CN103633418A - Multi-frequency plane inverted F-type antenna - Google Patents
Multi-frequency plane inverted F-type antenna Download PDFInfo
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- CN103633418A CN103633418A CN201210295809.2A CN201210295809A CN103633418A CN 103633418 A CN103633418 A CN 103633418A CN 201210295809 A CN201210295809 A CN 201210295809A CN 103633418 A CN103633418 A CN 103633418A
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Abstract
Provided is a multi-frequency plane inverted F-type antenna which comprises a grounding plate, a radiation plane and a coaxial transmission line. The grounding plate is provided with a lengthwise edge and a grounding feed-in point. The radiation plane extends from the aforementioned lengthwise edge of the grounding plate. The radiation plane comprises a first arm which extends from one end of the aforementioned lengthwise edge and a second arm which extends from the other end of the aforementioned lengthwise edge. The first arm is provided with a signal feed-in point and a first radiation part. The grounding feed-in point is close to the second arm, and a second radiation part is formed by the second arm. The coaxial transmission line comprises a central conductive wire which is connected with the signal feed-in point and a shielding external layer which is connected with the grounding feed-in point. In the radiation plane, the second arm is arranged on the external side of the first arm and surrounds the first arm. The multi-frequency plane inverted F-type antenna is wide in frequency range coverage.
Description
[technical field]
The present invention relates to a kind of level reverse T-shaped aerial of multifrequency.
[background technology]
Wireless mobile Development of Communication is showing improvement or progress day by day, and it is also more prevalent that various end products carry 3G wireless modules, at present with MID or flat computer much-sought-after item the most.Because this type product is comparatively compact, antenna structure space also compressed and be more easily subject to arround its signal receiving/transmission usefulness of machine component affecting.Traditional PI FA structure (plane inverse F type) WWAN antenna its radiation field shape on this series products is vulnerable to improper absorption, causes usefulness poor, cannot contain wider frequency band.
Therefore, be necessary to design a kind of invention antenna and overcome the problems referred to above.
[summary of the invention] main purpose of the present invention is to provide a kind of level reverse T-shaped aerial of multifrequency of bandwidth.
For reaching above-mentioned purpose, level reverse T-shaped aerial of multifrequency of the present invention comprises ground plate, radiator plane and coaxial transmission line; Ground plate has lengthwise edge and ground connection load point; Radiator plane is to extend from the above-mentioned lengthwise edge of ground plate, described radiator plane comprises the first arm extending from one end, above-mentioned lengthwise edge and the second arm extending from the above-mentioned lengthwise edge other end, the first arm is provided with signal feed-in point and the first Department of Radiation, and above-mentioned ground connection load point is close in the second arm and the second arm forms the second Department of Radiation; Coaxial transmission line comprises the shield external layer that is connected in the center conductor of aforementioned signal feed-in point and is connected in ground connection load point; In radiator plane, the second arm is positioned at the outside of the first arm and surrounds the first arm.
For reaching above-mentioned purpose, level reverse T-shaped aerial of multifrequency of the present invention can also comprise ground plate, the first Department of Radiation and the second Department of Radiation; Ground plate is provided with ground connection load point; The first Department of Radiation is to set out and extend and form from a signal feed-in point, and is connected in ground plate by a junction, interval between connecting portion and ground plate and form impedance matching groove; The second Department of Radiation is from ground connection load point, around extension; Ground plate and the second Department of Radiation form an outer ring, and the second Department of Radiation and connecting portion are in above-mentioned outer ring.
Compare with known techniques, it is wide that level reverse T-shaped aerial of multifrequency of the present invention is contained frequency range.
[accompanying drawing explanation]
Fig. 1 is the three-dimensional combination figure of level reverse T-shaped aerial of multifrequency of the present invention.
Fig. 2 is the front view of Fig. 1 antenna body.
Fig. 3 is the voltage standing wave ratio figure of level reverse T-shaped aerial of multifrequency of the present invention.
[embodiment]
Refer to shown in Fig. 1, level reverse T-shaped aerial of multifrequency 100 of the present invention comprises antenna body 10, aluminium foil 20 and the coaxial transmission line 30 of being made by metallic plate die cut.Antenna body 10 comprises horizontal ground plate 11 and from the upwardly extending radiator plane 12 of lengthwise edge-perpendicular of ground plate.The bottom surface that sticks in ground plate 11 after the vertical folding in one end of aluminium foil 20, aluminium foil contributes to increase the earthing effect of antenna body 10, is conducive to improvement and the radiation gain of matched impedance.Coaxial transmission line 30 comprises center conductor 31 and shield external layer 32, and center conductor 131 is welded in signal feed-in point, and shield external layer 32 is welded in the ground connection load point of ground plate 11.
