CN1988255B - Multiple frequency antenna - Google Patents
Multiple frequency antenna Download PDFInfo
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- CN1988255B CN1988255B CN2005100226297A CN200510022629A CN1988255B CN 1988255 B CN1988255 B CN 1988255B CN 2005100226297 A CN2005100226297 A CN 2005100226297A CN 200510022629 A CN200510022629 A CN 200510022629A CN 1988255 B CN1988255 B CN 1988255B
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Abstract
This invention discloses a multi-frequency antenna formed by punching and bending a metal plate including a frist antenna and a second antenna, either of which has a low frequency radiation part working at 2.4GHz and a high frequency radiation part working at 5GHz, in which, the low frequency radiation parts of the two antennas are not at the same plane or on a same line, so the radiation fields of the low radiation parts of the first and second antennas are not in a same plane or on a same line and multi-frequency antenna is made up greatly in the radiation blind region of low frequency radiation band.
Description
[technical field]
The invention relates to a kind of multifrequency antenna, refer to a kind of multifrequency antenna that is used on notebook computer or other electric terminal especially.
[background technology]
Along with the high speed development of mobile communication, people more and more wish to be equipped with a notebook computer or other portable terminal device just can insert Internet whenever and wherever possible.Satisfied people's this demand to a certain extent based on the wireless-access mode of GPRS (General Packer RadioService, GPRS) and WLAN (Wireless Local Area Network, WLAN (wireless local area network)).GPRS is the wireless network that a wide area covers, and its message transmission rate is probably at 30Kbps～50Kbps, and WLAN is the wireless network that a local covers, and its message transmission rate can reach 11Mbps (based on the 802.11b technology).People cooperate portable terminal devices such as notebook computer by selecting the different radio network interface card, insert Internet whenever and wherever possible.Because the WLAN message transmission rate can reach 11Mbps, so (hotel, airport, coffee-house, commercial center, conference and exhibition center) provides public WLAN high-speed data service at some hot zones, automatically switch after leaving hot zones, connect by maintenance networks such as GPRS.
At present, WLAN (wireless local area network) is mostly based on bluetooth (Bluetooth) technical standard or IEEE802.11 series standard.The working band of antenna falls within 2.4GHz in the Bluetooth technology standard, and the working band of antenna falls within 2.4GHz and 5GHz respectively in the IEEE802.11 series technique standard.And the GPRS working band falls within 900MHz, 1800MHz and 1900MHz, and therefore, the antenna in the notebook computer is the antenna that is applied to above-mentioned frequency band mostly at present.
The used antennas of mobile communication terminal such as present notebook computer roughly can be divided into externally positioned type and built-in.And be subject to the shortcoming that the foreign object collision produces bending, is out of shape, fractures owing to the externally positioned type antenna can influence moulded attractive in appearance of device and have, so built-in antenna has become notebook computer and other mobile communication terminal trend of application.
(Planar Inverted-F Antenna PIFA) is a kind of small size antenna that is usually used in mobile communication terminal to planar inverted " F " type antenna.Its characteristics are that size is little, and are in light weight, can effectively reduce occupation space and manufacturing cost, and impedance matching is good, is easy to realize double frequency or multifrequency.It another very important characteristic is exactly that it has horizontal polarization and perpendicular polarization concurrently, is applicable to the place that electromagnetic environment is comparatively complicated.
Because the IEEE802.11 series standard is divided into various criterions such as IEEE802.11a, IEEE802.11b again, along with the difference of standard, corresponding frequency is also different.When falling " F " type antenna at design plane, in order to meet more standards to improve Products Compatibility, the double frequency plane that generally all is designed to receive and dispatch two kinds of frequencies falls " F " type antenna.
Double frequency plane falls " F " though the type antenna can satisfy the demand of frequency band, because the radiation characteristic of itself, its radiation field can produce the blind area, and causing can not receiving and transmitting signal on some direction.
Consider above-mentioned drawback, the above-mentioned antenna of necessary improvement.
[summary of the invention]
The object of the present invention is to provide a kind of multifrequency antenna, it can remedy the aerial radiation blind area.
