CN106058447A - Wideband wide beam circular polarization medium resonator antenna suitable to X wave band - Google Patents
Wideband wide beam circular polarization medium resonator antenna suitable to X wave band Download PDFInfo
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- CN106058447A CN106058447A CN201610322287.9A CN201610322287A CN106058447A CN 106058447 A CN106058447 A CN 106058447A CN 201610322287 A CN201610322287 A CN 201610322287A CN 106058447 A CN106058447 A CN 106058447A
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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
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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Abstract
The invention provides a wideband wide beam circular polarization medium resonator antenna suitable to X wave band, and belongs to the field of antennas. The antenna includes a medium substrate of which the right side is covered with a layer of metal surface mount device, a rectangular medium resonator which is arranged on the metal surface mount device, and an L-shaped feed microstrip antenna which is arranged on the back side of the medium substrate. The 4 corners of the bottom part of the rectangular medium resonator are dug out 4 same dimension rectangular medium blocks, and cross-slot-coupled the L-shaped microstrip antenna feed are adopted, so that the features of the wideband of the antenna area realized. The antenna is advantaged by wide frequency band, low profile, easiness to process, high stability of directional diagram within the working frequency band and wide wave beam width.
Description
Technical field
The invention belongs to field of antenna, be specifically related to a kind of broadband and wide wave beam circularly polarized dielectric resonance being applicable to X-band
Device antenna.This antenna has the widest impedance bandwidth and axial ratio bandwidth.
Background technology
Since dielectric resonator is proposed for radiating element, the research to dielectric resonator antenna both at home and abroad receives
Pay close attention to widely.Because dielectric resonator antenna has, volume is little, lightweight, it is low to be lost, be prone to excitation, excellent without surface wave excitation etc.
Point, so having the highest practical value.Under normal circumstances, the circular polarisation bandwidth of dielectric resonator antenna is the narrowest, and only 6%
Left and right.Along with radio communication is to bandwidth, stepping up of required communication rate, the medium that research has broadband circle polarized characteristic is humorous
Shake antenna, and the development to radio communication has actual meaning.
At present, research about broadband circle polarized dielectric resonator antenna both at home and abroad achieves some significant achievements.Logical
Often having two kinds of methods to utilize medium resonator antenna to realize circular polarisation, one is to use SF single feed technology, and two is to use feeding network
The duplex feeding technology of composition." IEEE Transactions On Antennas And Propagation " 1999 the 47th
Roll up 7 phase papers " Cross-Slot-Coupled Microstrip Antenna and Dielectric Resonator
Antenna for Circular Polarization " in have employed non-isometric crossed slit and realized by feed microstrip line
Circular polarisation, this structure is very simple, but its axial ratio bandwidth only has 3.91%.At " IEEE Microwave And Wireless
Components Letters " 2006 years volume 16 8 phase papers " Offset Cross-Slot-Coupled Dielectric
Resonator Antenna for Circular Polarization " in, have employed non-isometric crossed slit equally and pass through
Microstrip line offset-fed realizes circular polarisation, and circular polarisation bandwidth is increased by which, reaches 6.3%, but its axial ratio bandwidth still compares
Narrow.At " Microwave and Optical Technology Letters " volume 52 12 phase paper " Compact in 2010
Wideband Circularly Polarized Rectangular Dielectric Resonator Antenna With
Dual Underlaid Hybrid Couplers " in, have employed feeding network and carry out duplex feeding technology, medium resonator antenna
Axial ratio bandwidth be highly improved, but the broadband advantage that extremely complex feeding network makes antenna is made a discount.
Summary of the invention
The present invention proposes a kind of broadband and wide wave beam circularly polarized dielectric resonator antenna being applicable to X-band, by square
Bottom shape dielectric resonator, the Rectangular Enclosure with Participating Media block of four same sizes is dug up at four angles, uses cross coupling gap and L simultaneously
Shaped microstrip line feeds, to realize its broadband character.This antenna has broadband, low section, is prone to direction in processing, working band
The advantages such as figure stability height and beam angle width.
The technical solution used in the present invention is as follows:
A kind of broadband and wide wave beam circularly polarized dielectric resonator antenna being applicable to X-band, is coated with one layer of gold including front
Belong to the medium substrate of paster, the Rectangular Enclosure with Participating Media resonator being located on metal patch and the L-shaped feed being located at the medium substrate back side
Microstrip line, it is characterised in that: four equivalently-sized rectangular indentation are dug at four angles bottom dielectric resonator;
Described metal patch center is etched with cross coupling gap, and the limit corresponding with dielectric resonator, its limit is parallel;
Described L-shaped feeding microstrip line deviates with the geometric center in cross gap, and its feed port is positioned at medium substrate
Edge, and the path arriving another gap through a gap in cross gap meets and makes cross gap
Two coupling minor matters produce the length of 90 degree of phase contrasts.
