WO2021021017A1 - Antenne dipôle, réseau d'antennes, et procédé de fabrication de l'antenne dipôle et du réseau d'antennes - Google Patents

Antenne dipôle, réseau d'antennes, et procédé de fabrication de l'antenne dipôle et du réseau d'antennes Download PDF

Info

Publication number
WO2021021017A1
WO2021021017A1 PCT/SG2020/050422 SG2020050422W WO2021021017A1 WO 2021021017 A1 WO2021021017 A1 WO 2021021017A1 SG 2020050422 W SG2020050422 W SG 2020050422W WO 2021021017 A1 WO2021021017 A1 WO 2021021017A1
Authority
WO
WIPO (PCT)
Prior art keywords
dipole
antenna
antenna array
electrically conductive
dipole antenna
Prior art date
Application number
PCT/SG2020/050422
Other languages
English (en)
Inventor
Yongxin Guo
Yujian Li
Original Assignee
National University Of Singapore
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by National University Of Singapore filed Critical National University Of Singapore
Publication of WO2021021017A1 publication Critical patent/WO2021021017A1/fr

Links

Classifications

    • 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
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/061—Two dimensional planar arrays
    • H01Q21/062—Two dimensional planar arrays using dipole aerials

Definitions

  • the present disclosure relates to an antenna and an antenna array, and more particularly but not exclusively, to an antenna and an antenna array for millimetre-wave wireless communication.
  • Antennas with high gain and wideband features are in demand. This is particularly so in millimetre wave wireless applications, such as point to point wireless 5G applications, because millimetre waves suffer high atmospheric propagation loss and have limited transmission power.
  • millimetre wave wireless applications such as point to point wireless 5G applications
  • millimetre waves suffer high atmospheric propagation loss and have limited transmission power.
  • the realization of a large-size antenna array with a wide operating band and high gain performance simultaneously is a challenging task in millimetre wave antenna design.
  • the maximum achievable gain of the array is mainly restricted by the insertion loss of the feed network.
  • a shorter length of the transmitting path with lower loss can be obtained by a series feed network, the corresponding narrow bandwidth is not acceptable for wideband millimetre wave applications.
  • parallel feed networks comprising various transmission line structures have been widely applied to millimetre wave antenna arrays.
  • a microstrip line with a substrate integrated waveguide were found to be more suitable for feeding small arrays due to the existence of dielectric loss in the substrate.
  • a low loss substrate such as Roger 5880 printed circuit board (PCB) laminates were employed, the radiation efficiency for a 16 x 16 antenna array is no higher than 50% which is too low.
  • a further existing work employs an air-filled waveguide feed network for its low attenuation in the millimetre wave bands to achieve better radiation efficiency and gain performance.
  • waveguide feed network has complicated three-dimensional (3D) structures which are hard to realize precisely in the millimetre wave band through conventional mechanical fabrication technology.
  • 3D three-dimensional
  • Diffusion bonding techniques have been introduced in the fabrication of millimetre wave antenna arrays to overcome such issues.
  • the fabrication process of bonding a series of thin metallic laminates is complex, which requires the use of radiating elements that are easy to realize.
  • applied slot radiating elements are commonly used but such designs have a narrow band feature which results in the antenna array having relatively narrow bandwidths of less than 15%.
  • air-filled ridges and groove gap waveguides were applied to construct the feed networks of millimetre-wave slot antenna arrays due to their ability to prevent undesirable power leakage since they do not require electrical contact between metallic layers.
  • the fractional bandwidth of the resulting antenna array is still no more than 20%.
  • a dipole antenna including a ground plane having a feeding aperture and two magneto-electric dipole elements electrically connected to the ground plane.
  • Each of the magneto electric dipole elements includes an electrically conductive patch and an electrically conductive wall element arranged to support and space the electrically conductive patch from the ground plane.
  • the feeding aperture is positioned between the two magneto-electric dipole elements and configured to excite the two magneto-electric dipole elements.
  • the dipole antenna advantageously exhibits characteristics of high gain, high radiation efficiency and wideband capabilities in the millimetre waveband making it suitable for use in millimetre wave applications.
  • a length of the feeding aperture may be substantially longer than a width of the feeding aperture.
