CN108011188A - A kind of three frequency range low section omnidirectional circular-polarized antennas - Google Patents

A kind of three frequency range low section omnidirectional circular-polarized antennas Download PDF

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Publication number
CN108011188A
CN108011188A CN201711211716.6A CN201711211716A CN108011188A CN 108011188 A CN108011188 A CN 108011188A CN 201711211716 A CN201711211716 A CN 201711211716A CN 108011188 A CN108011188 A CN 108011188A
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CN
China
Prior art keywords
circular
patch
millimeters
dielectric
slab
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Pending
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CN201711211716.6A
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Chinese (zh)
Inventor
李建
文光俊
黄勇军
吕文然
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University of Electronic Science and Technology of China
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University of Electronic Science and Technology of China
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Priority to CN201711211716.6A priority Critical patent/CN108011188A/en
Publication of CN108011188A publication Critical patent/CN108011188A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H01ELECTRIC 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
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/48Earthing means; Earth screens; Counterpoises
    • HELECTRICITY
    • H01ELECTRIC 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
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/10Resonant antennas
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/20Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
    • H01Q5/28Arrangements for establishing polarisation or beam width over two or more different wavebands

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  • Waveguide Aerials (AREA)

Abstract

The invention discloses a kind of three frequency range low section omnidirectional circular-polarized antennas, including dielectric-slab, dielectric-slab is disc-shaped structure, the centre of dielectric-slab is equipped with metallization VIA and feeding coaxial lines along the direction of medium plate axis, feeding coaxial lines are located at the center of dielectric-slab, metallization VIA is uniformly distributed in around feeding coaxial lines, the upper strata of dielectric-slab is equipped with circular metal patch, the center of circle of circular metal patch is located on the extended line of medium plate axis, the edge of circular metal patch is protruding to form three equally distributed microstrip-fed lines, angle between adjacent microstrip-fed line is 120 °;Radiating element is connected with microstrip-fed line, radiating element is arc-shaped structure, and the center of circle of radiating element is overlapped with the center of circle of circular metal patch.

