CN106058439A - Miniature meander loop high frequency antenna and simulation method - Google Patents
Miniature meander loop high frequency antenna and simulation method Download PDFInfo
- Publication number
- CN106058439A CN106058439A CN201610313268.XA CN201610313268A CN106058439A CN 106058439 A CN106058439 A CN 106058439A CN 201610313268 A CN201610313268 A CN 201610313268A CN 106058439 A CN106058439 A CN 106058439A
- Authority
- CN
- China
- Prior art keywords
- antenna
- high frequency
- groove
- miniaturization
- meander
- 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.)
- Granted
Links
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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Evolutionary Computation (AREA)
- Geometry (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Details Of Aerials (AREA)
- Waveguide Aerials (AREA)
Abstract
The present invention provides a miniature meander loop high frequency antenna. By a fractal technology of slotting on the high frequency antenna of the present invention, the resonant frequency of the antenna can be reduced effectively, and further the sizes of the parts of the antenna can be reduced, and accordingly the miniaturization is realized. Meanwhile, along with the reduction of the resonant frequency, an input impedance real component of the antenna at a low frequency band is improved, and the radiation efficiency and gain of the antenna are improved.
Description
Technical field
The present invention relates to antenna technology, especially high frequency antenna technical field.
Background technology
For wireless communication system, antenna is one of most important parts.The one good antenna of secondary design can be shared and be
The requirement united the performance improving whole system.Antenna is used for radiating or receiving electromagnetic wave as system unit.It can be said that antenna
Being electromagnetic transducer, antenna is equivalent to the eyes effect for people for a communication system.High frequency antenna can be real
Communication the most remote, non-relay, is widely used in military affairs, maritime affairs, air line and global broadcast.If ground that need not be expensive
Face and satellite facility, then high-frequency communication is exactly communication mode that uniquely can be covering the whole world.Therefore high frequency antenna is remote
The necessary component of communication, its performance decides the quality of whole high frequency communication system performance.
The size of antenna is closely related with the wavelength of its working frequency range electromagnetic wave, when wavelength and antenna size are analogous
Waiting, antenna reaches best effects for the electromagnetism wave energy radiating or receiving this wavelength.The operating frequency of antenna is the lowest, its corresponding ripple
The longest, it is desirable to the physical size of antenna is the biggest.High frequency antenna operating frequency section is 2-30MHz, and therefore antenna size is relatively
Greatly.Along with the development of technology, the antenna such as airborne, vehicle-mounted is more and more less for the requirement of size.And physical size is significantly less than it
There are the biggest quality factor in the antenna of operation wavelength, say, that its energy storage can be substantially reduced far more than radiation, efficiency.
Loop line antenna is one of the most conventional high frequency antenna of superior performance, but loop line antenna exists size relatively
Greatly, the loop line antenna that size is little exists that antenna feed impedance real part is less, efficiency and the shortcoming such as gain is relatively low.Such as, document [1]
[Wang Naizhi, Li Jianzhou, Xu Jiadong. airborne hidden short-wave antenna design [J]. electronic information journal, 2011,33 (2): 504-
508.] in, loop line high frequency antenna is a size of: length 285cm, lower wide face width degree 50cm, and upper leptoprosopy width 30cm, highly 40cm are whole
Body size is bigger.The significant challenge of HF communication equipment development is also antenna size miniaturization issues, is therefore ensureing that loop line is high
Frequently realize antenna miniaturization on the premise of antenna key property and become our research direction.
Common antenna miniaturization techniques has loading technique and fractal technology two kinds.Loading technique convenient with it and effectively and
It is widely used.Fractal technology realizes antenna miniaturization by effectively reducing the resonant frequency of antenna, and then is widely studied,
But fractal technology is used for printed antenna, due to the restriction of technological level, fractal structure is difficult to apply on high frequency antenna.This
Inventing for this problem, utilize meander effect, research realizes the miniaturization of loop line high frequency antenna by simple fractal structure.
