CN103367874B - Communicator - Google Patents

Communicator Download PDF

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Publication number
CN103367874B
CN103367874B CN201210104503.4A CN201210104503A CN103367874B CN 103367874 B CN103367874 B CN 103367874B CN 201210104503 A CN201210104503 A CN 201210104503A CN 103367874 B CN103367874 B CN 103367874B
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China
Prior art keywords
department
radiation
frequency band
branch road
communicator
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CN201210104503.4A
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Chinese (zh)
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CN103367874A (en
Inventor
翁金辂
陈淑娟
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Acer Inc
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Acer Inc
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Abstract

A kind of communicator, including an earth element, an antenna element and a reconfigurable circuit element group.Antenna element includes: the first Department of Radiation, and its one end is the feed side of antenna element, and its other end is opening;Second Department of Radiation, its one end is short-circuit end, is electrically coupled to earth element, its other end is an opening, the length of the second Department of Radiation is more than the length of the first Department of Radiation, and extends around the opening of the first Department of Radiation, and the second Department of Radiation includes Part I and Part II;One reconfigurable circuit element group, is coupled between Part I and Part II, and reconfigurable circuit element group has at least two branch road, and reconfigurable circuit element group selection ground turns on or is not turned on this branch road so that this antenna element operates in band multiplex.The communicator of the present invention can operate in different communication bands in the case of antenna element is constant, solves the problem that mobile communications device space is day by day not enough.

