CN108767470A - A kind of discrete embedded medium resonator antenna of ultra wideband omni-directional low section - Google Patents
A kind of discrete embedded medium resonator antenna of ultra wideband omni-directional low section Download PDFInfo
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- CN108767470A CN108767470A CN201810761816.4A CN201810761816A CN108767470A CN 108767470 A CN108767470 A CN 108767470A CN 201810761816 A CN201810761816 A CN 201810761816A CN 108767470 A CN108767470 A CN 108767470A
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- 238000004891 communication Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 10
- 238000005388 cross polarization Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000007639 printing Methods 0.000 description 2
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- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
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- 238000003754 machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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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
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
Abstract
The present invention relates to a kind of discrete embedded medium resonator antennas of ultra wideband omni-directional low section, including medium substrate, the identical equilateral triangle dielectric resonator of two sizes, rectangular monopole and coplanar wave guide feedback system, the medium substrate top opens size and is equal to the groove of dielectric resonator so as to installation by adhering, and the dielectric resonator lower layer is embedded among medium substrate to reduce section height；The rectangular monopole is used as antenna, it is used as driving source to be inserted between two layer medium resonator again, coplanar wave guide feedback system both sides are two symmetrical ground levels with a depression, and centre is the straight microstrip feed lines of 50 Ω, the upper end is connected with rectangular monopole, and terminal connects coaxial fitting.The antenna covers the frequency range of 3.44~10.85GHz, and it is only 1.524mm to have relatively stable gain and higher radiation efficiency, section height in entire working frequency range.
Description
Technical field
The invention belongs to wireless communication technology fields, and in particular to a kind of discrete embedded medium of ultra wideband omni-directional low section
Resonant aerial, more particularly to it is a kind of to be combined using discrete embedded equilateral triangle dielectric resonator and rectangular monopole antenna
To obtain the antenna of ultra wide band characteristic, which can be used as super broad band radio communication terminal antenna.It is set due to the use of embedded
Meter method, which is only 1.524mm, especially suitable for small-sized, low section wireless communications application field.
Background technology
Early in nineteen sixty-five, US military has established the basis of super-broadband tech.Hereafter in 20 years, super-broadband tech master
It to be U.S. Military service.Around here, tens of kinds of radio ultra wide band systems of research institution and Corporation R & D that US military is supported.1989
Year, U.S. Department of Defense uses this term of ultra wide band for the first time.Since super-broadband tech is in the successful application of military domain, 20th century
End starts super-broadband tech and is gradually introduced into civil field.Until 2002, Federal Communications Commission FCC (Federal
Communication Committee) super-broadband tech is applied to civilian proposal and worked out ultra wide band by formal passed through
The standard of wireless communication technique：Absolute bandwidth is more than 500MHz or relative bandwidth and is more than 20%, and working band covering 3.1~
10.6GHz.The Technology of Ultra has transmission rate high (up to hundreds of megabits per second), strong antijamming capability, band
The features such as wide extremely wide, power system capacity is big, transmission power is low, transmission range is short.Make its wireless communication, radio frequency identification and radar at
There is wide application prospect in the fields such as picture.The dielectric resonator of early stage is mainly used in microwave circuit (oscillator, filter),
