CN108933326A - A kind of screw cylinder antenna - Google Patents
A kind of screw cylinder antenna Download PDFInfo
- Publication number
- CN108933326A CN108933326A CN201710371980.XA CN201710371980A CN108933326A CN 108933326 A CN108933326 A CN 108933326A CN 201710371980 A CN201710371980 A CN 201710371980A CN 108933326 A CN108933326 A CN 108933326A
- Authority
- CN
- China
- Prior art keywords
- screw cylinder
- metal
- antenna
- notch
- short
- 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.)
- Pending
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Classifications
-
- 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
- H01Q1/36—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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
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- Details Of Aerials (AREA)
Abstract
The present invention relates to antenna technical fields,More particularly to a kind of screw cylinder antenna,Suitable for Internet of Things,Mobile communication application,Including screw cylinder,Metal dish,Metal,Feed line and short-circuit line,Screw cylinder is vertically set on metal on the ground,Screw cylinder is curled by sheet metal around the equidistant helical form of central upright axis perpendicular to metal ground,The top of screw cylinder is arranged in metal dish,Metal dish is with metal parallel,Metal dish is electrically connected with screw cylinder,The area of metal dish is greater than the cross-sectional area of screw cylinder,Notch is internally provided in screw cylinder,Feed line and short-circuit line are arranged at the bottom end of screw cylinder,Outer edge of the feed line close to notch,Inward flange of the short-circuit line close to notch,Short-circuit line with metal is connect,The present invention is reducing monopole antenna height,While reducing antenna size,Obtain higher gain,Extend the scope of application of monopole antenna.
Description
Technical field
The present invention relates to antenna technical field more particularly to a kind of screw cylinder antennas.
Background technique
Vertical monopole antenna is since structure is simple, easily fabricated, and the omnidirectional radiation characteristic with horizontal plane, logical
News field is widely used always.But using traditional technology, monopole antenna has biggish size.To reduce size,
There has been proposed resistance load, with match circuit tune etc. measures, with realize reduce antenna size purpose.But it is all these
Common measure is reduction of the radiation efficiency of antenna, is substantially reduced the gain of antenna, often as soon as having the shortcomings that common
It is often negative gain in 1~2dBi even some monopole antennas, substantially reduces antenna performance, the application of antenna receives limit
System.If there is method can not reduce antenna gain, and the size of antenna can be reduced, that is, can solve above-mentioned contradiction, it is fixed
Monopole subclass antenna can be made to obtain widely application.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the present invention proposes a kind of monopole subclass day with small size
Line causes to increase when overcoming general impedance to load, adding tuning circuit in feeder line and other methods reduction monopole antenna
The shortcomings that benefit decline.Compared with common upright monopole antenna, it can obtain under conditions of peer antenna height and meet condition
Working frequency and higher gain.
In order to achieve the object of the present invention, used technical solution is：A kind of screw cylinder antenna, including borded pile
Face, metal dish and metal, screw cylinder is vertically set on metal on the ground, and screw cylinder is by sheet metal around perpendicular to metal
The equidistant helical form of central upright axis curl into, metal dish is arranged in the top of screw cylinder, metal dish and metal
In parallel, metal dish is electrically connected with screw cylinder, and the area of metal dish is greater than the cross-sectional area of screw cylinder, in screw cylinder
It is internally provided with notch.
As prioritization scheme of the invention, screw cylinder antenna further includes feed line and short-circuit line, feed line and short-circuit line
Be arranged at the bottom end of screw cylinder, feed line close to notch outer edge, short-circuit line close to notch inward flange, short-circuit line with
Connect to metal.
As prioritization scheme of the invention, screw cylinder antenna further includes feed cable, feed line and feed cable it is interior
Conductor is connected, and the outer conductor of feed cable with metal is connected.
As prioritization scheme of the invention, the height h of notch is less than the height H of screw cylinder.
As prioritization scheme of the invention, notch is set up from the bottom end of screw cylinder.
