CN102769168A - Helical antenna - Google Patents
Helical antenna Download PDFInfo
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- CN102769168A CN102769168A CN2011101134743A CN201110113474A CN102769168A CN 102769168 A CN102769168 A CN 102769168A CN 2011101134743 A CN2011101134743 A CN 2011101134743A CN 201110113474 A CN201110113474 A CN 201110113474A CN 102769168 A CN102769168 A CN 102769168A
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- antenna
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- fixing holder
- helical antenna
- fixed mount
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Abstract
The invention relates to a helical antenna which consists of an antenna body and an antenna fixed mount. Punched holes are distributed on the antenna fixed mount. The helical antenna passes through the punched holes, wherein each coil of helical antenna at least penetrates the antenna fixed mount twice. The antenna fixed mount is made from nonmetal materials. A screw pitch of the helical antenna is fixed through the antenna fixed mount so as to enable the screw pitch not to be changed when the helical antenna vibrates, and the antenna fixed mount provides positioning fixed points for fixing the helical antenna, so that the helical antenna meets the work environment of high vibration and high strength, and the stability and the reliability of a wireless communication system are improved.
Description
Technical field
The present invention relates to a kind of helical antenna, can be used as anti-high vibration, high-intensity radio-frequency antenna.
Background technology
In present height vibration, the high-intensity wireless telecommunication system, require radio-frequency antenna can adapt to high vibration, high-intensity operational environment, and can guarantee reliable ability to communicate, this just has higher requirement to the vibration resistance of radio-frequency antenna.Domestic and international application has following several kinds in the antenna scheme of height vibration, high strength environment at present:
(1) loop aerial: this antenna is a kind of simple in structure, low price, the antenna of various informative (like rectangle, square, triangle, circle and oval or the like).It is much littler that the radiation resistance of little loop antenna is littler than its loss resistance than wavelength that the weak point of this antenna is a girth, causes the radiation efficiency of little loop antenna very low, makes that also the gain of little loop antenna is low, is not suitable for doing the antenna than the telecommunication system.
(2) helical antenna: this antenna is the traveling-wave antenna that turns to helical structure with metal wire (or pipe), thereby helical antenna has advantages such as many-sided broadband, volume is little, in light weight, circular polarization characteristics is good.Its not enough place is: 1, in air dielectric, deformation pitch can take place when in height vibration, high strength environment, working and can change in helical antenna, thereby influences antenna gain, causes system reliability to reduce; 2, in the solid material medium, its weight can increase, and the solid material medium can change the distributed constant of helical antenna and influence Antenna Impedance Matching.
(3) unipole antenna: this antenna is the antenna that is of practical significance very much, and it is the half the of symmetrical dipole, and the electric current on its oscillator is identical with corresponding symmetrical dipole upper arm with CHARGE DISTRIBUTION.But input impedance is the half the of corresponding symmetrical dipole, and direction coefficient is the twice of corresponding symmetrical dipole, and it is lower slightly to gain.But the antenna geometrical length is very long, and antenna meeting random vibration influences the signal transmission in high vibration environment.When shortening antenna length, can cause: a, radiation resistance make the efficient of antenna very low less than loss resistance, generally have only a few percent; B, antenna input resistance are little, and reactance is big, and the Q value of antenna is very high, and working band is very narrow.Present most widely used quarter-wave monopole.
(4) chip aerial: this antenna is to adopt sheet metal as antenna radiator, belongs to electronically small antenna, and its gain is low, is not suitable for doing the antenna than the telecommunication system.
Summary of the invention
The present invention proposes a kind of improved helical antenna, improves the vibration resistance of helical antenna, makes it adapt to high vibration, high-intensity operational environment.
Helical antenna proposed by the invention comprises an antenna body and an antenna fixing holder, is distributed with perforation on the said antenna fixing holder, and said helical antenna passes said perforation, and wherein each circle helical antenna passes antenna fixing holder twice at least; Said antenna fixing holder is nonmetallic materials.
In above-mentioned helical antenna, said antenna fixing holder in the form of sheets, its cross section is " one " type.
In above-mentioned helical antenna, said antenna fixing holder in the form of sheets, its cross section is an obtuse angle.
In above-mentioned helical antenna, said antenna fixing holder is formed by a plurality of, and said a plurality of are connected to a common center.
In above-mentioned helical antenna, the cross section of said antenna fixing holder is " Y " type.
In above-mentioned helical antenna, the cross section of said antenna fixing holder is cross.
The present invention utilizes antenna fixing holder to fix the pitch of helical antenna; Pitch, antenna is not changed when vibrating; And for helical antenna the positioning and fixing point fixedly is provided, make it satisfy high vibration, high-intensity operational environment, improved stability, the reliability of wireless telecommunication system.
Description of drawings
For let above-mentioned purpose of the present invention, feature and advantage can be more obviously understandable, elaborate below in conjunction with the accompanying drawing specific embodiments of the invention, wherein:
Figure 1A, 1B illustrate the helical antenna structure of first embodiment of the invention.
