CN105789876B - A kind of compact ultra-wideband antenna based on parasitic band - Google Patents
A kind of compact ultra-wideband antenna based on parasitic band Download PDFInfo
- Publication number
- CN105789876B CN105789876B CN201610242707.2A CN201610242707A CN105789876B CN 105789876 B CN105789876 B CN 105789876B CN 201610242707 A CN201610242707 A CN 201610242707A CN 105789876 B CN105789876 B CN 105789876B
- Authority
- CN
- China
- Prior art keywords
- radiation patch
- wideband antenna
- width
- band
- parasitic
- 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.)
- Expired - Fee Related
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
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/08—Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines
- H01Q13/085—Slot-line radiating ends
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/10—Resonant antennas
Abstract
The invention discloses a kind of compact ultra-wideband antennas based on parasitic band, belong to ultra-wideband antenna technical field.The ultra-wideband antenna includes medium substrate, radiation patch, microstrip feed line, earth plate and parasitic strip portion；It is close to cut half oval metal radiation patch in the medium substrate upper surface；There are five spacing and slots of same size for etching on the left of the radiation patch, while this five slots are identical at a distance from radiation patch right margin；The microstrip feed line is tightly attached to medium substrate upper surface, is connect with radiation patch；The parasitism band is located on the left of radiation patch, is two sizes different meander configuration band and straight line profile bar band；It is provided with a rectangular channel on the right side of the earth plate.Compact ultra-wideband antenna based on parasitic band is simple in structure, size is very small for this, with ultra-wide-band emission characteristic that is good and stablizing.
Description
Technical field
The invention belongs to ultra-wideband antenna technical fields, design a kind of compact ultra-wideband antenna based on parasitic band.
Background technology
Ultra wide band (UWB) antenna has high transfer rate, low profile, simple in structure, easily fabricated and easy penetrated with monolithic
The advantages that frequency circuit integrates.Especially in recent years, with the fast development of radio-frequency front-end, many microwave equipments are considered to be integrated into
On mobile platform, the fast development of compact ultra-wideband antenna is promoted.
Currently, extension compact planar ultra-wideband antenna bandwidth main method have it is following several：First, change earth plate
Size and shape, such as reduce ground-plane size, and earth plate edge is using stepped, arc etc.；Second, addition L-type is posted
Carded sliver band；Third changes the form of radiation patch, such as using round, ellipse, irregular polygon etc.；4th, it is pasted in radiation
On piece opens complicated slot structure；5th, using the feeder line of more piece gradual change；6th, using fractal technology etc..These methods are made a general survey of,
If going for sufficiently large bandwidth, slot structure or radiation patch structure can be more complicated, and are difficult to meet small
Obviously increasing for bandwidth is realized on the basis of type.Therefore, seek novel design concept, exploitation design structure is compact, designs
Simply, ultra-wideband antenna easy to process is the direction that current vast Antenna Operation person is continually striving to.
Invention content
In view of this, the purpose of the present invention is to provide a kind of compact ultra-wideband antenna based on parasitic band, the day
Cable architecture is simple, size is very small, has good ultra-wide-band emission characteristic.
In order to achieve the above objectives, the present invention provides the following technical solutions：
A kind of compact ultra-wideband antenna based on parasitic band, including radiation patch, medium substrate, earth plate, micro-strip
Feeder line and parasitic strip portion；It is close to cut half oval metal radiation patch in the medium substrate upper surface；The radiation patch
Wide equidistant slot there are five being opened on the left of piece；The microstrip feed line is tightly attached to medium substrate upper surface, is connect with radiation patch；
The parasitism band is located at the left side of radiation patch, is two sizes different meander configuration band and straight line profile bar band；Institute
It states earth plate and is close to medium substrate lower surface and right side and be provided with a rectangular channel.