Description

Communicator
Technical field
The present invention relates to a kind of communicator, a kind of mobile communications device with antenna element of can recombinating.
Background technology
Flourish along with radio communication, wireless communication technology miscellaneous is constantly weeded out the old and bring forth the new with product, is the most popular communication products with mobile communications device the most again.While and multifunction compact in mobile communications device demand, the space that can accommodate antenna the most increasingly reduces.How in the limited Antenna Design space of mobile communications device, playing maximally effective utilization is a critically important problem.
Therefore, it is necessary to propose a kind of adjustable communicator, wherein antenna element can operate in different communication bands in the case of size constancy, the problem day by day not enough to solve mobile communications device space.
Summary of the invention
It is an object of the invention to provide a kind of communicator and antenna element of can recombinating thereof, antenna element of wherein can recombinating includes an antenna element and a reconfigurable circuit element group.By adjusting reconfigurable circuit element group, the resonance path of antenna element in the case of antenna element dimensions is constant, can be changed, make the resonance mode of antenna element contain different communication bands.The recombinated antenna element of the present invention can contain the multi-band operation of WWAN/LTE frequency band.
In one embodiment, the present invention provides a kind of communicator, including: an earth element;One antenna element, this antenna element includes: one first Department of Radiation, one end of this first Department of Radiation is the feed side of this antenna element, and the other end of this first Department of Radiation is opening;And one second Department of Radiation, including a Part I and a Part II, one end of this second Department of Radiation is short-circuit end, it is coupled to this earth element, and the other end of this second Department of Radiation is opening, the length of this second Department of Radiation is more than the length of this first Department of Radiation, and this second Department of Radiation extends around this opening of this first Department of Radiation;And a reconfigurable circuit element group, it is coupled between this Part I and this Part II, this reconfigurable circuit element group has at least two branch roads, and this reconfigurable circuit element group selection ground turns on (Close) or is not turned on (Open) described branch road so that this antenna element operates in band multiplex.
In the present invention, the reconfigurable circuit element group in antenna element is positioned on the second Department of Radiation, and has at least two branch road.In one embodiment, the first branch road has an inductance element, and the second branch road has a switching device, can turn on (Close) or be not turned on (Open) second branch road.When the second branch road conducting, the resonance path of the second Department of Radiation is mainly via the second branch road;And when the second branch road is not turned on, the resonance path of the second Department of Radiation is mainly via the first branch road.Because the first branch road has an inductance element, the frequency of the minimum resonance mode of the second Department of Radiation therefore can be reduced.By switching the second shunt operations in conducting or open-circuit condition, the frequency of resonance mode that the second Department of Radiation produces can be changed, make antenna element operate in different frequency bands, reach the purpose of multi-band operation.
In one embodiment, the length of antenna element of can recombinating is about 35mm, and width is about 7mm, and height is about 3mm (volume about 0.74cm3).The recombinated antenna element of the present invention is operable in eight frequencies operation (LTE700/GSM850/900 tri-frequency band and GSM1800/1900/UMTS/LTE2300/2500 five frequency band) of WWAN/LTE.In a preferred embodiment, first Department of Radiation produces at least a resonance mode and is positioned at the high frequency band (about 1710MHz~2690MHz) of antenna element and at least contains a mobile band, and the second Department of Radiation then produces at least a resonance mode and is positioned at the low-frequency band (about 700MHz~960MHz) of antenna element and at least contains a mobile band.In addition, reconfigurable circuit element group is away from the opening of the second Department of Radiation and short-circuit end, and at the current zero of the high order resonance mode being located substantially at the second Department of Radiation (or at zero surface current), therefore the frequency of the minimum resonance mode of the second Department of Radiation can under not affecting high order resonance mode, be changed.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the first embodiment of the communicator of the present invention;
Fig. 2 A be in first embodiment of the invention when second branch road conducting time communicator return loss figure;
Fig. 2 B be in first embodiment of the invention when second branch road conducting time communicator antenna efficiency figure;
Fig. 3 A is the return loss figure of the communicator when the second branch road is not turned in first embodiment of the invention;
Fig. 3 B be in first embodiment of the invention when the second branch road is not turned on communication device antennas efficiency chart;
Fig. 4 is the schematic diagram of the second embodiment of the communicator of the present invention;
Fig. 5 is the schematic diagram of the 3rd embodiment of the communicator of the present invention.
[Main Reference Numerals explanation]
100,400,500~communicator;
10~earth element;
11~antenna element;
12~first Department of Radiation;
121~feed side;
122~first opening of Department of Radiation;
13~second Department of Radiation;
131~short-circuit end;
132~second opening of Department of Radiation;
1310~second first part of Department of Radiation;
1320~second Part II of Department of Radiation;
14,44,54~reconfigurable circuit element group;
141, the 441,541~first branch road;
142, the 442,542~first inductance element;
143, the 443,543~second branch road;
144, the 444,544~first switching device;
15~signal source;
21~first frequency band;
22~second frequency band;
211,221,311,322~antenna efficiency curve;
31~the 3rd frequency band;
32~the 4th frequency band of first embodiment;
445,545~second switching device;
546~second inductance element.
Detailed description of the invention
For the above-mentioned purpose of the present invention, feature and advantage can be become apparent, cited below particularly go out the present invention specific embodiment, and coordinate appended accompanying drawing, be described in detail below.
Fig. 1 is the schematic diagram of the first embodiment of the communicator 100 of the present invention.Communicator 100 includes: earth element 10, antenna element 11, and a reconfigurable circuit element group 14.Antenna element 11 includes one first Department of Radiation 12 and one second Department of Radiation 13.The feed side that one end is antenna element 11 121 of the first Department of Radiation 12, it is electrically coupled to a signal source 15, and the other end of the first Department of Radiation 12 is opening 122.Second Department of Radiation includes Part I 1310 and a Part II 1320.One end of second Department of Radiation 13 is short-circuit end 131, and it is electrically coupled to earth element 10, and the other end of the second Department of Radiation 13 is an opening 132.The length of the second Department of Radiation 13 is more than the length of the first Department of Radiation 12.Second Department of Radiation 13 extends around the opening 122 of the first Department of Radiation 12.Reconfigurable circuit element group 14 is electrically coupled between Part I 1310 and the Part II 1320 of the second Department of Radiation 13.Reconfigurable circuit element group 14 has at least two branch road, and optionally turns on or be not turned on described branch road to change the frequency of the resonance mode that the second Department of Radiation 13 produces so that antenna element 11 operates in band multiplex.In certain embodiments, reconfigurable circuit element group 14 according to a user input or decides whether to turn on described branch road according to control signal produced by a processor (not shown).It should be noted that reconfigurable circuit element group 14 is away from the opening 132 of the second Department of Radiation 13 and short-circuit end 131, and a current zero of the high order resonance mode being located substantially at the second Department of Radiation 13 (or at zero surface current).In the present embodiment, reconfigurable circuit element group 14 includes at least one first branch road 141 and one second branch road 143, wherein the first branch road 141 has one first inductance element 142 (such as: chip inducer), and the second branch road 143 has one first switching device 144, in order to turn on or to be not turned on the second branch road 143.
