CN109037917A - Helical antenna with coupled structure - Google Patents
Helical antenna with coupled structure Download PDFInfo
- Publication number
- CN109037917A CN109037917A CN201810809700.3A CN201810809700A CN109037917A CN 109037917 A CN109037917 A CN 109037917A CN 201810809700 A CN201810809700 A CN 201810809700A CN 109037917 A CN109037917 A CN 109037917A
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- China
- Prior art keywords
- supporter
- helical antenna
- bottom plate
- coupled structure
- radiation body
- Prior art date
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Classifications
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- 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
- H01Q1/362—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith for broadside radiating helical antennas
-
- 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
- H01Q1/14—Supports; Mounting means for wire or other non-rigid radiating elements
-
- 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
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- Details Of Aerials (AREA)
Abstract
The invention discloses a kind of helical antenna with coupled structure, including bottom plate, a supporter is fixed on bottom plate, angle tilts are wound with spiral radiation body and coupling radiator on supporter etc., and the middle part of supporter is equipped with Supporting Media；The bottom end of the spiral radiation body connects with the feed port of bottom plate；Coupling radiator is located between the helix of spiral radiation body, and support external surface is fixed in bottom end；It is the configuration of the present invention is simple, easy to make；On the basis of not increasing additional feed structure, by increasing coupled structure, the Circular polarization ratio of antenna is reduced, helical antenna gain is improved.
Description
Technical field
The present invention relates to communication helical antenna more particularly to a kind of helical antennas with coupled structure.
Technical background
As classical circular polarized antenna, the advantages that end-fire type helical antenna is with circular polarisation function admirable, wave beam wide bandwidth
It is widely used in satellite communication, but there are many deficiencies for the antenna, such as in its ultrabroad band, there can be Circular polarization ratio
The problems such as gain, gain decline.
Summary of the invention
Goal of the invention: in view of the problems of the existing technology, the object of the present invention is to provide one kind to be changed based on coupled structure
The end-fire type helical antenna of kind circular polarisation performance.
Technical solution: a kind of helical antenna with coupled structure, including bottom plate fix a supporter on bottom plate, support
Angle tilts are wound with spiral radiation body and coupling radiator on body etc., and the middle part of supporter is equipped with Supporting Media；The spiral
The bottom end of radiator connects with the feed port of bottom plate；Coupling radiator is located between the helix of spiral radiation body, and bottom end is solid
Due to support external surface.The outer conductor of the feed port connects with the metal layer of bottom plate, and inner conductor passes through bottom plate and spiral
The bottom end of radiator connects.
Preferably, the spiral radiation body and couple radiator top with flushed at the top of supporter.
It is further preferred that the line radius of the line radius ratio spiral radiation body of the coupling radiator is thin.
The supporter is preferably cylindrical.
The utility model has the advantages that compared with prior art, the present invention has following progress: 1, structure is simple, easy to make；2, not
On the basis of increasing additional feed structure, by increasing coupled structure, the Circular polarization ratio of antenna is reduced, spiral day is improved
Line gain.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is structural schematic diagram (underneath side elevation view) of the invention；
When Fig. 3 is with and without coupling radiator, the voltage standing wave ratio of antenna；
When Fig. 4 is with and without coupling radiator, the Circular polarization ratio of antenna；
When Fig. 5 is with and without coupling radiator, the circular polarisation gain of antenna.
Specific embodiment
The technical solution of invention is described further with reference to the accompanying drawing.
As shown in Figs. 1-2, the present invention includes spiral radiation body 1, coupling radiator 2, cylindrical supporter 3,4 and of bottom plate
Feed port 5.Its structural relation are as follows: supporter 3 is fixedly mounted on bottom plate 4, and spiral radiation body 1 is around supporter rotation inclination
Coiling, top are flushed with the top of supporter 3, and bottom end connects with 5 inner conductor of feed port through bottom plate 4；Coupling radiation
Body 2 is located between the helix of spiral radiation body 1, preferably midline position, angularly rotates coiling also around supporter 3,
Its top is also flushed with the top of supporter 3, and bottom end is fixed on supporter 3, and specific location is determined by the electrical characteristics of front end；
The outer conductor of feed port 5 connects with the metal layer of bottom plate 4, and inner conductor passes through bottom plate 4 and connects with 1 bottom end of spiral radiation body.Its
In, the coiling angle of spiral radiation body 1 and coupling radiator 2 depends on according to system index requirement being designed antenna
As a result, generalling use equiangular spiral can meet the requirements.
Except in the case of shown in Fig. 1-2, the case where multiple spiral radiation bodies, for example four-arm spiral antenna also can be set
When, a total input terminal can be used, formed by feeding network and successively differed four of 90 degree and export, to four arms of antenna according to
Secondary feed theoretically can equally increase coupling radiator.
