TWI784678B

TWI784678B - Mobile device supporting wideband operation

Info

Publication number: TWI784678B
Application number: TW110130649A
Authority: TW
Inventors: 張琨盛; 林敬基
Original assignee: 宏碁股份有限公司
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-11-21
Also published as: TW202310499A

Abstract

A mobile device includes a first radiation element, a second radiation element, a third radiation element, a fourth radiation element, and a dielectric substrate. The first radiation element has a feeding point. The second radiation element is coupled to a ground voltage. The second radiation element is adjacent to the first radiation element. The third radiation element is coupled to the ground voltage. The third radiation element is adjacent to the first radiation element. The fourth radiation element is coupled to the second radiation element. The fourth radiation element is at least partially surrounded by the second radiation element. The first radiation element, the second radiation element, the third radiation element, and the fourth radiation element are disposed on a first surface of the dielectric substrate. An antenna structure is formed by the first radiation element, the second radiation element, the third radiation element, and the fourth radiation element.

Description

支援寬頻操作之行動裝置Mobile devices that support broadband operation

本發明係關於一種行動裝置，特別係關於一種行動裝置及其天線結構。The present invention relates to a mobile device, in particular to a mobile device and its antenna structure.

隨著行動通訊技術的發達，行動裝置在近年日益普遍。有些涵蓋長距離的無線通訊範圍，例如：行動電話使用2G、3G、LTE(Long Term Evolution)系統及其所使用700MHz、850 MHz、900MHz、1800MHz、1900MHz、2100MHz、2300MHz以及2500MHz的頻帶進行通訊，而有些則涵蓋短距離的無線通訊範圍，例如：Wi-Fi、Bluetooth系統使用2.4GHz、5.2GHz和5.8GHz的頻帶進行通訊。With the development of mobile communication technology, mobile devices have become increasingly popular in recent years. Some cover long-distance wireless communication ranges, for example: mobile phones use 2G, 3G, LTE (Long Term Evolution) systems and their frequency bands of 700MHz, 850MHz, 900MHz, 1800MHz, 1900MHz, 2100MHz, 2300MHz and 2500MHz for communication, And some cover short-distance wireless communication ranges, for example: Wi-Fi, Bluetooth systems use 2.4GHz, 5.2GHz and 5.8GHz frequency bands for communication.

天線為無線通訊領域中不可缺少之元件。倘若用於接收或發射信號之天線其頻寬(Bandwidth)不足，則很容易造成行動裝置之通訊品質下降。因此，如何設計出小尺寸、寬頻帶之天線元件，對天線設計者而言是一項重要課題。Antenna is an indispensable component in the field of wireless communication. If the bandwidth of the antenna used to receive or transmit signals is insufficient, it will easily cause the communication quality of the mobile device to degrade. Therefore, how to design a small-sized, wide-band antenna element is an important issue for antenna designers.

在較佳實施例中，本發明提出一種支援寬頻操作之行動裝置，包括：一第一輻射部，具有一饋入點；一第二輻射部，耦接至一接地電位，其中該第二輻射部係鄰近於該第一輻射部；一第三輻射部，耦接至該接地電位，其中該第三輻射部係鄰近於該第一輻射部；一第四輻射部，耦接至該第二輻射部，其中該第四輻射部係至少部份由該第二輻射部所包圍；以及一介質基板，具有相對之一第一表面和一第二表面，其中該第一輻射部、該第二輻射部、該第三輻射部，以及該第四輻射部皆設置於該介質基板之該第一表面；其中該第一輻射部、該第二輻射部、該第三輻射部，以及該第四輻射部係共同形成一天線結構。In a preferred embodiment, the present invention provides a mobile device supporting broadband operation, including: a first radiating part having a feed-in point; a second radiating part coupled to a ground potential, wherein the second radiating part part is adjacent to the first radiating part; a third radiating part is coupled to the ground potential, wherein the third radiating part is adjacent to the first radiating part; a fourth radiating part is coupled to the second a radiating portion, wherein the fourth radiating portion is at least partially surrounded by the second radiating portion; and a dielectric substrate having an opposite first surface and a second surface, wherein the first radiating portion, the second The radiating portion, the third radiating portion, and the fourth radiating portion are all disposed on the first surface of the dielectric substrate; wherein the first radiating portion, the second radiating portion, the third radiating portion, and the fourth radiating portion The radiating parts jointly form an antenna structure.

為讓本發明之目的、特徵和優點能更明顯易懂，下文特舉出本發明之具體實施例，並配合所附圖式，作詳細說明如下。In order to make the purpose, features and advantages of the present invention more comprehensible, specific embodiments of the present invention are listed below, together with the accompanying drawings, for detailed description as follows.

在說明書及申請專利範圍當中使用了某些詞彙來指稱特定的元件。本領域技術人員應可理解，硬體製造商可能會用不同的名詞來稱呼同一個元件。本說明書及申請專利範圍並不以名稱的差異來作為區分元件的方式，而是以元件在功能上的差異來作為區分的準則。在通篇說明書及申請專利範圍當中所提及的「包含」及「包括」一詞為開放式的用語，故應解釋成「包含但不僅限定於」。「大致」一詞則是指在可接受的誤差範圍內，本領域技術人員能夠在一定誤差範圍內解決所述技術問題，達到所述基本之技術效果。此外，「耦接」一詞在本說明書中包含任何直接及間接的電性連接手段。因此，若文中描述一第一裝置耦接至一第二裝置，則代表該第一裝置可直接電性連接至該第二裝置，或經由其它裝置或連接手段而間接地電性連接至該第二裝置。Certain terms are used in the specification and claims to refer to particular elements. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This description and the scope of the patent application do not use the difference in name as a way to distinguish components, but use the difference in function of components as a criterion for distinguishing. The words "comprising" and "comprising" mentioned throughout the specification and scope of patent application are open-ended terms, so they should be interpreted as "including but not limited to". The term "approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and achieve the basic technical effect. In addition, the term "coupled" in this specification includes any direct and indirect electrical connection means. Therefore, if it is described that a first device is coupled to a second device, it means that the first device can be directly electrically connected to the second device, or indirectly electrically connected to the second device through other devices or connection means. Two devices.