  • a length of the feeding aperture may be more than half an operating wavelength of the antenna.
  • the electrically conductive patch may have four edges; and in one example, the four edges may be of equal length.
  • the electrically conductive wall element may extend from at least one of the edges of the electrically conductive patch.
  • the electrically conductive wall element may be perpendicular to the electrically conductive patch.
  • the electrically conductive wall element may include a first side element and a second side element.
  • the first and second side elements may be coupled to two corresponding edges of the electrically conductive patch.
  • the first side element may be coupled to the second side element to form an L-shaped configuration.
  • an antenna array including a plurality of dipole antennas according to the first aspect.
  • the antenna array advantageously exhibits improved characteristics of higher gain, higher radiation efficiency and greater wideband capabilities compared to the dipole antenna from the first aspect making it a useful alternative to the dipole antenna.
  • the antenna array may further include a parallel feed network coupled to the corresponding feeding apertures of the plurality of antennas and arranged to guide an excitation wave to excite the respective magneto-electric dipole elements.
  • the parallel feed network may include an input port for generating the excitation wave, an array member comprising an air-filled cavity in fluid communication to each of the feeding apertures of the plurality of dipole antennas, and a waveguide arranged to guide the excitation wave to the air- filled cavity to distribute the excitation wave to each of the feeding apertures of the plurality of dipole antennas.
  • the input port may be connected to a tapered portion of the waveguide.
  • the waveguide may include an opening in a middle portion of the air- filled cavity, thereby enabling an even distribution of the excitation wave to the feeding apertures.
  • the antenna array may further include 64 dipole antennas, and may have a gain of 28.5dBi.
  • a method of manufacturing the dipole antenna according to the first aspect, or the antenna array according to the second aspect includes obtaining an electronic file representing a configuration of the dipole antenna or the antenna array, including a surface configuration or a volume configuration of the dipole antenna or the antenna array, and controlling an additive manufacturing apparatus to manufacture, over one or more additive manufacturing steps, the dipole antenna or the antenna array according to the configuration of the product represented in the electronic file.
  • the method includes obtaining an electronic file comprising computer executable instructions that, when executed by a processor, cause the processor to control an additive manufacturing apparatus to manufacture the dipole antenna or the antenna array, and controlling the additive manufacturing apparatus to manufacture, over one or more additive manufacturing steps, the dipole antenna or the antenna array according to the computer executable instructions.
  • Figure 1 is an exploded view of a first antenna array according to a first embodiment
  • Figure 2A is an enlarged view of a portion of the radiating structure of the first antenna array illustrated in Figure 1 ;
  • Figure 2B is a top view of the portion of the radiating structure illustrated in Figure 2A;
  • Figure 3 is a flowchart for a method of manufacturing a dipole antenna formed from the portion of the radiating structure illustrated in Figure 2A; and Figure 4 is a frequency response graph for Sn and gain of the dipole antenna described in association with Figure 3;
  • Figure 5 is a polar plot of a radiation pattern of the dipole antenna described in association with Figure 3;
  • Figure 6A is a perspective view of a network of air-filled waveguides for a second antenna array comprising 16 first antenna arrays illustrated in Figure 1 according to a second embodiment;
  • Figure 6B is a top view of the network of air-filled waveguides illustrated in Figure 6A;
  • Figure 7 is a frequency response graph for Sn and gain of the second antenna array described in association with Figure 6A;
  • Figure 8 is a rectangular plot of a radiation pattern of the second antenna array described in association with Figure 6A;
  • Figure 9 is a perspective view of an alternative portion of the radiating structure illustrated in Figure 2A according to a third embodiment.
  • FIG. 1 illustrates a first antenna array 100 according to a first embodiment with its various components shown spaced apart for illustrative purposes.
  • the first antenna array 100 includes a radiating structure 1 10 and a parallel feed network 150 coupled to the radiating structure 1 10.
  • the parallel feed network 150 includes an input port for generating an excitation wave, although this is not depicted in Figure 1.