Compared with prior art, it is an advantage of the current invention that:
(1) by four the rectangular indentation decussate texture formed and the crosss coupling gap bottom dielectric resonator
Structure coincides, and the energy being coupled to resonator is more concentrated, the electric field of coupling formed physically 90 degree orthogonal.
(2) use cross gap to add the feeding classification of L-shaped microstrip line, greatly widen the impedance bandwidth of antenna.
(3) decussate texture bottom dielectric resonator makes circular polarisation orthogonal modes be easier to excitation, improves antenna
3dB axial ratio bandwidth.
(4) decussate texture bottom dielectric resonator makes electric field be gathered in its edge more, to the ripple increasing antenna
Beam width has obviously effect.
(5) L-shaped feed microstrip line is passed through in cross gap, in addition to having encouraged the basic mode of medium itself, moreover it is possible to encourage
Two extra patterns, to increase the impedance bandwidth of antenna.
(6) use L-shaped feeding microstrip line to produce 90 degree of phase contrasts at two gaps, stitched by adjustment compared to traditional
Gap length and for producing 90 degree of phase contrasts, the program has greater flexibility in follow-up regulation.
Accompanying drawing explanation
Fig. 1 is the top view of the embodiment of the present invention;
Fig. 2 is the side view of the embodiment of the present invention;
Fig. 3 is the return loss plot figure of the embodiment of the present invention;
Fig. 4 is the gain curve figure of the embodiment of the present invention;
Fig. 5 is the axial ratio bandwidth figure of the embodiment of the present invention;
Fig. 6 is the far field circular polarization radiation directional diagram of four different frequent points of antenna of the embodiment of the present invention, wherein Fig. 6 (a)
For antenna at the antenna pattern of 9.3GHz, Fig. 6 (b) is the antenna antenna pattern at 9.6GHz, and Fig. 6 (c) is that antenna exists
The antenna pattern of 9.9GHz, Fig. 6 (d) is the antenna antenna pattern at 10.2GHz, and left side is the antenna radiation in xoz face
Directional diagram, right side is the antenna antenna pattern in yoz face;In figure, solid line represents LHCP, and dotted line represents RHCP.
Drawing reference numeral illustrates: 1 dielectric resonator;2 coupling gaps;3L shape feeding microstrip line;4 rectangular indentation;5 feed ends
Mouthful;6 metal patches;7 medium substrates.
Detailed description of the invention
A kind of broadband and wide wave beam circularly polarized dielectric being applicable to X-band of specific embodiment to the present invention below in conjunction with the accompanying drawings
Resonant aerial is described in further detail.
As shown in Figure 1, 2, it is adaptable to the broadband and wide wave beam circularly polarized dielectric resonator antenna of X-band includes: front covers
The square medium substrate, the Rectangular Enclosure with Participating Media resonator being located on metal patch that have layer of metal paster and be located at medium substrate
The L-shaped feeding microstrip line at the back side;Wherein medium substrate a size of 100mm × 100mm × 0.5mm, selection is that relative dielectric is normal
Number is 3.5, and loss angle tangent is the Taconic RF-35 of 0.0018;The length of dielectric resonator (material) is equivalently-sized with wide,
For 6.8mm × 6.8mm, height is 6.2mm, selection be relative dielectric constant be 9.2, loss angle tangent is 0.0022
RogersTMM10, four angles bottom dielectric resonator are dug four length × width × heights and are 2.1mm × 2.1mm × 1.1mm's
Rectangular indentation.
Metal patch center is etched with cross coupling gap, and wherein a length of 5mm of Ls1, live width are 0.9mm, Ls2 length
Being 0.8mm for 5.1mm, live width, the centrosymmetry point in cross gap overlaps with the centrosymmetry point of medium block.
The path that L-shaped feeding microstrip line arrives another gap through a gap in cross gap meets medium
Substrate dielectric constant is 3.5, thickness is 0.5mm, mid frequency is to produce the microstrip line needed for 90 degree of phase contrasts in the case of 10GHz
Length, wherein a length of 6mm of Lf1, live width be a length of 50.9mm of 1.1mm, Lf2, live width be 1.1mm, itself and cross gap
Distance sp2 of central point is 0.95mm.
Antenna is fed by the present invention by L-shaped feeding microstrip line, and energy passes through coupling from feed port through microstrip line
Slot-coupled in dielectric resonator, causes the resonance of dielectric resonator, thus outwards radiated electromagnetic wave.
The present invention digs up four by corner bottom medium block increases antenna impedance bandwidth and axle with size medium block
Ratio bandwidth, decussate texture and cross bottom medium block couple gap and are prone to the generation of orthogonal modes.
