CN100364172C - Internal movable terminal double antenna - Google Patents
Internal movable terminal double antenna Download PDFInfo
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- CN100364172C CN100364172C CNB2004100530235A CN200410053023A CN100364172C CN 100364172 C CN100364172 C CN 100364172C CN B2004100530235 A CNB2004100530235 A CN B2004100530235A CN 200410053023 A CN200410053023 A CN 200410053023A CN 100364172 C CN100364172 C CN 100364172C
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Abstract
The present invention relates to a double antenna with an internal movable terminal for the technical field of communication. The present invention comprises antenna units, power feed ports, matching impedance, a dielectric plate and earthing units, wherein the number of the antenna units is two, and the antenna units are both positioned at the outside of the dielectric plate and are distributed in central symmetry; the matching impedance is matched between the tail ends of the antenna units; the number of the power feed ports is two, and cores of the power feed ports are connected with the antenna units; the number of the earthing units is two, each earthing unit is composed of an earthing part at the outside of the dielectric plate, an earthing part at the inside of the dielectric plate and an earthing part at the bottom of the dielectric plate, and the earthing parts are communicated into a whole. The present invention has the advantages of simple structure, small integral structure, small distance between the antenna units and small mutual coupling; when the double antenna with an internal movable terminal is merged, antenna gains are high and are evenly distributed within the range of horizontal 360 DEG.
Description
Technical field
The present invention relates to a kind of antenna that is used for communication technical field, especially a kind of built-in mobile terminal double antenna.
Background technology
In the prior art, generally adopt omnidirectional's single antenna at communication terminal, it is low to gain, poor anti jamming capability.There is minority to adopt many antennas, but, makes the antenna element spacing very big in order to eliminate the influence of mutual coupling.Thereby make the antenna cumulative volume very big, be not easy to carry.
Find by literature search, number of patent application 02126816.9, patent name is: the double antenna that can control radiation characteristic in a kind of folding type mobile communication terminal, patent publication No. 1399368, this double antenna comprises first directional antenna on the folded part that is installed in communication terminal, and is installed in second directional antenna on the main body of communication terminal.In fact just second directional antenna is in running order always for this double antenna, and first directional antenna is just assisted the radiation field of adjusting communication terminal when conversation, two antennas can't use as two antenna elements independently, and the gain of antenna was very low when this also made non-talking state.On the other hand, owing to adopt directional antenna,, can't realize that also omnidirectional signal receives even two antennas are worked simultaneously.
Also find in the retrieval, in November, 2003, people such as Tayeb A.Denidni was at IEEETRANSACTIONS ON VEHICULAR TECHNOLOGY (vehicle-mounted technology), 52 the 6th phases of volume were delivered " Experimental Investigations of a New Adaptive Dual-Antenna Array forHandset Applications (a kind of new self adaptation double antenna battle array experimental study that is used for mobile phone) ", adopt double antenna and adaptive algorithm to realize smart antenna at portable terminal, two antenna element spacings are half-wavelength, can realize two independently antenna elements.But when operating frequency was the 1000MHz left and right sides, the antenna element spacing was too big, and antenna is difficult to place at portable terminal.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art and defective, a kind of built-in mobile terminal double antenna is provided, make it solve communicating terminal and adopt single antenna, low, poor anti jamming capability of gaining and portable terminal adopt many antennas, still higher, the problem that the antenna cumulative volume is very big of the mutual coupling that closely causes owing to the unit.
The present invention is achieved by the following technical solutions, the present invention includes: antenna element, feed port, matched impedance, dielectric-slab and ground unit.Described dielectric-slab turns over the curved of two 90 degree, becomes " door " shape.Two of described antenna elements, all be positioned at the portal structures outside of dielectric-slab, two antenna element centers are symmetrically distributed, mate with matched impedance between the antenna element end, described feed port has two, the core of feed port is connected with antenna element, described ground unit has two, ground unit is made of the grounded part that is positioned at the dielectric-slab portal structures outside, the grounded part that is positioned at the grounded part of dielectric-slab portal structures inboard and is positioned at dielectric-slab portal structures bottom, and is communicated with as a whole.
Described two antenna elements turn over the curved of three 90 degree, all are positioned at the portal structures outside of dielectric-slab.Described antenna element bending part has chamfering.
The grounded part that described ground unit is positioned at the dielectric-slab portal structures outside is the shape of the right band boss, also can be other shapes.
Described antenna element and ground unit are conductor, and the outer conductor of ground unit and feed port is connected.
Described dielectric-slab is the high-k material.
The present invention and prior art contrast, and its effect is actively with tangible.The present invention adds several branches because become " door " shape in overall structure on antenna element, and described antenna element turns over the curved of three 90 degree, and the outer chamfering of increase, makes compact conformation of the present invention, and volume is little; Described antenna element spacing is littler, and mutual coupling is littler, and radiation is better, becomes two independently antenna elements.Further, when described two antenna elements are merged into antenna and used,, make the antenna gain height because rational in infrastructure, described antenna element spacing reduces, mutual coupling is little, and in horizontal plane 360 degree scopes distribution uniform.
