TW201436358A - Communication device - Google Patents

Communication device Download PDF

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Publication number
TW201436358A
TW201436358A TW102108180A TW102108180A TW201436358A TW 201436358 A TW201436358 A TW 201436358A TW 102108180 A TW102108180 A TW 102108180A TW 102108180 A TW102108180 A TW 102108180A TW 201436358 A TW201436358 A TW 201436358A
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TW
Taiwan
Prior art keywords
antenna element
switch
communication device
antenna
frequency band
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TW102108180A
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Chinese (zh)
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TWI511371B (en
Inventor
Kin-Lu Wong
meng-ting Chen
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Acer Inc
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Publication date
Application filed by Acer Inc filed Critical Acer Inc
Priority to TW102108180A priority Critical patent/TWI511371B/en
Priority to EP13168114.0A priority patent/EP2775562B1/en
Publication of TW201436358A publication Critical patent/TW201436358A/en
Application granted granted Critical
Publication of TWI511371B publication Critical patent/TWI511371B/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/06—Details
    • H01Q9/14—Length of element or elements adjustable
    • H01Q9/145—Length of element or elements adjustable by varying the electrical length
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/42—Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Support Of Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Details Of Aerials (AREA)
  • Transceivers (AREA)

Abstract

A communication device including a ground element and an antenna element is provided. The antenna element is disposed adjacent to the ground element and does not overlap with the ground element. The antenna element includes a first portion and a second portion. The first portion has a first end and a second end. The first end is a first feeding point of the antenna element. The second portion has a third end and a fourth end. The third end is a second feeding point of the antenna element, and the fourth end is open. A first switch is coupled between the second end of the first portion and the third end of the second portion. The first switch is further coupled through the first portion and a first reactive circuit to a communication module. A second switch is coupled to the third end of the second portion. The second switch is further coupled through a second reactive circuit to the communication module.

Description

通訊裝置 Communication device

本發明係關於一種通訊裝置，特別是一種包括可重組式雙饋入接地面天線元件(Reconfigurable Dual-feed Ground Plane Antenna Element)之通訊裝置。 The present invention relates to a communication device, and more particularly to a communication device including a Reconfigurable Dual-feed Ground Plane Antenna Element.

近年來隨著無線通訊產業之蓬勃發展，為了滿足使用者多元化之需求，行動通訊裝置的功能也日趨進步。一般而言，行動通訊裝置必須在符合薄形化的趨勢下，同時加入相關之零組件。因此，如何在行動通訊裝置之有限空間內設計出具備更多功能之天線元件，並使得此天線元件能夠達到實際使用之效能，是天線設計者之一項重要挑戰。 In recent years, with the rapid development of the wireless communication industry, in order to meet the diversified needs of users, the functions of mobile communication devices are also improving. In general, mobile communication devices must incorporate relevant components while complying with the trend of thinning. Therefore, how to design an antenna component with more functions in the limited space of the mobile communication device and make the antenna component achieve the performance of practical use is an important challenge for the antenna designer.

有鑑於此，須要設計一種包括小尺寸天線之行動通訊裝置，以解決天線元件之可設計空間日漸縮減之難題。 In view of this, it is necessary to design a mobile communication device including a small-sized antenna to solve the problem that the design space of the antenna element is gradually reduced.