Shield external layer 32 is welded in the intersection of ground plate 11 and the second arm 14, thereby form ground connection load point 1420, therefore this second arm 14 forms the second Department of Radiation, this second Department of Radiation comprises three sections that connect successively,, the first paragraph 141 parallel with the first paragraph of the first Department of Radiation 132 and second segment and second segment 142 and the 3rd section 143, the second segment 142 of the 3rd section of parallel and the second Department of Radiation, these three sections of outsides that are door type and are positioned at the first Department of Radiation 132, thus the first Department of Radiation and connecting portion are surrounded in it.From drawing, can find out that ground plate 11 and the second Department of Radiation form an outer ring, the second Department of Radiation and connecting portion are in above-mentioned outer ring.The outward flange 1431 of the 3rd section 143 roughly aligns with the outer end of ground plate 11 and connecting portion 131, so design can be when being used metal material as far as possible, obtain wider frequency range,, in radiator plane, define mutually perpendicular longitudinally and horizontal direction, the terminal edge of the second Department of Radiation 14 aligns with the terminal edge of the first Department of Radiation 132 on longitudinally, the terminal edge of the second Department of Radiation in a lateral direction with the justified margin of connecting portion.The second Department of Radiation 14 works in lower the second working frequency range (2.4 ~ 2.5GHZ) by the coupling with the first Department of Radiation.
In the present embodiment, between ground plate 11 and radiator plane 11, by auxiliary earth plate 111, be connected, auxiliary earth plate 111 is extended by the lengthwise edge-perpendicular bending of horizontal grounding plate 11, above-mentioned first, second arm all directly one be connected in the upper lengthwise edge of auxiliary earth plate 111, the impedance matching groove 15 that forms an one-sided opening between the top edge of the lower limb of connecting portion 131 and auxiliary earth plate 111, is used for regulating impedance matching.Signal feed-in point 1320 and ground connection load point lay respectively at two ends of this impedance matching groove 15.
The second arm 14 of the present invention surrounds the first arm 13, thereby forms the first Department of Radiation 132 of the second Department of Radiation 14 encirclement high frequencies of low frequency, the low-frequency signal current path direction of control antenna, and low-frequency resonance produces by producing coupling with high-frequency current.Fig. 3 has shown voltage standing wave ratio figure of the present invention, and the present invention is applicable to above-mentioned first, second working frequency range.
Claims (10)
1. a level reverse T-shaped aerial of multifrequency, it comprises ground plate, radiator plane and coaxial transmission line; Ground plate has lengthwise edge and ground connection load point; Radiator plane is to extend from the above-mentioned lengthwise edge of ground plate, described radiator plane comprises the first arm extending from one end, above-mentioned lengthwise edge and the second arm extending from the above-mentioned lengthwise edge other end, the first arm is provided with signal feed-in point and the first Department of Radiation, and above-mentioned ground connection load point is close in the second arm and the second arm forms the second Department of Radiation; Coaxial transmission line comprises the shield external layer that is connected in the center conductor of aforementioned signal feed-in point and is connected in ground connection load point; It is characterized in that: in radiator plane, the second arm is positioned at the outside of the first arm and surrounds the first arm.
2. level reverse T-shaped aerial of multifrequency as claimed in claim 1, it is characterized in that: the first arm also comprises the connecting portion that connects the first Department of Radiation and ground plate, signal feed-in point is located at the intersection of the first Department of Radiation and connecting portion, interval between described connecting portion and ground plate and form impedance matching groove.
3. level reverse T-shaped aerial of multifrequency as claimed in claim 2, it is characterized in that: aforementioned radiator plane definition has mutually perpendicular longitudinally and horizontal direction, the terminal edge of the second Department of Radiation aligns with the terminal edge of the first Department of Radiation on longitudinally, the terminal edge of the second Department of Radiation in a lateral direction with the justified margin of connecting portion.
4. level reverse T-shaped aerial of multifrequency as claimed in claim 3, it is characterized in that: aforementioned connecting portion is parallel to ground plate, the first Department of Radiation comprises successively perpendicular to the first paragraph of connecting portion and is parallel to the second segment of connecting portion, the second Department of Radiation comprises successively the first paragraph being parallel to perpendicular to connecting portion, the second segment that is parallel to connecting portion and perpendicular to the 3rd section of connecting portion, the 3rd section is the end of above-mentioned the second Department of Radiation.
5. level reverse T-shaped aerial of multifrequency as claimed in claim 4, is characterized in that: aforementioned the first Department of Radiation and connecting portion form in space in above-mentioned three sections of the second Department of Radiation.
6. level reverse T-shaped aerial of multifrequency as claimed in claim 5, is characterized in that: aforementioned ground plate is perpendicular to above-mentioned radiator plane.
7. level reverse T-shaped aerial of multifrequency as claimed in claim 6, it is characterized in that: aforementioned ground plate also comprises the auxiliary earth plate extending from above-mentioned lengthwise edge-perpendicular, auxiliary earth plate and radiator plane are positioned at same plane, and above-mentioned ground connection load point is positioned on the auxiliary earth plate of contiguous the second Department of Radiation.
