TWM493775U - Dual feed-in point type broadband antenna - Google Patents
Dual feed-in point type broadband antenna Download PDFInfo
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Description
本創作係關於一種天線，尤指一種雙饋入點式寬頻天線。This creation is about an antenna, especially a dual feed point broadband antenna.
隨著無線通訊技術的快速發展，使得可攜式無線通訊裝置(例如智慧型手機)已廣為大眾所使用，而天線扮演著傳送與接收無線信號的重要角色，因此天線的操作特性係直接影響了無線通訊裝置的無線信號收發能力與品質，且影響了無線通訊裝置的通話及傳輸資料等功能。With the rapid development of wireless communication technology, portable wireless communication devices (such as smart phones) have been widely used by the public, and the antenna plays an important role in transmitting and receiving wireless signals, so the operational characteristics of the antenna are directly affected. The wireless signal transmission and reception capability and quality of the wireless communication device affect the functions of the wireless communication device for talking and transmitting data.
無線通訊技術快速發展至今，己由原先2G演進至3G(如WCDMA)，並加入全球衛星定位系統(GPS)頻段作為大量之應用，且該頻段己為可攜式無線通訊裝置之必備頻段功能。除此之外，由於3G行動訊號之強度會隨著信號涵蓋範圍之差異變動，故可提供穩定訊號源之無線網路(Wi-Fi)傳輸技術便顯得更為重要。更甚者，由於目前大部分多媒體資料皆係以無線傳輸之方式於各使用者之無線通訊裝置間傳送分享，故無線傳輸之技術為無線通訊裝置不可或缺之功能。現今無線傳輸技術中，最為普遍且最為穩定之技術即為藍芽(Bluetooth)無線傳輸技術，由上可知，藍芽無線傳輸技術以及無線網路技術已隨著科技之進步融入使用者的生活，而藍芽無線傳輸技術以及無線網路技術所使用之頻段係為同一頻段。
The rapid development of wireless communication technology has evolved from the original 2G to 3G (such as WCDMA), and has joined the global satellite positioning system (GPS) frequency band as a large number of applications, and this frequency band has become a necessary frequency band function of the portable wireless communication device. In addition, since the strength of 3G mobile signals varies with the coverage of the signal, wireless network (Wi-Fi) transmission technology that provides a stable signal source is even more important. What's more, since most of the multimedia materials are transmitted and shared between the wireless communication devices of the users by means of wireless transmission, the technology of wireless transmission is an indispensable function of the wireless communication device. Among the current wireless transmission technologies, the most common and stable technology is Bluetooth wireless transmission technology. As can be seen from the above, Bluetooth wireless transmission technology and wireless network technology have been integrated into the user's life with the advancement of technology. The frequency bands used by Bluetooth wireless transmission technology and wireless network technology are the same frequency band.
為了讓使用者之無線通訊裝置能更便利且清晰地接收前述之頻段信號，且能符合全球各地多頻段之區別均可使用之目的，目前的無線通訊裝置多藉由增加天線裝置數量或體積來使得無線通訊裝置可以於較大的頻寬(Bandwidth)或多頻帶中收發前述之頻段信號，如此一來，勢必會增加無線通訊裝置之體積及天線之成本，故在元件集成度日漸提高以及無線通訊裝置功能增加且體積日漸小型化的趨勢下，習用之方式已無法符合需求。因此，如何壓縮天線體積及增加多頻輻射功能，為目前業界所需深入探討之問題。
In order to enable the user's wireless communication device to receive the aforementioned frequency band signals more conveniently and clearly, and to meet the distinction that multiple frequency bands in the world can be used, the current wireless communication devices mostly increase the number or volume of the antenna devices. The wireless communication device can transmit and receive the aforementioned frequency band signals in a large bandwidth (Bandwidth) or multiple frequency bands, so that the volume of the wireless communication device and the cost of the antenna are inevitably increased, so that the component integration degree is increasing and the wireless is increased. With the increasing functionality of the communication device and the increasing size of the device, the way of using it has not been able to meet the demand. Therefore, how to compress the antenna volume and increase the multi-frequency radiation function is an issue that needs to be deeply explored in the industry.
