CN201207428Y - Dual-frequency antenna - Google Patents
Dual-frequency antenna Download PDFInfo
- Publication number
- CN201207428Y CN201207428Y CNU2008200480193U CN200820048019U CN201207428Y CN 201207428 Y CN201207428 Y CN 201207428Y CN U2008200480193 U CNU2008200480193 U CN U2008200480193U CN 200820048019 U CN200820048019 U CN 200820048019U CN 201207428 Y CN201207428 Y CN 201207428Y
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- antenna
- location division
- dual
- antenna part
- lateral margin
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- Expired - Fee Related
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Abstract
本实用新型公开了一种双频天线，其包括接地部、耦合部、连接部、天线部、接地点及馈入点。该接地部呈长条状，其具有一侧缘，该侧缘两端分别朝同一侧延伸有相互平行设置的第一、二定位部。耦合部是自第一定位部的一侧沿朝向第二定位部延伸而成。连接部是自第二定位部的一侧沿朝向第一定位部延伸而成。天线部是自连接部一侧沿朝向第一定位部延伸而成，天线部具有朝向第一定位部延伸而成且相互平行设置的第一天线部及第二天线部。本实用新型双频天线结构简单、占用空间少，且可收发无线局域网络通讯协议所包括的IEEE802.11a和IEEE802.11b涵盖频段范围的电磁波。
The utility model discloses a dual-frequency antenna, which includes a grounding portion, a coupling portion, a connecting portion, an antenna portion, a grounding point and a feeding point. The grounding portion is in the shape of an elongated strip, and has a side edge. The two ends of the side edge respectively extend toward the same side to form a first and a second positioning portion arranged in parallel with each other. The coupling portion is formed by extending from a side edge of the first positioning portion toward the second positioning portion. The connecting portion is formed by extending from a side edge of the second positioning portion toward the first positioning portion. The antenna portion is formed by extending from a side edge of the connecting portion toward the first positioning portion, and the antenna portion includes a first antenna portion and a second antenna portion extending toward the first positioning portion and arranged in parallel with each other. The dual-frequency antenna of the utility model has a simple structure, occupies little space, and can transmit and receive electromagnetic waves in the frequency band range covered by IEEE802.11a and IEEE802.11b included in the wireless local area network communication protocol.
Description
Technical field
The utility model relates to a kind of antenna, relates in particular to the dual-band antenna that a kind of LAN is used.
Background technology
The WLAN communications protocol mainly comprises IEEE802.11a and two kinds of standards of IEEE802.11b, and wherein the working frequency range of IEEE802.11a is contained 5.1～5.8GHz, and the working frequency range of IEEE802.11b is mainly 2.4～2.5GHz.
In order to make the communication apparatus can compatible IEEE802.11a and two kinds of standards of IEEE802.11b, need to use double frequency or multifrequency antenna, (Planar Inverted-FAntenna PIFA) is exactly mobile device a kind of miniaturization built-in antenna commonly used to planar inverted F-shape antenna.But because frequency bandwidth, yield value and the radiation efficiency of antenna all are directly proportional with its volume, with antenna planeization and miniaturization, its frequency bandwidth and radiation efficiency all can reduce, therefore, the dual-band antenna that planar inverted F-shape antenna constitutes, its working band often can't cover the working frequency range scope of IEEE802.11a and IEEE802.11b simultaneously.
A kind of method that addresses the above problem is the mode that adopts two or more antenna to combine, and can consult Chinese patent and announce the dual-band antenna shown in No. 2600925, and this dual-band antenna comprises planar inverted F-shape antenna and loop aerial simultaneously.Owing to adopt such two kinds of different antenna structures, the adjustable scope of this dual-band antenna working frequency range is bigger, can cover the working frequency range scope of IEEE802.11a and IEEE802.11b simultaneously, yet this kind Antenna Design complexity, volume is big, it is bigger to take up room, and is unfavorable for the needs of electronic product towards the miniaturization development.
The utility model content
The purpose of this utility model is to provide a kind of simple in structure and little dual-band antenna that takes up room at defective and deficiency that above-mentioned prior art exists.
For achieving the above object, dual-band antenna provided by the utility model comprises a grounding parts, a coupling part, a junction and an antenna part.Described grounding parts is strip, and it has a lateral margin, and these lateral margin two ends are respectively towards bending extending first location division and second location division that is arranged in parallel, the same side; Coupling part is that the side from first location division forms along extending towards second location division; Connecting portion is that the side from second location division forms along extending towards the first location division direction; Antenna part is to form along extending towards first location division from connecting portion one side, and this antenna part has first antenna part and second antenna part that extends towards first location division, and first antenna part and second antenna part are arranged in parallel.
As mentioned above, the utility model Double-frequency antenna structure is simple, occupy little space, adapted to light, thin, short, the little day by day development trend of electronic product, but and the included IEEE802.11a of transmitting/receiving wireless LAN communications protocol and the IEEE802.11b electromagnetic wave of containing band limits.
Description of drawings
Fig. 1 is the stereogram of the utility model dual-band antenna.
Each description of reference numerals is as follows among the figure:
Dual-band antenna 1 grounding parts 10
Lateral margin 11 first location divisions 12
Second location division, 13 location holes 14
Earth point 16 connecting portions 17
Inboard along 18 load points 19
Coupling part 20 antenna parts 30
First antenna part, 31 second antenna parts 32
Embodiment
By describing technology contents of the present utility model, structural feature in detail, realized purpose and effect, give explanation below in conjunction with execution mode and conjunction with figs. are detailed.
