WO2022270031A1 - パッチアレイアンテナ、アンテナ装置、レーダー装置 - Google Patents
パッチアレイアンテナ、アンテナ装置、レーダー装置 Download PDFInfo
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- WO2022270031A1 WO2022270031A1 PCT/JP2022/010260 JP2022010260W WO2022270031A1 WO 2022270031 A1 WO2022270031 A1 WO 2022270031A1 JP 2022010260 W JP2022010260 W JP 2022010260W WO 2022270031 A1 WO2022270031 A1 WO 2022270031A1
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- 239000000758 substrate Substances 0.000 claims abstract description 13
- 230000010287 polarization Effects 0.000 claims description 6
- 230000005855 radiation Effects 0.000 abstract description 15
- 238000010586 diagram Methods 0.000 description 19
- 230000006866 deterioration Effects 0.000 description 7
- 230000008859 change Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000010363 phase shift Effects 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/03—Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/34—Adaptation for use in or on ships, submarines, buoys or torpedoes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
- H01Q21/0075—Stripline fed arrays
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- 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
- H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
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- 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
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
- H01Q9/045—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular feeding means
Definitions
- the present invention relates to patch array antennas, antenna devices, and radar devices.
- Patent Documents 1 and 2 disclose series-fed patch array antennas in which a plurality of antenna elements are arranged in one direction and connected in series.
- the conventional series-fed patch array antenna described above is based on the operating principle of creating a standing wave over the entire antenna. It is necessary to design from the viewpoint of In addition, the amount of phase shift also requires severe adjustment, and the change affects the change in the radiation amount of each antenna element, so there is a problem that it is difficult to control the desired weighting.
- the present invention has been made in view of the above problems, and its main purpose is to provide a patch array antenna, an antenna device, and a radar device in which the weighting of the radiation amount of each antenna element can be easily controlled.
- a patch array antenna includes a dielectric substrate, a plurality of antenna elements formed on the dielectric substrate, arranged in one direction and connected in series, at least one of at least one input terminal and at least one output terminal connected to at least one antenna element of the plurality of antenna elements extends in the one direction of the antenna element Connected off centerline. According to this, it is sufficient to design in the direction from the feed point to the antenna end, and it becomes easy to control the weighting of the radiation amount of each antenna element.
- the at least one input terminal and the at least one output terminal may be connected at different positions in a direction perpendicular to the center line. According to this, it becomes easier to control the weighting of the radiation amount of each antenna element.
- the at least one input terminal and the at least one output terminal may be connected at positions off the center line. According to this, it becomes easier to control the weighting of the radiation amount of each antenna element.
- the at least one input terminal may be two or more input terminals
- the at least one output terminal may be two or more output terminals. According to this, it becomes easy to control the weighting of the radiation amount of each antenna element, and it becomes easy to suppress characteristic deterioration due to mode mixing.
- some of the two or more input terminals are connected to a position offset from the centerline to a first lateral position, and the remaining input terminals are connected to the centerline to the first lateral position. It may be connected at a second laterally off position opposite to the one laterally. According to this, it becomes easier to suppress characteristic deterioration due to mode mixing.
- some of the two or more output terminals are connected to a position offset from the center line to a first lateral position, and the remaining output terminals are connected to the center line to the second position. It may be connected at a second laterally off position opposite to the one laterally. According to this, it becomes easier to suppress characteristic deterioration due to mode mixing.
- the two or more input terminals may be even-numbered input terminals, and the even-numbered input terminals may be connected at positions symmetrical about the center line. According to this, it becomes easier to suppress characteristic deterioration due to mode mixing.
- the two or more output terminals may be even-numbered output terminals, and the even-numbered output terminals may be connected at positions symmetrical about the center line. According to this, it becomes easier to suppress characteristic deterioration due to mode mixing.
- opposite-phase radio waves may be input to two of the two or more input terminals. According to this, it becomes easy to suppress characteristic deterioration due to mode mixing.
- the patch array antenna may generate radio waves with a plane of polarization orthogonal to the one direction. According to this, it becomes easy to control the weighting of the radiation amount of each antenna element.