For achieving the above object, multifrequency antenna of the present invention is reached in the following manner:
A kind of multifrequency antenna, be used for notebook computer or other electronic communication equipment terminal, it has first antenna and second antenna, and this first antenna all has the grounding parts and the connecting portion that is connected grounding parts and Department of Radiation that Department of Radiation, first antenna and second antenna are shared with second antenna; First antenna and second antenna have first Department of Radiation and the first Department of Radiation that works in same frequency respectively, and the open end of first Department of Radiation of first antenna is positioned at different straight lines with the open end of the described first Department of Radiation of second antenna.
For achieving the above object, multifrequency antenna of the present invention can also be reached in the following manner:
A kind of multifrequency antenna, be to be used for notebook computer or other electronic communication equipment terminal, it has first antenna and second antenna, and this first antenna all has the grounding parts and the connecting portion that is connected grounding parts and Department of Radiation that Department of Radiation, first antenna and second antenna are shared with second antenna; First antenna and second antenna have first Department of Radiation and the first Department of Radiation that works in same frequency respectively, and first Department of Radiation of this first antenna and the first Department of Radiation of second antenna all have the L configuration, and this pair of L configuration is positioned at Different Plane.
Compared with prior art, the advantage of multifrequency antenna of the present invention is: by unique configuration of first antenna and the second aerial radiation portion, make multifrequency antenna of the present invention can not produce self-excitation, and dead angle is less, the work better effects if.
[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.
[embodiment]
Fig. 1 and Fig. 2 are the better embodiment of multifrequency antenna 10 of the present invention, and it comprises first antenna 1 and second antenna 2 that is bent to form by the punching press of metal lamellar body.First antenna 1 has first Department of Radiation 11, second Department of Radiation 12, the 3rd Department of Radiation 13, the first feeder line access portion 14, first connecting portion 15 and grounding parts 16.Wherein first Department of Radiation 11 works in the lower band of the 2.4GHz of IEEE802.11a standard, second Department of Radiation 12 works in the high frequency band of the 5GHz of IEEE802.11b/g standard, the 3rd Department of Radiation 13 is replenishing of high-frequency radiation part, and it can further enlarge the frequency range of high-frequency radiation part.
Second radiation arm 112 that first Department of Radiation 11 comprises first radiation arm 111 shared with second Department of Radiation 12, extend from first radiation arm, 111 1 ends perpendicular to first radiation arm 111, be positioned at same plane with second radiation arm 112 and parallelly stagger in the 3rd radiation arm 113 of second radiation arm, 112 place straight lines and be connected second radiation arm 112 and the 4th radiation arm 114 of the 3rd radiation arm 113.The 3rd radiation arm 113 and the 4th radiation arm 114 constitute one " L " type structure.Second Department of Radiation 12 also comprises the 5th radiation arm 115 from first radiation arm, 111 1 ends extend and second radiation arm 112 is positioned at same straight line and extends round about.The 3rd Department of Radiation 13 from first radiation arm, 111 other ends perpendicular to first radiation arm 111 and be parallel to the 5th radiation arm 115 and extend to form.
The first feeder line access portion 14 is rectangle lamellar bodies that a bending is extended, and it is located at the junction of the 3rd Department of Radiation 13 and first radiation arm 111 and perpendicular to the 3rd Department of Radiation 13 and first radiation arm 111.
Grounding parts 16 has that Department of Radiation with first antenna is positioned at conplane less first ground plane 161 and perpendicular to the second bigger ground plane 162 of first ground plane 161.First ground plane, 161 contiguous first Department of Radiation, 11 1 middle side parts have a rectangular indentation 17.This breach 17 can make things convenient for the 3rd radiation arm 113 and the 4th radiation arm 114 to extend and can not touch first ground plane 161.Close first antenna 1 in vertical two ends of second ground plane 162 and second antenna, 2 one sides have extended to form respectively with first ground plane 161 and have been positioned at conplane installation portion 3, and this installation portion 3 is provided with the installing hole 30 of convenient locking multifrequency antenna 10.
First connecting portion 15 extends from the end of first ground plane 161 near first antenna 1, and its end is connected in the junction of the 3rd Department of Radiation 13 and first radiation arm 111 and is positioned at same straight line with the 3rd Department of Radiation 13.
First Department of Radiation 11, second Department of Radiation 12, the 3rd Department of Radiation 13, first connecting portion 15 and first ground plane 161 of first antenna 1 all are positioned at same plane.