Description

A kind of three frequency range low section omnidirectional circular-polarized antennas
Technical field
The invention belongs to electromagnetic antenna technical field, and in particular to a kind of three frequency range low section omnidirectional circular-polarized antennas.
Background technology
Circular polarized antenna main feature is mainly reflected in the following aspects:1st, circular polarized antenna can receive any polarized Incoming wave, and its radiated wave can also be received by any poliarizing antenna;2nd, circular polarized antenna has rotation direction orthogonality;3rd, polarized wave is incident Reversed to rotation direction when symmetric targets (such as plane, sphere), the electromagnetic wave of different rotation directions has larger value of polarization isolation.By There is the above in circular polarized antenna, along with the omni-directional of directional diagram, omnidirectional circular-polarized antenna is widely used in remote sensing The various aspects such as remote measurement, communication, radar, electronic reconnaissance and electronic interferences:In astronomical, space communication and remote measurement remote sensing equipment In, using omnidirectional circular-polarized antenna, the leakage of signal can be reduced, moreover it is possible to effectively eliminate by ionosphere Faraday rotation effect Caused polarization distortion effects;In electronic countermeasure, it can scout and disturb enemy except reversely pure using omnidirectional circular-polarized antenna The radio wave of various polarization modes outside circularly polarized signal;On the object that high-speed motion even acutely swings or rolls, such as Spacecraft, aircraft, naval vessels, automobile etc., device omnidirectional circular-polarized antenna, can receive nothing under any motion state Line electric signal;Omnidirectional circular-polarized antenna is used in radio data system, can effectively expand signal cover, and can be one Determine to overcome ghost image stress etc. in degree.It can be seen from the above that omnidirectional circular-polarized antenna is in remote measurement remote sensing, astronomy, radar, electronics pair The application of anti-, communication and television broadcasting etc. suffers from very important meaning.
The content of the invention
Present invention aim to address the above problem, there is provided can be on tri- frequency points of 1.32GHz, 2.0GHz, 2.77GHz Produce the three frequency range low section omnidirectional circular-polarized antenna of one kind of the circular polarisation electromagnetic wave of 360 ° of horizontal direction omnidirectional.
In order to solve the above technical problems, the technical scheme is that:A kind of three frequency range low section omnidirectional circular-polarized antennas, Including dielectric-slab, dielectric-slab is disc-shaped structure, the centre of dielectric-slab along the direction of medium plate axis be equipped with metallization VIA and Feeding coaxial lines, feeding coaxial lines are located at the center of dielectric-slab, and metallization VIA is uniformly distributed in around feeding coaxial lines, are situated between The upper strata of scutum is equipped with circular metal patch, and the center of circle of circular metal patch is located on the extended line of medium plate axis, circular gold Belong to patch edge it is protruding form three equally distributed microstrip-fed lines, the angle between adjacent microstrip-fed line is 120°;Radiating element is connected with microstrip-fed line, radiating element is arc-shaped structure, the center of circle of radiating element and circular metal The center of circle of patch overlaps;The lower floor of dielectric-slab is equipped with metal ground plate, and metal ground plate is circular configuration, the circle of metal ground plate Projection of the heart on dielectric-slab is overlapped with the center of circle of dielectric-slab, and circular metal patch and metal ground plate are connected by metallization VIA It is logical.
Preferably, the radiating element includes the first circular arc patch and the second circular arc patch, the first circular arc patch and second Circular arc patch is the different arc structure of radius, between the central angle of the first circular arc patch is 95 ° to 105 °, the second circular arc patch Central angle be 80 ° to 90 ° between.
Preferably, the center of circle of the first circular arc patch and the second circular arc patch overlaps, and the radius of the first circular arc patch is Between 21 millimeters to 22 millimeters, between the second circular arc patch radius is 17 millimeters to 17.5 millimeters, the first circular arc patch and second Between the width of circular arc patch is 1.2 millimeters to 1.6 millimeters.
Preferably, between the radius of the dielectric-slab is 23 millimeters to 24 millimeters, between relative dielectric constant is 2 to 2.5.
Preferably, the thickness of the circular metal patch, microstrip-fed line, radiating element and metal ground plate is 0.035 millimeter.
Preferably, between the radius of the circular metal patch is 12 millimeters to 16 millimeters.
Preferably, the feeding coaxial lines are cylinder metal probe structure, and the radius of the cross section of feeding coaxial lines is Between 0.5 millimeter to 0.7 millimeter, between the length of feeding coaxial lines is 3.17 millimeters to 3.18 millimeters, the feedback of feeding coaxial lines Electricity point is positioned at the center of circle of circular metal patch.
Preferably, the metallization VIA for radius between 0.3 millimeter to 0.5 millimeter, highly arrived for 3.17 millimeters Open column shape structure between 3.18 millimeters.
Preferably, between the radius of the metal ground plate is 19.2 millimeters to 19.6 millimeters.
Preferably, the bending direction of the radiating element is distributed along clockwise direction.
The beneficial effects of the invention are as follows:
1st, antenna of the present invention can be in three band operations, and can produce circularly polarised wave and horizontal direction is complete Angle radiation.
2nd, antenna of the present invention has relatively low section, is easily integrated.
3rd, antenna structure belonging to the present invention is simple, handling ease, is with a wide range of applications.
4th, antenna of the present invention, every technology used in it are existing mature technology, are its batch machining Provide technical support.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention;
Fig. 2 be the present invention be free of circular metal patch structure diagram;
Fig. 3 is sectional views of the Fig. 2 of the present invention on A-A directions;
Fig. 4 is that the close-up schematic view for being is marked in Fig. 3 of the present invention;
Fig. 5 is the reflection coefficient of port damage curve figure of the present invention;
Fig. 6 is horizontal plane omnidirectional axis ratio characteristic figure of the present invention at corresponding 1.32GHz this frequency point;
Fig. 7 is horizontal plane omnidirectional axis ratio characteristic figure of the present invention at corresponding 2.0GHz this frequency point;
Fig. 8 is horizontal plane omnidirectional axis ratio characteristic figure of the present invention at corresponding 2.77GHz this frequency point;
Fig. 9 is xoy surface radiation directional diagram of the present invention at corresponding this frequency point of 1.32GHz;
