CN101106209A - Antenna structure for matching antenna size using resonance match circuit - Google Patents
Antenna structure for matching antenna size using resonance match circuit Download PDFInfo
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- CN101106209A CN101106209A CNA2007101056396A CN200710105639A CN101106209A CN 101106209 A CN101106209 A CN 101106209A CN A2007101056396 A CNA2007101056396 A CN A2007101056396A CN 200710105639 A CN200710105639 A CN 200710105639A CN 101106209 A CN101106209 A CN 101106209A
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Abstract
The invention discloses an antenna structure to match aerial dimension using resonance matching circuit, comprising an antenna module for receiving wireless signal with a signal feedthrough terminal; a resonance matching circuit with an aerial connecting end and a connecting end of feedthrough line, wherein the said aerial connecting end is connected with the signal feedthrough terminal of the antenna module. The said resonance matching circuit has a preset resonance frequency to make the dimension of the antenna module response to the frequency range of the wireless signal based on the preset frequency when the antenna module receives the wireless signal. The antenna structure also comprises an aerial feedthrough line connected with the connecting end of feedthrough line to transfer the wireless signal through the resonance matching circuit.
Description
Technical field
The present invention is about the antenna technology in a kind of wireless transmission, particularly about a kind of antenna structure with resonance match circuit coupling antenna size.
Background technology
Existing antenna is used for transmitting and receiving the critical components of radio magnetic wave in wireless tech (communication, transfer of data etc.), it becomes electromagnetic wave with the electric current that reflector produces with voltage transition, aloft propagate with radiation mode then.And antenna also can be tackled electromagnetic wave, and it is gone back to electric current and voltage, handles on receiver then.So whether the electrical characteristic of antenna well is enough to influence the quality of wireless tech, and is the reception of wireless telecommunications, transmission etc. and the pointer of launch mass quality.
And electromagnetic generation is the change procedure in electric field and magnetic field basically, and energy is transmitted in the space in the mode of ripple.And the existence of antenna provides the environment of electric field change, and its how much external forms have determined the space that electric field may vibrate.Therefore, antenna all need have specific geometry external form to reach the size that resonates with electromagnetic wave, and the antenna that only reaches resonant size just can reach the optimization of signal feed-in.
See also Fig. 1, show the stereogram that is arranged at existing antenna in the electronic installation.As shown in the figure, an electronic installation 100 has a housing 1, and the inner space of this housing 1 is provided with an antenna module 2 and an antenna feed lambda line 3.This antenna feed lambda line 3 is connected in a feed side 21 of this antenna module 2, and connects the wireless signal module (not shown) of this electronic installation 100, to transmit the wireless signal that this antenna module 2 is transmitted/receives.
See also Fig. 2, show the frequency response curve of existing antenna.As shown in the figure, its longitudinal axis is represented the signal strength signal intensity S of wireless signal that this antenna module 2 transmits/receives, and it is bigger more to go up this signal strength signal intensity of expression from initial point; Its transverse axis is represented the frequency f of this antenna module 2 and electromagnetic wave resonance, heals high from the righter frequency of this resonance of representing of initial point.By this graphic shown in shown in the frequency response curve A as can be known, one has the antenna module 2 of specific dimensions, with the resonance of the electromagnetic wave of a characteristic frequency f1, and the antenna module 2 with this specific dimensions is only arranged, could reach resonance with the electromagnetic wave of this characteristic frequency f1 and transmit the wireless signal of this frequency.
When the electromagnetic wave of this antenna module 2 and this characteristic frequency f1 reaches resonance, the impedance minimum of this antenna module 2, at this moment, the signal strength signal intensity maximum of wireless signal that this antenna module 2 transmits/receives, and transmittability is the strongest.This antenna module 2 still can reach resonance with the electromagnetic wave of other characteristic frequency f2, yet the impedance of this moment is bigger, and the signal strength signal intensity of this antenna module 2 is less, thus the transmittability of signal a little less than.
See also Fig. 3, show the size of antenna and the graph of relation of its resonance frequency.As shown in the figure, its longitudinal axis is represented the size L of this antenna module 2, and it is bigger more to go up the expression size from initial point; Transverse axis is represented the frequency f of this antenna module 2 and electromagnetic wave resonance, heals high from the righter frequency of this resonance of representing of initial point.By the corresponding curve B with resonance frequency of the antenna size shown in the figure as can be known, one is of a size of the resonance frequency fA of the antenna of LA, promptly big and be the resonance frequency fB of the antenna of LB greater than a size, and bigger and be the resonance frequency fC of the antenna of LC greater than a size.This that is, resonant size is bigger, resonance frequency is littler.
Comprehensive background technology is described, when the wireless signal of a certain special frequency channel is sent/receives in an electronic installation tendency to develop, must use the antenna with corresponding resonant size, otherwise promptly can influence the transmittability of signal greatly.Yet corresponding resonant size can be subject to now the strict demand for the sizes of electronic devices size constantly, and can't have enough spaces for larger-size antenna configurations.
