CN201374384Y - Planar inversed-F-shaped antenna - Google Patents
Planar inversed-F-shaped antenna Download PDFInfo
- Publication number
- CN201374384Y CN201374384Y CN200920135263U CN200920135263U CN201374384Y CN 201374384 Y CN201374384 Y CN 201374384Y CN 200920135263 U CN200920135263 U CN 200920135263U CN 200920135263 U CN200920135263 U CN 200920135263U CN 201374384 Y CN201374384 Y CN 201374384Y
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- antenna
- frequency radiation
- shape
- planar inverted
- parasitic
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Abstract
The utility model relates to the field of radio frequency antennas, and discloses a planar inversed-F-shaped antenna. The planar inversed-F-shaped antenna comprises an antenna support and an antenna radiator, the antenna radiator comprises an antenna main body, a feeding point and a ground point, the feeding point and the ground point are arranged on the antenna main body, the antenna main body comprises a high-frequency radiation portion and a low-frequency radiation portion which are connected mutually, and parasitic elements are arranged on one side of the high-frequency radiation portion at intervals and are provided with short-circuit contacts. The parasitic elements of the novel planar inversed-F-shaped antenna are arranged on one side of the high-frequency radiation portion to be coupled with the antenna main body, thereby having a function of expanding high-frequency bandwidth of the antenna.
Description
Technical field
The utility model relates to field of radio frequency, particularly a kind of planar inverted F-shape antenna.
Background technology
Present antenna for mobile phone is divided into external and built-in two kinds, and the built-in mobile phone antenna places mobile phone inside, and planar inverted F-shape antenna (PIFA) for example is fragile and make the mobile phone good looking appearance, thereby has progressively substituted external dual-band mobile phone antenna and be used widely.
PIFA is converted by most widely used microstrip antenna.The same with microstrip antenna, it has numerous advantages, low, in light weight as cost, processing is simple, easy for installation and with integrated circuit compatibility etc. mutually.But it is exactly narrow bandwidth that PIFA has the shortcoming the same with microstrip antenna.This fatal shortcoming makes PIFA can not satisfy the needs of Modern Communication System, is necessary so expand the PIFA bandwidth.
The utility model content
In view of this, the utility model provides a kind of planar inverted F-shape antenna, can improve the bandwidth of antenna effectively.
The utility model provides a kind of planar inverted F-shape antenna, comprise antenna holder and antenna radiator, described antenna radiator comprises distributing point and the earth point on antenna body and the antenna body, described antenna body comprises high-frequency radiation part and the low frequency radiation portion that is connected with each other, one side of described high-frequency radiation part is furnished with parasitic antenna at interval, and described parasitic antenna is provided with short dot.
As seen from the above technical solution, the parasitic antenna of the utility model planar inverted F-shape antenna is positioned at a side of high-frequency radiation part, thereby is coupled with antenna body, plays the effect of extended antenna high frequency bandwidth.
Description of drawings
Fig. 1 is the structural representation of the planar inverted F-shape antenna that provides of the utility model.
Fig. 2 is the antenna radiator structural representation of the planar inverted F-shape antenna that provides of the utility model.
Fig. 3 is the perspective view of the planar inverted F-shape antenna that provides of the utility model.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the utility model is further described.
First embodiment of the present utility model:
A kind of planar inverted F-shape antenna that the utility model provides, comprise antenna holder and antenna radiator, described antenna radiator comprises distributing point and the earth point on antenna body and the antenna body, described antenna body comprises high-frequency radiation part and the low frequency radiation portion that is connected with each other, one side of described high-frequency radiation part is furnished with parasitic antenna at interval, and described parasitic antenna is provided with short dot.A described side is the opposite side that high-frequency radiation part links to each other with low frequency radiation portion, and described parasitic antenna and antenna body are in same plane.
Described parasitic antenna is a parasitic patch.
When using planar inverted-F antenna of the present utility model, the antenna holder of described antenna is fixed on have short dot, on the pcb board of distributing point, earth point, the short dot on the described parasitic antenna, the distributing point of antenna radiator and earth point are provided with short dot, distributing point, earth point respectively at pcb board and are electrically connected.
The parasitic antenna of the utility model planar inverted F-shape antenna is positioned at a side of high-frequency radiation part, thereby is coupled with antenna body, plays the effect of extended antenna high frequency bandwidth.Parasitic antenna is arranged in a side of high-frequency radiation part at interval, and this parasitic antenna has only consumed the energy of HFS, has avoided being given by parasitism the bandwidth of influence that the low frequency part performance brings and raising antenna that can be bigger.
On the basis based on first embodiment, second embodiment of the utility model planar inverted F-shape antenna has been proposed:
See also Fig. 1 to Fig. 3, a kind of planar inverted F-shape antenna that the utility model provides, comprise antenna holder (not shown) and antenna radiator 1, described antenna radiator 1 comprises distributing point 12 and the earth point 13 on antenna body 11 and the antenna body 11, described antenna body 11 comprises high-frequency radiation part 111 and the low frequency radiation portion 112 that is connected with each other, one side of described high-frequency radiation part 111 is furnished with parasitic antenna 2 at interval, and described parasitic antenna 2 is provided with short dot 21.Further, form the narrow slit 113 of a G shape between described high-frequency radiation part 111 and the low frequency radiation portion 112.The cabling of the narrow slit 113 of G shape has guaranteed that dual-frequency P IFA is operated in GSM900 and PCS frequency range.The width of described narrow slit 113 is 1-2mm.