Figure 10 is yoz surface radiation directional diagram of the present invention at corresponding this frequency point of 1.32GHz;
Figure 11 is xoy surface radiation directional diagram of the present invention at corresponding this frequency point of 2.0GHz;
Figure 12 is yoz surface radiation directional diagram of the present invention at corresponding this frequency point of 2.0GHz;
Figure 13 is xoy surface radiation directional diagram of the present invention at corresponding this frequency point of 2.77GHz;
Figure 14 is yoz surface radiation directional diagram of the present invention at corresponding this frequency point of 2.77GHz.
Description of reference numerals:1st, dielectric-slab;2nd, metallization VIA;3rd, feeding coaxial lines;4th, circular metal patch;41st, it is micro- Band feed line;42nd, radiating element;43rd, metal ground plate;421st, the first circular arc patch;422nd, the second circular arc patch.
Embodiment
The present invention is described further with specific embodiment below in conjunction with the accompanying drawings:
As shown in Fig. 1 to Fig. 4, a kind of three frequency ranges low section omnidirectional circular-polarized antenna provided by the invention, including dielectric-slab 1, dielectric-slab 1 is disc-shaped structure, and the centre of dielectric-slab 1 is equipped with metallization VIA 2 along the direction of 1 axis of dielectric-slab and feed is same Axis 3, feeding coaxial lines 3 are located at the center of dielectric-slab 1, and metallization VIA 2 is uniformly distributed in around feeding coaxial lines 3, are situated between The upper strata of scutum 1 is equipped with circular metal patch 4, and the center of circle of circular metal patch 4 is located on the extended line of 1 axis of dielectric-slab, circle The edge of shape metal patch 4 is protruding to form three equally distributed microstrip-fed lines 41, between adjacent microstrip-fed line 41 Angle be 120 °;It is connected with radiating element 42 on microstrip-fed line 41, radiating element 42 is arc-shaped structure, radiating element 42 The center of circle overlapped with the center of circle of circular metal patch 4;The lower floor of dielectric-slab 1 is equipped with metal ground plate 43, and metal ground plate 43 is Circular configuration, the projection of the center of circle of metal ground plate 43 on dielectric-slab 1 are overlapped with the center of circle of dielectric-slab 1, circular metal patch 4 Connected with metal ground plate 43 by metallization VIA 2.Between the radius of dielectric-slab 1 is 23 millimeters to 24 millimeters, with respect to dielectric Between constant is 2 to 2.5.
Radiating element 42 includes the first circular arc patch 421 and the second circular arc patch 422, the first circular arc patch 421 and second Circular arc patch 422 is the different arc structure of radius, between the central angle of the first circular arc patch 421 is 95 ° to 105 °, the second circle Between the central angle of arc patch 422 is 80 ° to 90 °.The arc length of first arc plate 421 is 5.39 millimeters, the second arc plate 422 Arc length is 4.53 millimeters, and distance of first arc plate 421 apart from 4 center of circle of circular metal patch is more than 422 distance of the second arc plate The distance in 4 center of circle of circular metal patch.First arc plate 421 and the second arc plate 422 are arranged in parallel.
The center of circle of first circular arc patch 421 and the second circular arc patch 422 overlaps, and the radius of the first circular arc patch 421 is 21 Millimeter is between 22 millimeters, between 422 radius of the second circular arc patch is 17 millimeters to 17.5 millimeters, 421 He of the first circular arc patch Between the width of second circular arc patch 422 is 1.2 millimeters to 1.6 millimeters.
Circular metal patch 4, microstrip-fed line 41, the thickness of radiating element 42 and metal ground plate 43 are 0.035 milli Rice.Between the radius of circular metal patch 4 is 12 millimeters to 16 millimeters.The radius of metal ground plate 43 is 19.2 millimeters to 19.6 Between millimeter.The bending direction of radiating element 42 is distributed along clockwise direction.
Feeding coaxial lines 3 are cylinder metal probe structure, and the radius of the cross section of feeding coaxial lines 3 arrives for 0.5 millimeter Between 0.7 millimeter, between the length of feeding coaxial lines 3 is 3.17 millimeters to 3.18 millimeters, the distributing point of feeding coaxial lines 3 is located at The center of circle of circular metal patch 4.Feeding coaxial lines 3 are also external in the sub-miniature A connector that an impedance is 50 Europe and are connected.
Metallization VIA 2 is radius between 0.3 millimeter to 0.5 millimeter, highly between 3.17 millimeters to 3.18 millimeters Open column shape structure, it is adjacent metal via 2 on 4.5 millimeters of circumference that three metallization VIAs 2, which are evenly distributed on radius, Angle with the circle center line connecting of circular metal patch 4 is 120 °, and metallization VIA 2 runs through dielectric-slab 1.
As shown in figure 5, in the present embodiment, working frequency points that the present invention designs are 1.32GHz, 2.0GHz and 2.77GHz, Wherein GHz is using high-frequency electromagnetic structure simulation software, and emulation, the reflection coefficient of port damage curve of acquisition are modeled to the present invention Figure, from figure 3, it can be seen that three resonant frequencies occurs at 1.32GHz, 2.0GHz and 2.77GHz frequency point respectively in the present invention Point, and the return loss of three resonant frequency points is respectively less than -10dB, surface impedance matching is good.
As shown in Fig. 6 to Fig. 8, the axis ratio characteristic of the present invention in the horizontal plane.The present invention is in three works as seen from the figure The axis ratio for making the horizontal omnidirectional radiation characteristic in band limits is below 3dB, it can be seen that there is the present invention good omnidirectional to justify Polarized radiation characteristic.
As shown in Fig. 9 to Figure 14, three corresponding working frequency range of the invention in two principal planes of xoy and yoz, that is, be exactly 1.32GHz frequency points, the antenna pattern characteristic in 2.0GHz frequency points and 2.77GHz frequency points, from Fig. 9 to Figure 14 in it can be seen that this Vertical plane of the invention in corresponding three working frequency range is " 8 " font antenna pattern of standard, is standard in yoz planes Omnidirectional radiation directional diagram.The present invention is radiated in 1.32GHz for left-hand circular polarization, is right-handed circular polarization in 2.0GHz and 2.77GHz Radiation.
Those of ordinary skill in the art will understand that the embodiments described herein, which is to help reader, understands this hair Bright principle, it should be understood that protection scope of the present invention is not limited to such special statement and embodiment.This area Those of ordinary skill these disclosed technical inspirations can make according to the present invention and various not depart from the other each of essence of the invention The specific deformation of kind and combination, these deform and combine still within the scope of the present invention.

