CN103731176B - Communicator - Google Patents
Communicator Download PDFInfo
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- CN103731176B CN103731176B CN201210387097.7A CN201210387097A CN103731176B CN 103731176 B CN103731176 B CN 103731176B CN 201210387097 A CN201210387097 A CN 201210387097A CN 103731176 B CN103731176 B CN 103731176B
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Abstract
The present invention discloses a kind of communicator, comprises an earth element and an antenna element.Antenna element comprises one first Department of Radiation, one second Department of Radiation, and a control circuit.One end of first Department of Radiation is a feed side of antenna element, and the other end of the first Department of Radiation is an openend.Second Department of Radiation comprises at least one Part I and a Part II.One end of second Department of Radiation is the short-circuit end being coupled to earth element, and the other end of the second Department of Radiation is an openend.The length of the second Department of Radiation is greater than the length of the first Department of Radiation, and the second Department of Radiation around the first Department of Radiation openend and extend.Between the Part I that control circuit is coupled to the second Department of Radiation and Part II.Control circuit provides at least two different resistance values, makes antenna element operate in band multiplex.
Description
Technical field
The present invention relates to a kind of communicator, particularly relate to a kind of mobile communications device with adjustable antenna element.
Background technology
Flourish along with radio communication, wireless communication technology miscellaneous and product are constantly weeded out the old and bring forth the new, wherein again with the communication products that mobile communications device is the most popular.Compact and while multifunction in mobile communications device demand, can the space of containing antenna relatively more and more reduce.How in the limited Antenna Design space of mobile communications device, play that the most effectively to utilize be a very important problem.
Therefore, be necessary to propose a kind of adjustable communicator, wherein antenna element can operate in different communication bands when size constancy, to solve the day by day not enough problem in mobile communications device space.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of communicator and adjustable antenna element thereof.This antenna element comprises a control circuit, and it can provide at least two different resistance values.When this antenna element dimensions is constant, by this control circuit of adjustment, the resonance mode of this antenna element is made to contain different communication bands.Adjustable antenna element of the present invention can contain band multiplex, such as: WWAN/LTE frequency band.
In the preferred embodiment, the invention provides a kind of communicator, comprising: an earth element; And an antenna element, comprising: one first Department of Radiation, wherein one end of this first Department of Radiation is coupled to a signal source, and the other end of this first Department of Radiation is an openend; One second Department of Radiation, comprise at least one Part I and a Part II, wherein one end of this second Department of Radiation is the short-circuit end being coupled to this earth element, the other end of this second Department of Radiation is an openend, the length of this second Department of Radiation is greater than the length of this first Department of Radiation, and this second Department of Radiation around this first Department of Radiation this openend and extend; And a control circuit, between this Part I being coupled to this second Department of Radiation and this Part II, wherein this control circuit provides at least two different resistance values, makes this antenna element operate in band multiplex.
In the present invention, this control circuit is positioned among this second Department of Radiation, in more detail, is roughly positioned at surface current place at zero point (SurfaceCurrentNull) of a high order resonance mode of this second Department of Radiation.So when not affecting high order resonance mode, the frequency of the minimum resonance mode of this second Department of Radiation can be changed, to contain different frequency interval.In one embodiment, this control circuit comprises at least one capacity cell, and this capacity cell can provide at least two different capacitances.Such as, this capacity cell can be a variable-capacitance element.In another embodiment, this control circuit also comprises an inductance element, wherein this inductance element and this capacity cell coupled in series.In one embodiment, this control circuit comprises many branch roads in parallel, and described many branch roads comprise at least one capacity cell and at least one inductance element.Such as, one first branch road comprises this capacity cell, and one second branch road comprises this inductance element, and one the 3rd branch road is a short circuit branch.This Part I that this control circuit optionally couples this second Department of Radiation via the one of described many branch roads to this Part II of this second Department of Radiation.
In the aforementioned embodiment, this control circuit provides at least two different resistance values, to control the minimum resonance mode of this second Department of Radiation, makes the minimum resonance mode of this antenna element can contain different frequency interval.The change (comprising the change of capacitance or the change of inductance value) of this resistance value, the surface current on this second Department of Radiation can be caused to produce phase place change, make this second Department of Radiation can produce resonance at different frequency, thus excite different resonance mode to contain multiple frequency interval.