再者，於習用技術中，平面倒F式天線(Planar Inverted-F Antenna, PIFA) 被廣泛應用於無線通訊裝置之內建天線設計。然而，雖平面倒F式天線可運用於多頻帶設計，且於同一體積內所設計出之平面倒F式天線，其性能較單極天線(Monopole Antenna)佳，但其寬頻效益及高增益性仍多有限制。舉例而言，一般平面倒F式天線常被設計於諧振出單頻或倍頻段共振之無線信號收發操作，但於寬頻的使用及調整可用頻段與頻寬共振設計於同一天線單體上，仍存在許多限制。
Furthermore, in the conventional technology, Planar Inverted-F Antenna (PIFA) is widely used in the built-in antenna design of wireless communication devices. However, although the planar inverted-F antenna can be used in multi-band design, the planar inverted-F antenna designed in the same volume has better performance than the monopole antenna, but its broadband efficiency and high gain. There are still many restrictions. For example, a general planar inverted-F antenna is often designed to resonate to a single-frequency or multi-band resonance wireless signal transceiving operation, but in the use of broadband and the adjustment of the available frequency band and bandwidth resonance design on the same antenna unit, still There are many limitations.
本創作之目的在於提供一種雙饋入點式寬頻天線，藉由輻射部之第一支臂和第二支臂，配合共用之雙饋入點(訊號饋入部以及接地饋入部)，以達到寬頻之效益，並使其共振出之第一頻帶與第二頻帶的諧振頻率涵蓋無線網路(Wi-Fi)傳輸技術以及藍芽(Bluetooth)無線傳輸技術與全球衛星定位系統(GPS)之工作頻段，並且兼具小體積、低成本及高增益性之功效。The purpose of the present invention is to provide a dual feed-in point broadband antenna, which is configured by a first arm and a second arm of the radiating portion, and a shared dual feed point (signal feed portion and ground feed portion) to achieve wide frequency The benefits and resonances of the first and second frequency bands of the resonant frequency encompass the wireless network (Wi-Fi) transmission technology and the Bluetooth wireless transmission technology and the global satellite positioning system (GPS) operating frequency band And has the advantages of small size, low cost and high gain.
為達前述目的，本創作之一較廣實施態樣為提供一種雙饋入點式寬頻天線，適用於無線通訊裝置，雙饋入點式寬頻天線包括：輻射部，包括：連接部，具有第一側與第二側，其中第一側與第二側相對；第一支臂，包括依序連接之第一L型結構段、彎曲段及第一直線段，且第一支臂之一端係連接於連接部之第一側；以及第二支臂，包括依序連接之第二直線段、第三直線段及第二L型結構段，且第二支臂之一端係連接於第一L型結構段之該端；訊號饋入部，連接於連接部之第二側，且鄰近於第一L型結構段；以及接地饋入部，連接於連接部之第二側，且鄰近於訊號饋入部；其中，第一支臂係架構於共振出第一頻段之無線信號收發，且第二支臂係架構於共振出第二頻段之無線信號收發。
In order to achieve the above objectives, one of the present inventions provides a dual feed point broadband antenna suitable for wireless communication devices. The dual feed point broadband antenna includes a radiation portion including: a connection portion having a a first side and a second side, wherein the first side is opposite to the second side; the first arm includes a first L-shaped structural section, a curved section and a first straight section sequentially connected, and one end of the first arm is connected a first side of the connecting portion; and a second arm comprising a second straight line segment, a third straight line segment and a second L-shaped structural segment sequentially connected, and one end of the second arm is connected to the first L-shaped portion The signal feeding portion is connected to the second side of the connecting portion and adjacent to the first L-shaped structural portion; and the grounding feeding portion is connected to the second side of the connecting portion and adjacent to the signal feeding portion; The first arm is configured to transmit and receive wireless signals in the first frequency band, and the second arm is configured to transmit and receive wireless signals in the second frequency band.
1‧‧‧雙饋入點式寬頻天線
2‧‧‧輻射部
21‧‧‧連接部
21a‧‧‧第一側
21b‧‧‧第二側
22‧‧‧第一支臂
221‧‧‧第一L型結構段
221a‧‧‧第一側邊
221b‧‧‧第二側邊
222‧‧‧彎曲段
222a‧‧‧弧部
223‧‧‧第一直線段
23‧‧‧第二支臂
231‧‧‧第二直線段
232‧‧‧第三直線段
233‧‧‧第二L型結構段
24‧‧‧第一耦接部
25‧‧‧第二耦接部
3‧‧‧訊號饋入部
4‧‧‧接地饋入部
5‧‧‧載體
5a‧‧‧第一表面
5b‧‧‧第二表面1‧‧‧Double-feed point broadband antenna
2‧‧‧ Radiation Department
21‧‧‧Connecting Department
21a‧‧‧ first side
21b‧‧‧ second side
22‧‧‧First arm
221‧‧‧First L-shaped structural section
221a‧‧‧ first side
221b‧‧‧ second side
222‧‧‧Bend section
222a‧‧‧Arc
223‧‧‧First straight line segment
23‧‧‧second arm
231‧‧‧Second straight line segment
232‧‧‧ third straight line segment
233‧‧‧Second L-shaped structural section
24‧‧‧First coupling
25‧‧‧Second coupling
3‧‧‧ Signal Feeding Department
4‧‧‧ Grounding Feeding Department
5‧‧‧ Carrier
5a‧‧‧ first surface
5b‧‧‧ second surface
第1圖係為本創作較佳實施例之雙饋入點式寬頻天線結構展開示意圖。
第2圖係為第1圖所示之雙饋入點式寬頻天線設置於其載體之正面示意圖。
第3圖係為第2A及2B圖所示之雙饋入點式寬頻天線與其載體之結構爆炸圖。
第4圖係為第1圖所示之雙饋入點式寬頻天線之第一頻段之駐波比值對頻率變化圖。
第5圖係為第1圖所示之雙饋入點式寬頻天線之第二頻段之駐波比值對頻率變化圖。
FIG. 1 is a schematic diagram showing the structure of a dual feed point broadband antenna structure according to a preferred embodiment of the present invention.