第1圖係顯示根據本發明一實施例所述之行動裝置100之俯視圖。行動裝置100可以是一智慧型手機、一平板電腦，或是一筆記型電腦。如第1圖所示，行動裝置100包括：一第一輻射部(Radiation Element)110、一第二輻射部120、一第三輻射部130、一第四輻射部140，以及一介質基板(Dielectric Substrate)170，其中第一輻射部110、第二輻射部120、第三輻射部130，以及第四輻射部140皆可用金屬材質製成，例如：銅、銀、鋁、鐵，或是其合金。必須理解的是，雖然未顯示於第1圖中，但行動裝置100更可包括其他元件，例如：一處理器、一觸控面板、一揚聲器、一電池模組，以及一外殼。FIG. 1 shows a top view of a mobile device 100 according to an embodiment of the present invention. The mobile device 100 can be a smart phone, a tablet computer, or a notebook computer. As shown in Figure 1, the mobile device 100 includes: a first radiation element (Radiation Element) 110, a second radiation element 120, a third radiation element 130, a fourth radiation element 140, and a dielectric substrate (Dielectric Substrate) 170, wherein the first radiating portion 110, the second radiating portion 120, the third radiating portion 130, and the fourth radiating portion 140 can all be made of metal materials, such as copper, silver, aluminum, iron, or their alloys . It should be understood that although not shown in FIG. 1 , the mobile device 100 may further include other components, such as a processor, a touch panel, a speaker, a battery module, and a casing.

第一輻射部110可大致呈現一Z字形(或是一N字形)。詳細而言，第一輻射部110具有一第一端111和一第二端112，其中一饋入點(Feeding Point)FP係位於第一輻射部110之第一端111處，而第一輻射部110之第二端112為一開路端(Open End)。饋入點FP更可耦接至一信號源(Signal Source)190。例如，信號源190可為一射頻(Radio Frequency，RF)模組。在一些實施例中，第一輻射部110包括一第一部份114、一第二部份115，以及一第三部份116，其中第一部份114係鄰近於第一輻射部110之第一端111，第三部份116係鄰近於第一輻射部110之第二端112，而第二部份115係耦接於第三部份116和第一部份114之間。必須注意的是，本說明書中所謂「鄰近」或「相鄰」一詞可指對應之二元件間距小於一既定距離(例如：5mm或更短)，亦可包括對應之二元件彼此直接接觸之情況(亦即，前述間距縮短至0)。在第一輻射部110之中，第三部份116可與第一部份114大致互相平行，而第二部份115則可與第一部份114和第三部份116皆大致互相垂直。The first radiating portion 110 may roughly present a Z-shape (or an N-shape). Specifically, the first radiating portion 110 has a first end 111 and a second end 112, wherein a feeding point (Feeding Point) FP is located at the first end 111 of the first radiating portion 110, and the first radiating The second end 112 of the portion 110 is an open end (Open End). The feed point FP can be further coupled to a signal source (Signal Source) 190 . For example, the signal source 190 can be a radio frequency (Radio Frequency, RF) module. In some embodiments, the first radiating portion 110 includes a first portion 114, a second portion 115, and a third portion 116, wherein the first portion 114 is adjacent to the second portion of the first radiating portion 110. One end 111 , the third portion 116 are adjacent to the second end 112 of the first radiation portion 110 , and the second portion 115 is coupled between the third portion 116 and the first portion 114 . It must be noted that the term "adjacent" or "adjacent" in this specification may refer to the distance between the corresponding two elements being less than a predetermined distance (for example: 5mm or less), and may also include that the corresponding two elements are in direct contact with each other. case (ie, the aforementioned spacing is shortened to 0). In the first radiating portion 110 , the third portion 116 is approximately parallel to the first portion 114 , and the second portion 115 is approximately perpendicular to both the first portion 114 and the third portion 116 .

第二輻射部120可以大致呈現一迴圈形(Loop Shape)。詳細而言，第二輻射部120具有一第一端121和一第二端122，其中第二輻射部120之第一端121係耦接至一接地電位(Ground Voltage)VSS，而第二輻射部120之第二端122為一開路端。例如，接地電位VSS可由行動裝置100之一系統接地面(System Ground Plane)所提供(未顯示)。第二輻射部120之第二端122可與其第一端121彼此相鄰。第二輻射部120之第二端122和第一輻射部110之第二端112可大致朝相反且互相遠離之方向作延伸。在一些實施例中，第二輻射部120包括一第一部份124和一第二部份125，其可各自大致呈現一L字形。第二輻射部120係鄰近於第一輻射部110，其中第二輻射部120之第二部份125和第一輻射部110之間可形成一第一耦合間隙(Coupling Gap)GC1。The second radiating portion 120 may roughly present a loop shape. In detail, the second radiation part 120 has a first end 121 and a second end 122, wherein the first end 121 of the second radiation part 120 is coupled to a ground potential (Ground Voltage) VSS, and the second radiation The second end 122 of the portion 120 is an open circuit end. For example, the ground potential VSS may be provided by a system ground plane (not shown) of the mobile device 100 . The second end 122 of the second radiation part 120 can be adjacent to the first end 121 thereof. The second end 122 of the second radiating portion 120 and the second end 112 of the first radiating portion 110 may generally extend in directions opposite and away from each other. In some embodiments, the second radiating portion 120 includes a first portion 124 and a second portion 125 , each of which may roughly present an L-shape. The second radiating portion 120 is adjacent to the first radiating portion 110 , wherein a first coupling gap (Coupling Gap) GC1 can be formed between the second portion 125 of the second radiating portion 120 and the first radiating portion 110 .

