CN102709672B - Multiband antenna - Google Patents
Multiband antenna Download PDFInfo
- Publication number
- CN102709672B CN102709672B CN201210001542.1A CN201210001542A CN102709672B CN 102709672 B CN102709672 B CN 102709672B CN 201210001542 A CN201210001542 A CN 201210001542A CN 102709672 B CN102709672 B CN 102709672B
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- radiation
- horizontal stripe
- taeniae
- parasitic element
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Abstract
The invention discloses a multiband antenna which comprises a feeding point, a first grounding point, a second grounding point, a radiation portion, a branch structure and a parasitic element. The radiation portion is connected with the feeding point, the parasitic element comprises a first parasitic unit connected with the first grounding point and a second parasitic unit connected with the second grounding point, the first parasitic unit and the second parasitic unit are arranged on two sides of the radiation portion, the first parasitic unit is coupled with the radiation portion, the branch structure is arranged between the radiation portion and the second parasitic unit, and the branch structure is coupled with the second parasitic unit. The antenna which achieves the multiband through an intercoupling effect has the advantages of being small in size, low in cost, wide in band width and high in efficiency.
Description
[technical field]
The present invention relates to a kind of antenna, particularly relate to a kind of multiband antenna be applied in portable electron device.
[background technology]
In a wireless communication device, Zong have one to space radiation electromagnetic energy and the device from space-reception electromagnetic energy, this device is exactly antenna.The effect of antenna is that the digital signal or analog signal that are modulated to rf frequency are transmitted into spatial wireless channels, or receives from spatial wireless channels the numeral or analog signal that are modulated at rf frequency.
Smart mobile phone and panel computer have risen the personal radio communication equipment becoming a kind of fashion, the simultaneously various radio communication service such as the integrated LTE of inevitable requirement, if the correspondence in mobile device of corresponding multiple communication band arranges multiple antenna, the entirety of antenna can be made to take volume larger, also make Total Product cost higher, be not also inconsistent with the mobile device thinning tendency of ever more popular.So low cost, miniaturized multiband antenna become the object of the active development research of designer.
[summary of the invention]
It is comparatively large and make the problem that Total Product cost is higher that entirety for prior art antenna takies volume, the object of this invention is to provide a kind of entirety and take small volume and make the lower-cost multiband antenna of Total Product.
The object of the present invention is achieved like this:
A kind of multiband antenna, comprise distributing point, the first earth point and the second earth point, described multiband antenna also comprises Department of Radiation, branched structure and parasitic element, described Department of Radiation connects distributing point, described parasitic element comprises the first parasitic element of connection first earth point being positioned at Department of Radiation both sides and the second parasitic element being connected the second earth point, described first parasitic element is coupled with between described Department of Radiation, described branched structure is located between Department of Radiation and the second parasitic element, is coupled between described branched structure with the second parasitic element.
Preferably, described Department of Radiation is provided with the couple feed portion and radiation horizontal stripe connected vertically with couple feed portion that connect distributing point.
Preferably, the first parasitic element comprise connection first earth point and with L-type first construction unit that couple feed portion be arranged in parallel, be provided with the first gap regulating frequency band between L-type first construction unit and couple feed portion; T-type structure unit vertically disposed with L-type first construction unit, is provided with the second gap between T-type structure unit and radiation horizontal stripe, T-type structure unit and radiation horizontal stripe are coupled by the second gap and realize low-frequency band.
Preferably, second parasitic element is connection second earth point and L-type second construction unit be arranged in parallel with couple feed portion, described branched structure is from the vertically extending horizontal stripe of coupling current feed department, be provided with third space between L-type second construction unit and branched structure, L-type second construction unit and branched structure are coupled by third space and realize high frequency band.
Preferably, described multiband antenna can be operated in low-frequency band 698 ~ 960MHz respectively, midband 1710 ~ 2170MHz, high frequency band 2305 ~ 2690MHz.
The present invention has the following advantages: the invention provides a kind of parasitic coupling effect that utilizes to realize the antenna of multiband.This antenna takies that volume is little, cost is low, band is broad, efficiency is high.
[accompanying drawing explanation]
Fig. 1 is the planar structure schematic diagram of multiband antenna of the present invention;
Fig. 2 is the operating efficiency test result figure of multiband antenna of the present invention;
Fig. 3 is the voltage standing wave ratio test result figure of multiband antenna of the present invention.
[embodiment]
Below in conjunction with accompanying drawing, the present invention is elaborated.
As shown in Figure 1, for the planar structure schematic diagram of multiband antenna 100 of the present invention, it comprises distributing point P, first earth point G1 and the second earth point G2, described multiband antenna 100 also comprises Department of Radiation 40, branched structure 52 and parasitic element (sign), described Department of Radiation 40 connects distributing point P, described parasitic element comprises first parasitic element 10 of the connection first earth point G1 being positioned at Department of Radiation 40 both sides and the second parasitic element 20 being connected the second earth point G2, described first parasitic element 10 is coupled with between described Department of Radiation 40, described branched structure 52 is located between Department of Radiation 40 and the second parasitic element 20, be coupled between described branched structure 52 with the second parasitic element 20.