Dielectric resonator at this time usually as energy accumulator rather than radiator.Although scholar has found open Jie a long time ago
Matter resonator can be used as radiator, but until nineteen eighty-three Long etc. has delivered cylindrical dielectric resonator antenna for the first time
After paper, the research about medium resonator antenna is just gradually spread out.Medium resonator antenna have small, light weight,
It is at low cost, easy of integration, flexible, unwise to machining accuracy without surface wave loss and metal loss, radiation efficiency height, feeding classification
The advantages that sense, makes it be widely used in modern wireless communication field.But since dielectric resonator Q values are higher,
Bandwidth relative narrower.Many scholars have carried out a large amount of research to the method for improving medium resonator antenna bandwidth in recent years.It grinds
Study carefully and show significantly improve the bandwidth of medium resonator antenna by changing dielectric resonator structure, feeding classification etc., makes
It reaches broadband, ultra wide band.But the section height of these designs is generally higher, can not be applied to the small-sized wireless communication of low section
Equipment.Document (D.Guha, B.Gupta, Y.M.M.Antar, " Hybrid Monopole-DRAs Using
Hemispherical/Conical-Shaped Dielectric Ring Resonators:Improved
Ultrawideband Designs,”IEEE Transactions on Antennas and Propagation,Volume:
60,Publication Year:2012,Page(s):It is humorous using medium 393-398.) by changing the structure of dielectric resonator
The device that shakes devises ultra-wideband antenna with the mode that monopole antenna is combined.This antenna by Intermediate Gray cylindrical cavity hemispherical
Dielectric resonator, monopole antenna and round ground level are constituted.Dielectric resonator dielectric constant is 10, impedance bandwidth 5~
21GHz, relative bandwidth 126%.Antenna size：Horizon radius surface is 35mm, and section height is more than 11mm.Document (C.Ozzaim,
F.Ustuner,N.Tarim,“Stacked Conical Ring Dielectric Resonator Antenna Excited
by a Monopole for Improved Ultrawide Bandwidth,”IEEE Transactions onAntennas
and Propagation,Volume:61,Publication Year:2013,Page(s):1435-1438.) by two centres
There is the conical dielectric resonator of cylindrical cavity to be stacked together and places monopole antenna in centre to obtain ultra wide band spy
Property.Dielectric resonator dielectric constant is 10,2.8~15.2GHz of impedance bandwidth, relative bandwidth 138%.Antenna size：Bottom surface half
Diameter 17mm, section height are more than 22mm.Document (M.Abedian, S.K.A.Rahim, M.Khalily, " Two-Segments
Compact Dielectric ResonatorAntenna for UWB Application,”IEEE Antennas and
Wireless Propagation Letters,Volume:11,Publication Year:2012,Page(s):1533-
1537.) by two differing dielectric constants, various sizes of Rectangular Enclosure with Participating Media resonator interfolded and with U-shaped printed monopole day
Line is combined, to obtain ultra wide band characteristic.The Rectangular Enclosure with Participating Media resonator dielectric constant of lower layer is 30, to improve coupled characteristic；On
The Rectangular Enclosure with Participating Media resonator dielectric constant of layer is 15, to reduce Q values, increase bandwidth.This antenna impedance bandwidth be 3.14~
10.9GHz, relative bandwidth 110%.Antenna size：18mm×36mm×11mm.
Invention content
For the disadvantage for overcoming traditional sucrose resonant aerial section high, the present invention provides a kind of ultra wideband omni-directional low section
Discrete embedded medium resonator antenna, the antenna ensure that preferable ultra wide band characteristic (effectively covers work as defined in FCC
Make frequency range), on the basis with relatively stable gain and higher radiation efficiency, substantially reduce the section height of antenna.
Further, since the antenna has omnidirectional radiation characteristic, therefore can preferably be matched with the electromagnetic wave realization of all directions in passband.The day
Cable architecture is simple, section is low, cost is relatively low, easy processing is, it can be achieved that batch production, is suitable for modern various broadbands, ultra wide band
Application scenario, situation especially extremely harsh to section high request.
