received by mobile phone.
The second way:
Matching unit 30 is specially and passes through a matching network that is in parallel or that be composed in series by least one coupling inductance and at least one matching capacitance, correspondingly, matching unit 30 regulates specifically for the port power according to described radio receiver the first signal power that described first radiation signal is corresponding, matches to make described first signal power and described port power; Or
Matching unit 30 regulates specifically for the port Impedance value according to described radio receiver the first signal impedance value that described first radiation signal is corresponding, matches to make described first signal impedance value and described port Impedance value.
In specific implementation process, the matching network that matching unit 30 can be made up of multiple electric capacity, inductance component, the induction reactance value of inductance can be 10nH, 5nH etc., and the capacitor value of electric capacity can be 2pF, 3pF etc., and those of ordinary skill in the art can select according to actual needs.The overall impedance value of described antenna assembly is adjusted by the induction reactance value of described inductance and the capacitor value of described electric capacity, and then in the signal power of the resistance value of the radiation signal that described antenna assembly the is produced resistance value scope that meets the signal that radio receiver port can receive in mobile phone or radiation signal that described antenna assembly is produced and mobile phone, the received power of radio receiver port matches, and then described first signal is received by mobile phone.
Embodiment two
Based on the inventive concept same with a kind of antenna assembly of the embodiment of the present application, as shown in Figure 4, be the structural representation of the application second better embodiment electronic equipment.In actual applications, described electronic equipment can be notebook computer, panel computer, mobile phone etc., also can be that other needs to transmit and receive the electronic equipment of wireless signal, and at this, just differing one schematically illustrates.In specific descriptions below, for described electronic equipment for mobile phone, will be described.
A kind of electronic equipment, comprising:
Housing 101;
Metallic plate 102, is arranged in housing 101;
Antenna assembly 103, be arranged in housing 101, be connected with metallic plate 102, antenna assembly 103 specifically comprises: antenna; First order circuit unit, described first order circuit unit includes an inductance, and described inductance has first end and the second end, and described first end is connected with described antenna; Matching unit, has the 3rd end and the 4th end, and described 3rd end is connected with described second end, described 4th end ground connection;
Wherein, when described electronic equipment needs reception the first signal, described antenna produces first electric current corresponding with the first ongoing frequency of described first signal with described first order circuit unit, and then make described antenna and metallic plate 102, under the effect of described first electric current, resonance occur, produce first radiation signal corresponding with described first signal, described matching unit is by regulating the first signal parameter that described first radiation signal is corresponding, match with the port parameter of the radio receiver making described first signal parameter and described electronic equipment, and then described first signal can be received by described electronic equipment,
When described electronic equipment needs to send secondary signal, described antenna produces second electric current corresponding with the second ongoing frequency of described secondary signal with described first order circuit unit, and then make described antenna and metallic plate 102, under the effect of described second electric current, resonance occur, produce second radiation signal corresponding with described secondary signal, and make described second radiation signal by described antenna transmission.
In specific implementation process, for described electronic equipment for mobile phone, antenna assembly 103 can be arranged on mobile phone top, as shown in the figure, also can be arranged on bottom mobile phone, when the antenna space that mobile phone is reserved allows, also can all be provided with antenna assembly 103 at mobile phone top and bottom simultaneously, not be restricted in the embodiment of the present application.
In the embodiment of the present application two, when described electronic equipment also includes frequency detector and controller, described first order circuit unit also comprises the tunable capacitor being connected in parallel on described first end and described second end;
Wherein, when described electronic equipment needs to receive described first signal, described first ongoing frequency of described first signal is detected by described frequency detector, described controller regulates the current capacitor value of described tunable capacitor to be in first capacitor value corresponding with described first ongoing frequency based on described first ongoing frequency, produces described first electric current to make described first order circuit unit;
When described electronic equipment needs to send described secondary signal, described second ongoing frequency of described secondary signal is detected by described frequency detector, described controller regulates the current capacitor value of described tunable capacitor to be in second capacitor value corresponding with described second ongoing frequency based on described second ongoing frequency, produces described second electric current to make described first order circuit unit.
