CN108615972B - The band multistage hexagonal closs packing ultra-wideband microstrip antenna that concatenation ring controls with one heart - Google Patents
The band multistage hexagonal closs packing ultra-wideband microstrip antenna that concatenation ring controls with one heart Download PDFInfo
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- CN108615972B CN108615972B CN201810312700.2A CN201810312700A CN108615972B CN 108615972 B CN108615972 B CN 108615972B CN 201810312700 A CN201810312700 A CN 201810312700A CN 108615972 B CN108615972 B CN 108615972B
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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
- 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
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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 band multistage hexagonal closs packing ultra-wideband microstrip antenna that concatenation ring controls with one heart, is equipped with substrate, and substrate covers copper face upper surface equipped with radiation patch, impedance matching input transmission line, left side rectangular metal earth plate and right rectangular metal ground plate；Left and right sides rectangular metal earth plate is symmetrically distributed in the two sides of impedance matching input transmission line；The other end of the impedance matching transmission line of lower section feed-in is connected with radiation patch the first rank basic unit, and the left and right sides of impedance matching transmission line is equipped with rectangular metal earth plate；Radiation patch structure is stacked stepwise from bottom to top by the closs packing regular hexagon ring basic unit of the embedded ring control of concatenation with one heart and is extended to form, with one heart concatenation ring control regular hexagon ring basic unit by outer edge be positive hexagonal outer ring embed a concentric loop form, interior concentric loop is connected to outer-hexagonal ring by two sections inductance bridge minor matters；The outer profile plane closs packing of regular hexagon ring forms the multistage radiating element with the control of polynary electromagnetism interior annular of connection.
Description
Technical field
The present invention relates to ultra-wideband microstrip antennas, super more particularly, to the band multistage hexagonal closs packing that concatenation ring controls with one heart
Broadband microstrip antenna.
Background technique
Ultra-wideband antenna history is of long standing and well established, and 1898, British scientist Lodge just proposed wideband biconical antenna, with
Ultra-wideband antenna designing technique continues to develop afterwards, improves biconical antenna from nineteen thirty-nine Cater and devises conical monopole antennas
Coaxial horn antenna is introduced to Brillouin in 1948, then flat helical antenna, logarithm period to proposition the 1950s
Antenna etc..Nowadays ultra-wideband antenna research, which is concentrated mainly on, has many advantages, such as miniaturization, low section, easy processing, easily conformal
On planographic microstrip antenna[1].Relatively very late, scholars' early period research is directed generally to the research history of mimo antenna
On MIMO communication transmission signal encryption algorithm and multichannel propagation model are established, until 2006, Manteghi et al.[2]For the first time
It is proposed the mimo antenna of Unit two and Unit four.The correlative study of UWB-MIMO antenna be concentrated mainly on miniaturization, multiport, can
The directions such as trap, high-isolation.
2012, Shuai Zhang et al.[3]The small-sized binary UWB-MIMO antenna proposed, not merely with different radiation modes
Formula and polarity diversity promote the isolation of two antenna elements, are also formed by the ground plane of monopole radiation patch and another antenna
Decoupling slot further decrease coupling, isolation is more than -26dB.2014, Sharma M et al.[4]It devises a coplanar
The UWB-MIMO antenna of waveguide feed, defect ground structure (DGS) are introduced into antenna and can be significantly reduced between mimo antenna unit
Related coefficient promotes isolation.Verma A K in 2016 et al.[5]It is proposed a single side wrench-shaped UWB-MIMO antenna[6], it is
Enhancing isolation, rectangular channel and Y-shaped structure are introduced in the center on ground, but only cover part UWB frequency range: 4.2~
9.0GHz, the antenna from 4.20~5.20GHz isolation be lower than -16dB, and 5.20GHz with the isolation of super band can better than -
21dB.The same year, Zhang S et al.[7]Pass through the phase mutual coupling in UWB-MIMO antenna is introduced between cable architecture reduction unit
It closes[1], working frequency range is only 3.1~5.0GHz, but its isolation is better than -22dB.