See also Fig. 1, the utility model dual-band antenna 1 has the grounding parts 10 of a strip, and this grounding parts 10 has a lateral margin 11.One first location division 12 and one second location division 13 are extended in vertical respectively grounding parts 10 bendings in the two ends of this lateral margin 11.The all rectangular shape in first location division 12 and second location division 13, and all be positioned at the same side of grounding parts 10.All offer a location hole 14 on first and second location division 12,13.One side of first location division 12 is along a coupling part 20 that is strip is arranged towards second location division, 13 vertical extent.
Be provided with an earth point 16 at contiguous positioning hole corresponding 14 places on second location division 13, this second location division 13 has an inboard along 18, towards first location division, 12 vertical extent a junction 17 is arranged along 18 ends away from grounding parts 10 from this inboard, this connecting portion 17 is to first location division, 12 directions and be extended with antenna part 30 to grounding parts 10 directions simultaneously.Antenna part 30 has first antenna part 31 and second antenna part 32 that extends towards first location division 12.This first antenna part 31 and second antenna part 32 are arranged in parallel and all are strip.Be formed with a separate slot 33 between first antenna part 31 and second antenna part 32.A distance at interval between antenna part 30 and second location division 13 and the lateral margin 11 and between coupling part 20 and the lateral margin 11.Antenna part 30 in contiguous second location division 13 and contiguous lateral margin 11 places be provided with a load point 19.
The utility model dual-band antenna 1 is fixed on the electronic product by location hole 14, when this dual-band antenna 1 was used for communication, the antenna part between load point 19 to first antenna parts 31 and the electromagnetic wave of 2.4GHz～2.5GHz frequency range resonated and the electromagnetic wave signal of transmitting-receiving 2.4GHz～2.5GHz frequency range.The antenna part between load point 19 to second antenna parts 32 and the electromagnetic wave of 4.9GHz～5.2GHz frequency range resonate and the electromagnetic wave signal of transmitting-receiving 4.9GHz～5.2GHz frequency range.Produce coupling effect between the coupling part 20 and first antenna part 31, and can receive and dispatch the electromagnetic wave signal of 4.9GHz～5.8GHz frequency range.Produce resonance between the coupling part 20 and second antenna part 32, the electromagnetic wave frequency range that resonates out is overlapped, and makes frequency range increase, and the gain of dual-band antenna 1 receiving and transmitting signal is got a promotion.
In sum, the utility model dual-band antenna 1 is by first antenna part 31, second antenna part 32 and coupling part 20 electromagnetic wave signal with transmitting-receiving 2.4GHz～2.5GHz frequency range and 4.9GHz～5.8GHz frequency range, and it is simple in structure, occupy little space, adapted to light, thin, short, the little day by day development trend of electronic product, but and the electromagnetic wave band limits contained of the included IEEE802.11a of transmitting/receiving wireless LAN communications protocol and IEEE802.11b.
Claims (6)
1. dual-band antenna, it is characterized in that: comprise a grounding parts, a coupling part, a junction and an antenna part, described grounding parts has a lateral margin, and the lateral margin two ends are respectively towards bending extending first location division and second location division that is arranged in parallel, the same side; Coupling part is that the side from first location division forms along extending towards second location division; Connecting portion is that the side from second location division forms along extending towards the first location division direction; Antenna part is to form along extending towards first location division from connecting portion one side, and this antenna part has first antenna part and second antenna part that extends towards first location division, and first antenna part and second antenna part are arranged in parallel.
2. dual-band antenna as claimed in claim 1 is characterized in that: described antenna part is provided with a load point at the lateral margin of contiguous grounding parts and away from the coupling part place.
3. dual-band antenna as claimed in claim 1 is characterized in that: between described first antenna part and second antenna part separate slot is arranged, the lateral margin of coupling part and antenna part and grounding parts keeps at a certain distance away.
4. dual-band antenna as claimed in claim 1 is characterized in that: the lateral margin of described coupling part, first antenna part and second antenna part and grounding parts be arranged in parallel mutually.
5. dual-band antenna as claimed in claim 1 is characterized in that: all offer a fixing hole on described first location division, second location division.
6. dual-band antenna as claimed in claim 5 is characterized in that: described second location division is provided with an earth point at contiguous this fixing hole place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200480193U CN201207428Y (en) | 2008-05-16 | 2008-05-16 | Dual-frequency antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200480193U CN201207428Y (en) | 2008-05-16 | 2008-05-16 | Dual-frequency antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201207428Y true CN201207428Y (en) | 2009-03-11 |
Family
ID=40466485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200480193U Expired - Fee Related CN201207428Y (en) | 2008-05-16 | 2008-05-16 | Dual-frequency antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201207428Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102044745A (en) * | 2009-10-21 | 2011-05-04 | 广达电脑股份有限公司 | Dual-frequency antenna and antenna device with same |
| US8659479B2 (en) | 2009-10-08 | 2014-02-25 | Quanta Computer, Inc. | Dual-band antenna and antenna device having the same |
-
2008
- 2008-05-16 CN CNU2008200480193U patent/CN201207428Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8659479B2 (en) | 2009-10-08 | 2014-02-25 | Quanta Computer, Inc. | Dual-band antenna and antenna device having the same |
| CN102044745A (en) * | 2009-10-21 | 2011-05-04 | 广达电脑股份有限公司 | Dual-frequency antenna and antenna device with same |
| CN102044745B (en) * | 2009-10-21 | 2015-07-01 | 广达电脑股份有限公司 | Dual-frequency antenna and antenna device with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090311 Termination date: 20120516 |