Fig. 3 is the impedance bandwidth simulation result of this example, and as seen from the figure, antenna impedance bandwidth (<-10dB) scope is:
8.9-11.6GHz, relative bandwidth is: 26.3%, and therefore, this antenna has wider bandwidth of operation.
Fig. 4 is the gain simulation result of this example, and as seen from the figure, antenna gain is maintained at 2.9dBi-6dBi, and this antenna increases
Benefit scope can guarantee that antenna normally works.Antenna gain maximum is 6dBi, occurs in the resonance point that diectric antenna size is corresponding
Near.
Fig. 5 is the axial ratio bandwidth simulation result of this example, as seen from the figure, antenna Circular polarization ratio bandwidth (< 3dB) scope
For: 9.16-10.69GHz, relative bandwidth is: 15.4%, and therefore, this antenna has the widest 3dB axial ratio bandwidth.
Fig. 6 is this example antenna far field circular polarization radiation directional diagram at four different frequent points, as seen from the figure, the master of antenna
Polarised direction is LHCP (Left-Hand Circular Polarization).Four different frequency 9.3GHz,
At 9.6GHz, 9.9GHz, 10.2GHz, main polarization (LHCP) of antenna is than cross polarization (RHCP < Right-Hand
Circular Polarization >) high about 20dB, there is good circular polarization radiation characteristic.And at four different frequencies
At Dian, the beam angle of antenna all can reach ± about 50 °, and directional diagram is stable.
In sum, the performance indications of inventive antenna all can meet the use demand of reality, has the strongest practicality
It is worth.
Claims (1)
1. it is applicable to a broadband and wide wave beam circularly polarized dielectric resonator antenna for X-band, is coated with layer of metal including front
The medium substrate of paster, the Rectangular Enclosure with Participating Media resonator being located on metal patch and the L-shaped feed being located at the medium substrate back side are micro-
Band wire, it is characterised in that: four equivalently-sized rectangular indentation are dug at four angles bottom dielectric resonator;
Described metal patch center is etched with cross coupling gap, and the limit corresponding with dielectric resonator, its limit is parallel;
Described L-shaped feeding microstrip line deviates with the geometric center in cross gap, and its feed port is positioned at the limit of medium substrate
Edge, and the path arriving another gap through a gap in cross gap meets and makes two of cross gap
Coupling minor matters produce the length of 90 degree of phase contrasts.
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Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107257026A (en) * | 2017-05-31 | 2017-10-17 | 中国科学院国家空间科学中心 | A kind of Waveguide slot array antenna |
CN107768825A (en) * | 2017-10-24 | 2018-03-06 | 华南理工大学 | A kind of cross circular polarisation slot antenna |
CN108023179A (en) * | 2018-01-02 | 2018-05-11 | 华南理工大学 | A kind of aqueous medium paster antenna of frequency reconfigurable |
CN109390673A (en) * | 2018-11-27 | 2019-02-26 | 成都北斗天线工程技术有限公司 | A kind of conformal medium resonator antenna of spill and its working method |
CN109904584A (en) * | 2019-01-29 | 2019-06-18 | 中国电子科技集团公司第三十八研究所 | A kind of dual polarized microstrip patch antenna unit and antenna array |
CN110299611A (en) * | 2019-07-22 | 2019-10-01 | 华东师范大学 | A kind of integrated diectric antenna of circular polarisation substrate |
CN112003009A (en) * | 2020-08-18 | 2020-11-27 | 大连海事大学 | Dielectric resonator antenna with wide axial ratio wave beam |
CN112787092A (en) * | 2021-01-04 | 2021-05-11 | 信维创科通信技术(北京)有限公司 | Coupling feed plane ultra wide band annular LTE antenna and electronic equipment |
CN112928448A (en) * | 2021-01-20 | 2021-06-08 | 维沃移动通信有限公司 | Antenna structure and electronic equipment |
CN113193370A (en) * | 2021-04-28 | 2021-07-30 | 电子科技大学 | Self-duplex dielectric resonator antenna based on mode orthogonality |
CN113659348A (en) * | 2021-07-20 | 2021-11-16 | 曲阜师范大学 | Super-surface-loaded circularly polarized dielectric resonator antenna |
CN113708046A (en) * | 2021-08-01 | 2021-11-26 | 南通大学 | Miniaturized broadband circular polarization three-dimensional printing mixed dielectric resonator antenna |