- the patch array antenna may not include a phase shifter. This makes it possible to eliminate radiation from the phase shifter.
- An antenna device includes a plurality of the patch array antennas, and the plurality of patch array antennas are arranged in a direction perpendicular to the arrangement direction of the antenna elements. According to this, an antenna device including the patch array antenna can be realized.
- a radar device includes the above antenna device. According to this, it is possible to realize a radar device having the patch array antenna.
- FIG. 1B is an enlarged view of a main part of FIG. 1A;
- FIG. It is a figure for demonstrating a reference example. It is a figure for demonstrating the effect
- FIG. 4 is a diagram showing frequency characteristics of an antenna element;
- FIG. 10 is a diagram showing an example of a patch array antenna according to a second embodiment;
- FIG. FIG. 5B is an enlarged view of a main part of FIG.
- FIG. 5A It is a figure which shows the specific example of an antenna element and an input-output terminal.
- FIG. 4 is a diagram showing frequency characteristics of an antenna element;
- FIG. 5 is a diagram showing calculation results of directional characteristics;
- FIG. 5 is a diagram showing calculation results of directional characteristics;
- It is a figure which shows the design example of a patch array antenna.
- FIG. 5 is a diagram showing calculation results of directional characteristics;
- FIG. 5 is a diagram showing calculation results of directional characteristics;
- FIG. 10 is a diagram showing an example of a patch array antenna according to a first modified example;
- FIG. 10 is a diagram showing an example of a patch array antenna according to a second modified example; It is a figure which shows the example of an antenna device. It is a figure which shows the example of a radar apparatus.
- FIG. 1A is a plan view showing an example of a patch array antenna 1A according to the first embodiment.
- FIG. 1B is an enlarged view of a main part of FIG. 1A.
- the patch array antenna 1A comprises a dielectric substrate 2 and a plurality of antenna elements 3 formed on the first main surface of the dielectric substrate 2.
- the number of antenna elements 3 is not limited to the illustrated example.
- a ground conductor plate (not shown) is provided on the second main surface opposite to the first main surface of dielectric substrate 2 .
- the patch array antenna 1A is a series-fed patch array antenna, and a plurality of antenna elements 3 are arranged in one direction and connected in series via a feeder line 4 .
- the direction in which the antenna elements 3 are arranged will be referred to as the "arrangement direction L”
- the direction orthogonal thereto and parallel to the main surface of the dielectric substrate 2 will be referred to as the "width direction W”.
- the antenna element 3 and the feed line 4 are formed, for example, by patterning a metal foil provided on the dielectric substrate 2 by photolithography. Therefore, the antenna element 3 and the feeding line 4 are integrated.
- the antenna element 3 and the feeder line 4 are sometimes called an "antenna pattern”.
- the feed line 4 may extend obliquely with respect to the arrangement direction L as shown in FIGS. 1A and 1B, or may extend in the arrangement direction L and be bent in a stepped manner as shown in FIGS. 5A and 5B described later. may
- a feeding point 5 is provided in the center of the antenna pattern arrangement direction L. Specifically, there are an even number of antenna elements 3 , and a feeding point 5 is provided on a feeding line 4 formed between two central antenna elements 3 . Not limited to this, the feeding point 5 may be provided at one end in the arrangement direction L of the antenna patterns.
- the antenna element 3 has a shape that is symmetrical about a center line (line of symmetry) C extending in the arrangement direction L. As shown in FIG. In other words, the center line C passes through the center of the width direction W of the antenna element 3 .
- the center line C can also be said to be a plane of symmetry orthogonal to the width direction W when viewed three-dimensionally.
- Two feeder lines 4 are connected to the antenna element 3 (except for the antenna element 3 at the end).
- the other feeder line 4 serves as an output terminal 42 . Note that only the input terminal 41 is connected to the antenna element 3 at the end.
- the antenna element 3 is formed in a rectangular shape having two sides 31 and 32 extending in the arrangement direction L and two sides 33 and 34 extending in the width direction W.
