WO2020151551A1 - Circularly polarized substrate-integrated waveguide antenna, array antenna and antenna system - Google Patents

Circularly polarized substrate-integrated waveguide antenna, array antenna and antenna system Download PDF

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Publication number
WO2020151551A1
WO2020151551A1 PCT/CN2020/072283 CN2020072283W WO2020151551A1 WO 2020151551 A1 WO2020151551 A1 WO 2020151551A1 CN 2020072283 W CN2020072283 W CN 2020072283W WO 2020151551 A1 WO2020151551 A1 WO 2020151551A1
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integrated waveguide
circularly polarized
metal layer
array
antenna
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PCT/CN2020/072283
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French (fr)
Chinese (zh)
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苏道一
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广东曼克维通信科技有限公司
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Publication of WO2020151551A1 publication Critical patent/WO2020151551A1/en

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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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction

Definitions

  • the present invention relates to the field of antenna technology, in particular to a substrate integrated waveguide circularly polarized antenna, an array antenna and an antenna system.
  • circularly polarized antennas can be used more and more widely because they can solve the Faraday rotation effect in the wireless channel, receive arbitrary polarized incoming waves, and suppress the interference of rain and fog reflection clutter.
  • microstrip circular polarization antennas usually have two implementation modes:
  • One is to perturb the field distribution of the antenna at a specific position of the antenna, so as to excite two orthogonal modes with equal amplitude and 90° phase difference;
  • the circular polarization of the antenna is realized through the cross slot on the microstrip antenna patch.
  • SIW Substrate Integrated Waveguide
  • the present invention provides a substrate-integrated waveguide circular polarization antenna, an array antenna and an antenna system, which can form a wider axial ratio bandwidth and achieve a low profile.
  • the present invention provides a substrate-integrated waveguide circularly polarized antenna, comprising a first metal layer, a dielectric layer, and a second metal layer arranged in sequence, wherein:
  • the first metal layer has a first array of through holes and three rectangular slits etched out; the rectangular slits are used to adjust circular polarization radiation parameters;
  • the dielectric layer is made of a dielectric material and has a second through hole array and a first feed through hole that match the first through hole array;
  • the second metal layer is connected to the ground terminal, and has a third through hole array that is the same as the first through hole array and a second power feeding through hole that matches the first power feeding through hole;
  • the first through hole array, the second through hole array, and the third through hole array are used to form a confinement cavity for confining electromagnetic waves together with the first metal layer and the second metal layer.
  • the three etched rectangular slits are respectively a first rectangular slit, a second rectangular slit, and a third rectangular slit, wherein,
  • the first rectangular gap is located on the first side of the first metal layer
  • the second rectangular gap is located on a second side of the first metal layer connected to the first side;
  • the third rectangular gap is located at the junction of the first side portion and the second side portion.
  • the first metal layer, the dielectric layer, and the second metal layer are sequentially matched and arranged, and the first metal layer, the dielectric layer, and the second metal layer
  • the shapes of are all right-angled triangles; wherein the two right-angled sides of the first metal layer are the first side and the second side respectively.
  • the lengths of the sides of the first metal layer, the dielectric layer, and the second metal layer all range from 20 to 30 mm;
  • the thickness of the dielectric layer ranges from 1.4 to 1.7 mm, the dielectric constant of the dielectric layer ranges from 3.5 to 4.5, and the dielectric loss angle ranges from 0.002 to 0.02.
  • the inner walls of the first feed through hole and the second feed through hole are both plated with a metal material.
  • the present invention provides a substrate-integrated waveguide circularly polarized array antenna, including a feed network structure layer and four substrate-integrated waveguide circularly polarized antennas as described in the first aspect, wherein:
  • the feed network structure layer is arranged on one side of the second metal layer in the array antenna structure layer.
  • each substrate integrated waveguide circularly polarized antenna has the same triangle shape, and the four substrate integrated waveguide circularly polarized antennas are arranged in Square array.
  • the feed network structure layer includes a first Wilkinson power divider, a second Wilkinson power divider, and a third Wilkinson power divider, wherein:
  • the first Wilkinson power splitter is connected to two of the four substrate integrated waveguide circularly polarized antennas, and the second Wilkinson power splitter is connected to the four substrate integrated waveguide circular polarization antennas. The other two of the polarized antennas are connected; the third Wilkinson power divider is connected to the first Wilkinson power divider and the second Wilkinson power divider.
  • the substrate-integrated waveguide circularly polarized antenna further includes a metalized probe for transmitting antenna signals, wherein:
  • the metalized probe is connected to the array antenna structure layer and the feed network structure layer, and the metalized probe is disposed in the first feed through hole and the second feed through In the feed cavity formed by the combination of holes.
  • the present invention provides an antenna system, including a coaxial cable, an electronic device, and the substrate-integrated waveguide circular polarization array antenna of the second aspect, wherein:
  • the substrate integrated waveguide circular polarization array antenna is connected to the electronic device through the coaxial cable;
  • the substrate integrated waveguide circularly polarized array antenna receives a target signal, and transmits the target signal to the electronic device through the coaxial cable;
  • the electronic device receives the target signal through the coaxial cable, and processes the target signal.
  • a miniaturized substrate integrated waveguide circularly polarized antenna and a substrate integrated waveguide circularly polarized array antenna can be manufactured, and three powers can be used.
  • the structure layer of the feed network composed of the Elkinson power divider consists of four substrate integrated waveguide circularly polarized antennas, and the adjacent output ports are sequentially delayed by 90° and the same amplitude is excited, so that the antenna has a wider axial ratio Bandwidth, and achieve low profile.
  • FIG. 1 is a schematic structural diagram of a substrate integrated waveguide circularly polarized antenna provided by the first embodiment of the present invention
  • Figure 1 (a) is a schematic diagram of the structure of the first metal layer in a substrate integrated waveguide circularly polarized antenna provided by the first embodiment of the present invention
  • Figure 1 (b) is a schematic diagram of a dielectric layer in a substrate integrated waveguide circularly polarized antenna provided by the first embodiment of the present invention
  • Fig. 1(c) is a schematic structural diagram of a second metal layer in a substrate integrated waveguide circularly polarized antenna provided by the first embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a substrate integrated waveguide circularly polarized array antenna according to a second embodiment of the present invention
  • FIG. 3 is a schematic diagram of the structure of a feeder network structure layer provided by the second embodiment of the present invention.
  • FIG. 4 is a simulation result of the reflection coefficient S 11 of the structure layer of the feed network provided by the second embodiment of the present invention.
  • Figure 5 (a) is a graph of amplitude curves of the four feed ends of a feed network structure layer provided by the second embodiment of the present invention.
  • Fig. 5(b) is a phase diagram of the four feeding ends of a feeding network structure layer provided by the second embodiment of the present invention.
  • Figure 6 (a) is a measured curve of the reflection coefficient of a substrate integrated waveguide circularly polarized array antenna provided by the second embodiment of the present invention.
  • Fig. 6(b) is a measured axial ratio curve of a substrate integrated waveguide circularly polarized array antenna provided by the second embodiment of the present invention.
  • Fig. 6(c) is a measured pattern of a substrate integrated waveguide circularly polarized array antenna provided by the second embodiment of the present invention at 9.47GHz;
  • Fig. 6(d) is another measured pattern of a substrate integrated waveguide circularly polarized array antenna provided by the second embodiment of the present invention at 9.47 GHz.
  • 100-array antenna structure layer 110-first metal layer; 111-first through-hole array; 112-rectangular slot; 120-dielectric layer; 121-second through-hole array; 122-first feed through hole; 130 -Second metal layer; 131-Third via array; 132-Second feeding via; 200-Feeding network structure layer; 210-First Wilkinson power divider; 220-Second Wilkinson power Distributor; 230-the third Wilkinson power divider; a-feeding start end; b, c, d, e-feeding end.
  • installed should be interpreted broadly.
  • it can be fixed connection, detachable connection, or integral structure; it can be mechanical connection or point connection; it can be directly connected, or indirectly connected through an intermediary, or between two devices, elements or components. Interconnection between the two.
  • installed can be fixed connection, detachable connection, or integral structure; it can be mechanical connection or point connection; it can be directly connected, or indirectly connected through an intermediary, or between two devices, elements or components. Interconnection between the two.
  • first means two or more.
  • the present invention provides a substrate-integrated waveguide circularly polarized antenna, an array antenna and an antenna system, which can produce a miniaturized substrate-integrated waveguide circularly polarized antenna and a substrate-integrated waveguide circularly polarized antenna.
  • Array antenna and can use the feed network structure layer composed of three Wilkinson power dividers for four substrate integrated waveguide circularly polarized antennas to perform adjacent output ports with phases lagging by 90° and the same amplitude excitation, so that The antenna forms a wider axial ratio bandwidth and achieves a low profile.
  • the following examples are used for description.
  • FIG. 1(a) to FIG. 1(c) are schematic structural diagrams of a substrate-integrated waveguide circularly polarized antenna provided by this embodiment.