First Department of Radiation 21 comprises first radiation arm 211, reaches third radiation arm 213 that from second radiation arm 212 ends perpendicular to second radiation arm 212 place plane bending extend perpendicular to first radiation arm 211 to extending near the direction of first antenna 1 and being positioned at conplane second radiation arm 212 with first radiation arm 211 from first radiation arm 211 1 ends.First Department of Radiation 11 of third radiation arm 213 and first antenna is not in same plane.The second radiation arm 212 and third radiation arm 213 constitute one " L " type structure.Second Department of Radiation 22 comprises the first radiation arm 211 shared with first Department of Radiation 21 and is positioned at the fourth radiation arm 214 that same straight line oppositely extends from first radiation arm 211 1 ends perpendicular to first radiation arm 211 and with second radiation arm 212.Third Department of Radiation 23 from first radiation arm 211 other ends perpendicular to first radiation arm 211 and be parallel to fourth radiation arm 214 and extend.
Second connecting portion 25 extends from the end of first ground plane 161 near second antenna 2, and its end is connected in the junction of third Department of Radiation 23 and first radiation arm 211 and is positioned at same straight line with third Department of Radiation 23.
The second feeder line access portion 24 is rectangle lamellar bodies that a bending is extended, and it is located at the junction of third Department of Radiation 23 and first radiation arm 211 and perpendicular to third Department of Radiation 23 and plane, first radiation arm 211 place.
First Department of Radiation 11 of first antenna 1 and the first Department of Radiation of second antenna 2 21 are through above-mentioned design, the open end (being free terminal) that makes first Department of Radiation 11 and first Department of Radiation 12 promptly not in same plane again not on same straight line, its radiation field has been avoided overlapping to a great extent, make Anneta module (not shown) can determine easily which antenna is as main antenna, which antenna is as slave antenna, thereby avoid multifrequency antenna 10 to produce self-excitation, and make this slave antenna can better remedy the dead angle of main antenna, make multifrequency antenna 10 better in low frequency radiation section service behaviour.
Claims (10)
1. multifrequency antenna, be used for notebook computer or other electronic communication equipment terminal, it has first antenna and second antenna, and this first antenna all has the grounding parts and the connecting portion that is connected grounding parts and Department of Radiation that Department of Radiation, first antenna and second antenna are shared with second antenna; It is characterized in that: first antenna has first Department of Radiation, second antenna has with first Department of Radiation and works in the first Department of Radiation of same frequency and share the second Department of Radiation of first radiation arm with the first Department of Radiation, the open end of first Department of Radiation of first antenna is positioned at different straight lines with the open end of the described first Department of Radiation of second antenna, described first Department of Radiation also comprises the second radiation arm and from the second radiation arm and third radiation arm that extends perpendicular to second radiation arm bending, described third radiation arm is the open end of described first Department of Radiation, and first Department of Radiation of itself and described first antenna is not in same plane.
2. multifrequency antenna as claimed in claim 1 is characterized in that: described second Department of Radiation also has the fourth radiation arm that the second radiation arm with the first Department of Radiation is positioned at same straight line and extends round about.
3. multifrequency antenna as claimed in claim 2, it is characterized in that: described first antenna also comprises second Department of Radiation, described first Department of Radiation and second Department of Radiation are shared first radiation arm, this first Department of Radiation also has second radiation arm that extends from first radiation arm, one end perpendicular to first radiation arm, be positioned at same plane with second radiation arm and parallelly stagger in the 3rd radiation arm of the second radiation arm place straight line and connect second radiation arm and the 4th radiation arm of the 3rd radiation arm, the 3rd radiation arm is the open end of described first Department of Radiation, and described second Department of Radiation also comprises the 5th radiation arm from first radiation arm, one end extends and second radiation arm is positioned at same straight line and extends round about.
4. multifrequency antenna as claimed in claim 3 is characterized in that: described first antenna also has the 3rd Department of Radiation that extends and be parallel to the 5th radiation arm from first radiation arm, one end; Described second antenna also has third Department of Radiation that extends and be parallel to the fourth radiation arm from first radiation arm one end.
5. multifrequency antenna as claimed in claim 4, it is characterized in that: described grounding parts comprises first ground plane and perpendicular to second ground plane of first ground plane, the Department of Radiation of this first ground plane and first antenna is positioned at same plane, and its side near the 3rd radiation arm has a rectangular indentation.
