CN104953234A - Handheld device - Google Patents
Handheld device Download PDFInfo
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- CN104953234A CN104953234A CN201410116070.3A CN201410116070A CN104953234A CN 104953234 A CN104953234 A CN 104953234A CN 201410116070 A CN201410116070 A CN 201410116070A CN 104953234 A CN104953234 A CN 104953234A
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- China
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- antenna element
- thread elements
- day kind
- handheld apparatus
- ground plane
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Abstract
The invention provides a handheld device which comprises a grounded surface, a first antenna element and a second antenna element. The grounded surface comprises a short side and a first long side which are adjacent, thereby forming a first corner. The first antenna element opposes the short side of the grounded surface. The second antenna element opposes the first long side of the grounded surface, and furthermore comprises a first radiating part. One end of the first radiating part is electrically connected with the first long side and is adjacent to the first corner. The handheld device adjusts the length of the equivalent grounded surface of the first antenna element through the second antenna element.
Description
Technical field
The invention relates to a kind of handheld apparatus, and relate to a kind of handheld apparatus with antenna element especially.
Background technology
Along with the fast development of wireless communication technology, handheld apparatus miscellaneous is constantly weeded out the old and bring forth the new.In addition, multi-functional handheld apparatus, such as: smart mobile phone, panel computer and notebook computer etc., also for people provide more convenient life.Along with the lightening development of handheld apparatus, the space in order to arrange antenna element in handheld apparatus is also relatively compressed, and then causes the characteristic of antenna element (such as, bandwidth of operation) to be affected.
In order to improve the bandwidth of operation of antenna element, prior art additionally arranges grounded metal sheet mostly, and grounded metal sheet is electrically connected to the ad-hoc location of system ground.In addition, prior art utilizes grounded metal sheet to adjust the equivalent ground plane length of antenna element, can increase in the bandwidth of operation of special frequency band to cause antenna element.But the mode that this kind additionally arranges grounded metal sheet can expend more hardware space, and then the development of restriction handheld apparatus on lightening.
Summary of the invention
The invention provides a kind of handheld apparatus, comprise along the first day kind of thread elements set by the minor face of ground plane and the first long limit and the second antenna element, and utilize the second antenna element to adjust the equivalent ground plane length of first day kind of thread elements.By this, the characteristic of first day kind of thread elements can be promoted, and contribute to the development of handheld apparatus on lightening.
Handheld apparatus of the present invention comprises ground plane, first day kind of thread elements and the second antenna element.Ground plane comprises adjacent minor face and the first long limit, to form the first corner.First day kind of thread elements is relative to the minor face of ground plane.Second antenna element is relative to the first long limit of ground plane, and the second antenna element comprises the first Department of Radiation.Wherein, one end of the first Department of Radiation is electrically connected the first long limit and contiguous first corner.In addition, handheld apparatus adjusts the equivalent ground plane length of first day kind of thread elements by the second antenna element.
In one embodiment of this invention, the first above-mentioned Department of Radiation and the length summation of minor face are in order to define the equivalent ground plane length of first day kind of thread elements.
Based on above-mentioned, handheld apparatus of the present invention comprises along the first day kind of thread elements set by the minor face of ground plane and the first long limit and the second antenna element, and the first corner that the contiguous minor face of the earth terminal of the second antenna element is crossing with the first long limit.In addition, handheld apparatus will adjust the equivalent ground plane length of first day kind of thread elements by the second antenna element.By this, the characteristic of first day kind of thread elements can be promoted, and contribute to the development of handheld apparatus on lightening.
For above-mentioned feature and advantage of the present invention can be become apparent, special embodiment below, and coordinate accompanying drawing to be described in detail below.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the handheld apparatus of one embodiment of the invention;
Fig. 2 be the first day kind of thread elements of one embodiment of the invention return loss schematic diagram;
Fig. 3 be second antenna element of one embodiment of the invention return loss schematic diagram;
Fig. 4 is the antenna efficiency schematic diagram of the first day kind of thread elements of one embodiment of the invention;
Fig. 5 is the schematic diagram of the handheld apparatus of another embodiment of the present invention;
Fig. 6 is the schematic diagram of the handheld apparatus of further embodiment of this invention.