Based on the investigation about left-handed material structure and the present Research of UWB-MIMO antenna both at home and abroad above, can see
Design of the left-handed material in UWB-MIMO antenna is also considerably less out, most of to carry out stopband structure using SRR or CSRR structure
Design, there are certain difficulty for the promotion of mimo antenna isolation.So probing into left-handed material structure and the knot with particular characteristic
Suiting the miniaturization of left-handed material unit, trap, high-isolation UWB-MIMO antenna has critically important scientific research value and practice meaning
Justice.
Bibliography:
[1] Ruan Chengli ultra-wideband antenna theory and publishing house, technology [M] Harbin Institute of Technology, 2006.
[2]Manteghi M,Rahmat-Samii Y.Novel compact tri-band two-element and
four-element MIMO antenna designs[C]//Antennas and Propagation Society
International Symposium 2006,IEEE.IEEE,2006:4443-4446.
[3]Zhang S,Lau B K,Sunesson A,et al.Closely-packed UWB MIMO/diversity
antenna with different patterns and polarizations for USB dongle applications
[J].IEEE Transactions on Antennas and Propagation,2012,60(9):4372-4380.
[4]Sharma M,Sharma S,Goodwill K,et al.A CPW fed antenna design for
UWB-MIMO communication system for high isolation[C]//Computational
Intelligence on Power,Energy and Controls with their impact on Humanity
(CIPECH),2014 Innovative Applications of.IEEE,2014:322-325.
[5]Verma A K,Nakkeeran R,Vardhan R K.Design of 2×2 single sided
wrench shaped UWB MIMO antenna with high isolation[C]//Circuit,Power and
Computing Technologies(ICCPCT),2016 International Conference on.IEEE,2016:1-
3.
[6]Saravani S,Chakrabarty C K,Md Din N.Compact Bandwidth-Enhanced
Center-Fed CPW Zeroth-Order Resonant Antenna Loaded by Parasitic Element[J]
.Progress In Electromagnetics Research Letters,2017,66:1-8.
[7]Zhang S,Pedersen G F.Mutual coupling reduction for UWB MIMO
antennas with a wideband neutralization line[J].IEEE Antennas and Wireless
Propagation Letters,2016,15:166-169.
Summary of the invention
The purpose of the present invention is to provide the band of the miniaturization multistage hexagonal closs packing ultra wide band that concatenation ring controls with one heart is micro-
Band antenna.
The present invention be equipped with substrate, the substrate cover copper face upper surface equipped with radiation patch, impedance matching input transmission line,
Left side rectangular metal earth plate and right rectangular metal ground plate；Left side rectangular metal earth plate and right rectangular metal ground plate
It is symmetrically distributed in the two sides of impedance matching input transmission line；The other end and radiation patch of the impedance matching transmission line of lower section feed-in
First rank basic unit is connected, and the arranged on left and right sides of the impedance matching transmission line is equipped with rectangular metal earth plate；Radiation patch knot
Structure stacks extension shape by a series of closs packing regular hexagon ring basic unit of embedded ring controls of concatenation with one heart stepwise from bottom to top
At the regular hexagon ring basic unit of the concentric concatenation ring control is positive embedded one of hexagonal outer ring together by outer edge
Heart annulus composition, interior concentric loop are connected to outer-hexagonal ring by two sections inductance bridge minor matters；Radiative unit structure stacks by 1,
2,3 ... 6 extend stepwise, and it is more that the outer profile plane closs packing of regular hexagon ring forms controlling with polynary electromagnetism interior annular for connection
Rank radiating element, thus control tunes the frequency characteristic and bandwidth of operation of ultra-wideband antenna；The closely packed mode of hexagonal by lower and
On stack, by upper rank more than lower rank basic unit recurrence composition.
Single side copper-clad base plate can be used in the substrate.