Fig. 2 A, 2B illustrate the helical antenna structure of second embodiment of the invention.
Fig. 3 A, 3B illustrate the helical antenna structure of third embodiment of the invention.
Embodiment
The geometrical property of helical antenna can use structural parameters such as screw diameter D, pitch S, number of turns n, spiral conducting line diameter d to describe.In height vibration, high-intensity environment, the easiest affected parameter of helical antenna is pitch S.
In order to let the vibration of the present height of antenna adaptation, high strength environment, the present invention is on existing helical antenna technical foundation, increases antenna fixing holder to helical antenna and lets the vibration resistance of reinforcement helical antenna.Each embodiment according to this design is described below.
First embodiment
Figure 1A, 1B illustrate the helical antenna structure of first embodiment of the invention.Shown in Figure 1A, 1B, helical antenna 10 comprises antenna body 11 and antenna fixing holder 12.
The main effect of antenna body 11 is emissions or receives radio signals.Such as ordinary skill knowledge, the geometrical property of helical antenna can use structural parameters such as screw diameter D, pitch S, number of turns n, spiral conducting line diameter d to describe.
In the present embodiment, the spiral conducting line diameter d of helical antenna satisfies: 0.8mm≤d≤5mm; The pitch S of helical antenna satisfies: S>=d+1mm.
At this, other parameters are not limited, the user can be according to the actual needs design suitable parameters of helical antenna.
The main effect of antenna fixing holder 12 is fixed antennas, makes it can reliable work in height vibration, high strength environment, and the positioning and fixing point is provided when encapsulating to antenna.
Shown in Figure 1A, antenna fixing holder 12 is a sheet, is distributed with two registration holes 120 on it.The overall dimension of antenna fixing holder 12 and bore size are to be confirmed by the screw diameter D of helical antenna, pitch S, number of turns n, spiral conducting line diameter d.Antenna body 11 is spirals with the connected mode of antenna fixing holder 12, that is to say that antenna body 11 is according in the antenna pitch precession antenna fixing holder 12.Like this, each circle antenna will pass antenna fixing holder 12 twice.With Figure 1A, from the b point counterclockwise to a order be 360 ° one enclose in, pass antenna fixing holder altogether 12 twice.
The antenna fixing holder 12 that is appreciated that sheet can make it fix the two ends of antenna body 11 on a diameter, so the pitch S of antenna body will be difficult to change again, thereby adapts to high vibration and high strength environment.
As the variant of present embodiment, antenna fixing holder 12 can have an angle, for example obtuse angle.
In addition, antenna body 11 uses metal material usually.And essential nonmetallic materials, the for example plastics of adopting of antenna fixing holder material.
Described at this embodiment, antenna fixing holder 12 is sheet haply, and each circle antenna will pass antenna fixing holder 12 twice.Among the embodiment that will describe below, antenna fixing holder 12 can have more complicated shape, and each circle antenna will pass antenna fixing holder 12 above twice.
Second embodiment
Fig. 2 A, 2B illustrate the helical antenna structure of second embodiment of the invention.Comprise antenna body 21 and antenna fixing holder 22 with reference to Fig. 2 A, Fig. 2 B helical antenna 20.
The main distinction of the present embodiment and first embodiment is the shape of antenna fixing holder 22.In first embodiment, the cross section of antenna fixing holder 22 is roughly " one " type, and the cross section of present embodiment is " Y " type.Like this, each circle antenna will pass antenna fixing holder 22 3 times.Comparatively speaking, present embodiment will play better fixation to antenna body 21.
The 3rd embodiment
Fig. 3 A, 3B illustrate the helical antenna structure of third embodiment of the invention.Comprise antenna body 31 and antenna fixing holder 32 with reference to Fig. 3 A, Fig. 3 B helical antenna 30.
The main distinction of the present embodiment and first embodiment is the shape of antenna fixing holder 32.In first embodiment, the cross section of antenna fixing holder 32 is roughly " one " type, and the cross section of present embodiment is cross.Like this, each circle antenna will pass antenna fixing holder 32 4 times.Compared with aforesaid two embodiment, present embodiment will play better fixation to antenna body 31.
With the above-mentioned second and the 3rd embodiment, antenna fixing holder can be considered by a plurality of to be formed.A plurality of are connected to same center.The center of the center of " Y " type or " ten " font for example.For symmetry needs, this center can be positioned at the center of antenna body simultaneously.Usually, the antenna fixing holder of four sheet compositions can reach desirable stability.But be appreciated that the present invention does not limit the more sheet of use and forms antenna fixing holder.
It is understandable that at this composition mode can be formed as one or assemble with other parts.
The present invention is through increasing the mode of stator for helical antenna, it is constant to make the pitch of helical antenna confirm, can not change because of height vibrates; And antenna fixing holder contacts the distributed constant influence of helical antenna minimum with antenna point; In addition, antenna fixing holder is that the encapsulation of helical antenna provides the positioning and fixing point, makes the fixing more convenient more stable of antenna.