- An input terminal 41 is connected to one side 33 of the two sides 33 and 34
- an output terminal 42 is connected to the other side 34 .
- At least one of the input terminal 41 and the output terminal 42 (both in the illustrated example) is connected to a position off the center line C of the antenna element 3 .
- the input terminal 41 and the output terminal 42 are connected to different positions in the width direction W of the antenna element 3 .
- a reference example is a patch array antenna called a standing wave type in which a plurality of antenna elements are connected in series via a feeder line passing on the center line.
- the figure shows how radio waves fed from the center of the antenna pattern propagate.
- a radio wave fed from the center of the antenna pattern travels toward the edge, and part of it is radiated by the antenna element. Also, radio waves are reflected at the ends of the antenna pattern, travel toward the center again, and are partially radiated from the antenna element. By repeating the radiation of the reciprocating radio waves in this way, radiation is radiated from the whole as a result.
- the reason why it is called a standing wave is that the radio wave traveling from the center to the edge and the radio wave reflected at the edge and returning to the center overlap. For that reason, when viewed from one antenna element, it is necessary to radiate both the right and left radio waves in the same way, so the feed line connected to the antenna element is formed on the center line.
- this embodiment has been devised based on the idea that all radio waves traveling from the center to the end of the antenna pattern are radiated by the antenna element 3 and are not returned in the opposite direction. rice field.
- the radio wave input from the input terminal 41 is transmitted to the lower stage from the antenna element 3 and the output terminal 42. It is possible to control the amount and the amount in one way.
- 3A and 3B are diagrams showing specific examples of the antenna element 3, the input terminal 41, and the output terminal 42 and their frequency characteristics.
- the input and output terminals are connected on the center line of the antenna element, and since the reflection coefficients are the same in the direction of propagation of radio waves and in the opposite direction, matching on the input side is required. If so, it is necessary to consider compatibility on the output side, making design difficult.
- FIG. 4 is a diagram showing a design example of the patch array antenna 1A.
- an antenna with a beam width of 10° and a side lobe level of -40° is designed with 10 elements, it functions as an array antenna by weighting the amount of radiation as shown in the figure.
- the antenna element of the reference example is usually a half-wave antenna and generates radio waves with a plane of polarization parallel to the arrangement direction.
- the problem in this case is that, in the case of power feeding from the center, a phase difference of 180° left and right is required, that is, a phase shifter composed of a meander line or the like is required at the center.
- a phase shifter composed of a meander line or the like is required at the center.
- high-frequency bands such as 24 GHz and 76 GHz, since radiation is easily caused by bending of a line, radiation by a phase shifter poses a problem.
- the present embodiment it is possible to design the entire antenna by a single and one-way design without considering the influence of reflection as described above. It is easy to design to generate radio waves in the plane of polarization, which makes it possible to omit the phase shifter.
- FIG. 5A is a plan view showing an example of a patch array antenna 1B according to the second embodiment.
- FIG. 5B is an enlarged view of a main part of FIG. 5A. A detailed description may be omitted by assigning the same number to the configuration that overlaps with the above embodiment.
- two input terminals 41 and two output terminals 42 are connected to the antenna elements 3 (excluding the antenna elements 3 at the ends). Only two input terminals 41 are connected to the antenna element 3 at the end.
- the antenna element 3 is formed in a rectangular shape, and two input terminals 41 are connected to one side 33 of two sides 33 and 34 extending in the width direction W, and two input terminals 41 are connected to the other side 34 .
- one output terminal 42 is connected.
- At least one terminal (all terminals in the illustrated example) of the two input terminals 41 and the two output terminals 42 is connected to a position away from the center line C of the antenna element 3. .
- the two input terminals 41 and the two output terminals 42 are connected to different positions in the width direction W of the antenna element 3 .
- one input terminal 41 of the two input terminals 41 is connected to a position deviated from the center line C to one side (first side) in the width direction W, and the other input terminal 41 is connected to the center line. It is connected to a position deviating from C to the other width direction W (second side). That is, the two input terminals 41 are connected on both sides in the width direction W so as to sandwich the center line C therebetween.