  • the parallel feed network 150 is arranged to feed the excitation wave generated by the input port to the radiating structure 110.
  • the radiating structure 1 10 includes a ground plane 120 having four feeding apertures 140, and sixteen magneto-electric (ME) dipole elements 130 that are electrically connected to the ground plane 120.
  • the four feeding apertures 140 are arranged to receive the excitation wave from the parallel feed network 150 and to excite the ME dipole elements 130.
  • Each of the ME dipole elements emit electromagnetic radiation for wireless communication when excited by the excitation wave.
  • the sixteen ME dipole elements 130 are arranged on the ground plane 120 in a 4x4 configuration such that there are four rows of four ME dipole elements.
  • the sixteen ME dipole elements 130 are further formed into four groups of four ME dipole elements 130 with each group being referred to as a subunit 102.
  • Each subunit 102 has four respective ME dipole elements 130 arranged in a 2x2 configuration.
  • the four feeding apertures 140 are positioned in the ground plane with each feeding aperture 140 configured to feed the excitation wave to the corresponding four ME dipole elements 130 in each subunit 102.
  • Each feeding aperture 140 is rectangular shaped with a length of the feeding aperture 140 longer than a width of the feeding aperture 140. In this embodiment, the length of each feeding aperture 140 is more than half an operating wavelength of the antenna array.
  • two of the ME dipole elements 130 are positioned along the length on both sides of the feeding aperture 140. In other words, each of the feeding apertures 130 is surrounded by four ME dipole elements 130, and arranged to receive the excitation wave from the parallel feed network 150 and to excite their respective four ME dipole elements 130.
  • the parallel feed network 150 includes a waveguide structure 160, and an array member 170 having inner walls 171 defining an air-filled cavity 172. The array member 170 is sandwiched between the radiating structure 1 10 and the waveguide structure 160.
  • the inner walls 171 include a first inner wall 173, a second inner wall 174, a third inner wall 175 and a fourth inner wall 176.
  • the inner walls 171 are arranged to form a rectangle with the first inner wall 173 being opposite the second inner wall 174, and the third inner wall 175 being adjacent to the first and second inner walls 173,174, and opposite the fourth inner wall 176.
  • the first inner wall 173 includes a stepped indentation 177 that runs along most of the first inner wall’s length.
  • the second inner wall 174 has a similar configuration as the first inner wall 173.
  • the third inner wall 175 includes a protrusion 178 having two sloped edges 179 that start at opposing ends of the third inner wall 175, and join at a midpoint of the third inner wall.
  • the fourth inner wall has a similar configuration as the third inner wall.
  • the inner walls 171 improve impedance matching (and reduce reflection coefficient) of the first antenna array 100. In this way, power may be transferred to the ME dipole elements 130
  • the waveguide structure 160 includes an open-ended waveguide 162 that is positioned at a center of the waveguide structure 160 and is perpendicular to the ground plane 120.
  • the open-ended waveguide 162 includes a proximal end 164 that is closer to the array member 170, and a distal end 166 that is further away from the array member 170 and connected to the input port (not depicted in Figure 1 ).
  • the proximal end 164 includes an opening 164a that is in fluid communication with the air-filled cavity 172 of the array member 170. Furthermore, the opening 164a of the open-ended waveguide 162 is aligned to a middle portion of the air-filled cavity 172.
  • the air-filed cavity 172 is also in fluid communication with the four feeding apertures 140 of the radiating structure 1 10. Effectively, the open-ended waveguide 162, the air-filled cavity 172 and the four feeding apertures 140 form a channel to deliver the excitation wave from the input port to the ME dipole elements 130.
  • the excitation wave is generated by the input port and transmitted to the distal end 166 of the open-ended waveguide 162.
  • the excitation wave is guided through the open-ended waveguide 162 from the distal end 166 to the proximal end 164 and into the air-filled cavity 172 of the array member 170.
  • the air-filled cavity 172 then distributes the excitation wave to the four feeding apertures 140 of the radiating structure 1 10.
  • electromagnetic power of the excitation wave could be divided equally among the four feeding apertures 140 and fed to their respective ME dipole elements 130 in their respective subunits 102 simultaneously. Due to the even distribution of the excitation wave’s electromagnetic power, all sixteen ME dipole elements 130 are equally excited by the excitation wave, thus resulting in the sixteen ME dipole elements 130 emitting electromagnetic radiation that is consistent across the first antenna array 100.