Described Department of Radiation 40 is provided with the couple feed portion 41 and radiation horizontal stripe 42 connected vertically with couple feed portion 41 that connect distributing point P.
Described first parasitic element 10 comprise one end connect the first earth point G1's and the first taeniae 11 be arranged in parallel with couple feed portion 41, from the other end of the first taeniae 11 to vertically extending first horizontal stripe 12 in direction away from couple feed portion 41, a bit to vertically extending second taeniae 21 in direction away from the first taeniae 11 on the first horizontal stripe 12, connect the end of the second taeniae 21 and be parallel to the second horizontal stripe 22 that radiation horizontal stripe 42 arranges.First taeniae 11 and the first horizontal stripe 12 together form L-type first construction unit 101, second taeniae 21 and the second horizontal stripe 22 together form T-type structure unit 102.The first gap 61 regulating frequency band is provided with between L-type first construction unit 101 and couple feed portion 41; Be provided with the second gap 62 between T-type structure unit 102 and radiation horizontal stripe 42, T-type structure unit 102 and radiation horizontal stripe 42 are coupled by the second gap 62 and realize low-frequency band, can adjust this frequency band by adjusting the second gap 62.The low-frequency band realized by being coupled effectively can shorten guide wavelength, realizes the miniaturization of antenna.
Described second parasitic element 20 comprise one end connect the second earth point G2's and the 3rd taeniae 31 be arranged in parallel with couple feed portion 41, from the other end of the 3rd taeniae 31 to vertically extending 3rd horizontal stripe 32 in direction away from couple feed portion 41.3rd taeniae 31 and the 3rd horizontal stripe 32 together form L-type second construction unit 201.Described branched structure 52 is from the vertically extending horizontal stripe of coupling current feed department 41, third space 63 is provided with between L-type second construction unit 201 and branched structure 52, L-type second construction unit 201 and branched structure 52 are coupled by third space 63 and realize high frequency band, can adjust this frequency band by adjustment third space 63.The introducing of the second parasitic element 20 add frequency band but do not increase antenna 100 take volume.
Described Department of Radiation 40 realizes midband, can adjust this frequency band by the length of adjustment radiation horizontal stripe 42.
Loudspeaker module can be arranged at the position between the second horizontal stripe 22 and the first horizontal stripe 12 on the left of second taeniae 21, arranges module compact like this, takies volume reduction.
3 frequency bands that multiband antenna 100 of the present invention works: low-frequency band 698 ~ 960MHz, midband 1710 ~ 2170MHz, high frequency band 2305 ~ 2690MHz include GSM850, GSM900, DCS1800, PCS1900, UMTS, LTE700, LTE2300, LTE2500, Bluetooth nine Personal Communications Services frequency bands.
If Fig. 2 is by surveying the operating efficiency test result obtained.Multiband antenna 100 of the present invention has good radiation efficiency and comparatively stable in each frequency band as can be seen from Figure 2, and efficiency value mainly concentrates between 50%-80%.Fig. 3 is that multiband antenna 100 of the present invention is by surveying the voltage standing wave ratio test result figure obtained.
The invention provides a kind of parasitic coupling effect that utilizes to realize the antenna of multiband.The low-frequency band realized by being coupled effectively can shorten guide wavelength, realizes the miniaturization of antenna, and the band of high-low frequency band is broad simultaneously, and efficiency is high.
Above-described is only embodiments of the present invention, it should be pointed out that for the person of ordinary skill of the art at this, without departing from the concept of the premise of the invention, can also make improvement, but these all belongs to protection scope of the present invention.
Claims (2)
1. a multiband antenna, comprise distributing point, first earth point and the second earth point, it is characterized in that: described multiband antenna also comprises Department of Radiation, branched structure and parasitic element, described Department of Radiation connects distributing point, described parasitic element comprises the first parasitic element of connection first earth point being positioned at Department of Radiation both sides and the second parasitic element being connected the second earth point, described first parasitic element is coupled with between described Department of Radiation, described branched structure is located between Department of Radiation and the second parasitic element, be coupled between described branched structure with the second parasitic element, described Department of Radiation is provided with the couple feed portion and radiation horizontal stripe connected vertically with couple feed portion that connect distributing point, first parasitic element comprises connection first earth point and the first taeniae be arranged in parallel with couple feed portion, from the other end of the first taeniae to vertically extending first horizontal stripe in direction away from couple feed portion, a bit to vertically extending second taeniae in direction away from the first taeniae on the first horizontal stripe, connect the second taeniae end and be parallel to radiation horizontal stripe arrange the second horizontal stripe, described first taeniae and the first horizontal stripe form L-type first construction unit jointly, the first gap regulating frequency band is provided with between L-type first construction unit and couple feed portion, described second taeniae and the second horizontal stripe form T-type structure unit jointly, the second gap is provided with between T-type structure unit and radiation horizontal stripe, T-type structure unit and radiation horizontal stripe are coupled by the second gap and realize low-frequency band, second parasitic element is connection second earth point and the 3rd taeniae be arranged in parallel with couple feed portion, from the other end of the 3rd taeniae to vertically extending 3rd horizontal stripe in direction away from couple feed portion, described 3rd taeniae and the 3rd horizontal stripe form L-type second construction unit jointly, described branched structure is from the vertically extending horizontal stripe of coupling current feed department, third space is provided with between L-type second construction unit and branched structure, L-type second construction unit and branched structure are coupled by third space and realize high frequency band, described Department of Radiation realizes midband.