The present invention has the effect of positive：1) present invention has under the conditions of identical working frequency compared with traditional monopole sub-antenna
Lower height realizes the requirement of small size；
2) present invention is compared with reducing the antenna that size is made by measures such as resistance load, additional tuning circuits, tool
There is higher gain；
3) additional metal disk on notch and ground structure, screw cylinder is arranged in screw cylinder and makes to be sent out for inventive antenna
Bright antenna obtains better standing wave and radiation characteristic；
4) coiled structure of screw cylinder of the invention further reduces the size of another dimension of antenna, makes antenna more
It is compact；
5) performance of inventive antenna is insensitive to structure size, and when processing, structure size can have biggish franchise model
It encloses, can easily be accommodated and realize；
6) antenna structure of the invention is simple, low processing cost.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the embodiment of the present invention schematic diagram；
Fig. 3 is the embodiment of the present invention reflection coefficient measured drawing；
Fig. 4 is the embodiment of the present invention antenna pattern.
Wherein：1, screw cylinder, 2, metal dish, 3, metal, 4, feed line, 5, short-circuit line, 11, notch, 61, feed electricity
The inner conductor of cable, 62, the outer conductor of feed cable.
Specific embodiment
As shown in Fig. 1~2, the invention discloses a kind of screw cylinder antennas, including screw cylinder 1, metal dish 2 and metal
Ground 3, screw cylinder 1 is with being vertically set on metal on 3, screw cylinder 1 by sheet metal around perpendicular to metal 3 upright center
The equidistant helical form of axis curls into, and metal dish 2 is arranged in the top of screw cylinder 1, with metal 3 parallel, the gold of metal dish 2
Belong to disk 2 to be electrically connected with screw cylinder 1, the area of metal dish 2 is greater than the cross-sectional area of screw cylinder 1, in screw cylinder 1
Portion's setting jagged 11.Wherein, sheet metal with a thickness of δ, the starting point of screw cylinder 1 is screw cylinder 1 at the center of spiral
Starting point the inward flange of screw cylinder 1 is set；The terminal of screw cylinder 1 is the outermost of spiral, and the terminal of screw cylinder 1 is set
Set the outer edge in screw cylinder 1.From the starting point inward flange appropriate location for leaving screw cylinder 1, along spiral outward from spiral
The lower edge of cylinder 1 cuts a part of proper width on screw cylinder 1 upwards, forms notch 11, the height of notch 11 is not
More than the height of screw cylinder 1.Metal dish 2 covers the section of screw cylinder 1 completely.
Screw cylinder antenna further includes feed line 4 and short-circuit line 5, and feed line 4 and short-circuit line 5 are arranged at screw cylinder 1
Bottom end, close to the outer edge of notch 11, short-circuit line 53 connects to short-circuit line 5 and metal feed line 4 close to the inward flange of notch 11
It connects.Feed line 4 is being set close to the 1 lower edge appropriate location of screw cylinder of the 11 non-cutouts in outside of notch, close to notch
Short-circuit line 5 is arranged in the 1 lower edge appropriate location of screw cylinder of the 11 non-cutouts in inside.
Screw cylinder antenna further includes feed cable, and feed line 4 is connected with the inner conductor 61 of feed cable, feed cable
Outer conductor 62 with metal 3 is connected.
The height h of notch 11 is less than the height H of screw cylinder 1.
Notch 11 is set up from the bottom end of screw cylinder 1.
As shown in Fig. 2, screw cylinder antenna by the screw cylinder 1, metal dish 2, metal with a thickness of δ 3,4 and of feed line
Short-circuit line 5 forms, each parameter such as following table of antenna：
| δ(mm) | 0.3 | a(mm) | 120 |
| b(mm) | 35 | s(mm) | 2.5 |
| H(mm) | 90 | w(mm) | 17.4 |
| h(mm) | 60 |
Wherein, δ is the thickness of sheet metal；A and b be respectively square-shaped metal and metal dish side length；H is borded pile
The height in face 1；H is the height of notch 11；W is the width of notch 11, corresponds to the circumferential lengths of one section of spiral；S is borded pile
The spacing in face.According to above-mentioned design parameter, process actual antenna and be tested, experimental result as shown in figs. 34, Fig. 3
For the reflection coefficient for surveying antenna, Fig. 4 is Pattern measurement as a result, the gain measurements of screw cylinder antenna are 5.4dBi.It is real
It tests the result shows that screw cylinder antenna radiation performance is excellent.