  • the description of the first embodiment above is not meant to be limitative.
  • the open-ended waveguide 162 it is not essential for the open-ended waveguide 162 to be positioned at the center of the waveguide structure 160 as long as the opening 164a is in fluid communication with the air-filled cavity 172.
  • the excitation wave it is also possible for the excitation wave to be fed to the radiating structure 1 10 via a series feed network, rather than the parallel feed network 150.
  • the first antenna array 100 may include any number of subunits 102.
  • the first antenna array 100 may include sixty-four ME dipole elements 130 (i.e. sixteen subunits 102 arranged in a 4x4 configuration).
  • the subunit 102 is described in more detail in the following section with reference to Figures 2A and 2B.
  • FIG 2A illustrates an enlarged view of a portion 1 10a of the radiating structure 1 10 having one subunit 102, which is generally called a dipole antenna 200.
  • the dipole antenna 200 includes the ground plane 120 having the feeding aperture 140, and a first ME dipole element 130a, a second ME dipole element 130b, a third ME dipole element 130c, and a fourth ME dipole element 130d.
  • Figure 2B is a top view of the dipole antenna 200 of Figure 2A.
  • the first ME dipole element 130a, and the second ME dipole element 130b are positioned along the length 142 of the feeding aperture 140 and on one side 140a of the feeding aperture 140, while the third ME dipole element 130c, and the fourth ME dipole element 130d are also positioned along the length 142 of the feeding aperture 140 but on an opposing side 140b of the feeding aperture 140.
  • the feeding aperture 140 is thus configured to feed the excitation wave to the first ME dipole element 130a, the second ME dipole element 130b, the third ME dipole element 130c, and the fourth ME dipole element 130d simultaneously to excite them into emitting electromagnetic radiation for wireless communication.
  • the first ME dipole element 130a includes an electrically conductive patch 132, and an electrically conductive wall element 134 arranged to support and space the electrically conductive patch 132 from the ground plane 120.
  • One end of the electrically conductive wall element 134 is connected to the ground plane 120 while an opposing end of the electrically conductive wall element 134 is connected to the electrically conductive patch 132.
  • the electrically conductive wall element 134 is perpendicular to the electrically conductive patch 130 such that a space is formed between the electrically conductive patch 132 and the ground plane 120.
  • the electrically conductive patch 132 has four edges 132a,132b,132c,132d that are of equal length.
  • the electrically conductive wall element 134 includes a first side element 134a and a second side element 1 134b that are coupled to two corresponding edges 132a, 132b of the electrically conductive patch 130.
  • the first side element 134a is facing an opposing side element (hidden from view in Figure 2A) of the ME dipole element 130c
  • the second side element 134b is facing an opposing side element (hidden from view in Figure 2A) of the second ME dipole element 130b.
  • the first side element 134a extends from the edge 132a towards the ground plane 120 while the second side element 134b extends from the edge 132b towards the ground plane 120. Furthermore, the first side element 134a is adjacent to the second side element 134b, and the first side element 134a is coupled to the second side element 134b to form an L-shaped configuration.
  • the second ME dipole element 130b, the third ME dipole element 130c, and the fourth ME dipole element 130d have a similar configuration as the first ME dipole element 130a, and are therefore not described in further details.
  • the description of the subunit 102 of the radiating structure 110 should not be construed to be limitative as well.
  • the first side element 134a is described as being adjacent to the second side element 134b, and the first and second side elements 134a, 134b are described as forming an L-shaped configuration. However, this is not necessary.
  • the first and second side elements 134a, 134b may extend from any of the edges 132a,132b,132c,132d.
  • the first side element 134a may extend from the edge 132a while the second side element 134b may instead extend from the edge 132c such that the first side element 134a is opposite the second side element 134b.
  • first and second side elements 134a, 134b may extend from an underside of the electrically conductive patch 132 towards the ground plane 120, instead of extending from the two corresponding edges 132a, 132b of the electrically conductive patch 132 towards the ground plane 102.
  • the electrically conductive wall element 1 14 may include the first side element 134a only.
