TW202315223A - Antenna unit and array antenna - Google Patents

Antenna unit and array antenna Download PDF

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TW202315223A
TW202315223A TW110136362A TW110136362A TW202315223A TW 202315223 A TW202315223 A TW 202315223A TW 110136362 A TW110136362 A TW 110136362A TW 110136362 A TW110136362 A TW 110136362A TW 202315223 A TW202315223 A TW 202315223A
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layer
antenna
antenna unit
dielectric layer
feed point
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TWI819386B (en
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梁家銘
陳文元
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群邁通訊股份有限公司
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Abstract

The invention relates to an antenna unit and an array antenna. The antenna unit comprises a radiating layer, a first dielectric layer, a first grounding layer, a second dielectric layer, a second grounding layer and a plurality of conductive pillars. The first dielectric layer, the first grounding layer, the second dielectric layer and the second grounding layer are stacked in turn. The radiating layer is arranged on the side of the first dielectric layer away from the first grounding layer. The radiating layer is provided with a feeding point to feed the antenna unit. The first grounding layer is provided with a slot corresponding to the radiating layer. The conductive pillar is arranged along the peripheral edge of the slot and penetrate the second dielectric layer, so that its two ends are connected with the first grounding layer and the second grounding layer respectively. The antenna unit provided by this invention has good directivity and high antenna gain.

Description

天線單元及陣列天線Antenna unit and array antenna

本發明涉及天線領域,尤其涉及一種天線單元及陣列天線。The invention relates to the field of antennas, in particular to an antenna unit and an array antenna.

低軌道衛星通訊能夠增加偏遠地區之無線通訊覆蓋率。然而由於低軌道衛星於太空中移動之速度極為快速,使得習知天線與低軌道衛星通訊過程中,切換過程容易出錯,通訊效果較差,甚至可能出現斷線。Low-orbit satellite communication can increase wireless communication coverage in remote areas. However, due to the extremely fast movement of low-orbit satellites in space, in the process of communication between conventional antennas and low-orbit satellites, the switching process is prone to errors, the communication effect is poor, and even disconnection may occur.

鑒於以上內容,有必要提供一種天線單元及陣列天線,以實現與低軌道衛星之通訊。In view of the above, it is necessary to provide an antenna unit and an array antenna to realize communication with low-orbit satellites.

本申請一方面提供一種天線單元,應用於無線通訊裝置。所述天線單元包括輻射層、第一介質層、第一接地層、第二介質層、第二接地層及複數導柱,所述第一介質層,第一接地層,第二介質層,第二接地層依次層疊設置,所述輻射層設置於所述第一介質層遠離所述第一接地層之表面,所述輻射層設置有饋點,用以為所述天線單元饋電,所述第一接地層對應所述輻射層開設有槽孔,所述導柱沿所述槽孔之周沿設置,且貫穿所述第二介質層,使得其兩端分別連接所述第一接地層及所述第二接地層。One aspect of the present application provides an antenna unit applied to a wireless communication device. The antenna unit includes a radiation layer, a first dielectric layer, a first ground layer, a second dielectric layer, a second ground layer and a plurality of guide posts, the first dielectric layer, the first ground layer, the second dielectric layer, the second Two ground layers are stacked in sequence, the radiation layer is disposed on the surface of the first dielectric layer away from the first ground layer, the radiation layer is provided with a feed point for feeding the antenna unit, the second A ground layer is provided with a slot corresponding to the radiation layer, and the guide post is arranged along the periphery of the slot and penetrates through the second dielectric layer so that its two ends are respectively connected to the first ground layer and the Describe the second ground plane.

本申請另一方面還提供一種陣列天線,包括複數上述天線單元。Another aspect of the present application further provides an array antenna, including a plurality of the above-mentioned antenna units.

本發明提供之天線單元及陣列天線,具有良好之方向性及天線增益,可實現快速波束切換,從而提高與低軌道衛星通訊時之天線性能。The antenna unit and the array antenna provided by the present invention have good directivity and antenna gain, and can realize fast beam switching, thereby improving the performance of the antenna when communicating with low-orbit satellites.

為使本申請實施例之目的、技術方案與優點更加清楚,下面將結合本申請實施例中之附圖,對本申請實施例中之技術方案進行清楚、完整地描述,顯然,所描述之實施例是本申請一部分實施例,而不是全部之實施例。In order to make the purpose, technical solutions and advantages of the embodiments of the application clearer, the technical solutions in the embodiments of the application will be clearly and completely described below in conjunction with the drawings in the embodiments of the application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them.

可理解,當一個元件被稱為“電連接”另一個元件,它可直接於另一個元件上或者亦可存於居中之元件。當一個元件被認為是“電連接”另一個元件,它可是接觸連接,例如,可是導線連接之方式,亦可是非接觸式連接,例如,可是非接觸式耦合之方式。It will be understood that when an element is referred to as being "electrically connected" to another element, it can be directly on the other element or intervening elements may also be present. When an element is considered to be "electrically connected" to another element, it may be connected by contact, eg, by wire connection, or by non-contact connection, eg, by non-contact coupling.

可理解,本申請實施例中“至少一個”是指一個或者多個,多個是指兩個或兩個以上。除非另有定義,本文所使用之所有之技術與科學術語與屬於本申請中之技術領域之技術人員通常理解之含義相同。本申請之說明書中所使用之術語僅是為描述具體之實施例,不是旨在於限制本申請申請。It can be understood that "at least one" in the embodiments of the present application refers to one or more, and multiple refers to two or more. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of this application. The terms used in the description of the present application are only used to describe specific embodiments, and are not intended to limit the present application.