In the embodiment of the present application two, when described antenna is in low frequency operation state, described current capacitor value is specially the 3rd capacitor value being less than or equal to a predetermined threshold value, be inductive with the first impedance making described first order circuit unit corresponding, and then enable described inductance carry out tuning to described antenna.
In the embodiment of the present application two, when described antenna is in high-frequency work state, described current capacitor value is specially the 4th capacitor value being greater than described predetermined threshold value, be capacitive character with the second impedance making described first order circuit unit corresponding, and then eliminate the high inhibition effect of described inductance in described high-frequency work state.
In the embodiment of the present application two, when described matching unit is specially a coupling inductance, described matching unit regulates specifically for the port Impedance value according to described radio receiver the first signal impedance value that described first radiation signal is corresponding, matches to make described first signal impedance value and described port Impedance value.
In the embodiment of the present application two, when described matching unit to be specially by least one coupling inductance and at least one matching capacitance by parallel or a matching network that is that be composed in series, described matching unit regulates specifically for the port power according to described radio receiver the first signal power that described first radiation signal is corresponding, matches to make described first signal power and described port power; Or
Described matching unit regulates specifically for the port Impedance value according to described radio receiver the first signal impedance value that described first radiation signal is corresponding, matches to make described first signal impedance value and described port Impedance value.
In the embodiment of the present application two, the first length that the first length of described antenna is less than 1/4 or described antenna of first wave length corresponding to described first radiation signal is less than 1/4 of second wave length corresponding to described second radiation signal.
By the one or more technical schemes in the embodiment of the present application, following one or more technique effect can be realized:
One, due to the technical scheme in the embodiment of the present application, adopt first order circuit unit, described first order circuit unit includes an inductance, described inductance has first end and the second end, the technological means that described first end is connected with described antenna, like this, inductance is connected in the mode of connecting with antenna, the perception of inductance is utilized to offset the capacitive of nature, form series resonance, because series inductance effectively can eliminate the capacitive of antenna self, so, now matching unit only plays optimization function to the low-and high-frequency of current resonance, the device of matching unit can not bring larger deviation to the impedance matching of whole antenna, thus do not need accurate capacitor element just can realize impedance optimization, so, efficiently solve electronic equipment of the prior art and there is the technical problem high to the required precision of the coupling device of antenna, realize the technique effect of the required precision reduced coupling device.
Two, due to the technical scheme in the embodiment of the present application, adopt first order circuit unit, described first order circuit unit includes an inductance, described inductance has first end and the second end, the technological means that described first end is connected with described antenna, like this, inductance is connected in the mode of connecting with antenna, the perception of inductance is utilized to offset the capacitive of nature, form series resonance, because series inductance effectively can eliminate the capacitive of antenna self, so, now matching unit only plays optimization function to the low-and high-frequency of current resonance, the device of matching unit can not bring larger deviation to the impedance matching of whole antenna, and then the performance of electronic equipment Received signal strength can not be affected, so, efficiently solve the technical problem that electronic equipment of the prior art exists the unstable properties of antenna, achieve the technique effect of the stability improving antenna performance.
Three, due to the technical scheme in the embodiment of the present application, described first order circuit unit is adopted also to comprise the technological means of the tunable capacitor being connected in parallel on described first end and described second end, like this, when antenna in low frequency operation time, by the control unit of electronic equipment, tunable capacitor is transferred to low capacitance, now, tunable capacitor is similar to open circuit, meets the impedance matching of antenna low frequency operation; When antenna at high-frequency work time, tunable capacitor is transferred to high capacity by control unit, now, tunable capacitor is similar to path, eliminate the high inhibition effect of series inductance at high frequency, and then do not affect the high-frequency work of antenna yet, so, achieve the technique effect that an antenna assembly can meet high and low frequency work requirements simultaneously.