From the point of view of the result in document [1], common high frequency loop line antenna is 0.13 at the input impedance real part of 2MHz-4MHz
Ω-0.16 Ω, directive gain in the difference of-35dB, maximum gain and least gain at more than 10dB, resonant frequency at 24MHz,
Antenna length 285cm, wide face width degree 50cm, leptoprosopy width 30cm, highly 40cm.Therefore, this high frequency antenna input impedance real part
Less, it is relatively low to mate difficulty, antenna efficiency and gain between antenna with antenna tuner, and the length of antenna and height dimension
Relatively large.
Summary of the invention
Solve the technical problem that
In place of the deficiencies in the prior art, the present invention proposes a kind of miniaturization meander loop line high frequency antenna and emulation
Method, meet the electrical performance indexes such as the input impedance of original antenna, efficiency, gain constant in the case of, it is achieved to high frequency sky
The miniaturization of line,
Technical scheme
A kind of miniaturization meander loop line high frequency antenna, including open circuit end face, short circuit end face, upper leptoprosopy and lower wide face, short
Presenting on terminal face with characteristic impedance is 50 Ω coaxial excitation；It is characterized in that being formed at the asymmetric groove that has of upper leptoprosopy the right and left
One meander effect.
When the operating frequency of antenna is 2MHz-30MHz, and rectangular channel quantity is 5, at upper leptoprosopy distance short-circuit end 300mm,
Rectangular channel, flute length 230mm, groove width 30mm is opened successively every 30mm.
The emulation mode that a kind of miniaturization meander loop line high frequency antenna is carried out, it is characterised in that step is as follows:
Step 1: by loop line antenna modeling and simulating in HFSS of original size, record its every electrical performance indexes；
Step 2: open three grooves about upper leptoprosopy centre position successively, to form meander effect；Swept by HFSS parameter
Retouch, according to original position of most preferably slotting at antenna electric performance optimization；
Step 3: on the premise of fluting original position and the length of groove, width, spacing are the most constant, swept by HFSS parameter
Retouch, according to quantity of most preferably slotting at antenna electric performance optimization；
Step 4: on the premise of fluting original position and fluting quantity are constant, then determine the length of groove, width, spacing three
During person's optimum efficiency, both in fixing three, according to the antenna performance index optimization third party；
Step 5: the preferred plan of step 1-4 optimization be applied on original size antenna, reduces in units of 50mm
Antenna length；When the antenna electric performance index after reduction is more or less the same with original size antenna electric performance index, sky now
Linear dimension is maximum degree of miniaturization size.
Beneficial effect
A kind of miniaturization meander loop line high frequency antenna and emulation mode that the present invention proposes, by the present invention in high frequency sky
Slot on line this fractal technology, can effectively reduce antenna resonant frequency, and then antenna sections size can be reduced, it is achieved
Miniaturization.Simultaneously along with the decline of resonant frequency, antenna increases at the input impedance real part of low-frequency range, improves antenna
Radiation efficiency and gain.
Accompanying drawing explanation
Fig. 1 is basic loop line high frequency antenna model schematic
Fig. 2 is the Fractal Slot model schematic of the present invention
Detailed description of the invention
In conjunction with embodiment, accompanying drawing, the invention will be further described:
The fractal structure on high frequency antenna designed by the present invention is:
Having the both sides of the part that electric current flows through, successively left and right fluting on high frequency antenna, adjacent two grooves are on current direction
Must there is overlap so that electric current non-rectilinear circulates, and then form the meander effect in fractal technology, limit and extend the stream of electric current
Dynamic path.
In high-frequency band, slot each time, be equivalent to the most fractal, add the current direction effective length of antenna,
Being formed one section little " meander ", being equivalent to slotted section on antenna increases by one section of inductance.Computing formula according to resonant frequency:
Understanding, L is the biggest, and resonant frequency f is the lowest, and then can be to antenna miniaturization, and the input impedance real part of low-frequency range
Improve the most therewith.But being as the increase of fractal number of times, the resonant frequency of antenna declines increasingly slower, and in resonant frequency
The radiation resistance at place slightly reduces.It is to say, when fractal number of times increases to some, the performance of antenna also tends to satisfy
With.This is because the small radiation element of high order fractal generation is much smaller than wavelength, little to the radiation effect of antenna.But also note simultaneously
Meaning affects directional diagram to owing to the fractal meander effect caused may result in more serious cross polarization phenomenon.The most fractal
Depending on number of times should require according to antenna performance.