  • 1(a) is a schematic diagram of the structure of the first metal layer 110 in the substrate integrated waveguide circularly polarized antenna
  • FIG. 1(b) is a schematic diagram of the dielectric layer 120 in the substrate integrated waveguide circularly polarized antenna
  • (c) is a schematic diagram of the second metal layer 130 in the substrate integrated waveguide circularly polarized antenna.
  • the substrate integrated waveguide circularly polarized antenna includes a first metal layer 110, a dielectric layer 120, and a second metal layer 130 arranged in sequence, wherein,
  • the first metal layer 110 has a first through hole array 111 and three etched rectangular slits 112; the rectangular slits 112 are used to adjust circular polarization radiation parameters.
  • the dielectric layer 120 is made of a dielectric material, and has a second through hole array 121 and a first feed through hole 122 that match the first through hole array 111.
  • the second metal layer 130 is connected to the ground terminal, and has a third through hole array 131 that is the same as the first through hole array 111 and a second feed through hole 132 that matches the first through hole 122.
  • the second metal layer 130 is the ground plane.
  • the first through hole array 111, the second through hole array 121, and the third through hole array 131 are used to form a confinement cavity for confining electromagnetic waves together with the first metal layer 110 and the second metal layer 130.
  • the three etched rectangular slits 112 are a first rectangular slit 112, a second rectangular slit 112, and a third rectangular slit 112, respectively, wherein,
  • the first rectangular gap 112 is located on the first side of the first metal layer 110;
  • the second rectangular slot 112 is located on the second side of the first metal layer 110 connected to the first side;
  • the third rectangular slit 112 is located at the junction of the first side and the second side.
  • the first metal layer 110, the dielectric layer 120, and the second metal layer 130 are sequentially matched and arranged, and the shapes of the first metal layer 110, the dielectric layer 120, and the second metal layer 130 are all right-angled triangles. ; Among them, the two right-angled sides of the first metal layer 110 are the first side and the second side respectively.
  • the lengths of the sides of the first metal layer 110, the dielectric layer 120, and the second metal layer 130 are all 20 to 30 mm;
  • the thickness of the dielectric layer 120 is in the range of 1.4 to 1.7 mm, the dielectric constant of the dielectric layer 120 is in the range of 3.5 to 4.5, and the dielectric loss angle is in the range of 0.002 to 0.02.
  • the inner walls of the first feed through hole 122 and the second feed through hole 132 are both plated with a metal material.
  • a new resonance mode is excited by introducing a slot, and the substrate integrated waveguide circularly polarized antenna is designed using 1/4 mode SIW technology.
  • the area of the antenna can be 24mm*24mm, FR4_epoxy plate (relative dielectric constant of 4.4, dielectric loss angle of 0.02) is selected, and its thickness is 1.57mm.
  • FR4_epoxy plate relative dielectric constant of 4.4, dielectric loss angle of 0.02
  • the antenna obtains circular polarization radiation performance.
  • This kind of substrate integrated waveguide circular polarization antenna can directly feed the first metal layer 110 by using a coaxial line with a characteristic impedance of 50 ⁇ .
  • the substrate-integrated waveguide circularly polarized antenna described in this embodiment can produce a miniaturized substrate-integrated waveguide circularly polarized antenna, so that the substrate-integrated waveguide circularly polarized array antenna can solve the problem of axial ratio bandwidth.
  • the problem of narrow and difficult to achieve low profile provides the basis for manufacturing structure.
  • FIG. 2 is a schematic structural diagram of a substrate integrated waveguide circularly polarized array antenna provided by this embodiment.
  • the substrate integrated waveguide circularly polarized array antenna shown in FIG. 2 includes a feed network structure layer 200 and four substrate integrated waveguide circularly polarized antennas described in the first embodiment, wherein:
  • an array antenna structure layer 100 which is a planar structure; that is, the four substrate integrated waveguide circular polarization antennas are arranged on the same plane.
  • the feed network structure layer 200 is disposed on the side of the second metal layer 130 in the array antenna structure layer 100.
  • each of the substrate integrated waveguide circularly polarized antennas has the same triangle shape, and the array antenna structure layer 100 has a square shape.
  • the substrate integrated waveguide circularly polarized antenna further includes a metalized probe for transmitting antenna signals.
  • the metalized probes are respectively connected to both the array antenna structure layer 100 and the feed network structure layer 200, and the metalized probes are arranged in the first feed through hole 122 and the second feed through hole 132 to form a combination In the feed cavity.
  • the substrate integrated waveguide circular polarization array antenna uses a feed network structure composed of three Wilkinson power splitters to build an antenna model composed of four QMSIW CP antenna units.
  • the current feed network structure layer 200 is a Wilkinson feed network structure layer with four equal power divisions.
  • FIG. 3 is a schematic diagram of the structure of the feed network structure layer 200.
  • the feed network structure layer 200 includes a first Wilkinson power divider 210, a second Wilkinson power divider 220 and a third Wilkinson power divider 230.
  • the first Wilkinson power divider 210 is connected to two of the four substrate integrated waveguide circularly polarized antennas, and the second Wilkinson power divider 220 is respectively connected to the four substrate integrated waveguide circularly polarized antennas. The other two are connected;
  • the third Wilkinson power divider 230 is connected to the first Wilkinson power divider 210 and the second Wilkinson power divider 220 respectively.
  • the first Wilkinson power splitter 210 includes a feeding end c and a feeding end b
  • the second Wilkinson power splitter 220 includes a feeding end d and a feeding end e
  • the third Wilkinson power divider 230 includes a feed start terminal a.
  • the first Wilkinson power divider 210, the second Wilkinson power divider 220, and the third Wilkinson power divider 230 can be designed on Rogers RO4350 (tm) plate (the relative dielectric constant is 3.66, the dielectric loss cut angle is 0.004), the height of the sheet can be 0.508, the feed start end a and four feed ends (ie, feed end b, feed end c, feed end d and feed end e) microstrip
  • the characteristic impedance of the lines is 50 ⁇ .
  • the width of the microstrip line structure is 1.15mm, and the feed When the characteristic impedance of the electric start terminal a and the four feeding terminals is 70 ⁇ , the width of the microstrip line structure is 0.62mm.
  • FIG. 4 is a simulation result of the reflection coefficient S 11 of the feed network structure layer 200 provided by this embodiment. It can be seen from FIG. 4 that the reflection coefficient S 11 of the feed network structure layer 200 composed of the quarter-divided Wilkinson power divider is in a wide range, that is, the reflection coefficient S 11 is less than -10 dB.
  • Figure 5 (a) is a kind of feed network structure layer 200 provided by the embodiment of the four feeding ends (ie, feeding end b, feeding end c, The amplitude curves of the feeding end d and the feeding end e).
  • FIG. 5(b) is a phase graph of the four feeding ends of the feeding network structure layer 200 provided in this embodiment. It can be observed that the four feeding ends can be in a relatively wide frequency band, and the feeding amplitude value is maintained between -6dB ⁇ -7dB, and the phase difference of the adjacent port phases fluctuates around 90°. value.
  • the feed design can ensure that the circularly polarized array antenna forms a wider axial ratio bandwidth and achieves a low profile in a relatively wide frequency range.
  • FIG. 6(a) to 6(d) are the test results of the substrate integrated waveguide circular polarization array antenna provided by this embodiment.
  • Figure 6 (a) is the measured curve of the reflection coefficient of the substrate integrated waveguide circularly polarized array antenna
  • Figure 6 (b) is the measured curve of the axial ratio of the substrate integrated waveguide circularly polarized array antenna
  • the substrate integrated waveguide circularly polarized array antenna mainly uses sequential rotation (SRT) feeding technology to form the substrate integrated waveguide circularly polarized antenna (ie 1/4 mode SIW circularly polarized antenna unit).
  • Array and use the feed network structure layer 200 (Wilkinson feed network) to feed the 1/4-mode SIW circularly polarized antenna unit through a metal probe to obtain a broadband circularly polarized array composed of miniaturized SIW array elements antenna.
  • the miniaturized SIW structure that is, the 1/4-mode SIW circularly polarized antenna is sequentially rotated 90° to form an array antenna, and the feeder network is used to feed it to expand the working bandwidth of the antenna.
  • the substrate-integrated waveguide circularly polarized array antenna shown in Figure 2 can produce miniaturized substrate-integrated waveguide circularly polarized antennas and substrate-integrated waveguide circularly polarized array antennas, and can use three Weil
  • the feed network structure layer 200 composed of Jinsen power divider is four substrate-integrated waveguide circularly polarized antennas, and the adjacent output ports are sequentially delayed by 90° and the same amplitude is excited, so that the antenna has a wider axial ratio. Bandwidth, and achieve low profile.
  • This embodiment includes an antenna system, which includes a coaxial cable, electronic equipment, and the substrate integrated waveguide circular polarization array antenna described in the second embodiment.
  • this antenna system can produce miniaturized substrate integrated waveguide circularly polarized antennas and substrate integrated waveguide circularly polarized array antennas, and can use the feed network structure layer 200 composed of three Wilkinson power splitters.