Description of drawings
Fig. 1 is the Facad structure schematic diagram of a kind of built-in mobile terminal double antenna of the present invention
Fig. 2 is that the A of a kind of built-in mobile terminal double antenna of the present invention is to structural representation
Fig. 3 is that the B of a kind of built-in mobile terminal double antenna of the present invention is to structural representation
Fig. 4 is that the C of a kind of built-in mobile terminal double antenna of the present invention is to structural representation
Fig. 5 is that the D of a kind of built-in mobile terminal double antenna of the present invention is to structural representation
Fig. 6 is the E-E cross section structure schematic diagram of a kind of built-in mobile terminal double antenna of the present invention
Embodiment
As Fig. 1～shown in Figure 6, the present invention includes: first antenna element 1, second antenna element 2, matched impedance 3, dielectric-slab 4, first ground unit 5, first feed port 6, second feed port 7, second ground unit 8.Dielectric-slab 4 turns over the curved of two 90 degree, becomes " door " shape.Described first antenna element 1, second antenna element 2 all is positioned at the portal structures outside of dielectric-slab 4, and the center is symmetrically distributed, two antenna elements 1,2 end has matched impedance 3 to connect, the core of first feed port 6 and first antenna element 1 join, the core of second feed port 7 and second antenna element 2 join, first ground unit 5, second ground unit 8 is respectively by the grounded part that is positioned at the dielectric-slab 4 portal structures outside, the grounded part that is positioned at dielectric-slab 4 portal structures inboards constitutes with the grounded part that is positioned at dielectric-slab 4 portal structures bottom, and is communicated with as a whole.
The grounded part that first ground unit 5, second ground unit 8 are positioned at the dielectric-slab 4 portal structures outside is the shape of the right band boss.
The outer conductor of first ground unit 5 and first feed port 6 is connected, and the outer conductor of second ground unit 8 and second feed port 7 is connected.
Claims (4)
1. built-in mobile terminal double antenna, comprise: first antenna element (1), second antenna element (2), dielectric-slab (4), first ground unit (5), first feed port (6), second feed port (7), second ground unit (8), it is characterized in that, also comprise: matched impedance (3), described dielectric-slab (4) turns over the curved of two 90 degree, become " door " shape, described first, second antenna element (1,2) all be positioned at outside the portal structures of dielectric-slab (4), and the center is symmetrically distributed, the end of first antenna element (1) and second antenna element (2) has matched impedance (3) to be connected, the core of first feed port (6) and first antenna element (1) join, the core of second feed port (7) and second antenna element (2) join, first ground unit (5), second ground unit (8) is all by the as a whole grounded part that is positioned at dielectric-slab (4) the portal structures outside of its connection separately, the grounded part that is positioned at dielectric-slab (4) portal structures inboard constitutes with the grounded part that is positioned at dielectric-slab (4) portal structures bottom; First antenna element (1) turns over the curved of 3 90 degree in the outside of dielectric-slab (4) portal structures, second antenna element (2) turns over the curved of 3 90 degree in the portal structures outside of dielectric-slab (4), and first, second antenna element (1,2) bending part has chamfering.
2. built-in mobile terminal double antenna according to claim 1 is characterized in that, first ground unit (5) and the grounded part that is positioned at dielectric-slab (4) the portal structures outside second ground unit (8) are the shape of the right band boss.
3. built-in mobile terminal double antenna according to claim 1 is characterized in that, first ground unit (5) is connected with the outer conductor of first feed port (6), and second ground unit (8) is connected with the outer conductor of second feed port (7).
4. built-in mobile terminal double antenna according to claim 1 is characterized in that, first antenna element (1), second antenna element (2), first ground unit (5) and second ground unit (8) are conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100530235A CN100364172C (en) | 2004-07-22 | 2004-07-22 | Internal movable terminal double antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100530235A CN100364172C (en) | 2004-07-22 | 2004-07-22 | Internal movable terminal double antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1588695A CN1588695A (en) | 2005-03-02 |
| CN100364172C true CN100364172C (en) | 2008-01-23 |
Family
ID=34602703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100530235A Expired - Fee Related CN100364172C (en) | 2004-07-22 | 2004-07-22 | Internal movable terminal double antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100364172C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101132447B1 (en) * | 2006-06-23 | 2012-03-30 | 엘지전자 주식회사 | Mobile communication terminal |
| US7768463B2 (en) * | 2008-04-16 | 2010-08-03 | Sony Ericsson Mobile Communications Ab | Antenna assembly, printed wiring board and device |
| US9119223B2 (en) * | 2012-12-06 | 2015-08-25 | Futurewei Technologies, Inc. | Two antennas in close proximity with signal isolation |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6535170B2 (en) * | 2000-12-11 | 2003-03-18 | Sony Corporation | Dual band built-in antenna device and mobile wireless terminal equipped therewith |
| US6621464B1 (en) * | 2002-05-08 | 2003-09-16 | Accton Technology Corporation | Dual-band dipole antenna |
| US6717551B1 (en) * | 2002-11-12 | 2004-04-06 | Ethertronics, Inc. | Low-profile, multi-frequency, multi-band, magnetic dipole antenna |
-
2004
- 2004-07-22 CN CNB2004100530235A patent/CN100364172C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6535170B2 (en) * | 2000-12-11 | 2003-03-18 | Sony Corporation | Dual band built-in antenna device and mobile wireless terminal equipped therewith |
| US6621464B1 (en) * | 2002-05-08 | 2003-09-16 | Accton Technology Corporation | Dual-band dipole antenna |
| US6717551B1 (en) * | 2002-11-12 | 2004-04-06 | Ethertronics, Inc. | Low-profile, multi-frequency, multi-band, magnetic dipole antenna |
Non-Patent Citations (1)
| Title |
|---|
| Compact dual-frequency PIFA with achip-inductor-loaded rectangular spiral strip. Shih-huang Yeh,Kin-lu Wong.Microwave and optical technology letters,Vol.Vol.33 No.No.6. 2002 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1588695A (en) | 2005-03-02 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080123 Termination date: 20140722 |
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