可理解,本申請實施例中,“第一”、“第二”等詞彙,僅用於區分描述之目的,而不能理解為指示或暗示相對重要性,亦不能理解為指示或暗示順序。限定有“第一”、“第二”之特徵可明示或者隱含地包括一個或者更多個所述特徵。於本申請實施例之描述中,“示例性的”或者“例如”等詞用於表示作例子、例證或說明。本申請實施例中被描述為“示例性的”或者“例如”之任何實施例或設計方案不應被解釋為比其它實施例或設計方案更優選或更具優勢。確切而言,使用“示例性的”或者“例如”等詞旨於以具體方式呈現相關概念。It can be understood that in the embodiments of the present application, words such as "first" and "second" are only used for the purpose of distinguishing and describing, and cannot be interpreted as indicating or implying relative importance, nor can they be understood as indicating or implying order. Features defined as "first" and "second" may explicitly or implicitly include one or more of said features. In the description of the embodiments of the present application, words such as "exemplary" or "for example" are used as examples, illustrations or illustrations. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of the present application shall not be interpreted as being more preferred or more advantageous than other embodiments or design schemes. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete manner.

可理解,本申請實施例中,術語“高度”是指於垂直於參考地層之方向上之投影長度。術語“中心”、“上”、“下”、“前”、“後”、“左”、“右”、“豎直”、“水平”、“頂”、“底”、“內”、“外”等指示之方位或位置關係為基於附圖所示之方位或位置關係,僅是為便於描述本申請與簡化描述,而不是指示或暗示所指之裝置或元件必須具有特定之方位、以特定之方位構造與操作,因此不能理解為對本申請之限制。It can be understood that, in the embodiments of the present application, the term "height" refers to the projected length in the direction perpendicular to the reference formation. The terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, Constructed and operated in a particular orientation and therefore should not be construed as limiting the application.

請參閱圖1,本申請一實施例提供一種天線單元10。複數天線單元10成陣列地設置,以形成陣列天線100。可理解,天線單元10或陣列天線100可應用於行動電話、平板電腦、個人數位助理(personal digital assistant,PDA)、客戶前置設備(Customer Premise Equipment,CPE)、電視等需要設置天線之無線通訊裝置200中,用以發射、接收無線電波以傳遞、交換無線訊號。Referring to FIG. 1 , an embodiment of the present application provides an antenna unit 10 . A plurality of antenna units 10 are arranged in an array to form an array antenna 100 . It can be understood that the antenna unit 10 or the array antenna 100 can be applied to mobile phones, tablet computers, personal digital assistants (personal digital assistant, PDA), customer pre-equipment (Customer Premise Equipment, CPE), TV and other wireless communications that require antennas In the device 200, it is used to transmit and receive radio waves to transmit and exchange wireless signals.

可理解,所述無線通訊裝置200可採用以下一種或多種通訊技術:藍牙(bluetooth,BT)通訊技術、全球定位系統(global positioning system,GPS)通訊技術、無線保真(wireless fidelity,Wi-Fi)通訊技術、全球移動通訊系統(global system for mobile communications,GSM)通訊技術、寬頻碼分多址(wideband code division multiple access,WCDMA)通訊技術、長期演進(long term evolution,LTE)通訊技術、5G通訊技術、SUB-6G通訊技術、低軌道衛星通訊以及未來其他通訊技術等。It can be understood that the wireless communication device 200 may use one or more of the following communication technologies: Bluetooth (bluetooth, BT) communication technology, global positioning system (global positioning system, GPS) communication technology, wireless fidelity (wireless fidelity, Wi-Fi) ) communication technology, global system for mobile communications (GSM) communication technology, wideband code division multiple access (WCDMA) communication technology, long term evolution (LTE) communication technology, 5G Communication technology, SUB-6G communication technology, low-orbit satellite communication and other future communication technologies, etc.

請一併參閱圖2及圖3,所述天線單元10包括輻射層11、第一介質層12、第一接地層13、第二介質層14、第二接地層15及複數導柱16。其中,所述第一介質層12,第一接地層13,第二介質層14及第二接地層15依次層疊設置。所述輻射層11設置於所述第一介質層12遠離所述第一接地層13之一側。Please refer to FIG. 2 and FIG. 3 together. The antenna unit 10 includes a radiation layer 11 , a first dielectric layer 12 , a first ground layer 13 , a second dielectric layer 14 , a second ground layer 15 and a plurality of guide posts 16 . Wherein, the first dielectric layer 12 , the first ground layer 13 , the second dielectric layer 14 and the second ground layer 15 are sequentially stacked. The radiation layer 11 is disposed on a side of the first dielectric layer 12 away from the first ground layer 13 .

請繼續參閱圖4及圖5,所述輻射層11設置有饋點111,用以為所述天線單元10饋電。所述輻射層11由導電材料製成。例如,所述輻射層11可由金屬材料製成。於本實施例中,所述輻射層11為一大致呈多邊形之輻射貼片,可由一正方形輻射貼片沿對角線a切去其中一對角得到。Please continue to refer to FIG. 4 and FIG. 5 , the radiation layer 11 is provided with a feed point 111 for feeding the antenna unit 10 . The radiation layer 11 is made of conductive material. For example, the radiation layer 11 can be made of metal material. In this embodiment, the radiation layer 11 is a substantially polygonal radiation patch, which can be obtained by cutting off a pair of corners of a square radiation patch along a diagonal line a.