6. multifrequency antenna as claimed in claim 5, it is characterized in that: the two ends of first ground plane are extended first connecting portion of described first antenna and second connecting portion of described second antenna respectively, first connecting portion is connected with the junction of first radiation arm and the 3rd Department of Radiation and is positioned at same straight line with the 3rd Department of Radiation, and second connecting portion is connected with the junction of the first radiation arm and third Department of Radiation and is positioned at same straight line with third Department of Radiation.
7. multifrequency antenna as claimed in claim 6, it is characterized in that: described first antenna has the first feeder line access portion, and this first feeder line access portion bends the rectangle lamellar body that extends from first radiation arm and the 3rd Department of Radiation junction perpendicular to plane, the first aerial radiation portion place; Described second antenna has the second feeder line access portion, and this second feeder line access portion is the rectangle lamellar body that extends perpendicular to first radiation arm and third Department of Radiation from the junction of the first radiation arm and third Department of Radiation.
8. multifrequency antenna, be to be used for notebook computer or other electronic communication equipment terminal, it has first antenna and second antenna, and this first antenna all has the grounding parts and the connecting portion that is connected grounding parts and Department of Radiation that Department of Radiation, first antenna and second antenna are shared with second antenna; It is characterized in that: first antenna has first Department of Radiation, second antenna has the first Department of Radiation that works in same frequency with first Department of Radiation, first Department of Radiation of this first antenna and the first Department of Radiation of second antenna all have the L configuration, this pair of L configuration is positioned at Different Plane, described first antenna also has second Department of Radiation of sharing first radiation arm with described first Department of Radiation, described first Department of Radiation also comprises second radiation arm, be positioned at same plane with second radiation arm and be parallel to the 3rd radiation arm of the second radiation arm place straight line and be connected second, the 4th radiation arm of the 3rd radiation arm, wherein the 3rd, the 4th radiation arm forms above-mentioned L configuration.
9. multifrequency antenna as claimed in claim 8 is characterized in that: described first antenna also has the 3rd Department of Radiation perpendicular to first radiation arm.
10. multifrequency antenna as claimed in claim 8, it is characterized in that: described second antenna also has shares the second Department of Radiation of first radiation arm with described first Department of Radiation and perpendicular to third Department of Radiation of first radiation arm, this first Department of Radiation also comprises third radiation arm that second radiation arm with first Department of Radiation of first antenna is positioned at collinear second radiation arm and extends perpendicular to the bending of second radiation arm, and wherein second, third radiation arm form above-mentioned L configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100226297A CN1988255B (en) | 2005-12-21 | 2005-12-21 | Multiple frequency antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100226297A CN1988255B (en) | 2005-12-21 | 2005-12-21 | Multiple frequency antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1988255A CN1988255A (en) | 2007-06-27 |
| CN1988255B true CN1988255B (en) | 2011-06-15 |
Family
ID=38184942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005100226297A Expired - Fee Related CN1988255B (en) | 2005-12-21 | 2005-12-21 | Multiple frequency antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1988255B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5009240B2 (en) * | 2008-06-25 | 2012-08-22 | ソニーモバイルコミュニケーションズ株式会社 | Multiband antenna and wireless communication terminal |
| CN101740852B (en) * | 2008-11-05 | 2013-01-09 | 启碁科技股份有限公司 | Broadband plane antenna |
| CN101740866B (en) * | 2008-11-27 | 2013-01-02 | 启碁科技股份有限公司 | Multi-frequency antenna for wireless communication device |
| CN102097674B (en) * | 2009-12-09 | 2013-06-19 | 宏碁股份有限公司 | Moving device with multiple sets of antennas |
| CN102386489B (en) * | 2010-09-01 | 2014-07-30 | 富士康(昆山)电脑接插件有限公司 | Multi-frequency antenna |
| CN109151936B (en) * | 2018-09-11 | 2021-02-09 | 合肥联宝信息技术有限公司 | Antenna system and network switching method |
-
2005
- 2005-12-21 CN CN2005100226297A patent/CN1988255B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1988255A (en) | 2007-06-27 |
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| 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: 20110615 Termination date: 20161221 |