CN101316006A - Multi-frequency antenna - Google Patents
Multi-frequency antenna Download PDFInfo
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- CN101316006A CN101316006A CNA2007100227602A CN200710022760A CN101316006A CN 101316006 A CN101316006 A CN 101316006A CN A2007100227602 A CNA2007100227602 A CN A2007100227602A CN 200710022760 A CN200710022760 A CN 200710022760A CN 101316006 A CN101316006 A CN 101316006A
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- grounding parts
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- radiant panel
- radiation fin
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Abstract
The invention discloses a multi-band antenna, comprising a grounding part, a pair of installation parts, a radiation part which is arranged intermittently with the grounding part, a connecting part used for connecting the radiation part with the grounding part and a parasitic radiation part which extends out of the grounding part; the radiation part and the parasitic radiation works in a wireless personal local area network; the radiation part comprises a first radiation sheet and a second radiation sheet which are arranged in the same line. The multi-band antenna of the invention has two radiation bands, high frequency and wide radiation band.
Description
[technical field]
The present invention relates to a kind of multifrequency antenna, especially refer to a kind of multifrequency broad-band antenna that is used for electronic equipment.
[background technology]
WPAN (Wireless Personal Area Network, wireless personal local area network) is a kind of PAN (Personal Area Network) that adopts wireless connections.It is used to as mobile phone, notebook computer, auxiliary device and the communication between the digital assistants equipment in (the working range of PAN (Personal Area Network) being in 10 meters) among a small circle.The technology of wireless personal local area network comprises: bluetooth (Bluetooth) and super wideband (UWB) etc.What wherein Bluetooth technology was used in wireless personal local area network is the most extensive.The bluetooth channel bandwidth is 1MHz, asynchronous asymmetric connection peak data rate 723.2kbit/s; Connecting distance is about 10m mostly, releases new bluetooth standard 2.0 editions and intends supporting that this is to adapt to the more and more inevitable evolution trend of many broadband multimedia services demand up to the above speed of 10Mbit/s in 2004.
The transmission rate of bluetooth in fact can decrease because of barrier, development and people's improving constantly along with wireless telecommunications to transmission quality requirements, the super wideband interconnection technique that is mainly used in short-distance transmission equally (is mainly used in 10 meters short distance high-speed data communications, and more than 100 meters, even 1 kilometer remote low speed communication) receives increasing the concern and attention as a kind of novel Radio Transmission Technology.This technology is to utilize the low intensive narrow pulse signal of emission rather than carrier wave is realized at a high speed, high quality transmission, so frequency range is very big, and antijamming capability is strong, and has to reduce and launch signal power to reach the advantage of low-power, low power consumption.Another advantage of super wideband is exactly that spatial content is big, when people constantly require to have big wireless data capacity, add that radio-frequency spectrum is tending towards saturated, this just requires a good wireless telecommunication system not only will provide high Bit Transmission Rate, also must concentrate on less entity area, so super broadband system becomes the new lover in the wireless telecommunications.Owing to super wideband and bluetooth present stage are accepted to use by market simultaneously, good electron equipment need possess the antenna that can work in super wideband and two kinds of frequency ranges of bluetooth simultaneously.
No. the 563274th, Taiwan patent announcement " dual-band antenna ", it discloses a kind of built-in ground plane of notebook computer liquid crystal curtain that utilizes, the example of design inverted-F antenna on this ground plane, but this antenna is applicable to the wireless personal local area network system of 2.4GHz, 5GHz dual-band operation, but high frequency band is narrower.
Therefore, we are necessary above-mentioned antenna is improved, to remedy above-mentioned defective.
[summary of the invention]
The object of the present invention is to provide a kind of multifrequency antenna that two kinds of emission bands and high frequency have the broad emission band that has.
To achieve these goals, the present invention adopts following technical scheme: a kind of multifrequency antenna comprises: be roughly tabular grounding parts, the Department of Radiation that is provided with at interval with grounding parts, electrically connect the connecting portion of grounding parts and Department of Radiation, feeder line and parasitic radiation portion, described Department of Radiation comprises first radiation fin and second radiation fin with roughly the same length, described feeder line comprises the outer conductor that electrically connects with grounding parts and in order to the inner wire of feed, described parasitic radiation portion extends from grounding parts, it comprise first radiant panel that links to each other with grounding parts and link to each other with first radiant panel and with described grounding parts second radiant panel separately.