Four, due to the technical scheme in the embodiment of the present application, the first length adopting the first length of described antenna to be less than 1/4 or described antenna of first wave length corresponding to described first radiation signal is less than 1/4 of second wave length corresponding to described second radiation signal and makes described first order circuit unit produce first electric current corresponding with the first ongoing frequency of described first signal, and then make described antenna and the metallic plate be arranged in described electronic equipment that is connected with described antenna, under the effect of described first electric current, resonance occurs, produce the technological means of first radiation signal corresponding with described first signal, like this, length due to antenna is less than 1/4 of signal wavelength, namely the length of antenna is short electrical length, antenna assembly adopts and utilizes match circuit and floor mode radiation thus the non-resonant manner producing reasonable radiation, therefore, antenna assembly is while realizing good radiation effect, further shorten antenna length, achieve the technique effect saving electronic device space.
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 (14)
1. an antenna assembly, is applied in an electronic equipment, comprises:
Antenna;
First order circuit unit, described first order circuit unit includes an inductance, and described inductance has first end and the second end, and described first end is connected with described antenna;
Matching unit, has the 3rd end and the 4th end, and described 3rd end is connected with described second end, described 4th end ground connection;
Wherein, when described electronic equipment needs reception the first signal, described first order circuit unit is made to produce first electric current corresponding with the first ongoing frequency of described first signal, and then make described antenna and the metallic plate be arranged in described electronic equipment that is connected with described antenna, under the effect of described first electric current, resonance occurs, produce first radiation signal corresponding with described first signal, described matching unit is by regulating the first signal parameter that described first radiation signal is corresponding, match with the port parameter of the radio receiver making described first signal parameter and described electronic equipment, and then described first signal can be received by described electronic equipment,
When described electronic equipment needs to send secondary signal, described first order circuit unit is made to produce second electric current corresponding with the second ongoing frequency of described secondary signal, and then make described antenna and described metallic plate, under the effect of described second electric current, resonance occur, produce second radiation signal corresponding with described secondary signal, and make described second radiation signal by described antenna transmission.
2. antenna assembly as claimed in claim 1, it is characterized in that, described first order circuit unit also comprises the tunable capacitor being connected in parallel on described first end and described second end;
Wherein, when described electronic equipment needs to receive described first signal, described first ongoing frequency of described first signal is detected by the detecting unit of described electronic equipment, the control unit of described electronic equipment regulates the current capacitor value of described tunable capacitor to be in first capacitor value corresponding with described first ongoing frequency based on described first ongoing frequency, produces described first electric current to make described first order circuit unit;
When described electronic equipment needs to send described secondary signal, described second ongoing frequency of described secondary signal is detected by described detecting unit, described control unit regulates the current capacitor value of described tunable capacitor to be in second capacitor value corresponding with described second ongoing frequency based on described second ongoing frequency, produces described second electric current to make described first order circuit unit.
3. antenna assembly as claimed in claim 2, it is characterized in that, when described antenna is in low frequency operation state, described current capacitor value is specially the 3rd capacitor value being less than or equal to a predetermined threshold value, be inductive with the first impedance making described first order circuit unit corresponding, and then enable described inductance carry out tuning to described antenna.
4. antenna assembly as claimed in claim 2, it is characterized in that, when described antenna is in high-frequency work state, described current capacitor value is specially the 4th capacitor value being greater than described predetermined threshold value, be capacitive character with the second impedance making described first order circuit unit corresponding, and then eliminate the high inhibition effect of described inductance in described high-frequency work state.
5. the antenna assembly as described in claim 3 or 4, it is characterized in that, when described matching unit is specially a coupling inductance, described matching unit regulates specifically for the port Impedance value according to described radio receiver the first signal impedance value that described first radiation signal is corresponding, matches to make described first signal impedance value and described port Impedance value.