  • the adjacent output ports are sequentially delayed by 90° in phase and the same amplitude is excited, so that the antenna forms a wider axial ratio bandwidth and achieves a low profile.
  • electronic devices include computers, mobile phones, and tablet computers, which are not limited in this embodiment.
  • the substrate integrated waveguide circularly polarized array antenna is preferably the substrate integrated waveguide circularly polarized array antenna described in the second embodiment, including an array antenna structure obtained by combining four substrate integrated waveguide circularly polarized antennas.
  • Layer 100, the array antenna structure layer 100 is a planar structure; the feed network structure layer 200 is disposed on one side of the second metal layer 130 in the array antenna structure layer 100.
  • the substrate integrated waveguide circularly polarized antenna is preferably the substrate integrated waveguide circularly polarized antenna described in the second embodiment, which includes a first metal layer 110, a dielectric layer 120, and a second metal layer 130 arranged in sequence.
  • the first metal layer 110 has a first through hole array 111 and three etched rectangular slits 112; the rectangular slits 112 are used to adjust circular polarization radiation parameters;
  • the dielectric layer 120 is made of a dielectric material and has a A second through hole array 121 and a first feed through hole 122 that match the through hole array 111;
  • the second metal layer 130 is connected to the ground terminal and has the same third through hole array 131 and the first through hole array 111
  • the second feed through hole 132 matched with the first feed through hole 122; the first through hole array 111, the second through hole array 121, and the third through hole array 131 are used to interact with the first metal layer 110 and the second
  • the metal layers 130 collectively form a confinement cavity for confi

Abstract

The present invention provides a circularly polarized substrate-integrated waveguide antenna, array antenna and antenna system, comprising a first metal layer, a medium layer and a second metal layer that are successively disposed. The first metal layer has a first through-hole array and three etched rectangular gaps, the rectangular gaps being used for regulating circularly polarized radiation parameters; the medium layer is made of dielectric substances, and has a second through-hole array matching the first through-hole and a first feed through-hole; the second metal layer is connected to the ground terminal, and has a third through-hole array which is the same as the first through-hole array and a second feed through-hole matching the first feed through-hole; the first through-hole array, the second through-hole array and the third through-hole array are used for forming a limit cavity to limit electromagnetic wave together with the first metal layer and the second metal layer. Hence, the circularly polarized substrate-integrated waveguide antenna, array antenna and antenna system according to the present invention can form a broader axial ratio bandwidth and realize a low profile.

Description

一种基片集成波导圆极化天线、阵列天线及天线系统Substrate integrated waveguide circular polarization antenna, array antenna and antenna system 技术领域Technical field
本发明涉及天线技术领域，具体而言，涉及一种基片集成波导圆极化天线、阵列天线及天线系统。The present invention relates to the field of antenna technology, in particular to a substrate integrated waveguide circularly polarized antenna, an array antenna and an antenna system.
背景技术Background technique
在射频系统中，圆极化天线因为能够解决无线信道中的法拉第旋转效应，接收任意极化的来波，并能抑制雨雾反射杂波干扰，而使得其应用变得越来越广泛。其中，微带圆极化天线通常具有两种实现方式：In radio frequency systems, circularly polarized antennas can be used more and more widely because they can solve the Faraday rotation effect in the wireless channel, receive arbitrary polarized incoming waves, and suppress the interference of rain and fog reflection clutter. Among them, microstrip circular polarization antennas usually have two implementation modes:
其一，是在天线的特定位置对天线的场分布进行微扰，以实现激励两个幅度相等、具有90°相位差的正交模式；One is to perturb the field distribution of the antenna at a specific position of the antenna, so as to excite two orthogonal modes with equal amplitude and 90° phase difference;
其二，通过微带天线贴片上的十字缝隙，实现天线的圆极化。Second, the circular polarization of the antenna is realized through the cross slot on the microstrip antenna patch.
然而，在实现中发现，上述的这两种天线皆具有加工简单的优势，但是，两者的工作带宽都很窄。虽然基片集成波导(Substrate Integrated Waveguide，SIW)兼有微带和传统金属波导结构的优点，但是目前SIW圆极化天线的带宽仍然有限，特别是轴比带宽还比较窄，并且难以实现低剖面。However, it is found in the implementation that the above two antennas have the advantage of simple processing, but the working bandwidth of both is very narrow. Although Substrate Integrated Waveguide (SIW) has the advantages of both microstrip and traditional metal waveguide structure, the bandwidth of SIW circularly polarized antennas is still limited, especially the axial ratio bandwidth is relatively narrow, and it is difficult to achieve low profile .
发明内容Summary of the invention
鉴于上述问题，本发明提供了一种基片集成波导圆极化天线、阵列天线及天线系统，能够形成较宽的轴比带宽，并且实现低剖面。In view of the above problems, the present invention provides a substrate-integrated waveguide circular polarization antenna, an array antenna and an antenna system, which can form a wider axial ratio bandwidth and achieve a low profile.
为了实现上述目的，本发明采用如下的技术方案：In order to achieve the above objectives, the present invention adopts the following technical solutions:
第一方面，本发明提供了一种基片集成波导圆极化天线，包括依次设置的第一金属层、介质层以及第二金属层，其中，In the first aspect, the present invention provides a substrate-integrated waveguide circularly polarized antenna, comprising a first metal layer, a dielectric layer, and a second metal layer arranged in sequence, wherein:
所述第一金属层具有第一通孔阵列和三个刻蚀出的矩形缝隙；所述矩形缝隙用于调整圆极化辐射参数；The first metal layer has a first array of through holes and three rectangular slits etched out; the rectangular slits are used to adjust circular polarization radiation parameters;
所述介质层由电介质材料制成，并具有与所述第一通孔阵列相匹配的第二通孔阵列和第一馈电通孔；The dielectric layer is made of a dielectric material and has a second through hole array and a first feed through hole that match the first through hole array;
所述第二金属层与接地端相连，具有与所述第一通孔阵列相同的第三通孔阵列和与所述第一馈电通孔相匹配的第二馈电通孔；The second metal layer is connected to the ground terminal, and has a third through hole array that is the same as the first through hole array and a second power feeding through hole that matches the first power feeding through hole;
所述第一通孔阵列、所述第二通孔阵列以及所述第三通孔阵列用于与所述第一金属层和所述第二金属层共同形成用于限制电磁波的限制腔。The first through hole array, the second through hole array, and the third through hole array are used to form a confinement cavity for confining electromagnetic waves together with the first metal layer and the second metal layer.
作为一种可选的实施方式，所述三个刻蚀出的矩形缝隙分别为第一矩形缝隙、第二矩形缝隙以及第三矩形缝隙，其中，As an optional embodiment, the three etched rectangular slits are respectively a first rectangular slit, a second rectangular slit, and a third rectangular slit, wherein,
所述第一矩形缝隙位于所述第一金属层的第一侧部；The first rectangular gap is located on the first side of the first metal layer;
所述第二矩形缝隙位于所述第一金属层的与所述第一侧部相连接的第二侧部；The second rectangular gap is located on a second side of the first metal layer connected to the first side;
所述第三矩形缝隙位于所述第一侧部和所述第二侧部的接合处。The third rectangular gap is located at the junction of the first side portion and the second side portion.
作为一种可选的实施方式，所述第一金属层、所述介质层以及所述第二金属层依次匹配设置，并且所述第一金属层和所述介质层以及所述第二金属层的形状都呈直角三角形；其中，所述第一金属层的两条直角边分别为所述第一侧部和所述第二侧部。As an optional implementation manner, the first metal layer, the dielectric layer, and the second metal layer are sequentially matched and arranged, and the first metal layer, the dielectric layer, and the second metal layer The shapes of are all right-angled triangles; wherein the two right-angled sides of the first metal layer are the first side and the second side respectively.
作为一种可选的实施方式，所述第一金属层、所述介质层以及所述第二金属层三者的侧边的长度范围均为20～30mm；As an optional implementation manner, the lengths of the sides of the first metal layer, the dielectric layer, and the second metal layer all range from 20 to 30 mm;
所述介质层的厚度范围为1.4～1.7mm，并且所述介质层的介电常数的范围为3.5～4.5，介质损耗角的范围为0.002～0.02。The thickness of the dielectric layer ranges from 1.4 to 1.7 mm, the dielectric constant of the dielectric layer ranges from 3.5 to 4.5, and the dielectric loss angle ranges from 0.002 to 0.02.
作为一种可选的实施方式，所述第一馈电通孔和所述第二馈电通孔的内壁皆镀有金属材料。As an optional implementation manner, the inner walls of the first feed through hole and the second feed through hole are both plated with a metal material.