Fig. 2 is a front view showing the double feed point type wideband antenna shown in Fig. 1 disposed on the carrier.
Figure 3 is a structural exploded view of the dual feed point wideband antenna and its carrier shown in Figs. 2A and 2B.
Fig. 4 is a graph showing the standing wave ratio versus frequency of the first frequency band of the dual feed point wideband antenna shown in Fig. 1.
Fig. 5 is a graph showing the standing wave ratio versus frequency of the second frequency band of the dual feed point wideband antenna shown in Fig. 1.
體現本創作特徵與優點的一些典型實施例將在後段的說明中詳細敘述。應理解的是本創作能夠在不同的態樣上具有各種的變化，然其皆不脫離本創作的範圍，且其中的說明及圖式在本質上係當作說明之用，而非用以限制本創作。
Some exemplary embodiments embodying the features and advantages of the present invention are described in detail in the following description. It should be understood that the present invention can be varied in various aspects without departing from the scope of the present invention, and that the description and drawings are used for illustrative purposes, rather than limiting This creation.
第1圖係為本創作較佳實施例之雙饋入點式寬頻天線結構展開示意圖。如第1圖所示，本創作之雙饋入點式寬頻天線1適用於無線通訊裝置，例如但不限於智慧型手機，其中該無線通訊裝置係可與全球衛星定位系統(Global Positioning System, GPS)訊號、無線網路(Wi-Fi)傳輸訊號以及藍芽(Bluetooth, BT)無線傳輸訊號耦接。雙饋入點式寬頻天線1包括輻射部2、訊號饋入部3及接地饋入部4。輻射部2包括連接部21、第一支臂22及第二支臂23。連接部21係為一倒L型結構，且具有第一側21a與第二側21b，其中第一側21a與第二側21b相對。第一支臂22連接於連接部21之第一側21a，其中第一支臂22包括第一L型結構段221、彎曲段222及第一直線段223。第二支臂23連接於第一支臂22之第一L型結構段221與連接部21連接之一端，其中第二支臂22包括第二直線段231、第三直線段232及第二L型結構段233。於本實施例中，連接部21之第一側21a係連接於第一L型結構段221之一端之第一側邊221a，第二直線段231之一端係連接於第一L型結構段221之一端之第二側邊221b。訊號饋入部3係連接於連接部21之第二側21b，且鄰近第一L型結構段221設置。接地饋入部4係連接於連接部21之第二側21b，且鄰近於訊號饋入部3，其中該接地饋入部4與第一L型結構段221係位於訊號饋入部3之兩相對側。於本實施例中，第一支臂22係架構於共振出第一頻段之無線信號收發，而第二支臂23係架構於共振出第二頻段之無線信號收發。
FIG. 1 is a schematic diagram showing the structure of a dual feed point broadband antenna structure according to a preferred embodiment of the present invention. As shown in Fig. 1, the dual feed point broadband antenna 1 of the present invention is suitable for a wireless communication device, such as but not limited to a smart phone, wherein the wireless communication device can be combined with a Global Positioning System (GPS). Signals, wireless network (Wi-Fi) transmission signals, and Bluetooth (BT) wireless transmission signals are coupled. The dual feed point type broadband antenna 1 includes a radiating portion 2, a signal feeding portion 3, and a ground feeding portion 4. The radiation portion 2 includes a connection portion 21, a first arm 22, and a second arm 23. The connecting portion 21 is an inverted L-shaped structure and has a first side 21a and a second side 21b, wherein the first side 21a is opposite to the second side 21b. The first arm 22 is coupled to the first side 21a of the connecting portion 21, wherein the first arm 22 includes a first L-shaped structural section 221, a curved section 222, and a first straight section 223. The second arm 23 is connected to one end of the first L-shaped structural section 221 of the first arm 22 and the connecting portion 21, wherein the second arm 22 includes a second straight section 231, a third straight section 232 and a second L Type structure segment 233. In this embodiment, the first side 21a of the connecting portion 21 is connected to the first side 221a of one end of the first L-shaped structural section 221, and one end of the second straight section 231 is connected to the first L-shaped structural section 221 The second side 221b of one end. The signal feeding portion 3 is connected to the second side 21b of the connecting portion 21 and disposed adjacent to the first L-shaped structural portion 221. The grounding feeding portion 4 is connected to the second side 21b of the connecting portion 21 and adjacent to the signal feeding portion 3, wherein the grounding feeding portion 4 and the first L-shaped structural portion 221 are located on opposite sides of the signal feeding portion 3. In the embodiment, the first arm 22 is configured to transmit and receive wireless signals in the first frequency band, and the second arm 23 is configured to transmit and receive wireless signals in the second frequency band.