於本實施例中,所述饋點111包括第一饋點112及第二饋點113。其中,第一饋點112及第二饋點113均設置於所述輻射層11之另一對角線b上,且第一饋點112與第二饋點113以所述輻射層11之中心O於對角線b上對稱分佈。In this embodiment, the feed point 111 includes a first feed point 112 and a second feed point 113 . Wherein, the first feed point 112 and the second feed point 113 are both arranged on the other diagonal line b of the radiation layer 11, and the first feed point 112 and the second feed point 113 are located at the center of the radiation layer 11 O is distributed symmetrically on the diagonal b.

可理解,圓極化是指當電磁波之電場大小不變,方向隨時間變化,電場向量末端之軌跡於垂直於傳播方向之平面上投影是一個圓。因此,為接收及/或發射圓極化電磁波,使於所述輻射層11中流動之電流隨著時間經過而旋轉極為重要。為使於所述輻射層11中流動之電流旋轉,需使電流於正交之方向上流動並產生具有90度之相位差之激勵。It can be understood that circular polarization means that when the magnitude of the electric field of the electromagnetic wave is constant and the direction changes with time, the projection of the trajectory of the end of the electric field vector on a plane perpendicular to the direction of propagation is a circle. Therefore, in order to receive and/or transmit circularly polarized electromagnetic waves, it is very important to rotate the current flowing in the radiation layer 11 with the lapse of time. In order to rotate the current flowing in the radiation layer 11, it is necessary to make the current flow in the orthogonal direction and generate excitation with a phase difference of 90 degrees.

請一併參閱圖5及圖6,可理解,於本實施例中,所述第一饋點112與所述第二饋點113可分別於所述輻射層11上產生正交之第一等效電流路徑F1及第二等效電流路徑F2。且由於所述輻射層11沿對角線a切去對角,如此,可藉由調整切掉之對角之面積之大小,調整第一等效電流路徑F1與第二等效電流路徑F2產生之輻射訊號之相位差。Please refer to FIG. 5 and FIG. 6 together. It can be understood that, in this embodiment, the first feed point 112 and the second feed point 113 can respectively generate orthogonal first-order feed points on the radiation layer 11. The effective current path F1 and the second equivalent current path F2. And because the radiating layer 11 cuts off the diagonal along the diagonal line a, by adjusting the size of the area of the cut diagonal, the generation of the first equivalent current path F1 and the second equivalent current path F2 can be adjusted. The phase difference of the radiation signal.

於本實施例中,所述第一饋點112藉由饋入電流至所述天線單元10之輻射層11,以使所述輻射層11產生左旋圓極化電磁波或右旋圓極化電磁波兩者中之一種。所述第二饋點113藉由饋入電流至所述天線單元10之輻射層11,以使所述輻射層11產生左旋圓極化電磁波或右旋圓極化電磁波兩者中之另一種。In this embodiment, the first feeding point 112 feeds current to the radiation layer 11 of the antenna unit 10, so that the radiation layer 11 generates left-handed circularly polarized electromagnetic waves or right-handed circularly polarized electromagnetic waves. one of those. The second feeding point 113 feeds current into the radiation layer 11 of the antenna unit 10 , so that the radiation layer 11 generates the other of left-handed circularly polarized electromagnetic waves or right-handed circularly polarized electromagnetic waves.

可理解,於一些實施例中,所述第一饋點112及所述第二饋點113同時饋入電流至所述輻射層11,以使所述輻射層11同時產生左旋圓極化電磁波及右旋圓極化電磁波。於一些實施例中,所述第一饋點112及所述第二饋點113兩個饋點中,僅有一個饋點饋入電流至所述輻射層11,以使所述輻射層11單獨產生左旋圓極化電磁波或單獨產生右旋圓極化電磁波。It can be understood that, in some embodiments, the first feed point 112 and the second feed point 113 feed current into the radiation layer 11 at the same time, so that the radiation layer 11 simultaneously generates left-handed circularly polarized electromagnetic waves and Right-handed circularly polarized electromagnetic waves. In some embodiments, among the two feed points of the first feed point 112 and the second feed point 113, only one feed point feeds current into the radiation layer 11, so that the radiation layer 11 is independently Generate left-handed circularly polarized electromagnetic waves or generate right-handed circularly polarized electromagnetic waves alone.

請一併參閱圖2及圖5,所述第一介質層12之面積大於所述輻射層11之面積,所述第一介質層12之高度小於所述輻射層11之高度。於一些實施例中,所述第一介質層12可由金屬材料、陶瓷材料或有機材料等介電材料製成。於本實施例中,所述第一介質層12大致呈方形。且所述第一介質層12之材料為有機基板中之玻璃纖維材料,即所述第一介質層12為一FR-4板。Please refer to FIG. 2 and FIG. 5 together, the area of the first dielectric layer 12 is larger than the area of the radiation layer 11 , and the height of the first dielectric layer 12 is smaller than the height of the radiation layer 11 . In some embodiments, the first dielectric layer 12 may be made of dielectric materials such as metal materials, ceramic materials or organic materials. In this embodiment, the first dielectric layer 12 is roughly square. And the material of the first dielectric layer 12 is the glass fiber material in the organic substrate, that is, the first dielectric layer 12 is an FR-4 board.