For achieving the above object, the present invention also can adopt following technical scheme: a kind of multifrequency antenna comprises: the grounding parts with lengthwise dual-side, the Department of Radiation that is provided with at interval with described grounding parts, electrically connect the connecting portion of grounding parts and Department of Radiation, feeder line and parasitic radiation portion, described feeder line comprises the outer conductor that electrically connects with grounding parts and in order to the inner wire of feed, described Department of Radiation works in a ultrabroad band, described Department of Radiation works in a ultrabroad band, described parasitic radiation portion extends from grounding parts, and it works in the low bluetooth frequency band of more described ultra broadband ultrabroad band.
Multifrequency antenna of the present invention has the following advantages: because two emission bands of Department of Radiation intersect overlap, so antenna bandwidth is increased.
[description of drawings]
Fig. 1 is the stereogram of multifrequency antenna of the present invention.
Fig. 2 is another angle stereogram of Fig. 1.
Fig. 3 is the voltage standing wave ratio figure of multifrequency antenna of the present invention.
[embodiment]
Please refer to illustrated in figures 1 and 2ly, it is the antenna stereogram that better embodiment provided of multifrequency antenna of the present invention.
In this embodiment, this multifrequency antenna 100 is to be formed by sheet metal bending cutting, it comprise the grounding parts 11 that is positioned at horizontal plane and has the lengthwise dual-side, the installation portion 12 that is positioned at grounding parts 11 two ends, with grounding parts 11 at interval settings Department of Radiation 13, be connected the connecting portion 14 of grounding parts 11 and Department of Radiation 13 and extended parasitic radiation portion 15 on grounding parts 11.Described installation portion 12, Department of Radiation 13, connecting portion 14 and parasitic radiation portion 15 all are positioned at the same side of grounding parts 11 place horizontal planes.
Department of Radiation 13 works in the 3.15GHz-4.80GHz frequency band.Connecting portion 14 tilt to extend upward from the contiguous installation portion of a side of grounding parts 11 12 places and comprise with Department of Radiation 13 be connected in tie point P the first arm 141, is connected second arm 142 of the first arm 141 and grounding parts 11 and diagonally extending and from stretch out the 3rd arm 143 of formation of the first arm 141.The other end of the 3rd arm 143 is provided with the feedback point Q with the welding of the inner wire of feeder line (not shown).Department of Radiation 13 comprises that having first identical radiation fin 131 of general shape and second radiation fin, 132, the first radiation fins 131 and second radiation fin 132 is connected in tie point P.
Department of Radiation 13 of the present invention is realized the function of UWB (Ultra Wideband) Antenna by two radiation fin actings in conjunction.Electric current forms first emission band from the feed-in of feedback point via first radiation fin 131; Form second emission band via second radiation arm 132.First, second emission band is connected to form the ultrabroad band of covering from 3.15GHz to 4.80GHz.
Please refer to shown in Figure 3ly, it is VSWR (voltage standing wave ratio) figure of embodiment of the present invention multifrequency antenna 100.As can be seen from Figure 3, but Department of Radiation 13 operating frequencies are 3.15GHz-4.80GH; But parasitic radiation portion 15 operating frequencies are 2.4-2.5GHz.Above-mentioned frequency band has covered the technical standard working bands such as BlueTooth, UWB of WPAN.
Embodiment of the present invention multifrequency antenna 100 is under the acting in conjunction of Department of Radiation 13 and parasitic radiation portion 15, and the frequency band that can work has covered current popular most of technical standard working band among the WPAN.
Claims (10)
1. multifrequency antenna, it comprises: the Department of Radiation that is roughly tabular grounding parts, is provided with at interval with grounding parts, electrically connect connecting portion, feeder line and the parasitic radiation portion of grounding parts and Department of Radiation, described feeder line comprises the outer conductor that electrically connects with grounding parts and in order to the inner wire of feed; It is characterized in that: described Department of Radiation comprises first radiation fin and second radiation fin with roughly the same length, described parasitic radiation portion extends from grounding parts, it comprise first radiant panel that links to each other with grounding parts and link to each other with first radiant panel and with described grounding parts second radiant panel separately.
2. multifrequency antenna as claimed in claim 1 is characterized in that: first radiant panel and the connecting portion of described parasitic radiation portion extend upward formation from the lengthwise dual-side of grounding parts respectively.
3. multifrequency antenna as claimed in claim 1 is characterized in that: described connecting portion comprises the first arm that links to each other with Department of Radiation and is connected second arm of the first arm in grounding parts and diagonally extending.
4. multifrequency antenna as claimed in claim 3, it is characterized in that: described connecting portion further comprises extended the 3rd arm from the first arm bottom, the inner wire of described feeder line is welded on the 3rd arm, and described first radiation fin, second radiation fin and the first arm are connected in a tie point.