第三輻射部130可以大致呈現一折線形。詳細而言，第三輻射部130具有一第一端131和一第二端132，其中第三輻射部130之第一端131係耦接至接地電位VSS，而第三輻射部130之第二端132為一開路端。第三輻射部130之第二端132和第一輻射部110之第二端112可大致朝相同方向作延伸。在一些實施例中，第三輻射部130包括互相耦接之一第一部份134和一第二部份135，其可各自大致呈現一直條形。第三輻射部130係鄰近於第一輻射部110，其中第三輻射部130之第二部份135和第一輻射部110之間可形成一第二耦合間隙GC2。在一些實施例中，第三輻射部130之第一部份134和第二部份135之間具有一夾角θ1，其可介於90度至180度之間。The third radiating portion 130 may roughly present a zigzag shape. Specifically, the third radiating portion 130 has a first end 131 and a second end 132, wherein the first end 131 of the third radiating portion 130 is coupled to the ground potential VSS, and the second end 130 of the third radiating portion 130 Terminal 132 is an open circuit terminal. The second end 132 of the third radiating portion 130 and the second end 112 of the first radiating portion 110 may extend substantially in the same direction. In some embodiments, the third radiating portion 130 includes a first portion 134 and a second portion 135 coupled to each other, each of which may be substantially straight. The third radiating part 130 is adjacent to the first radiating part 110 , wherein a second coupling gap GC2 can be formed between the second part 135 of the third radiating part 130 and the first radiating part 110 . In some embodiments, there is an included angle θ1 between the first portion 134 and the second portion 135 of the third radiation portion 130 , which may be between 90 degrees and 180 degrees.

第四輻射部140可以大致呈現一直條形。詳細而言，第四輻射部140具有一第一端141和一第二端142，其中第四輻射部140之第一端141係耦接至第二輻射部120上之一連接點(Connection Point)CP1，而第四輻射部140之第二端142為一開路端。第四輻射部140之第二端142和第一輻射部110之第二端112可大致朝相同方向作延伸。在一些實施例中，第四輻射部140係完全或至少部份由第二輻射部120所包圍。The fourth radiating portion 140 may be substantially in the shape of a straight bar. Specifically, the fourth radiating portion 140 has a first end 141 and a second end 142, wherein the first end 141 of the fourth radiating portion 140 is coupled to a connection point (Connection Point) on the second radiating portion 120 ) CP1, and the second end 142 of the fourth radiation portion 140 is an open end. The second end 142 of the fourth radiating portion 140 and the second end 112 of the first radiating portion 110 may extend substantially in the same direction. In some embodiments, the fourth radiating portion 140 is completely or at least partially surrounded by the second radiating portion 120 .

介質基板170可為一FR4(Flame Retardant 4)基板、一印刷電路板(Printed Circuit Board，PCB)，或是一軟性電路板(Flexible Printed Circuit，FPC)。介質基板170具有相對之一第一表面E1和一第二表面E2，其中第一輻射部110、第二輻射部120、第三輻射部130，以及第四輻射部140皆可設置於介質基板170之第一表面E1。在較佳實施例中，第一輻射部110、第二輻射部120、第三輻射部130、以及第四輻射部140係共同形成平面式之一天線結構(Antenna Structure)。The dielectric substrate 170 can be an FR4 (Flame Retardant 4) substrate, a printed circuit board (Printed Circuit Board, PCB), or a flexible printed circuit board (Flexible Printed Circuit, FPC). The dielectric substrate 170 has an opposite first surface E1 and a second surface E2, wherein the first radiating portion 110 , the second radiating portion 120 , the third radiating portion 130 , and the fourth radiating portion 140 can all be disposed on the dielectric substrate 170 The first surface E1. In a preferred embodiment, the first radiating portion 110 , the second radiating portion 120 , the third radiating portion 130 , and the fourth radiating portion 140 jointly form a planar antenna structure (Antenna Structure).

第2圖係顯示根據本發明一實施例所述之行動裝置100之天線結構之返回損失(Return Loss)圖，其中橫軸代表操作頻率(MHz)，而縱軸代表返回損失(dB)。根據第2圖之量測結果，行動裝置100之天線結構可涵蓋一第一頻帶FB1、一第二頻帶FB2、一第三頻帶FB3、一第四頻帶FB4、一第五頻帶FB5，以及一第六頻帶FB6。例如，第一頻帶FB1可介於600MHz至700MHz之間，第二頻帶FB2可介於700MHz至960MHz之間，第三頻帶FB3可介於1710MHz至2170MHz之間，第四頻帶FB4可介於2300MHz至2700MHz之間，第五頻帶FB5可介於3300MHz至3800MHz之間，而第六頻帶FB6可介於4000MHz至6000MHz之間。因此，行動裝置100之天線結構將至少可支援新世代5G通訊之sub-6GHz之寬頻操作。FIG. 2 shows a Return Loss graph of the antenna structure of the mobile device 100 according to an embodiment of the present invention, wherein the horizontal axis represents the operating frequency (MHz), and the vertical axis represents the Return Loss (dB). According to the measurement results in FIG. 2, the antenna structure of the mobile device 100 can cover a first frequency band FB1, a second frequency band FB2, a third frequency band FB3, a fourth frequency band FB4, a fifth frequency band FB5, and a first frequency band. Six-band FB6. For example, the first frequency band FB1 can be between 600MHz and 700MHz, the second frequency band FB2 can be between 700MHz and 960MHz, the third frequency band FB3 can be between 1710MHz and 2170MHz, and the fourth frequency band FB4 can be between 2300MHz and 2170MHz. Between 2700MHz, the fifth frequency band FB5 may be between 3300MHz and 3800MHz, and the sixth frequency band FB6 may be between 4000MHz and 6000MHz. Therefore, the antenna structure of the mobile device 100 can at least support the sub-6GHz broadband operation of the new generation 5G communication.

