CN1870351B - Multifrequency antenna - Google Patents
Multifrequency antenna Download PDFInfo
- Publication number
- CN1870351B CN1870351B CN 200510040318 CN200510040318A CN1870351B CN 1870351 B CN1870351 B CN 1870351B CN 200510040318 CN200510040318 CN 200510040318 CN 200510040318 A CN200510040318 A CN 200510040318A CN 1870351 B CN1870351 B CN 1870351B
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- antenna
- radiation
- department
- plane
- multifrequency
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Abstract
This invention relates to a multiple frequency antenna including a first antenna and a second antenna used in WWAN and third and fourth antennas used in WLAN, in which, the antennas are made of metal plates and said antenna integrates the antennas used in WWAN and WLAN to reduce the installation space of antennas.
Description
[technical field]
The present invention relates to a kind of antenna, relate in particular to a kind of multifrequency antenna that is used for radio communication device.
[background technology]
Along with the high speed development of mobile communication, People more and more hopes to be equipped with a notebook computer or other portable terminal devices 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 RadioScrvice, GPRS) and WLAN (Wireless Local Area Network, WLAN).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 through 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 through maintenance networks such as GPRS.
In wireless communication procedure; Antenna is a requisite important element; At some the portable terminal device of GPRS and WLAN bimodulus form network interface card is installed; Two antennas all can be equipped with, to adapt to the requirement of WWAN (Wirclcss Wide Area Network. wireless wide area network) and WLAN working frequency range respectively.Yet portable terminal devices such as notebook computer are attended by the requirement of miniaturization, so how two kinds of aerial integrations have just been become the problem of pendulum in face of the designer in limited space.
[summary of the invention]
Main purpose of the present invention is to provide a kind of multifrequency antenna, and this multifrequency antenna will be applied to the aerial integration of wireless wide area network and WLAN together, dwindle the installing space of antenna relatively, and each antenna still has good usefulness performance simultaneously.
For realizing above-mentioned purpose; Multifrequency antenna of the present invention comprises first antenna and second antenna and third antenna that is used for WLAN and the 4th antenna that is used for wireless wide area network, and wherein first antenna, second antenna, third antenna and the 4th antenna are made by a sheet metal.
Compared to prior art, multifrequency antenna of the present invention has realized that antenna integral installation space reduces, and can well accomplish the radio communication function that script needs a plurality of independently antennas to accomplish.
[description of drawings]
The antenna stereogram of Fig. 1 for being provided according to the present invention's one preferred embodiment.
Fig. 2 another visual angle antenna stereogram for being provided according to the present invention's one preferred embodiment.
Fig. 3 is this embodiment antenna wireless wide area network frequency range voltage standing wave ratio resolution chart.
Fig. 4 is this embodiment antenna wireless local area network (LAN) frequency range voltage standing wave ratio resolution chart.
Fig. 5 is this embodiment isolation between antennas resolution chart.
[embodiment]
Please see figures.1.and.2, it is the multifrequency antenna stereogram according to a kind of preferred embodiments of the present invention provided.This multifrequency antenna 10 comprises first antenna 1 and second antenna 2 and third antenna 3 that is used for WLAN and the 4th antenna 4 that is used for wireless wide area network.This multifrequency antenna 10 is made by a sheet metal punching press, and wireless wide area network antenna and wireless lan antenna are together with each other.