Fractal structure designed by the present invention is applicable to the fluting of various modes on high frequency antenna.Below with high at loop line
Frequently as a example by opening rectangular channel design on antenna, model such as Fig. 1, technology involved in the present invention is illustrated.
The equivalent model of loop line antenna common in document [1] is similar to a terminal short circuit, feedback with characteristic impedance for 50
The ribbon feeder of Ω coaxial excitation, size and electrical property are the most poor.
According to loop line antenna structure, preferred option is to slot at the upper leptoprosopy that CURRENT DISTRIBUTION is bigger.By at antenna structure
Upper fluting, limits and extends the flow path of electric current, and then reach the meander effect in fractal technology.As shown in Figure 2.
The factor affecting the mode of grooving designed by the present invention mainly has: the position of groove, the quantity of groove, the width of groove and length
Degree, separation.
Provide the analysis method of these four influence factors separately below:
The position of groove.Loop line high frequency antenna mainly has open circuit end face, short circuit end face, upper leptoprosopy and lower wide face four part group
Become.CURRENT DISTRIBUTION is by being followed successively by weak part by force: short circuit end face, upper leptoprosopy, open circuit end face, lower wide face.First-selected at electric current
Big part fluting, is more conducive to change antenna performance index.But experimental result shows, short-circuit end surface current is excessive, due to groove with
Coupling effect between groove, the width of groove and length is too small can not change electric current flow to path.The width of groove and length are opened
Excessive, it is not enough to again increase the effective length of electric current.Therefore, optimal slotting position is leptoprosopy fluting on loop line.
The quantity of groove is second largest influence factor.The quantity of groove is equal to fractal number of times, in accordance with the above, when fractal time
When number increases to some, the performance of antenna also tends to saturated, therefore the quantity of groove is also unsuitable too much.Determine groove quantity this
During one second influence factor, need to ensure that the length and width of groove and separation are constant, in the electromagnetic simulation software such as HFSS, logical
Cross the quantity changing groove, observe the property indices of antenna, determine therefrom that out quantity of most preferably slotting.
The width of groove, length and separation are the 3rd influence factor.The width of groove is wide, can cause two separation mistakes
Little, coupling effect occurs.Too short being not enough to of the length of groove changes current direction, and long meeting causes edge current excessive.Separation
As the impact effect of the width of groove.When determining this three's optimum efficiency, on the premise of the quantity of groove is constant, fix three
Both in person, according to the antenna performance index optimization third party.
On high frequency loop line antenna in document [1], leptoprosopy carries out fractal technology, and through simulation optimization, preferred plan is:
Distance short-circuit end 300mm, opens rectangular channel, flute length 230mm, groove width 30mm successively every about 30mm, the electricity substantially being finally reached
Performance indications are:
2MHz-4MHz input impedance: 0.2 Ω-0.4 Ω
2MHz-4MHz directional diagram: gain is all less than 8dB in more than-25dB, maximum gain and least gain difference
Resonant frequency: 18.5MHz
Visible, by the technology of the present invention, high frequency loop line antenna has obtained preferably changing at the electrical performance indexes of low-frequency range
Kind.Meanwhile, resonant frequency reduces nearly 6MHz, with this, antenna size can also carry out miniaturization: antenna length is reduced to by list
Performance indications when performance indications during 2400mm and non-foreshortened length are essentially identical.
