M363089 五、新型說明： 【新型所屬之技術領域】 本創作涉及一種天線’尤其涉及一種結構簡單的雙頻天 線。 【先前技術】 隨著移動通訊的高速發展以及電子設備的普及化’人們 1 越來越希望僅藉由一種天線就能夠收發多種不同頻帶的信 號。 • 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’如電信服務 業、電腦資訊業、軟體業等爭相競逐的重點。其中，全球行 動通訊系統（Global System for Mobile Communications, GSM) 是目前應用最為廣泛的通訊標準。 現在用於全球行動通訊系統的頻帶包括GSM850MHZ、 GSM900MHz、DCS 1800 MHz、PCS 1900 MHz、W-CDMA2100 MHz。 在全球行動通訊系統中與日常生活最相關的通訊產品乃 是手機，由於手機的薄型化與多頻化的需求，使其漸漸朝結 構簡單化、多頻或寬頻的技術發展。天線的設計也隨著手機 需求，朝結構簡單化、多頻與小型化發展。 【新型内容】 本創作的主要目的係提供一種具有結構簡單的雙頻天 線。 為實現上述目的，本創作雙頻天線包括輻射本體與設置 於輻射本體上的第一間隙、第二間隙與第三間隙，輻射本體 M363089 :有：對的第一側邊與第二側邊及相對的第三側邊與第四側 邊，第二侧邊與第四側邊分別連接第一侧邊與第二側邊。 第呈階梯狀，其1開設於輕射本體之第一側邊 ^連通外部’另-端設置於輻射本體之第二側邊與第三側邊 ^ 妾之區域’第二間隙設置於輕射本體之第二侧邊與第三側 邊連接之區域，其-端連接第—間隙另_端，第三間隙平行 設置於輻射本體之第二側邊之邊緣處，其1連接第二間隙 另一端，另一端設於第二侧邊與第四側邊連接之區域。 藉由上述第-間隙、第二間隙與第三間隙之設置，使輕 射本體形成第-輻射部、第二輻射部與第三輻射部，令本創 作雙頻天線可共振於高頻頻帶與低賴帶。且當調整間隙的 長度與寬度時進而可改變純射部的電氣特性，藉此改變高 頻頻帶與低頻頻帶的涵蓋範圍。因此，本創作雙頻天線之結 構簡單，並能工作於多個頻段。 【實施方式】 為詳細說明本創作之技術内容、構造特徵、所達成的目 的及功效，以下茲例舉實施例並配合圖式詳予說明。 請參閱第一圖，本創作雙頻天線100由金屬箔沖壓製成， 雙頻天線100設有輻射本體2、饋入部4與接地部6。本實施 例中，輻射本體2大致呈矩形，其設有間隙8、第一侧邊1〇、 第二側邊12、第三側邊14與第四側邊16，第一側邊1〇與第 二側邊12彼此相對，第三側邊14與第四側邊16彼此相對並 連接於第一側邊10與第二側邊12的兩側。 間隙8開設於輕射本體2之第一側邊1〇並_射本體2 内部延伸，饋入部4與接地部6彼此相鄰並延伸於輻射本體2 之第一側邊10與第三側邊14連接處。本實施例中，饋入部4 4 M363089 與接地部6延伸於第三侧邊14並呈彎曲狀，以抵頂電路板之 接點，韓射本體2、饋入部4與接地部6由金屬箔沖壓一體成 型。 間隙8由第一間隙18、第二間隙2〇與第三間隙22所組 成。本實施例中，第一間隙18呈階梯狀，開設於輻射本體2 之第一側邊10並朝第二側邊12與第三侧邊14連接處延伸， 第二間隙20設置於第二側邊12與第三侧邊14連接處，並連 通第一間隙18與第三間隙22，第三間隙22大致呈長條狀， 設置於輕射本體2之第二侧邊12鄰近處，並大致平行於第二 側邊12 ’第二間隙22由第二側邊12與第三側邊14連接處朝 第二側邊12與第四側邊連接處延伸。 第一間隙18由第一區段24、第二區段26、第三區段28 與第四區段30所組成’第一區段24 —端連通輻射本體2之 第一側邊10，第二區段26 —端連通第一區段24另一端，第 一區段26另一端朝輻射本體2之第三侧邊14延伸，第三區 •k28端連通第二區段26另一端，第三區段28另一端朝輻 射本體2之第二侧邊12延伸，第四區段30 —端連通第三區 2 8 另- 喁，第四區段30另一端朝輻射本體2之第三側邊 14延伸並連通第二間隙20—端。 。凡第三間隙22由第五區段32與第六區段34所組成，第五 區段^呈長條狀，設置於輻射本體2之第二側邊12之邊緣 處並平行於第二側邊12，第五區段32 -端連通第二間隙2〇 另如第五區段32另一端朝輻射本體2之第二側邊12與 第四側邊16連接處延伸，並連通第六區段34 -端，第六區 34 ® ._ °又直於輻射本體2之第四側邊16鄰近處並平行於第四 側邊16。 本實施例中，第一區段24、第三區段28、第二間隙20 5 M363089 第四區段30與 與第六區段34彼此平行設置，第二區段26、 第五區段32相互平行設置。 侧邊10、第三側邊14與第一間隙18於輕 上界定出一第一輻射部36。第二 、 側邊16彻铉 珩一'側邊14、第四 — =16與第二間隙2Q和第三間隙22於輻射本體2上界 第一輻射部38,第一側邊10、第四側邊 於輕射本體2上界定出一第三韓射部4〇。 ^M363089 V. New description: [New technical field] The present invention relates to an antenna', in particular to a dual-frequency antenna with a simple structure. [Prior Art] With the rapid development of mobile communication and the popularization of electronic devices, people are increasingly hoping to transmit and receive signals of a plurality of different frequency bands by only one type of antenna. • In recent years, along with advances in wireless communication technology, the opening of wireless communication services in various countries, and its close integration with the Internet, the booming wireless communication market has become a trend of the times and has become a major industry such as telecommunications services. Industry, computer information industry, software industry and other competitions. Among them, Global System for Mobile Communications (GSM) is the most widely used communication standard. The frequency bands currently used in global mobile communication systems include GSM850MHZ, GSM900MHz, DCS 1800 MHz, PCS 1900 MHz, W-CDMA2100 MHz. In the global mobile communication system, the most relevant communication products in daily life are mobile phones. Due to the thinning and multi-frequency requirements of mobile phones, the technology is gradually becoming simpler, multi-frequency or broadband. The design of the antenna has also evolved toward the simplification of the structure, multi-frequency and miniaturization with the demand of mobile phones. [New content] The main purpose of this creation is to provide a dual-frequency antenna with a simple structure. To achieve the above objective, the present dual-frequency antenna