- the two input terminals 41 are connected at positions symmetrical about the center line C. Even when the number of input terminals 41 is four or more, it is preferable that they are connected at positions symmetrical about the center line C. FIG. Also, the shapes of the two input terminals 41 themselves are symmetrical about the center line C. As shown in FIG.
- one output terminal 42 of the two output terminals 42 is connected to a position deviated from the center line C in one direction (first side) in the width direction W, and the other output terminal 42 is connected to the center line. It is connected at a position deviating from the line C to the other width direction W (second side). In other words, the two output terminals 42 are also connected on both sides in the width direction so as to sandwich the center line C therebetween.
- the two output terminals 42 are also connected at positions symmetrical about the center line C. Even when the number of output terminals 42 is four or more, it is preferable that they are connected at positions symmetrical about the center line C. FIG. Also, the shapes of the two output terminals 42 themselves are symmetrical about the center line C. As shown in FIG.
- the two input terminals 41 may be connected inside in the width direction W of the two output terminals 42 as shown in FIG. 5B, or may be connected outside in the width direction W on the contrary.
- the two output terminals 42 may be connected outside in the width direction W or inside in the width direction W of the two input terminals 41 .
- the two input terminals 41 and the two output terminals 42 may be alternately connected in the width direction W.
- FIG. 6A is a diagram showing specific examples of the antenna element 3, the input terminal 41, and the output terminal 42 of the patch array antenna 1B according to the second embodiment.
- the two input terminals 41 and the two output terminals 42 are connected to positions that are line-symmetrical about the center line C of the antenna element 3 , which are offset from the center line C of the antenna element 3 .
- Radio waves having a phase difference of 180° are input to the two input terminals 41 .
- FIG. 6B shows the sum of the amounts of power output from the two output terminals 42 when radio waves having a phase difference of 180° are input to the two input terminals 41 of FIG. 6A as frequency characteristics of the scattering matrix. graph. According to this, it can be seen that there is no trap in the vicinity of the center frequency and the band is widened compared to the first embodiment having one input terminal 41 and one output terminal 42 shown in FIG. 3B.
- FIG. 7A and 7B are diagrams showing the calculation results of the directivity characteristics of the eight-stage patch array antenna 1B shown in FIG. 5A.
- Z in the drawing represents the "normal direction Z" of the main surface of the dielectric substrate 2, which is orthogonal to the arrangement direction L and the width direction W.
- the patch array antenna 1B has a directional characteristic in which the spread of the arrangement direction L is suppressed.
- FIG. 8 is a diagram showing a design example of a 10-stage patch array antenna 1B.
- 9A and 9B are diagrams showing calculation results of directivity characteristics of the 10-stage patch array antenna 1B shown in FIG. According to this, it can be seen that the patch array antenna 1B has a directivity characteristic with a beam width of 5° in the arrangement direction L.
- the two input terminals 41 and the two output terminals 42 are connected to positions that are symmetrical about the center line C of the antenna element 3, and the opposite phase radio waves are input to the two input terminals 41.
- the antenna element 3 can be made to function in a single even mode, so it is possible to suppress characteristic deterioration due to mixed modes and improve designability.
- FIG. 10A is a diagram showing an example of a patch array antenna 1C according to the first modified example.
- the antenna element 3 is not limited to a rectangular shape, and may be, for example, circular. According to this, an improvement in sensitivity to horizontal polarization can be expected.
- FIG. 10B is a diagram showing an example of a patch array antenna 1D according to the second modified example. As shown in the figure, the number of feeding lines 4 interposed between the antenna elements 3 is not limited to two, and may be three or four.
- the feeder line 4 interposed between the antenna elements 3 is preferably connected at a position symmetrical about the center line C, but is not limited to this, and may be connected at a position symmetrical about the center line C. It doesn't have to be.
- FIG. 11 is a diagram showing an example of an antenna device 10 using the patch array antenna 1 (1A to 1D) described above.
- the antenna device 10 includes a plurality of patch array antennas 1 arranged in a direction orthogonal to the arrangement direction L of the antenna elements 3 .