Claims (10)

  1. A kind of 1. three frequency range low section omnidirectional circular-polarized antennas, it is characterised in that:Including dielectric-slab (1), dielectric-slab (1) is disk Shape structure, the centre of dielectric-slab (1) are equipped with metallization VIA (2) and feeding coaxial lines (3) along the direction of dielectric-slab (1) axis, Feeding coaxial lines (3) are located at the center of dielectric-slab (1), and metallization VIA (2) is uniformly distributed in around feeding coaxial lines (3), The upper strata of dielectric-slab (1) is equipped with circular metal patch (4), and the center of circle of circular metal patch (4) is located at prolonging for dielectric-slab (1) axis On long line, the edge of circular metal patch (4) is protruding to form three equally distributed microstrip-fed lines (41), adjacent micro-strip Angle between feed line (41) is 120 °;Radiating element (42) is connected with microstrip-fed line (41), radiating element (42) is Arc-shaped structure, the center of circle of radiating element (42) are overlapped with the center of circle of circular metal patch (4);The lower floor of dielectric-slab (1) is equipped with Metal ground plate (43), metal ground plate (43) are circular configuration, the throwing of the center of circle of metal ground plate (43) on dielectric-slab (1) Shadow is overlapped with the center of circle of dielectric-slab (1), and circular metal patch (4) is connected with metal ground plate (43) by metallization VIA (2).
  2. A kind of 2. three frequency ranges low section omnidirectional circular-polarized antenna according to claim 1, it is characterised in that:The radiation is single First (42) include the first circular arc patch (421) and the second circular arc patch (422), the first circular arc patch (421) and the second circular arc patch Piece (422) is the different arc structure of radius, between the central angle of the first circular arc patch (421) is 95 ° to 105 °, the second circular arc Between the central angle of patch (422) is 80 ° to 90 °.
  3. A kind of 3. three frequency ranges low section omnidirectional circular-polarized antenna according to claim 2, it is characterised in that:First circle The center of circle of arc patch (421) and the second circular arc patch (422) overlaps, and the radius of the first circular arc patch (421) is 21 millimeters to 22 Between millimeter, between second circular arc patch (422) radius is 17 millimeters to 17.5 millimeters, the first circular arc patch (421) and second Between the width of circular arc patch (422) is 1.2 millimeters to 1.6 millimeters.
  4. A kind of 4. three frequency ranges low section omnidirectional circular-polarized antenna according to claim 1, it is characterised in that:The dielectric-slab (1) between radius is 23 millimeters to 24 millimeters, between relative dielectric constant is 2 to 2.5.
  5. A kind of 5. three frequency ranges low section omnidirectional circular-polarized antenna according to claim 1, it is characterised in that:The circular gold The thickness for belonging to patch (4), microstrip-fed line (41), radiating element (42) and metal ground plate (43) is 0.035 millimeter.
  6. A kind of 6. three frequency ranges low section omnidirectional circular-polarized antenna according to claim 5, it is characterised in that:The circular gold Between the radius for belonging to patch (4) is 12 millimeters to 16 millimeters.
  7. A kind of 7. three frequency ranges low section omnidirectional circular-polarized antenna according to claim 1, it is characterised in that:The feed is same Axis (3) is cylinder metal probe structure, the radius of the cross section of feeding coaxial lines (3) for 0.5 millimeter to 0.7 millimeter it Between, between the length of feeding coaxial lines (3) is 3.17 millimeters to 3.18 millimeters, the distributing point of feeding coaxial lines (3) is positioned at circle The center of circle of metal patch (4).
  8. A kind of 8. three frequency ranges low section omnidirectional circular-polarized antenna according to claim 1, it is characterised in that:The metallization Via (2) for radius between 0.3 millimeter to 0.5 millimeter, be highly the open column shape knot between 3.17 millimeters to 3.18 millimeters Structure.
  9. A kind of 9. three frequency ranges low section omnidirectional circular-polarized antenna according to claim 1, it is characterised in that:The metal connects Between the radius on floor (43) is 19.2 millimeters to 19.6 millimeters.
  10. A kind of 10. three frequency ranges low section omnidirectional circular-polarized antenna according to claim 1, it is characterised in that:The radiation The bending direction of unit (42) is distributed along clockwise direction.
CN201711211716.6A 2017-11-28 2017-11-28 A kind of three frequency range low section omnidirectional circular-polarized antennas Pending CN108011188A (en)