本發明的目的在於提供一種通訊裝置及其可重組式雙饋入接地面天線元件(Reconfigurable Dual-feed Ground Plane Antenna Element)。該接地面天線元件主要包括一天線元件及該通訊裝置內之一接地元件。該天線元件包括一第一部分及一第二部分。該第一部分與該第二部分之間設置有一切換開關，以使該天線元件可取得不同電流共振路徑之組合。該切換 開關更可用於控制該天線元件之複數個不同共振模態之激發，進而達成該天線元件之多頻操作。該第一部分與該第二部分之總長度可以小於該天線元件之最低操作頻率之0.15倍波長。換言之，本發明之該天線元件之總長度將遠小於一般天線元件所需之最低操作頻率之0.25倍波長，因此具有小尺寸的優點。 It is an object of the present invention to provide a communication device and a Reconfigurable Dual-feed Ground Plane Antenna Element. The ground plane antenna component mainly includes an antenna component and a ground component in the communication device. The antenna element includes a first portion and a second portion. A switch is disposed between the first portion and the second portion to enable the antenna element to achieve a combination of different current resonance paths. The switch The switch can be used to control the excitation of a plurality of different resonant modes of the antenna element to achieve multi-frequency operation of the antenna element. The total length of the first portion and the second portion may be less than 0.15 times the wavelength of the lowest operating frequency of the antenna element. In other words, the overall length of the antenna element of the present invention will be much less than 0.25 times the wavelength of the minimum operating frequency required for a typical antenna element, and thus has the advantage of being small in size.

在較佳實施例中，本發明提供一種通訊裝置，包括：一接地元件；以及一天線元件，鄰近於該接地元件，並與該接地元件不互相重疊，其中該天線元件包括：一第一部分，具有一第一端及一第二端，其中該第一端為該天線元件之一第一饋入點；以及一第二部分，具有一第三端及一第四端，其中該第三端為該天線元件之一第二饋入點，而該第四端為一開口端；其中，一第一切換開關係耦接於該第一部分之該第二端與該第二部分之該第三端之間，該第一切換開關更經由該第一部分和一第一電抗電路耦接至一通訊模組，一第二切換開關係耦接至該第二部分之該第三端，而該第二切換開關更經由一第二電抗電路耦接至該通訊模組。 In a preferred embodiment, the present invention provides a communication device comprising: a grounding element; and an antenna element adjacent to and not overlapping the grounding element, wherein the antenna element comprises: a first portion, Having a first end and a second end, wherein the first end is a first feed point of the antenna element; and a second end has a third end and a fourth end, wherein the third end a second feed point of the antenna element, wherein the fourth end is an open end; wherein a first switch-on relationship is coupled to the second end of the first portion and the third end of the second portion The first switch is coupled to the communication module via the first portion and a first reactance circuit, and the second switch-on relationship is coupled to the third end of the second portion, and the first switch The switch is further coupled to the communication module via a second reactance circuit.

在一些實施例中，該天線元件大致沿著該接地元件之一第一邊緣延伸，或是大致沿著該接地元件之二相鄰邊緣延伸。在一些實施例中，該天線元件係鄰近於該接地元件之一角落處。該第二部分大致沿著該接地元件之一第一邊緣延伸，該第一部分大致沿著該接地元件之一第二邊緣延伸，而該第一邊緣係鄰近且垂直於該第二邊緣。 In some embodiments, the antenna element extends substantially along a first edge of the ground element or substantially along two adjacent edges of the ground element. In some embodiments, the antenna element is adjacent to a corner of the ground element. The second portion extends generally along a first edge of the grounding member, the first portion extending generally along a second edge of the grounding member, the first edge being adjacent and perpendicular to the second edge.

在一些實施例中，當該第一切換開關閉路 (closed，導通)且該第二切換開關開路(open，不導通)時，該天線元件係經由該第一饋入點接收饋入能量，並操作於一第一頻帶。在一些實施例中，當該第二切換開關閉路且該第一切換開關開路時，該天線元件係經由該第二饋入點接收饋入能量，並操作於一第二頻帶。在一些實施例中，該第一頻帶約介於704MHz至960MHz之間，而該第二頻帶約介於1710MHz至2690MHz之間。 In some embodiments, when the first switch is turned off (closed, conducting) and when the second switch is open (non-conducting), the antenna element receives the feed energy via the first feed point and operates in a first frequency band. In some embodiments, when the second switch is turned off and the first switch is open, the antenna element receives the feed energy via the second feed point and operates in a second frequency band. In some embodiments, the first frequency band is between about 704 MHz and 960 MHz, and the second frequency band is between about 1710 MHz and 2690 MHz.

