CN108232414A - A kind of civilian ultra-wideband antenna of Klopfenstein gradual change line profiles with wave edge - Google Patents
A kind of civilian ultra-wideband antenna of Klopfenstein gradual change line profiles with wave edge Download PDFInfo
- Publication number
- CN108232414A CN108232414A CN201711169204.8A CN201711169204A CN108232414A CN 108232414 A CN108232414 A CN 108232414A CN 201711169204 A CN201711169204 A CN 201711169204A CN 108232414 A CN108232414 A CN 108232414A
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- aerial radiation
- coaxial
- antenna
- circular contour
- wave edge
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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Abstract
The present invention relates to a kind of civilian ultra-wideband antenna of Klopfenstein gradual change line profiles with wave edge, including aerial radiation ontology, floor and SMA coaxial feed connectors for being inserted into aerial radiation ontology, it is characterised in that：The middle and upper part of the aerial radiation ontology is circular contour wave edge, the lower part of aerial radiation ontology is Klopfenstein gradual change line profiles, the end at circular contour wave edge and the joining distal ends of Klopfenstein gradual change line profiles, aerial radiation ontology are processed as a metal entirety；The circular contour wave edge is generally round, several semicircular indentations are equipped at circular contour edge, several semicircular indentations are symmetrically arranged using coaxial inner core and straight line where the center of circle at circular contour wave edge as axis, and the 1/6 of a diameter of circular contour diameter of the semicircular indentations.The each working frequency points consistency of inventive antenna is preferable, and with high frequency trap characteristic, and the frequency range for meeting communication is the civilian ultra wide band demands of 3.1GHz ~ 10.6GHz without by other band interferences.
Description
Technical field
The invention belongs to microwave antenna art fields, and in particular to a kind of Klopfenstein gradual changes with wave edge
The civilian ultra-wideband antenna of line profile, main application direction are the civilian ultra-wideband communications frequency ranges of 3.1GHz~10.6GHz.
Background technology
In recent years, commercial signal communication system more requires transmission voice, word, image and the multimedia messages of high quality, because
This available frequency spectrum resource day is becoming tight, and original radio spectrum becomes very crowded, is badly in need of a kind of new technology as channel radio
Letter opens up a piece of new world, and ultra wide band (UWB, Ultra-Wideband) technology, which has, solves the problems, such as this potentiality.
As a part for radio ultra wide band system, the role that ultra-wideband antenna is taken in systems has its particularity, property
The performance of whole system can largely be restrict.Traditional ultra-wideband antenna, such as log-periodic antenna, Archimedes's spiral shell
Antenna, equiangular spiral antenna etc. are revolved, feeding network design is complicated, and phase center is not fixed, and has when transmitting time domain short pulse signal
More serious distortion.For the ultra-wideband antenna proposed in recent years mainly based on the various evolving forms of biconical antenna, this includes butterfly
Shape antenna, tear antenna, gradual change slot antenna, circular disc monopole antenna etc. and its variant, wherein proposed by W.Stohr
Circular disc monopole antenna also has stable phase center other than having very wide impedance bandwidth.This disk monopole antenna
Although satisfactory radiance can be provided in very wide impedance bandwidth, it there is also following technical problem,
Thus limit its application in certain special occasions.
Although 1) circular disc monopole antenna impedance bandwidth is wider, big rise and fall, Ge Gepin is lost in bandwidth range internal reflection
Point consistency is poor, can influence the stability of entire radio ultra wide band system to a certain extent；
2) circular disc monopole antenna and its front end of the variant such as impedance bandwidths such as printed circle chip antenna nearly all exist
More than 20GHz, and Federal Communications Commission (FCC, Federal Communications Commission) regulation is civilian
The frequency range of ultra-wideband communications is 3.1GHz~10.6GHz, if the working frequency of limitation antenna is only in this range, above-mentioned dwi hastasana
Formula can be interfered due to excessively high high frequency bandwidth.