  • the first ME dipole element 130a has, the second ME dipole element 130b, the third ME dipole element 130c, and the fourth ME dipole element 130d have a similar configuration to the first ME dipole element 130a to maintain some degree of antenna symmetry.
  • the first antenna array 100 may include exactly one subunit 102, which may be referred to as a dipole antenna 200.
  • the dipole antenna 110a includes the portion 1 10a of Figure 2A and a parallel feed network coupled to the portion 1 10a.
  • the parallel feed network includes the input port for generating the excitation wave and the waveguide structure 160 having the open-ended waveguide for guiding the excitation wave to the feeding aperture 1 140.
  • the array member 170 is not necessary in this embodiment since there is only one feeding aperture 140, and thus the excitation wave need not be divided.
  • FIG. 3 An exemplary method 300 of manufacturing the dipole antenna 200 using 3D printing techniques is illustrated in Figure 3. Specifically, the method 300 employs metal laser sintering technology to manufacture the dipole antenna.
  • a 3D model of the dipole antenna 200 is obtained using a 3D modelling software.
  • the 3D model is in the form of an electronic file representing a surface configuration or a volume configuration of the dipole antenna.
  • computer-executable instructions for 3D printing the dipole antenna are obtained by slicing the 3D model using a 3D slicing software.
  • the computer-executable instructions are fed to a processor to control a 3D printer and includes the horizontal and vertical positions of a laser of the 3D printer, and 3D printer settings such as temperature, layer height, and printing speed.
  • the computer-executable instructions are fed to the 3D printer to control the 3D printer to manufacture, over one or more additive manufacturing steps, the dipole antenna according to the computer executable instructions.
  • obtaining the 3D model of the dipole antenna may be done by obtaining the 3D model directly from a 3D model repository, instead of using the 3D modelling software.
  • the computer executable instructions may be obtained directly from another repository, in which case, step 310 is not necessary.
  • step 820 may be omitted, and step 830 may simply include controlling the 3D printer to manufacture, over one or more additive manufacturing steps, the dipole antenna according to the 3D model.
  • the method 300 is also suitable for manufacturing the first antenna array 100, as well as any other described embodiments. Furthermore, the method 300 may be performed by any suitable additive manufacturing apparatus, other than a 3D printer, or using other suitable 3D printing technologies, other than metal laser sintering.
  • the dipole antenna 200, the first antenna array 100, and any other described embodiments may also be fabricated by conventional mechanical fabrication technology.
  • Figure 4 is a frequency response graph 400 of the dipole antenna 200. Specifically, Figure 4 shows the return loss (
  • XFIF extremely high frequency
  • FIG. 5 is a polar plot 500 of a radiation pattern 510 of the dipole antenna 200.
  • Figure 5 shows a co-polarization in E-plane 520 and a co polarization in FI-plane 530 of the radiation pattern 510.
  • the radiation pattern 510 is symmetrical for the co-polarization in E-plane 520, and the co-polarization in FI-plane 530.
  • both the co-polarization in E-plane 520 and the co-polarization in FI- plane 530 has a Front to Back Ratio (F/B ratio) of more than 22dB which enables the dipole antenna 200 to produce the radiation pattern 510 with high directivity.
  • the cross polarization level (not shown in Figure 5) of the dipole antenna 200 is less than -30dB which ensures the dipole antenna 200 experiences low interference between the co-polarization and the cross polarization in respective E-planes and H-planes of the radiation pattern 510.
  • the dipole antenna 200 is able to achieve a wide bandwidth of more than 40%, a maximum gain of 10.5dBi, while exhibiting a stable radiation pattern 510 with low cross polarization levels.
  • the second antenna array 600 includes sixteen first antenna arrays 100 arranged in a 4x4 configuration.
  • the parallel feed network of the second antenna array 600 further includes a network of air-filled waveguides 605 which is illustrated in Figures 6A and 6B.
  • the network of air-filled waveguides 605 is shown in Figure 6A to be coupled to the input port 610, and is configured to guide the excitation wave from the input port 610 to the distal ends 166 of the respective open-ended waveguides 162
  • the distal ends 2166 indicate where the open-ended waveguides 162 (and the remaining components of the sixteen first antenna arrays 100) are positioned in the second antenna array 600.
  • the network of air-filled waveguides 605 include shorted ends 620 which are electrically connected to the corresponding distal ends 166 of the open-ended waveguides 162 to transmit the excitation wave to the open-ended waveguides 162.