The order stacked can be the rank of n=1~6.
The dielectric constant of the substrate can be 2.2~8.0, and high performance dielectric material substrate can be used in the substrate, described
The shape of substrate can be rectangle, long L=20~24mm, wide W=12~17mm, thickness h=1.2~2.0mm.
The antenna uses coplanar wave guide feedback, the signal band of impedance matching transmission line floor gap width together
G=0.18~0.2mm, signal bandwidth degree Wm=1.3~1.6mm, signal strip length Lm=7~9mm.
The metal ground plate can be rectangle, height Lg=6~9mm of metal ground plate, width Wg=5~7mm.
The regular hexagon outer ring side length R of the closs packing regular hexagon ring basic unit of the embedded ring control of concatenation with one heartp
=5~8mm, regular hexagon inner ring side length Rp1=4~7mm；Embedded concentric loop outer ring radius R0=2~4mm embeds concentric circles
Ring inner ring radius R01=1~3mm, the connected brachyplast byte wide g of above-mentioned inner and outer ringn1=0.7~1.2mm.
The antenna difference stacks the ratio for meeting optimization between the basic unit side length of order, is when antenna stacks order
When n, the side length R of all regular hexagons of antenna basic cell structurep=k1 × pn-1, wherein Optimal Ratio p=0.8~1 can
For adjusting bandwidth；Side length radix k1=4~7mm, for controlling the gain of ultra-wideband microstrip antenna；Similarly, when antenna stacks
When order is n, the outer ring radius R of all embedded concentric loop control units of antenna basic cell structure0=k2 × pn-1, together
Heart annulus inner ring radius R01=k3 × pn-1, Optimal Ratio p=0.8~1, radius radix k2=2~4mm, k3=1~3mm.
The present invention meets low-frequency range matching by loading concatenation ring control with one heart in inside to expand current path.Together
When band intercouple and be further controlled between the regular hexagon of concatenation ring control with one heart, keep antenna current distribution more steady
It is fixed, improve wide band impedance matching property.Regular hexagon structure can stack recurrence growth upwards, and interior hexagon presses certain recurrence
Ratio optimization, the side size range R of n-th orderp1=k × pn-1, recurrence ratio p=0.8~1.Interior hexagon side length reduction can increase spoke
The effective radiating area for penetrating patch, ensures biggish radiation gain, and the control of recurrence ratio can be with the regular energy to every grade
Radiation carries out dual, the balanced flat broadband microstrip antenna characteristic of acquisition.
Detailed description of the invention
Fig. 1 is the overall structure composition schematic diagram of single order embodiment of the present invention.
Fig. 2 is single order embodiment of the present invention and regular hexagon broadband microstrip antenna return loss schematic diagram.It is horizontal in Fig. 2
Coordinate is frequency/GHz, and ordinate is the value of return loss；Solid-line curve is return loss of the invention, and imaginary curve is positive hexagonal
The return loss of shape antenna.
Fig. 3 is the second order hexagonal closs packing antenna structure view of lamination recurrence embodiment of the present invention.
Fig. 4 is three rank hexagonal closs packing antenna structure views of lamination recurrence embodiment of the present invention.
Fig. 5 is three kinds of line return loss schematic diagrames of the embodiment of the present invention.In Fig. 5, abscissa is frequency/GHz, ordinate
For the value of return loss.
Fig. 6 is the E directional diagram of second order of embodiment of the present invention hexagonal closs packing antenna.In Fig. 6, coordinate is polar coordinates.
Fig. 7 is the H directional diagram of second order of embodiment of the present invention hexagonal closs packing antenna.In Fig. 7, coordinate is polar coordinates.
Specific embodiment
Below with reference to embodiment and attached drawing, the invention will be further described.
