TW201828531A - Electronic device and antenna unit thereof - Google Patents

Electronic device and antenna unit thereof Download PDF

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Publication number
TW201828531A
TW201828531A TW106101705A TW106101705A TW201828531A TW 201828531 A TW201828531 A TW 201828531A TW 106101705 A TW106101705 A TW 106101705A TW 106101705 A TW106101705 A TW 106101705A TW 201828531 A TW201828531 A TW 201828531A
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Taiwan
Prior art keywords
conductive portion
extension arm
antenna unit
antenna
corner
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TW106101705A
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Chinese (zh)
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TWI627794B (en
Inventor
吳正雄
吳建逸
吳朝旭
柯慶祥
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和碩聯合科技股份有限公司
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Priority to TW106101705A priority Critical patent/TWI627794B/en
Priority to CN201710812552.6A priority patent/CN108321490B/en
Application granted granted Critical
Publication of TWI627794B publication Critical patent/TWI627794B/en
Publication of TW201828531A publication Critical patent/TW201828531A/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
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2258—Supports; Mounting means by structural association with other equipment or articles used with computer equipment
    • H01Q1/2266—Supports; Mounting means by structural association with other equipment or articles used with computer equipment disposed inside the computer
    • 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
    • H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/48—Earthing means; Earth screens; Counterpoises
    • 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
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/10—Resonant antennas

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  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • General Engineering & Computer Science (AREA)
  • Support Of Aerials (AREA)

Abstract

An antenna unit includes a feeding terminal, a ground terminal, a matching circuit, a first conductive portion, a second conductive portion, a first extensive arm, a second extensive arm and a third extensive arm. The matching circuit is electrically connected to the feeding terminal and the ground terminal respectively. The second conductive portion includes a first edge and a second edge on opposite sides. The first extensive arm is disposed to extend from a first corner of the second conductive to the first conductive portion. The second extensive arm is disposed to extend outward from a second corner of the second conductive portion. The third extensive arm is disposed to extend outward from a third corner of the second conductive portion. The antenna unit forms multiple resonant modes.

Description

電子裝置及其天線單元    Electronic device and antenna unit thereof   

本揭露文件係關於一種天線單元，特別係關於一種用於金屬殼體的電子裝置之天線單元。 This disclosure relates to an antenna unit, and more particularly to an antenna unit for an electronic device with a metal case.

現今電子裝置，例如筆記型電腦、平板電腦等產品，為了美觀的因素，常採用金屬材質的殼體設計。然而，全金屬殼體的電子裝置因受到金屬外殼的限制，使其內部天線的效率及輻射場型難以有良好的表現，導致信號傳輸品質受影響。 Today's electronic devices, such as notebook computers, tablet computers, and other products, are often designed with metal casings for aesthetic reasons. However, due to the limitation of the metal case of the electronic device with a full metal casing, it is difficult for the efficiency of the internal antenna and the radiation field type to perform well, which affects the signal transmission quality.

此外，為了電子裝置的便攜性，電子裝置內部的空間需要妥善利用，在小型或可攜式電子裝置上用來設置天線的空間十分有限，因此，如何在全金屬殼體的電子裝置及內部有限的空間中設計能夠同時收發多個無線頻段且具備良好天線效率之天線實屬重要研發議題。 In addition, for the portability of the electronic device, the space inside the electronic device needs to be properly utilized. The space for setting the antenna on a small or portable electronic device is very limited. Therefore, how to limit the electronic device and its interior in a full metal case Designing antennas that can transmit and receive multiple wireless frequency bands at the same time with good antenna efficiency is an important research and development issue.

為了提升裝設於電子產品的金屬殼體內的多頻天線單元其天線效率及信號收發品質，在本揭露文件之一技術態樣中提出設置於電子裝置中的一種天線單元，其中電子 裝置包含第一金屬殼體、第二金屬殼體以及金屬接地牆，金屬接地牆連接第一金屬殼體與第二金屬殼體，且金屬接地牆、第一金屬殼體與第二金屬殼體之間形成空腔，且第二金屬殼體具有側壁往第一金屬殼體延伸，天線單元設置於空腔中並鄰近於第二金屬殼體之側壁，天線單元包含饋入端、接地端、匹配電路、第一導電部、第二導電部、第一延伸臂、第二延伸臂以及第三延伸臂。匹配電路分別電性連接饋入端以及接地端。第一導電部與接地端電性連接。第二導電部具有位於兩相反側的第一邊緣及第二邊緣，饋入端透過匹配電路耦接至第二導電部之第一邊緣。第一延伸臂設置由第二導電部之第一邊緣的第一角落延伸至第一導電部。第二延伸臂設置由第二導電部之第二邊緣的第二角落向外延伸。第三延伸臂設置由第二導電部之第二邊緣的第三角落向外延伸，第二延伸臂之長度大於第三延伸臂之長度，其中接地端搭接至第二金屬殼體，第二導電部、第一延伸臂以及第一導電部形成之第一天線路徑與空腔共振形成第一高頻共振模態，第二導電部與第二延伸臂形成之第二天線路徑與空腔共振形成低頻共振模態，第二導電部與第三延伸臂形成之第三天線路徑與空腔共振形成第二高頻共振模態。 In order to improve the antenna efficiency and signal transmission and reception quality of a multi-frequency antenna unit installed in a metal case of an electronic product, an antenna unit provided in an electronic device is proposed in a technical aspect of this disclosure document, wherein the electronic device includes a first A metal case, a second metal case, and a metal ground wall. The metal ground wall connects the first metal case and the second metal case, and is formed between the metal ground wall, the first metal case, and the second metal case. A cavity, and the second metal casing has a sidewall extending toward the first metal casing; the antenna unit is disposed in the cavity and is adjacent to the sidewall of the second metal casing; the antenna unit includes a feeding terminal, a ground terminal, a matching circuit, The first conductive portion, the second conductive portion, the first extension arm, the second extension arm, and the third extension arm. The matching circuit is electrically connected to the feeding terminal and the ground terminal, respectively. The first conductive portion is electrically connected to the ground terminal. The second conductive portion has a first edge and a second edge located on two opposite sides, and the feeding end is coupled to the first edge of the second conductive portion through a matching circuit. The first extension arm is provided to extend from the first corner of the first edge of the second conductive portion to the first conductive portion. The second extension arm is provided to extend outward from a second corner of the second edge of the second conductive portion. The third extension arm is provided to extend outward from the third corner of the second edge of the second conductive portion. The length of the second extension arm is greater than the length of the third extension arm, wherein the ground end is overlapped with the second metal casing, and the second The first antenna path formed by the conductive part, the first extension arm, and the first conductive part and the cavity resonate to form a first high-frequency resonance mode, and the second antenna path formed by the second conductive part and the second extension arm, and the space. The cavity resonance forms a low-frequency resonance mode, and the third antenna path formed by the second conductive portion and the third extension arm and the cavity resonance form a second high-frequency resonance mode.

此外，在本揭露文件之另一技術態樣中提出一種電子裝置，包含第一金屬殼體、第二金屬殼體、金屬接地牆以及至少一天線單元。第二金屬殼體具有一側壁往第一金屬殼體延伸，金屬接地牆連接第一金屬殼體與第二金屬殼體，且金屬接地牆、第一金屬殼體與第二金屬殼體之間形成空腔。至少一天線單元設置於空腔中並鄰近於第二金屬殼體之側壁，其 中至少一天線單元各自包含饋入端、接地端、匹配電路、第一導電部、第二導電部、第一延伸臂、第二延伸臂以及第三延伸臂。接地端連接至第二金屬殼體。匹配電路分別電性連接饋入端以及接地端。第一導電部與接地端電性連接，匹配電路電性連接至第一導電部。第二導電部具有位於兩相反側的第一邊緣及第二邊緣，饋入端透過匹配電路耦接至第二導電部之第一邊緣。第一延伸臂設置由第二導電部之第一邊緣的第一角落延伸至第一導電部。第二延伸臂設置由第二導電部之第二邊緣的第二角落向外延伸。第三延伸臂設置由第二導電部之第二邊緣的第三角落向外延伸，第二延伸臂之長度大於第三延伸臂之長度。第二導電部、第一延伸臂以及第一導電部形成之第一天線路徑與空腔共振形成第一高頻共振模態，第二導電部與第二延伸臂形成之第二天線路徑與空腔共振形成低頻共振模態，第二導電部與第三延伸臂形成之第三天線路徑與空腔共振形成第二高頻共振模態。 In addition, in another technical aspect of the present disclosure, an electronic device is proposed, which includes a first metal case, a second metal case, a metal ground wall, and at least one antenna unit. The second metal casing has a side wall extending toward the first metal casing, a metal ground wall connects the first metal casing and the second metal casing, and the metal ground wall, the first metal casing, and the second metal casing Form a cavity. At least one antenna unit is disposed in the cavity and is adjacent to the side wall of the second metal casing, wherein each of the at least one antenna unit includes a feeding terminal, a ground terminal, a matching circuit, a first conductive portion, a second conductive portion, and a first extension. An arm, a second extension arm, and a third extension arm. The ground terminal is connected to the second metal case. The matching circuit is electrically connected to the feeding terminal and the ground terminal, respectively. The first conductive portion is electrically connected to the ground terminal, and the matching circuit is electrically connected to the first conductive portion. The second conductive portion has a first edge and a second edge located on two opposite sides, and the feeding end is coupled to the first edge of the second conductive portion through a matching circuit. The first extension arm is provided to extend from the first corner of the first edge of the second conductive portion to the first conductive portion. The second extension arm is provided to extend outward from a second corner of the second edge of the second conductive portion. The third extension arm is provided to extend outward from the third corner of the second edge of the second conductive portion, and the length of the second extension arm is greater than the length of the third extension arm. The first conductive path formed by the second conductive part, the first extension arm, and the first conductive part and the cavity resonate to form a first high-frequency resonance mode, and the second antenna path formed by the second conductive part and the second extension arm. Resonance with the cavity forms a low-frequency resonance mode, and a third antenna path formed by the second conductive portion and the third extension arm resonates with the cavity to form a second high-frequency resonance mode.

於一實施例中，第二金屬殼體之側壁上開設有至少一塑膠槽縫，天線單元是鄰近於側壁的塑膠槽縫所在位置。 In one embodiment, at least one plastic slot is formed on a sidewall of the second metal casing, and the antenna unit is located adjacent to the plastic slot on the sidewall.

藉由本揭露文件揭示的技術，即使電子裝置採用金屬殼體，其內部的天線單元受到金屬機身的影響可以大幅減少，天線單元可以貼附在上下金屬件之間的側壁處，透過側壁上的槽縫向外收發訊號，本揭示文件中的天線單元可以充分利用電子裝置機身內部的空間，且天線效率及信號收發品質仍可具有良好的性能表現。 With the technology disclosed in this disclosure document, even if the electronic device uses a metal case, the internal antenna unit of the electronic device can be greatly reduced by the influence of the metal body. The antenna unit can be attached to the side wall between the upper and lower metal parts, and pass through the side wall. The slot sends and receives signals outward. The antenna unit in this disclosure can make full use of the space inside the body of the electronic device, and the antenna efficiency and signal transmission and reception quality can still have good performance.