在天線原理方面，第一輻射部110可激發產生前述之第二頻帶FB2和第三頻帶FB3。第二輻射部120可由第一輻射部110所耦合激發，以產生前述之第一頻帶FB1。第三輻射部130可由第一輻射部110所耦合激發，以產生前述之第四頻帶FB4。另外，第二輻射部120和第四輻射部140更可共同激發產生前述之第五頻帶FB5和第六頻帶FB6。In terms of antenna principle, the first radiating part 110 can excite and generate the aforementioned second frequency band FB2 and third frequency band FB3 . The second radiating part 120 can be coupled and excited by the first radiating part 110 to generate the aforementioned first frequency band FB1. The third radiating part 130 can be coupled and excited by the first radiating part 110 to generate the aforementioned fourth frequency band FB4. In addition, the second radiating part 120 and the fourth radiating part 140 can further excite and generate the aforementioned fifth frequency band FB5 and sixth frequency band FB6 .

第3圖係顯示根據本發明一實施例所述之行動裝置100之天線結構之輻射效率圖，其中橫軸代表操作頻率(MHz)，而縱軸代表輻射效率(dB)。根據第3圖之量測結果，行動裝置100之天線結構於前述第一頻帶FB1、第二頻帶FB2、第三頻帶FB3、第四頻帶FB4、第五頻帶FB5，以及第六頻帶FB6中之輻射效率皆可達-4dB或更高，此已可滿足新世代5G通訊之實際應用需求。FIG. 3 is a radiation efficiency graph showing the antenna structure of the mobile device 100 according to an embodiment of the present invention, wherein the horizontal axis represents the operating frequency (MHz), and the vertical axis represents the radiation efficiency (dB). According to the measurement results in Figure 3, the radiation of the antenna structure of the mobile device 100 in the aforementioned first frequency band FB1, second frequency band FB2, third frequency band FB3, fourth frequency band FB4, fifth frequency band FB5, and sixth frequency band FB6 The efficiency can reach -4dB or higher, which can meet the practical application requirements of the new generation of 5G communication.

在一些實施例中，行動裝置100之元件尺寸可如下列所述。第一輻射部110之長度L1(亦即，由第一端111至第二端112之長度L1)可以大致等於天線結構之第二頻帶FB2之0.25倍波長(λ/4)。第二輻射部120之長度L2(亦即，由第一端121至第二端122之長度L2)可以大致等於天線結構之第一頻帶FB1之0.25倍波長(λ/4)。由第二輻射部120之第一端121起，經過連接點CP1，再至第四輻射部140之第二端142可形成一電流路徑PA1，其長度可以大致等於天線結構之第五頻帶FB5之0.25倍波長(λ/4)。第一耦合間隙GC1之寬度可介於0.5mm至1.5mm之間。第二耦合間隙GC2之寬度可介於0.5mm至1.5mm之間。第三輻射部130之第一部份134和第二部份135之間之夾角θ1可以大約等於135度。第一輻射部110、第二輻射部120、第三輻射部130，以及第四輻射部140之每一者之寬度可介於1mm至2mm之間。介質基板170之長度可介於70mm至75mm之間。介質基板170之寬度可介於9mm至10mm之間。以上元件尺寸之範圍係根據多次實驗結果而得出，其有助於最佳化行動裝置100之天線結構之操作頻寬(Operation Bandwidth)和阻抗匹配(Impedance Matching)。In some embodiments, the dimensions of the components of the mobile device 100 may be as follows. The length L1 of the first radiating portion 110 (ie, the length L1 from the first end 111 to the second end 112 ) may be approximately equal to 0.25 times the wavelength (λ/4) of the second frequency band FB2 of the antenna structure. The length L2 of the second radiating portion 120 (ie, the length L2 from the first end 121 to the second end 122 ) may be approximately equal to 0.25 times the wavelength (λ/4) of the first frequency band FB1 of the antenna structure. From the first end 121 of the second radiating part 120, through the connection point CP1, to the second end 142 of the fourth radiating part 140, a current path PA1 can be formed, and its length can be roughly equal to that of the fifth frequency band FB5 of the antenna structure. 0.25 times the wavelength (λ/4). The width of the first coupling gap GC1 may be between 0.5 mm and 1.5 mm. The width of the second coupling gap GC2 may be between 0.5 mm and 1.5 mm. The angle θ1 between the first portion 134 and the second portion 135 of the third radiating portion 130 may be approximately equal to 135 degrees. The width of each of the first radiating portion 110 , the second radiating portion 120 , the third radiating portion 130 , and the fourth radiating portion 140 may be between 1 mm and 2 mm. The length of the dielectric substrate 170 may be between 70 mm and 75 mm. The width of the dielectric substrate 170 may be between 9 mm and 10 mm. The ranges of the above element sizes are obtained according to the results of multiple experiments, which help to optimize the operation bandwidth (Operation Bandwidth) and impedance matching (Impedance Matching) of the antenna structure of the mobile device 100 .

