CN106532233A - Helical antenna - Google Patents
Helical antenna Download PDFInfo
- Publication number
- CN106532233A CN106532233A CN201610576467.XA CN201610576467A CN106532233A CN 106532233 A CN106532233 A CN 106532233A CN 201610576467 A CN201610576467 A CN 201610576467A CN 106532233 A CN106532233 A CN 106532233A
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- CN
- China
- Prior art keywords
- spiral
- arm
- groups
- arms
- medium post
- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
- H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
- H01Q11/08—Helical antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
Abstract
The invention discloses a helical antenna, and the antenna comprises a hollow dielectric column, a radiator, and a feed assembly. The hollow dielectric column is of a column-shaped structure with the opened lower end and the closed upper end. The radiator comprises four groups of helical arms, wherein each group of helical arms comprises three helical arms, and the lower ends of the three helical arms are connected together and are connected with a group of feed ports. The four groups of helical arms are arranged in parallel at equal intervals. The four groups of helical arms are wound from the lower end of the hollow dielectric column to the upper end of the hollow dielectric column, and are disposed on the external surface of the hollow dielectric column. The feed assembly is disposed in the lower end of the hollow dielectric column. The feed assembly comprises one input port, a polarized power dividing device, and four output ports. The four output ports are correspondingly connected with the feed ports of the four groups of helical arms in a one-one manner. The input port receives an antenna signal. The helical antenna provided by the invention can improve the antenna efficiency, is lower in transmission loss of a satellite terminal, reduces the heating quantity during operation, and prolongs the communication time.
Description
Technical field
A kind of the present invention relates to satellite communication field, more particularly to helical antenna for satellite communication.
Background technology
Antenna is the important radio for launching and receiving electromagnetic wave.It is quick with mobile satellite communication technology
Development, market for the demand also more and more higher of high performance antenna product, especially to small volume, easy to carry, high sensitivity and
For high stability hand-held terminal device, demand is more urgent.
In mobile satellite communication earth station and satellite navigation, usually require that antenna has broad beam, circular polarisation special
Property, to keep satellite at the volley in the coverage of antenna beam.Meanwhile, antenna must have broadband or double frequency work
Make characteristic, so that sending and receiving share common antenna.Four-arm spiral antenna has excellent circular polarisation and broad beam characteristic, therefore quilt
It is widely used in mobile satellite communication.Common four-arm spiral antenna is resonant antenna, narrower bandwidth, it is difficult to meets mobile-satellite and leads to
The requirement of letter antenna broadband or dual band operation, so need to study wideband or double-frequency quadrifilar helix antenna.
Chinese patent CN204167476U and CN204760536U, disclose a kind of helical antenna, its structure such as Fig. 1 and Tu
Shown in 2.Existing disclosed helical antenna, has that antenna efficiency is low, is embodied in low frequency frequency range efficiency, altofrequency
Frequency range efficiency cannot be compatible.Top open loop manner low frequency frequency range efficiency is preferable, and altofrequency frequency range inefficient 2db；If
Short circuit at the top of high frequency arm, high band efficiency is preferable, and low-frequency range inefficient 2db.In this case, ordinary priority considers high frequency
Frequency range, separately can compensate the loss that the low deficiency of transmitting band antenna efficiency is brought by increasing terminal transmission power, but so easy
Cause ICBM SHF satellite terminal launch loss big, the problems such as generate heat serious, the air time is short during work.
The content of the invention
Present invention is primarily targeted at proposing a kind of helical antenna, it is intended to which the efficiency for solving existing helical antenna is low, low
The problems such as frequency bins efficiency, altofrequency frequency range efficiency cannot be compatible.