100R、100L‧‧‧天線單元 100R, 100L‧‧‧ Antenna Unit

111R、111L、112R、113R、113L‧‧‧天線佈局 111R, 111L, 112R, 113R, 113L‧‧‧ Antenna Layout

120‧‧‧匹配電路 120‧‧‧ matching circuit

121‧‧‧電容 121‧‧‧Capacitor

122‧‧‧電感 122‧‧‧Inductance

200‧‧‧電子裝置 200‧‧‧Electronic device

210、220‧‧‧金屬殼體 210, 220‧‧‧ metal casing

230‧‧‧側壁 230‧‧‧ sidewall

231、232‧‧‧塑膠槽縫 231, 232‧‧‧plastic slot

240‧‧‧面板部分 240‧‧‧ Panel section

241‧‧‧樞軸 241‧‧‧ Pivot

250‧‧‧金屬接地牆 250‧‧‧Metal Ground Wall

FD‧‧‧饋入端 FD‧‧‧feed side

C1‧‧‧第一導電部 C1‧‧‧The first conductive part

C2‧‧‧第二導電部 C2‧‧‧Second conductive section

C3‧‧‧第三導電部 C3‧‧‧The third conductive part

A1‧‧‧第一延伸臂 A1‧‧‧First extension arm

A1b‧‧‧分支延伸臂 A1b‧‧‧ Branch Extension Arm

A2‧‧‧第二延伸臂 A2‧‧‧Second Extension Arm

A2e‧‧‧延伸段落 A2e‧‧‧extended paragraph

A3‧‧‧第三延伸臂 A3‧‧‧third extension arm

G1‧‧‧線形槽孔 G1‧‧‧Linear slot

G2‧‧‧線形槽縫 G2‧‧‧Linear slot

SUB‧‧‧基板 SUB‧‧‧ substrate

GND1、GND2‧‧‧接地端 GND1, GND2‧‧‧ ground terminal

CAV‧‧‧空腔 CAV‧‧‧ Cavity

D1‧‧‧第一距離 D1‧‧‧First distance

D2‧‧‧第二距離 D2‧‧‧Second Distance

D3‧‧‧寬度 D3‧‧‧Width

D4‧‧‧間距 D4‧‧‧Pitch

D5‧‧‧寬度 D5‧‧‧Width

A-A‧‧‧剖面線 A-A‧‧‧ hatching

301~307‧‧‧曲線 301 ~ 307‧‧‧curves

EDG1‧‧‧第一邊緣 EDG1‧‧‧First Edge

EDG2‧‧‧第二邊緣 EDG2‧‧‧Second Edge

CN1‧‧‧第一角落 CN1‧‧‧first corner

CN2‧‧‧第二角落 CN2‧‧‧Second Corner

CN3‧‧‧第三角落 CN3‧‧‧ Third Corner

CN4‧‧‧第四角落 CN4‧‧‧ fourth corner

AX‧‧‧垂直軸線 AX‧‧‧ vertical axis

第1圖繪示本揭露文件之一實施例中電子裝置以及應用於電子裝置的天線單元的示意圖。 FIG. 1 is a schematic diagram of an electronic device and an antenna unit applied to the electronic device in an embodiment of the disclosure.

第2圖繪示根據第1圖中的電子裝置沿一剖面線的剖面側視圖。 FIG. 2 illustrates a cross-sectional side view of the electronic device according to FIG. 1 along a section line.

第3圖繪示本揭露文件之一實施例之天線單元其中一種天線佈局的示意圖。 FIG. 3 is a schematic diagram of an antenna layout of an antenna unit according to an embodiment of the disclosure.

第4A圖至第4D圖繪示在不同實施例中第1圖中的兩天線單元各自的天線佈局的相對關係。 FIG. 4A to FIG. 4D illustrate the relative relationship between the antenna layouts of the two antenna units in FIG. 1 in different embodiments.

第5圖繪示根據本揭示文件之一實施例之天線單元另一種天線佈局的示意圖。 FIG. 5 is a schematic diagram of another antenna layout of an antenna unit according to an embodiment of the disclosure.

第6圖繪示根據本揭示文件之一實施例之天線單元另一種天線佈局的示意圖。 FIG. 6 is a schematic diagram of another antenna layout of an antenna unit according to an embodiment of the disclosure.

第7圖繪示根據本揭示文件之一實施例之天線單元另一種天線佈局的示意圖。 FIG. 7 is a schematic diagram of another antenna layout of an antenna unit according to an embodiment of the present disclosure.

第8圖繪示本揭露文件之一實施例之第3圖所示的天線單元的天線電壓駐波比對頻率之關係圖。 FIG. 8 is a diagram showing the relationship between the antenna voltage standing wave ratio and the frequency of the antenna unit shown in FIG. 3 of an embodiment of the disclosure document.

第9圖繪示本揭露文件之一實施例之第4A圖所示的天線單元以及天線單元的天線電壓駐波比對頻率之關係圖。 FIG. 9 is a diagram showing the relationship between the antenna unit and the antenna voltage standing wave ratio of the antenna unit as shown in FIG. 4A, which is an embodiment of the disclosure document;

第10圖繪示第4A圖所示的兩天線單元之間的隔離度對頻率之關係圖。 FIG. 10 is a graph showing the relationship between the isolation and frequency between the two antenna elements shown in FIG. 4A.

第11圖繪示第4A圖中的兩天線單元各自的天線效率對頻率之關係圖。 FIG. 11 shows the relationship between the antenna efficiency and frequency of the two antenna units in FIG. 4A.

下文係舉實施例配合所附圖式作詳細說明，但所描述的具體實施例僅僅用以解釋本發明，並不用來限定本發明，而結構操作之描述非用以限制其執行之順序，任何由元件重新組合之結構，所產生具有均等功效的裝置，皆為本發明揭示內容所涵蓋的範圍。 The following is a detailed description of the embodiments with the accompanying drawings, but the specific embodiments described are only used to explain the present invention and are not intended to limit the present invention, and the description of the structural operations is not intended to limit the order of execution, any The structures reassembled by the components, and the devices with equal effects are all covered by the disclosure of the present invention.

請參閱第1圖，第1圖繪示本揭露文件之一實施例中電子裝置200以及應用於電子裝置200的天線單元的示意圖。電子裝置200可為筆記型電腦、平板電腦或任何可搭載天線收發裝置的電子產品，於第1圖所示之實施例中，電子裝置200以筆記型電腦為例作說明。 Please refer to FIG. 1. FIG. 1 illustrates a schematic diagram of an electronic device 200 and an antenna unit applied to the electronic device 200 in an embodiment of the disclosure. The electronic device 200 may be a notebook computer, a tablet computer, or any electronic product that can be equipped with an antenna transceiver device. In the embodiment shown in FIG. 1, the electronic device 200 is described using a notebook computer as an example.

在第1圖中，電子裝置200的長×寬×厚尺寸例如為280mm×200mm×13mm，其具有相互樞接的面板部分240及主體部分。面板部分240可以包含顯示屏幕及容置顯示屏幕的金屬容置殼體，顯示屏幕用以呈現影像介面。主體部分包含位於下方的金屬殼體210以及位於上方的金屬殼體220。一般而言，電子裝置200的鍵盤或觸控板等輸入裝置是安裝於金屬殼體220上。金屬殼體210為電子裝置200的底殼，視實際需求可以設置有電池模組的替換開口。 In FIG. 1, the length × width × thickness dimension of the electronic device 200 is, for example, 280 mm × 200 mm × 13 mm, and it has a panel portion 240 and a main body portion that are pivotally connected to each other. The panel portion 240 may include a display screen and a metal accommodating case accommodating the display screen, and the display screen is used to present an image interface. The main body portion includes a metal case 210 located below and a metal case 220 located above. Generally, an input device such as a keyboard or a touch pad of the electronic device 200 is mounted on the metal casing 220. The metal case 210 is a bottom case of the electronic device 200, and a replacement opening of a battery module may be provided according to actual needs.

請一併參閱第2圖，其繪示根據第1圖中的電子裝置200沿剖面線A-A的剖面側視圖。面板部分240及主體部分可以透過樞軸241連接，在金屬殼體210與金屬殼體220之間設置一金屬接地牆250且金屬接地牆250連接金屬 殼體210與金屬殼體220。金屬接地牆250、金屬殼體210與金屬殼體220之間包圍形成一空腔CAV，本揭示文件的電子裝置200在上述空腔CAV當中設置至少一天線單元，用以收發無線訊號，於第1圖之實施例中，電子裝置200共包含一天線單元100R以及一天線單元100L。 Please also refer to FIG. 2, which illustrates a cross-sectional side view of the electronic device 200 according to FIG. 1 along a section line A-A. The panel portion 240 and the main body portion may be connected through a pivot 241. A metal ground wall 250 is provided between the metal case 210 and the metal case 220, and the metal ground wall 250 connects the metal case 210 and the metal case 220. A cavity CAV is formed between the metal ground wall 250, the metal casing 210, and the metal casing 220. The electronic device 200 of the present disclosure includes at least one antenna unit in the cavity CAV for receiving and transmitting wireless signals. In the embodiment shown in the figure, the electronic device 200 includes an antenna unit 100R and an antenna unit 100L.

在實際應用中，天線單元100R以及天線單元100L其中一者可作為主要天線(main antenna)而另一者作為輔助天線(auxiliary antenna)。在一些例子中，當主要天線無法正常使用或是訊號強度不足時，可以改以輔助天線進行訊號收發。在另一些例子中，主要天線與輔助天線可以同時進行訊號收發以提高傳輸效率。但本揭示文件並不以同時包含兩天線單元100R以及天線單元100L為限，於另一實施例中，電子裝置200亦可僅設置單一天線單元(天線單元100R或天線單元100L)。 In practical applications, one of the antenna unit 100R and the antenna unit 100L can be used as a main antenna and the other can be used as an auxiliary antenna. In some examples, when the main antenna cannot be used normally or the signal strength is insufficient, the auxiliary antenna can be used for signal transmission and reception instead. In other examples, the main antenna and the auxiliary antenna can send and receive signals at the same time to improve transmission efficiency. However, the present disclosure is not limited to including two antenna units 100R and 100L at the same time. In another embodiment, the electronic device 200 may be provided with only a single antenna unit (the antenna unit 100R or the antenna unit 100L).