Description of reference numerals:
100,500,600: handheld apparatus;
110: ground plane;
111: minor face;
112: the first long limits;
113: the second long limits;
101: the first corners;
102: the second corners;
120: first day kind of thread elements;
130,530: the second antenna elements;
131,531: the first Departments of Radiation;
132,612: feeding portion;
S11, S12, S61: signal source;
L11, L12, L52, L61: length;
210,220: return loss curve;
610: third antenna element;
611: the second Departments of Radiation.
Embodiment
Fig. 1 is the schematic diagram of the handheld apparatus of one embodiment of the invention.As shown in Figure 1, handheld apparatus 100 comprises ground plane 110, first day kind of thread elements 120 and the second antenna element 130.Wherein, ground plane 110 comprises minor face 111, first long limit 112 and the second long limit 113.In addition, minor face 111 is adjacent one another are and crossing with the first long limit 112, and the intersection on minor face 111 and the first long limit 112 forms the first corner 101.Similarly, minor face 111 is adjacent one another are and crossing with the second long limit 113, and the intersection on minor face 111 and the second long limit 113 forms the second corner 102.
In configuration, ground plane 110, first day kind of thread elements 120 and the second antenna element 130 are positioned at same level.Such as, in one embodiment, handheld apparatus 100 also comprises a substrate (not shown), and ground plane 110, first day kind of thread elements 120 and the second antenna element 130 are all configured in one of described substrate on the surface.In addition, first day kind of thread elements 120 is relative to minor face 111, and the second antenna element 130 is relative to the first long limit 112.Also namely, first day kind of thread elements 120 configures along the minor face 111 of ground plane 110, and the second antenna element 130 configures along the first long limit 112 of ground plane 110.
Further, first day kind of thread elements 120 is a unipole antenna (monopole antenna).In addition, first day kind of thread elements 120 is electrically connected to signal source S11, and the second corner 102 of contiguous ground plane 110.Second antenna element 130 comprises the first Department of Radiation 131 and feeding portion 132.Wherein, one end of the first Department of Radiation 131 is electrically connected the first long limit 112 and contiguous first corner 101.In other words, the second antenna element 130 has an earth terminal, and the first corner 101 of the contiguous ground plane 110 of the earth terminal of the second antenna element 130.Moreover the first Department of Radiation 131 is electrically connected to signal source S12 by feeding portion 132.By this, the second antenna element 130 can form a planar inverted F-antenna (planar inverted-F antenna).
Operationally, signal source S11 can provide FD feed to first day kind of thread elements 120.By this, first day kind of thread elements 120 can produce and excite mode, and under operating in the first frequency band.In addition, handheld apparatus 100 adjusts the equivalent ground plane length of first day kind of thread elements 120 by the second antenna element 130.By this, the characteristic of first day kind of thread elements 120 can be promoted, and contribute to the development of handheld apparatus 100 on lightening.
For example, when first day kind of thread elements 120 operates, handheld apparatus 100 can shutdown signal source S12, to cause the second antenna element 130 shut-down operation (also namely, stopping transceiving electromagnetic ripple).In addition, along with the operation of first day kind of thread elements 120, ground plane 110 will be dispersed with the excitation current of first day kind of thread elements 120.In addition, the excitation current on ground plane 110 mainly concentrates on the first corner 101 and the second corner 102 of ground plane 110.In other words, the most strength of the excitation current of the contiguous first day kind of thread elements 120 of the earth terminal of the second antenna element 130.By this, handheld apparatus 100 adjusts the equivalent ground plane length of first day kind of thread elements 120 by the second antenna element 130.