This antenna element can operate at least one first frequency band and one second frequency band, and wherein the frequency of this first frequency band is lower than the frequency of this second frequency band.This first frequency band controlled by this control circuit, makes this first frequency band can contain different frequency interval.In the preferred embodiment, this first frequency band can be contained about between a frequency separation of 700MHz to 960MHz, and this second frequency band can be contained about between a frequency separation of 1710MHz to 2690MHz.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the communicator described in display according to a first embodiment of the present invention;
Fig. 2 be the described according to a first embodiment of the present invention communicator of display return loss figure;
Fig. 3 is the schematic diagram of the communicator described in display according to a second embodiment of the present invention;
Fig. 4 is the schematic diagram of the communicator described in display according to a third embodiment of the present invention;
Fig. 5 is the schematic diagram of the communicator described in display according to a fourth embodiment of the present invention;
Fig. 6 is the schematic diagram of the communicator described in display according to a fifth embodiment of the present invention.
Description of reference numerals in above-mentioned accompanying drawing is as follows:
100,300,400,500,600 ~ communicator;
10 ~ earth element; 11,31,51 ~ antenna element;
12 ~ the first Departments of Radiation; The feed side of 121 ~ antenna element;
The openend of 122 ~ the first Departments of Radiation;
13,33,53 ~ the second Departments of Radiation;
131, the short-circuit end of 331,531 ~ the second Departments of Radiation;
1310, the Part I of 3310,5310 ~ the second Departments of Radiation;
132, the openend of 332,532 ~ the second Departments of Radiation;
1320, the Part II of 3320,5320 ~ the second Departments of Radiation;
14,34,44,54,64 ~ control circuit;
141,341,441,541,641 ~ capacity cell;
142,342,442,642 ~ inductance element;
15 ~ signal source; 21 ~ the first frequency bands;
211 ~ first frequency is interval; 212 ~ second frequency is interval;
213 ~ three frequency separation; 22 ~ the second frequency bands;
The Part III of 3330 ~ the second Departments of Radiation;
601,602, the branch road of 603 ~ control circuit;
6431,6432,6433 ~ switch
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, cited below particularly go out specific embodiments of the invention, and coordinate accompanying drawing, be described in detail below.
Fig. 1 is the schematic diagram of the communicator 100 described in display according to a first embodiment of the present invention.Communicator 100 can be a mobile phone, a panel computer, or a notebook computer.As shown in Figure 1, communicator 100 comprises earth element 10 and an antenna element 11.Antenna element 11 comprises one first Department of Radiation 12,1 second Department of Radiation 13, and a control circuit 14.One end of first Department of Radiation 12 is the feed side 121 being coupled to a signal source 15, and the other end of the first Department of Radiation 12 is an openend 122.Second Department of Radiation 13 comprises Part I 1310 and a Part II 1320.One end of second Department of Radiation 13 is the other end of short-circuit end 131, second Department of Radiation 13 being coupled to earth element 10 is an openend 132.The length of the second Department of Radiation 13 is greater than the length of the first Department of Radiation 12, and the second Department of Radiation 13 around the first Department of Radiation openend 122 and extend.Between the Part I 1310 that control circuit 14 is coupled to the second Department of Radiation 13 and Part II 1320.Control circuit 14 can provide at least two different resistance values, makes antenna element 11 operate in band multiplex.Control circuit 14 is roughly positioned at a surface current place at zero point of a high order resonance mode of the second Department of Radiation 13.In certain embodiments, control circuit 14 comprises at least one capacity cell 141, and it can provide at least two different capacitances.Capacity cell 141 can be a variable capacitor.In certain embodiments, control circuit 14 also comprises at least one inductance element 142, wherein capacity cell 141 and inductance element 142 coupled in series, effectively to shorten the resonant length of the second Department of Radiation 13.Inductance element 142 can be a chip inducer.It should be noted that communicator 100 also can comprise other necessary elements, such as: a processor, a contact panel, a battery, and a shell (not shown).