如第1圖以及第2圖所示之實施例中，金屬殼體220具有側壁230，側壁230是由金屬殼體220的一側往金屬殼體210延伸且鄰近於面板部分240及主體部分相互樞接的位置，天線單元100R、100L是直立設置於金屬殼體210與金屬殼體220之間且平行於側壁230，其中天線單元100R與電子裝置200的側壁230間隔第一距離D1，第一距離D1例如為2mm。又如第1圖所示，天線單元100R設置於由側壁230、金屬接地牆250、金屬殼體210、220之間包圍形成的空腔CAV中並鄰近於側壁230的右側，另一天線單元100L則設置於由側壁230、金屬接地牆250、金屬殼體210、220 之間的空腔CAV中並鄰近於側壁230的左側。 As shown in FIG. 1 and FIG. 2, the metal case 220 has a side wall 230. The side wall 230 extends from one side of the metal case 220 to the metal case 210 and is adjacent to the panel portion 240 and the main body portion. In the pivoted position, the antenna units 100R and 100L are vertically arranged between the metal casing 210 and the metal casing 220 and are parallel to the side wall 230. The antenna unit 100R and the side wall 230 of the electronic device 200 are separated by a first distance D1. The distance D1 is, for example, 2 mm. As shown in FIG. 1, the antenna unit 100R is disposed in a cavity CAV surrounded by the side wall 230, the metal ground wall 250, and the metal shells 210 and 220 and is adjacent to the right side of the side wall 230. The other antenna unit 100L Then, it is disposed in the cavity CAV between the side wall 230, the metal ground wall 250, and the metal shells 210 and 220, and is adjacent to the left side of the side wall 230.

如第1圖以及第2圖所示，金屬殼體220之側壁230上開設有多個塑膠槽縫231、232，天線單元100R鄰近設置於上述多個塑膠槽縫231，天線單元100L鄰近設置於上述多個塑膠槽縫232，如此一來，設置在金屬殼體210、220當中的天線單元100R與100L可以通過塑膠槽縫231、232向外收發無線訊號。塑膠槽縫231、232可以作為天線單元100R、100L的訊號輻射路徑的出口、音響裝置的出音孔及/或電子裝置200的散熱口等。 As shown in FIG. 1 and FIG. 2, a plurality of plastic slots 231 and 232 are provided on the side wall 230 of the metal housing 220. The antenna unit 100R is disposed adjacent to the plastic slots 231 and the antenna unit 100L is disposed adjacent to The plurality of plastic slots 232 described above, so that the antenna units 100R and 100L disposed in the metal casings 210 and 220 can transmit and receive wireless signals externally through the plastic slots 231 and 232. The plastic slots 231 and 232 can be used as the exit of the signal radiation path of the antenna units 100R and 100L, the sound output hole of the audio device, and / or the heat radiation port of the electronic device 200.

於第1圖及第2圖所示的實施例中，側壁230與上方的金屬殼體220為一體成型並往金屬殼體210方向延伸，但本揭示文件並不以此為限。於另一實施例中，側壁230亦可以與底部的金屬殼體210為一體成型並往金屬殼體220方向延伸。於此實施例中，金屬殼體210、220的總高度例如大約為7.5mm。 In the embodiment shown in FIG. 1 and FIG. 2, the side wall 230 is integrally formed with the upper metal shell 220 and extends toward the metal shell 210, but this disclosure is not limited thereto. In another embodiment, the side wall 230 may be integrally formed with the metal shell 210 at the bottom and extend toward the metal shell 220. In this embodiment, the total height of the metal shells 210 and 220 is, for example, about 7.5 mm.

此外，參照第1圖及第2圖，金屬接地牆250平行於天線單元100R、100L且連接金屬殼體210與金屬殼體220，使得金屬殼體210產生的不必要的電荷能夠透過金屬接地牆250傳輸至金屬殼體220。如第2圖所示，金屬接地牆250與天線單元100R之間的間隔第二距離D2，於一實施例中第二距離D2可為15mm。金屬接地牆250設置在天線單元100R、100L與電子裝置200其他的電子零組件(例如處理器、記憶體、硬碟、電池、通訊晶片、顯示晶片等)之間，可以避免天線單元100R、100L受電磁干擾影響，此外，金 屬接地牆250可以將天線單元100R、100L向內發射的天線訊號反射向外發送，有利於提高天線單元100R、100L的效率。 In addition, referring to FIGS. 1 and 2, the metal ground wall 250 is parallel to the antenna units 100R and 100L and connects the metal case 210 and the metal case 220 so that unnecessary charges generated by the metal case 210 can pass through the metal ground wall. 250 is transmitted to the metal case 220. As shown in FIG. 2, the second distance D2 between the metal ground wall 250 and the antenna unit 100R, in one embodiment, the second distance D2 may be 15 mm. The metal ground wall 250 is disposed between the antenna units 100R and 100L and other electronic components of the electronic device 200 (such as a processor, a memory, a hard disk, a battery, a communication chip, a display chip, etc.), and the antenna units 100R and 100L can be avoided. Affected by electromagnetic interference, in addition, the metal ground wall 250 can reflect the antenna signals emitted by the antenna units 100R and 100L inward and send them outward, which is beneficial to improving the efficiency of the antenna units 100R and 100L.

關於天線單元100R的詳細結構請參閱第3圖。第3圖繪示本揭露文件之一實施例之天線單元100R其中一種天線佈局111R的示意圖。具體來說，第3圖是以第1圖及第2圖中右側的天線單元100R由空腔CAV向外方向觀看的上視示意圖。 Please refer to FIG. 3 for the detailed structure of the antenna unit 100R. FIG. 3 is a schematic diagram of an antenna layout 111R of an antenna unit 100R according to an embodiment of the disclosure. Specifically, FIG. 3 is a schematic top view of the antenna unit 100R on the right in FIGS. 1 and 2 as viewed from the cavity CAV outward.

如第3圖所示，天線單元100R包含基板SUB，天線單元100R的天線佈局111R設置於基板SUB上。天線單元100R包含饋入端FD、接地端GND1、GND2、匹配電路120、第一導電部C1、第二導電部C2、第一延伸臂A1、第二延伸臂A2以及第三延伸臂A3。 As shown in FIG. 3, the antenna unit 100R includes a substrate SUB, and the antenna layout 111R of the antenna unit 100R is disposed on the substrate SUB. The antenna unit 100R includes a feeding terminal FD, ground terminals GND1, GND2, a matching circuit 120, a first conductive portion C1, a second conductive portion C2, a first extension arm A1, a second extension arm A2, and a third extension arm A3.

如第3圖所示，匹配電路120分別電性連接饋入端FD以及接地端GND2，更詳細地說，匹配電路120包含第三導電部C3、電容121以及電感122。匹配電路120的第三導電部C3電性連接饋入端FD。電容121電性連接於第三導電部C3與第二導電部C2之間。電感122電性連接於第三導電部C3與接地端GND2之間。 As shown in FIG. 3, the matching circuit 120 is electrically connected to the feeding terminal FD and the ground terminal GND2. More specifically, the matching circuit 120 includes a third conductive portion C3, a capacitor 121, and an inductor 122. The third conductive portion C3 of the matching circuit 120 is electrically connected to the feeding terminal FD. The capacitor 121 is electrically connected between the third conductive portion C3 and the second conductive portion C2. The inductor 122 is electrically connected between the third conductive portion C3 and the ground terminal GND2.

於一實際應用中，饋入端FD可以連接到同軸傳輸線(為求圖面的簡潔未繪示同軸傳輸線)內層的訊號芯線，接地端GND1連接到上述同軸傳輸線外層的接地包線。接地端GND2可以是銅箔片(或鋁箔片)，該銅箔片進一步搭接至金屬殼體220的系統接地面(圖未示出)。 In an actual application, the feeding end FD can be connected to the inner core signal line of a coaxial transmission line (coaxial transmission line is not shown for simplicity of the drawing), and the ground terminal GND1 is connected to the outer grounding wire of the coaxial transmission line. The ground terminal GND2 may be a copper foil (or aluminum foil), and the copper foil is further overlapped to a system ground plane (not shown) of the metal casing 220.

第一導電部C1與接地端GND1、GND2電性連接，於第3圖所示之實施例中，第一導電部C1為L字型。第二導電部C2具有位於兩相反側的第一邊緣EDG1及第二邊緣EDG2，於第3圖所示之實施例中，匹配電路120中的電容121耦接至第二導電部C2之第一邊緣EDG1的中段。如此一來，饋入端FD便可透過匹配電路120耦接至第二導電部C2之第一邊緣EDG1。 The first conductive portion C1 is electrically connected to the ground terminals GND1 and GND2. In the embodiment shown in FIG. 3, the first conductive portion C1 is L-shaped. The second conductive portion C2 has a first edge EDG1 and a second edge EDG2 located on two opposite sides. In the embodiment shown in FIG. 3, the capacitor 121 in the matching circuit 120 is coupled to the first conductive portion C2. The middle section of the edge EDG1. In this way, the feeding terminal FD can be coupled to the first edge EDG1 of the second conductive portion C2 through the matching circuit 120.

於第3圖所示之實施例中，第二導電部C2大致上為矩形。第二導電部C2於鄰近第一邊緣處EDG1挖設線形槽孔G1，第二導電部C2環繞線形槽孔G1，線形槽孔G1用以調整天線單元100R的阻抗匹配，線形槽孔G1的寬度D3為0.5mm。當設置線形槽孔G1時，可使天線單元100R產生電容效應以提升天線的阻抗匹配效果，提高天線的效率。 In the embodiment shown in FIG. 3, the second conductive portion C2 is substantially rectangular. The second conductive portion C2 excavates a linear slot G1 adjacent to the first edge EDG1. The second conductive portion C2 surrounds the linear slot G1. The linear slot G1 is used to adjust the impedance matching of the antenna unit 100R. The width of the linear slot G1 D3 is 0.5mm. When the linear slot G1 is provided, the antenna unit 100R can generate a capacitive effect to improve the impedance matching effect of the antenna and improve the efficiency of the antenna.

如第3圖所示，第一延伸臂A1設置由第二導電部C2之第一邊緣EDG1的第一角落CN1延伸至第一導電部C1。第二延伸臂A2設置由第二導電部C2之第二邊緣EDG2的第二角落CN2向外延伸。第三延伸臂A3設置由第二導電部C2之第二邊緣EDG2的第三角落CN3向外延伸，其中第二延伸臂A2之長度大於第三延伸臂A3之長度。 As shown in FIG. 3, the first extension arm A1 is provided to extend from the first corner CN1 of the first edge EDG1 of the second conductive portion C2 to the first conductive portion C1. The second extension arm A2 is provided to extend outward from the second corner CN2 of the second edge EDG2 of the second conductive portion C2. The third extension arm A3 is provided to extend outward from the third corner CN3 of the second edge EDG2 of the second conductive portion C2, wherein the length of the second extension arm A2 is greater than the length of the third extension arm A3.

第二延伸臂A2與第三延伸臂A3分別位於第二導電部C2之第二邊緣EDG2的相對兩側的第二角落CN2以及第三角落CN3，並且第二延伸臂A2與第三延伸臂A3反向延伸，如第3圖所示，第二延伸臂A2、第二導電部C2以及第三延伸臂A3大致上為T字型。第二延伸臂A2與第三延伸臂 A3分別為天線單元100R在兩個不同天線頻帶的訊號收發路徑。 The second extension arm A2 and the third extension arm A3 are respectively located at the second corner CN2 and the third corner CN3 on opposite sides of the second edge EDG2 of the second conductive portion C2, and the second extension arm A2 and the third extension arm A3 Extending in the reverse direction, as shown in FIG. 3, the second extension arm A2, the second conductive portion C2, and the third extension arm A3 are substantially T-shaped. The second extension arm A2 and the third extension arm A3 are signal transmission and reception paths of the antenna unit 100R in two different antenna frequency bands, respectively.

