CN1933240B - Planar invented F multi-frequency antenna - Google Patents
Planar invented F multi-frequency antenna Download PDFInfo
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- CN1933240B CN1933240B CN2006101170429A CN200610117042A CN1933240B CN 1933240 B CN1933240 B CN 1933240B CN 2006101170429 A CN2006101170429 A CN 2006101170429A CN 200610117042 A CN200610117042 A CN 200610117042A CN 1933240 B CN1933240 B CN 1933240B
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- radiating element
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Abstract
A plane inverse F multi-frequency antenna including: a radiation unit, a medium plate, an earth plate and a feed port arrayed downward from the top, in which, said feeding port is placed under the metal earth plate and closing to it, said radiation unit is composed of a rectangle metal thin base plate and a thin plate with 90 deg. angle and connected to it, the center of the base plate is opened with two rectangle windows, one side of the plate with 90deg. angle is connected with the edge of the rectangular window closing to the edge of the base plate and vertical to the metal thin base plate, the other side of the plate with 90deg. angle is parallel to the thin base plate.
Description
Technical field
What the present invention relates to is a kind of antenna that is used for communication technical field, especially a kind of planar invented F multi-frequency antenna.
Background technology
In the prior art, generally adopt single whip antenna or helical antenna at communication terminal, size is bigger.Though improved afterwards inverse-F antenna has reduced size, only is used for single frequency operation.
Find through literature search prior art, people such as RongLin Li were at " antenna and transmission " the 52nd volume the 2nd phase (IEEE TRANSACTI0NS 0N ANTENNAS AND PROPAGATION in 2004, VOL.52, NO.2, FEBRUARY 2004) publish an article " reducing the analysis and the research of the folding short paster antenna of size " (Development and Analysis of a Folded Shorted-Patch Antenna with ReducedSize), a kind of improved planar inverted-F antenna has been proposed, by at the planar inverted-F antenna top and the open circuit side load down L shaped paster and realize two-frequency operation.But increased the height of antenna.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art and defective, a kind of planar invented F multi-frequency antenna is provided.It is compared with planar inverted-F antenna, do not increase additional volumes, and can realize 3 work frequently, especially can be implemented in three frequency range work that present 3G requires.
The present invention is achieved by the following technical solutions, the present invention includes: radiating element, dielectric-slab, ground plate and feed port.
Described radiating element is made of the thin substrate of a rectangular metal and a coupled thin plate that has 90 ° of bendings, the thin substrate center of rectangular metal has two rectangular windows, a side that has the thin plate of 90 ° of bendings links to each other with the limit of one of them rectangular window near metal foil substrate edges place, and vertical with the thin substrate of rectangular metal, it is parallel that another side and the rectangular metal that has a thin plate of 90 ° of bendings approaches substrate.
Adjacent with it below the thin substrate of the rectangular metal of described radiating element is a rectangle dielectric-slab, and adjacent with it below the dielectric-slab is a metal ground plate.
Described feed port is positioned at below the metal ground plate, and adjacent metal ground plate, and be arranged in rectangular window that radiating element links to each other with the thin plate that has 90 ° of bendings below, the feed port inner wire links to each other with the parallel surface of the thin plate that has 90 ° of bendings after passing ground plate and dielectric-slab, and the feed port outer conductor links to each other with ground plate.
The present invention can pass through feed port direct feed, then electromagnetic signal is launched.The present invention equally also can be used for electromagnetic signal and receives.
The present invention and prior art contrast, and its effect is actively with tangible.The present invention is because open rectangular window in antenna radiation unit, and 90 ° of bendings of connecting band curved surface, thus can be in different positions and the orientation reach different resonance lengths, finally realized multiple-frequency operation.
Description of drawings
Fig. 1 is a kind of planar invented F multi-frequency antenna three-dimensional structure of the present invention schematic diagram.
Fig. 2 is the end view of a kind of planar invented F multi-frequency antenna of the present invention.
Embodiment
As shown in Figure 1 and Figure 2, present embodiment comprises: radiating element 1, dielectric-slab 2, ground plate 3 and feed port 4.Described radiating element 1, dielectric-slab 2 and ground plate 3 are closely arranged from top to bottom successively.
Described radiating element 1 is made of the thin substrate of a rectangular metal and a coupled thin plate that has 90 ° of bendings, the thin substrate center of rectangular metal has two rectangular windows, a side that has the thin plate of 90 ° of bendings links to each other with the limit of one of them rectangular window near metal foil substrate edges place, and vertical with the thin substrate of rectangular metal, it is parallel that another side and the rectangular metal that has a thin plate of 90 ° of bendings approaches substrate.
