TWM583136U - Millimeter wave array antenna structure - Google Patents
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Abstract
一種毫米波陣列天線結構，包括：一組依陣列編排的輻射體，該組輻射體彼此隔著一間距，所述的輻射體是四邊形元件，其被一槽孔圍成一小面積部，該小面積部不在輻射體的中央位置。該毫米波陣列天線還有多組中和線與二平行的耦合件。其中，該組中和線電連接相鄰二輻射體的角落。而且，該組輻射體在二耦合件之間。該組中和線減少毫米波陣列天線彼此間的影響，相對提高隔離度。同時，該槽孔與耦合件產生額外的場型模態，使毫米波陣列天線可操作在25GHz~28GHz的頻寬範圍，亦能擴張到24GHz~30GHz的頻寬範圍。 A millimeter wave array antenna structure comprising: a set of radiators arranged in an array, the set of radiators being spaced apart from each other by a spacing, the radiator being a quadrilateral element surrounded by a slot into a small area, the The small area is not at the center of the radiator. The millimeter wave array antenna also has a plurality of sets of neutralization lines and two parallel coupling members. Wherein, the set of neutralization lines electrically connect the corners of the adjacent two radiators. Moreover, the set of radiators is between the two coupling members. The set of neutralization lines reduces the influence of the millimeter wave array antennas on each other and relatively improves the isolation. At the same time, the slot and the coupling element generate additional field mode, so that the millimeter wave array antenna can operate in the bandwidth range of 25 GHz to 28 GHz, and can also expand to the bandwidth range of 24 GHz to 30 GHz.
Description
本創作涉及無線電波傳輸資訊的技術，特別是指一種適用於5G世代的毫米波陣列天線結構。 This creation relates to the technology of transmitting information by radio waves, and in particular to a millimeter wave array antenna structure suitable for the 5G generation.
隨著通訊技術的快速發展，通訊系統結合無線區域網路(Wireless Local Area Network，縮寫WLAN)應用在許多行動裝置，譬如智慧型通訊器、個人數位助理(Personal Digital Assistant，縮寫PDA)與筆記型電腦(NoteBook Computer或Laptop Computer)等。 With the rapid development of communication technology, the communication system combined with the Wireless Local Area Network (WLAN) is applied to many mobile devices, such as smart communication devices, personal digital assistants (PDAs) and notebooks. Computer (NoteBook Computer or Laptop Computer), etc.
無線區域網路以無線電波作為傳遞媒介，採用多輸入多輸出(Multi-Input Multi-Output，縮寫MIMO)技術來提高天線的通訊品質，解決空中訊號相互干擾的問題。 The wireless local area network uses radio waves as a transmission medium, and uses Multi-Input Multi-Output (MIMO) technology to improve the communication quality of the antenna and solve the problem of mutual interference of air signals.
另外，行動裝置朝向小型化、功能強以及多頻帶發展，陸續研發一些WLAN天線，譬如台灣第M513468號「多頻帶單平面天線結構及應用該天線結構的行動裝置」新型專利案。 In addition, mobile devices are developing toward miniaturization, function, and multi-band development, and some WLAN antennas have been developed, such as the new patent case of Taiwan M513468 "Multi-band single-plane antenna structure and mobile device using the antenna structure".
鑒於此，本創作提供之毫米波陣列天線，主要目的在於：減少毫米波陣列天線彼此間的影響，兩天線的間隔距離可小於0.01個波長，相對提高隔離度，兼具額外的場型模態產生，做好迎接5G世代來臨的準備。 In view of this, the main purpose of the millimeter wave array antenna provided by the present invention is to reduce the influence of the millimeter wave array antennas on each other. The distance between the two antennas can be less than 0.01 wavelengths, and the isolation is relatively improved, and the additional field mode is also provided. Produce and prepare for the coming of the 5G generation.
此處所稱的5G，是Fifth Generation Mobile Networks或者是 5th Generation Wireless Systems的簡稱，隸屬於4G(LTE-A、WiMax)、3G(UMTS、LTE)和2G(GSM)系統後延伸最新一代蜂窩行動通訊技術，推出新無線技術(New Radio，縮寫NR)來規範低頻(FR1，低於6GHz)和更高頻率(FR2，高於24GHz)的毫米波範圍。 The 5G referred to here is Fifth Generation Mobile Networks or 5th Generation Wireless Systems, short for 4G (LTE-A, WiMax), 3G (UMTS, LTE) and 2G (GSM) systems, extends the latest generation of cellular mobile communication technology, and introduces new wireless technology (New Radio, acronym NR) To regulate the millimeter wave range of low frequency (FR1, lower than 6GHz) and higher frequency (FR2, higher than 24GHz).