所述第一接地層13設置於所述第一介質層12遠離所述輻射層11之表面。可理解,所述第一接地層13由導電材料製成,例如金屬材料。於本實施例中,所述第一接地層13亦大致呈方形,且面積與所述第一介質層12之面積大致相等。The first ground layer 13 is disposed on the surface of the first dielectric layer 12 away from the radiation layer 11 . It can be understood that the first ground layer 13 is made of conductive material, such as metal material. In this embodiment, the first ground layer 13 is also approximately square, and its area is approximately equal to that of the first dielectric layer 12 .

所述第一介質層12及所述第一接地層13對應所述輻射層11還開設有槽孔131。於所述天線單元10之堆疊方向上(即Z方向),所述槽孔131之投影面積覆蓋所述輻射層11之投影面積。於本實施例中,所述槽孔131大致呈圓形。The first dielectric layer 12 and the first ground layer 13 are also provided with slots 131 corresponding to the radiation layer 11 . In the stacking direction of the antenna units 10 (ie, the Z direction), the projected area of the slot 131 covers the projected area of the radiation layer 11 . In this embodiment, the slot 131 is substantially circular.

於本實施例中,所述槽孔131大致開設於所述第一介質層12與所述第一接地層13之中心。如此,所述輻射層11大致對應設置於所述第一介質層12及所述第一接地層13之中心位置。In this embodiment, the slot hole 131 is roughly opened at the center of the first dielectric layer 12 and the first ground layer 13 . In this way, the radiation layer 11 is substantially correspondingly disposed at the center of the first dielectric layer 12 and the first ground layer 13 .

所述第二介質層14設置於所述第一接地層13遠離所述第一介質層12之一側,且與所述第一接地層13間隔設置。所述第二介質層14大致呈方形。可理解,所述第二介質層14亦可由金屬材料、陶瓷材料或有機材料製成。於本實施例中,所述第二介質層14與所述第一介質層12之組成材料與面積相同,於此不再贅述。The second dielectric layer 14 is disposed on a side of the first ground layer 13 away from the first dielectric layer 12 and spaced apart from the first ground layer 13 . The second dielectric layer 14 is roughly square. It can be understood that the second dielectric layer 14 can also be made of metal material, ceramic material or organic material. In this embodiment, the second dielectric layer 14 has the same material and area as the first dielectric layer 12 , which will not be repeated here.

所述第二接地層15設置於所述第二介質層14遠離所述第一接地層13之表面。於所述天線單元10之堆疊方向上,所述第二接地層15之投影面積與所述第一接地層13之投影面積至少部分重合。可理解,所述第二接地層15亦由導電材料製成。The second ground layer 15 is disposed on the surface of the second dielectric layer 14 away from the first ground layer 13 . In the stacking direction of the antenna units 10 , the projected area of the second ground layer 15 and the projected area of the first ground layer 13 at least partially overlap. It can be understood that the second ground layer 15 is also made of conductive material.

複數所述導柱16沿所述槽孔131之周沿間隔設置,且貫穿所述第二介質層14,使得其兩端分別連接所述第一接地層13及所述第二接地層15。如此,複數所述導柱16與所述第一接地層13及所述第二接地層15共同形成腔體,以使所述輻射層11之輻射方向更集中,從而增強所述天線單元10之增益值。A plurality of guide pillars 16 are arranged at intervals along the periphery of the slot 131 and penetrate through the second dielectric layer 14 such that two ends thereof are respectively connected to the first ground layer 13 and the second ground layer 15 . In this way, the plurality of guide posts 16 form a cavity together with the first ground layer 13 and the second ground layer 15, so that the radiation direction of the radiation layer 11 is more concentrated, thereby enhancing the stability of the antenna unit 10. gain value.

可理解,天線單元10還包括饋入源(圖未示),用於電連接至第一饋點112及第二饋點113,為所述輻射層11饋入電流。請再次參閱圖3,於本實施例中,所述天線單元10還設置有兩連接部114。所述饋入源設置於所述第二接地層15遠離所述第二介質層14之一側。兩所述連接部114均穿過所述第二接地層15、所述第二介質層14及所述槽孔131。其中一所述連接部114一端連接至所述饋入源,另一端電連接至所述第一饋點112。另一所述連接部114一端連接至所述饋入源,另一端電連接至所述第二饋點113。如此,所述饋入源藉由兩所述連接部114分別電連接至所述第一饋點112及所述第二饋點113,用於為所述輻射層11饋入電流。It can be understood that the antenna unit 10 further includes a feed source (not shown in the figure), which is used to electrically connect to the first feed point 112 and the second feed point 113 to feed current into the radiation layer 11 . Please refer to FIG. 3 again. In this embodiment, the antenna unit 10 is further provided with two connecting portions 114 . The feeding source is disposed on a side of the second ground layer 15 away from the second dielectric layer 14 . Both the connecting portions 114 pass through the second ground layer 15 , the second dielectric layer 14 and the slot 131 . One end of one of the connecting parts 114 is connected to the feeding source, and the other end is electrically connected to the first feeding point 112 . One end of the other connecting portion 114 is connected to the feeding source, and the other end is electrically connected to the second feeding point 113 . In this way, the feeding source is respectively electrically connected to the first feeding point 112 and the second feeding point 113 through the two connecting parts 114 for feeding current into the radiation layer 11 .

