CN201247820Y - Double-frequency antenna - Google Patents
Double-frequency antenna Download PDFInfo
- Publication number
- CN201247820Y CN201247820Y CNU2008200514560U CN200820051456U CN201247820Y CN 201247820 Y CN201247820 Y CN 201247820Y CN U2008200514560 U CNU2008200514560 U CN U2008200514560U CN 200820051456 U CN200820051456 U CN 200820051456U CN 201247820 Y CN201247820 Y CN 201247820Y
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- CN
- China
- Prior art keywords
- radiation
- feeding portion
- department
- feed
- horizontal stripe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The utility model discloses a two-frequency antenna which comprises a grounded part, a feed-in part, a connection part, a first radiation part and a second radiation part, wherein the feed-in part is provided with a first feed-in part and a second feed-in part; the connection part is connected between the grounded part and the first feed-in part; the first radiation part is provided with a first vertical radiation strip which is perpendicular to the upper end edge of the first feed-in part and a first horizontal radiation strip which is vertically extended out from the end of the first radiation part; and the second radiation part is provided with a second horizontal radiation strip which is vertically backwards extended out from the end edge of the first feed-in part, a second vertical radiation strip and a third horizontal radiation strip. The two-frequency antenna has simple structure , occupies little space and can receive and transmit electromagnetic waves in band limits covered by the wireless LAN protocol IEEE802.11a and IEEE802.11b.
Description
Technical field
The utility model relates to a kind of antenna, relates in particular to the dual-band antenna that a kind of WLAN is used.
Background technology
Electronic products such as notebook computer need to do various settings and wiring often to carry out transfer of data with other data equipment, utilize Wireless transmission mode then can simplify the trouble of many settings and wiring.
The antenna of use for electronic products such as general notebook computer roughly has two kinds of plane inverse F type plate aerial and unipole antennas.But because frequency bandwidth, yield value and the radiation efficiency of plane inverse F type plate aerial all are directly proportional with volume, with antenna planeization and miniaturization, its frequency bandwidth and radiation efficiency all can reduce, therefore, the dual-band antenna that the plane inverse F type plate aerial is constituted, under the situation of complanation and miniaturization, its working band is often narrower, can't cover working frequency range 5.2～5.8GHz and the 2.4～2.5GHz of IEEE802.11a and IEEE802.11b simultaneously.Though and unipole antenna has bigger frequency band, must possess bigger grounding parts in use, so can cause sizable inconvenience and restriction with the limited usage space of electronic products such as notebook computer.
The utility model content
The purpose of this utility model is defective and the not enough network dual-band antenna that a kind of frequency band broad is provided and takes up room less that exists at above-mentioned prior art.
For achieving the above object, dual-band antenna provided by the utility model comprises a grounding parts, a feeding portion, a junction, one first Department of Radiation and one second Department of Radiation, second feeding portion that the end that feeding portion has one first feeding portion and an ora terminalis on first feeding portion vertically extends to a side; Connecting portion is connected between the grounding parts and first feeding portion; First Department of Radiation has the first radiation taeniae and of ora terminalis on vertical first feeding portion from the terminal first radiation horizontal stripe that vertically extends to a side of first Department of Radiation; Second Department of Radiation has the second radiation taeniae that second a radiation horizontal stripe that vertically extends to a side from an ora terminalis of first feeding portion, extends vertically upward from an end of the last ora terminalis of the second radiation horizontal stripe and from the second radiation taeniae end the 3rd radiation horizontal stripe of extension vertically downward that vertically extends back then.
As mentioned above, the utility model Double-frequency antenna structure is simple, occupy little space, and the frequency band broad, but the electromagnetic wave band limits that transmitting/receiving wireless LAN communications protocol IEEE802.11a and IEEE802.11b are contained.
Description of drawings
Fig. 1 is the stereogram of a kind of embodiment of the utility model dual-band antenna.
Fig. 2 is the stereogram of another angle of dual-band antenna shown in Figure 1.