Further, the oval metal radiation patch partly of cutting is located at medium substrate upper surface, and long axial length R1 is
5.05-5.15mm, the long R2 of short axle are 3.7-3.8mm, and thickness is 0.016-0.018mm.
Further, spacing and slot of same size there are five being opened on the left of the radiation patch, while this five slots and radiation
The distance of patch right margin is identical, and its spacing W5 is 1.1-1.3mm, and width g is 0.29-0.31mm, with radiation patch the right
The distance W4 on boundary is 2.1-2.3mm.
Further, the microstrip feed line length L8 is 2.4-2.6mm, and width W6 is 1.5-1.7mm.
Further, leftmost side meander configuration parasitism belt length L1+L2+L3 is 29.1-29.3mm, and width W1 is 0.29-
0.31mm；Another meander configuration belt length L4+L5+L6 is 27.1-27.3mm, and width W2 is 0.19-0.21mm；Linear type band
Long L7 is 9-9.2mm, and width W3 is 0.49-0.51mm.
Further, earth plate is located at medium substrate lower surface, and length is identical as medium substrate as width, size difference
For L=19mm, W=10mm.
Further, it slots on earth plate on the right side of earth plate, length L9 is 9-9.2mm, and width W7 is 4.7-
4.9mm, slot are 3.9-4.1mm with floor lower edge distance L10.
Further, medium substrate material is FR4, and dielectric constant about 4.4, loss angle tangent about 0.02, length L is
19mm, width W are 10mm.
The beneficial effects of the present invention are：1) by adding meander configuration parasitism band and the grooving in radiation patch so that
The minimum frequency point of its work has reached 3.1GHz or less；2) by adding parasitic band and cutting half to radiation patch, make antenna
Electric size reduce 55.3%, and antenna is made to improve about 3.28dB in the achievable gain of high frequency, to make antenna exist
The variation of the gain of entire UWB frequency ranges is less than 2.42dB；3) by adding linear band so that this antenna is at 9.075GHz
A resonance point is generated, to optimize the impedance matching of frequency range around the frequency point, and the gain of high frequency is improved；4) it removes
The effective bandwidth for having expanded antenna, improves the gain of high frequency, also has compact-sized, simple, advantages such as easily fabricated, can
For WLAN, in the communication system of WiMAX frequency ranges.
Description of the drawings
In order to keep the purpose of the present invention, technical solution and advantageous effect clearer, the present invention provides following attached drawing and carries out
Explanation：
Fig. 1 is the overall structure 3-D view of the compact ultra-wideband antenna based on parasitic band of the present invention；
Fig. 2 is the vertical view of the compact ultra-wideband antenna based on parasitic band of the present invention；
Fig. 3 is the front view of the compact ultra-wideband antenna based on parasitic band of the present invention；
Fig. 4 is the S parameter curve graph with frequency change of the present invention；
Fig. 5 is the present invention respectively in the antenna pattern in the faces E of 3.5GHz, 6.5GHz, 9.5GHz frequency point；
Fig. 6 is the present invention respectively in the antenna pattern in the faces H of 3.5GHz, 6.5GHz, 9.5GHz frequency point；
Specific implementation mode
Below in conjunction with attached drawing, present invention is further described in detail.
Fig. 1 is the overall structure 3-D view of the compact ultra-wideband antenna based on parasitic band of the present invention, as schemed institute
Show：
Compact ultra-wideband antenna of the present invention based on L-type parasitism band includes medium substrate, earth plate, metal
Radiation patch, microstrip feed line, coaxial cable, metallic parasitic ribbon structure.
Wherein, metal ground plate is close in the lower surface of medium substrate, the length and width of earth plate respectively with medium substrate
Length and width it is identical, being dug on the right side of earth plate has a rectangular channel, and the rectangular channel and feeder line have good coupling,
So that antenna has good stationary wave characteristic in UWB frequency ranges.