6. the antenna assembly as described in claim 3 or 4, it is characterized in that, when described matching unit to be specially by least one coupling inductance and at least one matching capacitance by parallel or a matching network that is that be composed in series, described matching unit regulates specifically for the port power according to described radio receiver the first signal power that described first radiation signal is corresponding, matches to make described first signal power and described port power; Or
Described matching unit regulates specifically for the port Impedance value according to described radio receiver the first signal impedance value that described first radiation signal is corresponding, matches to make described first signal impedance value and described port Impedance value.
7. antenna assembly as claimed in claim 6, is characterized in that, the first length that the first length of described antenna is less than 1/4 or described antenna of first wave length corresponding to described first radiation signal is less than 1/4 of second wave length corresponding to described second radiation signal.
8. an electronic equipment, comprising:
Housing;
Metallic plate, is arranged in described housing;
Antenna assembly, be arranged in described housing, be connected with described metallic plate, described antenna assembly specifically comprises: antenna; First order circuit unit, described first order circuit unit includes an inductance, and described inductance has first end and the second end, and described first end is connected with described antenna; Matching unit, has the 3rd end and the 4th end, and described 3rd end is connected with described second end, described 4th end ground connection;
Wherein, when described electronic equipment needs reception the first signal, described antenna produces first electric current corresponding with the first ongoing frequency of described first signal with described first order circuit unit, and then make described antenna and described metallic plate, under the effect of described first electric current, resonance occur, produce first radiation signal corresponding with described first signal, described matching unit is by regulating the first signal parameter that described first radiation signal is corresponding, match with the port parameter of the radio receiver making described first signal parameter and described electronic equipment, and then described first signal can be received by described electronic equipment,
When described electronic equipment needs to send secondary signal, described antenna produces second electric current corresponding with the second ongoing frequency of described secondary signal with described first order circuit unit, and then make described antenna and described metallic plate, under the effect of described second electric current, resonance occur, produce second radiation signal corresponding with described secondary signal, and make described second radiation signal by described antenna transmission.
9. electronic equipment as claimed in claim 8, it is characterized in that, when described electronic equipment also includes frequency detector and controller, described first order circuit unit also comprises the tunable capacitor being connected in parallel on described first end and described second end;
Wherein, when described electronic equipment needs to receive described first signal, described first ongoing frequency of described first signal is detected by described frequency detector, described controller regulates the current capacitor value of described tunable capacitor to be in first capacitor value corresponding with described first ongoing frequency based on described first ongoing frequency, produces described first electric current to make described first order circuit unit;
When described electronic equipment needs to send described secondary signal, described second ongoing frequency of described secondary signal is detected by described frequency detector, described controller regulates the current capacitor value of described tunable capacitor to be in second capacitor value corresponding with described second ongoing frequency based on described second ongoing frequency, produces described second electric current to make described first order circuit unit.
10. electronic equipment as claimed in claim 9, it is characterized in that, when described antenna is in low frequency operation state, described current capacitor value is specially the 3rd capacitor value being less than or equal to a predetermined threshold value, be inductive with the first impedance making described first circuit unit corresponding, and then enable described inductance carry out tuning to described antenna.
11. electronic equipments as claimed in claim 10, it is characterized in that, when described antenna is in high-frequency work state, described current capacitor value is specially the 4th capacitor value being greater than described predetermined threshold value, be capacitive character with the second impedance making described first order circuit unit corresponding, and then eliminate the high inhibition effect of described inductance in described high-frequency work state.
12. electronic equipments as described in claim 10 or 11, it is characterized in that, when described matching unit is specially a coupling inductance, described matching unit regulates specifically for the port Impedance value according to described radio receiver the first signal impedance value that described first radiation signal is corresponding, matches to make described first signal impedance value and described port Impedance value.
13. electronic equipments as described in claim 10 or 11, it is characterized in that, when described matching unit to be specially by least one coupling inductance and at least one matching capacitance by parallel or a matching network that is that be composed in series, described matching unit regulates specifically for the port power according to described radio receiver the first signal power that described first radiation signal is corresponding, matches to make described first signal power and described port power; Or
Described matching unit regulates specifically for the port Impedance value according to described radio receiver the first signal impedance value that described first radiation signal is corresponding, matches to make described first signal impedance value and described port Impedance value.