In view of the above situation, it is necessary to which a kind of Whole frequency band consistency of application and development for civilian ultra wide band is preferable, tool
There is the ultra-wideband antenna of high frequency trap characteristic, provide more special than the design of existing ultra-wideband antenna more preferably electromagnetic property and structure
Property.
Jin Jun et al. (Jin Jun, clock up time utilize pocket super-broadband unipole antenna [J] microwave journals of short-circuit chip architecture,
2008,24(2):It 31-33.) is described in one text of pocket super-broadband unipole antenna using short-circuit chip architecture a kind of using short
Pocket super-broadband (UWB) planar monopole antenna of road chip architecture, although realizing the ultra wide band characteristic of antenna, bandwidth range
Up to 15dB or so, each frequency point consistency is poor, can influence entire ultra wide band system to a certain extent for internal reflection loss big rise and fall
The stability of system.
Invention content
The technical problem to be solved in the invention is：Overcome the deficiencies in the prior art and defect provide a kind of with wave
The civilian ultra-wideband antenna of Klopfenstein gradual change line profiles at edge makes it solve common circular disc monopole antenna and its deformation shape
Formula Whole frequency band reflection loss consistency is poor, impedance bandwidth front end excessively high easily the problems such as being interfered, and antenna structure is reliable,
Have many advantages, such as that Whole frequency band consistency is good, high frequency trap.Inventive antenna employs Klopfenstein gradual changes due to feed end
Cable architecture so that each frequency point consistency of antenna is preferable, so as to entirely improve the stability of radio ultra wide band system；The antenna top
Portion edge uses circular contour wave structure so that antenna has high frequency trap characteristic, meet the frequency range of communication for 3.1GHz~
The civilian ultra wide band demands of 10.6GHz are without by other band interferences；Antenna vertical polarization electromagnetic wave for transmitting and receiving,
Simple in structure, entire antenna radiator and floor are only made of metal brass and aluminium, and processing and fabricating is easy and at low cost；The antenna
Can be directly with 50 Ω coaxial feedings and without adding matching network, matching is easier；The antenna structure is stablized, and is cracked using inner core
The coaxial connector of gap is fixed, stable structure after welding antenna radiator using silica gel；The radiation field of aerial is in Whole frequency band level
It is evenly distributed in the range of 360 degree of face, can realize good omnidirectional's characteristic.
The technical solution adopted by the present invention to solve the technical problems is：It provides a kind of with wave edge
The civilian ultra-wideband antenna of Klopfenstein gradual change line profiles, including aerial radiation ontology, floor and for being inserted into aerial radiation
The SMA coaxial feed connectors of ontology, it is characterised in that：The middle and upper part of the aerial radiation ontology is circular contour rippled edge
Edge, the lower part of aerial radiation ontology are Klopfenstein gradual change line profiles, the end at circular contour wave edge with
The joining distal ends of Klopfenstein gradual change line profiles, aerial radiation ontology are processed as a metal entirety；
The SMA coaxial feeds connector includes coaxial outer conductor, coaxial dielectric, coaxial inner core and coaxial flange；It is described
The through-hole consistent with the coaxial dielectric outer diameter of SMA coaxial feed connectors is provided among floor so that SMA coaxial feed connectors
Coaxial inner core can be inserted into floor and not with floor short circuit；The coaxial inner core upper end for stretching out floor is provided with and aerial radiation ontology thickness
Spend the gap to match；Aerial radiation body lower part is inserted into the gap of coaxial inner core, at the feed of aerial radiation ontology bottom end
It welds and is fixed together；
The circular contour wave edge is generally round, several semicircular indentations are equipped at circular contour edge, if
Dry semicircular indentations are symmetrically arranged using coaxial inner core and straight line where the center of circle at circular contour wave edge as axis, described
The 1/6 of a diameter of circular contour diameter of semicircular indentations.