2. multiband antenna according to claim 1, is characterized in that: described multiband antenna is operated in low-frequency band 698 ~ 960MHz, midband 1710 ~ 2170MHz, high frequency band 2305 ~ 2690MHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210001542.1A CN102709672B (en) | 2012-01-05 | 2012-01-05 | Multiband antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210001542.1A CN102709672B (en) | 2012-01-05 | 2012-01-05 | Multiband antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102709672A CN102709672A (en) | 2012-10-03 |
| CN102709672B true CN102709672B (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210001542.1A Expired - Fee Related CN102709672B (en) | 2012-01-05 | 2012-01-05 | Multiband antenna |
Country Status (1)
| Country | Link |
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| CN (1) | CN102709672B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9900040B2 (en) | 2015-07-16 | 2018-02-20 | Pegatron Corporation | Wireless communication apparatus |
| CN108879099A (en) * | 2017-05-15 | 2018-11-23 | 启碁科技股份有限公司 | mobile device and antenna structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104183922A (en) * | 2013-05-28 | 2014-12-03 | 联想(北京)有限公司 | Novel antenna pattern including all frequency bands of cellular antenna and non-cellular antenna |
| CN104412450A (en) * | 2014-04-28 | 2015-03-11 | 华为终端有限公司 | Antenna and mobile terminal |
| CN105098351A (en) * | 2014-05-21 | 2015-11-25 | 启碁科技股份有限公司 | Broadband antenna and wireless communication device |
| US9437926B2 (en) * | 2014-12-01 | 2016-09-06 | Wistron Corporation | Antenna having asymmetric T shape coupled feed |
| CN105789820B (en) * | 2014-12-23 | 2020-01-14 | 深圳富泰宏精密工业有限公司 | Antenna structure and wireless communication device with same |
| CN107112633B (en) * | 2015-12-22 | 2021-01-05 | 华为技术有限公司 | Mobile terminal |
| CN106571528B (en) * | 2016-10-25 | 2020-09-29 | 瑞声科技（南京）有限公司 | Multiband antenna system and electronic device |
| CN106785414A (en) * | 2017-03-20 | 2017-05-31 | 合肥联宝信息技术有限公司 | Coupled antenna |
| CN109119752B (en) * | 2018-08-13 | 2022-03-04 | 瑞声科技(新加坡)有限公司 | Antenna system and mobile terminal |
| CN109742526A (en) * | 2018-12-31 | 2019-05-10 | 瑞声科技（南京）有限公司 | Compact two-band mimo antenna and mobile terminal |
| CN109742527A (en) * | 2018-12-31 | 2019-05-10 | 瑞声科技（南京）有限公司 | Compact two-band mimo antenna |
| CN110649393B (en) * | 2019-09-29 | 2021-03-02 | 厦门大学嘉庚学院 | Tree-shaped growth type array ultra-wideband antenna |
| CN112821037B (en) | 2019-11-15 | 2022-09-02 | 英业达科技有限公司 | Multi-frequency antenna |
| TWI725642B (en) * | 2019-11-29 | 2021-04-21 | 英業達股份有限公司 | Multi-band antenna |
| TWI807568B (en) * | 2022-01-03 | 2023-07-01 | 啟碁科技股份有限公司 | Antenna structure and electronic device |
| CN116487870A (en) * | 2022-01-17 | 2023-07-25 | 华为技术有限公司 | Antenna and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200729612A (en) * | 2006-01-26 | 2007-08-01 | Yageo Corp | Internal multi-band antenna |
| TW200905983A (en) * | 2007-07-16 | 2009-02-01 | Quanta Comp Inc | Broadband antenna |
| CN201440222U (en) * | 2009-07-01 | 2010-04-21 | 联想(北京)有限公司 | Portable equipment |
-
2012
- 2012-01-05 CN CN201210001542.1A patent/CN102709672B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200729612A (en) * | 2006-01-26 | 2007-08-01 | Yageo Corp | Internal multi-band antenna |
| TW200905983A (en) * | 2007-07-16 | 2009-02-01 | Quanta Comp Inc | Broadband antenna |
| CN201440222U (en) * | 2009-07-01 | 2010-04-21 | 联想(北京)有限公司 | Portable equipment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9900040B2 (en) | 2015-07-16 | 2018-02-20 | Pegatron Corporation | Wireless communication apparatus |
| CN108879099A (en) * | 2017-05-15 | 2018-11-23 | 启碁科技股份有限公司 | mobile device and antenna structure |
| CN108879099B (en) * | 2017-05-15 | 2021-04-02 | 启碁科技股份有限公司 | Mobile device and antenna structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102709672A (en) | 2012-10-03 |
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Granted publication date: 20141224 Termination date: 20220105 |