For achieving the above object, a kind of helical antenna that the present invention is provided, including hollow medium post, radiant body and feed
Component；
The hollow medium post is the column structure of lower ending opening upper end closure；
The radiant body includes four groups of spiral arms；Every group of spiral arm includes three spiral arms, and the lower end of three spiral arms connects
It is connected together and is connected with the feed port of the group；Four groups of spiral arms equidistantly be arranged in parallel；Four groups of spiral arm edges
Upper end from the lower end spiral winding of the hollow medium post to the hollow medium post and be arranged on the outer surface of hollow medium post；
The feed assembly is arranged on inside the lower end of the hollow medium post；The feed assembly includes an input
Mouth, polarization power splitter part, four output ports；One a pair of the feed port of four output ports and four groups of spiral arms
Should connect；The input port reception antenna signal.
Preferably, three spiral arms include two short spiral arms and a long spire arm, two short spiral arm difference
It is arranged on the both sides of long spire arm；
Or three spiral arms include two long spire arms and a short spiral arm, two long spire arms are separately positioned on
The both sides of short spiral arm.
Preferably, the hollow medium post includes hollow cylinder, hollow semicircle spheroid, the hollow semicircle spheroid and institute
State the top connection of hollow cylinder.
Preferably, the long spire arm spiral winding of four groups of spiral arms is to the extremely upper end of the hollow medium post and short circuit
Connection.
Preferably, the long spire arm spiral winding of four groups of spiral arms is to the top of the hollow medium post.
Preferably, top short circuit connection of the long spire arm of four groups of spiral arms in the hollow medium post.
Preferably, the long spire arm of four groups of spiral arms is in open-circuit condition on the top of the hollow medium post.
Preferably, the long spire arm of four groups of spiral arms is in " ten " shape in the outer surface of the hollow semicircle spheroid.
Preferably, the polarization power splitter part is integrated with polarization and forms network and impedance matching circuit.
Preferably, four groups of spiral arms are arranged on the outer surface of hollow medium post by laser carving or printing mode or pass through
Metal sheet form is embedded in the inner surface of hollow medium post..
The helical antenna that the present invention is provided can improve antenna efficiency, and ICBM SHF satellite terminal launch loss is less, reduce work
When caloric value, increase the air time.
Description of the drawings
Fig. 1 is a kind of helical antenna structure schematic diagram disclosed in prior art；
Fig. 2 is another kind of helical antenna structure schematic diagram disclosed in prior art；
Helical antenna structure schematic diagrams of the Fig. 3 for first embodiment of the invention；
Radiator structure schematic diagrams of the Fig. 4 for first embodiment of the invention helical antenna；
Feed assembly structural representations of the Fig. 5 for first embodiment of the invention helical antenna；
Helical antenna structure schematic diagrams of the Fig. 6 for second embodiment of the invention；
Radiator structure schematic diagrams of the Fig. 7 for second embodiment of the invention helical antenna；
Helical antenna structure schematic diagrams of the Fig. 8 for third embodiment of the invention.
The realization of the object of the invention, functional characteristics and advantage will be described further in conjunction with the embodiments referring to the drawings.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
In the description of the embodiment of the present invention, it is to be understood that term " " center ", " on ", D score, "front", "rear",
The orientation of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " or position relationship are based on accompanying drawing institute
The orientation for showing or position relationship, are for only for ease of the description present invention and simplify description, rather than indicate or imply the dress of indication
Put or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to the present invention limit
System.
It should be appreciated that specific embodiment described herein is not intended to limit the present invention only to explain the present invention.
Embodiment one：
Fig. 3-Fig. 5 is first embodiment of the invention schematic diagram.In the present embodiment, helical antenna includes hollow medium post 1, spoke
Beam 2, and feed assembly 3.
Hollow medium post 1 is the column structure of lower ending opening upper end closure.Specifically, column structure can adopt ABS materials,
The hollow semicircle spheroid (not shown) being connected smoothly by hollow cylinder (not shown) and with its top is constituted,
Form lower ending opening upper end closing structure.The height of the hollow medium post 1 is 99mm；The external diameter of hollow cylinder be 13mm, wall
Thick is 1.5-2.5mm.In other embodiments, column structure can be hollow cuboid and be connected smoothly with its top its
He is constituted bodies.That is the composition of hollow medium post 1 is not limited by the shape of ingredient.