於本實施例中，輻射部2係為金屬材質構成，其可為但不限於銅箔。輻射部2包括連接部21、第一支臂22及第二支臂23，且較佳由單一金屬片裁切而製成，但不以此為限。
In the present embodiment, the radiation portion 2 is made of a metal material, which may be, but not limited to, a copper foil. The radiating portion 2 includes a connecting portion 21, a first arm 22, and a second arm 23, and is preferably made of a single metal sheet, but is not limited thereto.
於本實施例中，第一支臂22連接於連接部21之第一側21a。第一支臂22包括依序連接之第一L型結構段221、彎曲段222及第一直線段223，其中第一L型結構段221具有第一側邊221a與第二側邊221b，第一L型結構段221之第一側邊221a係連接於連接部21之第一側21a，第一L型結構段221之另一端連接於彎曲段222。彎曲段222係連接於第一L型結構段221與第一直線段223之間，且第一直線段223連接於彎曲段222。於本實施例中，彎曲段222更具有一弧部222a，該弧部222a係鄰近於第二L型結構段233。第一直線段223係為矩形結構，而彎曲段222係為一具有彎曲弧度之條狀結構，且彎曲段222與第一直線段223之長度皆小於第一L型結構段221之長度。於一些實施例中，第一支臂22之第一L型結構段221、彎曲段222及第一直線段223係構成一彎折延伸結構。第一支臂22之路徑長度為其工作頻率之共振波長的四分之一，且第一L型結構段221、彎曲段222及第一直線段223較佳為一體成型結構，但不以此為限。
In the present embodiment, the first arm 22 is coupled to the first side 21a of the connecting portion 21. The first arm 22 includes a first L-shaped structural section 221, a curved section 222 and a first straight section 223, wherein the first L-shaped structural section 221 has a first side 221a and a second side 221b, first The first side 221a of the L-shaped structural section 221 is connected to the first side 21a of the connecting portion 21, and the other end of the first L-shaped structural section 221 is connected to the curved section 222. The curved section 222 is coupled between the first L-shaped structural section 221 and the first straight section 223, and the first straight section 223 is coupled to the curved section 222. In the present embodiment, the curved section 222 further has an arc portion 222a adjacent to the second L-shaped structural segment 233. The first straight line segment 223 is a rectangular structure, and the curved portion 222 is a strip structure having a curved curvature, and the length of the curved portion 222 and the first straight line segment 223 are smaller than the length of the first L-shaped structural portion 221 . In some embodiments, the first L-shaped structural section 221, the curved section 222, and the first straight section 223 of the first arm 22 constitute a bent extension structure. The path length of the first arm 22 is one quarter of the resonant wavelength of the operating frequency thereof, and the first L-shaped structural section 221, the curved section 222 and the first straight section 223 are preferably integrally formed, but not limit.