Half oval radiation patch is close to cut in the upper surface of medium substrate, dig on the left of the radiation patch there are five spacing and
Slot of same size, during experiment simulation, it has been found that slot is deeper, and entire antenna can more show good in low-frequency range
Good stationary wave characteristic, therefore we are ensureing intermediate frequency and the matched depth for increasing slot as possible of high-frequency resistance.
Microstrip feed line is close in medium substrate upper surface, and length L8 is 2.4-2.6mm, and width W6 is 1.5-1.7mm.
It is two meander configuration parasitism bands and straight line type parasitism band on the left of radiation patch, has corresponded to this antenna respectively
In the resonant operational pattern of three different frequent points, resonance derives from the coupling of parasitic band and microstrip feed line.Not only drop
The low lowest resonance frequency point of antenna, while also improving gain of the antenna in high frequency.
Medium substrate is thin cuboid-type substrate, and length L is 19mm, and width W is 10mm, and thickness H2 is 1.6mm, material
FR4 epoxy resin boards, relative dielectric constant 4.4, relative permeability 1.0, loss angle tangent 0.02, ground connection are selected
Plate, microstrip feed line, radiation patch, parasitic ribbon structure, which is that thickness is identical, covers Copper thin film.
The concrete scheme of the present invention is illustrated below by specific embodiment.
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4.Wherein, 1- linear types parasitism band, the meander configuration parasitism band among 2-, 3- is most
Left side meander configuration parasitism band, 4- medium substrates, 5- earth plates, 6- radiation patch, 7- microstrip feed lines.Under the medium substrate 1
Surface is close to be provided with the earth plate 5 of rectangular channel, and upper surface is provided with radiation patch 6, and microstrip line 7 is connect with radiation patch 6,
6 left side of radiation patch is three different parasitic ribbon structures.Medium substrate 1 is thin cuboid, a length of L, width W, thickness
For H2, using FR4 epoxy resin boards as making material, relative dielectric constant 4.4, relative permeability 1.0, loss angle
Just it is cut to 0.02.
After completing above-mentioned initial designs, simulation analysis is carried out using high-frequency electromagnetic simulation software HFSS13.0, is passed through
It is as shown in the table that parameters size is obtained after simulation optimization
1 each parameter optimum size table of the present invention of table
According to above-mentioned parameter, using HFSS to the S parameter of the designed compact ultra-wideband antenna based on parasitic band,
The characterisitic parameters such as direction radiation gain carry out simulation analysis, and analysis result is as follows：
Fig. 4 is the voltage standing wave ratio VSWR simulation curve figures of the present invention, as shown, in VSWR<Under conditions of 2, this day
The impedance bandwidth range of line is 3.031-10.735GHz, shares eight resonant frequency centers, resonant frequency value is respectively
3.1475GHz、3.2925GHz、3.55GHz、4.8GHz、7.5625GHz、8.7GHz、9.075GHz、9.9GHz.Wherein, it is worth
It is to be noted that the resonance of 3.1475GHz and 3.2925GHz is respectively produced by the leftmost side and intermediate two meander configuration parasitism bands
The resonance of (since two frequency point intervals are too small, not marked in figure), 9.075GHz is then generated by linear parasitism band.
Fig. 5 be the present invention in tri- Frequency points of 3.5GHz, 6.5GHz, 9.5GHz in the antenna pattern in the faces E, can from figure
To find out, on the faces E, antenna radiation pattern is similar with monopole antenna directional diagram.Fig. 6 be the present invention 3.5GHz, 6.5GHz,
Tri- Frequency points of 9.5GHz are in the antenna pattern in the faces H, it can be seen from the figure that in entire frequency range, antenna has on the faces H
Good omni-directional
In conclusion the antenna structure is compact, frequency coverage covers UWB frequencies by 3.031GH to 10.713GHz
Section (3.1-10.6GHz), with good voltage standing wave(VSW) characteristic and antenna pattern that is preferable and stablizing.