可理解,所述輻射層11不局限於圖2所示之形狀,於其他實施例中,所述輻射層11亦可為其他多邊形之形狀,以使所述第一饋點112及所述第二饋點113饋入電流時,於所述輻射層11產生不同長度之電流路徑。例如,請參閱圖7A,所述輻射層11亦可於方形輻射貼片點之對角線上之兩角增加延伸部132形成;請參閱7B,所述輻射層11亦可呈花瓣形,由方形輻射貼片沿各邊之中線挖設一段距離形成。It can be understood that the radiation layer 11 is not limited to the shape shown in FIG. When the two feed points 113 feed current, current paths of different lengths are generated in the radiation layer 11 . For example, referring to FIG. 7A, the radiation layer 11 can also be formed by adding extensions 132 at the two corners on the diagonal of the square radiation patch point; referring to FIG. 7B, the radiation layer 11 can also be petal-shaped, formed by The radiation patch is formed by digging a certain distance along the midline of each side.

可理解,於其他實施例中,所述槽孔131亦可為其他形狀。例如,請參閱圖8,所述槽孔131亦可呈方形。It can be understood that, in other embodiments, the slot hole 131 may also have other shapes. For example, please refer to FIG. 8 , the slot 131 can also be square.

可理解,本申請提供之天線單元10,藉由於輻射層11上切去兩對角,且設置第一饋點112及第二饋點113,可輻射左旋圓極化電磁波及/或右旋圓極化電磁波,以減少大氣電離層對輻射訊號之影響,從而更好地接收衛星訊號。再者,由於習知衛星之發射天線可產生左旋圓極化電磁波或右旋圓極化電磁波,如此,本申請提供之天線單元10可適用於多種衛星類型,具有廣闊之應用場景。進一步地,天線單元10還藉由構造間隔設置之第一接地層13及第二接地層15,且第一接地層13與第二接地層15藉由複數所述導柱16連接,從而於輻射層11之一側形成腔體,以使輻射層11之輻射方向更加集中,有效提高所述天線單元10之增益。It can be understood that the antenna unit 10 provided by the present application can radiate left-handed circularly polarized electromagnetic waves and/or right-handed circularly polarized electromagnetic waves by cutting off two opposite corners on the radiation layer 11 and setting the first feed point 112 and the second feed point 113. Polarized electromagnetic waves to reduce the impact of the atmospheric ionosphere on radiation signals, so as to better receive satellite signals. Furthermore, since conventional satellite transmitting antennas can generate left-handed circularly polarized electromagnetic waves or right-handed circularly polarized electromagnetic waves, the antenna unit 10 provided by the present application can be applied to various types of satellites and has wide application scenarios. Further, the antenna unit 10 is also configured with the first ground layer 13 and the second ground layer 15 arranged at intervals, and the first ground layer 13 and the second ground layer 15 are connected by a plurality of guide posts 16, so that the radiation A cavity is formed on one side of the layer 11, so that the radiation direction of the radiation layer 11 is more concentrated, and the gain of the antenna unit 10 is effectively improved.

請一併參閱圖1及圖9,本申請還提供一種陣列天線100,可與低軌道衛星通訊。所述陣列天線100包括複數所述天線單元10及相位控制模組20。可理解,複數所述天線單元10排列設置,形成一天線陣列。所述相位控制模組20電連接至複數所述天線陣列,用於控制所述陣列天線100之波束方向。Please refer to FIG. 1 and FIG. 9 together. The present application also provides an array antenna 100 capable of communicating with low-orbit satellites. The array antenna 100 includes a plurality of antenna units 10 and a phase control module 20 . It can be understood that the plurality of antenna units 10 are arranged in a row to form an antenna array. The phase control module 20 is electrically connected to a plurality of the antenna arrays for controlling the beam direction of the array antenna 100 .

於所述陣列天線100中,每一所述天線單元10與另一所述天線單元10間隔相等距離或互相接觸。於本實施例中,複數天線單元10排列形成一大致呈方形之天線陣列。In the array antenna 100 , each of the antenna units 10 is spaced at an equal distance from another antenna unit 10 or is in contact with each other. In this embodiment, a plurality of antenna units 10 are arranged to form a substantially square antenna array.

於本實施例中,所述相位控制模組20設置於所述第二接地層15遠離所述第二介質層14之一側。所述相位控制模組20包括複數控制單元21。每一所述控制單元21分別電連接至複數所述天線單元10,用於分組控制所述天線單元10激發不同頻段及/或不同相位之電磁波。可理解,於一些實施例中,控制單元21可為相位控制晶片,用於控制饋入所述輻射層11之電流之相位。In this embodiment, the phase control module 20 is disposed on a side of the second ground layer 15 away from the second dielectric layer 14 . The phase control module 20 includes a plurality of control units 21 . Each of the control units 21 is respectively electrically connected to a plurality of the antenna units 10 for controlling the antenna units 10 in groups to excite electromagnetic waves of different frequency bands and/or different phases. It can be understood that, in some embodiments, the control unit 21 can be a phase control chip for controlling the phase of the current fed into the radiation layer 11 .

可理解,所述陣列天線100之相位控制模組20還包括複數收發電路22。所述控制單元21電連接至所述收發電路22,所述收發電路22藉由所述連接部114電連接至所述天線單元10之饋點111。所述控制單元21藉由控制饋入所述天線單元10之電流之相位,以控制所述陣列天線100之相位。可理解,所述收發電路22可包括一些射頻元件,例如放大器、合路器等。It can be understood that the phase control module 20 of the array antenna 100 further includes a complex transceiver circuit 22 . The control unit 21 is electrically connected to the transceiver circuit 22 , and the transceiver circuit 22 is electrically connected to the feed point 111 of the antenna unit 10 through the connecting portion 114 . The control unit 21 controls the phase of the array antenna 100 by controlling the phase of the current fed into the antenna unit 10 . It can be understood that the transceiver circuit 22 may include some radio frequency components, such as amplifiers, combiners and the like.