The embodiment of the present invention is equipped with single side copper-clad base plate, and it is defeated equipped with radiation patch, impedance matching that substrate covers copper face upper surface
Enter transmission line, left side rectangular metal earth plate, right rectangular metal ground plate；Arranged on left and right sides rectangular metal earth plate is symmetrically divided
Cloth is in the two sides of impedance matching input transmission line；The other end of the impedance matching transmission line of lower section feed-in and the first rank of radiation patch
Basic unit is connected, and the impedance matching input transmission line arranged on left and right sides is equipped with rectangular metal earth plate；Radiation patch structure by
A series of closs packing regular hexagon ring basic unit of embedded ring controls of concatenation with one heart stacks stepwise from bottom to top to be extended to form, and is built
Folded order is the rank of n=1~6, and the regular hexagon ring basic unit of the concentric concatenation ring control is regular hexagon by outer edge
The embedded concentric loop composition of outer ring, interior concentric loop is connected to outer-hexagonal ring by two sections inductance bridge minor matters.Radiation
Cellular construction, which stacks, to be extended stepwise by 1,2,3 ... 6, the outer profile plane closs packing of regular hexagon ring formed connection with polynary
The multistage radiating element of electromagnetism interior annular control, thus control tunes the frequency characteristic and bandwidth of operation of ultra-wideband antenna.Hexagonal
Closely packed mode from bottom to top stacks, and by upper rank, a basic unit recurrence is formed more than lower rank.
The dielectric constant of the high performance dielectric material substrate is 2.2~8.0, the shape of the high performance dielectric material substrate
Shape is rectangle, long L=20~24mm, wide W=12~17mm, thickness h=1.2~2.0mm.The antenna uses co-planar waveguide
Feed, matched transmission line signal band floor gap width g=0.18~0.2mm together, signal bandwidth degree Wm=1.3~
1.6mm, signal strip length Lm=7~9mm.The metal floor is rectangle, metal floor height Lg=6~9mm, width Wg
=5~7mm.The regular hexagon ring of the embedded ring control of concatenation with one heart, the regular hexagon outer ring side length Rp=5 of basic unit
~8mm, regular hexagon inner ring side length Rp1=4~7mm；Embedded concentric loop outer ring radius R0=2~4mm embeds concentric loop
Inner ring radius R01=1~3mm.The connected brachyplast byte wide g of above-mentioned inner and outer ringn1=0.7~1.2mm.The antenna difference stacks
Meet the ratio of optimization between the basic unit side length of order.When it is n that antenna, which stacks order, the institute of antenna basic cell structure
There is the side length R of regular hexagonp1=k1 × pn-1, wherein Optimal Ratio p=0.8~1, can be used for adjusting bandwidth；Side length radix k1=
4~7mm, for controlling the gain of ultra-wideband microstrip antenna.Similarly, when it is n that antenna, which stacks order, antenna basic cell structure
All embedded concentric loop control units outer ring radius R0=k2 × pn-1, concentric loop inner ring radius R01=k3 × pn-1,
Optimal Ratio p=0.8~1, radius radix k2=2~4mm, k3=1~3mm.
The relative dielectric constant that the present invention implements substrate in embodiment is 4.4, loss tangent value 0.02, dielectric material base
The shape of plate is cuboid, long L=22mm, wide W=15mm, thickness h=1.6mm.The present invention uses coplanar wave guide feedback, signal
Band floor gap width g together.Signal bandwidth degree Wm=1.5mm, signal strip length Lm=8mm, positioned at signal with two sides
Metal floor is rectangle, metal floor height Lg=7mm, width Wg=6.5mm.
Details are as follows for the preferred embodiment of the present invention (in conjunction with attached drawing):
Embodiment 1: referring to Fig. 1, the present embodiment takes n=1, i.e. single order band concatenates the multistage hexagonal closs packing that ring controls with one heart
Ultra-wideband microstrip antenna, radiation patch structure are that regular hexagon ring is nested with a concatenation ring with one heart, regular hexagon side length Rp=
7mm, inner ring regular hexagon side length Rp1=5mm embeds annulus outer ring radius R0=3mm embeds annulus inner ring radius R01=2mm phase
Brachyplast even saves gn1=1mm.Referring to fig. 2, Fig. 2 is single order embodiment of the present invention and regular hexagon broadband microstrip antenna return loss
Schematic diagram.The band hexagon antenna low frequency that concatenation ring controls with one heart is extended to 3.47GHz as shown in Figure 2, and regular hexagon exists
3.8GHz is advantageously implemented miniaturization so concatenation ring control structure increases current path length really with one heart, reduces antenna ruler
It is very little.
