CN102694229A - FM microstrip antenna using Hilbert fractal - Google Patents
FM microstrip antenna using Hilbert fractal Download PDFInfo
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- CN102694229A CN102694229A CN2011100697784A CN201110069778A CN102694229A CN 102694229 A CN102694229 A CN 102694229A CN 2011100697784 A CN2011100697784 A CN 2011100697784A CN 201110069778 A CN201110069778 A CN 201110069778A CN 102694229 A CN102694229 A CN 102694229A
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- microstrip antenna
- antenna
- fractal
- hilbert
- mainboard
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Abstract
The invention relates to an FM microstrip antenna using Hilbert fractal, comprising a one-dimensional Hilbert fractal microstrip antenna structure which is formed by etching on a surface of a PCB substrate. The PCB substrate is disposed in a housing of a portable electronic device. The Hilbert fractal microstrip antenna is connected with a mainboard of the portable electronic device. The FM microstrip antenna can be manufactured by a standard process of a PCB, is simple in process and easy for operation, and has a wide source of raw materials and low manufacture cost. The use of the Hilbert fractal can reduce the size of the antenna and improve the bandwidth of the antenna, and enables the antenna to have a better portability and to obtain a stable gain in a whole FM wave band (78MHz-108MHz). The FM microstrip antenna has a very wide-application scope, and can be applied in all the existing world standard devices which have FM functions such as mobile phones, GPSs, MP3s, etc.
Description
Technical field
The present invention relates to a kind of antenna that is applied to portable electric appts, relate in particular to a kind of fractal FM microstrip antenna of Hilbert that adopts.
Background technology
Continuous development along with electronics, mechanics of communication; People have practised in the portable electric appts that uses the various FM of being integrated with functions, and like mobile phone, GPS, MP3 etc., but traditional F M receives general telescopic antenna or the earphone cord of using as reception antenna; So antenna size is huge; Can't be integrated into portable set inside, inconvenience is used, and manufacturing cost is high.
Summary of the invention
The objective of the invention is to propose a kind of fractal FM microstrip antenna of Hilbert that adopts, it can integratedly easily be arranged at portable electric appts inside, and has good bandwidth, thereby has overcome deficiency of the prior art.
For realizing the foregoing invention purpose, the present invention has adopted following technical scheme:
A kind of fractal FM microstrip antenna of Hilbert that adopts; It is characterized in that: said FM microstrip antenna is included in the one dimension Hilbert fractal microstrip antenna structure that a PCB substrate surface etching forms; Said PCB substrate is arranged in the portable electric appts housing, and said Hilbert fractal microstrip antenna is connected with the mainboard of portable electric appts.
Say further: at least one dew point is set as antenna feed point in the said one dimension Hilbert fractal microstrip antenna structure, and at least one dew point is as fixing pin, said fixedly pin is fixedly connected with mainboard.
At least two pins that said PCB substrate mat is separately positioned on its two ends are sticked on said mainboard.
Said pin height is more than 2mm.
The draw-in groove structure is set on the said mainboard, and said PCB substrate is embedded in the said draw-in groove structure.
Compared with prior art, the present invention has following beneficial effect:
(1) this antenna can adopt PCB printed circuit board (PCB) standard processing procedure to process, and technology is simple and easy to operate, and raw material sources are extensive, and are cheap for manufacturing cost;
(2) the fractal antenna volume that effectively reduces of Hilbert improves the beamwidth of antenna, makes antenna have better portability, and makes antenna can obtain stable gain at whole FM wave band (78MHz-108MHz).
The present invention is applicable to equipment such as the mobile phone with FM function, GPS, MP3 of all standards of the present whole world, and the scope of application is very extensive.
Description of drawings
Fig. 1 is one of structural representation of the present invention's one preferred embodiment;
Fig. 2 be the present invention's one preferred embodiment structural representation two;
Fig. 3 is the structural representation of another preferred embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment technical scheme of the present invention is elaborated.
Consult Fig. 1-2; The fractal FM microstrip antenna 2 of this employing Hilbert is arranged in the portable housing 1, is the one dimension Hilbert fractal microstrip antenna structure on the FR-4 substrate, etching, and it uses copper as medium; 2 millimeters pin is respectively adorned at two ends, so that paster is on cell phone mainboard.