Emulation mode is as follows:
Step 1: by loop line antenna modeling and simulating in HFSS of original size, record its every electrical performance indexes；
Step 2: open three grooves about upper leptoprosopy centre position successively, to form meander effect；Swept by HFSS parameter
Retouch, according to original position of most preferably slotting at antenna electric performance optimization；
Step 3: on the premise of fluting original position and the length of groove, width, spacing are the most constant, swept by HFSS parameter
Retouch, according to quantity of most preferably slotting at antenna electric performance optimization；
Step 4: on the premise of fluting original position and fluting quantity are constant, then determine the length of groove, width, spacing three
During person's optimum efficiency, both in fixing three, according to the antenna performance index optimization third party；
Step 5: the preferred plan of step 1-4 optimization be applied on original size antenna, reduces in units of 50mm
Antenna length；When the antenna electric performance index after reduction is more or less the same with original size antenna electric performance index, sky now
Linear dimension is maximum degree of miniaturization size.
Claims (3)
1. a miniaturization meander loop line high frequency antenna, including open circuit end face, short circuit end face, upper leptoprosopy and lower wide face, in short circuit
Presenting on end face with characteristic impedance is 50 Ω coaxial excitation；It is characterized in that forming one at the asymmetric groove that has of upper leptoprosopy the right and left
Individual meander effect.
A kind of miniaturization meander loop line high frequency antenna the most according to claim 1, it is characterised in that: when the work frequency of antenna
Rate is 2MHz-30MHz, and rectangular channel quantity is 5, at upper leptoprosopy distance short-circuit end 300mm, opens rectangular channel successively every 30mm,
Flute length 230mm, groove width 30mm.
3. the emulation mode that the miniaturization meander loop line high frequency antenna described in claim 1 is carried out, it is characterised in that step
Rapid as follows:
Step 1: by loop line antenna modeling and simulating in HFSS of original size, record its every electrical performance indexes；
Step 2: open three grooves about upper leptoprosopy centre position successively, to form meander effect；By HFSS parameter scanning, depend on
According to original position of most preferably slotting at antenna electric performance optimization；
Step 3: on the premise of fluting original position and the length of groove, width, spacing are the most constant, by HFSS parameter scanning,
According to quantity of most preferably slotting at antenna electric performance optimization；
Step 4: on the premise of fluting original position and fluting quantity are constant, then determine the length of groove, width, spacing three
During good effect, both in fixing three, according to the antenna performance index optimization third party；
Step 5: the preferred plan of step 1-4 optimization be applied on original size antenna, reduces antenna in units of 50mm
Length；When the antenna electric performance index after reduction is more or less the same with original size antenna electric performance index, antenna chi now
Very little is maximum degree of miniaturization size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610313268.XA CN106058439B (en) | 2016-05-12 | 2016-05-12 | A kind of emulation mode of miniaturization meander loop line high frequency antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610313268.XA CN106058439B (en) | 2016-05-12 | 2016-05-12 | A kind of emulation mode of miniaturization meander loop line high frequency antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106058439A true CN106058439A (en) | 2016-10-26 |
| CN106058439B CN106058439B (en) | 2018-12-18 |
Family
ID=57176954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610313268.XA Expired - Fee Related CN106058439B (en) | 2016-05-12 | 2016-05-12 | A kind of emulation mode of miniaturization meander loop line high frequency antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106058439B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106887679A (en) * | 2017-04-06 | 2017-06-23 | 西北工业大学 | A kind of restructural shortwave loop line antenna |
| CN108400430A (en) * | 2018-02-06 | 2018-08-14 | 中兴通讯股份有限公司 | A kind of antenna assembly and terminal |