於本實施例中，第二支臂23之一端係連接於第一L型結構段221之第二側邊221b，第二支臂23包括依序連接之第二直線段231、第三直線段232及第二L型結構段233。第二直線段231之一端連接於第一L型結構段221之第二側邊221b，第二直線段231向遠離第一支臂22之方向延伸，且第二直線段231之另一端連接於第三直線段232。第三直線段232之一端連接於第二直線段231，且第三直線段232向遠離連接部21之方向延伸。第二L型結構段233則係連接於第三直線段232之另一端，且第二L型結構段233鄰近於第一L型結構段221。於本實施例中，第一L型結構段221與第二L型結構段233係彼此相分隔且大體上平行地排列。第二直線段231及第三直線段232之外形係為矩形結構，第二直線段231之長度係大於第三直線段232之長度，第二L型結構段233之長度又大於第二直線段231之長度。於一些實施例中，第二支臂23之路徑長度為其工作頻率之共振波長的四分之一，且第二直線段231、第三直線段232及第二L型結構段233較佳為一體成型結構，但不以此為限。
In this embodiment, one end of the second arm 23 is connected to the second side 221b of the first L-shaped structural section 221, and the second arm 23 includes a second straight section 231 and a third straight section sequentially connected. 232 and a second L-shaped structural section 233. One end of the second straight section 231 is connected to the second side 221b of the first L-shaped structural section 221, the second straight section 231 extends away from the first arm 22, and the other end of the second straight section 231 is connected to The third straight line segment 232. One end of the third straight section 232 is connected to the second straight section 231, and the third straight section 232 extends away from the connecting portion 21. The second L-shaped structural section 233 is connected to the other end of the third straight section 232, and the second L-shaped structural section 233 is adjacent to the first L-shaped structural section 221. In the present embodiment, the first L-shaped structural section 221 and the second L-shaped structural section 233 are spaced apart from each other and arranged substantially in parallel. The second straight line segment 231 and the third straight line segment 232 are formed in a rectangular structure, the length of the second straight line segment 231 is greater than the length of the third straight line segment 232, and the length of the second L-shaped structural segment 233 is greater than the second straight line segment. 231 length. In some embodiments, the path length of the second arm 23 is one quarter of the resonant wavelength of the operating frequency thereof, and the second straight line segment 231, the third straight line segment 232, and the second L-shaped structural portion 233 are preferably One-piece structure, but not limited to this.
於本實施例中，如第1圖所示，輻射部2更包括第一耦接部24及第二耦接部25，第一耦接部24係連接連接部21之第二側21b與訊號饋入部3，第二耦接部25係連接連接部21之第二側21b與接地饋入部4。第一耦接部24係鄰近於第一L型結構段221且自連接部21之第二側21b向外延伸，第二耦接部25係遠離第一L型結構段221且自連接部21之第二側21b向外延伸。於本實施例中，第一耦接部24與第二耦接部25係相互平行且相間隔地設置。訊號饋入部3可將射頻電路(未圖示)欲發射的射頻信號饋入至雙饋入點式寬頻天線1，當然，亦可由訊號饋入部3將雙饋入點式寬頻天線1所接收到的射頻信號輸出至射頻電路。接地饋入部4則可連接於一接地點(未圖示)。
In the embodiment, as shown in FIG. 1 , the radiating portion 2 further includes a first coupling portion 24 and a second coupling portion 25 , and the first coupling portion 24 is connected to the second side 21 b of the connecting portion 21 and the signal. The feeding portion 3 and the second coupling portion 25 are connected to the second side 21b of the connecting portion 21 and the ground feeding portion 4. The first coupling portion 24 is adjacent to the first L-shaped structural segment 221 and extends outward from the second side 21 b of the connecting portion 21 . The second coupling portion 25 is away from the first L-shaped structural segment 221 and is self-connecting portion 21 . The second side 21b extends outward. In this embodiment, the first coupling portion 24 and the second coupling portion 25 are disposed parallel to each other and spaced apart from each other. The signal feeding unit 3 can feed the RF signal to be transmitted by the RF circuit (not shown) to the dual feed point broadband antenna 1 , and of course, the signal feeding unit 3 can receive the dual feed point broadband antenna 1 . The RF signal is output to the RF circuit. The ground feed portion 4 can be connected to a ground point (not shown).
第2圖係為第1圖所示之雙饋入點式寬頻天線設置於其載體之結構示意圖，第3圖係為第2圖所示之雙饋入點式寬頻天線與其載體之結構爆炸圖。如第2及3圖所示，雙饋入點式寬頻天線1係設置於一載體5上，且可透過載體5之承載而設置於無線通訊裝置之本體(未圖示)。載體5包括第一表面5a及第二表面5b，其中第二表面5b相對於第一表面5a。於本實施例中，雙饋入點式寬頻天線1之連接部21、第一支臂22及第二支臂23係設置於載體5之第一表面5a。雙饋入點式寬頻天線1之訊號饋入部3、接地饋入部4、部分之第一耦接部24及部分之第二耦接部25則彎折至載體5之第二表面5b。載體5可為但不限於一軟性印刷電路板(Flexible Printed Circuit Board, FPCB)或塑料板件，由於載體5具可撓性，因此雙饋入點式寬頻天線1可利用載體5之承載而設置於無線通訊裝置之本體中(亦即無線通訊裝置之殼體內部)，並經由訊號饋入部3及接地饋入部4而與無線通訊裝置之無線信號處理電路電性連接。如此一來，無線通訊裝置即可藉由雙饋入點式寬頻天線1進行無線信號的收發運作。於一些實施例中，無線通訊裝置可為智慧型手機、個人數位助理(PDA)、平板電腦或可攜式電腦等，其中以智慧型手機為較佳。
Figure 2 is a schematic diagram showing the structure of the dual feed point broadband antenna shown in Fig. 1 on its carrier, and Fig. 3 is the structural explosion diagram of the double feed point wideband antenna and its carrier shown in Fig. 2. . As shown in FIGS. 2 and 3, the double feed point type broadband antenna 1 is disposed on a carrier 5 and is disposed on a body (not shown) of the wireless communication device via the carrier 5 . The carrier 5 includes a first surface 5a and a second surface 5b, wherein the second surface 5b is opposite to the first surface 5a. In the present embodiment, the connecting portion 21, the first arm 22 and the second arm 23 of the dual feed point type broadband antenna 1 are disposed on the first surface 5a of the carrier 5. The signal feed portion 3, the ground feed portion 4, a portion of the first coupling portion 24, and a portion of the second coupling portion 25 of the double feed point type broadband antenna 1 are bent to the second surface 5b of the carrier 5. The carrier 5 can be, but not limited to, a Flexible Printed Circuit Board (FPCB) or a plastic plate. Since the carrier 5 is flexible, the dual feed point broadband antenna 1 can be set by using the carrier 5 The main body of the wireless communication device (that is, the inside of the casing of the wireless communication device) is electrically connected to the wireless signal processing circuit of the wireless communication device via the signal feeding portion 3 and the ground feeding portion 4. In this way, the wireless communication device can perform the wireless signal transmission and reception operation by the dual feed point broadband antenna 1. In some embodiments, the wireless communication device can be a smart phone, a personal digital assistant (PDA), a tablet computer or a portable computer, and the smart phone is preferred.
第4圖與第5圖係分別為第1圖所示之雙饋入點式寬頻天線之第一頻段與第二頻段之駐波比值對頻率變化圖。如圖所示，縱軸為雙饋入點式寬頻天線之駐波比值(Standing Wave Ratio，SWR)，其係與折返損失(Return Loss)之增益值互為正向關係，且可經由計算將駐波比值換算為折返損失增益值。駐波比值隨著頻率變化會有所不同，通常在例如2.5以下的頻帶代表天線於該頻帶具有不錯之效果。請先參閱第4圖，本創作之雙饋入點式寬頻天線1工作於2441MHZ時具有良好的訊號收發效果，換言之，本創作之雙饋入點式寬頻天線1適用之第一頻段係涵蓋2441MHZ之特定頻率，故其可應用於無線網路(Wi-Fi)傳輸技術以及藍芽(Bluetooth)無線傳輸技術之工作頻段。請再參閱第5圖，本創作之雙饋入點式寬頻天線1工作於1575MHZ時亦具有良好的訊號收發效果，換言之，本創作之雙饋入點式寬頻天線1適用之第二頻段係涵蓋1575MHZ之特定頻率，故其可應用於全球衛星定位系統(GPS)之工作頻段。
Fig. 4 and Fig. 5 are diagrams showing the standing wave ratio versus frequency of the first frequency band and the second frequency band of the dual feed point broadband antenna shown in Fig. 1, respectively. As shown in the figure, the vertical axis is the standing wave ratio (SWR) of the double feed point broadband antenna, which is positively related to the gain value of the return loss (Return Loss) and can be calculated by calculation. The standing wave ratio value is converted into a foldback loss gain value. The standing wave ratio varies with frequency, and a frequency band such as 2.5 or less typically has a good effect on the frequency band. Please refer to Figure 4 first. The dual feed-in-point wideband antenna 1 of this work has good signal transmission and reception when working at 2441MHZ. In other words, the first frequency band of the dual feed-in-point broadband antenna 1 of this creation covers 2441MHZ. The specific frequency, so it can be applied to the working frequency band of wireless network (Wi-Fi) transmission technology and Bluetooth wireless transmission technology. Please refer to Figure 5 again. The dual feed-in-point broadband antenna 1 of this work also has good signal transmission and reception when working at 1575MHZ. In other words, the second frequency band of the dual feed-in-point broadband antenna 1 of this creation is applicable. The specific frequency of 1575MHZ can be applied to the working frequency band of the Global Positioning System (GPS).