Embodiment 2: referring to Fig. 3, the present embodiment takes n=2, regular hexagon outer ring side length Rp=4mm, regular hexagon inner ring side
Long Rp1=3mm embeds annulus outer ring radius R0=2mm, embeds annulus inner ring radius R01=1mm, connected brachyplast save gn1=
1mm.Referring to fig. 4, the present embodiment takes n=3, regular hexagon side length Rp=2.8mm, inner ring regular hexagon side length Rp1=1.8mm, it is interior
Embedding annulus outer ring radius R0=1.4mm embeds annulus inner ring radius R01=0.8mm, connected brachyplast save gn1=0.6mm.By Fig. 5
Know the expansion of structure, current path has obtained greatly abundant and extended, so spectrum width is expanded.Single order antenna work
Making frequency range is 3.47~9.77GHz, and intermediate bands matching is relatively preferable；Second order Antenna Operation frequency range is 2.97~11.76GHz,
Intermediate bands matching is more general, and both ends are slightly good；The intermediate bands matching in 3.33~12.84GHz of frequency range of three rank lines is poor,
Major part is near -10dB.
It is the face the radiation E figure of frequency point 4.00GHz, 5.50GHz, 6.50GHz, 9.50GHz referring to Fig. 6~7, Fig. 6, Fig. 7 is
The face the radiation H figure of frequency point 4.00GHz, 5.50GHz, 6.50GHz, 9.50GHz.The antenna known to Fig. 6~7 has omnidirectional radiation special
Property, and picture distortion is smaller, direction is more stable.
Table 1 provides influencing characterisitic of the manufacture mismachining tolerance to antenna of second order embodiment of the present invention.
Table 1
Note: data have certain redundancy in table 1, there is certain relevance between each parameter, and what is provided is equalization characteristic, can root
According to need optimum structural parameter complete special designing.
Claims (10)
1. the band multistage hexagonal closs packing ultra-wideband microstrip antenna that concatenation ring controls with one heart, it is characterised in that it is equipped with substrate, it is described
Substrate covers copper face upper surface equipped with radiation patch, impedance matching input transmission line, left side rectangular metal earth plate and right side square
Shape metal ground plate；Left side rectangular metal earth plate and right rectangular metal ground plate are symmetrically distributed in impedance matching input transmission
The two sides of line；The other end of the impedance matching input transmission line of lower section feed-in is connected with radiation patch the first rank basic unit, institute
The arranged on left and right sides for stating impedance matching input transmission line is equipped with rectangular metal earth plate；Radiation patch structure is by a series of embedded same
The closs packing regular hexagon ring basic unit of heart concatenation ring control stacks stepwise from bottom to top to be extended to form, the concentric concatenation ring
The regular hexagon ring basic unit of control by outer edge be positive hexagonal outer ring embed a concentric loop form, it is interior with one heart
Annulus is connected to outer-hexagonal ring by two sections inductance bridge minor matters；Radiative unit structure is stacked to be extended stepwise by 1,2,3 ... 6, just
The outer profile plane closs packing of hexagon ring forms the multistage radiating element with the control of polynary electromagnetism interior annular of connection, and hexagonal is close
The mode of accumulation from bottom to top stacks, and by upper rank, a basic unit recurrence is formed more than lower rank.
2. the band multistage hexagonal closs packing ultra-wideband microstrip antenna that concatenation ring controls with one heart, feature exist as described in claim 1
Single side copper-clad base plate is used in the substrate.