5. multifrequency antenna as claimed in claim 1, it is characterized in that: described first radiant panel extends vertically upward from the side of grounding parts, described second radiant panel vertically extends and is parallel to grounding parts from the first radiant panel end, it is for n shape and comprise the 4th radiation fin, the 5th radiation fin and the 6th radiation fin that turnover successively connects, and wherein the 4th radiation fin extends from the first radiant panel top.
6. multifrequency antenna as claimed in claim 1, it is characterized in that: described Department of Radiation and parasitic radiation portion work in respectively in a lower band and a high frequency band, described high frequency band is the ultrabroad band of 3.15GHz to 4.80GHz, and described lower band is the bluetooth frequency band of 2.4GHz to 2.5GHz.
7. multifrequency antenna, it comprises: the Department of Radiation that has the grounding parts of lengthwise dual-side, is provided with at interval with described grounding parts, electrically connect connecting portion, feeder line and the parasitic radiation portion of grounding parts and Department of Radiation, described feeder line comprises the outer conductor that electrically connects with grounding parts and in order to the inner wire of feed; It is characterized in that: described Department of Radiation works in a ultrabroad band, and described parasitic radiation portion extends from grounding parts, and it works in the low bluetooth frequency band of more described ultrabroad band.
8. multifrequency antenna as claimed in claim 7, it is characterized in that: described connecting portion is that the lengthwise side from grounding parts extends, and comprise the first arm that links to each other with Department of Radiation, be connected the first arm in second arm of grounding parts and diagonally extending and from the first arm bottom extended the 3rd arm, the inner wire of described feeder line is welded on the 3rd arm, and described first radiation fin, second radiation fin and the first arm are connected in a tie point.
9. multifrequency antenna as claimed in claim 7, it is characterized in that: described parasitic radiation portion comprise from extended vertically upward first radiant panel of the side of grounding parts and from the first radiant panel end vertically extend and with described grounding parts second radiant panel separately, described second radiant panel is parallel to grounding parts, it is for n shape and comprise the 4th radiation fin, the 5th radiation fin and the 6th radiation fin that turnover successively connects, and wherein the 4th radiation fin extends from the first radiant panel top.
10. multifrequency antenna as claimed in claim 7 is characterized in that: described ultrabroad band is 3.15GHz to 4.80GHz, and described bluetooth frequency band is 2.4GHz to 2.5GHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100227602A CN101316006B (en) | 2007-05-28 | 2007-05-28 | Multi-frequency antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100227602A CN101316006B (en) | 2007-05-28 | 2007-05-28 | Multi-frequency antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101316006A true CN101316006A (en) | 2008-12-03 |
| CN101316006B CN101316006B (en) | 2012-06-20 |
Family
ID=40106895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100227602A Expired - Fee Related CN101316006B (en) | 2007-05-28 | 2007-05-28 | Multi-frequency antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101316006B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101998689B (en) * | 2009-08-14 | 2013-10-02 | 联想（上海）有限公司 | Mobile terminal and multiband aerial used on same |
| CN103490149A (en) * | 2012-06-13 | 2014-01-01 | 纬创资通股份有限公司 | Electronic device and antenna module thereof |
| CN104037501A (en) * | 2013-03-07 | 2014-09-10 | 宏达国际电子股份有限公司 | Mobile device |
| CN113300099A (en) * | 2021-05-18 | 2021-08-24 | 长沙驰芯半导体科技有限公司 | Miniaturized ultra wide band and bluetooth printed antenna |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6552686B2 (en) * | 2001-09-14 | 2003-04-22 | Nokia Corporation | Internal multi-band antenna with improved radiation efficiency |
| CN2727983Y (en) * | 2004-06-01 | 2005-09-21 | 富士康(昆山)电脑接插件有限公司 | Multi-frequency antenna |
-
2007
- 2007-05-28 CN CN2007100227602A patent/CN101316006B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101998689B (en) * | 2009-08-14 | 2013-10-02 | 联想（上海）有限公司 | Mobile terminal and multiband aerial used on same |
| CN103490149A (en) * | 2012-06-13 | 2014-01-01 | 纬创资通股份有限公司 | Electronic device and antenna module thereof |
| CN104037501A (en) * | 2013-03-07 | 2014-09-10 | 宏达国际电子股份有限公司 | Mobile device |
| CN113300099A (en) * | 2021-05-18 | 2021-08-24 | 长沙驰芯半导体科技有限公司 | Miniaturized ultra wide band and bluetooth printed antenna |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101316006B (en) | 2012-06-20 |
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Granted publication date: 20120620 Termination date: 20150528 |
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