| CN109145327A (en) * | 2017-06-27 | 2019-01-04 | 大唐移动通信设备有限公司 | A kind of the fluting setting method and device of microstrip antenna |
| CN110889220A (en) * | 2019-11-22 | 2020-03-17 | 北航（四川）西部国际创新港科技有限公司 | Novel ADS-B, TCAS antenna sharing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101924273A (en) * | 2009-06-17 | 2010-12-22 | 神讯电脑(昆山)有限公司 | Wireless local area network broadband dual-band antenna |
| CN102195127A (en) * | 2010-03-03 | 2011-09-21 | 神讯电脑(昆山)有限公司 | Double-frequency inverted-F-shaped antenna |
| CN104515940A (en) * | 2014-12-19 | 2015-04-15 | 西安交通大学 | Ultra-high-frequency sensor for monitoring partial discharge in switch cabinet online |
-
2016
- 2016-05-12 CN CN201610313268.XA patent/CN106058439B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101924273A (en) * | 2009-06-17 | 2010-12-22 | 神讯电脑(昆山)有限公司 | Wireless local area network broadband dual-band antenna |
| CN102195127A (en) * | 2010-03-03 | 2011-09-21 | 神讯电脑(昆山)有限公司 | Double-frequency inverted-F-shaped antenna |
| CN104515940A (en) * | 2014-12-19 | 2015-04-15 | 西安交通大学 | Ultra-high-frequency sensor for monitoring partial discharge in switch cabinet online |
Non-Patent Citations (1)
| Title |
|---|
| 刘娜等: "复合材料垂尾隐蔽式短波天线研究", 《通信技术》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106887679A (en) * | 2017-04-06 | 2017-06-23 | 西北工业大学 | A kind of restructural shortwave loop line antenna |
| CN106887679B (en) * | 2017-04-06 | 2019-05-10 | 西北工业大学 | A kind of restructural shortwave loop line antenna |
| CN109145327A (en) * | 2017-06-27 | 2019-01-04 | 大唐移动通信设备有限公司 | A kind of the fluting setting method and device of microstrip antenna |
| CN109145327B (en) * | 2017-06-27 | 2021-10-29 | 大唐移动通信设备有限公司 | Slotting setting method and device for microstrip antenna |
| CN108400430A (en) * | 2018-02-06 | 2018-08-14 | 中兴通讯股份有限公司 | A kind of antenna assembly and terminal |
| CN110889220A (en) * | 2019-11-22 | 2020-03-17 | 北航（四川）西部国际创新港科技有限公司 | Novel ADS-B, TCAS antenna sharing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106058439B (en) | 2018-12-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Chou et al. | All polarization receiving rectenna with harmonic rejection property for wireless power transmission | |
| CN207690998U (en) | Microstrip patch antenna with broadband high gain | |
| AU2018423290B2 (en) | Antenna system and terminal device | |
| CN106058439A (en) | Miniature meander loop high frequency antenna and simulation method | |
| DE202018006657U1 (en) | Three-slot antenna device | |
| CN110401026A (en) | A kind of magnetoelectricity dipole filter antenna with approximate ellipse filter response | |
| CN107785661A (en) | A kind of uncoupling array antenna based on double frequency Meta Materials | |
| CN204011730U (en) | A kind of broadband rectangular microstrip array antenna | |
| CN107171043A (en) | Improve ultra-wide band connection frequency selection surface and its design method of angle stability | |
| KR20130131620A (en) | Antenna using the absorber based on meta-structure | |
| CN204257819U (en) | Multiband wideband anti-metal antenna | |
| CN105977625B (en) | A kind of micro-strip array antenna with harmonic restraining function | |
| CN107069232A (en) | The RCS reducing techniques of micro-strip paster antenna | |
| CN107611575A (en) | A kind of end-on-fire antenna based on surface wave guide Yu super surface absorber composite construction | |
| CN206412474U (en) | 5G communication high isolation omni-directional array antennas | |
| CN105514598A (en) | Small coplanar waveguide fed broadband antenna | |
| CN108321514B (en) | Integrated and miniaturized coaxial feed circularly polarized rectifying antenna | |
| Nasimuddin et al. | Resonance frequency of an equilateral triangular microstrip antenna | |
| CN105071555A (en) | Microwave energy receiving plate | |
| KR101367259B1 (en) | Integrated Repeater with meta-structure antenna | |
| CN106785484A (en) | A kind of ultra wide band array antenna design method | |
| CN206789705U (en) | One kind miniaturization low section ultra-wide band connection frequency selection surface | |
| CN206022629U (en) | Mobile terminal | |
| Kapoor et al. | Efficient Microstrip Fed Rectangular Patch Antenna with DGS for WLAN & WiMAX Applications | |
| CN205900771U (en) | Antenna array , communication device and terminal equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181218 Termination date: 20200512 |