3. the band multistage hexagonal closs packing ultra-wideband microstrip antenna that concatenation ring controls with one heart, feature exist as described in claim 1
In the order stacked be the rank of n=1~6.
4. the band multistage hexagonal closs packing ultra-wideband microstrip antenna that concatenation ring controls with one heart, feature exist as described in claim 1
In the substrate dielectric constant be 2.2~8.0.
5. the band multistage hexagonal closs packing ultra-wideband microstrip antenna that concatenation ring controls with one heart, feature exist as described in claim 1
In the substrate shape be rectangle, long L=20~24mm, wide W=12~17mm, thickness h=1.2~2.0mm.
6. the band multistage hexagonal closs packing ultra-wideband microstrip antenna that concatenation ring controls with one heart, feature exist as described in claim 1
Coplanar wave guide feedback, the signal band of impedance matching input transmission line floor gap width g=together are used in the antenna
0.18~0.2mm, signal bandwidth degree Wm=1.3~1.6mm, signal strip length Lm=7~9mm.
7. the band multistage hexagonal closs packing ultra-wideband microstrip antenna that concatenation ring controls with one heart, feature exist as described in claim 1
In the metal ground plate be rectangle, height Lg=6~9mm of metal ground plate, width Wg=5~7mm.
8. the band multistage hexagonal closs packing ultra-wideband microstrip antenna that concatenation ring controls with one heart, feature exist as described in claim 1
In the regular hexagon outer ring side length R of the closs packing regular hexagon ring basic unit of the embedded ring control of concatenation with one heartp=5~
8mm, regular hexagon inner ring side length Rp1=4~7mm；Embedded concentric loop outer ring radius R0=2~4mm is embedded in concentric loop
Ring radius R01=1~3mm, the connected brachyplast byte wide g of inner and outer ringn1=0.7~1.2mm.
9. the band multistage hexagonal closs packing ultra-wideband microstrip antenna that concatenation ring controls with one heart, feature exist as described in claim 1
The ratio for meeting optimization between the basic unit side length that the antenna difference stacks order, when it is n that antenna, which stacks order, day
All regular hexagon outer ring side length R of line basic cell structurep=k1 × pn-1, wherein Optimal Ratio p=0.8~1, for adjusting
Whole bandwidth；Side length radix k1=5~8mm, for controlling the gain of ultra-wideband microstrip antenna.
10. the band multistage hexagonal closs packing ultra-wideband microstrip antenna that concatenation ring controls with one heart, feature exist as described in claim 1
The ratio for meeting optimization between the basic unit side length that the antenna difference stacks order, when it is n that antenna, which stacks order, day
The outer ring radius R of all embedded concentric loop control units of line basic cell structure0=k2 × pn-1, concentric loop inner ring half
Diameter R01=k3 × pn-1, Optimal Ratio p=0.8~1, radius radix k2=2~4mm, k3=1~3mm.
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| CN109687120B (en) * | 2018-11-23 | 2020-10-30 | 河南师范大学 | Omnidirectional double-ring small microstrip antenna |
| CN109818143A (en) * | 2019-02-28 | 2019-05-28 | 东华大学 | Broad frequency micro-band paster antenna |
| CN110867644B (en) * | 2019-11-11 | 2021-01-19 | 中国电子科技集团公司第十四研究所 | Dual-band multi-polarization common-caliber coaxial waveguide slot antenna |
| CN113113774A (en) * | 2020-12-04 | 2021-07-13 | 西安电子科技大学 | Broadband beam scanning reflective array antenna |
| CN112909555B (en) * | 2020-12-25 | 2022-04-05 | 煤炭科学研究总院有限公司 | Small ultra-wideband single-trapped-wave antenna |
| CN112768924B (en) * | 2020-12-31 | 2022-03-15 | 厦门大学 | Gradual change multistage rectangular close-packed frequency-broadening quasi-self-compensating antenna |
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