These multifrequency antenna 10 two ends have first installation portion 61 and second installation portion, 62, the first installation portions 61 and second installation portion 62 and form a mounting plane.This multifrequency antenna 10 comprises a grounding parts 50, and it is first antenna 1, second antenna 2, third antenna 3 and the shared grounding parts of the 4th antenna 4.This grounding parts 50 extends a kink 14 vertically upward, 14 one-tenth horizontal stripe shapes of this kink, one of which end first installation portion 61 of ining succession.First antenna 1 and second antenna 2 comprise a junction 12, and this connecting portion 12 is extended upward by kink 14.First antenna 1 comprises first Department of Radiation 11, and this Department of Radiation 11 and grounding parts 50 reach being connected between the two through first connecting portion 12 and kink 14.First Department of Radiation 11 adopts three-dimensional bending design, and the edge direction parallel with the longitudinally of mounting plane extended, and has shortened the length on the horizontal cross direction with the perpendicular mounting plane of longitudinally thus.If be defined as first plane to the plane at first connecting portion 12 and kink 14 places; The plane, Department of Radiation 11 place of first antenna 1 is defined as second plane; The plane at grounding parts 50 places is defined as the 3rd plane; Then first plane is respectively perpendicular to second plane and the 3rd plane, and this first plane and mounting plane exist together on the plane.The Department of Radiation 11 of first antenna 1 extends towards second installation portion, 62 directions in second plane, and its open end 110 is near second installation portion 62.The centre frequency of first antenna, 1 work is about 900MHz.Second antenna 2 comprises second Department of Radiation 21, and this second Department of Radiation 21 is extended towards first installation portion, 61 directions by first connecting portion 12, and its open end 210 is near first installation portion 61.The centre frequency of second antenna, 2 work is about 1900MHz.First antenna 1 and second antenna, 2 shared load points 120, this load point 120 is positioned on first connecting portion 12.We can adopt the mode of coaxial line (not shown) feed-in, and the internal core wire of coaxial line is welded to load point 120, and wire sheathing is welded on the grounding parts 50.First antenna 1 and second antenna 2 be planar inverted-F antenna (PlanarInverted-F Antenna, PIFA).
Be operated in the Department of Radiation 11 and the third antenna that is operated in the WLAN low-frequency range 3 Departments of Radiation 31 staggered putting of first antenna 1 of wireless wide area network low-frequency range; Make the open end 110 of the two, distance is far away as much as possible between 310, reduces the interference of reception of first antenna and third antenna signal and radiation with this.The interval that is operated in second antenna 2 of wireless wide area network high band and is operated between third antenna 3 centre frequencies of WLAN low-frequency range is minimum, so this two width of cloth interference between antennas is easier to take place.But in the present embodiment, put the position of this two width of cloth antenna space, and making also has certain space interval between the two, can satisfy the requirement of two antenna operate as normal.The Department of Radiation 41 of the Department of Radiation 21 of second antenna 2, the Department of Radiation 31 of third antenna 3 and the 4th antenna 4 and first, second connecting portion 12,34 and kink 14 all are positioned at same plane, i.e. first plane.Antenna of the present invention can be installed on notebook computer display screen upside the right and left, and the mode that the utilization double-fed is gone into makes antenna can answer different wireless network cards, is combined into various wireless application.
Fig. 3 is a wireless wide area network aerial voltage standing-wave ratio resolution chart, and the longitudinal axis is a voltage standing wave(VSW) ratio, and transverse axis is a frequency values.Fig. 4 is a wireless lan antenna voltage standing wave ratio resolution chart, and the longitudinal axis is a voltage standing wave(VSW) ratio, and transverse axis is a frequency values.The ideal value of voltage standing wave ratio is 1, in the actual test, it is generally acknowledged voltage standing wave(VSW) ratio less than 2 promptly in the scope that can accept, and as can beappreciated from fig. 3, near the frequency range voltage standing wave ratio 900MHz and 1900MHz frequency can both meet the demands.As can beappreciated from fig. 4, near the frequency range voltage standing wave ratio 2.4GHz and 5.2GHz frequency also can reach requirement.Fig. 5 is antenna 10 isolation degree test figure, and the longitudinal axis is the isolation value, and transverse axis is a frequency values.Can find out that by Fig. 5 the isolation value of being tested all is lower than-15dB, satisfies requirement of actual application in wireless wide area network and WLAN frequency range.
Claims (7)
1. multifrequency antenna; Comprise first antenna and second antenna and third antenna that is used for WLAN and the 4th antenna that are used for wireless wide area network; It is characterized in that: the centre frequency of the first antenna work is about 900MHz; The centre frequency of the second antenna work is about 1900MHz; Third antenna and the 4th antenna work in the low-frequency range and the high band of WLAN respectively, and multifrequency antenna also comprises confession first antenna, second antenna, third antenna and the 4th antenna duplexer and grounding parts that be a plane, and said first antenna, second antenna, third antenna, the 4th antenna and grounding parts are made by a sheet metal and formed; First antenna and second antenna have first connecting portion; Third antenna and the 4th antenna have second connecting portion, and first antenna, second antenna, third antenna, the 4th antenna comprise Department of Radiation respectively, and wherein the Department of Radiation of first antenna is positioned at second plane; The Department of Radiation of second antenna, third antenna, the 4th antenna and first connecting portion, second connecting portion all are positioned at first plane, and the Department of Radiation of first antenna and third antenna is crisscross arranged.