It is further preferred that the line radius of the line radius ratio spiral radiation body 1 of coupling radiator 2 is thin, specifically, to coupling
The line radius for closing radiator 2 does not have particular/special requirement, thinner than spiral radiation body 1, in practical application, usually selects ready-made
Wire body radius material.
In general, supporter 3 can use the shapes such as cylinder, rotary table or circular cone, but when using rotary table and circular cone, spiral
The radiation inclination angle of antenna can change, and bandwidth etc. can also change, therefore the present invention preferably uses cylindrical supporter 3.This
Outside, in practical applications, 3 structure of supporter is if hollow, and antenna is easy to happen deformation, in the case of especially more spirals, usually
Supporting Media can be used at middle part.The present invention is because couple the presence of radiator, it is necessary to use Supporting Media.Supporting Media
Selection has certain influence to antenna performance, but adjustable, specifically, cannot select metal, other do not have particular/special requirement,
Preferably conventional low-k, the material for having certain degree of hardness.
Embodiment:
S frequency range left-hand circular polarization helical antenna, bottom plate radius be 50mm, supporter outer radius be 21.6mm, high 34.6mm,
3.2 circle of spiral radiation body rotation, line radius 1.2mm, 1.9 circle of coupling radiator rotation, line radius 0.9mm, two kinds of radiators
Screw pitch is 9.2mm.
As shown in figure 3, abscissa indicates working frequency, ordinate indicates voltage standing wave ratio, and dotted line is indicated without coupling knot
The voltage standing wave ratio of helical antenna when structure, solid line indicate to have the helical antenna voltage standing wave ratio of coupled structure.Compare two songs
Line, which can be seen that coupled structure, can't reduce or increase the voltage standing wave ratio of helical antenna, but can make voltage standing wave ratio
It is mobile to high frequency direction.
As shown in figure 4, abscissa indicates working frequency, ordinate indicates axial ratio, and dotted line indicates no coupled structure
When helical antenna axial ratio, solid line indicate with coupled structure helical antenna axial ratio.Comparing two curves can
To find out, the axial ratio of the helical antenna with coupled structure is lower, and circular polarisation performance is more excellent.
As shown in figure 5, abscissa indicates working frequency, ordinate indicates left-hand circular polarization gain, and dotted line indicates no coupling
The gain of helical antenna when closing structure, solid line indicate the gain of the helical antenna with coupled structure.Comparing two curves can be with
Find out, the gain of the helical antenna with coupled structure is higher, and performance is more excellent.
Claims (5)
1. a kind of helical antenna with coupled structure, it is characterised in that: including bottom plate, a supporter is fixed on bottom plate, is supported
Angle tilts are wound with spiral radiation body and coupling radiator on body etc., and the middle part of supporter is equipped with Supporting Media；The spiral
The bottom end of radiator connects with the feed port of bottom plate；Coupling radiator is located between the helix of spiral radiation body, and bottom end is solid
Due to support external surface.
2. the helical antenna according to claim 1 with coupled structure, it is characterised in that: the spiral radiation body and coupling
Close radiator top with flushed at the top of supporter.
3. the helical antenna according to claim 1 with coupled structure, it is characterised in that: the line of the coupling radiator
The line radius of radius ratio spiral radiation body is thin.
4. the helical antenna according to claim 1 with coupled structure, it is characterised in that: the outer of the feed port is led
Body connects with the metal layer of bottom plate, and inner conductor passes through bottom plate and connects with the bottom end of spiral radiation body.
5. the helical antenna according to claim 1 with coupled structure, it is characterised in that: the supporter is cylinder
Shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810809700.3A CN109037917A (en) | 2018-07-23 | 2018-07-23 | Helical antenna with coupled structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810809700.3A CN109037917A (en) | 2018-07-23 | 2018-07-23 | Helical antenna with coupled structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109037917A true CN109037917A (en) | 2018-12-18 |
Family