緣於上述目的之達成，本創作的毫米波陣列天線結構包括：一組依陣列編排的輻射體，該組輻射體彼此隔著一間距，所述的輻射體是四邊形元件，其被一槽孔圍成一小面積部，該小面積部不在輻射體的中央位置。 Due to the above object, the millimeter wave array antenna structure of the present invention comprises: a set of radiators arranged in an array, the set of radiators are separated from each other by a spacing, and the radiator is a quadrilateral element, which is slotted by a slot. Enclosed into a small area, the small area is not in the center of the radiator.
該毫米波陣列天線還有多組中和線與二平行的耦合件。其中，該組中和線電連接相鄰二輻射體的角落。而且，該組輻射體在二耦合件之間。 The millimeter wave array antenna also has a plurality of sets of neutralization lines and two parallel coupling members. Wherein, the set of neutralization lines electrically connect the corners of the adjacent two radiators. Moreover, the set of radiators is between the two coupling members.
如此，本創作的毫米波陣列天線中，該組中和線減少毫米波陣列天線彼此間的影響，相對提高隔離度。同時，該槽孔與耦合件產生額外的場型模態，使毫米波陣列天線可操作在25GHz~28GHz的頻寬範圍，亦能擴張到24GHz~30GHz的頻寬範圍。 Thus, in the millimeter wave array antenna of the present invention, the set of neutralization lines reduces the influence of the millimeter wave array antennas on each other and relatively improves the isolation. At the same time, the slot and the coupling element generate additional field mode, so that the millimeter wave array antenna can operate in the bandwidth range of 25 GHz to 28 GHz, and can also expand to the bandwidth range of 24 GHz to 30 GHz.
為使本創作之上述目的、特徵和優點，更加淺顯易懂，茲舉一個或以上較佳的實施例，配合所附的圖式詳細說明如下。 In order to make the above objects, features and advantages of the present invention more comprehensible, one or more preferred embodiments are described in detail with the accompanying drawings.
10‧‧‧毫米波陣列天線 10‧‧‧ millimeter wave array antenna
20‧‧‧板材 20‧‧‧ plates
22‧‧‧第一平面 22‧‧‧ first plane
24‧‧‧第二平面 24‧‧‧ second plane
26‧‧‧電連接柱 26‧‧‧Electrical connection column
30‧‧‧輻射體 30‧‧‧ radiator
302‧‧‧小面積部 302‧‧‧Small area
32‧‧‧中和線 32‧‧‧Neutral Line
322‧‧‧連接段 322‧‧‧Connection section
324、326‧‧‧腳 324, 326‧‧ ‧ feet
34‧‧‧間距 34‧‧‧ spacing
36‧‧‧槽孔 36‧‧‧Slots
361‧‧‧第一隔離部 361‧‧‧First Isolation Department
362‧‧‧第二隔離部 362‧‧‧Second isolation
38‧‧‧耦合件 38‧‧‧Couplings
40‧‧‧接地面 40‧‧‧ Ground plane
42‧‧‧隔離孔 42‧‧‧Isolation hole
44‧‧‧饋入部 44‧‧‧Feeding Department
46‧‧‧火線 46‧‧‧FireWire
A、B、C、D‧‧‧角 A, B, C, D‧‧‧ corner
Eθ‧‧‧第一電場 Eθ‧‧‧First electric field
Eφ‧‧‧第二電場 Eφ‧‧‧second electric field
第1圖是本創作毫米波陣列天線結構較佳實施例的立體圖。 Figure 1 is a perspective view of a preferred embodiment of the present millimeter wave array antenna structure.
第2圖是毫米波陣列天線結構不同視角的立體圖。 Figure 2 is a perspective view of the millimeter wave array antenna structure at different viewing angles.
第3圖是毫米波陣列天線結構去除板材後的局部立體圖。 Figure 3 is a partial perspective view of the millimeter wave array antenna structure after removing the sheet.
第4圖是從Y軸方向觀察X-Z平面的場型模擬圖。 Fig. 4 is a field pattern simulation view of the X-Z plane viewed from the Y-axis direction.
第5圖是從X軸方向觀察Y-Z平面的場型模擬圖。 Fig. 5 is a field pattern simulation view of the Y-Z plane viewed from the X-axis direction.
第6圖是從Z軸方向觀察X-Y平面的場型模擬圖。 Fig. 6 is a field pattern simulation view of the X-Y plane viewed from the Z-axis direction.
第7圖是毫米波陣列天線結構的增益模擬表。 Figure 7 is a gain simulation table of the millimeter wave array antenna structure.
第8圖是毫米波陣列天線結構的反射損失模擬表。 Figure 8 is a reflection loss simulation table of a millimeter wave array antenna structure.