The present invention and the prior art contrast, and effect is positive and apparent：
1) inventive antenna uses Klopfenstein gradual change line profiles in aerial radiation body lower part, i.e. feed end, makes
It is preferable to obtain each working frequency points consistency of antenna, improves the stability of entire radio ultra wide band system；
2) inventive antenna uses wave structure at disk edge so that antenna has high frequency trap characteristic, meets communication
Frequency range for the civilian ultra wide band demands of 3.1GHz~10.6GHz without by other band interferences；The reflection loss of inventive antenna
It rises and falls in 2dB or so, and existing circular disc monopole antenna reflection loss rises and falls generally in 10dB or so.
3) it is provided with gap among the coaxial connector inner core that inventive antenna uses so that antenna sheet radiator can be inserted
Enter, fixed after the two welding using silica gel, structure is more stablized；
4) radiation field of aerial is evenly distributed in the range of 360 degree of Whole frequency band horizontal plane, can realize that good omnidirectional is special
Property；
5) inventive antenna plate shape can justify can be square, size shape can suitably be adjusted according to practical application request, whole
Antenna structure and application scenario are flexible.
Description of the drawings
Fig. 1 is the positive structure diagram of inventive antenna.
Fig. 2 is the overlooking the structure diagram of inventive antenna.
Fig. 3 is inventive antenna and common circular disc monopole antenna reflection loss comparison diagram.
Fig. 4 is inventive antenna horizontal radiation pattern.
In figure：1. aerial radiation ontology, 11. circular contour wave edges, 12.Klopfenstein transition lines edge, 2.
Floor, 3.SMA coaxial feed connectors, 31. coaxial outer conductors, 32. coaxial dielectrics, 33. coaxial inner cores, 34. coaxial flanges.
Specific embodiment
The present invention is described in further details below in conjunction with the accompanying drawings.
The present invention has the civilian ultra-wideband antenna of Klopfenstein gradual change line profiles (abbreviation antenna, the ginseng at wave edge
See Fig. 1-2) including aerial radiation ontology 1, floor 2 and SMA coaxial feeds connector 3 for being inserted into aerial radiation ontology 1, day
The middle and upper part of beta radiation ontology 1 is circular contour wave edge 11, and the lower part of aerial radiation ontology 1 is Klopfenstein gradual changes
Line profile 12, the end at circular contour wave edge 11 and the joining distal ends of Klopfenstein gradual changes line profile 12, antenna spoke
It penetrates ontology 1 and is processed as a metal entirety, metal described herein refers to brass；
The circular contour wave edge is equipped with several semicircular indentations to be generally round, at circular contour edge,
The symmetrical form arrangement of several semicircular indentations, the 1/6 of a diameter of circular contour diameter of the semicircular indentations,
The SMA coaxial feeds connector 3 is commercial product, and Xi'an Elite Electronic Industrial Co., Ltd. can be selected
SMA-KFD2 connectors, including coaxial outer conductor 31, coaxial dielectric 32, coaxial inner core 33 and coaxial flange 34；In the floor 2
Between be provided with the through-hole consistent with 32 outer diameter of coaxial dielectric of SMA coaxial feeds connector 3 so that SMA coaxial feeds connector 3
Coaxial inner core 33 can be inserted into floor and not with floor short circuit, the floor is circular metal floor, and metal described herein refers to
Aluminium；33 upper end of coaxial inner core for stretching out floor is provided with the gap that thickness is 0.6mm, thickness and the aerial radiation ontology in the gap
Thickness matches；When antenna is installed, 1 lower part of aerial radiation ontology is inserted into the gap of coaxial inner core 33, in aerial radiation ontology 1
It welds, is fixed later with silica gel, to enhance its mechanical strength at the feed of bottom end；Antenna circle floor 2 is provided with 4 φ 3.2mm's
Through-hole, the coaxial outer conductor 31 of SMA coaxial feeds connector 3 and coaxial flange 34 by the standard stainless steel screw of four M3 with
Floor 2 is connected, so that entire antenna becomes an entirety.