2. multifrequency antenna as claimed in claim 1 is characterized in that: first antenna and second antenna are planar inverted-F antenna.
3. multifrequency antenna as claimed in claim 1 is characterized in that: third antenna and the 4th antenna are planar inverted-F antenna.
4. multifrequency antenna as claimed in claim 1 is characterized in that: first antenna has identical load point with second antenna, and third antenna also has identical load point with the 4th antenna.
5. multifrequency antenna as claimed in claim 1 is characterized in that: the Department of Radiation of first antenna and the Department of Radiation of third antenna extend towards opposing direction.
6. multifrequency antenna as claimed in claim 1 is characterized in that: the Department of Radiation of the Department of Radiation of second antenna and the 4th antenna extends towards opposing direction.
7. multifrequency antenna as claimed in claim 1; It is characterized in that: first plane is perpendicular to second plane, and grounding parts is positioned at the 3rd plane, and the 3rd plane is perpendicular to first plane; Said multifrequency antenna also comprises from the upwardly extending kink of grounding parts; Said bending part is in first plane, and said first connecting portion extends upward from kink, second connecting portion kink other end of ining succession.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510040318 CN1870351B (en) | 2005-05-26 | 2005-05-26 | Multifrequency antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510040318 CN1870351B (en) | 2005-05-26 | 2005-05-26 | Multifrequency antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1870351A CN1870351A (en) | 2006-11-29 |
| CN1870351B true CN1870351B (en) | 2012-05-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510040318 Expired - Fee Related CN1870351B (en) | 2005-05-26 | 2005-05-26 | Multifrequency antenna |
Country Status (1)
| Country | Link |
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| CN (1) | CN1870351B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101295815B (en) * | 2007-04-24 | 2012-10-03 | 富士康(昆山)电脑接插件有限公司 | Composite antenna |
| CN101295816B (en) * | 2007-04-27 | 2013-03-13 | 富士康(昆山)电脑接插件有限公司 | Composite antenna |
| CN101304110B (en) * | 2007-05-07 | 2012-04-18 | 富士康(昆山)电脑接插件有限公司 | Wide band antenna |
| CN101453058B (en) * | 2007-11-29 | 2012-12-19 | 富士康(昆山)电脑接插件有限公司 | Composite antenna |
| CN101483269B (en) * | 2008-01-11 | 2013-01-09 | 国巨股份有限公司 | Antenna applied to wireless wide area network |
| CN101567489B (en) * | 2008-04-21 | 2013-07-10 | 富士康(昆山)电脑接插件有限公司 | Composite antenna |
| CN101740852B (en) * | 2008-11-05 | 2013-01-09 | 启碁科技股份有限公司 | Broadband plane antenna |
| CN101998689B (en) * | 2009-08-14 | 2013-10-02 | 联想（上海）有限公司 | Mobile terminal and multiband aerial used on same |
| 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 |
| CN102570036B (en) * | 2010-12-24 | 2016-03-02 | 富士康(昆山)电脑接插件有限公司 | Multifrequency antenna |
| CN104241871B (en) * | 2013-06-06 | 2019-07-12 | 深圳富泰宏精密工业有限公司 | The wireless communication device of multifrequency antenna and the application multifrequency antenna |
| CN105470633B (en) * | 2014-09-11 | 2019-04-05 | 深圳市六二九科技有限公司 | 2G, 3G, 4G integrate multifrequency antenna and wireless communication terminal |
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2005
- 2005-05-26 CN CN 200510040318 patent/CN1870351B/en not_active Expired - Fee Related
Non-Patent Citations (1)
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| Publication number | Publication date |
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| CN1870351A (en) | 2006-11-29 |
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Granted publication date: 20120523 Termination date: 20150526 |
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| EXPY | Termination of patent right or utility model |