於此實施例中，第二導電部C2上方的第二邊緣EDG2、第二延伸臂A2與第三延伸臂A3上方側邊與基板SUB上方邊緣的間距D4為1mm。於第3圖之實施例中，基板SUB上方邊緣緊鄰第1圖及第2圖中的金屬殼體210，基板SUB下方位置的接地端GND2則是連接至第1圖及第2圖中的金屬殼體220。也就是說，第3圖中的天線佈局111R與第1圖及第2圖中的金屬殼體210的間隔距離為間距D4。 In this embodiment, the distance D4 between the upper edge of the second edge EDG2 above the second conductive portion C2 and the second extension arm A2 and the third extension arm A3 and the upper edge of the substrate SUB is 1 mm. In the embodiment of FIG. 3, the upper edge of the substrate SUB is close to the metal housing 210 in FIGS. 1 and 2. The ground terminal GND2 located below the substrate SUB is connected to the metal in FIGS. 1 and 2.壳 220。 The housing 220. That is, the distance between the antenna layout 111R in FIG. 3 and the metal case 210 in FIGS. 1 and 2 is the pitch D4.

第二導電部C2與第二延伸臂A2形成之第二天線路徑與空腔CAV共振形成低頻共振模態。更具體來說，第二天線路徑包含由饋入端FD、匹配電路120、第二導電部C2至第二延伸臂A2的路徑，其為與空腔CAV共振形成天線單元100R的低頻共振模態的第二天線路徑，可對應共振產生WiFi 2.4GHz的天線頻段。透過調整第二延伸臂A2的長度與寬度可以控制天線單元100R的低頻共振模態的天線頻率落點位置。 The second antenna path formed by the second conductive portion C2 and the second extension arm A2 resonates with the cavity CAV to form a low-frequency resonance mode. More specifically, the second antenna path includes a path from the feeding end FD, the matching circuit 120, the second conductive portion C2 to the second extension arm A2, which is a low-frequency resonance mode that forms the antenna unit 100R by resonance with the cavity CAV. The state of the second antenna path can generate an antenna frequency band of WiFi 2.4GHz corresponding to the resonance. By adjusting the length and width of the second extension arm A2, the antenna frequency drop position of the low-frequency resonance mode of the antenna unit 100R can be controlled.

第二導電部C2與第三延伸臂A3形成之第三天線路徑，其與空腔CAV共振形成第二高頻共振模態。更具體的說，第三天線路徑包含由饋入端FD、匹配電路120、第二導電部C2至第三延伸臂A3的路徑，其為與空腔CAV共振形成天線單元100R的第二高頻共振模態的第三天線路徑，亦可對應共振產生WiFi 5GHz的天線頻段，透過調整第三延伸臂A3的長度與寬度可以控制天線單元100R的第二高頻共 振模態的天線頻率落點位置。 The third antenna path formed by the second conductive portion C2 and the third extension arm A3 is in resonance with the cavity CAV to form a second high-frequency resonance mode. More specifically, the third antenna path includes a path from the feeding end FD, the matching circuit 120, the second conductive portion C2 to the third extension arm A3, which is the second high frequency that forms the antenna unit 100R by resonance with the cavity CAV. The third antenna path of the resonance mode can also generate a WiFi 5GHz antenna frequency band corresponding to the resonance. By adjusting the length and width of the third extension arm A3, the antenna frequency fall position of the second high-frequency resonance mode of the antenna unit 100R can be controlled. .

如第3圖所示的天線佈局111R中，第二導電部C2、第一延伸臂A1及第一導電部C1形成之第一天線路徑，其與空腔CAV共振形成第一高頻共振模態。第一高頻共振模態與第二高頻共振模態落在相同的天線頻帶，舉例來說均為WiFi 5GHz的天線頻段。更具體來說，第一天線路徑包含由饋入端FD、匹配電路120、第二導電部C2、第一延伸臂A1回到第一導電部C1的路徑，其與空腔CAV共振形成天線單元100R的第一高頻共振模態，即可對應共振產生WiFi 5GHz的天線頻段，透過上述第一天線路徑的總長度以及第一導電部C1的寬度可以控制天線單元100R的第一高頻共振模態的頻率落點。 In the antenna layout 111R shown in FIG. 3, the first antenna path formed by the second conductive portion C2, the first extension arm A1, and the first conductive portion C1 resonates with the cavity CAV to form a first high-frequency resonance mode. state. The first high-frequency resonance mode and the second high-frequency resonance mode fall in the same antenna frequency band, for example, both of the antenna frequency band of WiFi 5GHz. More specifically, the first antenna path includes a path from the feeding end FD, the matching circuit 120, the second conductive portion C2, and the first extension arm A1 back to the first conductive portion C1, which forms an antenna by resonating with the cavity CAV. The first high-frequency resonance mode of the unit 100R can generate an antenna frequency band of WiFi 5GHz corresponding to the resonance. The first high-frequency of the antenna unit 100R can be controlled by the total length of the first antenna path and the width of the first conductive portion C1. The frequency drop point of the resonance mode.

其中第一高頻共振模態的天線頻段高於第二高頻共振模態的天線頻段。由於天線單元100R的天線佈局111R同時具有兩個高頻共振模態，可以達到較大的高頻傳輸頻寬。於一實施例中，天線單元100R的低頻和高頻共振模態之頻寬大小與第二導電部C2之總面積有關，舉例來說，第二導電部C2的寬度愈大而總面積愈大，所形成天線頻寬愈寬。反之若第二導電部C2的寬度愈小而總面積愈小，所形成天線頻寬愈窄。 The antenna frequency band of the first high-frequency resonance mode is higher than the antenna frequency band of the second high-frequency resonance mode. Since the antenna layout 111R of the antenna unit 100R has two high-frequency resonance modes at the same time, a large high-frequency transmission bandwidth can be achieved. In one embodiment, the bandwidth of the low-frequency and high-frequency resonance modes of the antenna unit 100R is related to the total area of the second conductive portion C2. For example, the larger the width of the second conductive portion C2 and the larger the total area The wider the bandwidth of the antenna formed. Conversely, if the width of the second conductive portion C2 is smaller and the total area is smaller, the formed antenna bandwidth is narrower.

於第3圖所示的實施例中，電容121的電容值可以是2.2pF，電感122的電感值可以是3.9nH。藉由上述匹配電路的配置可以有效地改善天線單元100R的低頻共振模態的電壓駐波比(Voltage Standing Wave Ratio，VSWR)。 In the embodiment shown in FIG. 3, the capacitance value of the capacitor 121 may be 2.2 pF, and the inductance value of the inductor 122 may be 3.9 nH. The configuration of the matching circuit can effectively improve the voltage standing wave ratio (VSWR) of the low frequency resonance mode of the antenna unit 100R.

如第3圖所示的天線佈局111R中，第二導電部C2的第二角落CN2相對於第一角落CN1向內縮，且鄰近第二角落CN2的第二導電部C2與第二延伸臂A2之間具有一線形槽縫G2，線形槽縫G2設置在第二延伸臂A2下方，線形槽縫G2之側邊對齊第二延伸臂A2之側邊，線形槽縫G2用以增加第二延伸臂A2之等效長度。若未設置線形槽縫G2時，第二延伸臂A2可能需要進一步向右延伸才能落在天線單元100R的低頻共振模態的天線頻率落點位置。藉由設置線形槽縫G2時，可以縮短第二延伸臂A2的延伸長度，進而縮小天線單元100R的整體體積，於本實施例中，線形槽縫G2的寬度D5為0.5mm。 In the antenna layout 111R shown in FIG. 3, the second corner CN2 of the second conductive portion C2 is retracted inward relative to the first corner CN1, and the second conductive portion C2 and the second extension arm A2 adjacent to the second corner CN2 There is a linear slot G2 between them. The linear slot G2 is arranged below the second extension arm A2. The side of the linear slot G2 is aligned with the side of the second extension arm A2. The linear slot G2 is used to increase the second extension arm. The equivalent length of A2. If the linear slot G2 is not provided, the second extension arm A2 may need to be further extended to the right to fall on the antenna frequency fall point of the low-frequency resonance mode of the antenna unit 100R. When the linear slot G2 is provided, the extension length of the second extension arm A2 can be shortened, thereby reducing the overall volume of the antenna unit 100R. In this embodiment, the width D5 of the linear slot G2 is 0.5 mm.

於第3圖所示之實施例中，直立設置之天線單元100R的基板SUB其長×寬×高尺寸例如為40mm×5mm×0.4mm。相較於傳統平躺設置於金屬殼體210/220上的天線單元，其長×寬×高尺寸大小可能需佔用80mm×12mm×5mm體積之下，直立設置之天線單元100R具有體型小且節省空間的優勢。 In the embodiment shown in FIG. 3, the length of the substrate SUB of the antenna unit 100R disposed upright is 40 mm × 5 mm × 0.4 mm, for example. Compared with the traditional flat-laying antenna unit on the metal housing 210/220, its length × width × height size may take up less than 80mm × 12mm × 5mm volume. The upright antenna unit 100R has a small size and saves money. Advantages of space.

上述第3圖的實施例中詳細描述了本揭示文件天線單元100R其中一種天線佈局111R的詳細結構，須注意的是，另一天線單元100L也可具備與第3圖的天線單元100R相似或對稱的天線佈局。請參閱第4A圖至第4D圖，其繪示在不同實施例中第1圖中的天線單元100R與天線單元100L各自的天線佈局的相對關係。 The embodiment of FIG. 3 described above details the detailed structure of one antenna layout 111R of the antenna unit 100R of the present disclosure. It should be noted that the other antenna unit 100L may be similar to or symmetrical to the antenna unit 100R of FIG. 3. Antenna layout. Please refer to FIGS. 4A to 4D, which illustrate the relative relationship between the antenna layouts of the antenna unit 100R and the antenna unit 100L in FIG. 1 in different embodiments.

於第4A圖所示的實施例中，天線單元100R的 天線佈局111R與天線單元100L的天線佈局111L的內部結構對應於第1圖所示的側壁230上的垂直軸線AX為鏡像對稱，其中天線佈局111R的第二延伸臂A2為向右延伸，天線佈局111L的第二延伸臂A2為向左延伸，天線單元100L的天線佈局111L的詳細內容可以自第3圖的天線單元100R的實施例得知，在此不另贅述。 In the embodiment shown in FIG. 4A, the internal structure of the antenna layout 111R of the antenna unit 100R and the antenna layout 111L of the antenna unit 100L corresponds to the vertical axis AX on the side wall 230 shown in FIG. 1 as a mirror symmetry, in which the antenna The second extension arm A2 of the layout 111R extends to the right, and the second extension arm A2 of the antenna layout 111L extends to the left. The details of the antenna layout 111L of the antenna unit 100L can be obtained from the embodiment of the antenna unit 100R in FIG. 3 We do n’t repeat them here.