Further characteristic of the invention is that the floor is circular metal floor or square metal floor.
The present invention basic ideas be：It is civilian super to provide a kind of Klopfenstein gradual change line profiles with wave edge
Broad-band antenna, antenna in radiator lower part using Klopfenstein gradual change line profiles, the reflection of signal be due to impedance not
Caused by continuity, design continuous gradation Klopfenstein gradual change line profiles preferably realize impedance transformation, obtain smaller
Signal reflex, therefore each working frequency points consistency of antenna is preferable, improves the stability of entire radio ultra wide band system；Circle
The front end of piece unipole antenna impedance bandwidth in more than 30GHz, FCC provide the frequency ranges of civilian ultra-wideband communications for 3.1GHz~
10.6GHz, in antenna radiator middle and upper part, disk contour edge uses wave structure so that and antenna has high frequency trap characteristic,
Civilian ultra wide band demand can be met without by other band interferences.By adjusting aerial radiation ontology middle and upper part circular contour half
Diameter size, edge wave the wave is high small, aerial radiation body lower part Klopfenstein transition lines parameter, feed spacing (aerial radiation
The distance between body lower part Klopfenstein transition lines edge and round floor 0.8mm) equidimension, Antenna Operation can be made
In scheduled 3.1GHz~10.6GHz frequency ranges, Whole frequency band reflection loss consistency is preferable, and forms required horizontal plane omnidirectional
The characteristics such as the directional diagram of radiation.
In the present invention, aerial radiation ontology 1 has been the main component of radiation effects, for space radiation electromagnetism
Wave, when transmitting a signal, SMA coaxial feeds connector 3 input the transmitting signal of external transmitter by the coaxial cable of connection,
The energy of coaxial fitting output evokes the surface current on aerial radiation ontology 1, so as to generate radiation；Due to aerial radiation ontology
1 lower part uses Klopfenstein gradual changes line profile 12, and impedance transformation, each working frequency points consistency of antenna has been better achieved
Preferably, the stability of entire radio ultra wide band system is improved；Since inventive antenna is at 1 middle and upper part edge of aerial radiation ontology
For circular contour wave edge 11 so that antenna has high frequency trap characteristic, and the frequency range for meeting communication is 3.1GHz~10.6GHz
Civilian ultra wide band demand is without by other band interferences；Since inventive antenna is same using the SMA of coaxial inner core slotting in middle gap
Mandrel connector 3 is fixed after welding antenna radiator 1 using silica gel, and structure is more stable；As a result of ultra-wideband antenna monopole
Citation form, radiation field of aerial is evenly distributed in the range of 360 degree of Whole frequency band horizontal plane, can realize that good omnidirectional is special
Property；In addition, 2 shape of inventive antenna floor can justify can side and size can suitably be adjusted according to practical application request, integrated antenna
Structure and application scenario are flexible.
Embodiment 1
The present embodiment has the civilian ultra-wideband antenna of Klopfenstein gradual change line profiles at wave edge by aerial radiation
Ontology, floor and for be inserted into the SMA coaxial feeds connector of aerial radiation ontology form；In the aerial radiation ontology 1
Top is circular contour wave edge 11, and the lower part of aerial radiation ontology 1 is Klopfenstein gradual changes line profile 12, circular wheel
The end at wide wave edge 11 and the joining distal ends of Klopfenstein gradual changes line profile 12, the whole knot of aerial radiation ontology 1
Structure integration is processed, and chosen material is brass, thickness 0.5mm；The present embodiment chooses round floor, to mitigate antenna weights, choosing
It draws materials as aluminium；Antenna selects the limited public affairs of Xi'an Ai Lite electronics industry using SMA types coaxial connector connection feed, connector
The SMA-KFD2 connectors of department stretch out the gap for having opened that thickness is 0.6mm among the coaxial inner core on floor；Under aerial radiation ontology
Edge is inserted into the gap of the coaxial inner core of SMA type coaxial connectors, is welded at the feed of bottom end, is fixed later with silica gel, with
Enhance its mechanical strength；Coaxial outer conductor and coaxial flange are connected with floor；The energy of coaxial fitting output is presented from feed end
Enter, and then evoke antenna radiator surface current, so as to generate radiation.