Fig. 2 be the described according to a first embodiment of the present invention communicator 100 of display return loss (ReturnLoss) figure.In certain embodiments, the component size of communicator 100 and parameter are as what follows.The length of earth element 10 is about 103mm, and width is about 60mm.The length of antenna element 11 is about 35mm, and width is about 7mm, is highly about 3mm (volume of antenna element 11 is only about 0.74cm3).The length of the first Department of Radiation 12 is about 32mm.The length of the second Department of Radiation 13 is about 60mm.The inductance value of inductance element 142 is 10nH.Capacity cell 141 is a variable capacitor, and it provides at least two different capacitances, and such as: one first capacitance is about 3pF, one second capacitance is about 5pF, and one the 3rd capacitance is about 22pF.In fig. 2 many return loss curve and correspond to different capacitance.As shown in Figure 2, antenna element 11 operates in one first frequency band 21 and one second frequency band 22.The frequency of the first frequency band 21 is lower than the frequency of the second frequency band 22.First frequency band 21 controlled by control circuit 14, makes the first frequency band 21 contain a second frequency interval 212, first frequency interval 211, and one the 3rd frequency separation 213.First frequency interval 211 corresponds to this first capacitance, and roughly contains GSM900 frequency band.Second frequency interval 212 corresponds to this second capacitance, and roughly contains GSM850 frequency band.3rd frequency separation 213 corresponds to the 3rd capacitance, and roughly contains LTE700 frequency band.In other words, switch by between three the different capacitances provided at capacity cell 141, the first frequency band 21 of antenna element 11 can be contained about between different frequency interval or the different mobile communication frequency band of 700MHz to 960MHz.In addition, second frequency band 22 of antenna element 11 formed primarily of a resonance mode of the first Department of Radiation 12 and a high order resonance mode of the second Department of Radiation 13, and can contain about between a frequency separation of 1710MHz to 2690MHz, or contain five operations frequently of GSM1800/1900/UMTS/LTE2300/2500 (about between 1710MHz to 2690MHz).
Fig. 3 is the schematic diagram of the communicator 300 described in display according to a second embodiment of the present invention.In a second embodiment, the control circuit 34 of communicator 300 comprises capacity cell 341 and an inductance element 342, and the second Department of Radiation 33 comprises Part I 3310, Part II 3320, and a Part III 3330.Capacity cell 341 and inductance element 342 are via Part III 3330 coupled in series of the second Department of Radiation 33.In addition, between control circuit 34 Part I 3310 that is coupled to the second Department of Radiation 33 and Part II 3320.All the other features of the communicator 300 of the second embodiment are all identical with the first embodiment, and therefore these embodiments all can have similar operating effect.
Fig. 4 is the schematic diagram of the communicator 400 described in display according to a third embodiment of the present invention.In the third embodiment, the control circuit 44 of communicator 400 comprises inductance element 442 and a capacity cell 441.Compare with the first embodiment, capacity cell 441 is exchanged with the position of inductance element 442.All the other features of the communicator 400 of the 3rd embodiment are all identical with the first embodiment, and therefore these embodiments all can have similar operating effect.
Fig. 5 is the schematic diagram of the communicator 500 described in display according to a fourth embodiment of the present invention.In the fourth embodiment, the control circuit 54 of communicator 500 only comprises a capacity cell 541.Control circuit 54 does not comprise any inductance element.Compare with the first embodiment, communicator 500 uses the second longer Department of Radiation 53 to produce a similar low-frequency band.All the other features of the communicator 500 of the 4th embodiment are all identical with the first embodiment, and therefore these embodiments all can have similar operating effect.
Fig. 6 is the schematic diagram of the communicator 600 described in display according to a fifth embodiment of the present invention.In the 5th embodiment, the control circuit 64 of communicator 600 comprises many branch roads 601,602,603 in parallel.Branch road 601 comprises at least one capacity cell 641 and a switch 6431.Branch road 602 comprises a switch 6433.Branch road 603 comprises at least one inductance element 642 and a switch 6432.By control switch 6431,6432,6433, control circuit 64 optionally couples the Part II 1320 of Part I 1310 via one to the second Department of Radiation 13 of described many branch roads 601,602,603 of the second Department of Radiation 13.When switch 6431 conducting, and switch 6432,6433 not conducting time, the Part I 1310 of the second Department of Radiation 13 is coupled to the Part II 1320 of the second Department of Radiation 13 via capacity cell 641.When switch 6432 conducting, and switch 6431,6433 not conducting time, the Part I 1310 of the second Department of Radiation 13 is coupled to the Part II 1320 of the second Department of Radiation 13 via inductance element 642.When switch 6433 conducting, and switch 6431,6432 not conducting time, the Part I 1310 of the second Department of Radiation 13 is directly coupled to the Part II 1320 of the second Department of Radiation 13.As mentioned above, control circuit 64 can provide at least three different resistance values.All the other features of the communicator 600 of the 5th embodiment are all identical with the first embodiment, and therefore these embodiments all can have similar operating effect.