The present invention adopts the following technical scheme that：A kind of discrete embedded medium resonator antenna of ultra wideband omni-directional low section,
It is characterised in that it includes top dielectric resonator, layer dielectric resonator, rectangular monopole, leftwards planar rectangular recess, the right side
Side ground level rectangular depression, left side ground level, right side ground level, medium substrate, co-planar waveguide left side gap, co-planar waveguide right side
Gap, medium substrate include the medium substrate back side, medium substrate front；
The top dielectric resonator, layer dielectric resonator are the identical equilateral triangle of size, top dielectric resonance
Device, layer dielectric resonator are identical as the thickness of medium substrate；The medium substrate top fluting, layer dielectric resonator are complete
Inside embedding medium substrate；The top dielectric resonator layer face is stacked in right over layer dielectric resonator and right therewith
Together, the rectangular monopole is printed on medium substrate front, and part is located at top dielectric resonator and layer dielectric resonator
Between, the other end of rectangular monopole is connected with straight microstrip feed line；The straight microstrip feed line is from the side of rectangular monopole
Middle part extends to the marginal position of medium substrate vertically；The lower part both sides of medium substrate are set respectively along the marginal portion of medium substrate
Be equipped with along the symmetrical left side ground level of straight microstrip feed line and right side ground level, the top of left side ground level and right side ground level with it is straight
Leftwards planar rectangular recess, right side ground level rectangular depression, left side Horizon are respectively formed between the top both sides of microstrip feed line
Gap, coplanar wave on the left of co-planar waveguide are respectively formed between the lower part both sides of the lower part and straight microstrip feed line of face and right side ground level
Lead right side gap.
Compared with prior art, the advantageous effect of inventive antenna is：
1, simple in structure, small, light weight.The discrete embedded dielectric resonator of ultra wideband omni-directional low section of the present invention
Antenna is mainly by two equilateral triangle dielectric resonators, medium substrate, rectangular monopole antenna and coplanar wave guide feedback system
Composition, structure is relatively easy, and small, light weight, easy processing, such as the medium of 3.44~10.85GHz of frequency coverage are humorous
Shake device antenna, and size is 17.6mm × 33.6mm × 1.524mm.
2, antenna pattern is good, and the discrete embedded medium resonator antenna of ultra wideband omni-directional low section of the invention has
Good omnidirectional radiation characteristic, due to medium resonator antenna be equilateral triangle symmetrical structure so that the faces E of antenna and
H surface radiations directional diagram is all in lower cross-polarization levels.
3, the antenna has relatively stable gain and higher radiation efficiency.The ultra wideband omni-directional low section of the present invention is discrete
Embedded medium resonator antenna gain stabilization within the scope of entire working band is humorous due to adding medium in 2.5dB or so
Shake device, and each face of dielectric resonator can all form Net long wave radiation, therefore effectively increase radiation efficiency, which exists
95% or more.
Description of the drawings
Fig. 1 is a kind of a kind of discrete embedded knot of embodiment of medium resonator antenna of ultra wideband omni-directional low section of the present invention
Structure schematic diagram, wherein Fig. 1 (a) is main structure diagram, and Fig. 1 (b) is backsight structural representation, and Fig. 1 (c) is stereochemical structure
Schematic diagram, Fig. 1 (d) are left view structural representation.
Fig. 2 is a kind of returning for the discrete embedded medium resonator antenna of ultra wideband omni-directional low section of the embodiment of the present invention 1
Wave damage curve figure.
Fig. 3 is a kind of electricity of the discrete embedded medium resonator antenna of ultra wideband omni-directional low section of the embodiment of the present invention 1
Press standing-wave ratio curve graph.
Fig. 4 is that a kind of discrete embedded medium resonator antenna of ultra wideband omni-directional low section of the embodiment of the present invention 1 exists
The faces E of 5GHz and the faces H cross polarization radiations directional diagram, wherein Fig. 4 (a) are H plane radiation patterns, and Fig. 4 (b) figures are E planes
Antenna pattern.
Fig. 5 is that a kind of discrete embedded medium resonator antenna of ultra wideband omni-directional low section of the embodiment of the present invention 1 exists
The faces E of 8GHz and the faces H cross polarization radiations directional diagram, wherein Fig. 5 (a) are H plane radiation patterns, and Fig. 5 (b) is E plane spokes
Penetrate directional diagram.