A diameter of 21mm at circular contour wave edge in the present embodiment sets at circular contour edge and is lacked there are four semicircle
Mouthful, four semicircular indentations are using straight line where the center of circle at coaxial inner core and circular contour wave edge as the symmetrical cloth of axis
It puts, the 1/6 of a diameter of circular contour diameter of semicircular indentations；Angle between the minimum point of two neighboring semicircular indentations is
60 °, Klopfenstein gradual changes line profile accounts for 120 ° of circular contour central angle in the positive bottom of aerial radiation ontology,
The distance between Klopfenstein gradual change line profile minimum points and round floor are 0.8mm.
Fig. 3 is the present embodiment antenna and common circular disc monopole antenna reflection loss comparison diagram.Reflection loss is the one of antenna
A important performance characteristic, it reflects the impedance operator of tested antenna, also determines the impedance bandwidth of antenna.It is shown in Figure 3,
For common circular disc monopole antenna in the range of the ultra wide frequency of 3~30GHz, the reflection loss of antenna is less than -10dB, and reflection loss
The big rise and fall in frequency band, for the present embodiment antenna in the frequency range of 3~12GHz, the reflection loss of antenna is less than -10dB,
It is and relatively stable in frequency band.The present embodiment antenna inhibits common circular disc monopole antenna high frequency characteristics so that the basic work of antenna
Make in the range of ultra-wideband communications frequency range 3.1GHz~10.6GHz civilian as defined in Federal Communications Commission FCC, and at this
Frequency band internal reflection loss is relatively stable, effectively controls high band issuable interference to communication system, and improves entire
The stability of radio ultra wide band system.
Fig. 4 is the present embodiment antenna horizontal radiation pattern.Directional diagram is characterization antenna radiation characteristics and space angle relationship
And the figure of radiation energy size.Shown in Figure 4,3.1GHz, 6.85GHz, 10.6GHz horizontal radiation pattern are shown, antenna
Than more uniform, out-of-roundness is less than 4.5dB to radiation field, can for distribution in the range of 360 degree of Whole frequency band 3.1GHz~10.6GHz horizontal planes
To realize good omnidirectional's characteristic, meet civilian ultra-wideband communications demand.
Unspecified part of the present invention belongs to techniques well known.
Claims (4)
1. a kind of civilian ultra-wideband antenna of Klopfenstein gradual change line profiles with wave edge, including aerial radiation sheet
Body, floor and the SMA coaxial feed connectors for being inserted into aerial radiation ontology, it is characterised in that：The aerial radiation ontology
Middle and upper part for circular contour wave edge, the lower part of aerial radiation ontology is Klopfenstein gradual change line profiles, circular wheel
The end at wide wave edge and the joining distal ends of Klopfenstein gradual change line profiles, aerial radiation ontology are processed as a metal
It is whole；
The SMA coaxial feeds connector includes coaxial outer conductor, coaxial dielectric, coaxial inner core and coaxial flange；The floor
Centre is provided with the through-hole consistent with the coaxial dielectric outer diameter of SMA coaxial feed connectors so that SMA coaxial feed connectors it is same
Axis inner core can be inserted into floor and not with floor short circuit；The coaxial inner core upper end for stretching out floor is provided with and aerial radiation body thickness phase
Matched gap；Aerial radiation body lower part is inserted into the gap of coaxial inner core, is welded at the feed of aerial radiation ontology bottom end
And it is fixed together；
The circular contour wave edge is generally round, several semicircular indentations are equipped at circular contour edge, several
Semicircular indentations are symmetrically arranged using coaxial inner core and straight line where the center of circle at circular contour wave edge as axis, the semicircle
The 1/6 of a diameter of circular contour diameter of v notch v.