在一些實施例中，該天線元件之該第一部分大致為一L字形或一直條形。在一些實施例中，該天線元件之該第二部分大致為一L字形或一直條形。 In some embodiments, the first portion of the antenna element is substantially an L-shaped or straight strip. In some embodiments, the second portion of the antenna element is substantially an L-shaped or straight strip.

在本發明中，該天線元件與該接地元件形成不對稱之一偶極天線(Dipole Antenna)結構，而藉由控制該等切換開關可以選擇性地耦接該天線元件之不同饋入點至一訊號源。該天線元件可以使用該第一部分加上該第二部分之組合，或是僅使用該第二部分，以得到不同之電流共振路徑。該天線元件更可控制其複數個不同共振模態之激發。更詳細地說，該天線元件可用下列方式操作於多重頻帶。當該第一切換開關閉路且該第二切換開關開路時，該天線元件係使用該第一部分加上該第二部分之組合來產生共振。另外，藉由該第一電抗電路提供一第一阻抗值，該天線元件可以共振於該第一頻帶。該第一部分與該第二部分之總長度係小於該第一頻帶之最低頻率之0.15倍波長。此時，該天線元件可產生一共振模態，以涵蓋該天線元件之低頻操作。當該第二切換開關閉路且該第一切換開關開路時，該天線元件僅使用該第二部分來產生共振。另外，藉由 該第二電抗電路提供一第二阻抗值，該天線元件可以共振於該第二頻帶。該第二部分之長度係小於該第二頻帶之最低頻率之0.15倍波長。此時，該天線元件可產生另一共振模態，以該涵蓋天線元件之高頻操作。 In the present invention, the antenna element and the ground element form a dipole antenna structure, and the different feeding points of the antenna element can be selectively coupled to one by controlling the switching switches. Signal source. The antenna element can use a combination of the first portion plus the second portion, or only the second portion, to obtain a different current resonant path. The antenna element is more capable of controlling the excitation of its plurality of different resonant modes. In more detail, the antenna element can operate in multiple frequency bands in the following manner. When the first switch is turned off and the second switch is open, the antenna element uses the combination of the first portion and the second portion to generate resonance. In addition, the first reactance circuit provides a first impedance value, and the antenna element can resonate in the first frequency band. The total length of the first portion and the second portion is less than 0.15 times the wavelength of the lowest frequency of the first frequency band. At this point, the antenna element can generate a resonant mode to cover the low frequency operation of the antenna element. When the second switch is turned off and the first switch is open, the antenna element uses only the second portion to generate resonance. In addition, by The second reactance circuit provides a second impedance value, and the antenna element can resonate in the second frequency band. The length of the second portion is less than 0.15 times the wavelength of the lowest frequency of the second frequency band. At this point, the antenna element can generate another resonant mode to accommodate the high frequency operation of the antenna element.

在一些實施例中，該天線元件大致為一平面結構，其總面積僅約為10×30 mm2。在一些實施例中，該天線元件可切換操作於LTE700/GSM850/900之一低頻頻帶以及GSM1800/1900/UMTS/LTE2300/2500之一高頻頻帶。換言之，該天線元件可以涵蓋約介於704MHz至960 MHz之間之該第一頻帶，並涵蓋約介於1710MHz至2690 MHz之間之該第二頻帶，以達成LTE/WWAN之多重頻帶操作。 In some embodiments, the antenna element is generally a planar structure having a total area of only about 10 x 30 mm 2 . In some embodiments, the antenna element is switchable to operate in one of the low frequency bands of LTE 700/GSM 850/900 and one of the high frequency bands of GSM 1800/1900/UMTS/LTE 2300/2500. In other words, the antenna element can cover the first frequency band between approximately 704 MHz and 960 MHz and cover the second frequency band between approximately 1710 MHz and 2690 MHz to achieve multiple band operation of the LTE/WWAN.

