CN101399394A - Multi-frequency antenna - Google Patents
Multi-frequency antenna Download PDFInfo
- Publication number
- CN101399394A CN101399394A CNA200710133746XA CN200710133746A CN101399394A CN 101399394 A CN101399394 A CN 101399394A CN A200710133746X A CNA200710133746X A CN A200710133746XA CN 200710133746 A CN200710133746 A CN 200710133746A CN 101399394 A CN101399394 A CN 101399394A
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- sheet metal
- radiation
- grounding parts
- radiation sheet
- multifrequency antenna
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses a multi-frequency antenna. The antenna comprises a grounding part; a connecting sheet metal which extends from the grounding part and forms a slit with the grounding part; a conductive sheet metal which extends from the grounding part; a first radiation sheet metal which is connected with the conductive sheet metal and extends along a first direction; a second radiation sheet metal which is connected with the first radiation sheet metal and extends along a second direction opposite to the first direction; and a third radiation sheet metal which extends from one end of the connecting sheet metal, wherein, the conductive sheet metal is wider than the first radiation sheet metal and the third radiation sheet metal, and the first radiation sheet metal is wider than the second radiation sheet metal.
Description
[technical field]
The invention relates to a kind of multifrequency antenna, especially refer to a kind of multifrequency antenna that is used for mobile electronic device.
[background technology]
Along with the progress of electronic technology, establish wireless transmitter in order to wireless signal transmission in the increasing electronic equipment, so aerial integration wherein is a kind of trend.In the modern wireless telecommunications, multiple wireless communication standard is also deposited, and making needs to integrate a plurality of antennas to adapt to the signals in different frequency bands transmitting-receiving under the multiple transmission standard in the electronic equipment.Because the trend of modern electronic equipment miniaturization, especially the inner space of mobile electronic equipment is very limited, industry trends towards a plurality of aerial integrations that are used for different frequency bands are become an antenna at present, and to reduce antenna volume, the inner space that makes it account for mobile electronic device is littler.In the prior art, Chinese patent discloses to have disclosed for CN1917284 number and a kind ofly will be used for first antenna of wireless wide area network and second aerial integration antenna structure together of WLAN (wireless local area network).The working band of its first antenna is different with the working band of second antenna, do not have overlapping, so first antenna and two separate antennas of second aerial system, by the position relation of two antennas being set cleverly, making the operate as normal that can not influence each antenna that interferes with each other of two antennas being incorporated into together.But the frequency band that some various criterions are arranged has mutual superposed part, as WLAN (wireless local area network) (WLAN, 2.4GHz/5GHz) and wireless MAN (WiMAX, 2.3-2.4GHz, 2.5-2.7GHz, 3.3-3.8GHz), if can cause waste on the space with independent two antennas, therefore we need a kind of scheme that will be used for aerial integration to an antenna of two aerial network frequency bands, thereby more save the space.
[summary of the invention]
The object of the invention is to provide a kind of multifrequency antenna, and it utilizes the antenna of the single output of a single input to work in the frequency band of two transmission standards simultaneously.
For achieving the above object, the present invention adopts following technical scheme: a kind of multifrequency antenna comprises grounding parts, extend and form the sheet metal that is connected of a slit from grounding parts with grounding parts, from the extended conductive metal sheet of connecting portion, first radiation sheet metal that is connected with conductive metal sheet, extends along first direction, with second radiation sheet metal of the second direction extension that first radiation sheet metal connects, the edge is opposite with first direction, and connect extended the 3rd radiation sheet metal of sheet metal one end certainly; Wherein conductive metal sheet is wideer than first radiation sheet metal and the 3rd radiation sheet metal, and first radiation sheet metal is wideer than second radiation sheet metal.
Compared with prior art, multifrequency antenna of the present invention has the following advantages: by the multifrequency antenna of the single output of single input, realization can be in multiple network the purpose of receiving and transmitting signal, saved the shared space of antenna, make antenna reach the transmitting-receiving of signal under multiple standards by simple configuration.
[description of drawings]
Fig. 1 is the stereogram of multifrequency antenna of the present invention.
Fig. 2 is the stereogram of another angle of Fig. 1 of the present invention.
Voltage standing wave ratio figure when Fig. 3 works for multifrequency antenna of the present invention.
[embodiment]
Multifrequency antenna of the present invention system is installed in the electronic equipment can transmitting/receiving wireless local area network (LAN) (WLAN) and the signal of wireless MAN (WiMAX).The stereogram that is respectively preferred embodiment different angles of the present invention illustrated in figures 1 and 2.Multifrequency antenna 1 is installed on notebook computer (not icon) among this embodiment, and it comprises grounding parts 300, from grounding parts 300 extended connection sheet metals 200, connect the extended vertically upward conductive metal sheet 140 of sheet metal 200, first radiation sheet metal 110, second radiation sheet metal 120 that vertically extend from conducting metal sheet 140 and connect extended the 3rd radiation sheet metal 130 of sheet metal 200 1 ends certainly certainly.
Connect sheet metal 200 and extend, and be positioned at same plane with grounding parts 300 from the second side 302 of grounding parts 300 and the intersection of side arm 303.Connect sheet metal 200 comprise with grounding parts 300 form first section 201 of certain angles with parallel with grounding parts 300 second section 202, the configuration like this that connects sheet metal 200 makes and connecting the trapezoidal slit 600 of formation between sheet metal 200 and the grounding parts 300 one, and the distance of second section 202 and grounding parts 300 first sides 301 is no more than the second side 302 of grounding parts 300 and the ultimate range between the first side 301.The end and the grounding parts 300 that connect sheet metal 200 are spaced a distance.