14. electronic equipments as claimed in claim 13, is characterized in that, the first length that the first length of described antenna is less than 1/4 or described antenna of first wave length corresponding to described first radiation signal is less than 1/4 of second wave length corresponding to described second radiation signal.
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| CN201510325362.2A CN104993235B (en) | 2015-06-12 | 2015-06-12 | A kind of antenna assembly and electronic equipment |
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| CN201510325362.2A CN104993235B (en) | 2015-06-12 | 2015-06-12 | A kind of antenna assembly and electronic equipment |
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| CN104993235B CN104993235B (en) | 2019-01-15 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105140644A (en) * | 2015-08-24 | 2015-12-09 | 联想(北京)有限公司 | Antenna and electronic equipment |
| CN107369912A (en) * | 2016-05-11 | 2017-11-21 | 中兴通讯股份有限公司 | Antenna and antenna tuning method |
| CN108288767A (en) * | 2017-12-29 | 2018-07-17 | 瑞声精密制造科技(常州)有限公司 | Antenna system and mobile terminal |
| CN114584156A (en) * | 2020-12-02 | 2022-06-03 | 杭州海康威视数字技术股份有限公司 | Monitoring device and communication control method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1778049A (en) * | 2003-04-18 | 2006-05-24 | 株式会社友华 | Variable tuning antenna and mobile wireless device using same |
| CN101447604A (en) * | 2008-12-30 | 2009-06-03 | 清华大学 | Built-in antenna for digital video broadcast-handheld mobile terminal based on variable-capacitance matching circuit |
| WO2010107211A2 (en) * | 2009-03-16 | 2010-09-23 | 주식회사 이엠따블유 | Multi-band antenna device and a communications device employing the same |
| JP2011193362A (en) * | 2010-03-16 | 2011-09-29 | Murata Mfg Co Ltd | Antenna |
| CN103141031A (en) * | 2011-02-23 | 2013-06-05 | 株式会社村田制作所 | Impedance converting circuit and communication terminal apparatus |
-
2015
- 2015-06-12 CN CN201510325362.2A patent/CN104993235B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1778049A (en) * | 2003-04-18 | 2006-05-24 | 株式会社友华 | Variable tuning antenna and mobile wireless device using same |
| CN101447604A (en) * | 2008-12-30 | 2009-06-03 | 清华大学 | Built-in antenna for digital video broadcast-handheld mobile terminal based on variable-capacitance matching circuit |
| WO2010107211A2 (en) * | 2009-03-16 | 2010-09-23 | 주식회사 이엠따블유 | Multi-band antenna device and a communications device employing the same |
| JP2011193362A (en) * | 2010-03-16 | 2011-09-29 | Murata Mfg Co Ltd | Antenna |
| CN103141031A (en) * | 2011-02-23 | 2013-06-05 | 株式会社村田制作所 | Impedance converting circuit and communication terminal apparatus |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105140644A (en) * | 2015-08-24 | 2015-12-09 | 联想(北京)有限公司 | Antenna and electronic equipment |
| CN107369912A (en) * | 2016-05-11 | 2017-11-21 | 中兴通讯股份有限公司 | Antenna and antenna tuning method |
| CN108288767A (en) * | 2017-12-29 | 2018-07-17 | 瑞声精密制造科技(常州)有限公司 | Antenna system and mobile terminal |
| CN108288767B (en) * | 2017-12-29 | 2021-06-01 | 瑞声精密制造科技(常州)有限公司 | Antenna system and mobile terminal |
| CN114584156A (en) * | 2020-12-02 | 2022-06-03 | 杭州海康威视数字技术股份有限公司 | Monitoring device and communication control method thereof |
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|---|---|
| CN104993235B (en) | 2019-01-15 |
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