第二方面，本发明提供了一种基片集成波导圆极化阵列天线，包括馈电网络结构层和四个如第一方面所述的基片集成波导圆极化天线，其中，In a second aspect, the present invention provides a substrate-integrated waveguide circularly polarized array antenna, including a feed network structure layer and four substrate-integrated waveguide circularly polarized antennas as described in the first aspect, wherein:
所述四个基片集成波导圆极化天线相互组合得到阵列天线结构层，所述阵列天线结构层为平面结构；Combining the four substrate-integrated waveguide circularly polarized antennas to obtain an array antenna structure layer, and the array antenna structure layer is a planar structure;
所述馈电网络结构层设置于所述阵列天线结构层中所述第二金属层的一侧。The feed network structure layer is arranged on one side of the second metal layer in the array antenna structure layer.
作为一种可选的实施方式，所述阵列天线结构层中，每个基片集成波导圆极化天线皆呈相同的三角形，并且，所述四个基片集成波导圆极化天线排布成正方形阵列。As an optional implementation manner, in the array antenna structure layer, each substrate integrated waveguide circularly polarized antenna has the same triangle shape, and the four substrate integrated waveguide circularly polarized antennas are arranged in Square array.
作为一种可选的实施方式，馈电网络结构层包括第一威尔金森功率分配器、第二威尔金森功率分配器以及第三威尔金森功率分配器，其中，As an optional implementation manner, the feed network structure layer includes a first Wilkinson power divider, a second Wilkinson power divider, and a third Wilkinson power divider, wherein:
所述第一威尔金森功率分配器与所述四个基片集成波导圆极化天线中的两个相连接，所述第二威尔金森功率分配器与所述四个基片集成波导圆极化天线中的另外两个相连接；所述第三威尔金森功率分配器与所述第一威尔金森功率分配器和所述第二威尔金森功率分配器相连接。The first Wilkinson power splitter is connected to two of the four substrate integrated waveguide circularly polarized antennas, and the second Wilkinson power splitter is connected to the four substrate integrated waveguide circular polarization antennas. The other two of the polarized antennas are connected; the third Wilkinson power divider is connected to the first Wilkinson power divider and the second Wilkinson power divider.
作为一种可选的实施方式，所述基片集成波导圆极化天线还包括用于传输天线信号的金 属化探针，其中，As an optional implementation manner, the substrate-integrated waveguide circularly polarized antenna further includes a metalized probe for transmitting antenna signals, wherein:
所述金属化探针与所述阵列天线结构层和所述馈电网络结构层相连接，并且，所述金属化探针设置于所述第一馈电通孔和所述第二馈电通孔组合形成的馈电腔中。The metalized probe is connected to the array antenna structure layer and the feed network structure layer, and the metalized probe is disposed in the first feed through hole and the second feed through In the feed cavity formed by the combination of holes.
第三方面，本发明提供了一种天线系统，包括同轴电缆、电子设备以及第二方面所述的基片集成波导圆极化阵列天线，其中，In a third aspect, the present invention provides an antenna system, including a coaxial cable, an electronic device, and the substrate-integrated waveguide circular polarization array antenna of the second aspect, wherein:
所述基片集成波导圆极化阵列天线与通过所述同轴电缆与所述电子设备连接；The substrate integrated waveguide circular polarization array antenna is connected to the electronic device through the coaxial cable;
所述基片集成波导圆极化阵列天线接收目标信号，并通过所述同轴电缆将所述目标信号传输至所述电子设备；The substrate integrated waveguide circularly polarized array antenna receives a target signal, and transmits the target signal to the electronic device through the coaxial cable;
所述电子设备通过所述同轴电缆接收所述目标信号，并对所述目标信号进行处理。The electronic device receives the target signal through the coaxial cable, and processes the target signal.
根据本发明提供的基片集成波导圆极化天线、阵列天线及天线系统，能够制作得到小型化基片集成波导圆极化天线和基片集成波导圆极化阵列天线，并且能够利用三个威尔金森功率分配器组成的馈电网络结构层为四个基片集成波导圆极化天线进行相邻输出端口相位依次滞后90°且同等幅度的激励，从而使得该天线形成了较宽的轴比带宽，并且实现低剖面。According to the substrate integrated waveguide circularly polarized antenna, array antenna and antenna system provided by the present invention, a miniaturized substrate integrated waveguide circularly polarized antenna and a substrate integrated waveguide circularly polarized array antenna can be manufactured, and three powers can be used. The structure layer of the feed network composed of the Elkinson power divider consists of four substrate integrated waveguide circularly polarized antennas, and the adjacent output ports are sequentially delayed by 90° and the same amplitude is excited, so that the antenna has a wider axial ratio Bandwidth, and achieve low profile.
为使本发明的上述目的、特征和优点能更明显易懂，下文特举较佳实施例，并配合所附附图，作详细说明如下。In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, preferred embodiments are described below in detail with accompanying drawings.
附图说明Description of the drawings
为了更清楚地说明本发明实施例的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，应当理解，以下附图仅示出了本发明的某些实施例，因此不应被看作是对本发明范围的限定。In order to explain the technical solutions of the embodiments of the present invention more clearly, the following will briefly introduce the drawings needed in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore do not It should be seen as limiting the scope of the present invention.
图1是本发明第一实施例提供的一种基片集成波导圆极化天线的结构示意图；FIG. 1 is a schematic structural diagram of a substrate integrated waveguide circularly polarized antenna provided by the first embodiment of the present invention;
图1(a)是本发明第一实施例提供的一种基片集成波导圆极化天线中第一金属层的结构示意图；Figure 1 (a) is a schematic diagram of the structure of the first metal layer in a substrate integrated waveguide circularly polarized antenna provided by the first embodiment of the present invention;
图1(b)是本发明第一实施例提供的一种基片集成波导圆极化天线中介质层的结构示意图；Figure 1 (b) is a schematic diagram of a dielectric layer in a substrate integrated waveguide circularly polarized antenna provided by the first embodiment of the present invention;
图1(c)是本发明第一实施例提供的一种基片集成波导圆极化天线中第二金属层的结构示意图；Fig. 1(c) is a schematic structural diagram of a second metal layer in a substrate integrated waveguide circularly polarized antenna provided by the first embodiment of the present invention;
图2是本发明第二实施例提供的一种基片集成波导圆极化阵列天线的结构示意图；2 is a schematic structural diagram of a substrate integrated waveguide circularly polarized array antenna according to a second embodiment of the present invention;
图3是本发明第二实施例提供的一种馈电网络结构层的结构示意图；3 is a schematic diagram of the structure of a feeder network structure layer provided by the second embodiment of the present invention;
图4是本发明第二实施例提供的一种馈电网络结构层的反射系数S 11的仿真结果； FIG. 4 is a simulation result of the reflection coefficient S 11 of the structure layer of the feed network provided by the second embodiment of the present invention;
图5(a)是本发明第二实施例提供的一种馈电网络结构层的四个馈电末端的幅度曲线图；Figure 5 (a) is a graph of amplitude curves of the four feed ends of a feed network structure layer provided by the second embodiment of the present invention;
图5(b)是本发明第二实施例提供的一种馈电网络结构层的四个馈电末端的相位曲线图；Fig. 5(b) is a phase diagram of the four feeding ends of a feeding network structure layer provided by the second embodiment of the present invention;
图6(a)是本发明第二实施例提供的一种基片集成波导圆极化阵列天线的反射系数实测曲线；Figure 6 (a) is a measured curve of the reflection coefficient of a substrate integrated waveguide circularly polarized array antenna provided by the second embodiment of the present invention;
图6(b)是本发明第二实施例提供的一种基片集成波导圆极化阵列天线的轴比实测曲线；Fig. 6(b) is a measured axial ratio curve of a substrate integrated waveguide circularly polarized array antenna provided by the second embodiment of the present invention;
图6(c)是本发明第二实施例提供的一种基片集成波导圆极化阵列天线在9.47GHz处的实测方向图；Fig. 6(c) is a measured pattern of a substrate integrated waveguide circularly polarized array antenna provided by the second embodiment of the present invention at 9.47GHz;
图6(d)是本发明第二实施例提供的一种基片集成波导圆极化阵列天线在9.47GHz处的另一实测方向图。Fig. 6(d) is another measured pattern of a substrate integrated waveguide circularly polarized array antenna provided by the second embodiment of the present invention at 9.47 GHz.
主要元件符号说明：Symbol description of main components:
100‐阵列天线结构层；110‐第一金属层；111‐第一通孔阵列；112‐矩形缝隙；120‐介质层；121‐第二通孔阵列；122‐第一馈电通孔；130‐第二金属层；131‐第三通孔阵列；132‐第二馈电通孔；200‐馈电网络结构层；210‐第一威尔金森功率分配器；220‐第二威尔金森功率分配器；230‐第三威尔金森功率分配器；a‐馈电始端；b、c、d、e‐馈电末端。100-array antenna structure layer; 110-first metal layer; 111-first through-hole array; 112-rectangular slot; 120-dielectric layer; 121-second through-hole array; 122-first feed through hole; 130 -Second metal layer; 131-Third via array; 132-Second feeding via; 200-Feeding network structure layer; 210-First Wilkinson power divider; 220-Second Wilkinson power Distributor; 230-the third Wilkinson power divider; a-feeding start end; b, c, d, e-feeding end.