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical scheme and beneficial effects
It describes in detail bright, it should be understood that the above is only a specific embodiment of the present invention, is not intended to restrict the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in guarantor of the invention
Within the scope of shield.
Claims (5)
1. a kind of screw cylinder antenna, it is characterised in that：Including screw cylinder (1), metal dish (2) and metal (3), described
Screw cylinder (1) is with being vertically set on metal on (3), and the screw cylinder (1) is by sheet metal around perpendicular to metal (3)
The equidistant helical form of central upright axis curl into, metal dish (2) be arranged in the top of screw cylinder (1), the gold
Category disk (2) is with metal (3) parallel, and the metal dish (2) is electrically connected with screw cylinder (1), the face of the metal dish (2)
Product is greater than the cross-sectional area of screw cylinder (1), is internally provided with notch (11) in screw cylinder (1).
2. a kind of screw cylinder antenna according to claim 1, it is characterised in that：The screw cylinder antenna further includes
Feed line (4) and short-circuit line (5), the feed line (4) and short-circuit line (5) are arranged at the bottom end of screw cylinder (1), described
Feed line (4) close to notch (11) outer edge, the short-circuit line (5) close to notch (11) inward flange, described is short
Route (5) with metal (3) is connect.
3. a kind of screw cylinder antenna according to claim 2, it is characterised in that：The screw cylinder antenna further includes
Feed cable, the feed line (4) are connected with the inner conductor (61) of feed cable, the outer conductor (62) and metal of feed cable
Ground (3) is connected.
4. a kind of screw cylinder antenna according to claim 1, it is characterised in that：The height h of notch (11) is less than spiral
The height H of cylinder (1).
5. a kind of screw cylinder antenna according to claim 4, it is characterised in that：The notch (11) is from screw cylinder
(1) bottom end is set up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710371980.XA CN108933326A (en) | 2017-05-24 | 2017-05-24 | A kind of screw cylinder antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710371980.XA CN108933326A (en) | 2017-05-24 | 2017-05-24 | A kind of screw cylinder antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108933326A true CN108933326A (en) | 2018-12-04 |
Family
ID=64451291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710371980.XA Pending CN108933326A (en) | 2017-05-24 | 2017-05-24 | A kind of screw cylinder antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108933326A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115663455A (en) * | 2022-10-09 | 2023-01-31 | 荣耀终端有限公司 | Terminal antenna and electronic equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2066580A (en) * | 1979-12-22 | 1981-07-08 | Polytechnic Marine Ltd | Antenna |
| CN1881687A (en) * | 2005-06-13 | 2006-12-20 | 三星电子株式会社 | Broadband antenna system |
| CN102177615A (en) * | 2008-10-10 | 2011-09-07 | Lhc2股份有限公司 | Spiraling surface antenna |
| US20130249756A1 (en) * | 2012-03-23 | 2013-09-26 | Lhc2 Inc | Multi-Slot Common Aperture Dual Polarized Omni-Directional Antenna |
| CN206758643U (en) * | 2017-05-24 | 2017-12-15 | 南京濠暻通讯科技有限公司 | A kind of screw cylinder antenna |
-
2017
- 2017-05-24 CN CN201710371980.XA patent/CN108933326A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2066580A (en) * | 1979-12-22 | 1981-07-08 | Polytechnic Marine Ltd | Antenna |
| CN1881687A (en) * | 2005-06-13 | 2006-12-20 | 三星电子株式会社 | Broadband antenna system |
| CN102177615A (en) * | 2008-10-10 | 2011-09-07 | Lhc2股份有限公司 | Spiraling surface antenna |
| US20130249756A1 (en) * | 2012-03-23 | 2013-09-26 | Lhc2 Inc | Multi-Slot Common Aperture Dual Polarized Omni-Directional Antenna |
| CN206758643U (en) * | 2017-05-24 | 2017-12-15 | 南京濠暻通讯科技有限公司 | A kind of screw cylinder antenna |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115663455A (en) * | 2022-10-09 | 2023-01-31 | 荣耀终端有限公司 | Terminal antenna and electronic equipment |
| CN115663455B (en) * | 2022-10-09 | 2024-03-29 | 荣耀终端有限公司 | Terminal antenna and electronic equipment |
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