  • the network of air-filled waveguides 605 further includes a short section of a tapered waveguide (tapered portion 630) which is coupled to the input port 610 so that a standard waveguide can be used for feeding the second antenna array 600.
  • a tapered waveguide tapered portion 630
  • Figure 7 is a frequency response graph 700 of the second antenna array 600. Specifically, Figure 7 shows the return loss (
  • the second antenna array 600 is able to achieve a higher gain than the dipole antenna 200.
  • the second antenna array 600 also has a higher radiation efficiency than the dipole antenna 200 while still maintaining a positive gain in the XFIF range. Importantly, a fractional (impedance) bandwidth of 33.5% is still achievable with the second antenna array 600 operating at a return loss (
  • the second antenna array 600 achieves greater wideband capabilities than the dipole antenna 200 while maintaining similarly high radiation efficiency.
  • the second antenna array 600 exhibits characteristics of higher gain, higher radiation efficiency and greater wideband capabilities in the millimetre waveband than the dipole antenna 200, making it a useful alternative for millimeter wave applications.
  • Figure 8 is a rectangular plot 800 of a radiation pattern 810 of the second antenna array 600.
  • Figure 8 shows the co-polarization and cross polarization in respective E-planes 820,840 and in respective H-planes 830,850 of the radiation pattern 710.
  • the radiation pattern 810 is symmetrical for both the co-polarizations and the cross-polarizations in respective E-planes 820,840 and respective H-planes 830,850.
  • the second antenna array 600 has a relatively high directivity considering that the first side lobes 820a, 820b of the co-polarization in E-plane 820 (as well as the co-polarization in H-plane 830) has a magnitude of -14dB.
  • the cross polarization level of the second antenna array 600 is less than -45dB which ensures the second antenna array 600 experiences low interference between the co-polarization and the cross-polarization in respective E-planes 820,840 and respective H-planes 830,850 of the second antenna array 600.
  • the second antenna array is able to achieve a wide bandwidth of 33.5%, a maximum gain of 28.5dBi, while exhibiting a stable radiation pattern 810 with low cross polarization levels.
  • the described embodiments thus propose multiple configurations for the dipole antenna 200, the first antenna array 100, and second antenna array 600 that are capable of achieving high gain, high radiation efficiency and wideband capabilities for wireless communication, particularly in the millimetre waveband i.e. the XHF band.
  • the described embodiments are not limited to millimetre wave applications.
  • the dipole antenna 200, the first antenna array 100, and second antenna array 600 may also be suitable to operate in other frequency bands such as the Ultra High Frequency band, with modifications to the designs that will be apparent to the skilled person, if necessary.
  • the present disclosure has been described with reference to specific exemplary embodiments, various modifications may be made to the embodiments without departing from the scope of the invention as laid out in the claims.
  • the electrically conductive patch 132 is described as having four edges of equal length (i.e. a square patch), this is not necessary. For instance, it is possible for the electrically conductive patch 132 to be a rectangular patch. Furthermore, it is also possible for there to be only one ME dipole element 130 along each of the two lengths 142 of the feeding aperture 140. This is illustrated in Figure 9 which shows an enlarged view of a portion 1 110a of the radiating structure 1 10 having one subunit 102, referred to herein as a second dipole antenna 1200.
  • the second dipole antenna 1200 has a similar structure as the first dipole antenna 200 and thus, like components in the third embodiment uses the same reference numerals with an addition of 1000.
  • the second dipole antenna 1200 includes a ground plane 1 120 having a feeding aperture 1 140, and an alternative first ME dipole element 1 130a, and an alternative second ME dipole element 1 130b that are electrically connected to the ground plane 1 120.
  • the feeding aperture 1140 is positioned between the first alternative ME dipole element 1 130a, and the second alternative ME dipole element 1 130b.
  • the first alternative ME dipole element 1 130a includes an electrically conductive patch 1 132 that is rectangular shaped, and an electrically conductive wall element 1 134 having one side element 1 134a that is arranged to support and space the electrically conductive patch 1 132 from the ground plane 1 120.
  • the second alternative ME dipole element 1 130b has a similar configuration as the first alternative ME dipole element 1 130a, and is therefore not described in further details.