請繼續參閱圖10及圖11,以說明所述陣列天線100之工作過程。Please continue to refer to FIG. 10 and FIG. 11 to illustrate the working process of the array antenna 100 .

可理解,於一實施例中,複數所述天線單元10組成之天線陣列,可進一步劃分為第一天線單元組101、第二天線單元組102、第三天線單元組103及第四天線單元組104。所述陣列天線100中之複數收發電路22包括第一收發電路22a、第二收發電路22b、第三收發電路22c及第四收發電路22d。所述第一天線單元組101、所述第二天線單元組102、所述第三天線單元組103及所述第四天線單元組104分別與所述第一收發電路22a、所述第二收發電路22b、所述第三收發電路22c及所述第四收發電路22d一一對應連接。It can be understood that, in one embodiment, the antenna array composed of a plurality of antenna units 10 can be further divided into a first antenna unit group 101, a second antenna unit group 102, a third antenna unit group 103 and a fourth antenna Cell group 104. The plurality of transceiver circuits 22 in the array antenna 100 includes a first transceiver circuit 22a, a second transceiver circuit 22b, a third transceiver circuit 22c and a fourth transceiver circuit 22d. The first antenna unit group 101, the second antenna unit group 102, the third antenna unit group 103, and the fourth antenna unit group 104 are respectively connected to the first transceiver circuit 22a, the first antenna unit group The two transceiver circuits 22b, the third transceiver circuit 22c and the fourth transceiver circuit 22d are connected in a one-to-one correspondence.

於一些實施例中,所述控制單元21藉由控制所述第一收發電路22a饋入對應之電流,以控制所述第一天線單元組101輻射第一頻段之具有第一相位之電磁波;所述控制單元21藉由控制所述第二收發電路22b饋入對應之電流,以控制所述第二天線單元組102輻射第一頻段之具有第二相位之電磁波;所述控制單元21藉由控制所述第三收發電路22c饋入對應之電流,以控制所述第三天線單元組103輻射第二頻段之具有第三相位之電磁波;所述控制單元21藉由控制所述第四收發電路22d饋入對應之電流,以控制所述第四天線單元組104輻射第二頻段之具有第四相位之電磁波。如此,所述陣列天線100於所述控制單元21之控制下,可產生輻射方向之旋轉,從而有利於所述陣列天線100靈活快速地進行波束追蹤及波束切換。In some embodiments, the control unit 21 controls the first antenna unit group 101 to radiate electromagnetic waves with a first phase in a first frequency band by controlling the first transceiver circuit 22a to feed a corresponding current; The control unit 21 controls the second antenna unit group 102 to radiate electromagnetic waves with a second phase in the first frequency band by controlling the second transceiver circuit 22b to feed corresponding currents; By controlling the third transceiver circuit 22c to feed the corresponding current to control the third antenna unit group 103 to radiate electromagnetic waves with a third phase in the second frequency band; the control unit 21 controls the fourth transceiver The circuit 22d feeds a corresponding current to control the fourth antenna unit group 104 to radiate electromagnetic waves with a fourth phase in the second frequency band. In this way, the array antenna 100 can rotate the radiation direction under the control of the control unit 21 , so that the array antenna 100 can flexibly and quickly perform beam tracking and beam switching.

可理解,本申請不局限所述陣列天線100中之天線單元組及收發電路之數量。且所述陣列天線100中之天線單元組之劃分方式不局限於圖10所示之劃分方式。可理解,每一天線單元組之數量可相同,亦可不相同。本領域技術人員可根據實際需要決定天線單元組之劃分,及天線單元組與對應之收發電路之數量。It can be understood that the present application is not limited to the number of antenna unit groups and transceiver circuits in the array antenna 100 . And the division method of the antenna unit groups in the array antenna 100 is not limited to the division method shown in FIG. 10 . It can be understood that the number of each antenna unit group can be the same or different. Those skilled in the art can determine the division of antenna unit groups and the number of antenna unit groups and corresponding transceiver circuits according to actual needs.

請繼續參閱圖12,圖12為陣列天線100於一實施例中之2D輻射場型圖。由圖12可看出,所述陣列天線100之波束方向較集中,有利於提高陣列天線100之天線增益。Please continue to refer to FIG. 12 , which is a 2D radiation pattern diagram of the array antenna 100 in an embodiment. It can be seen from FIG. 12 that the beam direction of the array antenna 100 is relatively concentrated, which is beneficial to increase the antenna gain of the array antenna 100 .

可理解,於其他實施例中,所述控制單元21可控制陣列天線100輻射28GHz-39Ghz頻段之輻射訊號。即所述控制單元21可控制陣列天線100輻射Ku頻段之輻射訊號,以與低軌道衛星進行通訊。可理解,於其他實施例中,所述控制單元21還可控制陣列天線100輻射其他毫米波頻段之訊號。It can be understood that, in other embodiments, the control unit 21 can control the array antenna 100 to radiate radiation signals in the 28GHz-39Ghz frequency band. That is, the control unit 21 can control the array antenna 100 to radiate the radiation signal of the Ku frequency band, so as to communicate with the low-orbit satellite. It can be understood that in other embodiments, the control unit 21 can also control the array antenna 100 to radiate signals of other millimeter wave frequency bands.