Fig. 6 is that a kind of discrete embedded medium resonator antenna of ultra wideband omni-directional low section of the embodiment of the present invention 1 exists
The faces E of 10.2GHz and the faces H cross polarization radiations directional diagram, wherein Fig. 6 (a) are H plane radiation patterns, and Fig. 6 (b) is E planes
Antenna pattern.
Fig. 7 is a kind of increasing of the discrete embedded medium resonator antenna of ultra wideband omni-directional low section of the embodiment of the present invention 1
Benefit figure.
In Fig. 1,1- top dielectric resonators, 2- layer dielectric resonators, 3- rectangular monopoles, the right sides 4- ground level rectangle
Recess, leftwards planar rectangular is recessed 5-, ground level on the left of 6-, ground level on the right side of 7-, the 8- medium substrates back side, 9- medium substrates
Front, 10- co-planar waveguides left side gap, 11- co-planar waveguides right side gap.
Specific implementation mode
With reference to embodiment and attached drawing, the present invention is described in further detail.
A kind of discrete embedded medium resonator antenna (abbreviation antenna, referring to Fig. 1) of ultra wideband omni-directional low section of the present invention,
Including top dielectric resonator 1, layer dielectric resonator 2, rectangular monopole 3, leftwards planar rectangular recess 4, right side Horizon
Face rectangular depression 5, left side ground level 6, right side ground level 7, medium substrate, co-planar waveguide left side gap 10, co-planar waveguide right side
Gap 11, medium substrate include the medium substrate back side 8, medium substrate front 9.
The top dielectric resonator 1, layer dielectric resonator 2 are made of dielectric constant of 20 dielectric material, are ruler
Very little identical equilateral triangle, top dielectric resonator 1, layer dielectric resonator 2 are identical as the thickness of medium substrate；It is given an account of
Matter substrate top is slotted, and layer dielectric resonator 2 is completely embedded into inside medium substrate.1 layer of face of the top dielectric resonator
It is stacked in right over layer dielectric resonator 2 and aligned, the rectangular monopole 3 is printed on medium substrate front 9, and portion
Divide between top dielectric resonator 1 and layer dielectric resonator 2, the other end of rectangular monopole 3 and straight microstrip feed line phase
Connection.The straight microstrip feed line extends to the marginal position of medium substrate from the middle part of the side of rectangular monopole 3 vertically.Medium
The lower part both sides of substrate are respectively arranged with along the marginal portion of medium substrate along the symmetrical left side ground level 6 of straight microstrip feed line and the right side
It is respectively formed a left side between the top of side ground level 7, left side ground level 6 and right side ground level 7 and the top both sides of straight microstrip feed line
The lower part of side ground level rectangular depression 4, right side ground level rectangular depression 5, left side ground level 6 and right side ground level 7 and straight micro-strip
Gap 10 on the left of co-planar waveguide, gap 11 on the right side of co-planar waveguide are respectively formed between the lower part both sides of feeder line.
The medium substrate top fluting, layer dielectric resonator perfection is embedded, total in lower part and intermediate printing
Surface wave leads feed system and rectangular monopole, and top dielectric resonator is placed right over layer dielectric resonator, described coplanar
Waveguide feed system includes two band rectangular depression ground levels and intermediate straight microstrip feed line, is printed on medium substrate front, intermediate
Straight microstrip feed line top connects rectangular monopole, and terminal connects coaxial fitting, and two band rectangular depression ground levels are symmetrically printed on
Intermediate straight microstrip feed line both sides.
