CN112615131B - Method for optimizing performance of four-arm helical antenna - Google Patents
Method for optimizing performance of four-arm helical antennaDownload PDFInfo
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- CN112615131B CN112615131BCN202011314073.XACN202011314073ACN112615131BCN 112615131 BCN112615131 BCN 112615131BCN 202011314073 ACN202011314073 ACN 202011314073ACN 112615131 BCN112615131 BCN 112615131B
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- 239000002184metalSubstances0.000claimsabstractdescription46
- 230000008878couplingEffects0.000claimsdescription5
- 238000010168coupling processMethods0.000claimsdescription5
- 238000005859coupling reactionMethods0.000claimsdescription5
- 238000004519manufacturing processMethods0.000abstractdescription6
- 239000004020conductorSubstances0.000description3
- 238000012986modificationMethods0.000description3
- 230000004048modificationEffects0.000description3
- 239000000463materialSubstances0.000description2
- 230000004075alterationEffects0.000description1
- 230000005540biological transmissionEffects0.000description1
- 238000004891communicationMethods0.000description1
- 238000010586diagramMethods0.000description1
- 238000012423maintenanceMethods0.000description1
- 239000007769metal materialSubstances0.000description1
- 238000005457optimizationMethods0.000description1
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- 238000012545processingMethods0.000description1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- 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
- H01Q1/48—Earthing means; Earth screens; Counterpoises
- 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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Abstract
Description
Technical Field
The invention relates to the technical field of satellite navigation system antennas, in particular to a method for optimizing performance of a four-arm helical antenna.
Background
In mobile satellite communication earth stations and satellite navigation devices, the antenna is required to have a wide beam characteristic in order to keep the satellite in motion within the coverage of the antenna beam. Meanwhile, the antenna must have broadband (or dual-band operation) characteristics so as to share one antenna for transmission and reception. At present, people usually use a quadrifilar helical antenna as a receiving antenna of a satellite positioning system, wherein the quadrifilar helical antenna is composed of four helical arms, and the length of each helical arm is integral multiple of a quarter wavelength. The four spiral arm feed ends have equal current amplitudes, have 90-degree phase difference in sequence, have a heart-shaped directional diagram, good front-back ratio and excellent wide-beam circular polarization characteristics, and are very suitable for being used as a receiving antenna of a satellite positioning system.
However, in order to achieve the characteristic of dual-frequency operation, the existing four-arm helical antenna generally adopts a quarter-wavelength helical line, but the antenna adopting the quarter-wavelength helical line is slightly inferior to the antenna adopting a half-wavelength helical line in overall performance, although chinese patent with publication number CN1037302C discloses a grounded multi-arm helical antenna, which realizes the characteristic of dual-frequency operation through two sets of four-arm helical antennas adopting the half-wavelength helical line, in the technical scheme, the four-arm helical antenna has a simple structure, only supports two sets of helical lines by a support rod and a connecting seat in the middle, and the helical line is not supported, so that the consistency of the helical line is difficult to guarantee in production and manufacture, and the helical line is more easily deformed in later use, and the performance is influenced.
Disclosure of Invention
In order to solve the above technical problems, an object of the present invention is to provide a method for optimizing performance of a quadrifilar helical antenna, which makes the antenna stable in performance and compact in structure.
In order to realize the invention, the invention adopts the following technical scheme:
the utility model provides an optimization method of four arm helical antenna performance, this antenna includes base, first rotator and second rotator all include the top end face to and many spiral arms that are the heliciform extension downwards along the top end face, and first rotator and second rotator cover are inserted and are set up or integrated into one piece, and the spiral arm of first rotator and the spiral arm of second rotator set up in proper order in turn, the surface of spiral arm is equipped with the decurrent metal conductor of spiral, and the metal conductor extends to the top end face and intersects, the lower part of spiral arm sets up on the base, be provided with the ground connection metal covering on the base, the lower part and the ground connection metal covering of metal conductor are connected.
Preferably, a plurality of notches are further formed in the outer edge of the top end face of the second rotating body, the notches are located between two adjacent spiral arms, and the first rotating body is inserted into the second rotating body through the notches.
Preferably, at least one bulk metal region is further disposed on the metal wire, and the bulk metal regions on two adjacent metal wires on the first rotating body and the second rotating body form a coupling structure.
Preferably, the distance between the first rotating body and the block metal area on the two adjacent metal leads on the second rotating body is 0.3-4 mm.
Preferably, the top end face and the spiral arm are both provided with grooves, and the metal wire is arranged in the grooves.
Preferably, the number of the spiral arms on the first rotating body or the second rotating body is four, and the grooves on the top end surface are in a cross shape.
Preferably, the lower part of the spiral arm is further provided with a horizontal adjusting line, and the horizontal adjusting line on the first rotating body and the horizontal adjusting line on the second rotating body are staggered in height.
