CN106505308A - A kind of horizontally polarized omnidirectional dielectric resonator antenna of new type water - Google Patents

A kind of horizontally polarized omnidirectional dielectric resonator antenna of new type water Download PDF

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Publication number
CN106505308A
CN106505308A CN201610938265.5A CN201610938265A CN106505308A CN 106505308 A CN106505308 A CN 106505308A CN 201610938265 A CN201610938265 A CN 201610938265A CN 106505308 A CN106505308 A CN 106505308A
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China
Prior art keywords
dielectric disk
arc
dielectric
impedance matching
gradual change
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CN201610938265.5A
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CN106505308B (en
Inventor
杨虎
何艳
刘桃林
卢俊麒
刘燚
徐延林
王禾
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National University of Defense Technology
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National University of Defense Technology
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    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/36Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/50Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04Resonant antennas
    • H01Q9/30Resonant antennas with feed to end of elongated active element, e.g. unipole

Abstract

The present invention provides a kind of dielectric resonator antenna.Technical scheme is:Including two identical medium annulus and an exciting bank being clipped between two medium annulus, exciting bank includes arc monopole, conical gradual change line and the impedance matching band being etched on dielectric disk.Impedance matching band is the border circular areas etched centered on the center of circle of dielectric disk.Each conical gradual change line is electrically connected with impedance matching band, and each conical gradual change line is electrically connected with an arc monopole, and four conical gradual change lines are symmetrical with regard to dielectric disk central rotation, and four arc monopoles are symmetrical with regard to dielectric disk central rotation.The present invention has exciting bank simple, and omni-directional is high, and the advantage of compact conformation is can be widely applied in wireless communication system.