Each description of reference numerals is as follows among the figure:
Dual-band antenna 1 grounding parts 11
Second feeding portion, 122 connecting portions 13
First Department of Radiation, 14 first radiation taeniaes 141
The first radiation horizontal stripe, 142 second Departments of Radiation 15
The second radiation horizontal stripe, 151 second radiation taeniaes 152
The 3rd radiation horizontal stripe 153
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 and Fig. 2, the utility model dual-band antenna 1 has the feeding portion 12 that the tabular grounding parts of a rectangle 11 and is arranged at grounding parts 11 1 sides, and this feeding portion 12 has second feeding portion 122 of first the feeding portion 121 and rectangle strip that an end of ora terminalis vertically extends back on first feeding portion 121 of a rectangle strip.The middle part of 121 times ora terminalis of first feeding portion recedes and is extended with a connecting portion 13 that is connected with the rear end of the following ora terminalis of grounding parts 11.The last ora terminalis of first feeding portion 121 has extended upward one first Department of Radiation 14 near the right-hand member place, and this first Department of Radiation 14 has first a radiation horizontal stripe 142 that vertically extends back from the first radiation taeniae, 141 ends perpendicular to the first radiation taeniae 141 of ora terminalis on first feeding portion 121 and.The second radiation horizontal stripe 151, one that be arranged in parallel with the first radiation horizontal stripe 142 that the right-hand member marginal lappet of first feeding portion 121 one second Department of Radiation 15 that directly extended back, this second Department of Radiation 15 have that a right-hand member marginal lappet from first feeding portion 121 directly extends back from the straight upwardly extending second radiation taeniae 152 and that be arranged in parallel with the first radiation taeniae 141 of the upper end marginal lappet of the second radiation horizontal stripe, 151 ends from vertical the 3rd radiation horizontal stripe 153 of extension vertically downward that extends back again of the second radiation taeniae, 152 ends.
The utility model dual-band antenna 1 uses when being used for communication on electronic product, and first Department of Radiation 14 can be received and dispatched the electromagnetic wave signal of frequency range that IEEE802.11a is contained with the electromagnetic wave resonance of 4.9GHz～5.8GHz frequency range.Second Department of Radiation 15 can be received and dispatched the electromagnetic wave signal of frequency range that IEEE802.11b is contained with the electromagnetic wave resonance of 2.4GHz～2.5GHz frequency range.The second radiation taeniae 152 of second Department of Radiation 15 of the utility model dual-band antenna 1 can avoid the secondary resonance of second Department of Radiation 15 to disturb the mode effect of first Department of Radiation 14, thereby 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 the electromagnetic wave signal of first Department of Radiation 14, second Department of Radiation, 15 transmitting-receiving 4.9GHz～5.8GHz and 2.4GHz～2.5GHz frequency range, the frequency band broad, can cover the electromagnetic wave band limits that WLAN communications protocol IEEE802.11a and IEEE802.11b are contained, and it is simple in structure, occupy little space.
Claims (3)
1. dual-band antenna, it is characterized in that: comprise a grounding parts, a feeding portion, a junction, one first Department of Radiation and one second Department of Radiation, second feeding portion that the end that feeding portion has one first feeding portion and an ora terminalis on first feeding portion vertically extends to a side; Connecting portion is connected between the grounding parts and first feeding portion; First Department of Radiation have one perpendicular to the first radiation taeniae of ora terminalis on first feeding portion and from the terminal first radiation horizontal stripe that vertically extends of first Department of Radiation to a side; Second Department of Radiation has the second radiation taeniae that second a radiation horizontal stripe that vertically extends to a side from an ora terminalis of first feeding portion, extends vertically upward from an end of the last ora terminalis of the second radiation horizontal stripe and from the second radiation taeniae end the 3rd radiation horizontal stripe of extension vertically downward that vertically extends back then.
2. dual-band antenna as claimed in claim 1 is characterized in that: described second radiation taeniae and the described first radiation taeniae be arranged in parallel, and the second radiation horizontal stripe and the described first radiation horizontal stripe be arranged in parallel.
3. dual-band antenna as claimed in claim 1 is characterized in that: described connecting portion is that the middle part of ora terminalis recedes to extend and forms under first feeding portion, and connecting portion is connected with the following ora terminalis of grounding parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200514560U CN201247820Y (en) | 2008-07-25 | 2008-07-25 | Double-frequency antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200514560U CN201247820Y (en) | 2008-07-25 | 2008-07-25 | Double-frequency antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201247820Y true CN201247820Y (en) | 2009-05-27 |
Family
ID=40731646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200514560U Expired - Fee Related CN201247820Y (en) | 2008-07-25 | 2008-07-25 | Double-frequency antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201247820Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163764A (en) * | 2010-02-23 | 2011-08-24 | 智易科技股份有限公司 | Small-sized three-dimensional antenna |
-
2008
- 2008-07-25 CN CNU2008200514560U patent/CN201247820Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163764A (en) * | 2010-02-23 | 2011-08-24 | 智易科技股份有限公司 | Small-sized three-dimensional antenna |
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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: 20090527 Termination date: 20110725 |