In Fig. 1 embodiment, the first Department of Radiation 131 can in order to define the equivalent ground plane length of first day kind of thread elements 120 with the length summation of minor face 111.Also namely, if the length of minor face 111 is length L11, and when the length of the first Department of Radiation 131 is length L12, then the equivalent ground plane length of first day kind of thread elements 120 is equivalent to being added of length L11 and length L12.In addition, the equivalent ground plane length of first day kind of thread elements 120 can be such as 0.44 ~ 0.46 times of wavelength of the centre frequency of first day kind of thread elements 120.In other words, in one embodiment, the length summation (also namely, length L11 and length L12 be added) of the first Department of Radiation 131 and minor face 111 can be such as 0.44 ~ 0.46 times of wavelength of the centre frequency of first day kind of thread elements 120.
Specifically, in Fig. 1 embodiment, ground plane 110 does not have best size to first day kind of thread elements 120, and therefore the present embodiment arranges the second antenna element 130 in position.By this, second antenna element 130 is except can in order to except transceiving electromagnetic ripple, the equivalent ground plane length of first day kind of thread elements 120 on minor face 111 can also be adjusted to optimum value, and then promote the characteristic (such as, bandwidth of operation) of first day kind of thread elements 120.
For example, Fig. 2 be the first day kind of thread elements of one embodiment of the invention return loss (return loss) schematic diagram, Fig. 3 be second antenna element of one embodiment of the invention return loss schematic diagram, and Fig. 4 is the antenna efficiency schematic diagram of the first day kind of thread elements of one embodiment of the invention.In Fig. 2-4 embodiment, the size of ground plane 110 is about 180x100mm
2, the size of first day kind of thread elements 120 is about 67x5mm
2, and the size of the second antenna element 130 is about 53x10mm
2.
As shown in Figure 2, return loss curve 210 and return loss under second antenna element 130 in order to represent not arranging, and return loss curve 220 and return loss under second antenna element 130 in order to represent arranging.Just return loss curve 210 and return and lose curve 220, second antenna element 130 times be not set, impedance matching when first day kind of thread elements 120 operates near 900MHz is not good, and when the second antenna element 130 is set up, first day kind of thread elements 120 can contain 822MHz ~ 964MHz.In other words, the second antenna element 130 can promote the bandwidth of operation of first day kind of thread elements 120 effectively, can contain GSM850/900 frequency band to cause.
Moreover the second antenna element 130 also can in order to transceiving electromagnetic ripple.For example, as shown in Figure 3, the second antenna element 130 can be such as operating in about 1,575MHz, to contain GPS frequency band.It should be noted that the second antenna element 130 can not improve for the characteristic of first day kind of thread elements 120 under operation.In addition, when the second antenna element 130 shut-down operation, first day kind of thread elements 120 can utilize the second antenna element 130 that its equivalent ground plane length is adjusted to optimum value, to promote transmitting-receiving quality by this.For example, as shown in Figure 4, antenna efficiency when first day kind of thread elements 120 operates in 824MHz ~ 960MHz is about 57% ~ 88%, and then meets the demand of handheld apparatus 100 in application.
Although Fig. 1 embodiment lists the example of first day kind of thread elements 120 and the second antenna element 130, it is also not used to limit the present invention.For example, first day kind of thread elements 120 may also be planar inverted F-antenna, loop aerial (loop antenna), dipole antenna (dipole antenna), slot antenna (slot antenna) or the antenna of any form.In addition, the second antenna element 130 can be such as the antenna with earth terminal.
For example, Fig. 5 is the schematic diagram of the handheld apparatus of another embodiment of the present invention.Handheld apparatus 500 cited by Fig. 5 is substantially similar to the handheld apparatus 100 cited by Fig. 1.Be with Fig. 1 main difference part, the second antenna element 530 in Fig. 5 is made up of the first Department of Radiation 531.
Specifically, one end of the first Department of Radiation 531 is electrically connected the first long limit 112 and contiguous first corner 101, and the other end of the first Department of Radiation 531 is electrically connected to signal source S12.By this, the second antenna element 530 can form a loop aerial.In addition, the first Department of Radiation 531 can in order to define the equivalent ground plane length of first day kind of thread elements 120 with the length summation of minor face 111.Also namely, if the length of the first Department of Radiation 531 is length L52, then the equivalent ground plane length of first day kind of thread elements 120 is equivalent to being added of length L11 and length L52.