Embodiment 1
The present embodiment provides a kind of discrete embedded medium resonator antennas of ultra wideband omni-directional low section, which includes upper
Layer dielectric resonator 1, layer dielectric resonator 2, rectangular monopole 3, leftwards planar rectangular recess 4, right side ground level rectangle
Recess 5, left side ground level 6, right side ground level 7, the medium substrate back side 8, medium substrate front 9, gap 10 on the left of co-planar waveguide,
Gap 11 on the right side of co-planar waveguide；The two layer medium resonator is the identical equilateral triangle of size, lower layer's embedding medium substrate
Top, upper layer are just stacked on lower layer, the rectangular monopole be printed on the positive Middle face of medium substrate and with straight microstrip feed line
It is connected, and between partial insertion two layer medium resonator, the wherein embedded layer dielectric resonance of medium substrate top fluting
Top dielectric resonator is placed in the surface of layer dielectric resonator by device, in lower part and intermediate printing coplanar wave guide feedback system
System and rectangular monopole, the coplanar wave guide feedback system include the straight microstrip feed line of two band rectangular depression ground levels and centre,
It is printed on medium substrate front lower half, intermediate straight microstrip feed line top connects rectangular monopole, and terminal connects coaxial fitting, and two
A band rectangular depression ground level is symmetrically printed on intermediate straight microstrip feed line both sides；
Dielectric resonator 1,2 shape of layer dielectric resonator are the identical equilateral triangle of size to the present embodiment at the middle and upper levels,
Dielectric constant is 20, length of side 16.45mm, thickness 0.762mm.
Medium substrate is rectangle, dielectric constant 3, and medium substrate size is Ls=33.6mm, Ws=17.6mm, and thickness is
0.762mm。
3 size of rectangular monopole is 6mm × 5.7mm, between partial insertion two layer medium resonator.
Leftwards planar rectangular recess 4,5 size of right side ground level rectangular depression are 0.3mm × 6.3mm.
Left side ground level 6,7 size of right side ground level are 7.5mm × 14.5mm.
The width in gap 11 is 0.4mm, length 8.2mm on the right side of co-planar waveguide left side gap 10, co-planar waveguide.
The characteristic impedance of straight microstrip feed line is 50 Ω, and top connects rectangular monopole, and terminal connects coaxial fitting.
Antenna size in embodiment 1 is only 17.6mm × 33.6mm, and thickness 1.524mm is greatly reduced antenna
Section height, while reducing the volume and quality of antenna.
Fig. 2 is the return loss measurement result of antenna in embodiment 1, S11Frequency range less than -10dB is 3.44~
10.85GHz, relative bandwidth 104%, the S especially in 3.79~10.66GHz frequency ranges11Less than -13dB.
Fig. 3 be embodiment 1 in antenna voltage standing wave ratio measurement result, as shown in the figure above-mentioned return loss be less than-
The voltage standing wave ratio of the frequency range internal antenna of 10dB is respectively less than 2, meets engine request.
Fig. 4, Fig. 5, Fig. 6 are that H plane and E of the antenna in frequency 5GHz, 8GHz and 10.2GHz are flat in embodiment 1 respectively
The radiation pattern of surface radiation directional diagram, embodiment 1 as shown in the figure (is made of) spoke close to dipole two monopoles
Directional diagram is penetrated, illustrates that the radiation mechanism of the antenna is monopole radiation mechanism, H plane radiation patterns have good omnidirectional
Property, meet engine request, in addition, the antenna has preferable E planes and H plane cross-polar water in entire working frequency range
It is flat.
Fig. 7 is the gain measurements of antenna in embodiment 1, and gain is more than in most of working frequency range as shown in the figure
1.55dB, the maximum gain in passband are 4.85dB, least gain 0.48dB, it is seen that the antenna have in working frequency range compared with
Stable gain.
Inventive antenna have low section, the gain that small, simple in structure, low-cross polarization is horizontal, relatively stable and compared with
The advantages that high radiation efficiency, especially suitable for small-sized, low section, broadband, super broad band radio communication field.
Above-described embodiment 1 is the preferable embodiment of the present invention, in addition on the basis of the present embodiment, dielectric resonator one
It is divided into two, layer dielectric resonator installation by adhering, dielectric resonator thickness is equal with dielectric substrate thickness, rectangular monopole portion
Equal technical characterstics all should include within the scope of protection of this application between dividing insertion dielectric resonator.