100、600、700‧‧‧通訊裝置 100, 600, 700‧‧‧ communication devices

10‧‧‧接地元件 10‧‧‧ Grounding components

101‧‧‧接地元件之第一邊緣 101‧‧‧The first edge of the grounding element

102‧‧‧接地元件之第二邊緣 102‧‧‧The second edge of the grounding element

11、61、71‧‧‧天線元件 11, 61, 71‧‧‧ antenna elements

12、62、72‧‧‧天線元件之第一部分 12, 62, 72‧‧‧ the first part of the antenna element

13、63、73‧‧‧天線元件之第二部分 13, 63, 73‧‧‧ the second part of the antenna element

121、621、721‧‧‧第一部分之第一端(第一饋入點) 121, 621, 721‧‧‧ the first end of the first part (first feed point)

122、622、722‧‧‧第一部分之第二端 122, 622, 722‧‧‧ the second end of the first part

131、631、731‧‧‧第二部分之第三端(第二饋入點) 131, 631, 731‧‧ The third end of the second part (second feed point)

132、632、732‧‧‧第二部分之第四端 132, 632, 732‧‧ The fourth end of the second part

14、64、74‧‧‧第一切換開關 14, 64, 74‧‧‧ first switch

15、65、75‧‧‧第二切換開關 15, 65, 75‧‧‧ second switch

16、66、76‧‧‧第一電抗電路 16, 66, 76‧‧‧ first reactance circuit

17、67、77‧‧‧第二電抗電路 17, 67, 77‧‧‧second reactance circuit

18‧‧‧通訊模組 18‧‧‧Communication module

21‧‧‧第一頻帶 21‧‧‧First frequency band

31‧‧‧第二頻帶 31‧‧‧second frequency band

41、51‧‧‧天線效率曲線 41, 51‧‧‧ antenna efficiency curve

第1圖係顯示根據本發明第一實施例所述之通訊裝置之示意圖；第2圖係顯示根據本發明第一實施例所述之天線元件由第一饋入點饋入能量時之返回損失圖；第3圖係顯示根據本發明第一實施例所述之天線元件由第二饋入點饋入能量時之返回損失圖；第4圖係顯示根據本發明第一實施例所述之天線元件由第一饋入點饋入能量時之天線效率圖；第5圖係顯示根據本發明第一實施例所述之天線元件由第二饋入點饋入能量時之天線效率圖；第6圖係顯示根據本發明第二實施例所述之通訊裝置之示 意圖；第7圖係顯示根據本發明第三實施例所述之通訊裝置之示意圖。 1 is a schematic view showing a communication device according to a first embodiment of the present invention; and FIG. 2 is a view showing a return loss when an antenna element according to a first embodiment of the present invention feeds energy from a first feed point; Figure 3 is a diagram showing the return loss when the antenna element is fed with energy from the second feed point according to the first embodiment of the present invention; and Fig. 4 is a view showing the antenna according to the first embodiment of the present invention. An antenna efficiency diagram when the component is fed with energy by the first feed point; FIG. 5 is a diagram showing the antenna efficiency of the antenna element according to the first embodiment of the present invention when the energy is fed by the second feed point; The figure shows the display of the communication device according to the second embodiment of the present invention. Intent; Figure 7 is a schematic diagram showing a communication device according to a third embodiment of the present invention.

為讓本發明之上述目的、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。 The above described objects, features and advantages of the present invention will become more apparent from the description of the appended claims.