This FM microstrip antenna has two to reveal copper point pin1 and pin2, and pin1 promptly is the feedback point of antenna, and pin2 is fixing pin, and pin2 is connected with radio frequency line 4.Through chip mounter antenna is attached on the mainboard (pcb board) 3 in use, is fixed on the mainboard, but should be noted that in use directly over antenna and can not place metal, in order to avoid influence the receptivity of FM antenna through reflow soldering.
Consult Fig. 3, preferred, on the above-mentioned mainboard draw-in groove structure 5 can be set, said FM microstrip antenna can be embedded in the said draw-in groove structure, and radio frequency line 4 is connected with mainboard 3 through solder joint 6, so that FM microstrip antenna and more fastening the combining of mainboard.
This adopts the fractal FM microstrip antenna performance of Hilbert as shown in the table:
| Frequency | 87.5～108MHz |
| Standing- |
5∶1max |
| Polarization mode | Linear polarization (Linear) |
| Radiation angle | Omnidirectional (Omni-directional) |
| Characteristic impedance | 50Ω |
| Size | 24mm×5mm×1.5mm |
This antenna can adopt PCB printed circuit board (PCB) standard processing procedure to process, and volume is little, and the beamwidth of antenna is big, not only possesses good portable performance, and can obtain stable gain at whole FM wave band (78MHz-108MHz).
Above-mentioned detailed description system specifies to possible embodiments of the present invention, and only this embodiment is not the claim in order to restriction the present invention, all do not break away from skill spirit of the present invention institute for it equivalence implement or change, all should be contained in the claim of this case.
Claims (5)
1. one kind is adopted the fractal FM microstrip antenna of Hilbert; It is characterized in that: said FM antenna is included in the one dimension Hilbert fractal microstrip antenna structure that a PCB substrate surface etching forms; Said PCB substrate is arranged in the portable electric appts housing, and said Hilbert fractal microstrip antenna is connected with the mainboard of portable electric appts.
2. adopt the fractal FM microstrip antenna of Hilbert according to claim 1; It is characterized in that: at least one dew point is set as antenna feed point in the said one dimension Hilbert fractal microstrip antenna structure; And at least one dew point is as fixing pin, and said fixedly pin is fixedly connected with mainboard.
3. adopt the fractal FM microstrip antenna of Hilbert according to claim 1, it is characterized in that: at least two pins that said PCB substrate mat is separately positioned on its two ends are sticked on said mainboard.
4. like the fractal FM microstrip antenna of the said employing Hilbert of claim 3, it is characterized in that: said pin height is more than 2mm.
5. like claim 1 or the fractal FM microstrip antenna of 3 said employing Hilberts, it is characterized in that: the draw-in groove structure is set on the said mainboard, and said PCB substrate is embedded in the said draw-in groove structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100697784A CN102694229A (en) | 2011-03-23 | 2011-03-23 | FM microstrip antenna using Hilbert fractal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100697784A CN102694229A (en) | 2011-03-23 | 2011-03-23 | FM microstrip antenna using Hilbert fractal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102694229A true CN102694229A (en) | 2012-09-26 |
Family
ID=46859556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100697784A Pending CN102694229A (en) | 2011-03-23 | 2011-03-23 | FM microstrip antenna using Hilbert fractal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102694229A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006002849A1 (en) * | 2004-06-29 | 2006-01-12 | A3 - Advanced Automotive Antennas | Multiservice antenna system assembly |
| CN101116224A (en) * | 2004-12-09 | 2008-01-30 | 先进汽车天线（A3）公司 | Miniature antenna for a motor vehicle |
| CN101707282A (en) * | 2009-12-02 | 2010-05-12 | 扬州万事通通讯电子发展有限公司 | Ceramic mobile phone aerial capable of receiving FM signals |
-
2011
- 2011-03-23 CN CN2011100697784A patent/CN102694229A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006002849A1 (en) * | 2004-06-29 | 2006-01-12 | A3 - Advanced Automotive Antennas | Multiservice antenna system assembly |
| CN101116224A (en) * | 2004-12-09 | 2008-01-30 | 先进汽车天线（A3）公司 | Miniature antenna for a motor vehicle |
| CN101707282A (en) * | 2009-12-02 | 2010-05-12 | 扬州万事通通讯电子发展有限公司 | Ceramic mobile phone aerial capable of receiving FM signals |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120926 |