It should be noted that " lower end ", " upper end " of the present embodiment, " on ", D score, be to be viewed as with Fig. 3, Fig. 4 front
With reference to orientation.
Fig. 3 and Fig. 4 is refer to, radiant body 2 is made up of four groups of spiral arms, every group of spiral arm includes three spiral arms.
Specifically, first group of spiral arm includes two short spiral arms 212, a long spire arm 211.Two short spiral arms 212
It is separately positioned on the both sides of long spire arm 211.Two short spiral arm 212, the lower end of long spire arm 211 link together, and with
Feed port 213 connects.
Second group of spiral arm includes two short spiral arms 222, a long spire arm 221.Two short spiral arm 222 is respectively provided with
On the both sides of long spire arm 221.Two short spiral arm 222, the lower end of long spire arm 221 link together, and and feed port
223 connections.
3rd group of spiral arm includes two articles of short spiral arms 232, a long spire arm 231.Two short spiral arm 232 is respectively provided with
On the both sides of long spire arm 231.Two short spiral arm 232, the lower end of long spire arm 231 link together, and and feed port
233 connections.
4th group of spiral arm includes two articles of short spiral arms 242, a long spire arm 241.Two short spiral arm 242 is respectively provided with
On the both sides of long spire arm 241.Two short spiral arm 242, the lower end of long spire arm 241 link together, and and feed port
243 connections.
In the present embodiment, two short spiral arms of every group of spiral arm are all equal lengths.
In other embodiments, three spiral arms of every group of spiral arm can be two long spire arms, short spiral arms,
Two long spire arms are separately positioned on the both sides of short spiral arm.
In other embodiments, two length spiral arms of every group of spiral arm are all equal lengths.
In the present embodiment, spiral arm (211,212,221,222,231,232,241,242) equidistantly be arranged in parallel.
In the present embodiment, spiral arm is adopted and crosses metal patch, lower end spiral winding of four groups of spiral arms along hollow medium post 1
To the upper end of hollow medium post 1, and laser carving is embedding in the outer surface of the hollow cylinder of hollow medium post 1 or by metal sheet form
In the inner surface of hollow medium post., spiral winding is to can be clockwise or counterclockwise.In the present embodiment, and only
Laser carving mode is not limited to, mode or other modes are alternatively printed.
The lead angle of four groups of spiral arms is 55 degree, and the length of long spire arm is 128.5mm, and the length of short spiral arm is equal
For 107.5mm, spiral arm width is 1mm.
Refer to Fig. 5, feed assembly 3 includes four output ports (31,32,33,34), input port 35, and
Polarization power splitter part 36.Aerial signal is input into from input port 35, through circular polarisation power splitter 36, and from four output ports
(31,32,33,34) export.The output signal of four output ports (31,32,33,34), amplitude are equal, respectively 0 ° of phase place,
90 °, 180 ° and 270 °, i.e. two adjacent output port signal phase differences are 90 °.Feed assembly 3 is arranged on 1 lower end of hollow medium post
Inside, four output ports (31,32,33,34) connect a metal mistake hole, and the feed end with four groups of spiral arms respectively respectively
Mouth (213,223,233,243) connects one to one, i.e., one output port connects a feed port.
In the present embodiment, the power splitter part 36 that polarizes is integrated with polarization and forms network and impedance matching circuit.
Embodiments of the invention be operated in the uplink and downlink 1980～2010MHz of frequency range of S-band satellite communication, 2170～
2200MHz。
The design of the present embodiment, can effectively reduce the diameter and height of antenna, and stabilized structure, it is easy to process.It is logical
The length of long spire arm and short spiral arm is overregulated, makes long spire arm resonance in the high band of antenna, short spiral arm resonance is in day
The low-frequency range of line, for meeting the requirement of mobile-satellite dual band communication transmit-receive sharing.