可理解,於其他實施例中,所述陣列天線100亦可呈其他形狀。例如,請參閱圖13A及圖13B,於其他實施例中,所述陣列天線100亦可呈多邊形或菱形。It can be understood that in other embodiments, the array antenna 100 may also have other shapes. For example, please refer to FIG. 13A and FIG. 13B , in other embodiments, the array antenna 100 may also be in the shape of a polygon or a rhombus.

可理解,本申請提供之陣列天線100,可應用於無線通訊裝置200上。所述陣列天線100包括由複數天線單元10形成之天線陣列,藉由相位控制模組20對陣列天線100之控制,使陣列天線100快速調整訊號波束之方向,從而於與低軌道衛星之通訊過程中實現快速波束方向切換,提高無線通訊裝置200與低軌道衛星之通訊效果。It can be understood that the array antenna 100 provided in this application can be applied to the wireless communication device 200 . The array antenna 100 includes an antenna array formed by a plurality of antenna units 10. Through the control of the array antenna 100 by the phase control module 20, the array antenna 100 can quickly adjust the direction of the signal beam, so that the communication process with the low-orbit satellite In this way, fast beam direction switching can be realized, and the communication effect between the wireless communication device 200 and the low-orbit satellite can be improved.

最後應說明,以上實施例僅用以說明本發明之技術方案而非限制,儘管參照較佳實施例對本發明進行了詳細說明,本領域具有通常技藝者應當理解,可對本發明之技術方案進行修改或等同替換,而不脫離本發明技術方案之精神與範圍。Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified Or an equivalent replacement without departing from the spirit and scope of the technical solution of the present invention.

100:陣列天線 101:第一天線單元組 102:第二天線單元組 103:第三天線單元組 104:第四天線單元組 10:天線單元 11:輻射層 111:饋點 112:第一饋點 113:第二饋點 114:連接部 F1:第一等效電流路徑 F2:第二等效電流路徑 12:第一介質層 13:第一接地層 131:槽孔 14:第二介質層 15:第二接地層 16:導柱 20:相位控制模組 21:控制單元 22:收發電路 22a:第一收發電路 22b:第二收發電路 22c:第三收發電路 22d:第四收發電路 200:無線通訊裝置 100: array antenna 101: The first antenna unit group 102: The second antenna unit group 103: The third antenna unit group 104: The fourth antenna unit group 10: Antenna unit 11: Radiation layer 111: feed point 112: The first feed point 113: Second feed point 114: connection part F1: The first equivalent current path F2: Second equivalent current path 12: The first dielectric layer 13: The first ground layer 131: slot 14: Second dielectric layer 15:Second ground plane 16: guide post 20: Phase control module 21: Control unit 22: Transceiver circuit 22a: the first transceiver circuit 22b: the second transceiver circuit 22c: the third transceiver circuit 22d: The fourth transceiver circuit 200: wireless communication device

圖1是本申請一實施例提供之無線通訊裝置與低軌道衛星通訊之示意圖。FIG. 1 is a schematic diagram of communication between a wireless communication device and a low-orbit satellite provided by an embodiment of the present application.

圖2是本申請一實施例提供之天線單元之立體示意圖。FIG. 2 is a schematic perspective view of an antenna unit provided by an embodiment of the present application.

圖3是圖2所示之天線單元之另一角度之示意圖。FIG. 3 is a schematic diagram of another angle of the antenna unit shown in FIG. 2 .

圖4是圖2所示天線單元中之輻射層之示意圖。FIG. 4 is a schematic diagram of a radiation layer in the antenna unit shown in FIG. 2 .

圖5是圖2所示天線單元中之輻射層產生之電流路徑之示意圖。FIG. 5 is a schematic diagram of a current path generated by a radiation layer in the antenna unit shown in FIG. 2 .

圖6是圖2所示天線單元產生之圓極化電磁波之示意圖。FIG. 6 is a schematic diagram of circularly polarized electromagnetic waves generated by the antenna unit shown in FIG. 2 .

圖7A是本申請另一實施例提供之輻射層之示意圖。FIG. 7A is a schematic diagram of a radiation layer provided by another embodiment of the present application.

圖7B是本申請另一實施例提供之輻射層之示意圖。FIG. 7B is a schematic diagram of a radiation layer provided by another embodiment of the present application.

圖8是本申請另一實施例提供之槽孔之示意圖。FIG. 8 is a schematic diagram of a slot provided by another embodiment of the present application.

圖9是本申請一實施例中之陣列天線之結構框圖。FIG. 9 is a structural block diagram of an array antenna in an embodiment of the present application.

圖10本申請一實施例提供之陣列天線之示意圖。FIG. 10 is a schematic diagram of an array antenna provided by an embodiment of the present application.

圖11是本申請一實施例提供之天線單元與相位控制模組之連接框圖。Fig. 11 is a connection block diagram of an antenna unit and a phase control module provided by an embodiment of the present application.

圖12是圖10所示陣列天線之輻射場型圖。FIG. 12 is a radiation pattern diagram of the array antenna shown in FIG. 10 .

圖13A是本申請另一實施例提供之陣列天線之示意圖。FIG. 13A is a schematic diagram of an array antenna provided by another embodiment of the present application.