The present invention does not address place and is suitable for the prior art.
Claims (8)
1. a kind of discrete embedded medium resonator antenna of ultra wideband omni-directional low section, which is characterized in that humorous including top dielectric
Shake device, layer dielectric resonator, rectangular monopole, leftwards planar rectangular recess, right side ground level rectangular depression, left side Horizon
Face, right side ground level, medium substrate, co-planar waveguide left side gap, co-planar waveguide right side gap, medium substrate includes medium substrate
The back side, medium substrate front；
The top dielectric resonator, layer dielectric resonator be the identical equilateral triangle of size, top dielectric resonator, under
Layer dielectric resonator is identical as the thickness of medium substrate；The medium substrate top fluting, layer dielectric resonator are completely embedded into
Inside medium substrate；The top dielectric resonator layer face is stacked in right over layer dielectric resonator and aligned, institute
It states rectangular monopole and is printed on medium substrate front, and partly between top dielectric resonator and layer dielectric resonator,
The other end of rectangular monopole is connected with straight microstrip feed line；The straight microstrip feed line is perpendicular from the middle part of the side of rectangular monopole
The straight marginal position for extending to medium substrate；The lower part both sides of medium substrate are respectively arranged with edge along the marginal portion of medium substrate
It is presented with straight micro-strip on the top of ground level and right side ground level on the left of straight microstrip feed line is symmetrical, left side ground level and right side ground level
Leftwards planar rectangular recess, right side ground level rectangular depression, left side ground level and the right side are respectively formed between the top both sides of line
Gap on the left of co-planar waveguide is respectively formed between the lower part of side ground level and the lower part both sides of straight microstrip feed line, on the right side of co-planar waveguide
Gap.
2. the discrete embedded medium resonator antenna of a kind of ultra wideband omni-directional low section according to claim 1, feature
It is, top dielectric resonator, layer dielectric resonator shape are the identical equilateral triangle of size, and dielectric constant is 20,
The length of side is 16.45mm, thickness 0.762mm.
3. the discrete embedded medium resonator antenna of a kind of ultra wideband omni-directional low section according to claim 1, feature
It is, medium substrate is rectangle, dielectric constant 3, and medium substrate size is Ls=33.6mm, Ws=17.6mm, and thickness is
0.762mm。
4. the discrete embedded medium resonator antenna of a kind of ultra wideband omni-directional low section according to claim 1, feature
It is, rectangular monopole size is 6mm × 5.7mm.
5. the discrete embedded medium resonator antenna of a kind of ultra wideband omni-directional low section according to claim 1, feature
It is, leftwards planar rectangular recess, right side ground level rectangular depression size are 0.3mm × 6.3mm.
6. the discrete embedded medium resonator antenna of a kind of ultra wideband omni-directional low section according to claim 1, feature
It is, left side ground level, right side ground level size are 7.5mm × 14.5mm.
7. the discrete embedded medium resonator antenna of a kind of ultra wideband omni-directional low section according to claim 1, feature
It is, the width in gap is 0.4mm, length 8.2mm on the right side of co-planar waveguide left side gap, co-planar waveguide.
8. the discrete embedded medium resonator antenna of a kind of ultra wideband omni-directional low section according to claim 1, feature
It is, the characteristic impedance of straight microstrip feed line is 50 Ω, and top connects rectangular monopole, and terminal connects coaxial fitting.
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Cited By (2)
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| CN110649383A (en) * | 2019-10-22 | 2020-01-03 | 西安电子科技大学 | Broadband dual-circularly-polarized antenna based on dielectric resonator loading |
| CN113540761A (en) * | 2021-06-28 | 2021-10-22 | 深圳市信维通信股份有限公司 | Broadband dielectric resonator antenna and electronic device |
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