In addition, the two groups of four-arm spiral lines are sleeved and inserted or integrally formed through the two rotating bodies, so that the integral volume of the antenna is greatly reduced while the high-low frequency section signals of the antenna are received.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the disassembled structure of the first rotating body and the second rotating body of the present invention;
fig. 3 is a schematic disassembly structure of the first rotating body and the second rotating body of the present invention.
The reference numbers in the figures are: 1. a first rotating body; 2. a second rotating body; 3. a top end face; 4. A metal wire; 5. a spiral arm; 6. horizontally adjusting the lines; 7. and (4) notches.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, elements, and/or combinations thereof, unless the context clearly indicates otherwise.
Furthermore, in the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The invention is further illustrated by the following examples in conjunction with the following figures:
a method for optimizing the performance of a four-arm helical antenna is disclosed, the structure of the antenna is shown in figures 1 to 3, the antenna comprises a base, a first rotating body 1 and a second rotatingbody 2, the first rotating body 1 and the second rotatingbody 2 are both made of non-metallic materials, the first rotating body 1 and the second rotatingbody 2 both comprisetop end surfaces 3, and a plurality ofspiral arms 5 which spirally extend downwards along thetop end surface 3, the first rotating body 1 and the second rotatingbody 2 are sleeved and inserted or integrally formed, and thespiral arm 5 of the first rotating body 1 and thespiral arm 5 of the second rotatingbody 2 are sequentially and alternately arranged, the surface of thespiral arm 5 is provided with ametal wire 4 which spirals downwards, and the metal lead extends to thetop end surface 3 to intersect, the lower part of thespiral arm 5 is arranged on the base, the base is provided with a grounding metal surface, and the lower part of themetal wire 4 is connected with the grounding metal surface.
When the first rotating body 1 and the second rotatingbody 2 are sleeved and inserted, a plurality ofgaps 7 are arranged on the outer edge of thetop end face 3 of the second rotatingbody 2, thegaps 7 are located between two adjacentspiral arms 5, and the first rotating body 1 is inserted on the second rotatingbody 2 through thegaps 7. First rotator 1 andsecond rotator 2 independently set up, and production is convenient, and the processing degree of difficulty is low and dismouting maintenance is convenient.
The metal wires on the first rotating body 1 and the second rotatingbody 2 may both be fed through the bottom plate, or only one set of metal wires in the first rotating body 1 or the second rotatingbody 2 may be fed through the bottom plate, and the other set of metal wires is fed through the coupling structure. The specific coupling structure is as follows: at least one block-shaped metal area is further arranged on themetal wire 4, and the block-shaped metal areas on twoadjacent metal wires 4 on the first rotating body 1 and the second rotatingbody 2 form a coupling structure. The distance between the first rotating body 1 and the block metal areas on twoadjacent metal wires 4 on the second rotatingbody 2 is 0.3-4 mm.
The metal wire can be arranged on the side walls of the first rotating body 1 and the second rotatingbody 2, and can also be arranged in the following mode, grooves are formed in thetop end face 3 and thespiral arm 5, and the metal wire is arranged in the grooves. The number of thespiral arms 5 on the first rotating body 1 or the second rotatingbody 2 is four, and the grooves on thetop end surface 3 are in a cross shape.
The lower part ofspiral arm 5 still is equipped withhorizontal adjustment line 6, andhorizontal adjustment line 6 on the first rotator 1 and thehorizontal adjustment line 6 on thesecond rotator 2 are crisscross setting in height.
The antenna structure can ensure the miniaturization of the volume, can improve the overall performance of the antenna, particularly the parameters of low elevation gain, has stable overall structure, is more convenient to produce and manufacture, and is suitable for large-scale popularization and production.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although the embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and those skilled in the art can make changes, modifications, substitutions and alterations to the above embodiments without departing from the principle and spirit of the present invention, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention still fall within the technical scope of the present invention.
Claims (5)
1. A method for optimizing the performance of a four-arm helical antenna is characterized in that the antenna comprises a base, a first rotating body (1) and a second rotating body (2), the first rotating body (1) and the second rotating body (2) both comprise a top end surface (3), and a plurality of spiral arms (5) which spirally extend downwards along the top end surface (3), the first rotating body (1) and the second rotating body (2) are sleeved and inserted or integrally formed, the spiral arms (5) of the first rotating body (1) and the spiral arms (5) of the second rotating body (2) are sequentially and alternately arranged, the surfaces of all the spiral arms (5) are provided with metal leads (4) which are downward spirally, the metal conducting wire (4) on the first rotating body (1) extends to the top end face (3) of the first rotating body (1) to be intersected, and the metal conducting wire (4) on the second rotating body (2) extends to the top end face (3) of the second rotating body (2) to be intersected; the quantity of spiral arm (5) on first rotator (1) and the second rotator (2) is four, all is equipped with the recess on two top end face (3) and eight spiral arm (5), and the recess on every top end face (3) all becomes the cross form, the wire sets up in the recess, and the lower part of every spiral arm (5) all sets up on the base, be provided with the ground connection metal covering on the base, the lower part of every wire (4) all is connected with the ground connection metal covering.