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Details Of Aerials (AREA)

Abstract

L'invention concerne une antenne dipôle (200, 1200). Dans un mode de réalisation décrit, l'antenne dipôle (200, 1200) comprend un plan de masse (120, 1120) comportant une ouverture d'alimentation (140, 1140), et deux éléments dipôles magnétoélectriques (130a, 130b, 130c, 130d, 1130a, 1130b) connectés électriquement au plan de masse (120, 1120). Chacun des éléments dipôles magnétoélectriques (130a, 130b, 130c, 130d, 1130a, 1130b) comprend une plaque électroconductrice (132, 1132) et un élément de paroi électroconducteur (134, 1134) conçu pour supporter la plaque électroconductrice (132, 1132) et l'écarter du plan de masse (120, 1120). L'ouverture d'alimentation (140, 1140) est positionnée entre les deux éléments dipôles magnétoélectriques (130a, 130b, 130c, 130d, 1130a, 1130b) et configurée pour exciter les deux éléments dipôles magnétoélectriques (130a, 130b, 130c, 130d, 1130a, 1130b). L'invention concerne également un réseau d'antennes (100, 600) et un procédé de fabrication de l'antenne dipôle (200, 1200) et du réseau d'antennes (100, 600).
PCT/SG2020/050422 2019-08-01 2020-07-21 Antenne dipôle, réseau d'antennes, et procédé de fabrication de l'antenne dipôle et du réseau d'antennes WO2021021017A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SG10201907098V 2019-08-01
SG10201907098V 2019-08-01

Publications (1)

Publication Number Publication Date
WO2021021017A1 true WO2021021017A1 (fr) 2021-02-04

Family

ID=74230864

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SG2020/050422 WO2021021017A1 (fr) 2019-08-01 2020-07-21 Antenne dipôle, réseau d'antennes, et procédé de fabrication de l'antenne dipôle et du réseau d'antennes

Country Status (1)

Country Link
WO (1) WO2021021017A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220173528A1 (en) * 2019-10-31 2022-06-02 Guangdong Oppo Mobile Telecommunications Corp.,Ltd Antenna module and electronic device
CN114725667A (zh) * 2022-04-01 2022-07-08 电子科技大学 一种应用于自动驾驶雷达的磁电偶极子天线

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108933327A (zh) * 2018-06-08 2018-12-04 西安电子科技大学 一种改进的宽带微带天线单元

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108933327A (zh) * 2018-06-08 2018-12-04 西安电子科技大学 一种改进的宽带微带天线单元

