CN202019051U - Inverted-F antenna - Google Patents
Inverted-F antenna Download PDFInfo
- Publication number
- CN202019051U CN202019051U CN2011200532363U CN201120053236U CN202019051U CN 202019051 U CN202019051 U CN 202019051U CN 2011200532363 U CN2011200532363 U CN 2011200532363U CN 201120053236 U CN201120053236 U CN 201120053236U CN 202019051 U CN202019051 U CN 202019051U
- Authority
- CN
- China
- Prior art keywords
- antenna
- inverse
- line segment
- triangular structure
- inverted
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
- H01Q9/42—Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
Abstract
The present utility model discloses an inverted-F antenna. A radiation main body of the inverted-F antenna is arranged on a clearance zone of a mobile phone printed circuit board in a serpentine curve way. The serpentine curve shape is applied to the inverted F antenna (IFA), the band width is broadened to a large extent, the antenna space is saved, the antenna is small in volume and light in weight, and can satisfy the need of small shape of mobile phones. Moreover, the antenna is simple in structure, is easily connected with other circuits and systems, is easily manufactured, has low costs, and is expected to have good application prospects and achieve good economic benefits.
Description
Technical field
The utility model relates to a kind of communications field, relates in particular to a kind of inverse-F antenna (Inverted-F Antenna Inverted abbreviates IFA as).
Background technology
Along with the development of modern communication technology, antenna has been subjected to increasing attention and more the improvement, especially on its bandwidth capacity as the headend equipment of communication system.And for antenna for mobile phone, along with the change of people's aesthetic standards, also more and more higher to the requirement of sky line modelling.All thicker as former a lot of mobile phones, size is also very roomy, and this is a good state to antenna, can allow the space of antenna bigger, and thickness is thicker, also can be guaranteed above the performance.But present mobile phone is more and more thinner, handset size also has been subjected to very big restriction, especially at some ultra-thin small and exquisite mobile phones of women, therefore antenna is had higher requirement, under limited space and very short height situation, to realize more excellent performance.
Compare with general microwave antenna, microstrip antenna has lot of advantages, and is low, in light weight as cost, processing is simple, easy for installation etc., and can with integrated circuit compatibility etc. mutually.It is widely used in missile launcher, aircraft, phased array antenna and the portable wireless transceiver machine.But it also has some shortcomings, as bandwidth and axial ratio.Usually, the smaller bandwidth of microstrip antenna (less than 10%), this fatal shortcoming of narrow bandwidth makes microstrip antenna can not satisfy the needs of Modern Communication System.
Antenna for mobile phone has following several types: PIFA (Planar Inverted-F Antenna Inverted, planar inverted-F antenna), IFA (Inverted-F Antenna Inverted, inverse-F antenna) and unipole antenna.The PIFA antenna is come by the microstrip antenna distortion, and the IFA antenna is by the PIFA antenna deformation, so the shortcoming IFA antenna that microstrip antenna has also has.
For the IFA antenna that is applied in the mobile phone the inside, it is necessary expanding its bandwidth.At present, there have been a lot of methods to improve the bandwidth of microstrip antenna,, realized double frequencies, the mode of resonance of two ground connection of fluting generation and with the radiation patch of taper etc. on radiation patch with two radiation patch as increasing the height of paster.These methods can be improved the bandwidth of microstrip antenna effectively.Also can increase the beamwidth of antenna, as T type ground, H type ground by the structure that changes ground.
The above-mentioned mode of widening bandwidth can be subjected to the restriction above the space in the specific implementation, especially for the less mobile phone of size, implement difficulty very.
The utility model content
The purpose of this utility model is to provide a kind of IFA antenna, to solve the narrow defective of the existing IFA beamwidth of antenna.
For addressing the above problem, the utility model provides a kind of inverse-F antenna, comprising:
The radiating principal of described inverse-F antenna is arranged in the headroom district of mobile phone printed circuit board in the mode of serpentine.
Further,
Described inverse-F antenna one end ground connection a bit links to each other with coaxial feeder on this antenna.
Further,
On the described inverse-F antenna at least the part line segment have identical triangular structure, two limits in the described triangular structure are made of the part line segment of described inverse-F antenna.
Further,
Described triangular structure is a triangular structure of right angle, and the part line segment of described inverse-F antenna has constituted the right-angle side and the hypotenuse of described right-angled triangle.
Further,
The line segment direction of the right-angle side of described right-angled triangle is vertical mutually with the trend of described IFA antenna.
Further,
The length of described inverse-F antenna be this antenna operation wavelength 1/4th.
Further,
The operation wavelength λ of described inverse-F antenna adopts following formula to calculate:
Wherein: c is the light velocity; F is the centre frequency of described inverse-F antenna; ε is the dielectric constant of described mobile phone printed circuit board.