Moreover, with Fig. 1 embodiment similarly, when first day kind of thread elements 120 operates, the second antenna element 530 can shut-down operation (also namely, stop transceiving electromagnetic ripple).Now, handheld apparatus 500 will adjust the equivalent ground plane length of first day kind of thread elements 120 by the second antenna element 530, and then promotes the characteristic of first day kind of thread elements 120.Moreover the second antenna element 530 also can carry out the operation of transceiving electromagnetic ripple, and the second antenna element 530 now can not improve for the characteristic of first day kind of thread elements 120.Thin portion as each element in Fig. 5 illustrates and has been included in each enforcement above-mentioned, therefore does not repeat them here.
Fig. 6 is the schematic diagram of the handheld apparatus of further embodiment of this invention.Handheld apparatus 600 cited by Fig. 6 is substantially similar to the handheld apparatus 100 cited by Fig. 1.Be with Fig. 1 main difference part, the handheld apparatus 600 of Fig. 6 also comprises third antenna element 610.
Specifically, third antenna element 610 is relative to the second long limit 113.Also namely, third antenna element 610 configures along the second long limit 113 of ground plane 110.In addition, third antenna element 610 comprises the second Department of Radiation 611 and feeding portion 612.Wherein, one end of the second Department of Radiation 611 is electrically connected the second long limit 113 and contiguous second corner 102.In other words, third antenna element 610 has an earth terminal, and the second corner 102 of the contiguous ground plane 110 of the earth terminal of third antenna element 610.Moreover the second Department of Radiation 611 is electrically connected to signal source S61 by feeding portion 612.By this, third antenna element 610 can form a planar inverted F-antenna.
Operationally, when first day kind of thread elements 120 operates, handheld apparatus 600 can shutdown signal source S12 and signal source S61, to cause the second antenna element 130 and third antenna element 610 shut-down operation (also namely, stopping transceiving electromagnetic ripple).In addition, the most strength of the excitation current of the second antenna element 130 and all contiguous first day kind of thread elements 120 of the earth terminal of third antenna element 610.Therefore, handheld apparatus 600 adjusts the equivalent ground plane length of first day kind of thread elements 120 by the second antenna element 130 and third antenna element 610.By this, the characteristic of first day kind of thread elements 120 can be promoted, and contribute to the development of handheld apparatus 600 on lightening.
In Fig. 6 embodiment, the first Department of Radiation 131, second Department of Radiation 611 can in order to define the equivalent ground plane length of first day kind of thread elements 120 with the length summation of minor face 111.Also namely, if the length of the second Department of Radiation 611 is L61, then the equivalent ground plane length of first day kind of thread elements 120 is equivalent to being added of length L11, length L12 and length L61.In addition, the equivalent ground plane length of first day kind of thread elements 120 can be such as 0.44 ~ 0.46 times of wavelength of the centre frequency of first day kind of thread elements 120.
In other words, in one embodiment, the first Department of Radiation 131, second Department of Radiation 611 and the length summation of minor face 111 can be such as 0.44 ~ 0.46 times of wavelength of the centre frequency of first day kind of thread elements 120.Moreover the second antenna element 130 and third antenna element 610 also can respectively in order to transceiving electromagnetic ripples, and the second antenna element 130 now can not improve for the characteristic of first day kind of thread elements 120 with third antenna element 610.In addition, with Fig. 5 embodiment similarly, third antenna element 610 also can be directly made up of the first Department of Radiation, and the other end of the first Department of Radiation is electrically connected directly to signal source S61, forms a loop aerial to cause third antenna element 610.Thin portion as each element in Fig. 6 illustrates and has been included in each enforcement above-mentioned, therefore does not repeat them here.