2. A method for optimizing the performance of a quadrifilar helix antenna according to claim 1, wherein a plurality of notches (7) are further provided on the outer edge of the top end surface (3) of the second rotating body (2), the notches (7) are located between two adjacent helix arms (5) of the second rotating body (2), and the first rotating body (1) is inserted on the second rotating body (2) through the notches (7).
3. A method for optimizing the performance of a quadrifilar helix antenna according to claim 1, characterized in that at least one bulk metal region is further provided on each metal wire (4), and the first rotating body (1) forms a coupling structure with the bulk metal regions on two adjacent metal wires (4) on the second rotating body (2).
4. The method for optimizing the performance of the quadrifilar helix antenna according to the claim 2, characterized in that the distance between the first rotating body (1) and the block metal areas on the two adjacent metal wires (4) on the second rotating body (2) is 0.3-4 mm.
5. The method for optimizing the performance of the quadrifilar helix antenna according to the claim 1, characterized in that the lower part of each helix arm (5) is also provided with a horizontal adjusting line (6), and the horizontal adjusting lines (6) on the first rotating body (1) and the horizontal adjusting lines (6) on the second rotating body (2) are staggered in height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011314073.XACN112615131B (en) | 2020-11-20 | 2020-11-20 | Method for optimizing performance of four-arm helical antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011314073.XACN112615131B (en) | 2020-11-20 | 2020-11-20 | Method for optimizing performance of four-arm helical antenna |
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| Publication Number | Publication Date |
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| CN112615131A CN112615131A (en) | 2021-04-06 |
| CN112615131Btrue CN112615131B (en) | 2022-07-15 |
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| CN202011314073.XAActiveCN112615131B (en) | 2020-11-20 | 2020-11-20 | Method for optimizing performance of four-arm helical antenna |
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|---|---|---|---|---|
| CN201226373Y (en)* | 2008-07-10 | 2009-04-22 | 华南理工大学 | Dual-band laminated dielectric loaded helical antenna |
| CN105119047A (en)* | 2015-09-16 | 2015-12-02 | 苏州晶讯科技股份有限公司 | Four-arm helical antenna of novel feed structure |
| CN205752527U (en)* | 2016-05-10 | 2016-11-30 | 江苏三和欣创通信科技有限公司 | A kind of multi-arm dual-frequency helical antenna device |
| CN108091987A (en)* | 2017-12-07 | 2018-05-29 | 南京乾波通信技术有限公司 | A kind of satellite communication double frequency round polarized antenna |
| CN208127415U (en)* | 2018-01-25 | 2018-11-20 | 电信科学技术第一研究所有限公司 | A kind of eight arm spiral circular polarisation dual-band antennas suitable for laser direct structuring technique |
| CN110828971A (en)* | 2019-10-18 | 2020-02-21 | 江苏三和欣创通信科技有限公司 | Adjustable stacked multi-arm dual-frequency helical antenna device |
| WO2020114498A1 (en)* | 2018-12-07 | 2020-06-11 | 深圳市华信天线技术有限公司 | Dual-frequency current-balancing quadrifilar helical antenna |
- 2020
- 2020-11-20CNCN202011314073.XApatent/CN112615131B/enactiveActive
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201226373Y (en)* | 2008-07-10 | 2009-04-22 | 华南理工大学 | Dual-band laminated dielectric loaded helical antenna |
| CN105119047A (en)* | 2015-09-16 | 2015-12-02 | 苏州晶讯科技股份有限公司 | Four-arm helical antenna of novel feed structure |
| CN205752527U (en)* | 2016-05-10 | 2016-11-30 | 江苏三和欣创通信科技有限公司 | A kind of multi-arm dual-frequency helical antenna device |
| CN108091987A (en)* | 2017-12-07 | 2018-05-29 | 南京乾波通信技术有限公司 | A kind of satellite communication double frequency round polarized antenna |
| CN208127415U (en)* | 2018-01-25 | 2018-11-20 | 电信科学技术第一研究所有限公司 | A kind of eight arm spiral circular polarisation dual-band antennas suitable for laser direct structuring technique |
| WO2020114498A1 (en)* | 2018-12-07 | 2020-06-11 | 深圳市华信天线技术有限公司 | Dual-frequency current-balancing quadrifilar helical antenna |
| CN110828971A (en)* | 2019-10-18 | 2020-02-21 | 江苏三和欣创通信科技有限公司 | Adjustable stacked multi-arm dual-frequency helical antenna device |
Non-Patent Citations (2)
| Title |
|---|
| RFID标签天线及北斗四臂螺旋天线研究;蔺炜;《中国优秀硕士学位论文全文数据库》;20130115(第一期);全文* |
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| CN112615131A (en) | 2021-04-06 |
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