- the antenna device 10 includes a receiving antenna 11 including six patch array antennas 1 and a transmitting antenna 12 including two patch array antennas 1.
- the antenna device 10 of this embodiment is suitable as a MIMO radar antenna.
- FIG. 12 is a diagram showing an example of a radar device 6 using the antenna device 10.
- the radar device 6 has an antenna device 10 and a control section 60 .
- the antenna device 10 transmits radio waves from the transmitting antenna 12 , converts radio waves received by the receiving antenna 11 into electrical signals, and outputs the electrical signals to the control unit 60 .
- the radar device 6 of the present embodiment is a MIMO (Multi-Input Multi-Output) radar, and is capable of beamforming that enhances directivity in a predetermined direction.
- MIMO Multi-Input Multi-Output
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Abstract
Description
た、直列給電型パッチアレイアンテナが開示されている。
図1Aは、第1実施形態に係るパッチアレイアンテナ1Aの例を示す平面図である。図1Bは、図1Aの要部拡大図である。
図5Aは、第2実施形態に係るパッチアレイアンテナ1Bの例を示す平面図である。図5Bは、図5Aの要部拡大図である。上記実施形態と重複する構成については、同番号を付すことで詳細な説明を省略することがある。
図10Aは、第1変形例に係るパッチアレイアンテナ1Cの例を示す図である。同図に示すように、アンテナエレメント3は、矩形状に限らず、例えば円形状などであってもよい。これによれば、水平偏波に対する感度向上を期待できる。
図11は、以上に説明したパッチアレイアンテナ1(1A~1D)を利用したアンテナ装置10の例を示す図である。アンテナ装置10は、アンテナエレメント3の配列方向Lと直交する方向に配列する複数のパッチアレイアンテナ1を備えている。
Claims (13)
- 誘電体基板と、
前記誘電体基板上に形成され、一方向に配列し、直列に接続された複数のアンテナエレ
メントと、
を備え、
前記複数のアンテナエレメントのうちの少なくとも1つのアンテナエレメントに接続された、少なくとも1つの入力端子及び少なくとも1つの出力端子のうちの少なくとも1つの端子が、前記アンテナエレメントの前記一方向に延びる中心線から外れた位置に接続される、
パッチアレイアンテナ。 - 前記少なくとも1つの入力端子及び前記少なくとも1つの出力端子が、前記中心線と直交する方向の互いに異なる位置に接続される、
請求項1に記載のパッチアレイアンテナ。 - 前記少なくとも1つの入力端子及び前記少なくとも1つの出力端子が、前記中心線から外れた位置に接続される、
請求項1または2に記載のパッチアレイアンテナ。 - 前記少なくとも1つの入力端子は、2つ以上の入力端子であり、
前記少なくとも1つの出力端子は、2つ以上の出力端子である、
請求項1ないし3の何れかに記載のパッチアレイアンテナ。 - 前記2つ以上の入力端子のうちの一部の入力端子は、前記中心線から第1の側方に外れた位置に接続され、残りの入力端子は、前記中心線から前記第1の側方とは反対の第2の側方に外れた位置に接続される、
請求項4に記載のパッチアレイアンテナ。 - 前記2つ以上の出力端子のうちの一部の出力端子は、前記中心線から第1の側方に外れた位置に接続され、残りの出力端子は、前記中心線から前記第1の側方とは反対の第2の側方に外れた位置に接続される、
請求項4または5に記載のパッチアレイアンテナ。 - 前記2つ以上の入力端子は、偶数の入力端子であり、
前記偶数の入力端子は、前記中心線について線対称となる位置に接続される、
請求項4ないし6の何れかに記載のパッチアレイアンテナ。 - 前記2つ以上の出力端子は、偶数の出力端子であり、
前記偶数の出力端子は、前記中心線について線対称となる位置に接続される、
請求項4ないし7の何れかに記載のパッチアレイアンテナ。 - 前記2つ以上の入力端子のうちの2つの入力端子に逆相の電波が入力される、
請求項4ないし8の何れかに記載のパッチアレイアンテナ。 - 前記パッチアレイアンテナは、前記一方向と直交する偏波面の電波を発生する、
請求項1ないし9の何れかに記載のパッチアレイアンテナ。 - 前記パッチアレイアンテナは、移相器を備えない、
請求項1ないし10の何れかに記載のパッチアレイアンテナ。 - 請求項1ないし11の何れかに記載のパッチアレイアンテナを複数備え、
前記複数のパッチアレイアンテナは、アンテナエレメントの配列方向と直交する方向に配列する、
アンテナ装置。 - 請求項12に記載のアンテナ装置を備えるレーダー装置。