And, be used in the electronic installation antenna at present in order to transmission/reception wireless signal, because fixing sizes of tool all, so only can receive the wireless signal of single predetermined band.And an electronic installation tendency to develop is when sending/receiving the wireless signal of several predetermined bands, and only having increases antenna one that several sizes sent/received predetermined band corresponding to these several tendencies to develop on the way.
Summary of the invention
In view of above-mentioned purpose, the invention provides a kind of antenna structure with resonance match circuit coupling antenna size.
For achieving the above object, the present invention has adopted following technological means: a kind of antenna structure with resonance match circuit coupling antenna size, be connected in antenna module with a resonance match circuit, and this resonance match circuit has a default resonance frequency, make this antenna module when receiving this wireless signal, make the frequency range of the size match of antenna module in response to this wireless signal according to the resonance frequency that should preset.
Therefore, main purpose of the present invention promptly provides a kind of antenna structure with resonance match circuit coupling antenna size, by an easy circuit and an antenna match, to shorten the resonant size of antenna.
Another object of the present invention promptly provides a kind of antenna with resonance match circuit coupling, in order to the wireless signal of several predetermined bands of transmission/reception.
Compared to prior art, antenna structure with resonance match circuit coupling antenna size of the present invention, behind a resonance match circuit coupling antenna module, the electromagnetic wave of this antenna module and a special frequency channel is reached when resonating, this antenna module promptly can be varying sized and with the electromagnetic wave resonance of a characteristic frequency, and then the wireless signal of this frequency of transmission/reception (frequency range).And the antenna module after resonance match circuit coupling has the function with the electromagnetic wave resonance of several frequency ranges.
Specific embodiment of the present invention will and attachedly be graphic and be further described by following embodiment.
Description of drawings
Fig. 1 is for showing the stereogram that is arranged at existing antenna in the electronic installation
Fig. 2 is for showing the frequency response curve of existing antenna
Fig. 3 is the corresponding curve chart of demonstration antenna size with its resonance frequency
Fig. 4 is for showing the stereogram that mates the antenna structure of antenna size with the resonance match circuit of the present invention
Fig. 5 is for showing the schematic diagram that mates the antenna structure of antenna size with the resonance match circuit of the present invention
Fig. 6 is for showing the schematic diagram of equivalent resonance match circuit
Fig. 7 is for showing the frequency response curve that mates the antenna structure of antenna size with the resonance match circuit of the present invention
Embodiment
See also Fig. 4, show the antenna structure stereogram with resonance match circuit coupling antenna size of the present invention.As shown in the figure, an electronic installation 100a has a housing 1a, and the inner space of this housing 1a is provided with an antenna module 2a, an antenna feed lambda line 3a and a resonance match circuit 4.This antenna feed lambda line 3a is connected in this resonance match circuit 4, and connects the wireless transport module (not shown) of this electronic installation 100a, and this resonance match circuit is connected in this antenna module 2a, to transmit the wireless signal that this antenna module 2a is transmitted/receives.
See also Fig. 5, show the antenna structure view with resonance match circuit coupling antenna size of the present invention.As shown in the figure, this antenna module 2a has a signal feed side 21a, and this resonance match circuit 4 has an antenna connection terminal 41 and a feed-in line link 42, wherein, this antenna connection terminal 41 is in order to connecting this signal feed side 21a, and this feed-in line link 42 is in order to connect this antenna feed lambda line 3a.
This resonance match circuit 4 has default resonance frequency, makes this antenna module 2a when receiving the wireless signal of special frequency channel, makes this antenna module 2a match responding with a specific dimensions LD in the frequency range of this wireless signal according to the resonance frequency that should preset.
See also Fig. 6, show schematic equivalent circuit with the equivalence of resonance match circuit.As shown in the figure, the antenna connection terminal 41 of this resonance match circuit 4 is in order to connecting the signal feed side 21a of this antenna module 2, and its feed-in line link 42 is in order to connect this antenna feed lambda line 3a.And, this resonance match circuit 4 is made up of an Inductive component 43 capacitance components 44 in parallel, and resonance frequency value that should equivalence circuit 43 can be got radical sign by the product of the capacitance of the inductance value of this Inductive component 43 and this capacitance component 44, and multiply by the gained reciprocal behind 2 π.
See also Fig. 7, show the frequency response curve that mates the antenna structure of antenna size with the resonance match circuit of the present invention.As shown in the figure, its longitudinal axis represents that this antenna module 2a transmits/receive the signal strength signal intensity S of wireless signal, and it is bigger more to go up this signal strength signal intensity of expression from initial point; Transverse axis is represented the frequency f of this antenna module 2a and electromagnetic wave resonance, and is higher from the frequency of righter this resonance of expression of initial point.Frequency response curve curve C and D, E represent the original frequency response curve of this antenna module 2a respectively and with the frequency response curve after this resonance match circuit coupling 4.