Though the present invention discloses as above with preferred embodiment; Right its is not that any those skilled in the art are not breaking away from the spirit and scope of the present invention in order to qualification the present invention; When can doing a little modification and perfect, so protection scope of the present invention is when being as the criterion with what claims defined.
Claims (6)
1. a helical antenna comprises an antenna body, it is characterized in that; Said helical antenna also comprises an antenna fixing holder; Be distributed with perforation on the said antenna fixing holder, said helical antenna passes said perforation, and wherein each circle helical antenna passes antenna fixing holder twice at least; Said antenna fixing holder is nonmetallic materials.
2. helical antenna as claimed in claim 1 is characterized in that, said antenna fixing holder in the form of sheets, its cross section is " one " type.
3. helical antenna as claimed in claim 1 is characterized in that, said antenna fixing holder in the form of sheets, its cross section is an obtuse angle.
4. helical antenna as claimed in claim 1 is characterized in that said antenna fixing holder is formed by a plurality of, and said a plurality of are connected to a common center.
5. helical antenna as claimed in claim 4 is characterized in that, the cross section of said antenna fixing holder is " Y " type.
6. helical antenna as claimed in claim 4 is characterized in that the cross section of said antenna fixing holder is cross.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101134743A CN102769168A (en) | 2011-05-03 | 2011-05-03 | Helical antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101134743A CN102769168A (en) | 2011-05-03 | 2011-05-03 | Helical antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102769168A true CN102769168A (en) | 2012-11-07 |
Family
ID=47096469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101134743A Pending CN102769168A (en) | 2011-05-03 | 2011-05-03 | Helical antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102769168A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103811852A (en) * | 2012-11-14 | 2014-05-21 | 北京信威通信技术股份有限公司 | Four-arm helical antenna and manufacturing method thereof |
| CN106329134A (en) * | 2015-06-26 | 2017-01-11 | 神讯电脑(昆山)有限公司 | Helix antenna structure |
| CN109037889A (en) * | 2018-05-31 | 2018-12-18 | 西安雷擎电子科技有限公司 | For interfering the transmitting antenna of Navigation of Pilotless Aircraft signal |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI99220B (en) * | 1995-04-05 | 1997-07-15 | Lk Products Oy | Antenna, especially mobile phone antenna, and method of manufacturing the antenna |
| US5894292A (en) * | 1996-12-09 | 1999-04-13 | Motorola, Inc. | Antenna assembly for a portable communications device |
| JP2002100922A (en) * | 2000-09-26 | 2002-04-05 | Kenwood Corp | Helical antenna and method for attaching antenna coil to substrate |
| WO2009065806A1 (en) * | 2007-11-20 | 2009-05-28 | Continental Automotive Gmbh | Fin-shaped multiband antenna module for vehicles |
| US7714796B1 (en) * | 2005-08-15 | 2010-05-11 | Schumacher Mark H | Hemispherical helical antenna and support frame therefor |
| EP2234198A1 (en) * | 2009-03-24 | 2010-09-29 | Actaris SAS | Helical antenna support |
-
2011
- 2011-05-03 CN CN2011101134743A patent/CN102769168A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI99220B (en) * | 1995-04-05 | 1997-07-15 | Lk Products Oy | Antenna, especially mobile phone antenna, and method of manufacturing the antenna |
| FI99220C (en) * | 1995-04-05 | 1997-10-27 | Lk Products Oy | Antenna, especially mobile phone antenna, and method of manufacturing the antenna |
| US5894292A (en) * | 1996-12-09 | 1999-04-13 | Motorola, Inc. | Antenna assembly for a portable communications device |
| JP2002100922A (en) * | 2000-09-26 | 2002-04-05 | Kenwood Corp | Helical antenna and method for attaching antenna coil to substrate |
| US7714796B1 (en) * | 2005-08-15 | 2010-05-11 | Schumacher Mark H | Hemispherical helical antenna and support frame therefor |
| WO2009065806A1 (en) * | 2007-11-20 | 2009-05-28 | Continental Automotive Gmbh | Fin-shaped multiband antenna module for vehicles |
| EP2234198A1 (en) * | 2009-03-24 | 2010-09-29 | Actaris SAS | Helical antenna support |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103811852A (en) * | 2012-11-14 | 2014-05-21 | 北京信威通信技术股份有限公司 | Four-arm helical antenna and manufacturing method thereof |
| CN103811852B (en) * | 2012-11-14 | 2017-08-11 | 北京信威通信技术股份有限公司 | A kind of four-arm spiral antenna and preparation method thereof |
| CN106329134A (en) * | 2015-06-26 | 2017-01-11 | 神讯电脑(昆山)有限公司 | Helix antenna structure |
| CN109037889A (en) * | 2018-05-31 | 2018-12-18 | 西安雷擎电子科技有限公司 | For interfering the transmitting antenna of Navigation of Pilotless Aircraft signal |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121107 |
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| RJ01 | Rejection of invention patent application after publication |