第1圖係顯示根據本發明第一實施例所述之通訊裝置100之示意圖。通訊裝置100可以是一智慧型手機(Smart phone)、一平板電腦(Tablet Computer)，或是一筆記型電腦(Notebook Computer)。如第1圖所示，通訊裝置100至少包括一接地元件10及一天線元件11。天線元件11大致沿著接地元件10之一第一邊緣101延伸。接地元件10可以是一金屬平面，並鋪設於一介質基板上(未顯示)，例如：一FR4基板或是一系統電路板。天線元件11係鄰近於接地元件10，並與接地元件10不互相重疊。天線元件11包括一第一部分12及一第二部分13。在本實施例中，第一部分12大致為一L字形，而第二部分13大致為一直條形。本發明並不限於此，在其他實施例中，第一部分12和第二部分13之任一者可以大致為一直條形、一L字形、一J字形、一U字形、一W字形，或是一S字形等等。第一部分12具有一第一端121及一第二端122，其中第一端121為天線元件11之一第一饋入點。第二部分13具有一第三端131及一第四端132，其中第三端131為天線元件11之一第二饋入點，而第四端132為一開口端。第一切換開關14係耦接於第一部分12之第二 端122與第二部分13之第三端131之間。第一切換開關14更經由第一部分12和一第一電抗電路16耦接至一通訊模組18。一第二切換開關15亦耦接至第二部分13之第三端131。第二切換開關15更經由一第二電抗電路17耦接至通訊模組18。第一電抗電路16提供一第一阻抗值，而第二電抗電路17提供一第二阻抗值，其中該第一阻抗值可異於該第二阻抗值。在一些實施例中，第一電抗電路16和第二電抗電路17各自包括一或複數個電感器和電容器，例如：晶片電感器和晶片電容器。通訊模組18可視為天線元件11之一訊號源。藉由控制第一切換開關14和第二切換開關15，天線元件11係選擇性地使用該第一饋入點或是該第二饋入點接收來自該訊號源之饋入能量，以操作於不同頻帶。第一切換開關14和第二切換開關15之種類在本發明中並不作限制。例如：第一切換開關14和第二切換開關15可各自用一PIN型二極體(PIN diode)實施之。在一些實施例中，通訊裝置100更包括一控制單元(未顯示)，該控制單元可根據一使用者輸入信號或是一偵測信號，選擇性地導通或不導通第一切換開關14和第二切換開關15之任一者。在一些實施例中，通訊裝置100更包括一感測器(未顯示)，該感測器可以偵測附近之一電磁信號之頻率，並據以產生該偵測信號。必須注意的是，通訊裝置100更可包括其他元件，例如：一觸控面板、一處理器、一揚聲器、一電池，以及一外殼(未顯示)。 1 is a schematic view showing a communication device 100 according to a first embodiment of the present invention. The communication device 100 can be a smart phone, a tablet computer, or a notebook computer. As shown in FIG. 1, the communication device 100 includes at least one grounding element 10 and an antenna element 11. The antenna element 11 extends generally along a first edge 101 of the ground element 10. The grounding element 10 can be a metal plane and laid on a dielectric substrate (not shown), such as an FR4 substrate or a system board. The antenna elements 11 are adjacent to the ground elements 10 and do not overlap each other with the ground elements 10. The antenna element 11 includes a first portion 12 and a second portion 13. In the present embodiment, the first portion 12 is substantially an L-shape and the second portion 13 is substantially a straight strip. The present invention is not limited thereto. In other embodiments, either of the first portion 12 and the second portion 13 may be substantially a straight strip, an L-shape, a J-shape, a U-shape, a W-shape, or A S shape and so on. The first portion 12 has a first end 121 and a second end 122, wherein the first end 121 is a first feed point of the antenna element 11. The second portion 13 has a third end 131 and a fourth end 132. The third end 131 is a second feed point of the antenna element 11 and the fourth end 132 is an open end. The first switch 14 is coupled to the second portion of the first portion 12 The end 122 is between the third end 131 of the second portion 13. The first switch 14 is coupled to a communication module 18 via the first portion 12 and a first reactance circuit 16 . A second switch 15 is also coupled to the third end 131 of the second portion 13. The second switch 15 is further coupled to the communication module 18 via a second reactance circuit 17 . The first reactance circuit 16 provides a first impedance value, and the second reactance circuit 17 provides a second impedance value, wherein the first impedance value can be different from the second impedance value. In some embodiments, the first reactance circuit 16 and the second reactance circuit 17 each include one or more inductors and capacitors, such as a wafer inductor and a wafer capacitor. The communication module 18 can be regarded as a signal source of the antenna element 11. By controlling the first changeover switch 14 and the second changeover switch 15, the antenna element 11 selectively receives the feed energy from the signal source using the first feed point or the second feed point to operate Different frequency bands. The types of the first changeover switch 14 and the second changeover switch 15 are not limited in the present invention. For example, the first changeover switch 14 and the second changeover switch 15 can each be implemented by a PIN type PIN diode. In some embodiments, the communication device 100 further includes a control unit (not shown), and the control unit can selectively turn on or off the first switch 14 and the first according to a user input signal or a detection signal. Any one of the two switch switches 15. In some embodiments, the communication device 100 further includes a sensor (not shown) that can detect the frequency of one of the nearby electromagnetic signals and generate the detection signal accordingly. It should be noted that the communication device 100 may further include other components, such as a touch panel, a processor, a speaker, a battery, and a casing (not shown).

