TWI330908B

TWI330908B - Integrated antenna having shorted parasitic metal strip

Info

Publication number: TWI330908B
Application number: TW96104875A
Authority: TW
Inventors: Ching Chia Mai; Cheng Han Lee; Chi Yueh Wang; Boon-Tiong Chua
Original assignee: Yageo Corp
Priority date: 2007-02-09
Filing date: 2007-02-09
Publication date: 2010-09-21
Also published as: TW200835055A

Description

1330908 九、發明說明：【發明所屬之技術領域】本發明係關於-種多頻天線，詳言之，係關於一種具有寄生短路金屬片之整合型多頻天線。【先前技術】隨著無線通訊技術的蓬勃發展，各式多頻的通訊產品也如雨後春荀般的出現’也因此無線通訊產品逐漸成為人類生活中的一部分，幾乎所有的新產品都會具備無線傳輸的功能，以滿足大幕的需求(例如：筆記型電腦或行動式多媒體裝置㈣需要資㈣輸的㈣），無料輸可以簡化其許多接線與設定上的困擾，而為達成無線傳輸的目的，無線傳輸天線的配置成為必要。然而，目前習用之無線通訊產品之天線大都只能單頻操作於2.4 GHz頻帶或部分雙頻操作（滿足2从5 2他頻帶或滿足2·4及5.8GHZ頻帶）’無法完全涵蓋目前無線區域網路所需之 2.4 GHz ( 2.4-2.484 GHz)、及5 GHz (包含 52 GHz 頻帶（5.15_5·35 GHz)及 58 GHz 頻帶 Mum GHz ))頻帶。因此，有必要提供一種創新且具進步性的具有寄生短路金屬片之整合型多頻天線，以解決上述問題。【發明内容】本發明之一目的在於提供一種具有寄生短路金屬片之整合型多頻天線’其包括：一接地金屬片、一第一輻射金屬片、一第二輻射金屬片、一短路金屬片及一第一寄生短路 117736.doc 1330908 金屬片。該接地金屬片具有一第一短路點、一第二短路點、一第一側邊、一第二側邊及一第三側邊，該第二側邊相對於該第一側邊，該第三側邊位於該第一側邊與該第二1330908 IX. Description of the Invention: [Technical Field] The present invention relates to a multi-frequency antenna, and more particularly to an integrated multi-frequency antenna having a parasitic short-circuit metal piece. [Prior Art] With the rapid development of wireless communication technology, various multi-frequency communication products have emerged like springs. 'So wireless communication products have gradually become a part of human life, and almost all new products will have wireless. The function of transmission to meet the needs of the big screen (for example: notebook computer or mobile multimedia device (4) need to be funded (4) to lose (4)), no material loss can simplify many of its wiring and setting troubles, and for the purpose of achieving wireless transmission The configuration of the wireless transmission antenna becomes necessary. However, most of the antennas of the conventional wireless communication products can only operate in the 2.4 GHz band or partially dual-frequency operation (satisfying 2 from the 5 2 band or satisfying the 2.4 and 5.8 GHz bands). The 2.4 GHz (2.4-2.484 GHz) and 5 GHz (including the 52 GHz band (5.15_5·35 GHz) and 58 GHz band Mum GHz) bands required for the network. Therefore, it is necessary to provide an innovative and progressive integrated multi-frequency antenna with parasitic short-circuit metal sheets to solve the above problems. SUMMARY OF THE INVENTION An object of the present invention is to provide an integrated multi-frequency antenna having a parasitic short-circuit metal piece, which comprises: a grounded metal piece, a first radiating metal piece, a second radiating metal piece, and a short-circuited metal piece. And a first parasitic short circuit 117736.doc 1330908 metal sheet. The grounding metal piece has a first short circuit point, a second short circuit point, a first side edge, a second side edge and a third side edge, the second side edge being opposite to the first side edge, the first side Three sides are located on the first side and the second side

側邊之間。該第一輻射金屬片位於該接地金屬片上方之相對位置，其形狀大致為一倒L型，用以產生一第一共振模態及一第二共振模態，該第—輻射金屬片具有一起始端及一末端’該起始端大致垂直於該第三側邊，該末端自該起始端上方朝一第一方向延伸。該第二輻射金屬片大致平行於該第三側邊，其自該第一輻射金屬片之該起始端朝一第二方向延伸，該第二方向相對於該第一方向，該第二輻射金屬片用以調整匹配。該短路金屬片之其形狀大致為一倒 L型，電性連接該第一輻射金屬片及該接地金屬片，該短Between the sides. The first radiating metal piece is located at a position above the grounding metal piece, and has a substantially inverted L shape for generating a first resonant mode and a second resonant mode. The first radiating metal piece has a The beginning end and the end end are substantially perpendicular to the third side edge, and the end end extends from the starting end toward a first direction. The second radiating metal piece is substantially parallel to the third side, and extends from the starting end of the first radiating metal piece toward a second direction, the second direction is opposite to the first direction, the second radiating metal piece Used to adjust the match. The short-circuited metal piece is substantially in the shape of an inverted L, electrically connecting the first radiating metal piece and the grounding metal piece, and the short

路金屬片具有一起始端及一末端，該起始端大致垂直該第一側邊且連接至該第一短路點，該末端大致平行於該第三 J邊且自該起始端上方朝該第二方向延伸。該第一寄生短路金屬片位於該第二輻射金屬片與該接地金屬片之間，且連接至該接地金屬片之該第二短路點。本發明之另—目的在於提供一種具有寄生短路金屬片之 :合型多頻天線，纟包括：一基板、一第一輻射金屬片、第轄射金屬片、-接地金屬片、至少一第一連接金屬二第-連接金屬片及U生短路金屬片。該基板 :，Λ帛《面、-第-側邊、-第二側邊及-第三側一/第—側邊相對於該第—側邊H側邊位於該第則邊與該第二側邊之間。該第一輻射金屬片形成於該基 117736.doc 1330908The metal sheet has a starting end and an end, the starting end being substantially perpendicular to the first side and connected to the first shorting point, the end being substantially parallel to the third J side and from the starting end to the second direction extend. The first parasitic short metal piece is located between the second radiating metal piece and the grounding metal piece, and is connected to the second short circuit point of the grounding metal piece. Another object of the present invention is to provide a combined multi-frequency antenna having a parasitic short-circuit metal piece, comprising: a substrate, a first radiating metal piece, a first metal plate, a grounding metal piece, and at least a first Connect the metal two-connection metal piece and the U-generated short-circuit metal piece. The substrate: Λ帛 "face, - first side, - second side, and - third side one / first side" with respect to the side of the first side H is located at the second side and the second side Between the sides. The first radiating metal sheet is formed on the base 117736.doc 1330908