第4A圖係顯示根據本發明一實施例所述之天線結構400於介質基板170之第一表面E1之一部份元件之俯視圖。第4B圖係顯示根據本發明一實施例所述之天線結構400於介質基板170之第二表面E2之另一部份元件之透視圖(亦即，將介質基板170視為一透明元件)。第4C圖係顯示根據本發明一實施例所述之天線結構400之側視圖。第4A、4B、4C圖和第1圖相似。在第4A、4B、4C圖之實施例中，天線結構400更包括一第一延伸部(Extension Element)450、一第二延伸部460、一第一導電貫通元件(Conductive Via Element)481，以及一第二導電貫通元件482，其中第一導電貫通元件481和第二導電貫通元件482皆可穿透介質基板170，而第一延伸部450和第二延伸部460皆可設置於介質基板170之第二表面E2。例如，第一導電貫通元件481可位於第二輻射部120之第一部份124和第二部份125之交界處。第一延伸部450可以大致呈現一直條形。第一延伸部450具有一第一端451和一第二端452，其中第一延伸部450之第一端451係經由第一導電貫通元件481耦接至第二輻射部120，而第一延伸部450之第二端452為一開路端。例如，第二導電貫通元件482可位於第二輻射部120之第二端122處。第二延伸部460可以大致呈現一L字形。第二延伸部460具有一第一端461和一第二端462，其中第二延伸部460之第一端461係經由第二導電貫通元件482耦接至第二輻射部120，而第二延伸部460之第二端462為一開路端。根據實際量測結果，此種雙面式配置不僅能增加行動裝置400之天線結構之設計彈性，更能進一步提升天線結構之操作頻寬。第4A、4B、4C圖之行動裝置400之其餘特徵皆與第1圖之行動裝置100類似，故此二實施例均可達成相似之操作效果。FIG. 4A is a top view of some components of the antenna structure 400 on the first surface E1 of the dielectric substrate 170 according to an embodiment of the present invention. FIG. 4B is a perspective view showing another part of the antenna structure 400 on the second surface E2 of the dielectric substrate 170 according to an embodiment of the present invention (that is, the dielectric substrate 170 is regarded as a transparent element). FIG. 4C shows a side view of the antenna structure 400 according to an embodiment of the present invention. Figures 4A, 4B, and 4C are similar to Figure 1 . In the embodiment shown in Figures 4A, 4B, and 4C, the antenna structure 400 further includes a first extension (Extension Element) 450, a second extension 460, a first conductive via element (Conductive Via Element) 481, and A second conductive through element 482, wherein both the first conductive through element 481 and the second conductive through element 482 can penetrate the dielectric substrate 170, and both the first extension 450 and the second extension 460 can be disposed on the dielectric substrate 170 Second surface E2. For example, the first conductive via element 481 may be located at the junction of the first portion 124 and the second portion 125 of the second radiation portion 120 . The first extending portion 450 may be substantially straight. The first extension 450 has a first end 451 and a second end 452, wherein the first end 451 of the first extension 450 is coupled to the second radiation portion 120 through the first conductive through element 481, and the first extension The second end 452 of portion 450 is an open circuit end. For example, the second conductive via element 482 may be located at the second end 122 of the second radiation portion 120 . The second extension portion 460 may be substantially L-shaped. The second extension 460 has a first end 461 and a second end 462, wherein the first end 461 of the second extension 460 is coupled to the second radiation portion 120 through the second conductive through element 482, and the second extension The second end 462 of the portion 460 is an open circuit end. According to actual measurement results, this double-sided configuration can not only increase the design flexibility of the antenna structure of the mobile device 400, but also further improve the operating bandwidth of the antenna structure. The remaining features of the mobile device 400 in Figures 4A, 4B, and 4C are similar to the mobile device 100 in Figure 1 , so the two embodiments can achieve similar operational effects.

本發明提出一種新穎之行動裝置和天線結構，相較於傳統設計，本發明至少具有小尺寸、寬頻帶、低製造成本等優勢，故其很適合應用於各種各式之行動通訊裝置當中。The present invention proposes a novel mobile device and antenna structure. Compared with traditional designs, the present invention has at least the advantages of small size, wide frequency band, and low manufacturing cost, so it is very suitable for various mobile communication devices.

值得注意的是，以上所述之元件尺寸、元件形狀，以及頻率範圍皆非為本發明之限制條件。天線設計者可以根據不同需要調整這些設定值。本發明之行動裝置及天線結構並不僅限於第1-4圖所圖示之狀態。本發明可以僅包括第1-4圖之任何一或複數個實施例之任何一或複數項特徵。換言之，並非所有圖示之特徵均須同時實施於本發明之行動裝置及天線結構當中。It should be noted that the device size, device shape, and frequency range mentioned above are not limitations of the present invention. Antenna designers can adjust these settings according to different needs. The mobile device and the antenna structure of the present invention are not limited to the states shown in FIGS. 1-4. The present invention may only include any one or multiple features of any one or multiple embodiments of Figures 1-4. In other words, not all the illustrated features must be implemented in the mobile device and the antenna structure of the present invention at the same time.

在本說明書以及申請專利範圍中的序數，例如「第一」、「第二」、「第三」等等，彼此之間並沒有順序上的先後關係，其僅用於標示區分兩個具有相同名字之不同元件。The ordinal numbers in this specification and the scope of the patent application, such as "first", "second", "third", etc., have no sequential relationship with each other, and are only used to mark and distinguish between two The different elements of the name.

本發明雖以較佳實施例揭露如上，然其並非用以限定本發明的範圍，任何熟習此項技藝者，在不脫離本發明之精神和範圍內，當可做些許的更動與潤飾，因此本發明之保護範圍當視後附之申請專利範圍所界定者為準。Although the present invention is disclosed above with preferred embodiments, it is not intended to limit the scope of the present invention. Anyone skilled in this art can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore The scope of protection of the present invention should be defined by the scope of the appended patent application.