第2圖係顯示根據本發明第一實施例所述之天線元件11由該第一饋入點(第一部分12之第一端121)饋入能量時之返回損失(Return Loss)圖。在本實施例中，接地元件10之總 面積約為100×150 mm2，為一典型平板電腦之接地元件尺寸，而天線元件11之總面積僅約為10×30 mm2。當第一切換開關14閉路且第二切換開關15開路時，天線元件11係使用第一部分12加上第二部分13之組合來產生共振，以形成一第一頻帶21。在較佳實施例中，第一頻帶21可涵蓋LTE700/GSM850/900頻帶(約介於704MHz至960 MHz之間)。在本實施例中，第一部分12與第二部分13之總長度係小於第一頻帶21之最低頻率之0.15倍波長。 2 is a diagram showing a return loss (Return Loss) when the antenna element 11 according to the first embodiment of the present invention feeds energy from the first feed point (the first end 121 of the first portion 12). In the present embodiment, the total area of the grounding element 10 is about 100 x 150 mm 2 , which is the grounding element size of a typical tablet computer, and the total area of the antenna element 11 is only about 10 x 30 mm 2 . When the first changeover switch 14 is closed and the second changeover switch 15 is open, the antenna element 11 uses a combination of the first portion 12 plus the second portion 13 to resonate to form a first frequency band 21. In a preferred embodiment, the first frequency band 21 can encompass the LTE 700/GSM 850/900 frequency band (approximately between 704 MHz and 960 MHz). In the present embodiment, the total length of the first portion 12 and the second portion 13 is less than 0.15 times the wavelength of the lowest frequency of the first frequency band 21.

第3圖係顯示根據本發明第一實施例所述之天線元件11由該第二饋入點(第二部分13之第三端131)饋入能量時之返回損失圖。當第二切換開關15閉路且第一切換開關14開路時，天線元件11僅使用第二部分13來產生共振，以形成一第二頻帶31，其中第二頻帶31可涵蓋GSM1800/1900/UMTS/LTE2300/2500頻帶(約介於1710MHz至2690 MHz之間)。在本實施例中，第二部分13之長度係小於第二頻帶31之最低頻率之0.15倍波長。 Figure 3 is a graph showing the return loss when the antenna element 11 according to the first embodiment of the present invention feeds energy from the second feed point (the third end 131 of the second portion 13). When the second changeover switch 15 is closed and the first changeover switch 14 is open, the antenna element 11 uses only the second portion 13 to generate resonance to form a second frequency band 31, wherein the second frequency band 31 can cover GSM1800/1900/UMTS/ LTE 2300/2500 band (approximately between 1710MHz and 2690 MHz). In the present embodiment, the length of the second portion 13 is less than 0.15 times the wavelength of the lowest frequency of the second frequency band 31.