於第4B圖所示的實施例中，天線單元100R與天線單元100L為相同的天線佈局且天線單元100R與天線單元100L的天線佈局與第4A圖的天線單元100R的天線佈局111R相同，其中天線佈局111R的第二延伸臂A2為向右延伸，天線佈局111L的第二延伸臂A2也是向右延伸。 In the embodiment shown in FIG. 4B, the antenna unit 100R and the antenna unit 100L have the same antenna layout, and the antenna layout of the antenna unit 100R and the antenna unit 100L is the same as the antenna layout 111R of the antenna unit 100R of FIG. 4A, where the antenna The second extension arm A2 of the layout 111R extends to the right, and the second extension arm A2 of the antenna layout 111L also extends to the right.

於第4C圖所示的實施例中，係將第4A圖的天線單元100R與天線單元100L的位置對調，其中天線佈局111R的第二延伸臂A2為向左延伸，天線佈局111L的第二延伸臂A2為向右延伸。 In the embodiment shown in FIG. 4C, the positions of the antenna unit 100R and the antenna unit 100L in FIG. 4A are reversed. The second extension arm A2 of the antenna layout 111R extends to the left and the second extension of the antenna layout 111L. The arm A2 extends to the right.

於第4D圖所示的實施例中，天線單元100R與天線單元100L為相同的天線佈局且天線單元100R與天線單元100L的天線佈局與第4A圖的天線單元100L的天線佈局111L相同，其中天線佈局111R的第二延伸臂A2為向左延伸，天線佈局111L的第二延伸臂A2也是向左延伸。 In the embodiment shown in FIG. 4D, the antenna unit 100R and the antenna unit 100L have the same antenna layout and the antenna layout of the antenna unit 100R and the antenna unit 100L is the same as the antenna layout 111L of the antenna unit 100L of FIG. 4A, where the antenna The second extension arm A2 of the layout 111R extends to the left, and the second extension arm A2 of the antenna layout 111L also extends to the left.

如上所述，天線佈局111R與天線佈局111L可為鏡像對稱或相同的天線佈局，且天線單元100L亦可如第3圖的天線單元100R產生一個低頻共振模態(可對應為WiFi 2.5GHz的天線頻段)以及兩個高頻共振模態(可對應為 WiFi 5GHz的天線頻段)。 As described above, the antenna layout 111R and the antenna layout 111L may be mirror symmetrical or the same antenna layout, and the antenna unit 100L may also generate a low-frequency resonance mode (corresponding to a WiFi 2.5GHz antenna) as the antenna unit 100R in FIG. 3. Frequency band) and two high-frequency resonance modes (corresponding to the antenna frequency band of WiFi 5GHz).

如第3圖所示的天線佈局111R中包含於第二導電部C2設置的線形槽孔G1以及第二導電部C2附近設置的線形槽縫G2，但本揭示文件並不以具有線形槽孔G1以及線形槽縫G2的天線佈局111R的實施例為限。請一併參閱第5圖，其繪示根據本揭示文件之一實施例之天線單元100R另一種天線佈局112R的示意圖。於天線佈局112R當中，天線單元100R包含饋入端FD、接地端GND1以及GND2、匹配電路120、第一導電部C1、第二導電部C2、第一延伸臂A1、第二延伸臂A2以及第三延伸臂A3，上述天線部分的連接關係均與第3圖之實施例相似，在此不另贅述。相較之下，第5圖中採用天線佈局112R的天線單元100R未設置如第3圖所示的線形槽孔G1以及線形槽縫G2，且第二角落CN2並未相對於第一角落CN1向內縮。 The antenna layout 111R shown in FIG. 3 includes a linear slot G1 provided in the second conductive portion C2 and a linear slot G2 provided in the vicinity of the second conductive portion C2. However, this disclosure does not include a linear slot G1. And the embodiment of the antenna layout 111R of the linear slot G2 is limited. Please refer to FIG. 5 together, which illustrates a schematic diagram of another antenna layout 112R of the antenna unit 100R according to an embodiment of the present disclosure. In the antenna layout 112R, the antenna unit 100R includes a feeding terminal FD, ground terminals GND1 and GND2, a matching circuit 120, a first conductive portion C1, a second conductive portion C2, a first extension arm A1, a second extension arm A2, and a first For the three extension arms A3, the connection relationship of the above antenna parts is similar to the embodiment in FIG. 3, and details are not described herein. In comparison, the antenna unit 100R employing the antenna layout 112R in FIG. 5 is not provided with the linear slot G1 and the linear slot G2 as shown in FIG. 3, and the second corner CN2 is not opposite to the first corner CN1. Shrink.

在第5圖的天線佈局112R下，為達到與第3圖所示的天線單元100R的天線佈局111R的低頻共振模態，第二延伸臂A2需具備更長的延伸長度。如第5圖所示，為了避免第二延伸臂A2更向右延伸可能使得天線佈局的右側空間不足。第5圖的天線佈局112R中第二延伸臂A2的延伸段落A2e由第二延伸臂A2的右端向下彎折再向內彎折，如此一來可以充分利用基板SUB的空間，並可實現與第3圖的天線單元100R的天線佈局111R相同的低頻共振模態。 Under the antenna layout 112R of FIG. 5, in order to achieve a low-frequency resonance mode with the antenna layout 111R of the antenna unit 100R shown in FIG. 3, the second extension arm A2 needs to have a longer extension length. As shown in FIG. 5, in order to prevent the second extension arm A2 from extending further to the right, there may be insufficient space on the right side of the antenna layout. The extension section A2e of the second extension arm A2 in the antenna layout 112R in FIG. 5 is bent downward from the right end of the second extension arm A2 and then bent inward. In this way, the space of the substrate SUB can be fully utilized, and The antenna layout 111R of the antenna unit 100R in FIG. 3 has the same low-frequency resonance mode.

此外，在第5圖的天線佈局112R下，可以調整電容121的電容值以及電感122的電感值，使天線佈局112R 的阻抗匹配效果相似於第3圖之天線佈局111R的阻抗匹配效果。 In addition, under the antenna layout 112R of FIG. 5, the capacitance value of the capacitor 121 and the inductance value of the inductor 122 can be adjusted, so that the impedance matching effect of the antenna layout 112R is similar to that of the antenna layout 111R of FIG. 3.

請一併參閱第6圖以及第7圖，第6圖繪示根據本揭示文件之一實施例之天線單元100R另一種天線佈局113R的示意圖，第7圖繪示與第6圖的天線佈局113R所搭配之天線單元100L的天線佈局113L的示意圖。 Please refer to FIG. 6 and FIG. 7 together. FIG. 6 shows a schematic diagram of another antenna layout 113R of the antenna unit 100R according to an embodiment of the present disclosure. FIG. 7 shows the antenna layout 113R of FIG. 6. A schematic diagram of the antenna layout 113L of the matched antenna unit 100L.

如第6圖所示，天線單元100R的天線佈局113R設置於基板SUB上。天線單元100R包含饋入端FD、接地端GND1以及GND2、匹配電路120、第一導電部C1、第二導電部C2、第一延伸臂A1、第二延伸臂A2以及第三延伸臂A3 As shown in FIG. 6, the antenna layout 113R of the antenna unit 100R is provided on the substrate SUB. The antenna unit 100R includes a feed terminal FD, ground terminals GND1 and GND2, a matching circuit 120, a first conductive portion C1, a second conductive portion C2, a first extension arm A1, a second extension arm A2, and a third extension arm A3.

如第6圖所示，匹配電路120包含第三導電部C3以及電感122。匹配電路120的第三導電部C3電性連接饋入端FB。電感122電性連接於第三導電部C3與第二導電部C2之間。於本實施例中，電感122為1.2nH。 As shown in FIG. 6, the matching circuit 120 includes a third conductive portion C3 and an inductor 122. The third conductive portion C3 of the matching circuit 120 is electrically connected to the feeding terminal FB. The inductor 122 is electrically connected between the third conductive portion C3 and the second conductive portion C2. In this embodiment, the inductance 122 is 1.2 nH.

天線佈局113R中第一導電部C1與接地端GND1、GND2電性連接，於第6圖所示之實施例中，第一導電部C1為L字型。第二導電部C2具有位於兩相反側的第一邊緣EDG1及第二邊緣EDG2。於第6圖所示之實施例中，匹配電路120透過電感122耦接至第二導電部C2之第一邊緣EDG1的第四角落CN4，如此一來，饋入端FD便可透過匹配電路120的第三導電部C3及電感122耦接至第二導電部C2之第一邊緣EDG1，於第6圖所示之實施例中，第二導電部C2為矩形。相較於第3圖及第5圖當中的天線佈局111R或112R，第6圖中的天線佈局113R中第一導電部C1的面積較大，第一導電部 C1與接地端GND2(銅箔片或鋁箔片)連接的長度較長。匹配電路120依據上述天線佈局113R的特性，調整電感122的電感值以進行阻抗匹配。 The first conductive portion C1 in the antenna layout 113R is electrically connected to the ground terminals GND1 and GND2. In the embodiment shown in FIG. 6, the first conductive portion C1 is L-shaped. The second conductive portion C2 has a first edge EDG1 and a second edge EDG2 located on two opposite sides. In the embodiment shown in FIG. 6, the matching circuit 120 is coupled to the fourth corner CN4 of the first edge EDG1 of the second conductive portion C2 through the inductor 122, so that the feeding end FD can pass through the matching circuit 120. The third conductive portion C3 and the inductor 122 are coupled to the first edge EDG1 of the second conductive portion C2. In the embodiment shown in FIG. 6, the second conductive portion C2 is rectangular. Compared with the antenna layout 111R or 112R in Figures 3 and 5, the area of the first conductive portion C1 in the antenna layout 113R in Figure 6 is larger, and the first conductive portion C1 and the ground terminal GND2 (copper foil) Or aluminum foil). The matching circuit 120 adjusts the inductance value of the inductor 122 according to the characteristics of the antenna layout 113R to perform impedance matching.

天線佈局113R中第一延伸臂A1設置由第二導電部C2之第一邊緣EDG1的第一角落CN1延伸至第一導電部C1，且第一延伸臂A1連接第一導電部C1。 In the antenna layout 113R, the first extension arm A1 is provided to extend from the first corner CN1 of the first edge EDG1 of the second conductive portion C2 to the first conductive portion C1, and the first extension arm A1 is connected to the first conductive portion C1.

天線佈局113R中第二延伸臂A2設置由第二導電部C2之第二邊緣EDG2的第二角落CN2向外延伸。第三延伸臂A3設置由第二導電部C2之第二邊緣EDG2的第三角落CN3向外延伸。其中第二延伸臂A2之長度大於第三延伸臂A3之長度。 The second extension arm A2 in the antenna layout 113R is provided to extend outward from the second corner CN2 of the second edge EDG2 of the second conductive portion C2. The third extension arm A3 is provided to extend outward from the third corner CN3 of the second edge EDG2 of the second conductive portion C2. The length of the second extension arm A2 is greater than the length of the third extension arm A3.