Adjacent with it below the thin substrate of the rectangular metal of described radiating element 1 is a rectangle dielectric-slab 2, and adjacent with it below the dielectric-slab 2 is a metal ground plate 3.
Described feed port 4 is positioned at below the metal ground plate 3, and adjacent metal ground plate 3, and be arranged in rectangular window that radiating element 1 links to each other with the thin plate that has 90 ° of bendings below, the inner wire of feed port 4 passes the parallel surface that has the thin plate of 90 ° of bendings in ground plate 3 and dielectric-slab 2 backs and the radiating element 1 and links to each other, and feed port 4 outer conductors link to each other with ground plate.
Present embodiment antenna full-size is: 74mm * 74mm * 15mm, and correlated performance parameter distributions result is: the S parameter of antenna is at the curve of frequency domain, and near 800MHz, 1900MHz and 2020MHz, the S parameter is all less than-10dB.
Claims (2)
1. planar invented F multi-frequency antenna, comprise: radiating element (1), dielectric-slab (2), ground plate (3) and feed port (4), it is characterized in that: described radiating element (1), dielectric-slab (2) and ground plate (3) are closely arranged from top to bottom successively, described feed port (4) is positioned at below the metal ground plate (3), and adjacent metal ground plate (3), described radiating element (1) is made of the thin substrate of a rectangular metal and a coupled thin plate that has 90 ° of bendings, the thin substrate center of rectangular metal has two rectangular windows, a side that has the thin plate of 90 ° of bendings links to each other with the limit of one of them rectangular window near metal foil substrate edges place, and vertical with the thin substrate of rectangular metal, it is parallel that another side and the rectangular metal that has a thin plate of 90 ° of bendings approaches substrate;
Described feed port (4) be arranged in rectangular window that radiating element (1) links to each other with the thin plate that has 90 ° of bendings below, the inner wire of feed port (4) passes the parallel surface that has the thin plate of 90 ° of bendings in ground plate (3) and dielectric-slab (2) back and the radiating element (1) and links to each other, and feed port (4) outer conductor links to each other with ground plate (3).
2. a kind of planar invented F multi-frequency antenna as claimed in claim 1 is characterized in that, adjacent with it below the thin substrate of the rectangular metal of described radiating element (1) is a rectangle dielectric-slab (2), and adjacent with it below the dielectric-slab (2) is metal ground plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101170429A CN1933240B (en) | 2006-10-12 | 2006-10-12 | Planar invented F multi-frequency antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101170429A CN1933240B (en) | 2006-10-12 | 2006-10-12 | Planar invented F multi-frequency antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1933240A CN1933240A (en) | 2007-03-21 |
| CN1933240B true CN1933240B (en) | 2010-07-28 |
Family
ID=37878937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101170429A Expired - Fee Related CN1933240B (en) | 2006-10-12 | 2006-10-12 | Planar invented F multi-frequency antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1933240B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI120427B (en) * | 2007-08-30 | 2009-10-15 | Pulse Finland Oy | Adjustable multiband antenna |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6002367A (en) * | 1996-05-17 | 1999-12-14 | Allgon Ab | Planar antenna device |
| CN1391713A (en) * | 1999-09-03 | 2003-01-15 | 艾利森电话股份有限公司 | Antenna |
| US20030107518A1 (en) * | 2001-12-12 | 2003-06-12 | Li Ronglin | Folded shorted patch antenna |
| CN1669181A (en) * | 2002-07-15 | 2005-09-14 | 凯瑟雷恩工厂两合公司 | Low-height dual or multi-band antenna, in particular for motor vehicles |
-
2006
- 2006-10-12 CN CN2006101170429A patent/CN1933240B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6002367A (en) * | 1996-05-17 | 1999-12-14 | Allgon Ab | Planar antenna device |
| CN1391713A (en) * | 1999-09-03 | 2003-01-15 | 艾利森电话股份有限公司 | Antenna |
| US20030107518A1 (en) * | 2001-12-12 | 2003-06-12 | Li Ronglin | Folded shorted patch antenna |
| CN1669181A (en) * | 2002-07-15 | 2005-09-14 | 凯瑟雷恩工厂两合公司 | Low-height dual or multi-band antenna, in particular for motor vehicles |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1933240A (en) | 2007-03-21 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100728 Termination date: 20201012 |