板之該第一表面上’用以產生一第一共振模態及一第二共振模態，該第一輻射金屬片大致平行於該第三側邊，接近該第二側邊且朝一第一方向延伸。該第二輻射金屬片形成於該基板之該第一表面上，該第二輻射金屬片大致平行於該第一輻射金屬片，且接近該第二側邊。該接地金屬片大致平行於該第二輻射金屬片，形成於該基板之該第一表面上該第一連接金屬片用以連接該第一輻射金屬片及該第 —輻射金屬片，形成於該第一表面上。該第二連接金屬片用以連接該第一輻射金屬片及該接地金屬片，形成於該第一表面上。該第一寄生短路金屬片位於該第一輻射金屬片與該接地金屬片之間，形成於該第一表面上，且連接至該接地金屬片。由於本發明之具有寄生短路金屬片之整合型多頻天線具有至少一寄生短路金屬片，且該寄生短路金屬片可與該第一輻射金屬片及該第二輻射金屬片配合，以產生較佳之匹The first surface of the board is configured to generate a first resonant mode and a second resonant mode, the first radiating metal piece being substantially parallel to the third side, adjacent to the second side and facing the first The direction extends. The second radiating metal sheet is formed on the first surface of the substrate, the second radiating metal sheet being substantially parallel to the first radiating metal sheet and adjacent to the second side. The grounding metal piece is substantially parallel to the second radiating metal piece, and the first connecting metal piece is formed on the first surface of the substrate for connecting the first radiating metal piece and the first radiating metal piece. On the first surface. The second connecting metal piece is configured to connect the first radiating metal piece and the grounding metal piece to be formed on the first surface. The first parasitic short metal piece is located between the first radiating metal piece and the grounding metal piece, is formed on the first surface, and is connected to the grounding metal piece. Since the integrated multi-frequency antenna with parasitic short-circuit metal piece of the present invention has at least one parasitic short-circuit metal piece, and the parasitic short-circuit metal piece can be matched with the first radiation metal piece and the second radiation metal piece to produce a better match

配效果。再者’該寄生短路金屬片可用以調整該第一共振模態及該第二共振模態之共振頻率。藉此，除了可產生一低頻操作頻帶涵蓋無線區域網路2.4 GHz之頻帶操作需求外，更可產生一頻寬涵蓋無線區域網路5 GHz之頻帶操作需求，且可增加高頻頻寬。【實施方式】參考圖卜其顯示本發明第—實施例吴有寄生短路金屬片之整合型多頻天線之示意圖。該第一實施例之整合型多 117736.doc 1330908 頻天線1包括：一接地金屬片u、一第一輻射金屬片12、第一輻射金屬片13、一短路金屬片14及一第一寄生短路金屬片15。該接地金屬片u具有一第一短路點ιη、一第 —短路點112、一第—側邊113、一第二側邊114及—第三側邊11 5，該第二側邊丨14相對於該第一側邊丨13 ,該第三側邊115位於該第一側邊U3與該第二側邊U4之間。其中，5亥接地金屬片11可為鋁箔材質。邊第一輻射金屬片U位於該接地金屬片11上方之相對位置，其形狀大致為一倒^型，用以產生一第一共振模態及 —第二共振模態，該第一共振模態之頻率為2 4 GHz，該第一共振模態之頻率為5 GHz。該第一輪射金屬片具有一起始端及一末端’該起始端大致垂直於該第三側邊115, 該末端大致平行於該第三側邊115且自該起始端上方朝一第一方向延伸。該第一方向為左側方向。該起始端具有一饋入點121。另外，該接地金屬片丨丨另包括一接地點116，而該饋入點121及該接地點116用以分別與一同軸線之一訊號端及一接地端電性連接。該第二輻射金屬片13大致平行於該第三側邊115，該第 —乾射金屬片13自該第一賴射金屬片12之該起始端下方朝第一方向延伸’相對於該第一方向，該第二方向為右側方向。β玄第·一轄射金厲片13用以調整匹配。該短路金屬片14之形狀大致為_倒L型，電性連接該第一輻射金屬片12及該接地金屬片11。該短路金屬片μ具有 —起始端及一末端，該起始端大致垂直該第三側邊115且 117736.doc 1330908 . 4接至該第-短路點i"，該末端大致平行於該第三側邊 . 115且自該起始端上方朝該第二方向延伸。該第一寄生短路金屬片15位於該第二輻射金屬片13與該接地金屬片11之間，且連接至該接地金屬片u之該第二短路點112。該第一寄生短路金屬片15之形狀大致為一倒L 型，且具有一起始端及一末端。該起始端大致上垂直連接至該接地金屬片11之該第三側邊115，該末端大致平行於 Φ 該第三側邊U5且自該起始端上方朝該第二方向延伸。在該第一實施例中，該第一寄生短路金屬片15另包括至少一第一固定部151，該第一固定部151貫穿該第一寄生短路金屬片15，用以供一固定元件（圖未示出）將該整合型多頻天線1固定於一電子裝置（例如筆記型電腦）。較佳地，該固定元件係為螺絲’但該固定元件不限定為螺絲。該第一寄生短路金屬片15可與該第一輻射金屬片12及該第二轄射金屬片13配合’以產生較佳之匹配效果，並可用 • 以調整該第一共振模態及該第二共振模態之共振頻率，及增加高頻頻寬。參考圖2 ’其顯示本發明第二實施例具有寄生短路金屬片之整合型多頻天線之示意圖。該第二實施例之整合型多頻天線2包括：一接地金屬片21、一第一輻射金屬片22、一第二輻射金屬片23、一短路金屬片24、一第一寄生短路金屬片25及一第二寄生短路金屬片26。該第二實施例之整合型多頻天線2與上述圖1之該第一實施例之整合型多頻天線1不同之處在於，該第二實施例之該整合型多頻天線2另 117736.doc -10- 1330908 . 包括該第二寄生短路金屬片26。該第二寄生短路金屬片26 • 具有一起始端及一末端，該起始端接近該第一側邊213且大致垂直連接該接地金屬片21，且該第二寄生短路金屬片 26之該末端自該起始端上方大致朝該第二方向延伸至接近該第一賴射金屬片22之末端。較佳地，該第二寄生短路金屬片26亦可包括至少一第二固定部26卜用以供一固定元件（圖未示出）將該整合型多頻 ^ 天線2固定於一電子裝置。參考圖3，其顯示本發明第三實施例具有寄生短路金屬片之整σ型多頻天線之示意圖。該第三實施例之整合型多頻天線3包括：一接地金屬片31、一第一輻射金屬片32、一第二輻射金屬片33、一短路金屬片34、一第一寄生短路金屬片35及一第三寄生短路金屬片36。該第三實施例之整合型多頻天線3與上述圖丨之該第一實施例之整合型多頻天線1不同之處在於，該第三實施例之該整合型多頻天線3另籲包括違第二寄生短路金屬片36,該第三寄生短路金屬片36 之該起始端接近該第二側邊314且大致垂直連接該接地金屬片3卜且該第二寄生短路金屬片％之該末端自該起始端上方大致朝該第一方向延伸。較佳地，該第三寄生短路金屬片36亦可包括至少一第三 ^ 361用以供一固定元件（圖未示出）將該整合型多頻天線3固定於一電子裝置。參考圖4’其顯示本發明第四實施例具有寄生短路金屬片之正0型多頻天線之示意圖。該第四實施例之整合型多 I17736.doc • II. 1330908 頻天線4包括：一接地金屬片41、一第一輻射金屬片42、一第一輻射金屬片43、一短路金屬片44、一第一寄生短路金屬片45、一第二寄生短路金屬片46及一第三寄生短路金屬片47。該第四實施例之整合型多頻天線*與上述圖1之該第一實施例之整合型多頻天線1不同之處在於，該第四實施例之整合型多頻天線4另包括該第二寄生短路金屬片46 及該第三寄生短路金屬片47。其中，該第二寄生短路金屬片46具有一起始端及一末端，該第二寄生短路金屬片46之該起始端接近該第一側邊413且大致垂直連接該接地金屬片41，且該第二寄生短路金屬片46之該末端自該起始端上方大致朝該第二方向延伸；該第三寄生短路金屬片47具有一起始端及一末端’該第三寄生短路金屬片47之該起始端接近該第二側邊414且大致垂直連接該接地金屬片41，且 s玄第三寄生短路金屬片47之該末端自該起始端上方大致朝該第一方向延伸。較佳地，該第二寄生短路金屬片46亦可包括至少一第二固定部461 ’該第三寄生短路金屬片47亦可包括至少一第二固定部471用以供一固定元件（圖未示出）將該整合型多頻天線4固定於一電子裝置。參考圖5A’其顯示本發明第五實施例具有寄生短路金屬片之整合型多頻天線之示意圖。該第五實施例之整合型多頻天線5包括：—基板51、一第一輻射金屬片52、一第二輻射金屬片53、-接地金屬片54、-第-連接金屬片55、一第二連接金屬片56及一第一寄生短路金屬片57。該基板 I17736.doc •12· 51具有—第一表面511、一第一側邊512 '一第二側邊5i3 及第二側邊5 14，該第二側邊5 13相對於該第一侧邊 5 12 ’邊第三側邊5丨4位於該第一側邊5丨2與該第二側邊5 i 3 之間。該第一輕射金屬片52形成於該基板之該第一表面511 上，用以產生一第一共振模態及一第二共振模態，該第一共振模態之頻率為2·4 GHz，該第二共振模態之頻率為5 GHz。該第一輻射金屬片52大致平行於該第三側邊514，接近該第二側邊5 13且朝該第一方向延伸。該第二輻射金屬片53形成於該基板51之該第一表面511 上，该第二輻射金屬片53大致平行於該第一輻射金屬片 52，且接近該第二側邊513。該第二輻射金屬片53係用以調整匹配。該第二輻射金屬片與該第一連接金屬片55連接處具有一饋入點531，該接地金屬片52具有一接地點521 ’ 該饋入點531及該接地點521用以分別與一同轴線（圖未示出）之一訊號端及一接地端電性連接。該接地金屬片54大致平行於該第二輻射金屬片53，其形成於該基板51之該第一表面511上。該第一連接金屬片55 用以連接該第一輻射金屬片52及該第二輻射金屬片53，其形成於該第一表面511上。該第一連接金屬片55約略與該第—輻射金屬片52及該第二輻射金屬片53垂直。該第二連接金屬片56設置於該第二側邊513，其形成於該第一表面 511 上。在該第五實施例中，該第一連接金屬片55係連接該第一 117736.doc •13- 1330908 轄射金屬片52之中間部分及該第二輻射金屬片53之中間部分，而該第二連接金屬片56連接該第一輻射金屬片52、該第二轄射金屬片53及該接地金屬片54 » 參考圖5B，在其他應用中，該第一連接金屬片55可連接該第一輻射金屬片52之中間部分及該第二輻射金屬片53之知而6玄第一連接金屬片56僅連接該第一輻射金屬片52 及該接地金屬片54。 # 再參考圖5A，該第一寄生短路金屬片5 7位於該第一輻射金屬片52與該接地金屬片54之間，其形成於該基板51之該第一表面511上’且連接至該接地金屬片54。該第一寄生紐路金屬片57之形狀大致為一倒[型，且具有一起始端及 —末端，該起使端大致上垂直連接至該接地金屬片54，該末端自該起始端上方延伸且大致平行於該第一輻射金屬片 52，且朝該第一方向延伸。要注意的是，在該第五實施例中另可包括至少一第一固定部58貫穿該接地金屬片M及該 • 基碑51’用以供一固定元件將該整合型多頻天線5固定於 —電子裝置。較佳地，該nm件係為螺絲，但該固定元件不限定為螺絲。參考圖6，其顯示本發明第六實施例具有寄生短路金屬片之整合型多頻天線之示意圖。該第六實施例之整合型多頻天線6包括·一基板61、一第一輻射金屬片62、一第二轄射金屬片63、-接地金屬片64、至少一第一連接金屬片 65 一第二連接金屬㈣、-第-寄生短路金屬片67及一第二寄生短路金屬片68。該第六實施例之整合型多頻天線 117736.doc 1330908 6與上述圖5A之該第五實施例之整合型多頻天線5不同之處在於，該第六實施例之該整合型多頻天線6另包括該第二寄生短路金屬片68，該第二寄生短路金屬片68具有一起始知及·末端’該第·-寄生短路金屬片6 8之該起始端設置於該第一側邊612且垂直連接該接地金屬片64，且該第二寄生短路金屬片68之該末端大致朝該第二方向延伸且接近該第一輕射金屬片62之末端。參考圖7，其顯示本發明第七實施例具有寄生短路金屬片之整合型多頻天線之不意圖。該第七實施例之整合型多頻天線7包括：一基板71、一第一輻射金屬片72、一第二輻射金屬片73、一接地金屬片74、至少一第一連接金屬片 75、一第二連接金屬片76、一第一寄生短路金屬片77及_ 第三寄生短路金屬片78。該第七實施例之整合型多頻天線與上述圖5 A之該第五實施例之整合型多頻天線5不同之處在於，該第七實施例之該整合型多頻天線7另包括該第三寄生短路金屬片78，該第三寄生短路金屬片π具有一起始端及一末端’該第三寄生短路金屬片78之該起始端設置於該第二側邊71 3且大致垂直連接該接地金屬片71，且該第三寄生短路金屬片78之該末端自該起始端上方大致朝該第一方向延伸。參考圖8’其顯示本發明第八實施例具有寄生短路金屬片之整合型多頻天線之示意圖。該第八實施例之整合型多頻天線8包括：一基板81、一第一輻射金屬片82、一第二輻射金屬片83、一接地金屬片84、至少一第一連接金屬片 117736.doc -15- 1330908 85、一第二連接金屬片86、一第一寄生短路金屬片87、一第二寄生短路金屬片88及一第三寄生短路金屬片89。該第八實施例之整合型多頻天線8與上述圖5A之該第五實施例之整合型多頻天線5不同之處在於，該第八實施例之該整合型多頻天線8另包括該第二寄生短路金屬月88及該第三寄生短路金屬片89。該第二寄生短路金屬片88具有一起始知1及一末端。該第一寄生短路金屬片88之該起始端設置於該第一側邊812且大致垂直連接該接地金屬片81，且該第二寄生短路金屬片88之該末端自該起始端上方大致朝該第二方向延伸；該第三寄生短路金屬片89具有一起始端及一末端’該第三寄生短路金屬片89之該起始端設置於該第二側邊813且大致垂直連接該接地金屬片81，且該第三寄生短路金屬片89之該末端自該起始端上方大致朝該第一方向延伸。如上各實施例中所述，由於本發明之具有寄生短路金屬片之整合型多頻天線具有至少一寄生短路金屬片，且該寄生短路金屬片可與該第一輻射金屬片及該第二輻射金屬片配合’以產生較佳之匹配效果。再者，該寄生短路金屬片可用以調整該第一共振模態及該第二共振模態之共振頻率。藉此，除了可產生一低頻操作頻帶涵蓋無線區域網路2.4 GHz之頻帶操作需求外，更可產生一頻寬涵蓋無線區域網路5 GHz之頻帶操作需求， i可增加高頻頻寬。惟上述實施例僅為說明本發明之原理及其功效，而非用 H7736.doc -16· 1330908 以限制本發明。因此，習於此技術之人士對上述實施例進行修改及變化仍不脫本發明之精神。本發明之權利範圍應如後述之申請專利範圍所列。【圖式簡單說明】圖1顯示本發明第一實施例具有寄生短路金屬片之整合型多頻天線之示意圖；圖2顯示本發明第二實施例具有寄生短路金屬片之整合型多頻天線之示意圖；圖3顯示本發明第三實施例具有寄生短路金屬片之整合型多頻天線之示意圖；圖4顯示本發明第四實施例具有寄生短路金屬片之整合型多頻天線之示意圖；圖5A顯示本發明第五實施例具有寄生短路金屬片之整合型多頻天線之第一態樣示意圖；圖5B顯示本發明第五實施例具有寄生短路金屬片之整合型多頻天線之第二態樣示意圖；圖6顯示本發明第六實施例具有寄生短路金屬片之整合型多頻天線之示意圖；圖7顯示本發明第七實施例具有寄生短路金屬片之整合型多頻天線之示意圖；及圖8顯示本發明第八實施例具有寄生短路金屬片之整合型多頻天線之示意圖。【主要元件符號說明】 1 本發明第一實施例具有寄生短路金屬片之整合With the effect. Furthermore, the parasitic short metal strip can be used to adjust the resonant frequency of the first resonant mode and the second resonant mode. In this way, in addition to generating a low-frequency operating band covering the bandwidth requirements of the 2.4 GHz band of the wireless local area network, a frequency bandwidth covering the band operation of the wireless local area network of 5 GHz can be generated, and the high frequency bandwidth can be increased. [Embodiment] Referring to Fig. 2, there is shown a schematic view of an integrated multi-frequency antenna having a parasitic short-circuit metal piece according to a first embodiment of the present invention. The integrated multi-117736.doc 1330908 frequency antenna 1 of the first embodiment comprises: a grounding metal piece u, a first radiating metal piece 12, a first radiating metal piece 13, a short-circuiting metal piece 14, and a first parasitic short circuit. Metal sheet 15. The grounding strip u has a first shorting point ιη, a first shorting point 112, a first side 113, a second side 114, and a third side 117. The second side 丨 14 is opposite. The first side edge 115 is located between the first side edge U3 and the second side edge U4. Among them, the 5H ground metal piece 11 can be made of aluminum foil. The first radiating metal piece U is located at a position above the grounding metal piece 11 and has a substantially inverted shape for generating a first resonant mode and a second resonant mode, the first resonant mode The frequency is 24 GHz and the frequency of the first resonant mode is 5 GHz. The first shot metal sheet has a starting end and an end end. The starting end is substantially perpendicular to the third side edge 115. The end end is substantially parallel to the third side edge 115 and extends from the starting end toward a first direction. The first direction is the left direction. The start end has a feed point 121. In addition, the grounding metal strip further includes a grounding point 116, and the feeding point 121 and the grounding point 116 are respectively electrically connected to one of the signal ends of the coaxial line and a grounding end. The second radiating metal sheet 13 is substantially parallel to the third side 115, and the first dry metal sheet 13 extends from the starting end of the first facing metal sheet 12 toward the first direction. Direction, the second direction is the right direction.玄玄第一·一治射金厉片13 is used to adjust the match. The short-circuited metal piece 14 is substantially in the shape of an inverted L-type electrically connected to the first radiating metal piece 12 and the grounded metal piece 11. The shorting metal piece μ has a starting end and an end, the starting end is substantially perpendicular to the third side 115 and 117736.doc 1330908 . 4 is connected to the first shorting point i", the end is substantially parallel to the third side Edge 115 extends from the beginning end toward the second direction. The first parasitic short metal piece 15 is located between the second radiating metal piece 13 and the grounding metal piece 11 and is connected to the second short circuit point 112 of the grounding metal piece u. The first parasitic short metal strip 15 has a substantially inverted L shape and has an initial end and an end. The starting end is substantially vertically connected to the third side 115 of the grounding metal sheet 11, the end being substantially parallel to the third side U5 and extending from the starting end toward the second direction. In the first embodiment, the first parasitic short metal strip 15 further includes at least one first fixing portion 151. The first fixing portion 151 extends through the first parasitic short metal sheet 15 for a fixing component. The integrated multi-frequency antenna 1 is not fixed to an electronic device (for example, a notebook computer). Preferably, the fixing member is a screw 'but the fixing member is not limited to a screw. The first parasitic short metal piece 15 can cooperate with the first radiating metal piece 12 and the second conditioned metal piece 13 to produce a better matching effect, and can be used to adjust the first resonant mode and the second The resonant frequency of the resonant mode, and the increase of the high frequency bandwidth. Referring to Fig. 2', there is shown a schematic view of an integrated multi-frequency antenna having a parasitic short-circuit metal piece according to a second embodiment of the present invention. The integrated multi-frequency antenna 2 of the second embodiment includes: a grounding metal piece 21, a first radiating metal piece 22, a second radiating metal piece 23, a short-circuiting metal piece 24, and a first parasitic short-circuit metal piece 25. And a second parasitic short metal piece 26. The integrated multi-frequency antenna 2 of the second embodiment is different from the integrated multi-frequency antenna 1 of the first embodiment of FIG. 1 in that the integrated multi-frequency antenna 2 of the second embodiment is further 117736. Doc -10- 1330908. The second parasitic short metal piece 26 is included. The second parasitic short metal piece 26 has a starting end and an end. The starting end is adjacent to the first side 213 and is substantially perpendicularly connected to the grounding metal piece 21, and the end of the second parasitic short metal piece 26 is from the end The upper end of the starting end extends substantially toward the second direction to approach the end of the first viewing metal sheet 22. Preferably, the second parasitic short metal piece 26 may further include at least one second fixing portion 26 for fixing a integrated multi-frequency antenna 2 to an electronic device by a fixing component (not shown). Referring to Fig. 3, there is shown a schematic view of a sigma-type multi-frequency antenna having a parasitic short-circuit metal piece according to a third embodiment of the present invention. The integrated multi-frequency antenna 3 of the third embodiment includes a grounding metal piece 31, a first radiating metal piece 32, a second radiating metal piece 33, a short-circuiting metal piece 34, and a first parasitic short-circuit metal piece 35. And a third parasitic short metal piece 36. The integrated multi-frequency antenna 3 of the third embodiment is different from the integrated multi-frequency antenna 1 of the first embodiment described above in that the integrated multi-frequency antenna 3 of the third embodiment is additionally included. In violation of the second parasitic short metal piece 36, the starting end of the third parasitic short metal piece 36 is adjacent to the second side 314 and substantially perpendicularly connects the ground metal piece 3 and the end of the second parasitic short metal piece Extending generally upward from the starting end toward the first direction. Preferably, the third parasitic short metal piece 36 may further include at least one third 361 for a fixing component (not shown) to fix the integrated multi-frequency antenna 3 to an electronic device. Referring to Fig. 4', there is shown a schematic diagram of a positive-type 0 multi-frequency antenna having a parasitic short-circuit metal piece according to a fourth embodiment of the present invention. The integrated type I17736.doc of the fourth embodiment: II. 1330908 frequency antenna 4 includes: a grounding metal piece 41, a first radiating metal piece 42, a first radiating metal piece 43, a short metal piece 44, and a The first parasitic short metal strip 45, a second parasitic short metal strip 46, and a third parasitic short metal strip 47. The integrated multi-frequency antenna* of the fourth embodiment is different from the integrated multi-frequency antenna 1 of the first embodiment of FIG. 1 in that the integrated multi-frequency antenna 4 of the fourth embodiment further includes the first The second parasitic short metal piece 46 and the third parasitic short metal piece 47. The second parasitic short metal piece 46 has a starting end and an end. The starting end of the second parasitic short metal piece 46 is adjacent to the first side 413 and is substantially perpendicularly connected to the grounding metal piece 41, and the second The end of the parasitic short metal piece 46 extends substantially upward from the starting end toward the second direction; the third parasitic short metal piece 47 has a starting end and an end. The starting end of the third parasitic short metal piece 47 is adjacent to the end The second side 414 is substantially perpendicularly connected to the ground metal sheet 41, and the end of the s-th third parasitic short metal sheet 47 extends substantially upward from the starting end toward the first direction. Preferably, the second parasitic short metal strip 46 can also include at least one second fixing portion 461 ′. The third parasitic short metal sheet 47 can also include at least one second fixing portion 471 for a fixing component. The integrated multi-frequency antenna 4 is shown fixed to an electronic device. Referring to Fig. 5A', there is shown a schematic view of an integrated multi-frequency antenna having a parasitic short-circuit metal piece according to a fifth embodiment of the present invention. The integrated multi-frequency antenna 5 of the fifth embodiment comprises: a substrate 51, a first radiating metal piece 52, a second radiating metal piece 53, a grounding metal piece 54, a first connecting metal piece 55, and a first Two connecting metal pieces 56 and a first parasitic short metal piece 57. The substrate I17736.doc •12· 51 has a first surface 511, a first side 512 ′ a second side 5i3 and a second side 5 14 . The second side 5 13 is opposite to the first side The third side 5丨4 of the side 5 12 ′ is located between the first side edge 5丨2 and the second side edge 5 i 3 . The first light-emitting metal piece 52 is formed on the first surface 511 of the substrate for generating a first resonant mode and a second resonant mode. The frequency of the first resonant mode is 2.4 GHz. The frequency of the second resonant mode is 5 GHz. The first radiating metal sheet 52 is substantially parallel to the third side 514, adjacent to the second side edge 513 and extending toward the first direction. The second radiating metal piece 53 is formed on the first surface 511 of the substrate 51. The second radiating metal piece 53 is substantially parallel to the first radiating metal piece 52 and is adjacent to the second side edge 513. The second radiating metal piece 53 is used to adjust the matching. The second radiating metal piece and the first connecting metal piece 55 have a feeding point 531 at the junction of the first connecting metal piece 55. The grounding metal piece 52 has a grounding point 521 '. The feeding point 531 and the grounding point 521 are respectively used together One of the signal terminals (not shown) is electrically connected to a ground terminal. The grounding metal piece 54 is substantially parallel to the second radiating metal piece 53, which is formed on the first surface 511 of the substrate 51. The first connecting metal piece 55 is used to connect the first radiating metal piece 52 and the second radiating metal piece 53 to the first surface 511. The first connecting metal piece 55 is approximately perpendicular to the first radiating metal piece 52 and the second radiating metal piece 53. The second connecting metal piece 56 is disposed on the second side 513 and is formed on the first surface 511. In the fifth embodiment, the first connecting metal piece 55 is connected to the middle portion of the first 117736.doc • 13-1330908 urging metal piece 52 and the middle portion of the second radiating metal piece 53. The second connecting metal piece 56 is connected to the first radiating metal piece 52, the second conditioned metal piece 53 and the grounding metal piece 54. Referring to FIG. 5B, in other applications, the first connecting metal piece 55 can be connected to the first The intermediate portion of the radiating metal piece 52 and the second radiating metal piece 53 are connected to the first radiating metal piece 52 and the grounding metal piece 54 only. Referring to FIG. 5A, the first parasitic short metal piece 57 is located between the first radiating metal piece 52 and the grounding metal piece 54, which is formed on the first surface 511 of the substrate 51 and connected to the Grounding metal sheet 54. The first parasitic barrier metal sheet 57 has a substantially inverted shape and has a starting end and a - end, the leading end being substantially perpendicularly connected to the grounding metal piece 54, the end extending from the starting end and It is substantially parallel to the first radiating metal piece 52 and extends toward the first direction. It is to be noted that in the fifth embodiment, at least one first fixing portion 58 is inserted through the grounding metal piece M and the base plate 51' for fixing a integrated multi-frequency antenna 5 by a fixing component. - Electronic devices. Preferably, the nm member is a screw, but the fixing member is not limited to a screw. Referring to Fig. 6, there is shown a schematic view of an integrated multi-frequency antenna having a parasitic short-circuit metal piece according to a sixth embodiment of the present invention. The integrated multi-frequency antenna 6 of the sixth embodiment comprises a substrate 61, a first radiating metal piece 62, a second conditioned metal piece 63, a grounding metal piece 64, and at least one first connecting metal piece 65. The second connection metal (4), the -th parasitic short metal piece 67 and a second parasitic short metal piece 68. The integrated multi-frequency antenna 117736.doc 1330908 6 of the sixth embodiment is different from the integrated multi-frequency antenna 5 of the fifth embodiment of FIG. 5A in that the integrated multi-frequency antenna of the sixth embodiment 6 further comprising the second parasitic short metal strip 68, the second parasitic short metal strip 68 having a starting end and an end end. The starting end of the first parasitic short metal strip 68 is disposed on the first side 612. The grounding metal piece 64 is vertically connected, and the end of the second parasitic short metal piece 68 extends substantially toward the second direction and is adjacent to the end of the first light-emitting metal piece 62. Referring to Fig. 7, there is shown a schematic view of an integrated multi-frequency antenna having a parasitic short-circuit metal piece according to a seventh embodiment of the present invention. The integrated multi-frequency antenna 7 of the seventh embodiment includes a substrate 71, a first radiating metal piece 72, a second radiating metal piece 73, a grounding metal piece 74, at least one first connecting metal piece 75, and a The second connection metal piece 76, a first parasitic short metal piece 77, and a third parasitic short metal piece 78. The integrated multi-frequency antenna of the seventh embodiment is different from the integrated multi-frequency antenna 5 of the fifth embodiment of FIG. 5A in that the integrated multi-frequency antenna 7 of the seventh embodiment further includes the integrated multi-frequency antenna 7 of the seventh embodiment. a third parasitic short metal piece 78 having a starting end and an end. The starting end of the third parasitic short metal piece 78 is disposed on the second side 71 3 and is substantially perpendicularly connected to the ground. The metal piece 71, and the end of the third parasitic short metal piece 78 extends substantially in the first direction from above the starting end. Referring to Fig. 8', there is shown a schematic diagram of an integrated multi-frequency antenna having a parasitic short-circuit metal piece according to an eighth embodiment of the present invention. The integrated multi-frequency antenna 8 of the eighth embodiment comprises: a substrate 81, a first radiating metal piece 82, a second radiating metal piece 83, a grounding metal piece 84, and at least one first connecting metal piece 117736.doc -15- 1330908 85, a second connecting metal piece 86, a first parasitic short metal piece 87, a second parasitic short metal piece 88 and a third parasitic short metal piece 89. The integrated multi-frequency antenna 8 of the eighth embodiment is different from the integrated multi-frequency antenna 5 of the fifth embodiment of FIG. 5A in that the integrated multi-frequency antenna 8 of the eighth embodiment further includes the integrated multi-frequency antenna 8 of the eighth embodiment. The second parasitic short metal period 88 and the third parasitic short metal sheet 89. The second parasitic short metal strip 88 has an initial 1 and an end. The starting end of the first parasitic short metal piece 88 is disposed on the first side 812 and is substantially perpendicularly connected to the grounding metal piece 81, and the end of the second parasitic shorting metal piece 88 is substantially upward from the starting end. The third parasitic short metal piece 89 has a starting end and an end. The starting end of the third parasitic short metal piece 89 is disposed on the second side 813 and is substantially perpendicularly connected to the grounding metal piece 81. And the end of the third parasitic short metal piece 89 extends substantially upward from the starting end toward the first direction. As described in the above embodiments, the integrated multi-frequency antenna having the parasitic short-circuit metal piece of the present invention has at least one parasitic short-circuit metal piece, and the parasitic short-circuit metal piece and the first radiation metal piece and the second radiation The metal piece is combined to 'produce a better matching effect. Furthermore, the parasitic short metal strip can be used to adjust the resonant frequency of the first resonant mode and the second resonant mode. In this way, in addition to generating a low-frequency operating band covering the bandwidth requirements of the 2.4 GHz band of the wireless local area network, a frequency bandwidth covering the bandwidth operation of the wireless local area network of 5 GHz can be generated, and i can increase the high frequency bandwidth. However, the above examples are merely illustrative of the principles of the invention and its efficacy, and are not intended to limit the invention by the use of H7736.doc -16.1330908. Therefore, those skilled in the art can devise modifications and variations of the embodiments described above without departing from the spirit of the invention. The scope of the invention should be as set forth in the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing an integrated multi-frequency antenna having a parasitic short-circuit metal piece according to a first embodiment of the present invention; FIG. 2 is a view showing an integrated multi-frequency antenna having a parasitic short-circuit metal piece according to a second embodiment of the present invention; 3 is a schematic view showing an integrated multi-frequency antenna having a parasitic short-circuit metal piece according to a third embodiment of the present invention; FIG. 4 is a schematic view showing an integrated multi-frequency antenna having a parasitic short-circuit metal piece according to a fourth embodiment of the present invention; A first aspect of an integrated multi-frequency antenna having a parasitic short-circuit metal piece according to a fifth embodiment of the present invention; and FIG. 5B is a second aspect of the integrated multi-frequency antenna having a parasitic short-circuit metal piece according to a fifth embodiment of the present invention; Figure 6 is a schematic view showing an integrated multi-frequency antenna having a parasitic short-circuit metal piece according to a sixth embodiment of the present invention; Figure 7 is a view showing an integrated multi-frequency antenna having a parasitic short-circuit metal piece according to a seventh embodiment of the present invention; 8 is a schematic view showing an integrated multi-frequency antenna having a parasitic short-circuit metal piece according to an eighth embodiment of the present invention. [Main component symbol description] 1 The first embodiment of the present invention has the integration of a parasitic short-circuit metal piece

Il7736.doc 17 1330908Il7736.doc 17 1330908

2 型多頻天線本發明第二實施例之整合型多頻天線 3 本發明第三實施例之整合型多頻天線 4 本發明第四實施例之整合型多頻天線 5 本發明第五實施例具有寄生短路金屬片之整合 6 型多頻天線本發明第六實施例具有寄生短路金屬片之整合 7 型多頻天線本發明第七實施例具有寄生短路金屬片之整合 8 型多頻天線本發明第八實施例具有寄生短路金屬片之整合 11 型多頻天線接地金屬片 12 第一輻射金屬片 13 第二輻射金屬片 14 短路金屬片 15 第一寄生短路金屬片 21 接地金屬片 22 第一輻射金屬片 23 第二輻射金屬片 24 短路金屬片 25 第一寄生短路金屬片 26 第二寄生短路金屬月 31 接地金屬片 I17736.doc -18- 1330908Type 2 multi-frequency antenna, integrated multi-frequency antenna 3 of the second embodiment of the present invention, integrated multi-frequency antenna 4 of the third embodiment of the present invention, integrated multi-frequency antenna 5 of the fourth embodiment of the present invention Integrated 6-type multi-frequency antenna with parasitic short-circuit metal piece. Integrated seventh-type multi-frequency antenna with parasitic short-circuit metal piece according to a seventh embodiment of the present invention. The eighth embodiment has an integrated 11-type multi-frequency antenna grounded metal piece 12 with a parasitic short-circuit metal piece, a first radiating metal piece 13, a second radiating metal piece 14, a short-circuited metal piece 15, a first parasitic short-circuit metal piece 21, a grounded metal piece 22, a first radiation Metal sheet 23 second radiating metal sheet 24 shorted metal sheet 25 first parasitic short metal sheet 26 second parasitic short metal period 31 grounding metal sheet I17736.doc -18- 1330908

32 第一輻射金屬片 33 第二輻射金屬片 34 短路金屬片 35 第一寄生短路金屬片 36 第三寄生短路金屬片 41 接地金屬片 42 第一輻射金屬片 43 第二輻射金屬片 44 短路金屬片 45 第一寄生短路金屬片 46 第二寄生短路金屬片 47 第三寄生短路金屬片 51 基板 52 第一輻射金屬片 53 第二輻射金屬片 54 接地金屬片 55 第一連接金屬片 56 第二連接金屬片 57 第一寄生短路金屬片 58 第一固定部 61 基板 62 第一輻射金屬片 63 第二輻射金屬片 64 接地金屬片 117736.doc -19- 133090832 first radiating metal piece 33 second radiating metal piece 34 short-circuiting metal piece 35 first parasitic short-circuiting metal piece 36 third parasitic short-circuiting metal piece 41 grounding metal piece 42 first radiating metal piece 43 second radiating metal piece 44 short-circuiting metal piece 45 first parasitic short metal sheet 46 second parasitic short metal sheet 47 third parasitic short metal sheet 51 substrate 52 first radiating metal sheet 53 second radiating metal sheet 54 grounding metal sheet 55 first connecting metal sheet 56 second connecting metal Sheet 57 first parasitic short metal sheet 58 first fixing portion 61 substrate 62 first radiating metal sheet 63 second radiating metal sheet 64 grounding metal sheet 117736.doc -19- 1330908

65 第一連接金属片 66 第二連接金屬片 67 寄生短路金屬片 68 第二寄生短路金屬片 71 基板 72 第一輻射金屬片 73 第二輻射金屬片 74 接地金屬片 75 第一連接金屬片 76 第二連接金屬片 77 寄生短路金屬片 78 第三寄生短路金屬片 81 基板 82 第一輻射金屬片 83 第二韓射金屬片 84 接地金屬片 85 第一連接金屬片 86 第二連接金屬片 87 寄生短路金屬片 88 第二寄生短路金屬片 89 第三寄生短路金屬片 111 第一短路點 112 第二短路點 113 第一側邊 •20- 117736.doc 133090865 first connecting metal piece 66 second connecting metal piece 67 parasitic short metal piece 68 second parasitic short metal piece 71 substrate 72 first radiating metal piece 73 second radiating metal piece 74 grounding metal piece 75 first connecting metal piece 76 Second connecting metal piece 77 Parasitic short metal piece 78 Third parasitic short metal piece 81 Substrate 82 First radiating metal piece 83 Second Korean metal piece 84 Grounding metal piece 85 First connecting metal piece 86 Second connecting metal piece 87 Parasitic short circuit Metal piece 88 second parasitic short metal piece 89 third parasitic short metal piece 111 first short circuit point 112 second short circuit point 113 first side side • 20-117736.doc 1330908

114 第二側邊 115 第三側邊 116 接地點 121 饋入點 151 第一固定部 213 第一側邊 214 第二側邊 261 第二固定部 313 第一側邊 314 第二側邊 361 第三固定部 413 第一側邊 414 第二側邊 461 第二固定部 471 第三固定部 511 第一表面 512 第一側邊 513 第二側邊 514 第三側邊 521 接地點 531 饋入點 612 第一側邊 613 第二側邊 712 第一側邊 117736.doc -21 1330908 713 第二側邊 812 第一側邊 813 第二側邊114 second side 115 third side 116 grounding point 121 feeding point 151 first fixing part 213 first side 214 second side 261 second fixing part 313 first side 314 second side 361 third Fixing portion 413 First side 414 Second side 461 Second fixing portion 471 Third fixing portion 511 First surface 512 First side 513 Second side 514 Third side 521 Ground point 531 Feed point 612 One side 613 second side 712 first side 117736.doc -21 1330908 713 second side 812 first side 813 second side

117736.doc •22117736.doc •22

Claims

Patent Application No. 096104875 Replaces the scope of patent application in Chinese (February 99) ----j Ten, application for patent garden: price B-month Shen Xiu (Phantom replacement page --- jt 1 · A parasitic short circuit The integrated multi-frequency antenna of the metal sheet includes: a substrate having a first surface, a first side, a second side, and a second side, the first side being opposite to the first side The first side is located between the first side and the second side; a first radiating metal piece is formed on the first surface of the substrate for generating a first resonant mode and a a second resonant mode, the first radiating metal piece is substantially parallel to the third side, adjacent to the second side and extending toward a first direction; a second radiating metal piece ' is formed on the first surface of the substrate The second radiating metal piece is substantially parallel to the first radiating metal piece, adjacent to the second side and extending toward the first direction, and the second radiating metal piece and the first radiating metal piece form an inverted F-shaped structure a grounded metal piece substantially parallel to the second radiating metal piece Formed on the first surface of the substrate; a first connecting metal piece 'for connecting the first radiating metal piece and the second radiating metal piece to be formed on the first surface; a second connecting metal piece, The first radiating metal piece and the grounding metal piece are connected to the first surface; and a first parasitic short metal piece is formed between the first radiating metal piece and the grounded metal piece. The first surface is connected to the grounded metal piece. 2. The integrated multi-frequency antenna of claim 1, wherein the first resonant mode has a frequency of 2.4 GHz and the second resonant mode has a frequency of 5 GHz. 117736-REl-amendmenLdoc 3. The integrated multi-frequency antenna of claim 1, further comprising at least one first fixing portion penetrating the grounding metal piece and the substrate for fixing the integrated multi-frequency antenna by a fixing component 4. An integrated electronic device. 4. The integrated multi-frequency antenna of claim 3, wherein the fixed component is a screw. 5. The integrated multi-frequency antenna of the request, wherein the first: the radiating metal piece and the first - Connection metal piece connection The grounding metal piece has a grounding point, and the feeding point and the grounding point are respectively electrically connected to one of the signal ends of a coaxial line and a grounding end. The integrated multi-frequency antenna, wherein the first-parasitic short-circuit metal piece has a substantially inverted L-shape and has a starting end and an end, the starting end being substantially perpendicularly connected to the grounding metal piece, the end being above the starting end And extending in the first direction and substantially parallel to the first radiating metal piece. 7. The integrated multi-frequency antenna of claim 1, further comprising a second parasitic short metal piece having a starting end And an end of the second parasitic short metal piece is disposed on the first side and substantially perpendicularly connected to the ground metal piece, and the end of the second parasitic short metal piece is substantially upward from the start end The two directions extend, and the second direction is opposite to the first direction. 8. The integrated multi-frequency antenna of claim 1, further comprising a third parasitic short-circuit metal piece having a start end and a - end, the start end of the third parasitic short metal piece being disposed at The second side is substantially perpendicularly connected to the grounding metal piece, and the third parasitic shorting gold 117736-REl-amendmentdoc • 2· 1330908 belongs to the end of the month extending substantially upward from the starting end. 9. The integrated multi-frequency antenna of claim 6, further comprising a second parasitic short metal piece and a third parasitic short metal piece, the second parasitic short metal piece having a start end and an end, the second parasitic short circuit The starting end of the metal piece is disposed on the first side and is substantially perpendicularly connected to the grounding metal piece, and the end of the second parasitic shorting metal piece extends from the starting end substantially toward a second direction, the second direction is opposite In the first direction, the third parasitic short metal piece has a starting end and an end, and the starting end of the second parasitic short metal piece is disposed on the second side and substantially perpendicularly connects the grounding metal piece, and the first The end of the three parasitic short metal strip extends generally upwardly from the starting end toward the first direction. 10. The integrated multi-frequency antenna of claim 1, wherein the second connecting metal piece connects the first radiating metal piece, the second radiating metal piece, and the grounded metal piece. 11. The integrated multi-frequency antenna of claim 10, further comprising a second parasitic short metal piece having a start end and an end, the start end of the second parasitic short metal piece being disposed on The first side is substantially perpendicularly connected to the grounding metal piece ′ and the end of the second parasitic shorting metal piece extends substantially upward from the starting end toward a second direction, the first direction being opposite to the first direction β 12. The integrated multi-frequency antenna of claim 10, further comprising a third parasitic short-circuit metal piece, the third parasitic short-circuit metal piece having a start end and an end, wherein the start end of the third parasitic short-circuit metal piece is disposed on the first The ground metal piece is connected to the two sides and substantially perpendicularly, and the end of the third parasitic short-circuit gold 117736-RE 1 -amendmentdoc 1330908 is extended from the starting end substantially toward the first direction. The integrated multi-frequency antenna further includes a second parasitic short-circuit metal piece and a third parasitic short-circuit metal piece. The second parasitic short-circuit metal piece has a start end and an end, the first The starting end of the parasitic short metal piece is disposed on the first side and substantially perpendicularly connected to the grounding metal piece 'and the end of the second parasitic short metal piece extends from the starting end substantially toward a second direction, the second The third parasitic short metal piece has a starting end and an end, and the starting end of the third parasitic short metal piece is disposed on the second side and is substantially perpendicularly connected to the grounding metal piece, and The end of the third parasitic short metal piece extends substantially upward from the starting end toward the first direction.

117736-REl-amendmentdoc 4.