於本實施例中，雙饋入點式寬頻天線1之第一支臂22與第二支臂23係分別架構於共振出一所需特定頻帶之無線信號收發操作，該兩特定頻帶其中之一係為第一頻段，其係涵蓋無線網路(Wi-Fi)傳輸技術以及藍芽(Bluetooth)無線傳輸技術之工作頻段(即2441MHZ)，另一特定頻帶之諧振頻率即為第二頻段，其係涵蓋全球衛星定位系統（GPS）之工作頻段(即1575MHZ)。再者，本創作之雙饋入點式寬頻天線1之天線外觀類似於π形，並以雙饋入點(訊號饋入部3和接地饋入部4)將射頻訊號饋入至輻射部2之第一支臂22及第二支臂23，即共振出無線網路(Wi-Fi)傳輸技術以及藍芽(Bluetooth)無線傳輸技術與全球衛星定位系統(GPS)所需之頻段，其結構相當簡單，且其訊號收發性能亦較習用單一之平面倒F式天線為佳。因此，本創作之雙饋入點式寬頻天線1可在毋須額外增加天線之數量或體積的前提下增加寬頻效益，兼具低成本及高增益性之功效，同時有利於無線通訊裝置之小型化趨勢。
In this embodiment, the first arm 22 and the second arm 23 of the dual feed point type broadband antenna 1 are respectively configured to resonate and perform a wireless signal transceiving operation in a specific frequency band, one of the two specific frequency bands. It is the first frequency band, which covers the working frequency band of wireless network (Wi-Fi) transmission technology and Bluetooth wireless transmission technology (ie, 2441MHZ), and the resonance frequency of another specific frequency band is the second frequency band. It covers the working frequency band of the Global Positioning System (GPS) (ie 1575MHZ). Furthermore, the antenna of the dual feed-in-point broadband antenna 1 of the present invention has a similar appearance to the π shape, and feeds the RF signal to the radiation portion 2 with the double feed point (the signal feed portion 3 and the ground feed portion 4). An arm 22 and a second arm 23, which are resonant frequency wireless network (Wi-Fi) transmission technologies, and Bluetooth radio transmission technology and a global satellite positioning system (GPS), are relatively simple in structure. And its signal transmission and reception performance is better than the conventional flat inverted F antenna. Therefore, the dual feed point broadband antenna 1 of the present invention can increase the broadband efficiency without additionally increasing the number or volume of the antenna, and has the advantages of low cost and high gain, and is advantageous for miniaturization of the wireless communication device. trend.
綜上所述，本創作之雙饋入點式寬頻天線，藉由輻射部之第一支臂及第二支臂，配合共用之雙饋入點(訊號饋入部和接地饋入部)，以達到寬頻之效益，且其適用之頻段係涵蓋無線網路(Wi-Fi)傳輸技術以及藍芽(Bluetooth)無線傳輸技術與全球衛星定位系統(GPS)之工作頻段。另一方面，本創作之雙饋入點式寬頻天線之結構簡單，並可在毋須額外增加天線之數量或體積的前提下增加寬頻效益，故兼具小體積、低成本及高增益性之優點。
In summary, the dual feed-in point broadband antenna of the present invention is achieved by the first arm and the second arm of the radiating portion, together with the shared double feed point (signal feed portion and ground feed portion). Broadband benefits, and the applicable frequency bands cover wireless network (Wi-Fi) transmission technology and the operating frequency bands of Bluetooth wireless transmission technology and Global Positioning System (GPS). On the other hand, the dual feed-in-point wideband antenna of the present invention has a simple structure and can increase the broadband efficiency without additionally increasing the number or volume of the antenna, so that it has the advantages of small size, low cost and high gain. .
本創作得由熟習此技術之人士任施匠思而為諸般修飾，然皆不脫如附申請專利範圍所欲保護者。This creation has been modified by those who are familiar with the technology, but it is not intended to be protected by the scope of the patent application.