具体实施方式detailed description
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明的一部分实施例，而不是全部的实施例。通常情况下，附图中所示出和描述的本发明实施例所包括的组件可以通过各种不同的配置来布置和设计。因此，以下对在附图中所提供的本发明实施例的详细描述并非旨在限制要求保护的本发明的范围，而是仅仅表示本发明的选定实施例。基于本发明的实施例，本领域技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Generally, the components included in the embodiments of the present invention shown and described in the drawings can be arranged and designed through various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the protection scope of the present invention.
在本发明中，术语“上”、“下”、“左”、“右”、“前”、“后”、“顶”、“底”、“内”、“外”、“中”、“竖直”、“水平”、“横向”、“纵向”等指示的方位或位置关系为基于附图所示的方位或位置关系。这些术语主要是为了更好地描述本发明及其实施例，并非用于限定所指示的装置、元件或组成部分必须具有特定方位，或以特定方位进行构造和操作。In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", The orientation or positional relationship indicated by "vertical", "horizontal", "horizontal", "vertical" and the like is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit that the indicated device, element, or component must have a specific orientation, or be constructed and operated in a specific orientation.
并且，上述部分术语除了可以用于表示方位或位置关系以外，还可能用于表示其他含义，例如术语“上”在某些情况下也可能用于表示某种依附关系或连接关系。对于本领域普通技术人员而言，可以根据具体情况理解这些术语在本发明中的具体含义。In addition, some of the aforementioned terms may be used to indicate other meanings in addition to the orientation or position relationship. For example, the term "shang" may also be used to indicate a certain dependency relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present invention can be understood according to specific situations.
此外，术语“安装”、“设置”、“设有”、“连接”、“相连”应做广义理解。例如，可以使固定连接，可拆卸连接，或整体式构造；可以是机械连接，或点连接；可以使直接相连，或者是通过中间媒介间接相连，又或者是两个装置、元件或组成部分之间内部的联通。对于本领域普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。In addition, the terms "installed", "set", "provided", "connected" and "connected" should be interpreted broadly. For example, it can be fixed connection, detachable connection, or integral structure; it can be mechanical connection or point connection; it can be directly connected, or indirectly connected through an intermediary, or between two devices, elements or components. Interconnection between the two. For those of ordinary skill in the art, the specific meaning of the above-mentioned terms in the present invention can be understood according to specific circumstances.
此外，术语“第一”、“第二”等主要是用于区分不同的装置、元件或组成部分(具体的种类和构造可能相同也可能不同)，并非用于表明或暗示所指示装置、元件或组成部分的相对重要性和数量。除非另有说明，“多个”的含义为两个或两个以上。In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the indicated devices or components. Or the relative importance and number of components. Unless otherwise specified, "plurality" means two or more.
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
针对现有技术中的问题，本发明提供了一种基片集成波导圆极化天线、阵列天线及天线系统，能够制作得到小型化基片集成波导圆极化天线和基片集成波导圆极化阵列天线，并且能够利用三个威尔金森功率分配器组成的馈电网络结构层为四个基片集成波导圆极化天线进行相邻输出端口相位依次滞后90°且同等幅度的激励，从而使得该天线形成了较宽的轴比带宽，并且实现低剖面。下面通过实施例进行描述。Aiming at the problems in the prior art, the present invention provides a substrate-integrated waveguide circularly polarized antenna, an array antenna and an antenna system, which can produce a miniaturized substrate-integrated waveguide circularly polarized antenna and a substrate-integrated waveguide circularly polarized antenna. Array antenna, and can use the feed network structure layer composed of three Wilkinson power dividers for four substrate integrated waveguide circularly polarized antennas to perform adjacent output ports with phases lagging by 90° and the same amplitude excitation, so that The antenna forms a wider axial ratio bandwidth and achieves a low profile. The following examples are used for description.
为使本发明的上述目的、特征和优点能更明显易懂，下文特举较佳实施例，并配合所附附图，作详细说明如下。In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, preferred embodiments are described below in detail with accompanying drawings.
实施例1Example 1
请参阅图1(a)～图1(c)，是本实施例提供的一种基片集成波导圆极化天线的结构示意图。其中，图1(a)是基片集成波导圆极化天线中第一金属层110的结构示意图；图1(b)是基片集成波导圆极化天线中介质层120的结构示意图；图1(c)是基片集成波导圆极化天线中第二金属层130的结构示意图。Please refer to FIG. 1(a) to FIG. 1(c), which are schematic structural diagrams of a substrate-integrated waveguide circularly polarized antenna provided by this embodiment. 1(a) is a schematic diagram of the structure of the first metal layer 110 in the substrate integrated waveguide circularly polarized antenna; FIG. 1(b) is a schematic diagram of the dielectric layer 120 in the substrate integrated waveguide circularly polarized antenna; (c) is a schematic diagram of the second metal layer 130 in the substrate integrated waveguide circularly polarized antenna.
本实施例中，该基片集成波导圆极化天线，包括依次设置的第一金属层110、介质层120以及第二金属层130，其中，In this embodiment, the substrate integrated waveguide circularly polarized antenna includes a first metal layer 110, a dielectric layer 120, and a second metal layer 130 arranged in sequence, wherein,
第一金属层110具有第一通孔阵列111和三个刻蚀出的矩形缝隙112；矩形缝隙112用于调整圆极化辐射参数。The first metal layer 110 has a first through hole array 111 and three etched rectangular slits 112; the rectangular slits 112 are used to adjust circular polarization radiation parameters.
介质层120由电介质材料制成，并具有与第一通孔阵列111相匹配的第二通孔阵列121和第一馈电通孔122。The dielectric layer 120 is made of a dielectric material, and has a second through hole array 121 and a first feed through hole 122 that match the first through hole array 111.
第二金属层130与接地端相连，具有与第一通孔阵列111相同的第三通孔阵列131和与第一馈电通孔122相匹配的第二馈电通孔132。The second metal layer 130 is connected to the ground terminal, and has a third through hole array 131 that is the same as the first through hole array 111 and a second feed through hole 132 that matches the first through hole 122.
本实施例中，第二金属层130就是接地面。In this embodiment, the second metal layer 130 is the ground plane.
第一通孔阵列111、第二通孔阵列121以及第三通孔阵列131皆用于与第一金属层110和第二金属层130共同形成限制电磁波的限制腔。The first through hole array 111, the second through hole array 121, and the third through hole array 131 are used to form a confinement cavity for confining electromagnetic waves together with the first metal layer 110 and the second metal layer 130.
作为一种可选的实施方式，三个刻蚀出的矩形缝隙112分别为第一矩形缝隙112、第二矩形缝隙112以及第三矩形缝隙112，其中，As an optional embodiment, the three etched rectangular slits 112 are a first rectangular slit 112, a second rectangular slit 112, and a third rectangular slit 112, respectively, wherein,
第一矩形缝隙112位于第一金属层110的第一侧部；The first rectangular gap 112 is located on the first side of the first metal layer 110;
第二矩形缝隙112位于第一金属层110的与第一侧部相连接的第二侧部；The second rectangular slot 112 is located on the second side of the first metal layer 110 connected to the first side;
第三矩形缝隙112位于第一侧部和第二侧部的接合处。The third rectangular slit 112 is located at the junction of the first side and the second side.
作为一种可选的实施方式，第一金属层110、介质层120以及第二金属层130依次匹配设置，并且第一金属层110和介质层120以及第二金属层130的形状都呈直角三角形；其中，第一金属层110的两条直角边分别为第一侧部和第二侧部。As an optional implementation manner, the first metal layer 110, the dielectric layer 120, and the second metal layer 130 are sequentially matched and arranged, and the shapes of the first metal layer 110, the dielectric layer 120, and the second metal layer 130 are all right-angled triangles. ; Among them, the two right-angled sides of the first metal layer 110 are the first side and the second side respectively.
作为一种可选的实施方式，第一金属层110、介质层120以及第二金属层130三者的侧边的长度范围均为20～30mm；As an optional embodiment, the lengths of the sides of the first metal layer 110, the dielectric layer 120, and the second metal layer 130 are all 20 to 30 mm;
介质层120的厚度范围为1.4～1.7mm，并且介质层120的介电常数的范围为3.5～4.5，介质损耗角的范围为0.002～0.02。The thickness of the dielectric layer 120 is in the range of 1.4 to 1.7 mm, the dielectric constant of the dielectric layer 120 is in the range of 3.5 to 4.5, and the dielectric loss angle is in the range of 0.002 to 0.02.
作为一种可选的实施方式，第一馈电通孔122和第二馈电通孔132的内壁皆镀有金属材料。As an optional implementation manner, the inner walls of the first feed through hole 122 and the second feed through hole 132 are both plated with a metal material.