天線佈局113R中第二延伸臂A2與第三延伸臂A3分別位於第二導電部C2之第二邊緣EDG2的相對兩側的第二角落CN2以及第三角落CN3，並且第二延伸臂A2與第三延伸臂A3反向延伸，如第6圖所示，第二延伸臂A2、第二導電部C2以及第三延伸臂A3大致上為T字型。第二延伸臂A2與第三延伸臂A3分別為天線單元100R在兩個不同天線頻帶的訊號收發路徑。 In the antenna layout 113R, the second extension arm A2 and the third extension arm A3 are respectively located at the second corner CN2 and the third corner CN3 on opposite sides of the second edge EDG2 of the second conductive portion C2, and the second extension arm A2 and the third The three extension arms A3 extend in the opposite direction. As shown in FIG. 6, the second extension arm A2, the second conductive portion C2, and the third extension arm A3 are substantially T-shaped. The second extension arm A2 and the third extension arm A3 are signal transmission and reception paths of the antenna unit 100R in two different antenna frequency bands, respectively.

由饋入端FD、匹配電路120、第二導電部C2至第二延伸臂A2的路徑其為與空腔CAV共振形成天線單元100R的低頻共振模態的第二天線路徑，可對應共振產生WiFi 2.4GHz的天線頻段。透過調整第二延伸臂A2的長度與寬度可以控制天線單元100R的低頻共振模態的天線頻率落點位置。 The path from the feeding end FD, the matching circuit 120, the second conductive part C2 to the second extension arm A2 is a second antenna path that forms a low-frequency resonance mode of the antenna unit 100R in resonance with the cavity CAV, and can generate resonance WiFi 2.4GHz antenna band. By adjusting the length and width of the second extension arm A2, the antenna frequency drop position of the low-frequency resonance mode of the antenna unit 100R can be controlled.

由饋入端FD、匹配電路120、第二導電部C2、第一延伸臂A1回到第一導電部C1的迴路形成的第一天線路徑與空腔CAV共振形成天線單元100R的第一高頻共振模態，可對應共振產生WiFi 5GHz的天線頻段。由饋入端FD、匹配電路120、第二導電部C2至第三延伸臂A3的路徑的第三天線路徑與空腔CAV共振形成天線單元100R的第二高頻共振模態，亦可對應共振產生WiFi 5GHz的天線頻段，透過調整第三延伸臂A3的長度與寬度可以控制天線單元100R的第二高頻共振模態的天線頻率落點位置，其中第一高頻共振模態的天線頻段高於第二高頻共振模態的天線頻段。於一實施例中，天線單元100R的低頻和高頻共振模態之頻寬大小與第二導電部C2之總面積有關。 The first antenna path formed by the loop of the feed-in terminal FD, the matching circuit 120, the second conductive portion C2, and the first extension arm A1 back to the first conductive portion C1 and the cavity CAV resonance forms the first height of the antenna unit 100R Frequency resonance mode, which can generate WiFi 5GHz antenna frequency band corresponding to resonance. The second high-frequency resonance mode of the antenna unit 100R is formed by the third antenna path of the feeding end FD, the matching circuit 120, the path of the second conductive part C2 to the third extension arm A3, and the cavity CAV resonance, and can also correspond to resonance Generate the antenna frequency band of WiFi 5GHz. By adjusting the length and width of the third extension arm A3, the antenna frequency fall position of the second high-frequency resonance mode of the antenna unit 100R can be controlled. The antenna frequency band of the first high-frequency resonance mode is high. The antenna frequency band in the second high-frequency resonance mode. In an embodiment, the bandwidth of the low-frequency and high-frequency resonance modes of the antenna unit 100R is related to the total area of the second conductive portion C2.

另一方面，與第6圖的天線佈局113R搭配的天線佈局113L係如第7圖所示，天線單元100L的天線佈局113L設置於基板SUB上。天線單元100L包含饋入端FD、接地端GND1、GND2、匹配電路120、第一導電部C1、第二導電部C2、第一延伸臂A1、第二延伸臂A2以及第三延伸臂A3。其中第7圖所示的天線單元100L的天線佈局113L的上述技術特徵與第6圖的天線佈局113R大致上相同，以下僅針對不同之處進行說明，相同之處則不再贅述。 On the other hand, the antenna layout 113L that matches the antenna layout 113R of FIG. 6 is as shown in FIG. 7, and the antenna layout 113L of the antenna unit 100L is provided on the substrate SUB. The antenna unit 100L includes a feeding terminal FD, ground terminals GND1, GND2, a matching circuit 120, a first conductive portion C1, a second conductive portion C2, a first extension arm A1, a second extension arm A2, and a third extension arm A3. The above-mentioned technical features of the antenna layout 113L of the antenna unit 100L shown in FIG. 7 are substantially the same as the antenna layout 113R of FIG. 6, and only the differences will be described below, and the same points will not be described again.

如第7圖所示，天線佈局113L中的匹配電路120包含第三導電部C3以及電容121。於本實施例中，電容121為3pF。匹配電路120的第三導電部C3電性連接饋入端FB。電容121電性連接於第三導電部C3與第二導電部C2之間。 如此一來，饋入端FD便可透過匹配電路120的第三導電部C3及電容121耦接至第二導電部C2之第一邊緣EDG1。相較於第3圖及第5圖當中的天線佈局111R或112R，第7圖中的天線佈局113L中第一導電部C1的面積較大，第一導電部C1與接地端GND2(銅箔片或鋁箔片)連接的長度較長。匹配電路120依據上述天線佈局113L的特性，調整電容121的電容值以進行阻抗匹配。 As shown in FIG. 7, the matching circuit 120 in the antenna layout 113L includes a third conductive portion C3 and a capacitor 121. In this embodiment, the capacitor 121 is 3 pF. The third conductive portion C3 of the matching circuit 120 is electrically connected to the feeding terminal FB. The capacitor 121 is electrically connected between the third conductive portion C3 and the second conductive portion C2. In this way, the feeding terminal FD can be coupled to the first edge EDG1 of the second conductive portion C2 through the third conductive portion C3 and the capacitor 121 of the matching circuit 120. Compared with the antenna layout 111R or 112R in FIGS. 3 and 5, the area of the first conductive portion C1 in the antenna layout 113L in FIG. 7 is larger, and the first conductive portion C1 and the ground terminal GND2 (copper foil) Or aluminum foil). The matching circuit 120 adjusts the capacitance value of the capacitor 121 to perform impedance matching according to the characteristics of the antenna layout 113L.

相較於第6圖的天線佈局113R，第7圖中的天線佈局113L更包含分支延伸臂A1b，分支延伸臂A1b設置於第一延伸臂A1以及第一導電部C1之間，如此一來，第二導電部C2至第一導電部C1的連通路徑將由第一延伸臂A1以及分支延伸臂A1b提供。天線佈局113L透過分支延伸臂A1b提供較短接地路徑，使其電感性變小。相較之下，不設置分支延伸臂A1b的情況下，其接地路徑較長，故電感性較大。對天線佈局113L的天線特性來說，分支延伸臂A1b具有調整阻抗匹配的作用。 Compared to the antenna layout 113R in FIG. 6, the antenna layout 113L in FIG. 7 further includes a branch extension arm A1b, and the branch extension arm A1b is disposed between the first extension arm A1 and the first conductive portion C1. The communication path from the second conductive portion C2 to the first conductive portion C1 will be provided by the first extension arm A1 and the branch extension arm A1b. The antenna layout 113L provides a shorter ground path through the branch extension arm A1b, making it less inductive. In contrast, when the branch extension arm A1b is not provided, the ground path is longer, so the inductance is larger. For the antenna characteristics of the antenna layout 113L, the branch extension arm A1b has the function of adjusting impedance matching.

於一實施例中，第7圖所示天線佈局113L的天線單元100L可作為電子裝置的主要天線，而與其搭配的第6圖所示採用天線佈局113R的天線單元100R可作為電子裝置的輔助天線。 In an embodiment, the antenna unit 100L of the antenna layout 113L shown in FIG. 7 may be used as the main antenna of the electronic device, and the antenna unit 100R employing the antenna layout 113R shown in FIG. 6 may be used as the auxiliary antenna of the electronic device. .

但本揭示文件並不以第6圖所示採用天線佈局113R及第7圖所示天線佈局113L兩者搭配使用為限，實際應用中，也可以將第6圖的天線佈局113R可以配合第3圖中的天線佈局111R或者第5圖中的天線佈局112R兩者搭配用 在第1圖當中的天線單元100R及天線單元100L上。此外，第7圖所示的天線佈局113L也可以配合第3圖中的天線佈局111R或者第5圖中的天線佈局112R兩者搭配用在第1圖當中的天線單元100R及天線單元100L上。也就是說，第3圖、第5圖、第6圖及第7圖當中任兩個天線佈局皆可以配合使用，均為本揭示文件的實施態樣。 However, this disclosure is not limited to the use of the antenna layout 113R shown in FIG. 6 and the antenna layout 113L shown in FIG. 7. In practical applications, the antenna layout 113R of FIG. 6 can also be used in conjunction with the third layout. The antenna layout 111R in the figure or the antenna layout 112R in FIG. 5 is used in conjunction with the antenna unit 100R and the antenna unit 100L in FIG. 1. In addition, the antenna layout 113L shown in FIG. 7 can also be used in conjunction with the antenna layout 111R in FIG. 3 or the antenna layout 112R in FIG. 5 on the antenna unit 100R and the antenna unit 100L in FIG. 1. That is to say, any two antenna layouts in FIG. 3, FIG. 5, FIG. 6, and FIG. 7 can be used together, which are the implementation aspects of this disclosure.

請一併參閱，第8圖繪示本揭露文件之一實施例之第3圖所示的天線單元100R的電壓駐波比(VSWR)對頻率之關係圖。第8圖的縱座標單位為電壓駐波比(VSWR)，而橫座標單位為頻率(MHz)。第8圖中曲線301為第3圖所示的天線單元100R包含匹配電路120時的電壓駐波比對頻率之關係曲線。第8圖中曲線302為第3圖所示的天線單元100R在未包含匹配電路120時的電壓駐波比對頻率之關係曲線。 Please also refer to FIG. 8, which illustrates a voltage-VSWR (VSWR) vs. frequency relationship of the antenna unit 100R shown in FIG. 3, which is an embodiment of the disclosure document. The ordinate unit of FIG. 8 is the voltage standing wave ratio (VSWR), and the abscissa unit is the frequency (MHz). Curve 301 in FIG. 8 is a relationship curve of the voltage standing wave ratio versus frequency when the antenna unit 100R shown in FIG. 3 includes the matching circuit 120. The curve 302 in FIG. 8 is a relationship curve between the voltage standing wave ratio and the frequency of the antenna unit 100R shown in FIG. 3 when the matching circuit 120 is not included.