100,400:行動裝置 110:第一輻射部 111:第一輻射部之第一端 112:第一輻射部之第二端 114:第一輻射部之第一部份 115:第一輻射部之第二部份 116:第一輻射部之第三部份 120:第二輻射部 121:第二輻射部之第一端 122:第二輻射部之第二端 124:第二輻射部之第一部份 125:第二輻射部之第二部份 130:第三輻射部 131:第三輻射部之第一端 132:第三輻射部之第二端 134:第三輻射部之第一部份 135:第三輻射部之第二部份 140:第四輻射部 141:第四輻射部之第一端 142:第四輻射部之第二端 170:介質基板 190:信號源 450:第一延伸部 451:第一延伸部之第一端 452:第一延伸部之第二端 460:第二延伸部 461:第二延伸部之第一端 462:第二延伸部之第二端 481:第一導電貫通元件 482:第二導電貫通元件 CP1:連接點 E1:第一表面 E2:第二表面 FB1:第一頻帶 FB2:第二頻帶 FB3:第三頻帶 FB4:第四頻帶 FB5:第五頻帶 FB6:第六頻帶 FP:饋入點 GC1:第一耦合間隙 GC2:第二耦合間隙 L1,L2:長度 PA1:電流路徑 VSS:接地電位 θ1:夾角 100,400: mobile devices 110: The first radiation department 111: the first end of the first radiation part 112: the second end of the first radiation part 114: The first part of the first radiation part 115: The second part of the first radiation part 116: The third part of the first radiation part 120: Second radiation department 121: the first end of the second radiation part 122: the second end of the second radiation part 124: The first part of the second radiation part 125: The second part of the second radiation part 130: The third radiation department 131: the first end of the third radiation part 132: The second end of the third radiation part 134: The first part of the third radiation part 135: The second part of the third radiation part 140: Fourth Radiation Division 141: The first end of the fourth radiation part 142: The second end of the fourth radiation part 170: dielectric substrate 190: signal source 450: first extension 451: the first end of the first extension 452: the second end of the first extension 460: second extension 461: the first end of the second extension 462: the second end of the second extension 481: the first conductive through element 482: second conductive through element CP1: connection point E1: first surface E2: second surface FB1: the first frequency band FB2: second frequency band FB3: third frequency band FB4: Fourth frequency band FB5: fifth frequency band FB6: sixth frequency band FP: Feed point GC1: first coupling gap GC2: second coupling gap L1, L2: Length PA1: current path VSS: ground potential θ1: included angle

第1圖係顯示根據本發明一實施例所述之行動裝置之俯視圖。第2圖係顯示根據本發明一實施例所述之行動裝置之天線結構之返回損失圖。第3圖係顯示根據本發明一實施例所述之行動裝置之天線結構之輻射效率圖。第4A圖係顯示根據本發明一實施例所述之天線結構於介質基板之第一表面之一部份元件之俯視圖。第4B圖係顯示根據本發明一實施例所述之天線結構於介質基板之第二表面之另一部份元件之透視圖。第4C圖係顯示根據本發明一實施例所述之天線結構之側視圖。 FIG. 1 shows a top view of a mobile device according to an embodiment of the present invention. FIG. 2 is a graph showing the return loss of the antenna structure of the mobile device according to an embodiment of the present invention. FIG. 3 is a graph showing the radiation efficiency of the antenna structure of the mobile device according to an embodiment of the present invention. FIG. 4A is a top view of some elements of the antenna structure on the first surface of the dielectric substrate according to an embodiment of the present invention. FIG. 4B is a perspective view showing another part of the antenna structure on the second surface of the dielectric substrate according to an embodiment of the present invention. FIG. 4C shows a side view of the antenna structure according to an embodiment of the present invention.