在本实施例所描述的基片集成波导圆极化天线中，通过引入缝隙激发新的谐振模式，采用1/4模SIW技术设计了基片集成波导圆极化天线。该天线的面积可以24mm*24mm，选用FR4_epoxy板材(相对介电常数为4.4，介质损耗角为0.02)，其厚度1.57mm。通过在上层金属面刻蚀三个矩形缝隙112，调整参数，天线获得圆极化辐射性能。该种基片集成波导圆极化天线可以采用特性阻抗为50Ω的同轴线直接对第一金属层110进行馈电。In the substrate integrated waveguide circularly polarized antenna described in this embodiment, a new resonance mode is excited by introducing a slot, and the substrate integrated waveguide circularly polarized antenna is designed using 1/4 mode SIW technology. The area of the antenna can be 24mm*24mm, FR4_epoxy plate (relative dielectric constant of 4.4, dielectric loss angle of 0.02) is selected, and its thickness is 1.57mm. By etching three rectangular slots 112 on the upper metal surface and adjusting the parameters, the antenna obtains circular polarization radiation performance. This kind of substrate integrated waveguide circular polarization antenna can directly feed the first metal layer 110 by using a coaxial line with a characteristic impedance of 50Ω.
可见，实施本实施例所描述的基片集成波导圆极化天线，可以制作出小型化的基片集成波导圆极化天线，从而为基片集成波导圆极化阵列天线解决轴比带宽还比较窄，并且难以实现低剖面的问题提供制作结构基础。It can be seen that implementing the substrate-integrated waveguide circularly polarized antenna described in this embodiment can produce a miniaturized substrate-integrated waveguide circularly polarized antenna, so that the substrate-integrated waveguide circularly polarized array antenna can solve the problem of axial ratio bandwidth. The problem of narrow and difficult to achieve low profile provides the basis for manufacturing structure.
实施例2Example 2
请参阅图2，是本实施例提供的一种基片集成波导圆极化阵列天线的结构示意图。其中， 图2所示的基片集成波导圆极化阵列天线包括馈电网络结构层200和四个上述实施例一所描述的基片集成波导圆极化天线，其中，Please refer to FIG. 2, which is a schematic structural diagram of a substrate integrated waveguide circularly polarized array antenna provided by this embodiment. Wherein, the substrate integrated waveguide circularly polarized array antenna shown in FIG. 2 includes a feed network structure layer 200 and four substrate integrated waveguide circularly polarized antennas described in the first embodiment, wherein:
四个基片集成波导圆极化天线相互组合得到阵列天线结构层100，阵列天线结构层100为平面结构；即四个基片集成波导圆极化天线于同一平面设置。Four substrate integrated waveguide circular polarization antennas are combined with each other to obtain an array antenna structure layer 100, which is a planar structure; that is, the four substrate integrated waveguide circular polarization antennas are arranged on the same plane.
馈电网络结构层200设置于阵列天线结构层100中第二金属层130一侧。The feed network structure layer 200 is disposed on the side of the second metal layer 130 in the array antenna structure layer 100.
作为一种可选的实施方式，阵列天线结构层100中，每个基片集成波导圆极化天线皆呈相同的三角形，并且，阵列天线结构层100呈正方形。As an optional implementation manner, in the array antenna structure layer 100, each of the substrate integrated waveguide circularly polarized antennas has the same triangle shape, and the array antenna structure layer 100 has a square shape.
本实施例中，基片集成波导圆极化天线还包括用于传输天线信号的金属化探针。In this embodiment, the substrate integrated waveguide circularly polarized antenna further includes a metalized probe for transmitting antenna signals.
其中，金属化探针分别与阵列天线结构层100和馈电网络结构层200两者相连接，并且，金属化探针设置于第一馈电通孔122和第二馈电通孔132组合形成的馈电腔中。The metalized probes are respectively connected to both the array antenna structure layer 100 and the feed network structure layer 200, and the metalized probes are arranged in the first feed through hole 122 and the second feed through hole 132 to form a combination In the feed cavity.
本实施例中，基片集成波导圆极化阵列天线利用构建的由三个威尔金森功分器组成的馈电网路结构，建立由四个QMSIW CP天线单元构成的天线模型。In this embodiment, the substrate integrated waveguide circular polarization array antenna uses a feed network structure composed of three Wilkinson power splitters to build an antenna model composed of four QMSIW CP antenna units.
本实施例中，本馈电网络结构层200为功率四等分的威尔金森馈电网络结构层。请参阅图3，图3是馈电网络结构层200的结构示意图。如图3所示，馈电网络结构层200包括第一威尔金森功率分配器210、第二威尔金森功率分配器220以及第三威尔金森功率分配器230。In this embodiment, the current feed network structure layer 200 is a Wilkinson feed network structure layer with four equal power divisions. Please refer to FIG. 3, which is a schematic diagram of the structure of the feed network structure layer 200. As shown in FIG. 3, the feed network structure layer 200 includes a first Wilkinson power divider 210, a second Wilkinson power divider 220 and a third Wilkinson power divider 230.
其中，第一威尔金森功率分配器210与四个基片集成波导圆极化天线中的两个相连接，第二威尔金森功率分配器220分别与四个基片集成波导圆极化天线中的另外两个相连接；Among them, the first Wilkinson power divider 210 is connected to two of the four substrate integrated waveguide circularly polarized antennas, and the second Wilkinson power divider 220 is respectively connected to the four substrate integrated waveguide circularly polarized antennas. The other two are connected;
第三威尔金森功率分配器230分别与第一威尔金森功率分配器210和第二威尔金森功率分配器220相连接。The third Wilkinson power divider 230 is connected to the first Wilkinson power divider 210 and the second Wilkinson power divider 220 respectively.
本实施例中，如图3所示，第一威尔金森功率分配器210包括馈电末端c和馈电末端b，第二威尔金森功率分配器220包括馈电末端d和馈电末端e，第三威尔金森功率分配器230包括馈电始端a。In this embodiment, as shown in FIG. 3, the first Wilkinson power splitter 210 includes a feeding end c and a feeding end b, and the second Wilkinson power splitter 220 includes a feeding end d and a feeding end e. , The third Wilkinson power divider 230 includes a feed start terminal a.
本实施例中，第一威尔金森功率分配器210、第二威尔金森功率分配器220以及第三威尔金森功率分配器230可以设计在Rogers RO4350(tm)板材上(相对介电常数为3.66，介质损耗切角为0.004)，板材高度可以为0.508，馈电始端a和四个馈电末端(即馈电末端b、馈电末端c、馈电末端d和馈电末端e)微带线的特性阻抗均为50Ω。可以计算出，在基片集成波导圆极化阵列天线的工作频率为10GHz时，馈电始端a和四个馈电末端的特性阻抗为50Ω时，其微带线结构的宽度为1.15mm，馈电始端a和四个馈电末端的特性阻抗为70Ω时，其微带线结构的宽度为0.62mm。In this embodiment, the first Wilkinson power divider 210, the second Wilkinson power divider 220, and the third Wilkinson power divider 230 can be designed on Rogers RO4350 (tm) plate (the relative dielectric constant is 3.66, the dielectric loss cut angle is 0.004), the height of the sheet can be 0.508, the feed start end a and four feed ends (ie, feed end b, feed end c, feed end d and feed end e) microstrip The characteristic impedance of the lines is 50Ω. It can be calculated that when the working frequency of the substrate integrated waveguide circularly polarized array antenna is 10GHz, and the characteristic impedance of the feed start end a and the four feed ends is 50Ω, the width of the microstrip line structure is 1.15mm, and the feed When the characteristic impedance of the electric start terminal a and the four feeding terminals is 70Ω, the width of the microstrip line structure is 0.62mm.
图4为本实施例提供的一种馈电网络结构层200的反射系数S 11的仿真结果。由图4可知， 该四等分的威尔金森(Wilkinson)功率分配器组成的馈电网络结构层200的反射系数S 11在较宽范围内，即反射系数S 11小于‐10dB。 FIG. 4 is a simulation result of the reflection coefficient S 11 of the feed network structure layer 200 provided by this embodiment. It can be seen from FIG. 4 that the reflection coefficient S 11 of the feed network structure layer 200 composed of the quarter-divided Wilkinson power divider is in a wide range, that is, the reflection coefficient S 11 is less than -10 dB.
请参阅图5(a)和图5(b)，图5(a)是实施例提供的一种馈电网络结构层200的四个馈电末端(即馈电末端b、馈电末端c、馈电末端d和馈电末端e)的幅度曲线图，图5(b)是本实施例提供的一种馈电网络结构层200的四个馈电末端的相位曲线图。从中可观察得到，四个馈电末端可以在相对较宽的频段内，其馈电幅度值维持在‐6dB～‐7dB之间，相邻端口相位的相位差为以90°为中心上下浮动的值。换言之，该馈电设计能够在比较宽的频段范围内，保障圆极化阵列天线形成了较宽的轴比带宽，并且实现低剖面。Please refer to Figure 5 (a) and Figure 5 (b), Figure 5 (a) is a kind of feed network structure layer 200 provided by the embodiment of the four feeding ends (ie, feeding end b, feeding end c, The amplitude curves of the feeding end d and the feeding end e). FIG. 5(b) is a phase graph of the four feeding ends of the feeding network structure layer 200 provided in this embodiment. It can be observed that the four feeding ends can be in a relatively wide frequency band, and the feeding amplitude value is maintained between -6dB～-7dB, and the phase difference of the adjacent port phases fluctuates around 90°. value. In other words, the feed design can ensure that the circularly polarized array antenna forms a wider axial ratio bandwidth and achieves a low profile in a relatively wide frequency range.