Ordinal number in this specification and claim, such as " first ", " second ", " the 3rd " etc., do not have the precedence relationship in order each other, it only has the different elements of same name for indicating differentiation two.
Though the present invention discloses as above with preferred embodiment; so itself and be not used to limit scope of the present invention; any those familiar with ordinary skill in the art; without departing from the spirit and scope of the present invention; when doing a little change and retouching, the scope that therefore protection scope of the present invention ought define depending on appended claim is as the criterion.
Claims (9)
1. a communicator, comprising:
One earth element; And
One antenna element, comprising:
One first Department of Radiation, wherein one end of this first Department of Radiation is coupled to a signal source, and the other end of this first Department of Radiation is an openend;
One second Department of Radiation, comprise at least one Part I and a Part II, wherein one end of this second Department of Radiation is the short-circuit end being coupled to this earth element, the other end of this second Department of Radiation is an openend, the length of this second Department of Radiation is greater than the length of this first Department of Radiation, and this second Department of Radiation around this first Department of Radiation this openend and extend; And
One control circuit, between this Part I being coupled to this second Department of Radiation and this Part II, wherein this control circuit provides at least two different resistance values, makes this antenna element operate in band multiplex;
Wherein this control circuit is roughly positioned at a surface current place at zero point of a high order resonance mode of this second Department of Radiation.
2. communicator as claimed in claim 1, wherein this control circuit comprises at least one capacity cell, and this capacity cell provides at least two different capacitances.
3. communicator as claimed in claim 2, wherein this control circuit also comprises an inductance element, this inductance element and this capacity cell coupled in series.
4. communicator as claimed in claim 3, wherein this second Department of Radiation also comprises a Part III, and this capacity cell and this inductance element are via this Part III coupled in series of this second Department of Radiation.
5. communicator as claimed in claim 2, wherein this capacity cell is a variable capacitor.
6. communicator as claimed in claim 1, wherein this control circuit comprises many branch roads in parallel, described many branch roads comprise at least one capacity cell and at least one inductance element, wherein this control circuit this Part I of optionally coupling this second Department of Radiation via the one of described many branch roads to this Part II of this second Department of Radiation.
7. communicator as claimed in claim 1, wherein this antenna element operates at least one first frequency band and one second frequency band, and the frequency of this first frequency band is lower than the frequency of this second frequency band, and wherein this first frequency band controlled by this control circuit, this first frequency band is made to contain different frequency interval.
8. communicator as claimed in claim 7, wherein this first frequency band contains the frequency separation between 700MHz to 960MHz.
9. communicator as claimed in claim 7, wherein this second frequency band contains the frequency separation between 1710MHz to 2690MHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210387097.7A CN103731176B (en) | 2012-10-12 | 2012-10-12 | Communicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210387097.7A CN103731176B (en) | 2012-10-12 | 2012-10-12 | Communicator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103731176A CN103731176A (en) | 2014-04-16 |
| CN103731176B true CN103731176B (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210387097.7A Active CN103731176B (en) | 2012-10-12 | 2012-10-12 | Communicator |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3499644B1 (en) * | 2014-11-18 | 2022-05-18 | CommScope Technologies LLC | Cloaked low band elements for multiband radiating arrays |
| CN108475843A (en) * | 2016-02-19 | 2018-08-31 | 惠普发展公司，有限责任合伙企业 | Antenna and cover |
| CN106098988A (en) * | 2016-06-30 | 2016-11-09 | 维沃移动通信有限公司 | A kind of antenna assembly and mobile terminal |
| CN110350309B (en) * | 2018-04-03 | 2020-09-25 | 启碁科技股份有限公司 | Antenna structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1843432B1 (en) * | 2005-01-27 | 2015-08-12 | Murata Manufacturing Co., Ltd. | Antenna and wireless communication device |
| CN101496224B (en) * | 2006-07-28 | 2012-12-12 | 株式会社村田制作所 | Antenna device and radio communication device |
| TWI451631B (en) * | 2010-07-02 | 2014-09-01 | Ind Tech Res Inst | Multiband antenna and method for an antenna to be capable of multiband operation |
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| CN103731176A (en) | 2014-04-16 |
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