Finally illustrate, preferred embodiment above is merely illustrative of the technical solution of the present invention and unrestricted, although logical
It crosses above preferred embodiment the present invention is described in detail, however, those skilled in the art should understand that, can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (8)
1. a kind of compact ultra-wideband antenna based on parasitic band, it is characterised in that：Including medium substrate, cut ellipse partly
Metal radiation patch, microstrip feed line, earth plate and parasitic strip portion；It is close to cut half ellipse in the medium substrate upper surface
Metal radiation patch；Spacing and slot of same size there are five being opened on the left of the oval metal radiation patch cut partly, simultaneously
This five slots are identical at a distance from the oval metal radiation patch right margin for cutting half；The microstrip feed line is tightly attached to medium substrate
Upper surface is connect with the oval metal radiation patch for cutting half；The parasitism band is located at the oval metal radiation patch cut partly
It is two sizes different meander configuration band and straight line profile bar band on the left of piece；It is close to connect in the lower surface of the medium substrate
The length and width on floor, earth plate is identical as the length and width of medium substrate respectively, and being dug on the right side of earth plate has a square
Shape slot, the rectangular channel have good coupling with microstrip feed line.
2. a kind of compact ultra-wideband antenna based on parasitic band according to claim 1, it is characterised in that：It is described to cut
Half oval metal radiation patch is located at the top of medium substrate upper surface, and long axial length R1 is 5.05-5.15mm, and short axle is long
R2 is 3.7-3.8mm, and thickness is 0.016-0.018mm.
3. a kind of compact ultra-wideband antenna based on parasitic band according to claim 1, it is characterised in that：It is described to cut
Etching is there are five spacing and slot of same size on the left of half oval metal radiation patch, while this five slots and cutting partly ellipse
The distance of round metal radiation patch right margin is identical, and its spacing W5 is 1.1-1.3mm, and width g is 0.29-0.31mm, with
The distance W4 for cutting half oval metal radiation patch right margin is 2.1-2.3mm.
4. a kind of compact ultra-wideband antenna based on parasitic band according to claim 1, it is characterised in that：It is described micro-
Ribbon feeder length L8 is 2.4-2.6mm, and width W6 is 1.5-1.7mm.
5. a kind of compact ultra-wideband antenna based on parasitic band according to claim 1, it is characterised in that：The leftmost side
Meander configuration parasitism belt length L1+L2+L3 is 29.1-29.3mm, and width W1 is 0.29-0.31mm；Another meander configuration belt length
L4+L5+L6 is 27.1-27.3mm, and width W2 is 0.19-0.21mm；Linear type belt length L7 is 9-9.2mm, and width W3 is
0.49—0.51mm。
6. a kind of compact ultra-wideband antenna based on parasitic band according to claim 1, it is characterised in that：Earth plate
The size of length and width be respectively L=19mm, W=10mm.