图6(a)～图6(d)是本实施例提供的基片集成波导圆极化阵列天线的测试结果。其中，图6(a)是基片集成波导圆极化阵列天线的反射系数实测曲线；图6(b)是基片集成波导圆极化阵列天线的轴比实测曲线；图6(c)是基片集成波导圆极化阵列天线在其工作频率为9.47GHz、仰角φ＝0°时的实测方向图；图6(d)是基片集成波导圆极化阵列天线在其工作频率为9.47GHz、仰角φ＝90°时的另一实测方向图。6(a) to 6(d) are the test results of the substrate integrated waveguide circular polarization array antenna provided by this embodiment. Among them, Figure 6 (a) is the measured curve of the reflection coefficient of the substrate integrated waveguide circularly polarized array antenna; Figure 6 (b) is the measured curve of the axial ratio of the substrate integrated waveguide circularly polarized array antenna; Figure 6 (c) is The measured pattern of the substrate integrated waveguide circularly polarized array antenna at its working frequency of 9.47GHz and the elevation angle φ=0°; Figure 6(d) is the substrate integrated waveguide circularly polarized array antenna at its working frequency of 9.47GHz , Another measured pattern when the elevation angle φ=90°.
从图6(a)可以看出基片集成波导圆极化阵列天线的反射系数范围较宽，从图6(a)～图6(d)中可以看出，阻抗带宽为33.23％(8.43GHz～11.79GHz)，仿真轴比带宽为26.77％(8.28GHz～10.85GHz)，轴比在9.47GHz时最小，其值为0.49dB。It can be seen from Figure 6(a) that the reflection coefficient range of the substrate integrated waveguide circular polarization array antenna is relatively wide. From Figure 6(a) to Figure 6(d), it can be seen that the impedance bandwidth is 33.23% (8.43GHz). ～11.79GHz), the simulated axial ratio bandwidth is 26.77% (8.28GHz～10.85GHz), the axial ratio is the smallest at 9.47GHz, and its value is 0.49dB.
在本实施例中，基片集成波导圆极化阵列天线主要利用顺序旋转(SRT)的馈电技术将基片集成波导圆极化天线(即1/4模SIW圆极化天线单元)组成天线阵，并利用馈电网络结构层200(威尔金森馈电网络)通过金属探针对1/4模SIW圆极化天线单元进行馈电，获得小型化SIW阵元组成的宽带圆极化阵列天线。将小型化的SIW结构即1/4模SIW圆极化天线顺序旋转90°组成阵列天线，利用馈电网络对其馈电，以拓展天线的工作带宽。In this embodiment, the substrate integrated waveguide circularly polarized array antenna mainly uses sequential rotation (SRT) feeding technology to form the substrate integrated waveguide circularly polarized antenna (ie 1/4 mode SIW circularly polarized antenna unit). Array, and use the feed network structure layer 200 (Wilkinson feed network) to feed the 1/4-mode SIW circularly polarized antenna unit through a metal probe to obtain a broadband circularly polarized array composed of miniaturized SIW array elements antenna. The miniaturized SIW structure, that is, the 1/4-mode SIW circularly polarized antenna is sequentially rotated 90° to form an array antenna, and the feeder network is used to feed it to expand the working bandwidth of the antenna.
可见，实施图2所示的基片集成波导圆极化阵列天线，可以制作出小型化的基片集成波导圆极化天线和基片集成波导圆极化阵列天线，并且能够利用三个威尔金森功率分配器组成的馈电网络结构层200为四个基片集成波导圆极化天线进行相邻输出端口相位依次滞后90°且同等幅度的激励，从而使得该天线形成了较宽的轴比带宽，并且实现低剖面。It can be seen that implementing the substrate-integrated waveguide circularly polarized array antenna shown in Figure 2 can produce miniaturized substrate-integrated waveguide circularly polarized antennas and substrate-integrated waveguide circularly polarized array antennas, and can use three Weil The feed network structure layer 200 composed of Jinsen power divider is four substrate-integrated waveguide circularly polarized antennas, and the adjacent output ports are sequentially delayed by 90° and the same amplitude is excited, so that the antenna has a wider axial ratio. Bandwidth, and achieve low profile.
实施例3Example 3
本实施例中包括一种天线系统，该天线系统包括同轴电缆、电子设备以及实施例二中所描述的基片集成波导圆极化阵列天线。This embodiment includes an antenna system, which includes a coaxial cable, electronic equipment, and the substrate integrated waveguide circular polarization array antenna described in the second embodiment.
实施这种天线系统，可以制作出小型化的基片集成波导圆极化天线和基片集成波导圆极 化阵列天线，并且能够利用三个威尔金森功率分配器组成的馈电网络结构层200为四个基片集成波导圆极化天线进行相邻输出端口相位依次滞后90°且同等幅度的激励，从而使得该天线形成了较宽的轴比带宽，并且实现低剖面。The implementation of this antenna system can produce miniaturized substrate integrated waveguide circularly polarized antennas and substrate integrated waveguide circularly polarized array antennas, and can use the feed network structure layer 200 composed of three Wilkinson power splitters. For four substrate integrated waveguide circularly polarized antennas, the adjacent output ports are sequentially delayed by 90° in phase and the same amplitude is excited, so that the antenna forms a wider axial ratio bandwidth and achieves a low profile.
本实施例中，电子设备包括计算机、手机以及平板电脑等设备，对此本实施例中不作任何限定。In this embodiment, electronic devices include computers, mobile phones, and tablet computers, which are not limited in this embodiment.
本实施例中，基片集成波导圆极化阵列天线优选为实施例二所描述的基片集成波导圆极化阵列天线，包括四个基片集成波导圆极化天线相互组合得到的阵列天线结构层100，该阵列天线结构层100为平面结构；馈电网络结构层200设置于阵列天线结构层100中第二金属层130的一侧。In this embodiment, the substrate integrated waveguide circularly polarized array antenna is preferably the substrate integrated waveguide circularly polarized array antenna described in the second embodiment, including an array antenna structure obtained by combining four substrate integrated waveguide circularly polarized antennas. Layer 100, the array antenna structure layer 100 is a planar structure; the feed network structure layer 200 is disposed on one side of the second metal layer 130 in the array antenna structure layer 100.
本实施例中，基片集成波导圆极化天线优选为实施例二所描述的基片集成波导圆极化天线，包括依次设置的第一金属层110、介质层120以及第二金属层130。其中，第一金属层110具有第一通孔阵列111和三个刻蚀出的矩形缝隙112；矩形缝隙112用于调整圆极化辐射参数；介质层120由电介质材料制成，并具有与第一通孔阵列111相匹配的第二通孔阵列121和第一馈电通孔122；第二金属层130与接地端相连，具有与第一通孔阵列111相同的第三通孔阵列131和与第一馈电通孔122相匹配的第二馈电通孔132；第一通孔阵列111、第二通孔阵列121以及第三通孔阵列131用于与第一金属层110和第二金属层130共同形成用于限制电磁波的限制腔。In this embodiment, the substrate integrated waveguide circularly polarized antenna is preferably the substrate integrated waveguide circularly polarized antenna described in the second embodiment, which includes a first metal layer 110, a dielectric layer 120, and a second metal layer 130 arranged in sequence. Wherein, the first metal layer 110 has a first through hole array 111 and three etched rectangular slits 112; the rectangular slits 112 are used to adjust circular polarization radiation parameters; the dielectric layer 120 is made of a dielectric material and has a A second through hole array 121 and a first feed through hole 122 that match the through hole array 111; the second metal layer 130 is connected to the ground terminal and has the same third through hole array 131 and the first through hole array 111 The second feed through hole 132 matched with the first feed through hole 122; the first through hole array 111, the second through hole array 121, and the third through hole array 131 are used to interact with the first metal layer 110 and the second The metal layers 130 collectively form a confinement cavity for confining electromagnetic waves.
应理解，说明书通篇中提到的“本实施例中”、“本发明实施例中”或“作为一种可选的实施方式”意味着与实施例有关的特定特征、结构或特性包括在本发明的多个实施例中。因此，在整个说明书各处出现的“本实施例中”、“本发明实施例中”或“作为一种可选的实施方式”未必一定指相同的实施例。此外，这些特定特征、结构或特性可以以任意适合的方式结合在一个或多个实施例中。本领域技术人员也应该知悉，说明书中所描述的实施例均属于可选实施例，所涉及的动作和模块并不一定是本发明所必须的。It should be understood that the “in the present embodiment”, “in the embodiment of the present invention” or “as an alternative embodiment” mentioned throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in In multiple embodiments of the present invention. Therefore, the appearance of "in the present embodiment", "in the embodiment of the present invention" or "as an optional implementation" in various places throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. Those skilled in the art should also know that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily required by the present invention.