Fig. 2 A is the return loss figure of the communicator 100 when the second branch road 143 turns in first embodiment of the invention.When the first switching device 144 turns on (Closed) second branch road 143, antenna element 11 operates in one first frequency band 21 and one second frequency band 22.The minimum resonance mode that first frequency band 21 is mainly produced by the second Department of Radiation 13 is formed, and a resonance mode that the high order resonance mode that the second frequency band 22 is mainly produced by the second Department of Radiation 13 and the first Department of Radiation 12 produce is formed.First frequency band 21 and the second frequency band 22 at least contain a mobile band, or contain GSM850/900 frequency band and GSM1800/1900/UMTS frequency band.
Fig. 2 B be in first embodiment of the invention when the second branch road 143 turns on the antenna efficiency figure of communicator 100.Antenna efficiency curve 211 is the antenna element 11 antenna efficiency when operating in GSM850/900 frequency band, and the antenna efficiency that antenna efficiency curve 221 is antenna element 11 when operating in GSM1800/1900/UMTS frequency band.No matter the communicator of the present invention 100 antenna element 11 operates in GSM850/900 frequency band or GSM1800/1900/UMTS frequency band all has good antenna efficiency (radiation efficiency S parameter accounted for).
Fig. 3 A is the return loss figure of the communicator 100 when the second branch road 143 is not turned in first embodiment of the invention.When the first switching device 144 is not turned on (Open) second branch road 143, antenna element 11 operates in one the 3rd frequency band 31 and one the 4th frequency band 32.The minimum resonance mode that 3rd frequency band 31 is mainly produced by the second Department of Radiation 13 is formed, and a resonance mode that the high order resonance mode that the 4th frequency band 32 is mainly produced by the second Department of Radiation 13 and the first Department of Radiation 12 produce is formed.3rd frequency band 31 and the 4th frequency band 32 at least contain a mobile band, or contain LTE700 frequency band and LTE2300/2500 frequency band.
Fig. 3 B be in first embodiment of the invention when the second branch road 143 is not turned on communicator 100 antenna efficiency figure.Antenna efficiency curve 311 is the antenna element 11 antenna efficiency when operating in LTE700 frequency band, and the antenna efficiency that antenna efficiency curve 321 is antenna element 11 when operating in LTE2300/2500 frequency band.No matter the communicator of the present invention 100 antenna element 11 operates in LTE700 frequency band or LTE2300/2500 frequency band all has good antenna efficiency (radiation efficiency S parameter accounted for).
Fig. 4 is the schematic diagram of the second embodiment of the communicator 400 of the present invention.In the present embodiment, two switching devices are arranged respectively in two different branch of reconfigurable circuit element group 44, to turn on or to be not turned on described branch road, switch different operating frequency band.First branch road 441 of reconfigurable circuit element group 44 has one second switching device 445 and one first inductance element 442 of coupled in series, and the second branch road 443 of reconfigurable circuit element group 44 has one first switching device 444.In other embodiments, the second switching device 445 can be exchanged with the position of the first inductance element 442.When the second switching device 445 turns on and the first switching device 444 is not turned on, the first inductance element 442 is electrically coupled between Part I 1310 and the Part II 1320 of the second Department of Radiation 13.Otherwise, when the second switching device 445 is not turned on and the first switching device 444 turns on, Part I 1310 is electrically coupled to Part II 1320 by the second branch road 443.It should be noted that in the present embodiment, both the first switching device 444 and the second switching device 445 at least one is conducting state.The remainder of the communicator 400 of the second embodiment is identical with the communicator 100 of first embodiment.Therefore, the second embodiment also can obtain effect similar to first embodiment, can contain the Multiband-operation of WWAN/LTE.
Fig. 5 is the schematic diagram of the 3rd embodiment of the communicator 500 of the present invention.In the present embodiment, the second branch road 543 of reconfigurable circuit element group 54 also has one second inductance element 546 (such as: chip inducer).This design can be by antenna element 11 more downsizing.First branch road 541 of reconfigurable circuit element group 54 has one second switching device 545 and one first inductance element 542 of coupled in series, and the second branch road 543 of reconfigurable circuit element group 54 has one second inductance element 546 and one first switching device 544 of coupled in series.In other embodiments, the position of the second switching device 545 and the first inductance element 542 can be exchanged, and the position of the second inductance element 546 and one first switching device 544 can also be exchanged.When the first switching device 544 turns on and the second switching device 545 is not turned on, the second inductance element 546 of the second branch road 543 is electrically coupled between Part I 1310 and the Part II 1320 of the second Department of Radiation 13.Otherwise, when the first switching device 544 is not turned on and the second switching device 545 turns on, the first inductance element 542 of the first branch road 541 is electrically coupled between Part I 1310 and the Part II 1320 of the second Department of Radiation 13.In a preferred embodiment, the first inductance element 542 and the second inductance element 546 have different inductance value.It should be noted that in the present embodiment, both the first switching device 544 and the second switching device 545 at least one is conducting state.The remainder of the communicator 500 of the 3rd embodiment is identical with the communicator 100 of first embodiment.Therefore, the 3rd embodiment also can obtain effect similar to first embodiment, can contain the Multiband-operation of WWAN/LTE.Comparing with first embodiment, the first inductance element 542 and the second inductance element 546 one of both should have the inductance value bigger than the first inductance element 142, and another one then should have the inductance value less than the first inductance element 142.
Though the present invention is open as above with preferred embodiment; so it is not limited to the scope of the present invention; any those of ordinary skill in the art; without departing from the spirit and scope of the present invention; when doing a little change and retouching, therefore protection scope of the present invention is when being defined in the range of standard depending on appended claim.