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
LI Y. ET AL.: "A 60-GHz Wideband Circularly Polarized Aperture-Coupled Magneto-Electric Dipole Antenna Array", IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, vol. 64, no. 4, 5 April 2016 (2016-04-05), pages 1325 - 1333, XP055551971, [retrieved on 20201102], DOI: 10.1109/TAP.2016.2537390 *
NG K.B. ET AL.: "Bandwidth Enhancement of Planar Slot Antenna Using Complementary Source Technique for Millimeter-Wave Applications", IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, vol. 62, no. 9, 13 June 2014 (2014-06-13), pages 4452 - 4458, XP011558017, [retrieved on 20201102], DOI: 10.1109/TAP.2014.2330867 *
SO KWOK KAN, LUK KWAI, CHAN CHI, CHAN KA: "3D Printed High Gain Complementary Dipole/Slot Antenna Array", APPLIED SCIENCES, vol. 2018, no. 8, 20 August 2018 (2018-08-20), pages 1 - 7, XP055793063, Retrieved from the Internet <URL:file:///C:/Users/MB92017/Downloads/applsci-08-01410.pdf> [retrieved on 20201102], DOI: 10.3390/APP8081410 *
YANG XUJUN, GE LEI, ZHANG DENGGUO, SIM CHOW-YEN-DESMOND: "Magnetoelectric Dipole Antenna with Dual Polarization and High Isolation", HINDAWI WIRELESS COMMUNICATIONS AND MOBILE COMPUTING, vol. 2018, 11 April 2018 (2018-04-11), pages 1 - 7, XP055793061, Retrieved from the Internet <URL:https://downloads.hindawi.com/journals/wcmc/2018/4765425.pdf> [retrieved on 20201102], DOI: 10.1155/2018/4765425 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220173528A1 (en) * 2019-10-31 2022-06-02 Guangdong Oppo Mobile Telecommunications Corp.,Ltd Antenna module and electronic device
US11962092B2 (en) * 2019-10-31 2024-04-16 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Antenna module and electronic device
CN114725667A (zh) * 2022-04-01 2022-07-08 电子科技大学 一种应用于自动驾驶雷达的磁电偶极子天线
CN114725667B (zh) * 2022-04-01 2023-06-27 电子科技大学 一种应用于自动驾驶雷达的磁电偶极子天线

Similar Documents

Publication Publication Date Title
Vosoogh et al. Wideband and high-gain corporate-fed gap waveguide slot array antenna with ETSI class II radiation pattern in $ V $-band
EP3266066B1 (fr) Élément d&#39;antenne à bande ultra-large à bande passante décadique à faible polarisation croisée
CN111937237B (zh) 单极化和双极化双谐振背腔式缝隙天线(d-cbsa)元件
US6317094B1 (en) Feed structures for tapered slot antennas
Zhang et al. An E-band partially corporate feed uniform slot array with laminated quasi double-layer waveguide and virtual PMC terminations
WO2019213878A1 (fr) Unité de réseau d&#39;antennes à ondes millimétriques, antenne réseau et produit de communication
JP2020108147A (ja) アンテナ装置、レーダーシステム、および通信システム
US10530060B2 (en) Single-layered end-fire circularly polarized substrate integrated waveguide horn antenna
Cao et al. W-band high-gain circularly polarized aperture-coupled magneto-electric dipole antenna array with gap waveguide feed network
EP1148583A1 (fr) Antenne réseau plane
KR20100109151A (ko) 위성통신용 원형 편파 안테나
US11515638B2 (en) Square aperture frequency selective surfaces in Fabry-Perot cavity antenna systems
US20220407231A1 (en) Wideband electromagnetically coupled microstrip patch antenna for 60 ghz millimeter wave phased array
KR100531218B1 (ko) 유전체 기판의 양면에 형성된 슬롯을 구비하는 슬롯 안테나
CN111416207A (zh) 加载ebg表面的毫米波siw喇叭天线
Vosoogh et al. E-band 3-D metal printed wideband planar horn array antenna
CN112803151A (zh) 磁电偶极子天线
KR101784501B1 (ko) 고효율 알에프 전송선로 구조 및 상기 구조를 이용한 이중 직교 편파를 갖는 송수신 배열 안테나 장치
WO2021021017A1 (fr) Antenne dipôle, réseau d&#39;antennes, et procédé de fabrication de l&#39;antenne dipôle et du réseau d&#39;antennes
JP2011239258A (ja) 導波管・ｍｓｌ変換器及び平面アンテナ
CN107196069B (zh) 紧凑型基片集成波导背腔缝隙天线
US20210313710A1 (en) Broadband antenna having polarization dependent output
JP5429459B2 (ja) ミリ波アンテナ
CN115764269A (zh) 全息天线、通信设备及全息天线的制备方法
Amjadi et al. A compact, broadband, two-port slot antenna system for full-duplex applications

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20847811

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20847811

Country of ref document: EP

Kind code of ref document: A1