由第8圖中可看出，天線單元100R在有包含匹配電路120時，在Wi-Fi 2.4GHz(約2400MHz~2500MHz)的電壓駐波比均在3以下，相較之下，若未進行阻抗匹配在Wi-Fi 2.4GHz的電壓駐波比則在3以上。 It can be seen from FIG. 8 that when the antenna unit 100R includes the matching circuit 120, the voltage standing wave ratio at Wi-Fi 2.4GHz (about 2400MHz ~ 2500MHz) is all below 3, compared with The voltage standing wave ratio of impedance matching at Wi-Fi 2.4GHz is above 3.

請一併參閱，第9圖繪示本揭露文件之一實施例之第4A圖所示的天線單元100R以及天線單元100L的天線電壓駐波比(VSWR)對頻率之關係圖。第9圖中曲線303為第4A圖所示的天線單元100R的天線電壓駐波比對頻率之關係曲線。第9圖中曲線304為第4A圖所示的天線單元100L的天線電壓駐波比對頻率之關係曲線。 Please also refer to FIG. 9, which illustrates the relationship between the antenna voltage standing wave ratio (VSWR) and the frequency of the antenna unit 100R and the antenna unit 100L shown in FIG. 4A, which is an embodiment of the disclosure document. Curve 303 in FIG. 9 is a relationship curve between the antenna voltage standing wave ratio and the frequency of the antenna unit 100R shown in FIG. 4A. Curve 304 in FIG. 9 is a relationship curve of the antenna voltage standing wave ratio of the antenna unit 100L shown in FIG. 4A against the frequency.

由第9圖中的曲線303可看出，第4A圖中的天線單元100R，在Wi-Fi 2.4GHz的天線電壓駐波比均在3以下，在Wi-Fi 5GHz的天線電壓駐波比也大部分落在3以下。由第9圖中的曲線304可看出，第4A圖中的天線單元100L，在Wi-Fi 2.4GHz的天線電壓駐波比均在3以下，相較之下，在Wi-Fi 5GHz的天線電壓駐波比也大部分落在3以下。顯示出第4A圖中的天線單元100R與天線單元100L均可以達到較佳的天線電壓駐波比。 It can be seen from the curve 303 in FIG. 9 that the antenna unit 100R in FIG. 4A has an antenna voltage standing wave ratio of less than 3 in Wi-Fi 2.4GHz, and an antenna voltage standing wave ratio of Wi-Fi 5GHz. Most of them fall below 3. It can be seen from the curve 304 in Fig. 9 that the antenna unit 100L in Fig. 4A has an antenna voltage standing wave ratio of less than 3 at Wi-Fi 2.4GHz, compared to an antenna at Wi-Fi 5GHz. The voltage standing wave ratio also mostly falls below 3. It is shown that both the antenna unit 100R and the antenna unit 100L in FIG. 4A can achieve a better antenna voltage standing wave ratio.

第10圖繪示第4A圖所示的天線單元100R以及天線單元100L兩者之間的隔離度(isolation)對頻率之關係圖。第10圖的縱座標單位為隔離度(dB)，而橫座標單位為頻率(MHz)，曲線305顯示位於兩側的天線單元100R以及天線單元100L彼此間的隔離度。由圖中可知，兩側天線單元100R、100L的隔離度無論在低頻或高頻處皆低於-15dB，天線單元100R、100L之間具有良好的隔離度。 FIG. 10 is a graph showing the relationship between isolation and frequency between the antenna unit 100R and the antenna unit 100L shown in FIG. 4A. The ordinate unit of FIG. 10 is the isolation (dB) and the abscissa unit is the frequency (MHz). The curve 305 shows the isolation between the antenna units 100R and 100L on both sides. As can be seen from the figure, the isolation of the antenna units 100R and 100L on both sides is lower than -15dB at low and high frequencies, and the antenna units 100R and 100L have good isolation.

接著，第11圖繪示第4A圖中的天線單元100R以及天線單元100L各自的天線效率對頻率之關係圖。第11圖的縱座標單位為天線效率(dB)，而橫座標單位為頻率(MHz)。第11圖中曲線306為天線單元100R的天線效率對頻率之關係曲線，第11圖中曲線307為天線單元100L的天線效率對頻率之關係曲線。由第11圖可了解到，天線單元100R以及天線單元100L在例如Wi-Fi 2.4GHz的天線效率為-3.9dB~-4.7dB之間，而在例如Wi-Fi 5GHz的天線效率為-2.4dB~-4.9dB之間。 Next, Fig. 11 is a graph showing the relationship between the antenna efficiency and the frequency of the antenna unit 100R and the antenna unit 100L in Fig. 4A. The ordinate unit of FIG. 11 is the antenna efficiency (dB), and the abscissa unit is the frequency (MHz). Curve 306 in FIG. 11 is a relationship curve between antenna efficiency of antenna unit 100R and frequency, and curve 307 in FIG. 11 is a relationship curve between antenna efficiency of antenna unit 100L and frequency. As can be understood from FIG. 11, the antenna efficiency of the antenna unit 100R and the antenna unit 100L is, for example, between Wi-Fi 2.4GHz and -3.9dB ~ -4.7dB, and the Wi-Fi 5GHz antenna efficiency is -2.4dB. ~~ 4.9dB.

據上所述，本揭露文件揭示的電子裝置及其天線單元實現了在金屬外殼架構下仍可保有良好天線性能的技術，且透過天線單元於鄰近側邊的塑膠槽縫處直立設置於上下金屬機殼之間並透過空腔輻射共振產生第一高頻共振模態、低頻共振模態及第二高頻共振模態，可減少電子裝置內部空間的占用，使電子裝置內部空間運用更加彈性，亦可使電子裝置的外觀體積可更進一步縮小化，再者，增設匹配電路可提升Wi-Fi 2.4GHz的阻抗匹配，使得Wi-Fi 2.4GHz的電壓駐波比均在3以下。 According to the above, the electronic device and its antenna unit disclosed in this disclosure document realize the technology that can still maintain good antenna performance under the metal shell structure, and the antenna unit is set upright on the upper and lower metal through the plastic slot adjacent to the side. The first high-frequency resonance mode, the low-frequency resonance mode, and the second high-frequency resonance mode are generated between the casings and through the cavity radiation resonance, which can reduce the occupation of the internal space of the electronic device and make the internal space of the electronic device more flexible. The appearance volume of the electronic device can be further reduced. Furthermore, the addition of a matching circuit can improve the impedance matching of Wi-Fi 2.4GHz, so that the voltage standing wave ratio of Wi-Fi 2.4GHz is less than 3.

雖然本發明之實施例已揭露如上，然其並非用以限定本發明，任何熟習此技藝者，在不脫離本發明之精神和範圍內，當可做些許之更動與潤飾，因此本發明之保護範圍當以後附之申請專利範圍所界定為準。 Although the embodiments of the present invention have been disclosed as above, it is not intended to limit the present invention. Any person skilled in the art can make some modifications and retouching without departing from the spirit and scope of the present invention, and therefore the protection of the present invention The scope shall be defined by the scope of the attached patent application.

Claims (23)