In sum, handheld apparatus of the present invention comprises along the first day kind of thread elements set by the minor face of ground plane and the first long limit and the second antenna element, and the first corner that the contiguous minor face of the earth terminal of the second antenna element is crossing with the first long limit.By this, the second antenna element is except in order to except transceiving electromagnetic ripple, also in order to adjust the equivalent ground plane length of first day kind of thread elements, and then can promoting the characteristic (such as, bandwidth of operation) of first day kind of thread elements.In other words, the present invention additionally need not arrange the characteristic that grounded metal sheet just can promote first day kind of thread elements, therefore contributes to the development of handheld apparatus on lightening.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a handheld apparatus, is characterized in that, comprising:
One ground plane, comprises an adjacent minor face and one first long limit, to form one first corner;
One first day kind of thread elements, relative to this minor face; And
One second antenna element, relative to this first long limit, and comprise one first Department of Radiation, wherein one end of this first Department of Radiation is electrically connected this first long limit and this first corner contiguous, and this handheld apparatus adjusts the equivalent ground plane length of this first day kind of thread elements by this second antenna element.
2. handheld apparatus according to claim 1, is characterized in that, when this first day kind of thread elements operates, and this second antenna element shut-down operation.
3. handheld apparatus according to claim 1, is characterized in that, the length summation of this first Department of Radiation and this minor face is in order to define the equivalent ground plane length of this first day kind of thread elements.
4. handheld apparatus according to claim 1, is characterized in that, the equivalent ground plane length of this first day kind of thread elements is 0.44 ~ 0.46 times of wavelength of the centre frequency of this first day kind of thread elements.
5. handheld apparatus according to claim 1, is characterized in that, this second antenna element is a planar inverted F-antenna or a loop aerial.
6. handheld apparatus according to claim 1, is characterized in that, this ground plane also comprises the one second long limit adjacent with this minor face, to form one second corner, and this first day kind of thread elements this second corner contiguous.
7. handheld apparatus according to claim 6, is characterized in that, also comprises:
One third antenna element, relative to this second long limit, and comprise one second Department of Radiation, wherein one end of this second Department of Radiation is electrically connected this second long limit and this second corner contiguous, and this handheld apparatus also adjusts the equivalent ground plane length of this first day kind of thread elements by this third antenna element.
8. handheld apparatus according to claim 7, is characterized in that, when this first day kind of thread elements operates, and this second antenna element and this third antenna element shut-down operation.
9. handheld apparatus according to claim 7, is characterized in that, the length summation of this first Department of Radiation, this second Department of Radiation and this minor face is in order to define the equivalent ground plane length of this first day kind of thread elements.
10. handheld apparatus according to claim 1, is characterized in that, this ground plane, this first day kind of thread elements and this second antenna element are positioned at same level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410116070.3A CN104953234B (en) | 2014-03-26 | 2014-03-26 | Handheld apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410116070.3A CN104953234B (en) | 2014-03-26 | 2014-03-26 | Handheld apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104953234A true CN104953234A (en) | 2015-09-30 |
| CN104953234B CN104953234B (en) | 2018-02-09 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410116070.3A Active CN104953234B (en) | 2014-03-26 | 2014-03-26 | Handheld apparatus |
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| CN (1) | CN104953234B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109888467A (en) * | 2017-12-06 | 2019-06-14 | 宏碁股份有限公司 | Wireless electron device |
| CN112751160A (en) * | 2019-10-31 | 2021-05-04 | 华为技术有限公司 | Foldable electronic device |
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| CN103178331A (en) * | 2011-12-23 | 2013-06-26 | 启碁科技股份有限公司 | Tunable antenna and radio frequency device |
| WO2013114840A1 (en) * | 2012-01-31 | 2013-08-08 | パナソニック株式会社 | Antenna device |
| CN103636064A (en) * | 2013-07-30 | 2014-03-12 | 华为终端有限公司 | Wireless terminal |
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| CN101540431A (en) * | 2008-03-17 | 2009-09-23 | 启碁科技股份有限公司 | Multi-frequency antenna |
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| JP2013046141A (en) * | 2011-08-23 | 2013-03-04 | Kyocera Corp | Radio communication terminal |
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| CN109888467B (en) * | 2017-12-06 | 2020-12-22 | 宏碁股份有限公司 | Wireless electronic device |
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| CN112751160A (en) * | 2019-10-31 | 2021-05-04 | 华为技术有限公司 | Foldable electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104953234B (en) | 2018-02-09 |
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