The utility model is applied to the serpentine shape in the IFA antenna, has expanded its bandwidth largely, has also saved antenna space simultaneously, and volume is little, and is in light weight, satisfies the small and exquisite needs of present mobile phone modelling.In addition, it is simple in structure, is easy to be connected with other circuit or system, makes easily, and cost is low, is expected good application prospect, and obtains good economic benefit.
Description of drawings
Fig. 1 is the end view of IFA antenna among the utility model embodiment;
Fig. 2 is the vertical view of IFA antenna among the utility model embodiment.
Embodiment
Hereinafter will be elaborated to embodiment of the present utility model in conjunction with the accompanying drawings.Need to prove that under the situation of not conflicting, embodiment among the application and the feature among the embodiment be combination in any mutually.
In the present embodiment, the radiating principal of IFA antenna is arranged in the headroom district of mobile phone PCB (Printed Circuit Board, printed circuit board) plate in the mode of serpentine.This IFA antenna one end ground connection a bit links to each other with coaxial feeder on this antenna.The length of this antenna be this antenna operation wavelength 1/4th; Wherein, the operation wavelength λ of antenna adopts following formula to calculate:
Wherein: c is the light velocity; F is the centre frequency of antenna; ε is the dielectric constant of pcb board.
In another embodiment of the present utility model, this antenna adopts the mode of serpentine to be arranged in the headroom district of mobile phone pcb board, be meant: on this antenna at least the part line segment have identical triangular structure, two limits in this triangular structure are made of the part line segment of this antenna.Preferably, this triangular structure is a triangular structure of right angle, and the part line segment of antenna has constituted the right-angle side and the hypotenuse of this right-angled triangle, and it is vertical mutually with the trend of this antenna to constitute line segment direction of this right-angle side.
Design parameter of the present utility model is that theoretical simulation and the experimental result selected on the basis of certain theory analysis all show respond well.Experimental result shows that antenna-10dB bandwidth is 50%, and working frequency range is that 1.5GHz is to 2.47GHz, with respect to microstrip antenna at ordinary times less than 10% bandwidth, bandwidth increases to original 5 times, and (tests of other parameters) have very large lifting, and bandwidth is improved more obvious.
Describe details and working condition in detail below in conjunction with Fig. 1 according to the concrete device that the utility model proposes.Mainly comprise: aerial radiation main body 1, pcb board 2, PCB stratum 3 and antenna ground post 4.As shown in Figure 2, the point that is connected with coaxial feeder of IFA antenna is antenna feed point B; The point that the IFA antenna is connected with antenna ground post (4) is earth point A, and the IFA antenna is by earth point A ground connection.
Aerial radiation main body with serpentine structure is placed on the headroom district of rectangle pcb board, the size L1*L2=40mm of pcb board * 90mm wherein, and thickness is 1mm, the length L 3=12mm in headroom district.Earth point A is apart from distance b=4mm of feedback point B, wherein the length a=5mm of grounding arm.Here adopted the triangular structure of right angle of four distortion altogether, in each triangular structure of right angle, c=2mm, d=3mm, the length of this distortion serpentine has determined the working frequency range of antenna.
Test result shows: when this IFA antenna was arranged according to the serpentine mode, bandwidth was improved more obvious.Cumulative volume is 90mm*40mm*1.4mm, shortage in weight 150 grams.
The above is a preferred embodiment of the present utility model only, is not to be used to limit protection range of the present utility model.According to utility model content of the present utility model; also other various embodiments can be arranged; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art are when making various corresponding changes and distortion according to the utility model; all within spirit of the present utility model and principle; any modification of being done, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (7)
1. inverse-F antenna comprises:
The radiating principal of described inverse-F antenna is arranged in the headroom district of mobile phone printed circuit board in the mode of serpentine.
2. inverse-F antenna as claimed in claim 1 is characterized in that:
Described inverse-F antenna one end ground connection a bit links to each other with coaxial feeder on this antenna.
3. inverse-F antenna as claimed in claim 1 is characterized in that:
On the described inverse-F antenna at least the part line segment have identical triangular structure, two limits in the described triangular structure are made of the part line segment of described inverse-F antenna.
4. inverse-F antenna as claimed in claim 3 is characterized in that:
Described triangular structure is a triangular structure of right angle, and the part line segment of described inverse-F antenna has constituted the right-angle side and the hypotenuse of described right-angled triangle.
5. inverse-F antenna as claimed in claim 4 is characterized in that:
The line segment direction of the right-angle side of described right-angled triangle is vertical mutually with the trend of described IFA antenna.
6. inverse-F antenna as claimed in claim 1 is characterized in that:
The length of described inverse-F antenna be this antenna operation wavelength 1/4th.