第4圖係顯示根據本發明第一實施例所述之天線元件11由該第一饋入點饋入能量時之天線效率(Antenna Efficiency)圖。在本實施例中，第一切換開關14閉路，而第二切換開關15開路。如第4圖所示，天線效率曲線41代表天線元件11操作於LTE700/GSM850/900頻帶時之天線效率。由此結果可知，天線元件11操作於LTE700/GSM850/900各頻帶時皆有不錯的天線效率(已將S參數納入考量之輻射效率)，符合實際應用的需求。 Fig. 4 is a diagram showing an antenna efficiency when the antenna element 11 according to the first embodiment of the present invention feeds energy from the first feed point. In the present embodiment, the first changeover switch 14 is closed and the second changeover switch 15 is open. As shown in FIG. 4, the antenna efficiency curve 41 represents the antenna efficiency when the antenna element 11 operates in the LTE 700/GSM 850/900 band. As a result, it can be seen that the antenna element 11 has good antenna efficiency when operating in each frequency band of the LTE700/GSM850/900 (the S-parameter has been considered to have the radiation efficiency), which meets the requirements of practical applications.

第5圖係顯示根據本發明第一實施例所述之天線元件11由該第二饋入點饋入能量時之天線效率圖。在本實施例中，第二切換開關15閉路，而第一切換開關14開路。如第5圖所示，天線效率曲線51代表天線元件11操作於GSM1800/1900/UMTS/LTE2300/2500頻帶時之天線效率。由此結果可知，天線元件11操作於GSM1800/1900/UMTS/LTE2300/2500各頻帶時皆有不錯的天線效率(已將S參數納入考量之輻射效率)，符合實際應用的需求。 Fig. 5 is a view showing an antenna efficiency diagram of the antenna element 11 according to the first embodiment of the present invention when energy is fed from the second feed point. In this embodiment, the second changeover switch 15 is closed, and the first changeover switch 14 is open. As shown in Fig. 5, the antenna efficiency curve 51 represents the antenna efficiency when the antenna element 11 operates in the GSM1800/1900/UMTS/LTE 2300/2500 band. From this result, it can be seen that the antenna element 11 has good antenna efficiency when operating in each frequency band of GSM1800/1900/UMTS/LTE2300/2500 (the S parameter has been taken into consideration of the radiation efficiency), which meets the requirements of practical applications.

第6圖係顯示根據本發明第二實施例所述之通訊裝置600之示意圖。在第二實施例中，一天線元件61可以鄰近於接地元件10之一角落處，並大致沿著接地元件10之二相鄰邊緣延伸，以節省通訊裝置600之內部設計空間。在第二實施例中，天線元件61之一第一部分62大致為一L字形，而天線元件61之一第二部分63亦大致為一L字形。第二實施例之其餘特徵皆與第一實施例相似，故此二實施例均可達成相似之操作效果。 Figure 6 is a diagram showing a communication device 600 according to a second embodiment of the present invention. In the second embodiment, an antenna element 61 may be adjacent to a corner of the ground element 10 and extend substantially along two adjacent edges of the ground element 10 to save internal design space of the communication device 600. In the second embodiment, the first portion 62 of one of the antenna elements 61 is substantially L-shaped, and the second portion 63 of one of the antenna elements 61 is also substantially L-shaped. The remaining features of the second embodiment are similar to those of the first embodiment, so that the two embodiments can achieve similar operational effects.