Claims (11)

1. a communicator, including:
One earth element;
One antenna element, this antenna element includes:
One first Department of Radiation, one end of this first Department of Radiation is the feed side of this antenna element, and the other end of this first Department of Radiation is opening;And
One second Department of Radiation, including a Part I and a Part II, one first end of this Part I is short-circuit end, it is coupled to this earth element, and one first end of this Part II is opening, the length of this second Department of Radiation is more than the length of this first Department of Radiation, and this second Department of Radiation extends around this opening of this first Department of Radiation;And
One reconfigurable circuit element group, it is coupled between one second end of this Part I and one second end of this Part II, this reconfigurable circuit element group has at least two branch roads, and this reconfigurable circuit element group selection ground turns on or is not turned on described branch road so that this antenna element operates in band multiplex;
Wherein this first Department of Radiation is a L-shaped, and this Part I of this second Department of Radiation is another L-shaped.
2. communicator as claimed in claim 1, wherein this reconfigurable circuit element group includes one first branch road and one second branch road, this first branch road has one first inductance element, and this second branch road has one first switching device in order to turn on or to be not turned on this second branch road.
3. communicator as claimed in claim 1, wherein this reconfigurable circuit element group is away from this opening of this second Department of Radiation and this short-circuit end, and is located substantially at a current zero of a high order resonance mode of this second Department of Radiation.
4. communicator as claimed in claim 2, wherein when this second branch road turns on, this antenna element operates in one first frequency band and one second frequency band.
5. communicator as claimed in claim 4, wherein this first frequency band and this second frequency band at least contain GSM850/900 frequency band and GSM1800/1900/UMTS frequency band.
6. communicator as claimed in claim 4, wherein when this second branch road is not turned on, this antenna element operates in one the 3rd frequency band and one the 4th frequency band.
7. communicator as claimed in claim 6, wherein the 3rd frequency band and the 4th frequency band at least contain LTE700 frequency band and LTE2300/2500 frequency band.
8. communicator as claimed in claim 6, wherein this first Department of Radiation produces at least a resonance mode and is positioned at this second frequency band or the 4th frequency band.
9. communicator as claimed in claim 6, wherein this second Department of Radiation produces at least a resonance mode and is positioned at this first frequency band or the 3rd frequency band.
10. communicator as claimed in claim 2, wherein this first branch road also has one second switching device to turn on or to be not turned on this first branch road, and this second switching device and this first inductance element coupled in series.
11. communicators as claimed in claim 2, wherein this second branch road also has one second inductance element, this second inductance element and this first switching device coupled in series.
CN201210104503.4A 2012-04-06 2012-04-06 Communicator Active CN103367874B (en)

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CN201210104503.4A CN103367874B (en) 2012-04-06 2012-04-06 Communicator

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CN103367874B true CN103367874B (en) 2016-08-03

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TWI557997B (en) 2013-10-02 2016-11-11 宏碁股份有限公司 Mobile communication device
CN104716427B (en) * 2013-12-17 2019-02-05 宏碁股份有限公司 Communication device
CN104733839A (en) * 2013-12-18 2015-06-24 宏碁股份有限公司 Communication device
CN104779443B (en) * 2014-01-09 2018-08-28 宏碁股份有限公司 Communication device
CN104836030B (en) * 2014-02-12 2019-01-22 宏碁股份有限公司 Mobile communications device
CN107579340B (en) * 2015-04-08 2022-01-25 Oppo广东移动通信有限公司 Antenna

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