Description

A kind of horizontally polarized omnidirectional dielectric resonator antenna of new type water
Technical field
The invention belongs to omnidirectional antenna technical field, is in particular a kind of horizontal linear polarization omnidirectional dielectric resonance day Line, and the antenna is the characteristics of have the high omni-directional of horizontal plane, simple incentive structure and compact overall dimensions.
Background technology
Antenna is different by its directivity, can be divided into beam antenna and omnidirectional antenna.Omnidirectional antenna refers to real in the horizontal plane Existing 360 ° of homogeneous radiations, have the antenna of certain beam angle in vertical.The signal of omni-directional antenna transmission can be by horizontal plane The receiving terminal of arbitrary orientation is received, while the signal of horizontal plane all directions can be received.Omnidirectional antenna is in a wireless communication system It is generally used for covering on a large scale, the occasion such as point-to-multipoint delivery, such as radio and television.Militarily, omnidirectional antenna is logical in satellite The fields such as letter, radar sensor networks, spacecraft are widely used;In daily life, omnidirectional antenna extensively should For occasions such as mobile communication, RF identification, Channel Detections.Relative to mechanical scanning antennas and phased array antenna, omnidirectional antenna Can realize naturally that 360 ° of omnidirectionals cover, and structure is relatively easy.
In a wireless communication system, if all changing the vertical depolarized omnidirectional antenna of transmitting terminal and receiving terminal into horizontal polarization Omnidirectional antenna, under otherwise identical conditions, the signal intensity for receiving will increase 10dB or so.Existing frequently-used horizontal polarization is complete To be realized by class electric current loop microstrip structure mostly to antenna, this kind of antenna in practical application, the omni-directional of horizontal plane compared with Difference, in more than 2dB.If improving the omni-directional of horizontal plane, the radiation of antenna and feed structure will be complicated, and antenna is in level The gain in face will reduce.
Nineteen eighty-three Long S A, research team systematically proposed DRA (dielectric resonator first Antenna, dielectric resonator antenna).Microstrip antenna is compared, DRA there are many advantages:
1st, flexible design degree is high.Dielectric constant species is more, and the scope that can be selected is larger;Dielectric resonator antenna size and Jie Two/first power of the relative dielectric constant of matter is inversely proportional to, and under same frequency, dielectric constant is bigger, and antenna size is less, Thus antenna size can be neatly adjusted, realize the Miniaturization Design of antenna.
2nd, contour structures are various, and mode of resonance is enriched.Dielectric resonator antenna except have rectangle, cylinder, hemispherical etc. this Outside a little basic configurations, given shape, such as Ring-cylindrical can also be designed according to actual needs.And the dielectric resonator antenna of each shape There are different modes of resonance, it is possible to use different modes of resonance improves antenna performance.
3rd, dielectric resonator antenna is substantially not present metal loss, thus when frequency is raised, the ohmic loss of metal antenna adds The dielectric resonator antenna of low-loss dielectric material making, the radiation efficiency of antenna when big, is selected to be easier to improve.
In recent years, omnidirectional's dielectric resonator antenna had become study hotspot, and horizontally polarized omnidirectional antenna, dual polarization and circle Polarized omnidirectional antenna is even more and is subject to industry extensive concern.
Content of the invention
The purpose of the present invention is to propose to a kind of with new exciting bank, horizontal linear polarization, omnidirectional radiation characteristic medium Resonant antenna, the dielectric resonator antenna have exciting bank simple, and omni-directional is high, and the advantage of compact conformation can be widely applied to In wireless communication system.
The technical scheme is that:A kind of dielectric resonator antenna, including two identical medium annulus and one The individual exciting bank being clipped between two medium annulus, exciting bank include dielectric disk and the arc being etched on dielectric disk Shape monopole, conical gradual change line and impedance matching band;The center of two medium annulus and exciting bank are centrally located at same On straight line;
Wherein, the concrete structure of exciting bank is:The front of dielectric disk includes an impedance matching band, four tapers gradually Modified line and four arc monopoles;Impedance matching band is the border circular areas etched centered on the center of circle of dielectric disk, impedance The diameter of matching strip is slightly less than the internal diameter of medium annulus;Every conical gradual change line is electrically connected with impedance matching band, every taper Transition line is electrically connected with an arc monopole, and four conical gradual change lines are symmetrical with regard to dielectric disk central rotation, four arcs Monopole is symmetrical with regard to dielectric disk central rotation;The reverse side of dielectric disk is identical with Facad structure;Front from dielectric disk Had an X-rayed, four arc monopoles of four arc monopoles and dielectric disk reverse side in dielectric disk front are located at same circle Week, and the arc monopole of the arc monopole and dielectric disk reverse side in dielectric disk front is staggered;
Additionally, the center of dielectric disk is provided with through hole.The impedance matching band of dielectric disk obverse and reverse connects same respectively The internal and external conductor of shaft coupling.
Beneficial effects of the present invention are:
The present invention provide antenna only include two medium annulus and an exciting bank, with new succinct the characteristics of. Exciting bank can effectively encourage the AD HOC of medium annulus so that antenna can radiate the horizontal polarized wave of omnidirectional.? In working band, the greatest irradiation direction of the antenna is in horizontal plane (medium annulus place plane), and ensures in the horizontal plane to increase While beneficial, antenna has high isotropic feature.Additionally, designed antenna structure is compact, aggregate efficiency is higher.
Description of the drawings
Fig. 1 is the three dimensional structure diagram of the present invention, and wherein left one side of something is practical structures figure, and right one side of something is that structure is launched Figure;
Fig. 2 is the structural representation of the exciting bank referred in the present invention, and wherein Fig. 2 (a) is the top view of exciting bank, Fig. 2 (b) is the bottom view of exciting bank;Fig. 2 (c) is the front perspective view of exciting bank.
Specific embodiment
The present invention is described in detail below in conjunction with the accompanying drawings.
The horizontally polarized omnidirectional dielectric resonator antenna of new type water that the present invention is provided includes two identical 1 Hes of medium annulus Medium annulus 2 and exciting bank 3.
Fig. 1 is the three dimensional structure diagram of the present invention.As illustrated, omnidirectional's dielectric resonator antenna includes two medium annulus 1 is identical with 2.The external diameter of the diameter of the dielectric disk of exciting bank 3 and medium annulus 1 is equal.As shown in figure 1, actually The upper surface of the lower surface of medium annulus 1 and exciting bank 3 is combined closely, under the upper surface of medium annulus 2 and exciting bank 3 Surface is combined closely, and can fasten medium annulus 1, medium annulus 2 and exciting bank 3 with insulating cement or medium screw during making Together.The central shaft of medium annulus 1, medium annulus 2 and exciting bank 3 is located on the same line.
Fig. 2 is the structural representation of the exciting bank referred in the present invention.As shown in Fig. 2 (a), the medium of exciting bank 3 300 front of disk includes impedance matching 301, four conical gradual change lines 302 of band and four arc monopoles 303, four cones Shape transition line 302 is identical, and four arc monopoles 303 are identical.Impedance matching band is carved centered on the center of circle of dielectric disk 300 The border circular areas for are lost, the diameter of impedance matching band is slightly less than the internal diameter of medium annulus 1.Every conical gradual change line 302 with resistance The 301 band electrical connection of anti-coupling, every conical gradual change line 302 are electrically connected with an arc monopole 303, four conical gradual change lines 302 is symmetrical with regard to dielectric disk central rotation, and four arc monopoles 303 are symmetrical with regard to 300 central rotation of dielectric disk.Medium The center in 300 front of disk is provided with through hole 304, the inner wire of the impedance matching with 301 connection coaxial fittings in front.Such as Fig. 2 (b) Shown, the reverse side of dielectric disk includes impedance matching 311, four conical gradual change lines 312 of band and four arc monopoles 313.The reverse side of dielectric disk is identical with Facad structure.As shown in Fig. 2 (c), 300 front of dielectric disk of exciting bank is saturating View shows that four arc monopoles 313 of four arc monopoles 303 and exciting bank reverse side in dielectric disk front are located at Same circumference, and four arc monopoles of four arc monopoles and reverse side in front are staggered.
The new antenna that the present invention is provided has horizontally polarized omnidirectional radiation characteristic, and has under conditions of gain is ensured High omni-directional.The external diameter of medium annulus, internal diameter can be determined according to actual operation requirements.By choosing relative Jie of medium annulus The suitable impedance matching band of electric constant, size, conical gradual change line and arc monopole, can design with similar performance, use Horizontally polarized omnidirectional dielectric resonator antenna in different frequency range.The technical scheme provided using the present invention, is carried out in microwave dark room Checking, antenna omnidirectional are high, i.e. horizontal radiation pattern undulatory property is within 0.5dB;Compact conformation, maximum electrical length are smaller than 0.35.