ID=64645051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810809700.3A Pending CN109037917A (en) | 2018-07-23 | 2018-07-23 | Helical antenna with coupled structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109037917A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113314836A (en) * | 2021-06-11 | 2021-08-27 | 广东工业大学 | Omnidirectional circularly polarized helical antenna with coupling structure |
| CN114784482A (en) * | 2022-05-27 | 2022-07-22 | 湖南大学 | Inflatable axial mode helical antenna |
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| CN1195905A (en) * | 1997-02-19 | 1998-10-14 | 摩托罗拉公司 | Multi-band antenna structure |
| JPH11330843A (en) * | 1998-05-11 | 1999-11-30 | Nec Corp | Helical antenna |
| US6545649B1 (en) * | 2001-10-31 | 2003-04-08 | Seavey Engineering Associates, Inc. | Low backlobe variable pitch quadrifilar helix antenna system for mobile satellite applications |
| TW200627708A (en) * | 2005-01-27 | 2006-08-01 | Univ Nat Taiwan | Bifilar helical antenna |
| CN101154762A (en) * | 2006-09-29 | 2008-04-02 | 香港城市大学 | Double-ellipse helical antenna |
| CN102709677A (en) * | 2012-05-22 | 2012-10-03 | 西安电子科技大学 | Multi-mode and multi-frequency circularly polarized receiving antenna for positioning Beidou second generation satellite |
| CN102856647A (en) * | 2012-09-13 | 2013-01-02 | 中国航天科技集团公司第五研究院第五一三研究所 | Method for adjusting direction of elevation angle of radiation pattern of S-band helical antenna |
| CN203300786U (en) * | 2013-06-09 | 2013-11-20 | 北京宇航系统工程研究所 | Broadband missile-borne measuring-controlling antenna |
| CN204464476U (en) * | 2015-04-08 | 2015-07-08 | 西安星网天线技术有限公司 | Low section high-gain broadband spiral antenna with circular polarization |
| CN205646139U (en) * | 2016-01-13 | 2016-10-12 | 深圳华天信通科技有限公司 | Four arm helical antenna devices of qxcomm technology |
| CN207587960U (en) * | 2017-11-30 | 2018-07-06 | 福州大学 | A kind of helical antenna of double frequency omnibearing coupling detail loading |
| CN208522083U (en) * | 2018-07-23 | 2019-02-19 | 南京华讯方舟通信设备有限公司 | Helical antenna with coupled structure |
-
2018
- 2018-07-23 CN CN201810809700.3A patent/CN109037917A/en active Pending
Patent Citations (12)
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|---|---|---|---|---|
| CN1195905A (en) * | 1997-02-19 | 1998-10-14 | 摩托罗拉公司 | Multi-band antenna structure |
| JPH11330843A (en) * | 1998-05-11 | 1999-11-30 | Nec Corp | Helical antenna |
| US6545649B1 (en) * | 2001-10-31 | 2003-04-08 | Seavey Engineering Associates, Inc. | Low backlobe variable pitch quadrifilar helix antenna system for mobile satellite applications |
| TW200627708A (en) * | 2005-01-27 | 2006-08-01 | Univ Nat Taiwan | Bifilar helical antenna |
| CN101154762A (en) * | 2006-09-29 | 2008-04-02 | 香港城市大学 | Double-ellipse helical antenna |
| CN102709677A (en) * | 2012-05-22 | 2012-10-03 | 西安电子科技大学 | Multi-mode and multi-frequency circularly polarized receiving antenna for positioning Beidou second generation satellite |
| CN102856647A (en) * | 2012-09-13 | 2013-01-02 | 中国航天科技集团公司第五研究院第五一三研究所 | Method for adjusting direction of elevation angle of radiation pattern of S-band helical antenna |
| CN203300786U (en) * | 2013-06-09 | 2013-11-20 | 北京宇航系统工程研究所 | Broadband missile-borne measuring-controlling antenna |
| CN204464476U (en) * | 2015-04-08 | 2015-07-08 | 西安星网天线技术有限公司 | Low section high-gain broadband spiral antenna with circular polarization |
| CN205646139U (en) * | 2016-01-13 | 2016-10-12 | 深圳华天信通科技有限公司 | Four arm helical antenna devices of qxcomm technology |
| CN207587960U (en) * | 2017-11-30 | 2018-07-06 | 福州大学 | A kind of helical antenna of double frequency omnibearing coupling detail loading |
| CN208522083U (en) * | 2018-07-23 | 2019-02-19 | 南京华讯方舟通信设备有限公司 | Helical antenna with coupled structure |
Non-Patent Citations (3)
| Title |
|---|
| T.MILLIGAN ET AL: ""The aperture-coupled helix antenna"", 《》, vol. 37, no. 3, pages 47 - 50, XP000511199, DOI: 10.1109/74.388818 * |
| 崔超等: "\"法向模螺旋天线近场耦合的研究\"", 《信息技术》, no. 8, pages 150 - 152 * |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113314836A (en) * | 2021-06-11 | 2021-08-27 | 广东工业大学 | Omnidirectional circularly polarized helical antenna with coupling structure |
| CN113314836B (en) * | 2021-06-11 | 2023-04-25 | 广东工业大学 | Omnidirectional circular polarization normal mode spiral antenna |
| CN114784482A (en) * | 2022-05-27 | 2022-07-22 | 湖南大学 | Inflatable axial mode helical antenna |
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Effective date of registration: 20220421 Address after: 430073 room 14, 15 / F, unit 2, building 2 and 3, wudahui Park, phase V, National Geospatial Information Industry base, No. 1-1 and-2, wudayuan Fourth Road, Wuhan East Lake New Technology Development Zone, Wuhan, Hubei Province Applicant after: WUHAN HUAXUN GUORONG TECHNOLOGY CO.,LTD. Address before: Room 1002, 301 Hanzhongmen street, Gulou District, Nanjing City, Jiangsu Province, 210000 Applicant before: CHINA COMMUNICATION TECHNOLOGY (NANJING) Co.,Ltd. |
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