includes a radiation body and a first gap, a second gap, and a third gap disposed on the radiation body, and the radiation body M363089 has: a first side and a second side of the pair The third side and the fourth side are opposite to each other, and the second side and the fourth side are respectively connected to the first side and the second side. The first step is formed in a first side of the light-emitting body and communicates with the outer portion. The other end is disposed on the second side of the radiation body and the third side. The second side of the body is connected to the third side, the end of which is connected to the first gap, and the third gap is disposed parallel to the edge of the second side of the radiation body, and the first gap is connected to the second gap. One end and the other end are disposed at an area where the second side is connected to the fourth side. By the arrangement of the first gap, the second gap and the third gap, the light-emitting body forms the first radiation portion, the second radiation portion and the third radiation portion, so that the dual-frequency antenna of the present invention can resonate in the high frequency band and Low with the belt. Further, when the length and width of the gap are adjusted, the electrical characteristics of the pure portion can be changed, thereby changing the coverage of the high frequency band and the low frequency band. Therefore, the dual-frequency antenna of the present invention has a simple structure and can operate in multiple frequency bands. [Embodiment] In order to explain the technical contents, structural features, objectives and effects of the present invention in detail, the embodiments are described below in detail with reference to the drawings. Referring to the first figure, the dual-frequency antenna 100 of the present invention is made of metal foil stamping, and the dual-frequency antenna 100 is provided with a radiation body 2, a feeding portion 4 and a grounding portion 6. In this embodiment, the radiation body 2 is substantially rectangular, and is provided with a gap 8, a first side 1〇, a second side 12, a third side 14 and a fourth side 16, and the first side 1〇 The second side edges 12 are opposite to each other, and the third side edges 14 and the fourth side edges 16 are opposite to each other and are connected to both sides of the first side edge 10 and the second side edge 12. The gap 8 is defined in the first side of the light-emitting body 2 and extends inside the body 2, and the feeding portion 4 and the ground portion 6 are adjacent to each other and extend to the first side 10 and the third side of the radiation body 2 14 connections. In this embodiment, the feeding portion 4 4 M363089 and the grounding portion 6 extend along the third side 14 and are curved to abut the contact of the top circuit board, and the Korean projecting body 2, the feeding portion 4 and the grounding portion 6 are made of metal foil. Stamping is integrated. The gap 8 is composed of a first gap 18, a second gap 2, and a third gap 22. In this embodiment, the first gap 18 is stepped, and is opened on the first side 10 of the radiation body 2 and extends toward the junction of the second side 12 and the third side 14 . The second gap 20 is disposed on the second side. The side 12 is connected to the third side 14 and communicates with the first gap 18 and the third gap 22. The third gap 22 is substantially elongated and disposed adjacent to the second side 12 of the light-emitting body 2, and is substantially Parallel to the second side edge 12' the second gap 22 extends from the junction of the second side edge 12 and the third side edge 14 toward the second side edge 12 and the fourth side edge joint. The first