7. a kind of compact ultra-wideband antenna based on parasitic band according to claim 1, it is characterised in that：Rectangular channel
Length L9 be 9-9.2mm, width W7 be 4.7-4.9mm, with earth plate lower edge distance L10 be 3.9-
4.1mm。
8. a kind of compact ultra-wideband antenna based on parasitic band according to claim 1, it is characterised in that：Medium base
Plate material is FR4, and dielectric constant 4.4, loss angle tangent 0.016, substrate length L is 19mm, and width W is 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610242707.2A CN105789876B (en) | 2016-04-19 | 2016-04-19 | A kind of compact ultra-wideband antenna based on parasitic band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610242707.2A CN105789876B (en) | 2016-04-19 | 2016-04-19 | A kind of compact ultra-wideband antenna based on parasitic band |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105789876A CN105789876A (en) | 2016-07-20 |
| CN105789876B true CN105789876B (en) | 2018-08-14 |
Family
ID=56397870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610242707.2A Expired - Fee Related CN105789876B (en) | 2016-04-19 | 2016-04-19 | A kind of compact ultra-wideband antenna based on parasitic band |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105789876B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109411900A (en) * | 2018-12-14 | 2019-03-01 | 湖南华诺星空电子技术有限公司 | A kind of broad-band antenna for through-wall radar imaging |
| CN110571518B (en) * | 2019-09-18 | 2023-05-02 | 湖南智领通信科技有限公司 | Unmanned aerial vehicle airborne antenna based on thermoplastic polyimide board |
| CN111193106B (en) * | 2019-12-18 | 2022-09-13 | 南京理工大学 | Microstrip monopole antenna |
| CN111969307B (en) * | 2020-06-28 | 2023-08-15 | 南京林业大学 | Symmetrical multi-slot terahertz 6G communication application frequency band antenna |
| CN115000691A (en) * | 2022-05-11 | 2022-09-02 | 重庆邮电大学 | Compact broadband filtering antenna |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201188456Y (en) * | 2008-03-21 | 2009-01-28 | 东南大学 | Miniaturisation ultra-wideband antenna with anti-interference capability |
| CN204103041U (en) * | 2014-10-13 | 2015-01-14 | 天津职业技术师范大学 | A kind of small-sized three frequency range gap printed antennas |
-
2016
- 2016-04-19 CN CN201610242707.2A patent/CN105789876B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN105789876A (en) | 2016-07-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105789876B (en) | A kind of compact ultra-wideband antenna based on parasitic band | |
| CN104103897B (en) | A kind of compact ultra-wideband antenna based on L-type parasitism band | |
| CN105932409B (en) | One kind is small-sized to melt the type groove of falling E formula ultra wide band millimeter wave micro-strip antenna | |
| CN103259084A (en) | Miniaturization double-band-elimination ultra-wide-band microstrip antenna | |
| CN103094683A (en) | Super-wide band antenna with notching characteristic | |
| CN104934703A (en) | Ultra-broadband antenna capable of shielding various narrowband signal interferences | |
| CN104681972B (en) | There is the groove loading ultra-wideband monopole antenna of stabilising direction figure and good Out-of-band rejection ability simultaneously | |
| CN203503783U (en) | Ultra wideband antenna possessing double trapped wave characteristics | |
| CN209747718U (en) | Microstrip dual-frequency antenna | |
| CN209626421U (en) | One type Sierpinski fractal ultra wide band antenna | |
| CN104916907A (en) | Ultra-wideband monopole antenna with three band rejection characteristics | |
| CN209461638U (en) | A kind of broadband double frequency 5G antenna of feed microstrip line | |
| CN102570021B (en) | Trapped wave ultra-wide band antenna with triangular groove | |
| CN104900996A (en) | Ultra wide band monopole antenna with trap characteristic | |
| CN108429010A (en) | A kind of double end-on-fire antenna of ultra wide band based on the super surface of modulation | |
| CN112018510B (en) | Ultra-wideband antenna | |
| Chitra et al. | Design of E slot rectangular microstrip slot antenna for WiMAX application | |
| CN104934698B (en) | Ultra-wideband antenna with trap reconfigurable function | |
| CN112234358A (en) | Miniaturized double-trapped wave ultra-wideband antenna | |
| CN104882670B (en) | Symmetrical quadripole regulates and controls the multiband aerial of slot-coupled resonator | |
| CN104681925A (en) | Ultra wide band antenna with cross-shaped groove structure and dual-notch characteristics | |
| CN204067574U (en) | A kind of Compact type broadband octangle slot antenna | |
| CN213212379U (en) | High-isolation three-notch ultra-wideband MIMO antenna | |
| CN205992588U (en) | A kind of plane trident shape ultra-wideband antenna with trap characteristic | |
| CN210379419U (en) | Ultra-wideband antenna with double-trapped wave characteristic |
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 |
Granted publication date: 20180814 Termination date: 20190419 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |