^ M324857 八、新型說明： 【新型所屬之技術領域】 本創作涉及一種雙頻天線，尤指一種工作於無線區域 網路頻帶的雙頻天線者。 【先前技術】 近年來，伴隨著無線通訊技術的進步、各國無線通訊 服務的開放’及其與網際網路的密切結合，無線通訊市場 的蓬勃發展已是時代趨勢，並且成為各大相關產業，如傳 統電信服務業、電腦資訊業、軟體業等爭相競逐的重點。 再者，今天應用於各種領域的無線通訊協定大都仍然 處於眾多標準的時期，在無線區域網路（Wireless Local Area Network，WLAN)中，目前的標準有由美國電器電子技術 學會（Institute of Electrical and Electronic Engineer，IEEE) 制定，其相對應的工作頻率大致為2.4Giga-Hertz( 2.412GHz 到 2.462GHz)及 5.2GHz (4.9GHz 到 5.87GHz)。電子產品 在設計時，為了能符合更多標準以提高產品的相容性，故 大多數的電子產品皆使用能夠收發兩種無線區域網路工作 頻帶的天線。於是，可工作於兩種無線區域網路工作頻帶 的天線逐漸成為現今電子產品的必要構件。 現今的天線又可分為外露式與内建式兩種，外露式天 線因組裝於電子產品殼體外，所以外露式天線容易因為電 子產品擺放位置不當及使用不當而損毁。内建式天線因組 M324857 天線固定部8及固定導線7的導線固定部9。本創作較佳實 施例中’天線固定部8包括分別設置於雙頻天線1〇〇之接 地部1兩端的固定片80及貫穿固定片80的貫孔81，透過 天線固定部8的固定片80及貫孔81與相對應的卡合元件 結合，使得雙頻天線100可穩固的設置於電子裝置中。本 創作較佳實施例中，導線固定部9成彎曲形並設置於雙頻 天線100的接地部。^ M324857 VIII. New Description: [New Technology Field] This creation involves a dual-band antenna, especially a dual-frequency antenna operating in the wireless regional network band. [Prior Art] In recent years, along with the advancement of wireless communication technology, the opening of wireless communication services in various countries and its close integration with the Internet, the booming development of the wireless communication market has become a trend of the times and has become a major industry. Such as the traditional telecommunications services, computer information industry, software industry and other competitions. Moreover, most of the wireless communication protocols used in various fields today are still in the period of many standards. In the Wireless Local Area Network (WLAN), the current standard is owned by the Institute of Electrical and Electronic Technology (Institute of Electrical and Electrical Engineering). The Electronic Engineer (IEEE) has developed a corresponding operating frequency of approximately 2.4 Giga-Hertz (2.412 GHz to 2.462 GHz) and 5.2 GHz (4.9 GHz to 5.87 GHz). Electronic products are designed to meet the needs of more standards to improve product compatibility. Most electronic products use antennas that can transmit and receive two wireless LAN operating bands. Thus, antennas that can operate in two wireless local area network operating bands are becoming an essential component of today's electronic products. Today's antennas can be divided into exposed and built-in types. The exposed antennas are assembled outside the electronics housing, so the exposed antennas are easily damaged due to improper placement and improper use of electronic products. The built-in antenna is composed of the M324857 antenna fixing portion 8 and the wire fixing portion 9 of the fixed wire 7. In the preferred embodiment of the present invention, the antenna fixing portion 8 includes a fixing piece 80 respectively disposed at both ends of the grounding portion 1 of the dual-frequency antenna 1 and a through hole 81 penetrating the fixing piece 80, and a fixing piece 80 penetrating the antenna fixing portion 8 The through hole 81 is combined with the corresponding engaging element, so that the dual frequency antenna 100 can be stably disposed in the electronic device. In the preferred embodiment of the present invention, the wire fixing portion 9 is curved and disposed on the ground portion of the dual band antenna 100.
本創作較佳實施例中’雙頻天線100之接地部1、第一 輻射部2、第二輻射部3、第三輻射部4、第四輻射部5、 寄生7L件6、天線固定部8及導線固定部9皆由導電片材沖 壓而成。本創作雙頻天線100的第一輻射部2、第二輻射部 3及第三輻射部4形成一迴路天線（L〇〇p⑽丨邱⑽），第一輻 射部2、第二輻射部3及第三輻射部4總電器長度為無線區 域網路2.4GHz的二分之-波長，由導線7與第三輻射部* 連接處到第四輻射部5之自由端的電器長度為無線區域網 路5.2GHz的时之—波長，寄生元件6的電器長度為無線 區域網路5.2GHz頻道的四分之一波長。 當本創作雙頻天線100工作於無線通訊時，電流由導 線7饋入，使得第-輻射部2、第二輻射部3及第三輕射部 4共振出-包括2.412GHz到2.462GHz的頻帶，而第三輕 射部4及第四輻射部5共振出—包括4咖項5細出的 頻帶’另外，寄生元件6偶合第二輻射部3的能量後亦共 8 M324857 振出一包括4.9GHz到5.87Gli z的頻帶。於是，本創作雙頻In the preferred embodiment of the present invention, the grounding portion 1, the first radiating portion 2, the second radiating portion 3, the third radiating portion 4, the fourth radiating portion 5, the parasitic 7L member 6, and the antenna fixing portion 8 of the dual-frequency antenna 100 are provided. And the wire fixing portion 9 is stamped from a conductive sheet. The first radiating portion 2, the second radiating portion 3, and the third radiating portion 4 of the dual-frequency antenna 100 of the present invention form a loop antenna (L〇〇p(10)丨(10)), the first radiating portion 2, the second radiating portion 3, and The total length of the third radiating portion 4 is a two-minute wavelength of the wireless local area network of 2.4 GHz, and the length of the electrical device connected from the wire 7 to the third radiating portion* to the free end of the fourth radiating portion 5 is a wireless local area network of 5.2 GHz. The time-wavelength, the electrical length of the parasitic element 6 is a quarter of the wavelength of the 5.2 GHz channel of the wireless local area network. When the present dual-band antenna 100 is operated in wireless communication, current is fed by the wire 7 so that the first-radiation portion 2, the second radiating portion 3, and the third light-emitting portion 4 resonate - including the frequency band of 2.412 GHz to 2.462 GHz. And the third light-emitting portion 4 and the fourth radiation portion 5 resonate - including the frequency band of the 4th coffee item 5's. In addition, the parasitic element 6 is coupled to the energy of the second radiation portion 3, and a total of 8 M324857 is excited to include 4.9 GHz. To the frequency band of 5.87Gli z. So, this creation dual frequency
三輻射部4、第四輻射部5及寄生元件6的配合，雙頻天線 1〇〇可共振出的頻帶可包括無線區域網路52GHz頻道。 請參照第二圖所示，為本創作雙頻天線1〇〇的電壓駐 波比（Voltage Standing Wave Ratio，VSWR)測試圖。當雙 φ 頻天線100工作於2.4GHz時（圖中Mkrl )，電壓駐波比為 1.237，而當雙頻天線100工作於2.5GHz時（圖中Mkr2)， • 電壓駐波比為1·484，當雙頻天線1〇〇工作於4.9GHz時（圖 i 中Mkr3)，電壓駐波比為1.313，當雙頻天線1〇〇工作於 5.87GHz時（圖中Mkr4)，電壓駐波比為2.292。 本創作實施例中，第四輻射部5與第一輻射部2及接 地部5之距離係影響雙頻天線100之電壓駐波比數值，而 • 寄生元件6與第二輻射部3之距離亦會影響雙頻天線1〇〇 ， 之電壓駐波比數值。當第四輻射部5靠近接地部1設置時， 雙頻天線100於2.4GHz至2.5GHz此頻帶的電壓駐波比數 值會升高，而雙頻天線100於2.4GHz至2.5GHz此頻帶的 天線增益會降低。當第四輻射部5靠近第一輻射部2設置 時，雙頻天線100於4.9GHz到5.87GHz此頻帶的電壓駐波 比數值會升高，而雙頻天線100於4.9GHz到5.87GHz此頻 帶的天線增益會降低。另外，當寄生元件6遠離第二輻射 9 、M324857 部3設置時，雙頻天線100於4.9GHz至5.87GHz此頻帶的 電壓駐波比數值會升高，而雙頻天線100於4.9GHz至 5.87GHz此頻帶的天線增益會降低。 由以上結構說明後可知，本創作雙頻天線100透過第 一輻射部2、第二輻射部3及第三輻射部4可共振出一包括 2.4GHz的頻帶，另透過第三輻射部4、第四輻射部5及寄 生元件6可共振出一包括5.2GHz的頻帶，俾令本創作雙頻 φ 天線100可符合無線區域網路之工作頻帶者。 綜上所述，本創作的確能藉由上述所揭露之構造達到 • 所述之功效，且本創作申請前未見於刊物亦未公開使用， 、 誠以符合新型專利之新穎、進步等要件，爰依法提出專利 申請。 惟，上述所揭之圖示及說明僅為本創作之實施例而 已，非為限定本創作之實施例；凡舉熟悉本創作技藝之人 士，其所依本創作精神所作之其他等效變化或修飾，皆應 涵蓋在以下申請專利範圍内。 ^ M324857 【圖式簡單說明】 第一圖係本創作雙頻天線的立體圖。 第二圖係本創作雙頻天線的電壓駐波比測試圖。 