gap 18 is composed of a first section 24, a second section 26, a third section 28 and a fourth section 30. The first section 24 is connected to the first side 10 of the radiation body 2, The second section 26 is connected to the other end of the first section 24, the other end of the first section 26 extends toward the third side 14 of the radiating body 2, and the third section k28 is connected to the other end of the second section 26, The other end of the three sections 28 extends toward the second side 12 of the radiating body 2, the fourth section 30 ends communicating with the third zone 2 8 another, and the other end of the fourth section 30 faces the third side of the radiating body 2 The edge 14 extends and communicates with the second gap 20 end. . Wherein the third gap 22 is composed of a fifth section 32 and a sixth section 34, the fifth section is elongated, disposed at the edge of the second side 12 of the radiation body 2 and parallel to the second side The side 12, the fifth section 32-end communicates with the second gap 2, and the other end of the fifth section 32 extends toward the junction of the second side 12 and the fourth side 16 of the radiation body 2, and communicates with the sixth section. The segment 34-end, the sixth zone 34®._° is again adjacent to the fourth side 16 of the radiation body 2 and parallel to the fourth side 16. In this embodiment, the first section 24, the third section 28, the second gap 20 5 M363089, the fourth section 30 and the sixth section 34 are disposed parallel to each other, and the second section 26 and the fifth section 32 are disposed. Set parallel to each other. The side edge 10, the third side 14 and the first gap 18 define a first radiating portion 36 lightly. Second, the side edges 16 are substantially the same as the first side, the fourth side, the fourth side, the fourth side, and the second gap 2, and the second gap 2, and the third gap 22, the upper side of the radiation body 2, the first side of the first radiating portion 38, the first side 10, the fourth side A third Korean portion 4〇 is defined on the side of the light-emitting body 2. ^
虽本創作雙頻天線⑽用於無線通訊時，第_韓射部％ /、振出涵蓋1800MHz的高頻頻帶，第二輕射部％與第三 虽射部40 -起共振出涵蓋9〇〇MHz的低頻頻帶。調整間隙—8 之，H8的長度與寬度可改變第—轄射部％與第三輕 射部40的電氣特性，藉歧變高賴帶與低軸帶的涵 131 ^ "fw 立調整間隙8之第三間隙22的長度與寬度可改變第二輕射 部38的電氣特性，藉此改變低頻頻帶的涵蓋範圍。調整間隙 8之第一區段24的寬度主要可改變第一輻射部36的電氣特 性，藉此改變高頻頻帶的涵蓋範圍。在真正實施時，雙頻天 線100亦可印刷於電路板上，輻射本體2亦可為圓形或1他 形狀。 〃 吻參照第二圖，為本創作雙頻天線丨〇〇的電壓駐波比 (Voltage StandingWaveRati〇，VSWR)測試圖。當雙頻天線 1 〇〇操作於880MHz時，電壓駐波比為2.5072 (圖中Mkrl )， 田雙頻天線1〇〇操作於960MHz時，電壓駐波比為2.1188(圖 中Mkr2)，當雙頻天線100操作於1710MHz時，電壓駐波比 為3.4035(圖令Mkr3)’當雙頻天線1〇〇操作於188〇MHz時， 電壓駐波比為3.7516 (圖中Mkr4)。所以，本創作雙頻天線 100可涵蓋全球行動通訊系統所規範之900MHz頻段與 6 M363089 1800MHz 頻段。 請參照第三圖，為本創作雙頻天線100的效能 (Efficiency)測試圖，當雙頻天線100操作於900MHz頻段 與1800MHz時，其效能約介於34.77%與62.27%之間。 請參照第四圖，為本創作雙頻天線100的峰值等效全向 輻射功率（Peak EIRP)測試圖，當雙頻天線100操作於900MHz 頻段與1800MHz時，其峰值等效全向輻射功率約介於-1.70 ' 分貝毫瓦與3_45分貝毫瓦之間。所以，本創作雙頻天線100 - 可穩定操作於全球行動通訊系統所規範之900MHz頻段與 ® 1800MHz 頻段。 由以上結構說明後可知，雙頻天線100之輻射本體2藉 由間隙8可界定出共振於高頻頻帶的第一輻射部36與共振於 低頻頻帶的第二輻射部38和三輻射部40。且當調整間隙8的 長度與寬度時進而可改變各輻射部36、38、40的電氣特性， 藉此改變高頻頻帶與低頻頻帶的涵蓋範圍。故，本創作雙頻 天線100之結構簡單，並能工作於多個頻段。 【圖式簡單說明】 • 第一圖係本創作雙頻天線之示意圖。 第二圖係本創作雙頻天線之電壓駐波比（Voltage Standing Wave Ratio，VSWR)測試圖。 第三圖係本創作雙頻天線之效能（Efficiency)測試圖。 1 第四圖係本創作雙頻天線之峰值等效全向輻射功率（Peak EIRP)測試圖。 