1‧‧‧雙饋入點式寬頻天線 1‧‧‧Double-feed point broadband antenna
2‧‧‧輻射部 2‧‧‧ Radiation Department
21‧‧‧連接部 21‧‧‧Connecting Department
21a‧‧‧第一側 21a‧‧‧ first side
21b‧‧‧第二側 21b‧‧‧ second side
22‧‧‧第一支臂 22‧‧‧First arm
221‧‧‧第一L型結構段 221‧‧‧First L-shaped structural section
221a‧‧‧第一側邊 221a‧‧‧ first side
221b‧‧‧第二側邊 221b‧‧‧ second side
222‧‧‧彎曲段 222‧‧‧Bend section
222a‧‧‧弧部 222a‧‧‧Arc
223‧‧‧第一直線段 223‧‧‧First straight line segment
23‧‧‧第二支臂 23‧‧‧second arm
231‧‧‧第二直線段 231‧‧‧Second straight line segment
232‧‧‧第三直線段 232‧‧‧ third straight line segment
233‧‧‧第二L型結構段 233‧‧‧Second L-shaped structural section
24‧‧‧第一耦接部 24‧‧‧First coupling
25‧‧‧第二耦接部 25‧‧‧Second coupling
3‧‧‧訊號饋入部 3‧‧‧ Signal Feeding Department
4‧‧‧接地饋入部 4‧‧‧ Grounding Feeding Department
Claims (10)
一輻射部，包括：
一連接部，具有一第一側與一第二側，其中該第一側與該第二側相對；
一第一支臂，包括依序連接之一第一L型結構段、一彎曲段及一第一直線段，且該第一支臂之一端係連接於該連接部之該第一側；以及
一第二支臂，包括依序連接之一第二直線段、一第三直線段及一第二L型結構段，且該第二支臂之一端係連接於該第一L型結構段之該端；
一訊號饋入部，連接於該連接部之該第二側，且鄰近於該第一L型結構段；以及
一接地饋入部，連接於該連接部之該第二側，且鄰近於該訊號饋入部；
其中，該第一支臂係架構於共振出一第一頻段之無線信號收發，且該第二支臂係架構於共振出一第二頻段之無線信號收發。
A dual feed point broadband antenna suitable for a wireless communication device, the dual feed point broadband antenna includes:
A radiation department, including:
a connecting portion having a first side and a second side, wherein the first side is opposite to the second side;
a first arm includes a first L-shaped structural section, a curved section and a first straight section sequentially connected, and one end of the first arm is connected to the first side of the connecting portion; and The second arm includes a second straight line segment, a third straight line segment and a second L-shaped structural segment, and one end of the second arm is connected to the first L-shaped structural segment end;
a signal feeding portion connected to the second side of the connecting portion and adjacent to the first L-shaped structural portion; and a grounding feeding portion connected to the second side of the connecting portion and adjacent to the signal feeding Entering the department;
The first arm structure is configured to resonate and transmit a wireless signal in a first frequency band, and the second arm structure is configured to resonate and transmit a wireless signal in a second frequency band.
一第一耦接部，連接於該訊號饋入部與該連接部之該第二側；以及
一第二耦接部，連接於該接地饋入部與該連接部之該第二側；
其中，該第一耦接部與該第二耦接部相互平行且相間隔設置。
The dual feed point broadband antenna according to claim 1, wherein the radiation portion further comprises:
a first coupling portion is connected to the signal feeding portion and the second side of the connecting portion; and a second coupling portion is connected to the ground feeding portion and the second side of the connecting portion;
The first coupling portion and the second coupling portion are parallel to each other and spaced apart from each other.
The dual feed point broadband antenna of claim 1, wherein one end of the first L-shaped structure is connected to the first side of the connecting portion, and one end of the curved portion is connected to the first The other end of the L-shaped structural section, and one end of the first straight section is connected to the other end of the curved section.
The dual feed point broadband antenna according to claim 3, wherein the connecting portion is an inverted L-shaped structure, and the first side of the connecting portion is connected to the first L-shaped structural segment. One of the first sides of the end.
The dual feed point broadband antenna according to claim 1, wherein one end of the second straight segment is connected to the first L-shaped structural segment, and the second straight segment is away from the first arm. a direction extending, one end of the third straight line segment is connected to the other end of the second straight line segment, the third straight line extends away from the connecting portion, and the second L-shaped structural segment is connected to the third straight line segment The other end of the second L-shaped structural segment is adjacent to the first L-shaped structural segment.
The dual feed point broadband antenna of claim 1, wherein the first L-shaped structural segment and the second L-shaped structural segment are spaced apart from each other and arranged substantially in parallel.
The dual feed point broadband antenna according to claim 1, wherein the first frequency band covers a Bluetooth wireless transmission technology and a working frequency of a wireless network technology, and the second frequency band covers a global satellite positioning system. The working frequency.
The dual feed point broadband antenna according to claim 1, wherein the path lengths of the first arm and the second arm are respectively a quarter of the resonant wavelength of the operating frequency.
The dual feed point wideband antenna of claim 1, wherein the radiating portion is made of a single piece of metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW103213307U TWM493775U (en) | 2014-07-25 | 2014-07-25 | Dual feed-in point type broadband antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW103213307U TWM493775U (en) | 2014-07-25 | 2014-07-25 | Dual feed-in point type broadband antenna |
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| Publication Number | Publication Date |
|---|---|
| TWM493775U true TWM493775U (en) | 2015-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| TW103213307U TWM493775U (en) | 2014-07-25 | 2014-07-25 | Dual feed-in point type broadband antenna |
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| Country | Link |
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| TW (1) | TWM493775U (en) |
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2014
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