Claims (1)

1. a kind of horizontally polarized omnidirectional dielectric resonator antenna, it is characterised in that including two identical medium annulus and One exciting bank being clipped between two medium annulus, exciting bank include dielectric disk and are etched on dielectric disk Arc monopole, conical gradual change line and impedance matching band;The center of two medium annulus and exciting bank are centrally located at same On bar straight line;
Wherein, the concrete structure of exciting bank is:The front of dielectric disk includes an impedance matching band, four identical tapers Transition line and four identical arc monopoles;Impedance matching band is the circle etched centered on the center of circle of dielectric disk Domain, the diameter of impedance matching band are slightly less than the internal diameter of medium annulus;Every conical gradual change line is electrically connected with impedance matching band, per Bar conical gradual change line is electrically connected with an arc monopole, and four conical gradual change lines are symmetrical with regard to dielectric disk central rotation, and four Individual arc monopole is symmetrical with regard to dielectric disk central rotation;The reverse side of dielectric disk is identical with Facad structure;From dielectric disk Front had an X-rayed, four arc monopoles of four arc monopoles and dielectric disk reverse side in dielectric disk front are located at Same circumference, and the arc monopole of the arc monopole and dielectric disk reverse side in dielectric disk front is staggered;
Additionally, the center of dielectric disk is provided with through hole;The impedance matching band of dielectric disk obverse and reverse connects respectively and coaxially connects The internal and external conductor of head.
CN201610938265.5A 2016-10-25 2016-10-25 A kind of horizontally polarized omnidirectional dielectric resonator antenna of new type water Active CN106505308B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107706514A (en) * 2017-08-31 2018-02-16 西安电子科技大学 A kind of broadband horizontal polarization omnidirectional antenna
CN110635228A (en) * 2019-08-27 2019-12-31 南通大学 Dual-passband circularly polarized dielectric resonator antenna
CN111224226A (en) * 2020-01-08 2020-06-02 中国船舶重工集团公司第七二四研究所 Broadband miniaturization low-profile horizontal polarization omnidirectional antenna

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012081956A1 (en) * 2010-12-17 2012-06-21 Universiti Sains Malaysia 2.5 ghz dielectric resonator antenna (dra) for wireless communications
US20140022135A1 (en) * 2012-07-19 2014-01-23 Tensorcom, Inc. Method and Apparatus for a 60 GHz Endfire Antenna
CN105390809A (en) * 2015-11-17 2016-03-09 西安电子工程研究所 Broadband dielectric resonator antenna based on planar monopole patch excitation
CN106025547A (en) * 2016-06-14 2016-10-12 南通大学 Dual-polarization dielectric resonator antenna

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012081956A1 (en) * 2010-12-17 2012-06-21 Universiti Sains Malaysia 2.5 ghz dielectric resonator antenna (dra) for wireless communications
US20140022135A1 (en) * 2012-07-19 2014-01-23 Tensorcom, Inc. Method and Apparatus for a 60 GHz Endfire Antenna
CN105390809A (en) * 2015-11-17 2016-03-09 西安电子工程研究所 Broadband dielectric resonator antenna based on planar monopole patch excitation
CN106025547A (en) * 2016-06-14 2016-10-12 南通大学 Dual-polarization dielectric resonator antenna

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107706514A (en) * 2017-08-31 2018-02-16 西安电子科技大学 A kind of broadband horizontal polarization omnidirectional antenna
CN110635228A (en) * 2019-08-27 2019-12-31 南通大学 Dual-passband circularly polarized dielectric resonator antenna
CN110635228B (en) * 2019-08-27 2020-12-08 南通大学 Dual-passband circularly polarized dielectric resonator antenna
CN111224226A (en) * 2020-01-08 2020-06-02 中国船舶重工集团公司第七二四研究所 Broadband miniaturization low-profile horizontal polarization omnidirectional antenna

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