7. inverse-F antenna as claimed in claim 6 is characterized in that:
The operation wavelength λ of described inverse-F antenna adopts following formula to calculate:
Wherein: c is the light velocity; F is the centre frequency of described inverse-F antenna; ε is the dielectric constant of described mobile phone printed circuit board.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200532363U CN202019051U (en) | 2011-03-02 | 2011-03-02 | Inverted-F antenna |
| PCT/CN2012/071304 WO2012116603A1 (en) | 2011-03-02 | 2012-02-20 | Inverted-f antenna and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200532363U CN202019051U (en) | 2011-03-02 | 2011-03-02 | Inverted-F antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202019051U true CN202019051U (en) | 2011-10-26 |
Family
ID=44812719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200532363U Expired - Lifetime CN202019051U (en) | 2011-03-02 | 2011-03-02 | Inverted-F antenna |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN202019051U (en) |
| WO (1) | WO2012116603A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012116603A1 (en) * | 2011-03-02 | 2012-09-07 | 中兴通讯股份有限公司 | Inverted-f antenna and mobile terminal |
| CN106093597A (en) * | 2016-05-28 | 2016-11-09 | 河北工业大学 | Utilize the photo-electric electric field near field probes that printed circuit board makes |
| WO2017132860A1 (en) * | 2016-02-03 | 2017-08-10 | 青勇 | V-shaped antenna structure |
| CN107887692A (en) * | 2017-10-27 | 2018-04-06 | 苏州景昱医疗器械有限公司 | The Implanted medical system of microstrip antenna and the application antenna |
| CN110545766A (en) * | 2017-03-07 | 2019-12-06 | 史密夫和内修有限公司 | Reduced pressure treatment systems and methods including antennas |
| CN111193105A (en) * | 2020-04-09 | 2020-05-22 | 杭州涂鸦信息技术有限公司 | Antenna with special-shaped radiating body and equipment |
| WO2021197147A1 (en) * | 2020-04-03 | 2021-10-07 | 清研讯科（北京）科技有限公司 | Antenna and electronic device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7063887B2 (en) | 2016-09-29 | 2022-05-09 | スミス アンド ネフュー インコーポレイテッド | Construction and protection of components in negative pressure wound healing systems |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005519509A (en) * | 2002-03-04 | 2005-06-30 | シーメンス インフォメイション アンド コミュニケイション モバイル エルエルシー | Multiband PIF antenna having meander structure |
| CN2540078Y (en) * | 2002-03-12 | 2003-03-12 | 正文科技股份有限公司 | Improved printed reversing F type aerial |
| US20050264447A1 (en) * | 2004-05-27 | 2005-12-01 | Chi-Shen Shan | Structure for inverted F plane antenna |
| CN201163659Y (en) * | 2008-01-25 | 2008-12-10 | 南京理工大学 | Plane inverse F shape antenna with serpentine curve structure |
| CN202019051U (en) * | 2011-03-02 | 2011-10-26 | 中兴通讯股份有限公司 | Inverted-F antenna |
-
2011
- 2011-03-02 CN CN2011200532363U patent/CN202019051U/en not_active Expired - Lifetime
-
2012
- 2012-02-20 WO PCT/CN2012/071304 patent/WO2012116603A1/en active Application Filing
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012116603A1 (en) * | 2011-03-02 | 2012-09-07 | 中兴通讯股份有限公司 | Inverted-f antenna and mobile terminal |
| WO2017132860A1 (en) * | 2016-02-03 | 2017-08-10 | 青勇 | V-shaped antenna structure |
| CN106093597A (en) * | 2016-05-28 | 2016-11-09 | 河北工业大学 | Utilize the photo-electric electric field near field probes that printed circuit board makes |
| CN106093597B (en) * | 2016-05-28 | 2018-08-17 | 河北工业大学 | The photo-electric electric field near field probes made using printed circuit board |
| CN110545766A (en) * | 2017-03-07 | 2019-12-06 | 史密夫和内修有限公司 | Reduced pressure treatment systems and methods including antennas |
| EP3592313B1 (en) | 2017-03-07 | 2021-07-07 | Smith & Nephew, Inc | Reduced pressure therapy systems and methods including an antenna |
| CN107887692A (en) * | 2017-10-27 | 2018-04-06 | 苏州景昱医疗器械有限公司 | The Implanted medical system of microstrip antenna and the application antenna |
| WO2021197147A1 (en) * | 2020-04-03 | 2021-10-07 | 清研讯科（北京）科技有限公司 | Antenna and electronic device |
| CN111193105A (en) * | 2020-04-09 | 2020-05-22 | 杭州涂鸦信息技术有限公司 | Antenna with special-shaped radiating body and equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012116603A1 (en) | 2012-09-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111026 |
|
| CX01 | Expiry of patent term |