第1圖從第一視角看到毫米波陣列天線10較佳的實施例，該毫米波陣列天線10有一板材20，該板材20是不導電的矩形板，該矩形板的第一平面22設置導電的一組輻射體30、多組中和線32與二耦合件38。去除板材20後，第3圖繪製該輻射體30、中和線32與耦合件38對應一接地面40。 1 shows a preferred embodiment of a millimeter wave array antenna 10 from a first perspective. The millimeter wave array antenna 10 has a plate 20 which is a non-conducting rectangular plate, the first plane 22 of which is electrically conductive. A set of radiators 30, a plurality of sets of neutralization lines 32 and two coupling members 38. After the sheet 20 is removed, the radiator 30, the neutralization line 32 and the coupling member 38 correspond to a ground plane 40 in FIG.
具體而言，二耦合件38印刷在板材20的第一平面22上，二者相互平行的並排在該組輻射體30兩側，每個耦合件38與輻射體30隔著一間距34。在本實施例，該組輻射體30彼此隔著間距34並依線陣列編排。某些實施例，該組輻射體30得依九宮格或圓形陣列編排。 Specifically, the two coupling members 38 are printed on the first plane 22 of the sheet material 20, which are juxtaposed parallel to each other on both sides of the group of radiators 30, and each coupling member 38 is spaced apart from the radiator 30 by a distance 34. In the present embodiment, the set of radiators 30 are arranged in a line array with a spacing 34 therebetween. In some embodiments, the set of radiators 30 are arranged in a nine-square grid or a circular array.
此處所稱的間距34，大約是0.1毫米(mm)。 The spacing 34 referred to herein is approximately 0.1 millimeters (mm).
所述的輻射體30是四邊形體，該四邊形體擁有A、B、C與D四個角。該輻射體30有一槽孔36，所述的槽孔36在輻射體30圍成一小面積部302。在本實施例，該輻射體30是矩形體，該矩形體擁有3.6×5平方毫米(mm2)的面積。某些實施例中，所述的輻射體30是正方形體。 The radiator 30 is a quadrilateral having four corners A, B, C and D. The radiator 30 has a slot 36 which encloses a small area 302 in the radiator 30. In the present embodiment, the radiator 30 is a rectangular body having an area of 3.6 x 5 square millimeters (mm 2 ). In some embodiments, the radiator 30 is a square body.
從毫米波陣列天線10的角度來看，該槽孔36底部被板材20封閉，屬於單方向通往外界的凹槽。從輻射體30的角度來看，所述的槽孔36是上、下相通的孔洞。無論如何，該槽孔36由一第一隔離部361與一組平行的第二隔離部362所組成。其中，該第一隔離部361平行於輻射體30的AB邊與CD邊，而且AB邊到第一隔離部361的距離比第一隔離部361到CD邊的距離還要遠。該組第二隔離部362從第一隔離部361兩端朝向CD 邊的垂直方向延伸，每個第二隔離部362的長度小於第一隔離部361的長度。因此，該小面積部302不在輻射體30的中央位置。 From the perspective of the millimeter wave array antenna 10, the bottom of the slot 36 is closed by the plate 20 and belongs to a groove that leads to the outside in a single direction. From the perspective of the radiator 30, the slots 36 are holes that communicate with each other. In any event, the slot 36 is comprised of a first spacer 361 and a set of parallel second spacers 362. The first isolation portion 361 is parallel to the AB side of the radiator 30 and the CD side, and the distance from the AB side to the first isolation portion 361 is further than the distance from the first isolation portion 361 to the CD side. The second isolation portion 362 of the group faces the CD from both ends of the first isolation portion 361 The vertical direction of the sides extends, and the length of each of the second partitions 362 is smaller than the length of the first partition 361. Therefore, the small-area portion 302 is not at the center of the radiator 30.
該組中和線32是由兩個形狀一致、方向相反的中和線32組成，每個中和線32有一連接段322，該連接段322兩端分別垂直聯結一腳324、326，共同構成U型的線性結構體。該組中和線32之一用兩根腳324、326電連接相鄰二輻射體30的角A、B，另一個中和線32的兩根腳324、326電連接相同的兩個輻射體30的角C、D。因此，該組中和線32位於間距34的兩端，彼此的開口相向。 The set of neutralization lines 32 is composed of two identically-shaped and opposite-direction neutralization lines 32. Each of the neutralization lines 32 has a connecting section 322. The two ends of the connecting section 322 are vertically coupled with a foot 324 and 326, respectively. U-shaped linear structure. One of the set of neutralization lines 32 electrically connects the corners A, B of the adjacent two radiators 30 with two legs 324, 326, and the two legs 324, 326 of the other neutralization line 32 electrically connect the same two radiators. Angles C, D of 30. Thus, the set of neutralization lines 32 are located at opposite ends of the spacing 34, with the openings of each other facing each other.