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EP22827952.7A EP4362231A1 (en) | 2021-06-21 | 2022-03-09 | Patch array antenna, antenna device, and radar device |
JP2023529537A JPWO2022270031A1 (ja) | 2021-06-21 | 2022-03-09 | |
US18/380,200 US20240036156A1 (en) | 2021-06-21 | 2023-10-16 | Patch array antenna, an antenna, and a radar apparatus |
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CN116722349A (zh) * | 2023-08-11 | 2023-09-08 | 南京隼眼电子科技有限公司 | 天线结构及雷达设备 |
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JPH11251833A (ja) * | 1998-02-27 | 1999-09-17 | Toyota Central Res & Dev Lab Inc | マイクロストリップアンテナ素子およびマイクロストリップアレーアンテナ |
JP2005039751A (ja) * | 2002-08-16 | 2005-02-10 | Nippon Telegr & Teleph Corp <Ntt> | 可変移相器およびフェーズドアレイアンテナ |
EP2950390A1 (en) | 2014-05-30 | 2015-12-02 | Hyundai Mobis Co., Ltd. | Patch array antenna and apparatus for transmitting and receiving radar signal including the same |
CN106972244A (zh) | 2017-02-28 | 2017-07-21 | 惠州硕贝德无线科技股份有限公司 | 一种车载雷达阵列天线 |
JP2019186656A (ja) * | 2018-04-04 | 2019-10-24 | 株式会社デンソーテン | アンテナ装置 |
-
2022
- 2022-03-09 CN CN202280043278.XA patent/CN117501546A/zh active Pending
- 2022-03-09 EP EP22827952.7A patent/EP4362231A1/en active Pending
- 2022-03-09 WO PCT/JP2022/010260 patent/WO2022270031A1/ja active Application Filing
- 2022-03-09 JP JP2023529537A patent/JPWO2022270031A1/ja active Pending
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2023
- 2023-10-16 US US18/380,200 patent/US20240036156A1/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH11251833A (ja) * | 1998-02-27 | 1999-09-17 | Toyota Central Res & Dev Lab Inc | マイクロストリップアンテナ素子およびマイクロストリップアレーアンテナ |
JP2005039751A (ja) * | 2002-08-16 | 2005-02-10 | Nippon Telegr & Teleph Corp <Ntt> | 可変移相器およびフェーズドアレイアンテナ |
EP2950390A1 (en) | 2014-05-30 | 2015-12-02 | Hyundai Mobis Co., Ltd. | Patch array antenna and apparatus for transmitting and receiving radar signal including the same |
CN106972244A (zh) | 2017-02-28 | 2017-07-21 | 惠州硕贝德无线科技股份有限公司 | 一种车载雷达阵列天线 |
JP2019186656A (ja) * | 2018-04-04 | 2019-10-24 | 株式会社デンソーテン | アンテナ装置 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116722349A (zh) * | 2023-08-11 | 2023-09-08 | 南京隼眼电子科技有限公司 | 天线结构及雷达设备 |
CN116722349B (zh) * | 2023-08-11 | 2023-10-24 | 南京隼眼电子科技有限公司 | 天线结构及雷达设备 |
Also Published As
Publication number | Publication date |
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EP4362231A1 (en) | 2024-05-01 |
US20240036156A1 (en) | 2024-02-01 |
JPWO2022270031A1 (ja) | 2022-12-29 |
CN117501546A (zh) | 2024-02-02 |
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