By the frequency response curve C of this antenna module 2a as can be known, the resonance of the electromagnetic wave of this antenna module 2a and frequency f 3, and the wireless signal signal strength signal intensity maximum that it transmits/receives.And by the frequency response curve D of this antenna module 2a after these resonance match circuit 4 couplings as can be known, this antenna module 2a is after these resonance match circuit 4 couplings, promptly can increase this antenna module 2a size and with the resonance of the electromagnetic wave of frequency f 4, and then the wireless signal of this frequency f 4 of transmission/reception.
In addition, this antenna module 2a can mate with the resonance match circuit 4a with another resonance frequency, and by the frequency response curve E of this antenna module 2a after coupling as can be known, this antenna module 2a is after this resonance match circuit 4a coupling, promptly can shorten this antenna module 2a size and with the resonance of the electromagnetic wave of frequency f 5, and then the wireless signal of this frequency f 5 of transmission/reception.
By above embodiment explanation, antenna structure with resonance match circuit coupling antenna size of the present invention, behind a resonance match circuit coupling antenna module, the electromagnetic wave of this antenna module and a special frequency channel is reached when resonating, this antenna module promptly can be varying sized and with the electromagnetic wave resonance of a characteristic frequency, and then the wireless signal of this frequency of transmission/reception (frequency range).And the antenna module after resonance match circuit coupling has the function with the electromagnetic wave resonance of several frequency ranges.
By the above-mentioned embodiment of the invention as can be known, the value on the true tool industry of the present invention.Only above embodiment explanation only is preferred embodiment explanation of the present invention, all habit in this operator when doing other all improvement and variation according to the above embodiment of the present invention explanation.Yet all improvement and variation that these are done according to the embodiment of the invention are in the claim that still belongs to invention spirit of the present invention and define.
Claims (8)
1. antenna structure with resonance match circuit coupling antenna size is characterized in that this antenna structure comprises:
One antenna module, in order to the transmitting/receiving wireless signal, this antenna module has a signal feed side;
One resonance match circuit, have an antenna connection terminal and a feed-in line link, wherein this antenna connection terminal is connected in the signal feed side of this antenna module, this resonance match circuit has a default resonance frequency, make this antenna module when receiving this wireless signal, make the frequency range of the size match of antenna module in response to this wireless signal according to the resonance frequency that should preset;
One antenna feed lambda line is connected in this feed-in line link, in order to transmit the wireless signal of this process resonance match circuit.
2. the antenna structure with resonance match circuit coupling antenna size according to claim 1 is characterized in that this antenna module is arranged in the electronic installation.
3. the antenna structure with resonance match circuit coupling antenna size according to claim 2 is characterized in that this electronic installation is a notebook.
4. the antenna structure with resonance match circuit coupling antenna size according to claim 1 is characterized in that, this resonance match circuit is with an Inductive component and a capacitance component is parallel with one another combines.
5. antenna structure with resonance match circuit coupling antenna size, this antenna structure includes an antenna module, in order to the transmitting/receiving wireless signal, it is characterized in that, this antenna structure includes a resonance match circuit with a default resonance frequency, this resonance match circuit is coupled to this antenna module, this resonance match circuit makes this antenna module when this wireless signal of transmitting-receiving, makes the frequency range of the size match of this antenna module in response to this wireless signal according to the default resonance frequency of this resonance match circuit.
6. the antenna structure with resonance match circuit coupling antenna size according to claim 5 is characterized in that this antenna structure is arranged in the electronic installation.
7. the antenna structure with resonance match circuit coupling antenna size according to claim 6 is characterized in that this electronic installation is a notebook.
8. the antenna structure with resonance match circuit coupling antenna size according to claim 5 is characterized in that, this resonance match circuit is with an Inductive component and a capacitance component is parallel with one another combines.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/474,935 US20070236399A1 (en) | 2006-04-07 | 2006-06-27 | Antenna device with antenna element matched by resonance circuit |
| US11/474935 | 2006-06-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101106209A true CN101106209A (en) | 2008-01-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101056396A Pending CN101106209A (en) | 2006-06-27 | 2007-05-01 | Antenna structure for matching antenna size using resonance match circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101106209A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105789831A (en) * | 2016-04-11 | 2016-07-20 | 深圳市万普拉斯科技有限公司 | Mobile terminal and antenna structure thereof |
| WO2017076031A1 (en) * | 2015-11-06 | 2017-05-11 | 乐视控股（北京）有限公司 | Antenna manufacturing method, and antenna system |
| CN107112634A (en) * | 2014-11-14 | 2017-08-29 | 株式会社村田制作所 | Antenna assembly and communicator |
-
2007
- 2007-05-01 CN CNA2007101056396A patent/CN101106209A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107112634A (en) * | 2014-11-14 | 2017-08-29 | 株式会社村田制作所 | Antenna assembly and communicator |
| WO2017076031A1 (en) * | 2015-11-06 | 2017-05-11 | 乐视控股（北京）有限公司 | Antenna manufacturing method, and antenna system |
| CN105789831A (en) * | 2016-04-11 | 2016-07-20 | 深圳市万普拉斯科技有限公司 | Mobile terminal and antenna structure thereof |
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Open date: 20080116 |