8. level reverse T-shaped aerial of multifrequency as claimed in claim 1, is characterized in that: the working band of aforementioned the first Department of Radiation is 5.15-5.85GHZ frequency range, and the working band of the second Department of Radiation is 2.4-2.5GHZ frequency range.
9. a level reverse T-shaped aerial of multifrequency, it comprises ground plate, the first Department of Radiation and the second Department of Radiation; Ground plate is provided with ground connection load point; The first Department of Radiation is to set out and extend and form from a signal feed-in point, and is connected in ground plate by a junction, interval between connecting portion and ground plate and form impedance matching groove; The second Department of Radiation is from ground connection load point, around extension; It is characterized in that: ground plate and the second Department of Radiation form an outer ring, and the second Department of Radiation and connecting portion are in above-mentioned outer ring.
10. level reverse T-shaped aerial of multifrequency as claimed in claim 9, it is characterized in that: aforementioned connecting portion is parallel to ground plate, the first Department of Radiation comprises successively perpendicular to the first paragraph of connecting portion and is parallel to the second segment of connecting portion, and the second Department of Radiation comprises the first paragraph being parallel to perpendicular to connecting portion, the second segment that is parallel to connecting portion and successively perpendicular to the 3rd section of connecting portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210295809.2A CN103633418B (en) | 2012-08-20 | 2012-08-20 | Level reverse T-shaped aerial of multifrequency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210295809.2A CN103633418B (en) | 2012-08-20 | 2012-08-20 | Level reverse T-shaped aerial of multifrequency |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103633418A true CN103633418A (en) | 2014-03-12 |
| CN103633418B CN103633418B (en) | 2016-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210295809.2A Expired - Fee Related CN103633418B (en) | 2012-08-20 | 2012-08-20 | Level reverse T-shaped aerial of multifrequency |
Country Status (1)
| Country | Link |
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| CN (1) | CN103633418B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD771601S1 (en) | 2014-11-21 | 2016-11-15 | Foxconn Interconnect Technology Limited | Antenna |
| US9735467B2 (en) | 2014-02-17 | 2017-08-15 | Foxconn Interconnect Technology Limited | Antenna |
| CN110649386A (en) * | 2016-05-10 | 2020-01-03 | 和硕联合科技股份有限公司 | Dual frequency printed antenna |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040046697A1 (en) * | 2002-09-11 | 2004-03-11 | Tai Lung Sheng | Dual band antenna |
| CN1669182A (en) * | 2002-09-10 | 2005-09-14 | 弗拉克托斯股份有限公司 | Coupled multi-band antenna |
| CN1761106A (en) * | 2004-10-13 | 2006-04-19 | 日立电线株式会社 | Film antenna |
| TWM321153U (en) * | 2007-01-25 | 2007-10-21 | Wistron Neweb Corp | Multi-band antenna |
| TWM343257U (en) * | 2008-05-16 | 2008-10-21 | Cheng Uei Prec Ind Co Ltd | Dual-band antenna |
| TW200845490A (en) * | 2007-05-07 | 2008-11-16 | Quanta Comp Inc | Dual band antenna |
| CN201185228Y (en) * | 2008-02-29 | 2009-01-21 | 富港电子（东莞）有限公司 | antenna |
| CN102136624A (en) * | 2010-11-22 | 2011-07-27 | 华为终端有限公司 | Antenna and terminal with same |
-
2012
- 2012-08-20 CN CN201210295809.2A patent/CN103633418B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1669182A (en) * | 2002-09-10 | 2005-09-14 | 弗拉克托斯股份有限公司 | Coupled multi-band antenna |
| US20040046697A1 (en) * | 2002-09-11 | 2004-03-11 | Tai Lung Sheng | Dual band antenna |
| CN1761106A (en) * | 2004-10-13 | 2006-04-19 | 日立电线株式会社 | Film antenna |
| TWM321153U (en) * | 2007-01-25 | 2007-10-21 | Wistron Neweb Corp | Multi-band antenna |
| TW200845490A (en) * | 2007-05-07 | 2008-11-16 | Quanta Comp Inc | Dual band antenna |
| CN201185228Y (en) * | 2008-02-29 | 2009-01-21 | 富港电子（东莞）有限公司 | antenna |
| TWM343257U (en) * | 2008-05-16 | 2008-10-21 | Cheng Uei Prec Ind Co Ltd | Dual-band antenna |
| CN102136624A (en) * | 2010-11-22 | 2011-07-27 | 华为终端有限公司 | Antenna and terminal with same |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9735467B2 (en) | 2014-02-17 | 2017-08-15 | Foxconn Interconnect Technology Limited | Antenna |
| USD771601S1 (en) | 2014-11-21 | 2016-11-15 | Foxconn Interconnect Technology Limited | Antenna |
| CN110649386A (en) * | 2016-05-10 | 2020-01-03 | 和硕联合科技股份有限公司 | Dual frequency printed antenna |
| CN110649386B (en) * | 2016-05-10 | 2021-01-05 | 和硕联合科技股份有限公司 | Double-frequency printed antenna |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103633418B (en) | 2016-06-08 |
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