Connect the end formation one feedback point F that sheet metal 200 is connected with the 3rd radiation sheet metal 130, be used to connect the inner wire of feeder line (not shown).Has an earth point G on the grounding parts 300 in order to connect the outer conductor of feeder line.
Wherein the width of conductive metal sheet 140 is greater than the width of first radiation sheet metal 110 and second radiation sheet metal 120; The width of first radiation sheet metal 110 and second radiation sheet metal 120 is all greater than the width of the 3rd radiation sheet metal.Because the wider width of conductive metal sheet 140, the variation in the path of electric current process is more, the work bandwidth of first and second radiation sheet metal 110 can meet or exceed 400MHz, wherein first radiation sheet metal 110 is used to receive and dispatch the high-frequency signal of 4.9-5.8GHz, second radiation sheet metal 120 is used to receive and dispatch the low frequency signal of 2.3-2.7GHz, and the 3rd radiation sheet metal 130 is used to receive and dispatch the signal of 3.3-3.8GHz.Figure 3 shows that the voltage standing wave ratio figure of this multifrequency antenna 1.Therefore this multifrequency antenna 1 can be used for wlan network and WiMAX network.
Claims (10)
1. multifrequency antenna, it comprises: grounding parts, extend and form the sheet metal that is connected of a slit from grounding parts with grounding parts, from the extended conductive metal sheet of connecting portion, first radiation sheet metal that connects with conductive metal sheet and extend along first direction and is connected with first radiation sheet metal and along second radiation sheet metal of the second direction extension opposite with first direction, it is characterized in that: multifrequency antenna also comprises from connecting extended the 3rd radiation sheet metal of sheet metal one end, described conductive metal sheet is wideer than first radiation sheet metal and the 3rd radiation sheet metal, and first radiation sheet metal is wideer than second radiation sheet metal.
2. multifrequency antenna as claimed in claim 1 is characterized in that: described first radiation sheet metal, the 3rd sheet metal and conductive metal sheet are positioned at same plane and first radiation sheet metal perpendicular to conductive metal sheet.
3. multifrequency antenna as claimed in claim 2, it is characterized in that: described the 3rd radiation sheet metal is L-shaped, it comprises first radiation arm and with grounding parts parallel second radiation arm vertical with grounding parts, and wherein the vertical range between second radiation arm and the plane, grounding parts place is less than the distance between second radiation sheet metal and the plane, grounding parts place.
4. multifrequency antenna as claimed in claim 1 is characterized in that: described second radiation sheet metal is perpendicular to plane, the first radiation sheet metal place, and comprises from first radiation sheet metal extended trapezoidal and from trapezoidal extended rectangular portion.
5. multifrequency antenna as claimed in claim 1 is characterized in that: the described grounding parts and second radiation sheet metal are parallel to each other, and the two is positioned at the homonymy on first radiation sheet metal and plane, conductive metal sheet place.
6. multifrequency antenna as claimed in claim 1, it is characterized in that: described connection sheet metal extends with grounding parts from grounding parts and is positioned at same plane, and comprise with grounding parts form first section of certain angle with extend second section parallel with grounding parts from first section.
7. multifrequency antenna as claimed in claim 6 is characterized in that: described conductive metal sheet extends from connecting second section of sheet metal, and the 3rd sheet metal also extends from second section, and is spaced a distance between conductive metal sheet and the 3rd sheet metal.
8. multifrequency antenna as claimed in claim 6, it is characterized in that: described grounding parts comprises that a straight first side and is Z-shaped second side, and the distance of described second section and grounding parts first side is no more than the ultimate range between grounding parts second side and the first side.
9. multifrequency antenna as claimed in claim 8 is characterized in that: the end of described connection sheet metal forms feedback point in order to connect feeder line.
10. multifrequency antenna as claimed in claim 1 is characterized in that: described first radiation sheet metal works in the 4.9-5.8GHz frequency band, and second radiation sheet metal works in the 2.3-2.7GHz frequency band, and the 3rd radiation sheet metal works in the 3.3-3.8GHz frequency band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710133746XA CN101399394B (en) | 2007-09-29 | 2007-09-29 | Multi-frequency antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710133746XA CN101399394B (en) | 2007-09-29 | 2007-09-29 | Multi-frequency antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101399394A true CN101399394A (en) | 2009-04-01 |
| CN101399394B CN101399394B (en) | 2012-11-28 |
Family
ID=40517750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710133746XA Expired - Fee Related CN101399394B (en) | 2007-09-29 | 2007-09-29 | Multi-frequency antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101399394B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101853982B (en) * | 2009-04-03 | 2013-11-06 | 深圳富泰宏精密工业有限公司 | Multifrequency antenna and wireless communication device applying same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1917284B (en) * | 2005-08-19 | 2011-05-25 | 启碁科技股份有限公司 | Notebook computer and its antenna structure |
-
2007
- 2007-09-29 CN CN200710133746XA patent/CN101399394B/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101853982B (en) * | 2009-04-03 | 2013-11-06 | 深圳富泰宏精密工业有限公司 | Multifrequency antenna and wireless communication device applying same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101399394B (en) | 2012-11-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20121128 Termination date: 20170929 |