100:行動裝置 100:Mobile

110:第一輻射部 110: The first radiation department

111:第一輻射部之第一端 111: the first end of the first radiation part

112:第一輻射部之第二端 112: the second end of the first radiation part

114:第一輻射部之第一部份 114: The first part of the first radiation part

115:第一輻射部之第二部份 115: The second part of the first radiation part

116:第一輻射部之第三部份 116: The third part of the first radiation part

120:第二輻射部 120: Second radiation department

121:第二輻射部之第一端 121: the first end of the second radiation part

122:第二輻射部之第二端 122: the second end of the second radiation part

124:第二輻射部之第一部份 124: The first part of the second radiation part

125:第二輻射部之第二部份 125: The second part of the second radiation part

130:第三輻射部 130: The third radiation department

131:第三輻射部之第一端 131: the first end of the third radiation part

132:第三輻射部之第二端 132: The second end of the third radiation part

134:第三輻射部之第一部份 134: The first part of the third radiation part

135:第三輻射部之第二部份 135: The second part of the third radiation part

140:第四輻射部 140: Fourth Radiation Division

141:第四輻射部之第一端 141: The first end of the fourth radiation part

142:第四輻射部之第二端 142: The second end of the fourth radiation part

170:介質基板 170: dielectric substrate

190:信號源 190: signal source

CP1:連接點 CP1: connection point

E1:第一表面 E1: first surface

E2:第二表面 E2: second surface

FP:饋入點 FP: Feed point

GC1:第一耦合間隙 GC1: first coupling gap

GC2:第二耦合間隙 GC2: second coupling gap

L1,L2:長度 L1, L2: Length

PA1:電流路徑 PA1: current path

VSS:接地電位 VSS: ground potential

θ1:夾角 θ1: included angle

Claims

一種支援寬頻操作之行動裝置，包括：一第一輻射部，具有一饋入點；一第二輻射部，耦接至一接地電位，其中該第二輻射部係鄰近於該第一輻射部；一第三輻射部，耦接至該接地電位，其中該第三輻射部係鄰近於該第一輻射部；一第四輻射部，耦接至該第二輻射部，其中該第四輻射部係至少部份由該第二輻射部所包圍；以及一介質基板，具有相對之一第一表面和一第二表面，其中該第一輻射部、該第二輻射部、該第三輻射部，以及該第四輻射部皆設置於該介質基板之該第一表面；其中該第一輻射部、該第二輻射部、該第三輻射部，以及該第四輻射部係共同形成一天線結構；其中該第四輻射部係呈現一直條形。 A mobile device supporting broadband operation, comprising: a first radiating part having a feeding point; a second radiating part coupled to a ground potential, wherein the second radiating part is adjacent to the first radiating part; a third radiating portion coupled to the ground potential, wherein the third radiating portion is adjacent to the first radiating portion; a fourth radiating portion coupled to the second radiating portion, wherein the fourth radiating portion is at least partially surrounded by the second radiating portion; and a dielectric substrate having an opposing first surface and a second surface, wherein the first radiating portion, the second radiating portion, the third radiating portion, and The fourth radiating portion is all disposed on the first surface of the dielectric substrate; wherein the first radiating portion, the second radiating portion, the third radiating portion, and the fourth radiating portion jointly form an antenna structure; wherein The fourth radiating portion presents a straight bar shape.

如請求項1所述之行動裝置，其中該第一輻射部係呈現一Z字形。 The mobile device as claimed in claim 1, wherein the first radiating portion presents a zigzag shape.

如請求項1所述之行動裝置，其中該第二輻射部係呈現兩末端彼此相鄰近之一開放式迴圈形。 The mobile device according to claim 1, wherein the second radiating portion is in the shape of an open loop with two ends adjacent to each other.

如請求項1所述之行動裝置，其中該第三輻射部包括互相耦接之一第一部份和一第二部份，而該第一部份和該第二部份之間之一夾角係介於90度至180度之間。 The mobile device as claimed in claim 1, wherein the third radiating part includes a first part and a second part coupled to each other, and an angle between the first part and the second part The system is between 90 degrees and 180 degrees.

如請求項1所述之行動裝置，其中該天線結構涵蓋一第一頻帶、一第二頻帶、一第三頻帶、一第四頻帶、一第五頻帶，以及一第六頻帶，該第一頻帶係介於600MHz至700MHz之間，該第二頻帶係介於700MHz至960MHz之間，該第三頻帶係介於1710MHz至2170MHz之間，該第四頻帶係介於2300MHz至2700MHz之間，該第五頻帶係介於3300MHz至3800MHz之間，而該第六頻帶係介於4000MHz至6000MHz之間。 The mobile device as described in claim 1, wherein the antenna structure covers a first frequency band, a second frequency band, a third frequency band, a fourth frequency band, a fifth frequency band, and a sixth frequency band, the first frequency band is between 600MHz and 700MHz, the second frequency band is between 700MHz and 960MHz, the third frequency band is between 1710MHz and 2170MHz, the fourth frequency band is between 2300MHz and 2700MHz, the first The fifth frequency band is between 3300MHz and 3800MHz, and the sixth frequency band is between 4000MHz and 6000MHz.

如請求項5所述之行動裝置，其中該第一輻射部之長度係大致等於該第二頻帶之0.25倍波長。 The mobile device as claimed in claim 5, wherein the length of the first radiation part is approximately equal to 0.25 times the wavelength of the second frequency band.

如請求項5所述之行動裝置，其中該第二輻射部之長度係大致等於該第一頻帶之0.25倍波長。 The mobile device as claimed in claim 5, wherein the length of the second radiation part is approximately equal to 0.25 times the wavelength of the first frequency band.

如請求項1所述之行動裝置，更包括：一第一導電貫通元件，穿透該介質基板；以及一第一延伸部，設置於該介質基板之該第二表面，其中該第一延伸部係經由該第一導電貫通元件耦接至該第二輻射部。 The mobile device as claimed in claim 1, further comprising: a first conductive through element penetrating through the dielectric substrate; and a first extension disposed on the second surface of the dielectric substrate, wherein the first extension is coupled to the second radiating portion via the first conductive through-element.

如請求項8所述之行動裝置，更包括：一第二導電貫通元件，穿透該介質基板；以及一第二延伸部，設置於該介質基板之該第二表面，其中該第二延伸部係經由該第二導電貫通元件耦接至該第二輻射部。 The mobile device as claimed in claim 8, further comprising: a second conductive through element penetrating through the dielectric substrate; and a second extension disposed on the second surface of the dielectric substrate, wherein the second extension is coupled to the second radiating portion via the second conductive through-element.

一種支援寬頻操作之行動裝置，包括：一第一輻射部，具有一饋入點；一第二輻射部，耦接至一接地電位，其中該第二輻射部係鄰近於該第一輻射部；一第三輻射部，耦接至該接地電位，其中該第三輻射部係鄰近於該第一輻射部；一第四輻射部，耦接至該第二輻射部，其中該第四輻射部係至少部份由該第二輻射部所包圍；以及一介質基板，具有相對之一第一表面和一第二表面，其中該第一輻射部、該第二輻射部、該第三輻射部，以及該第四輻射部皆設置於該介質基板之該第一表面；其中該第一輻射部、該第二輻射部、該第三輻射部，以及該第四輻射部係共同形成一天線結構；其中該天線結構涵蓋一第一頻帶、一第二頻帶、一第三頻帶、一第四頻帶、一第五頻帶，以及一第六頻帶，該第一頻帶係介於600MHz至700MHz之間，該第二頻帶係介於700MHz至960MHz之間，該第三頻帶係介於1710MHz至2170MHz之間，該第四頻帶係介於2300MHz至2700MHz之間，該第五頻帶係介於3300MHz至3800MHz之間，而該第六頻帶係介於4000MHz至6000MHz之間；其中該第一輻射部之長度係大致等於該第二頻帶之0.25倍波長。 A mobile device supporting broadband operation, comprising: a first radiating part having a feeding point; a second radiating part coupled to a ground potential, wherein the second radiating part is adjacent to at the first radiating portion; a third radiating portion coupled to the ground potential, wherein the third radiating portion is adjacent to the first radiating portion; a fourth radiating portion coupled to the second radiating portion, Wherein the fourth radiating portion is at least partially surrounded by the second radiating portion; and a dielectric substrate having an opposite first surface and a second surface, wherein the first radiating portion, the second radiating portion, The third radiating portion and the fourth radiating portion are both disposed on the first surface of the dielectric substrate; wherein the first radiating portion, the second radiating portion, the third radiating portion, and the fourth radiating portion are collectively form an antenna structure; wherein the antenna structure covers a first frequency band, a second frequency band, a third frequency band, a fourth frequency band, a fifth frequency band, and a sixth frequency band, the first frequency band being between 600MHz to 700MHz, the second frequency band is between 700MHz and 960MHz, the third frequency band is between 1710MHz and 2170MHz, the fourth frequency band is between 2300MHz and 2700MHz, and the fifth frequency band is between Between 3300MHz and 3800MHz, and the sixth frequency band is between 4000MHz and 6000MHz; wherein the length of the first radiating part is roughly equal to 0.25 times the wavelength of the second frequency band.