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Cited By (9)

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Publication number Priority date Publication date Assignee Title
CN108832290A (en) * 2018-06-22 2018-11-16 电子科技大学 Three arm circular polarized antennas
CN109193178A (en) * 2018-08-31 2019-01-11 天津大学 A kind of engine dynamic stress signal telemetry system
CN109546320A (en) * 2018-11-15 2019-03-29 南京尤圣美电子科技有限公司 A kind of handheld terminal omnidirectional circular-polarized antenna
CN110416716A (en) * 2019-07-11 2019-11-05 南京鲲瑜信息科技有限公司 Low section conformal omnidirectional circular polarized antenna and preparation method thereof
WO2019242130A1 (en) * 2018-06-22 2019-12-26 深圳市大疆创新科技有限公司 Dual-frequency circularly-polarized antenna and communication device
CN112350057A (en) * 2019-08-09 2021-02-09 苹果公司 Electronic device with multi-band antenna
CN113922076A (en) * 2021-10-15 2022-01-11 中国人民解放军国防科技大学 Disc coupling feed miniaturized circularly polarized antenna for collecting microwave energy
CN114171886A (en) * 2021-12-27 2022-03-11 深圳大学 Flexible antenna, manufacturing method thereof and electrocardiogram patch
CN112350057B (en) * 2019-08-09 2024-06-04 苹果公司 Electronic device with multi-band antenna

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CN107154529A (en) * 2017-04-20 2017-09-12 西安电子科技大学 A kind of microminiature low section omnidirectional circular-polarized antenna

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019242130A1 (en) * 2018-06-22 2019-12-26 深圳市大疆创新科技有限公司 Dual-frequency circularly-polarized antenna and communication device
CN108832290B (en) * 2018-06-22 2020-01-17 电子科技大学 Three-arm circularly polarized antenna
CN108832290A (en) * 2018-06-22 2018-11-16 电子科技大学 Three arm circular polarized antennas
CN109193178A (en) * 2018-08-31 2019-01-11 天津大学 A kind of engine dynamic stress signal telemetry system
CN109193178B (en) * 2018-08-31 2023-09-26 天津大学 Engine dynamic stress signal telemetry system
CN109546320B (en) * 2018-11-15 2020-05-05 南京尤圣美电子科技有限公司 Handheld terminal omnidirectional circularly polarized antenna
CN109546320A (en) * 2018-11-15 2019-03-29 南京尤圣美电子科技有限公司 A kind of handheld terminal omnidirectional circular-polarized antenna
CN110416716B (en) * 2019-07-11 2020-03-20 南京鲲瑜信息科技有限公司 Low-profile conformal omnidirectional circularly polarized antenna and manufacturing method thereof
CN110416716A (en) * 2019-07-11 2019-11-05 南京鲲瑜信息科技有限公司 Low section conformal omnidirectional circular polarized antenna and preparation method thereof
CN112350057A (en) * 2019-08-09 2021-02-09 苹果公司 Electronic device with multi-band antenna
CN112350057B (en) * 2019-08-09 2024-06-04 苹果公司 Electronic device with multi-band antenna
CN113922076A (en) * 2021-10-15 2022-01-11 中国人民解放军国防科技大学 Disc coupling feed miniaturized circularly polarized antenna for collecting microwave energy
CN113922076B (en) * 2021-10-15 2023-07-21 中国人民解放军国防科技大学 Disc coupling feed miniaturized circularly polarized antenna for microwave energy collection
CN114171886A (en) * 2021-12-27 2022-03-11 深圳大学 Flexible antenna, manufacturing method thereof and electrocardiogram patch

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