Described parasitic antenna 2 is 1-3mm with antenna body 11 spacing distances.Further, described parasitic antenna 2 is preferably 2mm with antenna body 11 spacing distances.
Described antenna holder is a π type support.Described π type support can the effective support antenna radiator, guarantees the stable of product.
The area of described antenna body 11 is W * L=25mm * 49mm, and described distributing point 12 is positioned at the top edge of antenna body 11, and the distance of itself and top edge is 1mm, and the earth point 12 on the antenna radiator 1 is 5mm with the distance of distributing point 13.
The area of described parasitic antenna 2 is W * L=25mm * 6mm, and described short dot 31 is positioned at the centre position at parasitic antenna 2 edges.
Described pcb board 3, its area are W * L * H=60mm * 100mm * 1mm; Described pcb board 3 is 8mm apart from the height of antenna radiator 1.
Experimental result shows, additional parasitic antenna, this dual-frequency P IFA in the GSM900 bandwidth be-5.5dB and-5.5dB, pcs band is wide to be-6.5dB and-6.7dB; Additional parasitic antenna, GSM900 bandwidth be-5.4dB and-5.5dB, DCS and PCS band bandwidth be-10.2dB and-9.7dB.This shows that after HFS added parasitic antenna, this dual-frequency P IFA low frequency performance was almost constant, and high frequency bandwidth expands to the DCS frequency range, bandwidth is improved more obvious.
The above is preferred embodiment of the present utility model only, is not to be used to limit protection range of the present utility model.All within spirit of the present utility model and principle, any modification of being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (6)
1, a kind of planar inverted F-shape antenna, comprise antenna holder and antenna radiator, described antenna radiator comprises distributing point and the earth point on antenna body and the antenna body, described antenna body comprises high-frequency radiation part and the low frequency radiation portion that is connected with each other, it is characterized in that, one side of described high-frequency radiation part is furnished with parasitic antenna at interval, and described parasitic antenna is provided with short dot.
2, planar inverted F-shape antenna as claimed in claim 1 is characterized in that, forms the narrow slit of a G shape between described high-frequency radiation part and the low frequency radiation portion.
3, planar inverted F-shape antenna as claimed in claim 2 is characterized in that, the width of described narrow slit is 1-2mm.
4, planar inverted F-shape antenna as claimed in claim 1 is characterized in that, described parasitic antenna and antenna body spacing distance are 1-3mm.
5, planar inverted F-shape antenna as claimed in claim 4 is characterized in that, described parasitic antenna and antenna body spacing distance are preferably 2mm.
6, planar inverted F-shape antenna as claimed in claim 1 is characterized in that, described antenna holder is a π type support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920135263U CN201374384Y (en) | 2009-02-27 | 2009-02-27 | Planar inversed-F-shaped antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920135263U CN201374384Y (en) | 2009-02-27 | 2009-02-27 | Planar inversed-F-shaped antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201374384Y true CN201374384Y (en) | 2009-12-30 |
Family
ID=41500467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920135263U Expired - Fee Related CN201374384Y (en) | 2009-02-27 | 2009-02-27 | Planar inversed-F-shaped antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201374384Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576350A (en) * | 2014-10-15 | 2016-05-11 | 中兴通讯股份有限公司 | Multi-band antenna |
| WO2017076031A1 (en) * | 2015-11-06 | 2017-05-11 | 乐视控股（北京）有限公司 | Antenna manufacturing method, and antenna system |
| CN110429379A (en) * | 2019-08-12 | 2019-11-08 | 上海交通大学 | With symmetrical and difference beam gap coupling short paster antenna |
| CN113097688A (en) * | 2021-03-30 | 2021-07-09 | 联想(北京)有限公司 | Electronic equipment |
| CN116231283A (en) * | 2023-03-14 | 2023-06-06 | 东莞市猎声电子科技有限公司 | Antenna and application |
-
2009
- 2009-02-27 CN CN200920135263U patent/CN201374384Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576350A (en) * | 2014-10-15 | 2016-05-11 | 中兴通讯股份有限公司 | Multi-band antenna |
| WO2017076031A1 (en) * | 2015-11-06 | 2017-05-11 | 乐视控股（北京）有限公司 | Antenna manufacturing method, and antenna system |
| CN110429379A (en) * | 2019-08-12 | 2019-11-08 | 上海交通大学 | With symmetrical and difference beam gap coupling short paster antenna |
| CN110429379B (en) * | 2019-08-12 | 2020-07-14 | 上海交通大学 | Gap-coupled short-circuited patch antenna with symmetrical and differential beams |
| CN113097688A (en) * | 2021-03-30 | 2021-07-09 | 联想(北京)有限公司 | Electronic equipment |
| CN116231283A (en) * | 2023-03-14 | 2023-06-06 | 东莞市猎声电子科技有限公司 | Antenna and application |
| CN116231283B (en) * | 2023-03-14 | 2024-03-19 | 东莞市猎声电子科技有限公司 | Antenna and application |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20091230 Termination date: 20160227 |