Embodiment two：
Refer to Fig. 6-Fig. 7.Embodiment two from unlike embodiment one：Four groups of spiral arms long spire arm (211,
221st, 231,241) spiral winding to the short circuit connection to the upper end of hollow medium post 1.Specifically, can be by the spiral of setting in addition
Arm 25 links together.
It should be noted that the upper end of hollow medium post 1：If hollow medium post 1 includes hollow cylinder, hollow semi-round ball
Body, the upper end of the hollow medium post 1 are the top of hollow cylinder.
Embodiment three：
Refer to Fig. 8.Embodiment three from unlike embodiment one：Four groups of spiral arms long spire arm (211,221,
231st, 241) spiral winding to the top of hollow medium post and short circuit connection.Specifically, long spire arm (211,221,231,241)
Apex on the top of hollow medium post 1 links together, and is substantially in " ten " shape on the surface of hollow semicircle spheroid.Long spiral shell
The development length of spiral arm (211,221,231,241) is respectively 15mm.
It should be noted that the upper end of hollow medium post 1：If hollow medium post 1 includes hollow cylinder, hollow semi-round ball
Body, the upper end of the hollow medium post 1 are the outer surface of hollow semicircle spheroid.
Example IV：
Example IV from unlike embodiment one：Long spire arm (211,221, the 231,241) spiral of four groups of spiral arms
Around to the top of hollow medium post, but short circuit connection, i.e. open-circuit condition.
The preferred embodiments of the present invention are these are only, the scope of the claims of the present invention is not thereby limited, it is every using this
Equivalent structure or equivalent flow conversion that bright description and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (9)
1. a kind of helical antenna, including hollow medium post, radiant body and feed assembly；
The hollow medium post is the column structure of lower ending opening upper end closure；
The radiant body includes four groups of spiral arms；Every group of spiral arm includes three spiral arms, and the lower end of three spiral arms is connected to
It is connected together and with the feed port of the group；Four groups of spiral arms equidistantly be arranged in parallel；Four groups of spiral arms are along described
Upper end of the lower end spiral winding of hollow medium post to the hollow medium post；
The feed assembly is arranged on inside the lower end of the hollow medium post；The feed assembly include an input port,
Polarization power splitter part, four output ports；Four output ports are corresponded with the feed port of four groups of spiral arms
Connection；The input port reception antenna signal.
2. a kind of helical antenna as claimed in claim 1, it is characterised in that three spiral arms include two short spiral arms
With a long spire arm, two short spiral arms, the both sides of long spire arm are separately positioned on；
Or three spiral arms include two long spire arms and a short spiral arm, two long spire arms are separately positioned on short
The both sides of spiral arm.
3. a kind of helical antenna as claimed in claim 2, it is characterised in that the long spire arm spiral winding of four groups of spiral arms
To the hollow medium post upper end and short circuit connection.
4. a kind of helical antenna as claimed in claim 2, it is characterised in that the long spire arm spiral winding of four groups of spiral arms
To the top of the hollow medium post.
5. a kind of helical antenna as claimed in claim 4, it is characterised in that the long spire arm of four groups of spiral arms is described
The top short circuit connection of hollow medium post.
6. a kind of helical antenna as claimed in claim 4, it is characterised in that the long spire arm of four groups of spiral arms is described
The top of hollow medium post is in open-circuit condition.
7. a kind of helical antenna as described in claim 4 or 6 is arbitrary, it is characterised in that the long spire of four groups of spiral arms
Arm is in " ten " shape in the outer surface of the hollow semicircle spheroid.
8. a kind of helical antenna as claimed in claim 1, it is characterised in that the polarization power splitter part is integrated with polarization and is formed
Network and impedance matching circuit.