圖13B是本申請另一實施例提供之陣列天線之示意圖。FIG. 13B is a schematic diagram of an array antenna provided by another embodiment of the present application.

none

10:天線單元 10: Antenna unit

11:輻射層 11: Radiation layer

12:第一介質層 12: The first dielectric layer

13:第一接地層 13: The first ground layer

131:槽孔 131: slot

14:第二介質層 14: Second dielectric layer

15:第二接地層 15:Second ground plane

16:導柱 16: guide post

Claims (10)

一種天線單元,應用於無線通訊裝置,其中,所述天線單元包括輻射層、第一介質層、第一接地層、第二介質層、第二接地層及複數導柱,所述第一介質層,第一接地層,第二介質層,第二接地層依次層疊設置,所述輻射層設置於所述第一介質層遠離所述第一接地層之一側,所述輻射層設置有饋點,用以為所述天線單元饋電,所述第一接地層及所述第一介質層對應所述輻射層開設有槽孔,所述導柱沿所述槽孔之周沿設置,且貫穿所述第二介質層,所述導柱之兩端還分別連接所述第一接地層及所述第二接地層。An antenna unit applied to a wireless communication device, wherein the antenna unit includes a radiation layer, a first dielectric layer, a first ground layer, a second dielectric layer, a second ground layer and a plurality of guide posts, and the first dielectric layer , the first ground layer, the second dielectric layer, and the second ground layer are stacked in sequence, the radiation layer is disposed on the side of the first dielectric layer away from the first ground layer, and the radiation layer is provided with a feed point , used to feed power to the antenna unit, the first ground layer and the first dielectric layer are provided with slots corresponding to the radiation layer, the guide post is arranged along the periphery of the slot, and runs through the The second dielectric layer, the two ends of the guide post are also respectively connected to the first ground layer and the second ground layer. 如請求項1所述之天線單元,其中,所述饋點包括第一饋點及第二饋點,所述第一饋點用以為所述天線單元饋電,以使所述天線單元產生左旋圓極化電磁波或右旋圓極化電磁波兩者中之一種,所述第二饋點用以為所述天線單元饋電,以使所述天線單元產生左旋圓極化電磁波或右旋圓極化電磁波兩者中之另外一種。The antenna unit according to claim 1, wherein the feed point includes a first feed point and a second feed point, and the first feed point is used to feed the antenna unit so that the antenna unit produces a left-handed One of circularly polarized electromagnetic waves or right-handed circularly polarized electromagnetic waves, the second feed point is used to feed the antenna unit, so that the antenna unit generates left-handed circularly polarized electromagnetic waves or right-handed circularly polarized electromagnetic waves The other of electromagnetic waves. 如請求項2所述之天線單元,其中,所述輻射層呈多邊形,且由導電材料製成,藉由所述第一饋點及所述第二饋點饋入電流,以於所述輻射層上形成兩條不同之電流路徑。The antenna unit according to claim 2, wherein the radiating layer is polygonal and made of conductive material, and current is fed through the first feed point and the second feed point, so as to radiate Two different current paths are formed on the layer. 如請求項1所述之天線單元,其中,於所述天線單元之堆疊方向上,所述槽孔之投影面積覆蓋所述輻射層之投影面積。The antenna unit according to claim 1, wherein, in the stacking direction of the antenna unit, the projected area of the slot covers the projected area of the radiation layer. 如請求項1所述之天線單元,其中,複數所述導柱與所述第一接地層及所述第二接地層共同形成腔體。The antenna unit according to claim 1, wherein the plurality of guide posts together with the first ground layer and the second ground layer form a cavity. 一種陣列天線,其中,所述陣列天線包括複數項如請求項第1-5任一項所述之天線單元。An array antenna, wherein the array antenna includes a plurality of antenna units as described in any one of claim items 1-5. 如請求項6所述之陣列天線,其中,所述陣列天線還包括相位控制模組,所述相位控制模組設置於所述第二接地層遠離所述第二介質層之一側,所述相位控制模組電連接至所述天線單元,用於控制複數所述天線單元之波束方向。The array antenna according to claim 6, wherein the array antenna further includes a phase control module, the phase control module is arranged on a side of the second ground layer away from the second dielectric layer, the The phase control module is electrically connected to the antenna unit and is used for controlling the beam directions of the plurality of antenna units. 如請求項7所述之陣列天線,其中,所述相位控制模組包括複數控制單元,每一所述控制單元電連接至複數所述天線單元,用於分組控制所述天線單元激發不同頻段及/或不同相位之電磁波。The array antenna according to claim 7, wherein the phase control module includes a plurality of control units, and each of the control units is electrically connected to a plurality of the antenna units for controlling the antenna units in groups to excite different frequency bands and /or electromagnetic waves of different phases. 如請求項8所述之陣列天線,其中,所述陣列天線還包括收發電路,所述控制單元電連接至所述收發電路,所述收發電路電連接至所述天線單元之饋點,所述控制單元藉由控制饋入所述天線單元之電流之相位,以控制所述陣列天線之相位。The array antenna according to claim 8, wherein the array antenna further includes a transceiver circuit, the control unit is electrically connected to the transceiver circuit, and the transceiver circuit is electrically connected to the feed point of the antenna unit, the The control unit controls the phase of the array antenna by controlling the phase of the current fed into the antenna unit. 如請求項6所述之陣列天線,其中,每一所述天線單元與另一所述天線單元間隔相等距離或互相接觸。The array antenna according to claim 6, wherein each of the antenna elements is spaced at an equal distance from another antenna element or is in contact with each other.
TW110136362A 2021-09-29 2021-09-29 Antenna unit and array antenna TWI819386B (en)

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TWI836818B (en) * 2022-12-26 2024-03-21 泓博無線通訊技術有限公司 Millimeter wave antenna for low-orbit satellite communication

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