一種支援寬頻操作之行動裝置，包括：一第一輻射部，具有一饋入點；一第二輻射部，耦接至一接地電位，其中該第二輻射部係鄰近於該第一輻射部；一第三輻射部，耦接至該接地電位，其中該第三輻射部係鄰近於該第一輻射部；一第四輻射部，耦接至該第二輻射部，其中該第四輻射部係至少部份由該第二輻射部所包圍；以及一介質基板，具有相對之一第一表面和一第二表面，其中該第一輻射部、該第二輻射部、該第三輻射部，以及該第四輻射部皆設置於該介質基板之該第一表面；其中該第一輻射部、該第二輻射部、該第三輻射部，以及該第四輻射部係共同形成一天線結構；其中該天線結構涵蓋一第一頻帶、一第二頻帶、一第三頻帶、一第四頻帶、一第五頻帶，以及一第六頻帶，該第一頻帶係介於600MHz至700MHz之間，該第二頻帶係介於700MHz至960MHz之間，該第三頻帶係介於1710MHz至2170MHz之間，該第四頻帶係介於2300MHz至2700MHz之間，該第五頻帶係介於3300MHz至3800MHz之間，而該第六頻帶係介於4000MHz至6000MHz之間；其中該第二輻射部之長度係大致等於該第一頻帶之0.25倍波長。 A mobile device supporting broadband operation, comprising: a first radiating part having a feeding point; a second radiating part coupled to a ground potential, wherein the second radiating part is adjacent to at the first radiating portion; a third radiating portion coupled to the ground potential, wherein the third radiating portion is adjacent to the first radiating portion; a fourth radiating portion coupled to the second radiating portion, Wherein the fourth radiating portion is at least partially surrounded by the second radiating portion; and a dielectric substrate having an opposite first surface and a second surface, wherein the first radiating portion, the second radiating portion, The third radiating portion and the fourth radiating portion are both disposed on the first surface of the dielectric substrate; wherein the first radiating portion, the second radiating portion, the third radiating portion, and the fourth radiating portion are collectively form an antenna structure; wherein the antenna structure covers a first frequency band, a second frequency band, a third frequency band, a fourth frequency band, a fifth frequency band, and a sixth frequency band, the first frequency band being between 600MHz to 700MHz, the second frequency band is between 700MHz and 960MHz, the third frequency band is between 1710MHz and 2170MHz, the fourth frequency band is between 2300MHz and 2700MHz, and the fifth frequency band is between between 3300MHz and 3800MHz, and the sixth frequency band is between 4000MHz and 6000MHz; wherein the length of the second radiating part is roughly equal to 0.25 times the wavelength of the first frequency band.

一種支援寬頻操作之行動裝置，包括：一第一輻射部，具有一饋入點；一第二輻射部，耦接至一接地電位，其中該第二輻射部係鄰近於該第一輻射部；一第三輻射部，耦接至該接地電位，其中該第三輻射部係鄰近於該第一輻射部；一第四輻射部，耦接至該第二輻射部，其中該第四輻射部係至少部份由該第二輻射部所包圍；以及一介質基板，具有相對之一第一表面和一第二表面，其中該第一輻射部、該第二輻射部、該第三輻射部，以及該第四輻射部皆設置於該介質基板之該第一表面；其中該第一輻射部、該第二輻射部、該第三輻射部，以及該第四輻射部係共同形成一天線結構；其中該行動裝置更包括：一第一導電貫通元件，穿透該介質基板；以及一第一延伸部，設置於該介質基板之該第二表面，其中該第一延伸部係經由該第一導電貫通元件耦接至該第二輻射部。 A mobile device supporting broadband operation, comprising: a first radiating part having a feeding point; a second radiating part coupled to a ground potential, wherein the second radiating part is adjacent to at the first radiating portion; a third radiating portion coupled to the ground potential, wherein the third radiating portion is adjacent to the first radiating portion; a fourth radiating portion coupled to the second radiating portion, Wherein the fourth radiating portion is at least partially surrounded by the second radiating portion; and a dielectric substrate having an opposite first surface and a second surface, wherein the first radiating portion, the second radiating portion, The third radiating portion and the fourth radiating portion are both disposed on the first surface of the dielectric substrate; wherein the first radiating portion, the second radiating portion, the third radiating portion, and the fourth radiating portion are jointly form an antenna structure; wherein the mobile device further includes: a first conductive through element penetrating through the dielectric substrate; and a first extending portion disposed on the second surface of the dielectric substrate, wherein the first extending portion is coupled to the second radiating portion via the first conductive through-element.