CN114824809A (en) * | 2022-04-02 | 2022-07-29 | 中山大学 | Dielectric resonator antenna with flat-top directional diagram characteristic |
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JP2000036708A (en) * | 1998-07-17 | 2000-02-02 | Harada Ind Co Ltd | Slot coupling type dielectric resonator antenna |
CN102694263A (en) * | 2011-03-25 | 2012-09-26 | 香港城市大学 | Elliptically or circularly polarized dielectric block antenna |
CA2885890A1 (en) * | 2012-09-24 | 2014-03-27 | The Antenna Company International N.V. | Lens antenna, method of manufacturing and using such an antenna, and antenna system |
CN103700939A (en) * | 2013-12-24 | 2014-04-02 | 电子科技大学 | Broadband-circularly-polarized dielectric resonator antenna |
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CN102694263A (en) * | 2011-03-25 | 2012-09-26 | 香港城市大学 | Elliptically or circularly polarized dielectric block antenna |
CA2885890A1 (en) * | 2012-09-24 | 2014-03-27 | The Antenna Company International N.V. | Lens antenna, method of manufacturing and using such an antenna, and antenna system |
CN103700939A (en) * | 2013-12-24 | 2014-04-02 | 电子科技大学 | Broadband-circularly-polarized dielectric resonator antenna |
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Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107257026A (en) * | 2017-05-31 | 2017-10-17 | 中国科学院国家空间科学中心 | A kind of Waveguide slot array antenna |
CN107768825A (en) * | 2017-10-24 | 2018-03-06 | 华南理工大学 | A kind of cross circular polarisation slot antenna |
CN107768825B (en) * | 2017-10-24 | 2024-05-07 | 华南理工大学 | Cross circular polarization groove antenna |
CN108023179A (en) * | 2018-01-02 | 2018-05-11 | 华南理工大学 | A kind of aqueous medium paster antenna of frequency reconfigurable |
CN109390673A (en) * | 2018-11-27 | 2019-02-26 | 成都北斗天线工程技术有限公司 | A kind of conformal medium resonator antenna of spill and its working method |
CN109390673B (en) * | 2018-11-27 | 2023-06-09 | 成都北斗天线工程技术有限公司 | Concave conformal dielectric resonator antenna and working method thereof |
CN109904584A (en) * | 2019-01-29 | 2019-06-18 | 中国电子科技集团公司第三十八研究所 | A kind of dual polarized microstrip patch antenna unit and antenna array |
CN110299611A (en) * | 2019-07-22 | 2019-10-01 | 华东师范大学 | A kind of integrated diectric antenna of circular polarisation substrate |
CN112003009B (en) * | 2020-08-18 | 2022-07-22 | 大连海事大学 | Dielectric resonator antenna with wide axial ratio wave beam |
CN112003009A (en) * | 2020-08-18 | 2020-11-27 | 大连海事大学 | Dielectric resonator antenna with wide axial ratio wave beam |
CN112787092B (en) * | 2021-01-04 | 2023-03-14 | 信维创科通信技术(北京)有限公司 | Coupling feed plane ultra wide band annular LTE antenna and electronic equipment |
CN112787092A (en) * | 2021-01-04 | 2021-05-11 | 信维创科通信技术(北京)有限公司 | Coupling feed plane ultra wide band annular LTE antenna and electronic equipment |
CN112928448B (en) * | 2021-01-20 | 2023-05-26 | 维沃移动通信有限公司 | Antenna structure and electronic equipment |
CN112928448A (en) * | 2021-01-20 | 2021-06-08 | 维沃移动通信有限公司 | Antenna structure and electronic equipment |
CN113193370B (en) * | 2021-04-28 | 2022-10-14 | 电子科技大学 | Self-duplex dielectric resonator antenna based on mode orthogonality |
CN113193370A (en) * | 2021-04-28 | 2021-07-30 | 电子科技大学 | Self-duplex dielectric resonator antenna based on mode orthogonality |
CN113659348A (en) * | 2021-07-20 | 2021-11-16 | 曲阜师范大学 | Super-surface-loaded circularly polarized dielectric resonator antenna |
CN113659348B (en) * | 2021-07-20 | 2023-07-18 | 曲阜师范大学 | Super-surface-loaded circularly polarized dielectric resonator antenna |
CN113708046A (en) * | 2021-08-01 | 2021-11-26 | 南通大学 | Miniaturized broadband circular polarization three-dimensional printing mixed dielectric resonator antenna |
CN113708046B (en) * | 2021-08-01 | 2023-07-25 | 南通大学 | Miniaturized broadband circularly polarized three-dimensional printing hybrid medium resonator antenna |
CN114824809A (en) * | 2022-04-02 | 2022-07-29 | 中山大学 | Dielectric resonator antenna with flat-top directional diagram characteristic |
CN114824809B (en) * | 2022-04-02 | 2023-07-18 | 中山大学 | Dielectric resonator antenna with flat-top directional pattern characteristic |
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