在本发明的各种实施例中，应理解，上述各过程的序号的大小并不意味着执行顺序的必然先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本发明实施例的实施过程构成任何限定。In the various embodiments of the present invention, it should be understood that the size of the sequence numbers of the above processes does not mean the necessary sequence of execution. The execution order of each process should be determined by its function and internal logic, and should not be implemented in the present invention. The implementation process of the example constitutes any limitation.
以上，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应与权利要求的保护范围为准。The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, and they shall cover Within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

  1. 一种基片集成波导圆极化天线，其特征在于，包括依次设置的第一金属层、介质层以及第二金属层，其中，A substrate integrated waveguide circularly polarized antenna, which is characterized in that it comprises a first metal layer, a dielectric layer and a second metal layer arranged in sequence, wherein:
    所述第一金属层具有第一通孔阵列和三个刻蚀出的矩形缝隙；所述矩形缝隙用于调整圆极化辐射参数；The first metal layer has a first array of through holes and three rectangular slits etched out; the rectangular slits are used to adjust circular polarization radiation parameters;
    所述介质层由电介质材料制成，并具有与所述第一通孔阵列相匹配的第二通孔阵列和第一馈电通孔；The dielectric layer is made of a dielectric material and has a second through hole array and a first feed through hole that match the first through hole array;
    所述第二金属层与接地端相连，具有与所述第一通孔阵列相同的第三通孔阵列和与所述第一馈电通孔相匹配的第二馈电通孔；The second metal layer is connected to the ground terminal, and has a third through hole array that is the same as the first through hole array and a second power feeding through hole that matches the first power feeding through hole;
    所述第一通孔阵列、所述第二通孔阵列以及所述第三通孔阵列用于与所述第一金属层和所述第二金属层共同形成用于限制电磁波的限制腔。The first through hole array, the second through hole array, and the third through hole array are used to form a confinement cavity for confining electromagnetic waves together with the first metal layer and the second metal layer.
  2. 根据权利要求1所述的基片集成波导圆极化天线，其特征在于，所述三个刻蚀出的矩形缝隙分别为第一矩形缝隙、第二矩形缝隙以及第三矩形缝隙，其中，The substrate-integrated waveguide circularly polarized antenna according to claim 1, wherein the three etched rectangular slots are a first rectangular slot, a second rectangular slot, and a third rectangular slot, respectively, wherein:
    所述第一矩形缝隙位于所述第一金属层的第一侧部；The first rectangular gap is located on the first side of the first metal layer;
    所述第二矩形缝隙位于所述第一金属层的与所述第一侧部相连接的第二侧部；The second rectangular gap is located on a second side of the first metal layer connected to the first side;
    所述第三矩形缝隙位于所述第一侧部和所述第二侧部的接合处。The third rectangular gap is located at the junction of the first side portion and the second side portion.
  3. 根据权利要求2所述的基片集成波导圆极化天线，其特征在于，The substrate-integrated waveguide circularly polarized antenna according to claim 2, wherein:
    所述第一金属层、所述介质层以及所述第二金属层依次匹配设置，并且所述第一金属层和所述介质层以及所述第二金属层的形状都呈直角三角形；其中，所述第一金属层的两条直角边分别为所述第一侧部和所述第二侧部。The first metal layer, the dielectric layer, and the second metal layer are sequentially matched and arranged, and the shapes of the first metal layer, the dielectric layer, and the second metal layer are all right-angled triangles; wherein, The two right-angled sides of the first metal layer are the first side and the second side respectively.
  4. 根据权利要求3所述的基片集成波导圆极化天线，其特征在于，The substrate integrated waveguide circularly polarized antenna according to claim 3, characterized in that:
    所述第一金属层、所述介质层以及所述第二金属层三者的侧边的长度范围均为20～30mm；The lengths of the sides of the first metal layer, the dielectric layer, and the second metal layer all range from 20 to 30 mm;
    所述介质层的厚度范围为1.4～1.7mm，并且所述介质层的介电常数的范围为3.5～4.5，介质损耗角的范围为0.002～0.02。The thickness of the dielectric layer ranges from 1.4 to 1.7 mm, the dielectric constant of the dielectric layer ranges from 3.5 to 4.5, and the dielectric loss angle ranges from 0.002 to 0.02.
  5. 根据权利要求1所述的基片集成波导圆极化天线，其特征在于，The substrate-integrated waveguide circularly polarized antenna according to claim 1, wherein:
    所述第一馈电通孔和所述第二馈电通孔的内壁皆镀有金属材料。The inner walls of the first feed through hole and the second feed through hole are both plated with metal material.
  6. 一种基片集成波导圆极化阵列天线，其特征在于，包括馈电网络结构层和四个如权利要求1～5任一项所述的基片集成波导圆极化天线，其中，A substrate integrated waveguide circularly polarized array antenna, characterized by comprising a feed network structure layer and four substrate integrated waveguide circularly polarized antennas according to any one of claims 1 to 5, wherein:
    所述四个基片集成波导圆极化天线相互组合得到阵列天线结构层，所述阵列天线结构层为平面结构；Combining the four substrate-integrated waveguide circularly polarized antennas to obtain an array antenna structure layer, and the array antenna structure layer is a planar structure;
    所述馈电网络结构层设置于所述阵列天线结构层中所述第二金属层的一侧。The feed network structure layer is arranged on one side of the second metal layer in the array antenna structure layer.
  7. 根据权利要求6所述的基片集成波导圆极化阵列天线，其特征在于，所述阵列天线结构层中，每个基片集成波导圆极化天线皆呈相同的三角形，并且，所述四个基片集成波导圆极化天线排布成正方形阵列。The substrate integrated waveguide circularly polarized array antenna according to claim 6, characterized in that, in the array antenna structure layer, each substrate integrated waveguide circularly polarized antenna has the same triangle shape, and the four The two substrate integrated waveguide circularly polarized antennas are arranged in a square array.
  8. 根据权利要求6所述的基片集成波导圆极化阵列天线，其特征在于，馈电网络结构层包括第一威尔金森功率分配器、第二威尔金森功率分配器以及第三威尔金森功率分配器，其中，The substrate integrated waveguide circular polarization array antenna according to claim 6, wherein the feed network structure layer includes a first Wilkinson power divider, a second Wilkinson power divider, and a third Wilkinson power divider. Power divider, where,
    所述第一威尔金森功率分配器与所述四个基片集成波导圆极化天线中的两个相连接，所述第二威尔金森功率分配器与所述四个基片集成波导圆极化天线中的另外两个相连接；所述第三威尔金森功率分配器与所述第一威尔金森功率分配器和所述第二威尔金森功率分配器相连接。The first Wilkinson power splitter is connected to two of the four substrate integrated waveguide circularly polarized antennas, and the second Wilkinson power splitter is connected to the four substrate integrated waveguide circular polarization antennas. The other two of the polarized antennas are connected; the third Wilkinson power divider is connected to the first Wilkinson power divider and the second Wilkinson power divider.
  9. 根据权利要求6所述的基片集成波导圆极化阵列天线，其特征在于，所述基片集成波导圆极化天线还包括用于传输天线信号的金属化探针，其中，The substrate integrated waveguide circularly polarized array antenna according to claim 6, wherein the substrate integrated waveguide circularly polarized antenna further comprises a metalized probe for transmitting antenna signals, wherein:
    所述金属化探针与所述阵列天线结构层和所述馈电网络结构层相连接，并且，所述金属化探针设置于所述第一馈电通孔和所述第二馈电通孔组合形成的馈电腔中。The metalized probe is connected to the array antenna structure layer and the feed network structure layer, and the metalized probe is disposed in the first feed through hole and the second feed through In the feed cavity formed by the combination of holes.
  10. 一种天线系统，其特征在于，包括同轴电缆、电子设备以及权利要求6～9任一项所述的基片集成波导圆极化阵列天线，其中，An antenna system, characterized by comprising a coaxial cable, electronic equipment, and the substrate integrated waveguide circularly polarized array antenna according to any one of claims 6-9, wherein:
    所述基片集成波导圆极化阵列天线与通过所述同轴电缆与所述电子设备连接；The substrate integrated waveguide circular polarization array antenna is connected to the electronic device through the coaxial cable;
    所述基片集成波导圆极化阵列天线接收目标信号，并通过所述同轴电缆将所述目标信号传输至所述电子设备；The substrate integrated waveguide circularly polarized array antenna receives a target signal, and transmits the target signal to the electronic device through the coaxial cable;
    所述电子设备通过所述同轴电缆接收所述目标信号，并对所述目标信号进行处理。The electronic device receives the target signal through the coaxial cable, and processes the target signal.
PCT/CN2020/072283 2019-01-21 2020-01-15 Circularly polarized substrate-integrated waveguide antenna, array antenna and antenna system WO2020151551A1 (en)

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