9. a kind of helical antenna as claimed in claim 1, it is characterised in that four groups of spiral arms pass through laser carving or printing side
Formula is arranged on the outer surface of hollow medium post or is embedded in the inner surface of hollow medium post by metal sheet form.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016105069040 | 2016-06-29 | ||
| CN201610506904 | 2016-06-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106532233A true CN106532233A (en) | 2017-03-22 |
Family
ID=58343537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610576467.XA Pending CN106532233A (en) | 2016-06-29 | 2016-07-20 | Helical antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106532233A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108281768A (en) * | 2018-01-23 | 2018-07-13 | 深圳星联天通科技有限公司 | A kind of dual-band antenna and its terminal |
| CN109546301A (en) * | 2018-10-15 | 2019-03-29 | 西安理工大学 | A kind of satellite navigation reception two-fold arm four-arm spiral antenna of miniaturization |
| CN110832700A (en) * | 2019-01-17 | 2020-02-21 | 深圳市大疆创新科技有限公司 | Double-frequency quadrifilar helix antenna and communication equipment |
| WO2020087390A1 (en) * | 2018-10-31 | 2020-05-07 | 深圳市大疆创新科技有限公司 | Helical antenna and communication device |
| WO2020087391A1 (en) * | 2018-10-31 | 2020-05-07 | 深圳市大疆创新科技有限公司 | Spiral antenna and communication device |
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|---|---|---|---|---|
| CN201188448Y (en) * | 2008-02-18 | 2009-01-28 | 庆陞工业股份有限公司 | Symmetrical array dipolar ultra-wide band antenna structure |
| US8941551B2 (en) * | 2012-04-16 | 2015-01-27 | Vasilios Mastoropoulos | Ground connecting system for plane and helical microwave antenna structures |
| CN204760533U (en) * | 2015-05-27 | 2015-11-11 | 深圳光启智能光子技术有限公司 | Antenna device |
| CN204760536U (en) * | 2015-07-08 | 2015-11-11 | 西安星网天线技术有限公司 | Miniaturized handheld terminal of mobile satellite communication antenna |
| CN105305060A (en) * | 2015-11-30 | 2016-02-03 | 中国计量学院 | Front circular ring with internal cross center feed antenna |
-
2016
- 2016-07-20 CN CN201610576467.XA patent/CN106532233A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201188448Y (en) * | 2008-02-18 | 2009-01-28 | 庆陞工业股份有限公司 | Symmetrical array dipolar ultra-wide band antenna structure |
| US8941551B2 (en) * | 2012-04-16 | 2015-01-27 | Vasilios Mastoropoulos | Ground connecting system for plane and helical microwave antenna structures |
| CN204760533U (en) * | 2015-05-27 | 2015-11-11 | 深圳光启智能光子技术有限公司 | Antenna device |
| CN204760536U (en) * | 2015-07-08 | 2015-11-11 | 西安星网天线技术有限公司 | Miniaturized handheld terminal of mobile satellite communication antenna |
| CN105305060A (en) * | 2015-11-30 | 2016-02-03 | 中国计量学院 | Front circular ring with internal cross center feed antenna |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108281768A (en) * | 2018-01-23 | 2018-07-13 | 深圳星联天通科技有限公司 | A kind of dual-band antenna and its terminal |
| CN109546301A (en) * | 2018-10-15 | 2019-03-29 | 西安理工大学 | A kind of satellite navigation reception two-fold arm four-arm spiral antenna of miniaturization |
| WO2020087390A1 (en) * | 2018-10-31 | 2020-05-07 | 深圳市大疆创新科技有限公司 | Helical antenna and communication device |
| WO2020087391A1 (en) * | 2018-10-31 | 2020-05-07 | 深圳市大疆创新科技有限公司 | Spiral antenna and communication device |
| CN110832700A (en) * | 2019-01-17 | 2020-02-21 | 深圳市大疆创新科技有限公司 | Double-frequency quadrifilar helix antenna and communication equipment |
| WO2020147070A1 (en) * | 2019-01-17 | 2020-07-23 | 深圳市大疆创新科技有限公司 | Dual-frequency four-arm helical antenna and communication device |
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