【主要元件符號說明】 雙頻天線 100 接地部 第一輻射部 2 第二輻射部 第三輻射部 4 第四輻射部 寄生元件 6 導線 天線固定部 8 固定片 貫孔 81 導線固定部The three radiating portions 4, the fourth radiating portion 5, and the parasitic element 6 cooperate, and the frequency band in which the dual-frequency antenna 1 〇〇 can resonate may include a wireless local area network 52 GHz channel. Please refer to the second figure for the voltage standing wave ratio (VSWR) test chart of the built-in dual-band antenna. When the dual φ frequency antenna 100 operates at 2.4 GHz (Mkrl in the figure), the voltage standing wave ratio is 1.237, and when the dual frequency antenna 100 operates at 2.5 GHz (Mkr2 in the figure), • the voltage standing wave ratio is 1.484. When the dual-frequency antenna operates at 4.9 GHz (Mkr3 in Figure i), the voltage standing wave ratio is 1.313. When the dual-frequency antenna operates at 5.87 GHz (Mkr4 in the figure), the voltage standing wave ratio is 2.292. In the present embodiment, the distance between the fourth radiating portion 5 and the first radiating portion 2 and the ground portion 5 affects the voltage standing wave ratio value of the dual-frequency antenna 100, and the distance between the parasitic element 6 and the second radiating portion 3 is also Will affect the dual-frequency antenna 1 〇〇, the voltage standing wave ratio value. When the fourth radiating portion 5 is disposed close to the ground portion 1, the voltage standing wave ratio value of the dual-frequency antenna 100 in the frequency band of 2.4 GHz to 2.5 GHz is increased, and the antenna of the dual-frequency antenna 100 is in the frequency band of 2.4 GHz to 2.5 GHz. The gain will decrease. When the fourth radiating portion 5 is disposed close to the first radiating portion 2, the voltage standing wave ratio value of the dual-frequency antenna 100 in the frequency band of 4.9 GHz to 5.87 GHz is increased, and the dual-frequency antenna 100 is in the frequency band of 4.9 GHz to 5.87 GHz. The antenna gain will decrease. In addition, when the parasitic element 6 is disposed away from the second radiation 9 and the M324857 portion 3, the voltage standing wave ratio value of the dual-frequency antenna 100 in the frequency band of 4.9 GHz to 5.87 GHz is increased, and the dual-frequency antenna 100 is from 4.9 GHz to 5.87. The antenna gain of this band in GHz is reduced. As can be seen from the above description, the dual-frequency antenna 100 of the present invention can resonate through a frequency band of 2.4 GHz through the first radiating portion 2, the second radiating portion 3, and the third radiating portion 4, and pass through the third radiating portion 4, The four radiating portions 5 and the parasitic element 6 can resonate to include a frequency band of 5.2 GHz, so that the dual-frequency φ antenna 100 can conform to the operating band of the wireless local area network. In summary, the creation of the creation can achieve the effect described by the above-mentioned disclosed structure, and it has not been disclosed in the publication before the application for the creation, and it is in line with the novelty, progress and other requirements of the new patent. File a patent application according to law. The illustrations and descriptions set forth above are only examples of the present invention, and are not intended to limit the embodiments of the present invention; any other equivalent changes made by those skilled in the art of creation may be Modifications are to be covered by the following patents. ^ M324857 [Simple description of the diagram] The first picture is a perspective view of the dual-band antenna. The second picture is the voltage standing wave ratio test chart of the dual-frequency antenna. [Description of main component symbols] Dual-frequency antenna 100 Grounding part First radiating part 2 Second radiating part Third radiating part 4 Fourth radiating part Parasitic element 6 Wire Antenna fixing part 8 Fixing plate Through hole 81 Wire fixing part