第2圖從第二視角看到毫米波陣列天線10的具體結構，該板材20的第二平面24平行於第一平面，在第二平面24印刷一接地面40與一組饋入部44。所述的接地面40是導電的，其有數量等於該組饋入部44的隔離孔42，該隔離孔42是容積大於饋入部44體積或面積的矩形孔，該矩形孔位於輻射體30(見第1圖)的下方。該饋入部44是矩形片體，該矩形片體在隔離孔42中。透過一火線46將饋入部44的短邊與接地面40連在一起，該饋入部44其餘的部分不觸及接地面40圍成隔離孔42的壁面。 2 shows the specific structure of the millimeter wave array antenna 10 from a second perspective. The second plane 24 of the sheet 20 is parallel to the first plane, and a ground plane 40 and a set of feed portions 44 are printed on the second plane 24. The ground plane 40 is electrically conductive and has an equal number of isolation holes 42 equal to the set of feed portions 44. The isolation holes 42 are rectangular holes having a volume larger than the volume or area of the feed portion 44, and the rectangular holes are located in the radiator 30 (see Below the first picture). The feed portion 44 is a rectangular sheet body that is in the isolation hole 42. The short side of the feed portion 44 is connected to the ground plane 40 through a fire line 46, and the remaining portion of the feed portion 44 does not touch the ground surface 40 to enclose the wall surface of the isolation hole 42.
配合第3圖來看，所述的板材20(參閱第1圖)被二排電連接柱26通過。第一排電連接柱26數量等於小面積部302的數量，每根電連接柱26二端分別電連接小面積部302與饋入部44。第二排外側的兩根電連接柱26用來連接耦合件38與接地面40，中間的電連接柱26以兩根為一組，每組電連接柱26分列於火線46兩旁，用來連接單一輻射體30的角C、D與接地面40。 As seen in Fig. 3, the sheet material 20 (see Fig. 1) is passed through the two rows of electrical connection posts 26. The number of the first row of electrical connection posts 26 is equal to the number of small-area portions 302, and the two ends of each of the electrical connection posts 26 are electrically connected to the small-area portion 302 and the feed-in portion 44, respectively. The two electrical connection posts 26 on the outer side of the second row are used to connect the coupling member 38 and the ground plane 40. The intermediate electrical connection posts 26 are arranged in two groups. Each set of electrical connection posts 26 is arranged on both sides of the fire line 46 for The corners C, D of the single radiator 30 are connected to the ground plane 40.
回頭看到的第1圖，本實施例界定板材20短邊的平行方向為正X軸方向，長邊的平行方向視為正Y軸方向，以致第一平面22充當XY平面，而且垂直第一平面22且指向輻射體30的方向作為正Z軸方向。 Referring back to Fig. 1, this embodiment defines that the parallel direction of the short side of the sheet material 20 is the positive X-axis direction, and the parallel direction of the long side is regarded as the positive Y-axis direction, so that the first plane 22 serves as the XY plane and is vertically first. The plane 22 and the direction directed to the radiator 30 are taken as the positive Z-axis direction.
如第4~6圖所示，所述的毫米波陣列天線實現波束操控或波束成形(Beamforming)，表現X-Z平面、Y-Z平面與X-Y平面中，一第一電場Eθ和一第二電場Eφ的輻射方向。 As shown in FIGS. 4-6, the millimeter wave array antenna realizes beam steering or beamforming, and exhibits radiation of a first electric field Eθ and a second electric field Eφ in the XZ plane, the YZ plane, and the XY plane. direction.
在第7圖中，頻率約26.6GHz時，所述的毫米波陣列天線增益為10dBi。 In Fig. 7, the frequency of the millimeter wave array antenna is 10 dBi at a frequency of about 26.6 GHz.
如第8圖所示，該毫米波陣列天線之10dB重疊頻寬約為5.2GHz(25.2~30.4GHz)。因此，該毫米波陣列天線可操作在25GHz~28GHz的頻寬範圍，亦能擴張到24GHz~30GHz的頻寬範圍。 As shown in Fig. 8, the 10 dB overlap bandwidth of the millimeter wave array antenna is about 5.2 GHz (25.2 to 30.4 GHz). Therefore, the millimeter wave array antenna can operate in the bandwidth range of 25 GHz to 28 GHz, and can also be expanded to a bandwidth ranging from 24 GHz to 30 GHz.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI792268B (en) * | 2020-04-30 | 2023-02-11 | 大陸商深圳市睿德通訊科技有限公司 | Millimeter wave and non-millimeter wave antenna integrated module system and electronic equipment |
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| TWI792268B (en) * | 2020-04-30 | 2023-02-11 | 大陸商深圳市睿德通訊科技有限公司 | Millimeter wave and non-millimeter wave antenna integrated module system and electronic equipment |
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