【主要元件符號說明】 雙頻天線 100 輻射本體 2 饋入部 4 接地部 6 間隙 8 第一側邊 10 M363089 第二側邊 12 第四側邊 16 第二間隙 20 第一區段 24 第三區段 28 第五區段 32 第一輻射部 36 第三輻射部 40 第三側邊 14 第一間隙 18 第三間隙 22 第二區段 26 第四區段 30 第六區段 34 第二輕射部 38Although the dual-band antenna (10) is used for wireless communication, the _Han part % /, the vibration output covers the 1800MHz high-frequency band, and the second light-emitting part % and the third-time part 40 - resonate to cover 9〇〇 The low frequency band of MHz. Adjusting the gap -8, the length and width of the H8 can change the electrical characteristics of the first-firing portion and the third light-emitting portion 40, and the difference between the high-lying portion and the low-axis portion of the culvert 131 ^ "fw The length and width of the third gap 22 of 8 can change the electrical characteristics of the second light-emitting portion 38, thereby changing the coverage of the low frequency band. Adjusting the width of the first section 24 of the gap 8 primarily changes the electrical characteristics of the first radiating portion 36, thereby changing the coverage of the high frequency band. In the actual implementation, the dual-frequency antenna 100 can also be printed on a circuit board, and the radiation body 2 can also be circular or 1-shaped. 〃 Kiss refers to the second picture, which is the voltage standing wave ratio (VSWR) test chart of the dual-band antenna. When the dual-frequency antenna 1 〇〇 operates at 880MHz, the voltage standing wave ratio is 2.5072 (Mkrl in the figure), and when the field dual-frequency antenna operates at 960MHz, the voltage standing wave ratio is 2.1188 (Mkr2 in the figure). When the frequency antenna 100 operates at 1710 MHz, the voltage standing wave ratio is 3.4035 (Fig. Mkr3)'. When the dual-frequency antenna operates at 188 〇 MHz, the voltage standing wave ratio is 3.7516 (Mkr4 in the figure). Therefore, the dual-band antenna 100 of the present invention can cover the 900 MHz band and the 6 M363089 1800 MHz band specified by the Global System for Mobile Communications. Please refer to the third figure for the efficiency test diagram of the dual-band antenna 100. When the dual-band antenna 100 operates in the 900 MHz band and 1800 MHz, the performance is about 34.77% and 62.27%. Please refer to the fourth figure for the peak equivalent omnidirectional radiated power (Peak EIRP) test chart of the dual-band antenna 100. When the dual-band antenna 100 operates in the 900 MHz band and 1800 MHz, the peak equivalent isotropic radiation power is about Between -1.70' decibel milliwatts and 3_45 decibels milliwatts. Therefore, the proposed dual-band antenna 100 - can be stably operated in the 900 MHz band and the ® 1800 MHz band specified by the global mobile communication system. As is apparent from the above description, the radiation body 2 of the dual-frequency antenna 100 can define the first radiating portion 36 that resonates in the high-frequency band and the second radiating portion 38 and the three-radiating portion 40 that resonate in the low-frequency band by the gap 8. Further, when the length and width of the gap 8 are adjusted, the electrical characteristics of the respective radiating portions 36, 38, 40 can be changed, thereby changing the coverage of the high frequency band and the low frequency band. Therefore, the dual-frequency antenna 100 of the present invention has a simple structure and can operate in multiple frequency bands. [Simple description of the diagram] • The first diagram is a schematic diagram of the dual-band antenna. The second picture is the voltage standing wave ratio (VSWR) test chart of the dual-frequency antenna. The third picture is the efficiency test chart of the dual-band antenna. 1 The fourth figure is the peak equivalent isotropic radiated power (Peak EIRP) test chart of the dual-band antenna. [Description of main component symbols] Dual-frequency antenna 100 Radiation body 2 Feed-in part 4 Grounding part 6 Clearance 8 First side 10 M363089 Second side 12 Fourth side 16 Second gap 20 First section 24 Third section 28 fifth section 32 first radiating portion 36 third radiating portion 40 third side 14 first gap 18 third gap 22 second portion 26 fourth portion 30 sixth portion 34 second light portion 38