一種天線單元，設置於一電子裝置，該電子裝置包含一第一金屬殼體、一第二金屬殼體以及一金屬接地牆，該金屬接地牆連接該第一金屬殼體與該第二金屬殼體，且該第二金屬殼體具有一側壁往該第一金屬殼體延伸，且該側壁、該金屬接地牆、該第一金屬殼體與該第二金屬殼體之間形成一空腔，該天線單元設置於該空腔中並鄰近於該第二金屬殼體之該側壁上，該天線單元包含：一饋入端；一接地端；一匹配電路，分別電性連接該饋入端以及該接地端；一第一導電部，電性連接該接地端；以及一第二導電部，具有位於兩相反側的一第一邊緣及一第二邊緣，該饋入端透過該匹配電路耦接至該第二導電部之該第一邊緣；一第一延伸臂，由該第二導電部之一第一角落延伸連接至該第一導電部，該第一角落位於該第一邊緣；一第二延伸臂，由該第二導電部之一第二角落向外延伸設置，該第二角落位於該第二邊緣；以及一第三延伸臂，由該第二導電部之一第三角落向外延伸設置，該第二延伸臂之長度大於該第三延伸臂之長度，該第三角落位於該第二邊緣，其中該接地端連接至該第二金屬殼體，該第二導電部、該第一延伸臂以及該第一導電部形成之一第一天線路徑與該空腔共振形成一第一高頻共振模態，該第二導電部 與該第二延伸臂形成之一第二天線路徑與該空腔共振形成一低頻共振模態，該第二導電部與該第三延伸臂形成之一第三天線路徑與該空腔共振形成一第二高頻共振模態。     An antenna unit is provided in an electronic device. The electronic device includes a first metal case, a second metal case, and a metal ground wall. The metal ground wall connects the first metal case and the second metal case. Body, and the second metal shell has a side wall extending toward the first metal shell, and a cavity is formed between the side wall, the metal ground wall, the first metal shell and the second metal shell, the An antenna unit is disposed in the cavity and adjacent to the side wall of the second metal casing. The antenna unit includes: a feed-in terminal; a ground terminal; and a matching circuit that is electrically connected to the feed-in terminal and the A ground terminal; a first conductive portion electrically connected to the ground terminal; and a second conductive portion having a first edge and a second edge on two opposite sides, and the feeding end is coupled to the ground through the matching circuit A first edge of the second conductive portion; a first extension arm extending from a first corner of the second conductive portion to the first conductive portion, the first corner being located on the first edge; a second An extension arm formed by the second conductive portion A second corner is extended outward, the second corner is located on the second edge; and a third extension arm is extended outward from a third corner of one of the second conductive portions, and the length of the second extension arm is greater than the The length of the third extension arm, the third corner is located on the second edge, wherein the ground end is connected to the second metal shell, the second conductive portion, the first extension arm and the first conductive portion form one The first antenna path resonates with the cavity to form a first high-frequency resonance mode, the second conductive portion and the second extension arm form a second antenna path and the cavity resonate to form a low-frequency resonance mode. A third antenna path formed by the second conductive portion and the third extension arm resonates with the cavity to form a second high-frequency resonance mode.     如請求項1所述之天線單元，其中該第二延伸臂與該第三延伸臂分別位於該第二導電部之該第二邊緣的相對兩側的該第二角落以及該第三角落，並且該第二延伸臂與該第三延伸臂反向延伸。     The antenna unit according to claim 1, wherein the second extension arm and the third extension arm are respectively located at the second corner and the third corner on opposite sides of the second edge of the second conductive portion, and The second extension arm extends opposite to the third extension arm.     如請求項1所述之天線單元，其中該低頻共振模態之一頻寬大小與該第二導電部之一總面積有關。     The antenna unit according to claim 1, wherein a bandwidth of one of the low-frequency resonance modes is related to a total area of one of the second conductive portions.     如請求項1所述之天線單元，該匹配電路包含：一第三導電部，電性連接該饋入端；一電感，電性連接於該第三導電部與該接地端之間；以及一電容，電性連接於該第三導電部與該第二導電部之間，其中該電容電性連接至該第二導電部之該第一邊緣的中間位置。     The antenna unit according to claim 1, the matching circuit includes: a third conductive portion electrically connected to the feeding terminal; an inductor electrically connected between the third conductive portion and the ground terminal; and The capacitor is electrically connected between the third conductive portion and the second conductive portion, and the capacitor is electrically connected to a middle position of the first edge of the second conductive portion.     如請求項1所述之天線單元，該匹配電路包含：一第三導電部，電性連接該饋入端；以及一電感，電性連接於該第三導電部與該第二導電部之間，其中該電感電性連接至該第二導電部之一第四角落， 該第四角落位於該第一邊緣。     The antenna unit according to claim 1, the matching circuit includes: a third conductive portion, which is electrically connected to the feeding terminal; and an inductor, which is electrically connected between the third conductive portion and the second conductive portion. The inductor is electrically connected to a fourth corner of the second conductive portion, and the fourth corner is located on the first edge.     如請求項1所述之天線單元，該匹配電路包含：一第三導電部，電性連接該饋入端；以及一電容，電性連接於該第三導電部與該第二導電部之間，其中該電容電性連接至該第二導電部之一第四角落，該第四角落位於該第一邊緣。     The antenna unit according to claim 1, the matching circuit includes: a third conductive portion, which is electrically connected to the feeding terminal; and a capacitor, which is electrically connected between the third conductive portion and the second conductive portion. The capacitor is electrically connected to a fourth corner of one of the second conductive portions, and the fourth corner is located on the first edge.     如請求項1所述之天線單元，更包含一分支延伸臂，該分支延伸臂設置於該第一延伸臂以及該第一導電部之間。     The antenna unit according to claim 1, further comprising a branch extension arm disposed between the first extension arm and the first conductive portion.     如請求項1所述之天線單元，其中該第二導電部於鄰近該第一邊緣處挖設一線形槽孔，且該第二導電部環繞該線形槽孔。     The antenna unit according to claim 1, wherein the second conductive portion is excavated with a linear slot near the first edge, and the second conductive portion surrounds the linear slot.     如請求項1所述之天線單元，其中該第二角落相對於該第一角落向內縮且鄰近該第二角落的該第二導電部與該第二延伸臂之間具有一線形槽縫，該線形槽縫之一側邊對齊該第二延伸臂之一側邊，該線形槽縫用以增加該第二延伸臂之一等效長度。     The antenna unit according to claim 1, wherein the second corner is retracted inward relative to the first corner and a linear slot is formed between the second conductive portion adjacent to the second corner and the second extension arm, One side edge of the linear slot is aligned with one side edge of the second extension arm, and the linear slot is used to increase an equivalent length of the second extension arm.     一種電子裝置，包含：一第一金屬殼體； 一第二金屬殼體，具有一側壁往該第一金屬殼體延伸；一金屬接地牆，該金屬接地牆連接該第一金屬殼體與該第二金屬殼體，且該側壁、該金屬接地牆、該第一金屬殼體與該第二金屬殼體之間形成一空腔；以及至少一天線單元，設置於該空腔中並鄰近於該第二金屬殼體之該側壁，其中該至少一天線單元各自包含：一饋入端；一接地端，連接至該第二金屬殼體；一匹配電路，分別電性連接該饋入端以及該接地端；一第一導電部，電性連接該接地端；以及一第二導電部，具有位於兩相反側的一第一邊緣及一第二邊緣，該饋入端透過該匹配電路耦接至該第二導電部之該第一邊緣；一第一延伸臂，由該第二導電部之一第一角落延伸連接至該第一導電部，該第一角落位於該第一邊緣；一第二延伸臂，由該第二導電部之一第二角落向外延伸設置，該第二角落位於該第二邊緣；以及一第三延伸臂，由該第二導電部之一第三角落向外延伸設置，該第二延伸臂之長度大於該第三延伸臂之長度，該第三角落位於該第二邊緣，其中，該第二導電部、該第一延伸臂以及該第一導電部形成之一第一天線路徑與該空腔共振形成一第一高頻共 振模態，該第二導電部與該第二延伸臂形成之一第二天線路徑與該空腔共振形成一低頻共振模態，該第二導電部與該第三延伸臂形成之一第三天線路徑與該空腔共振形成一第二高頻共振模態。     An electronic device includes: a first metal casing; a second metal casing having a side wall extending toward the first metal casing; a metal ground wall, the metal ground wall connecting the first metal casing and the A second metal casing, and a cavity is formed between the side wall, the metal ground wall, the first metal casing and the second metal casing; and at least one antenna unit is disposed in the cavity and adjacent to the cavity The side wall of the second metal casing, wherein each of the at least one antenna unit includes: a feeding terminal; a ground terminal connected to the second metal casing; and a matching circuit electrically connected to the feeding terminal and the A ground terminal; a first conductive portion electrically connected to the ground terminal; and a second conductive portion having a first edge and a second edge on two opposite sides, and the feeding end is coupled to the ground through the matching circuit A first edge of the second conductive portion; a first extension arm extending from a first corner of the second conductive portion to the first conductive portion, the first corner being located on the first edge; a second An extension arm formed by the second conductive portion A second corner is extended outward, the second corner is located at the second edge; and a third extension arm is extended outward from a third corner of one of the second conductive portions, and the length of the second extension arm is greater than The length of the third extension arm, the third corner is located on the second edge, wherein a first antenna path formed by the second conductive portion, the first extension arm and the first conductive portion resonates with the cavity A first high-frequency resonance mode is formed, a second antenna path is formed by the second conductive portion and the second extension arm, and a low-frequency resonance mode is formed by resonance with the cavity, and the second conductive portion and the third The extension arm forms a third antenna path that resonates with the cavity to form a second high-frequency resonance mode.     如請求項10所述之電子裝置，其中該至少一天線單元包含一第一天線單元以及一第二天線單元，其中該第一天線單元與該第二天線單元相對該側壁之一垂直軸線為鏡像對稱。     The electronic device according to claim 10, wherein the at least one antenna unit includes a first antenna unit and a second antenna unit, wherein the first antenna unit and the second antenna unit are opposite one of the sidewalls. The vertical axis is mirror-symmetric.     如請求項10所述之電子裝置，其中該至少一天線單元包含一第一天線單元以及一第二天線單元，其中該第一天線單元與該第二天線單元採用相同佈局。     The electronic device according to claim 10, wherein the at least one antenna unit includes a first antenna unit and a second antenna unit, and wherein the first antenna unit and the second antenna unit adopt the same layout.     如請求項10所述之電子裝置，其中該至少一天線單元更包含一分支延伸臂，該分支延伸臂設置於該第一延伸臂以及該第一導電部之間。     The electronic device according to claim 10, wherein the at least one antenna unit further includes a branch extension arm disposed between the first extension arm and the first conductive portion.     如請求項10所述之電子裝置，其中該第二金屬殼體之該側壁上開設有至少一塑膠槽縫，該至少一天線單元是鄰近設置於該側壁的該至少一塑膠槽縫。     The electronic device according to claim 10, wherein the side wall of the second metal casing is provided with at least one plastic slot, and the at least one antenna unit is adjacent to the at least one plastic slot provided on the side wall.     如請求項10所述之電子裝置，其中該天線單元與該側壁平行間隔一第一距離。     The electronic device according to claim 10, wherein the antenna unit is spaced apart from the side wall by a first distance in parallel.     如請求項10所述之電子裝置，其中該第二延伸臂與該第三延伸臂分別位於該第二導電部之該第二邊緣的相對兩側的該第二角落以及該第三角落，並且該第二延伸臂與該第三延伸臂反向延伸。     The electronic device according to claim 10, wherein the second extension arm and the third extension arm are respectively located at the second corner and the third corner on opposite sides of the second edge of the second conductive portion, and The second extension arm extends opposite to the third extension arm.     如請求項10所述之電子裝置，其中該低頻共振模態之一頻寬大小與該第二導電部之一總面積有關。     The electronic device according to claim 10, wherein a bandwidth of one of the low-frequency resonance modes is related to a total area of one of the second conductive portions.     如請求項10所述之電子裝置，其中該匹配電路包含：一第三導電部，電性連接該饋入端；一電感，電性連接於該第三導電部與該接地端之間；以及一電容，電性連接於該第三導電部與該第二導電部之間，其中該電容電性連接至該第二導電部之該第一邊緣的中間位置。     The electronic device according to claim 10, wherein the matching circuit includes: a third conductive portion electrically connected to the feeding terminal; an inductor electrically connected between the third conductive portion and the ground terminal; and A capacitor is electrically connected between the third conductive portion and the second conductive portion, and the capacitor is electrically connected to a middle position of the first edge of the second conductive portion.     如請求項10所述之電子裝置，其中該匹配電路包含：一第三導電部，電性連接該饋入端；以及一電感，電性連接於該第三導電部與該第二導電部之間，其中該電感電性連接至該第二導電部之一第四角落，該第四角落位於該第一邊緣。     The electronic device according to claim 10, wherein the matching circuit includes: a third conductive portion, which is electrically connected to the feeding terminal; and an inductor, which is electrically connected to the third conductive portion and the second conductive portion. The inductor is electrically connected to a fourth corner of the second conductive portion, and the fourth corner is located on the first edge.     如請求項10所述之電子裝置，其中該匹 配電路包含：一第三導電部，電性連接該饋入端；以及一電容，電性連接於該第三導電部與該第二導電部之間，其中該電容電性連接至該第二導電部之一第四角落，該第四角落位於該第一邊緣。     The electronic device according to claim 10, wherein the matching circuit includes: a third conductive portion electrically connected to the feeding terminal; and a capacitor electrically connected to the third conductive portion and the second conductive portion. The capacitor is electrically connected to a fourth corner of the second conductive portion, and the fourth corner is located on the first edge.     如請求項10所述之電子裝置，其中該第二導電部於鄰近該第一邊緣處挖設一線形槽孔，且該第二導電部環繞該線形槽孔。     The electronic device according to claim 10, wherein the second conductive portion is excavated with a linear slot near the first edge, and the second conductive portion surrounds the linear slot.     如請求項10所述之電子裝置，其中該第二角落相對於該第一角落向內縮且鄰近該第二角落的該第二導電部與該第二延伸臂之間具有一線形槽縫，該線形槽縫之一側邊對齊該第二延伸臂之一側邊，該線形槽縫用以增加該第二延伸臂之一等效長度。     The electronic device according to claim 10, wherein the second corner is retracted inward relative to the first corner and has a linear slot between the second conductive portion adjacent to the second corner and the second extension arm, One side edge of the linear slot is aligned with one side edge of the second extension arm, and the linear slot is used to increase an equivalent length of the second extension arm.     如請求項10所述之電子裝置，更包含一分支延伸臂，該分支延伸臂設置於該第一延伸臂以及該第一導電部之間。     The electronic device according to claim 10, further comprising a branch extension arm disposed between the first extension arm and the first conductive portion.    
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