2. the Klopfenstein gradual change line profiles civilian ultra-wideband antenna according to claim 1 with wave edge,
It is characterized in that the number of the semicircular indentations is four, the angle between the minimum point of two neighboring semicircular indentations is
60 °, Klopfenstein gradual changes line profile accounts for 120 ° of circular contour central angle in the positive bottom of aerial radiation ontology.
3. the Klopfenstein gradual change line profiles civilian ultra-wideband antenna according to claim 1 with wave edge,
It is characterized in that the floor is circular metal floor or square metal floor, material is aluminium；The material of aerial radiation ontology is
Brass.
4. the Klopfenstein gradual change line profiles civilian ultra-wideband antenna according to claim 1 with wave edge,
It is characterized in that the model SMA-KFD2 connectors of SMA coaxial feed connectors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711169204.8A CN108232414A (en) | 2017-11-22 | 2017-11-22 | A kind of civilian ultra-wideband antenna of Klopfenstein gradual change line profiles with wave edge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711169204.8A CN108232414A (en) | 2017-11-22 | 2017-11-22 | A kind of civilian ultra-wideband antenna of Klopfenstein gradual change line profiles with wave edge |
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| Publication Number | Publication Date |
|---|---|
| CN108232414A true CN108232414A (en) | 2018-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711169204.8A Withdrawn CN108232414A (en) | 2017-11-22 | 2017-11-22 | A kind of civilian ultra-wideband antenna of Klopfenstein gradual change line profiles with wave edge |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109921181A (en) * | 2019-04-10 | 2019-06-21 | 西南交通大学 | A kind of bilayer butterfly antenna |
| CN112736420A (en) * | 2020-10-15 | 2021-04-30 | 天津津航计算技术研究所 | Resistance-loaded Klopfenstein gradient profile ultra-wideband antenna |
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| US5428364A (en) * | 1993-05-20 | 1995-06-27 | Hughes Aircraft Company | Wide band dipole radiating element with a slot line feed having a Klopfenstein impedance taper |
| CN201345417Y (en) * | 2009-01-08 | 2009-11-11 | 中国人民解放军空军工程大学导弹学院 | Small-sized ultra wide band plane antenna |
| CN105305055A (en) * | 2015-11-20 | 2016-02-03 | 吉林医药学院 | Dual-annular planer monopole antenna with ultra-wide band |
| CN206370494U (en) * | 2016-11-30 | 2017-08-01 | 西安交通大学 | A kind of resistance gradual changing structure of combined elements antenna |
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2017
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Patent Citations (4)
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|---|---|---|---|---|
| US5428364A (en) * | 1993-05-20 | 1995-06-27 | Hughes Aircraft Company | Wide band dipole radiating element with a slot line feed having a Klopfenstein impedance taper |
| CN201345417Y (en) * | 2009-01-08 | 2009-11-11 | 中国人民解放军空军工程大学导弹学院 | Small-sized ultra wide band plane antenna |
| CN105305055A (en) * | 2015-11-20 | 2016-02-03 | 吉林医药学院 | Dual-annular planer monopole antenna with ultra-wide band |
| CN206370494U (en) * | 2016-11-30 | 2017-08-01 | 西安交通大学 | A kind of resistance gradual changing structure of combined elements antenna |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109921181A (en) * | 2019-04-10 | 2019-06-21 | 西南交通大学 | A kind of bilayer butterfly antenna |
| CN109921181B (en) * | 2019-04-10 | 2024-05-14 | 西南交通大学 | Double-layer butterfly antenna |
| CN112736420A (en) * | 2020-10-15 | 2021-04-30 | 天津津航计算技术研究所 | Resistance-loaded Klopfenstein gradient profile ultra-wideband antenna |
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Application publication date: 20180629 |