第7圖係顯示根據本發明第三實施例所述之通訊裝置700之示意圖。在第三實施例中，一天線元件71係鄰近於接地元件10之一角落處。天線元件71之一第二部分73大致沿著接地元件10之一第一邊緣101延伸，而天線元件71之一第一部分72大致沿著接地元件10之一第二邊緣102延伸，以節省通訊裝置700之內部設計空間，其中第一邊緣101係鄰近且垂直於第二邊緣102。在第三實施例中，天線元件71之第一部分72大致為一直條形，而天線元件71之第二部分73亦大致為一直條形。 第三實施例之其餘特徵皆與第一實施例相似，故此二實施例均可達成相似之操作效果。 Figure 7 is a diagram showing a communication device 700 according to a third embodiment of the present invention. In the third embodiment, an antenna element 71 is adjacent to a corner of the ground element 10. A second portion 73 of one of the antenna elements 71 extends substantially along a first edge 101 of the ground element 10, and a first portion 72 of the antenna element 71 extends substantially along a second edge 102 of the ground element 10 to save communication The interior design space of 700, wherein the first edge 101 is adjacent and perpendicular to the second edge 102. In the third embodiment, the first portion 72 of the antenna element 71 is substantially straight and the second portion 73 of the antenna element 71 is also substantially straight. The remaining features of the third embodiment are similar to those of the first embodiment, so that the second embodiment can achieve similar operational effects.

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。 It is to be noted that the above-described component sizes, component shapes, and frequency ranges are not limitations of the present invention. The antenna designer can adjust these settings according to different needs.

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 indicate that two are identical. Different components 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。 The present invention has been described above with reference to the preferred embodiments thereof, and is not intended to limit the scope of the present invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

100‧‧‧通訊裝置 100‧‧‧Communication device

10‧‧‧接地元件 10‧‧‧ Grounding components

101‧‧‧接地元件之第一邊緣 101‧‧‧The first edge of the grounding element

11‧‧‧天線元件 11‧‧‧Antenna components

12‧‧‧天線元件之第一部分 12‧‧‧The first part of the antenna element

13‧‧‧天線元件之第二部分 13‧‧‧Part II of the antenna element

121‧‧‧第一部分之第一端(第一饋入點) 121‧‧‧ First end of the first part (first feed point)

122‧‧‧第一部分之第二端 122‧‧‧ second end of the first part

131‧‧‧第二部分之第三端(第二饋入點) 131‧‧‧ third end of the second part (second feed point)

132‧‧‧第二部分之第四端 132‧‧‧ fourth end of the second part

14‧‧‧第一切換開關 14‧‧‧First switch

15‧‧‧第二切換開關 15‧‧‧Second switch

16‧‧‧第一電抗電路 16‧‧‧First reactance circuit

17‧‧‧第二電抗電路 17‧‧‧Second reactance circuit

18‧‧‧通訊模組 18‧‧‧Communication module

Claims (10)

一種通訊裝置，包括：一接地元件；以及一天線元件，鄰近於該接地元件，並與該接地元件不互相重疊，其中該天線元件包括：一第一部分，具有一第一端及一第二端，其中該第一端為該天線元件之一第一饋入點；以及一第二部分，具有一第三端及一第四端，其中該第三端為該天線元件之一第二饋入點，而該第四端為一開口端；其中，一第一切換開關係耦接於該第一部分之該第二端與該第二部分之該第三端之間，該第一切換開關更經由該第一部分和一第一電抗電路耦接至一通訊模組，一第二切換開關係耦接至該第二部分之該第三端，而該第二切換開關更經由一第二電抗電路耦接至該通訊模組。 A communication device comprising: a grounding element; and an antenna element adjacent to the grounding component and not overlapping the grounding component, wherein the antenna component comprises: a first portion having a first end and a second end The first end is a first feed point of the antenna element; and the second end has a third end and a fourth end, wherein the third end is a second feed of the antenna element And the fourth end is an open end; wherein a first switch-on relationship is coupled between the second end of the first portion and the third end of the second portion, the first switch is further The first switch and the first reactance circuit are coupled to the communication module, the second switch-on relationship is coupled to the third end of the second portion, and the second switch is further connected to the second reactance circuit. Coupled to the communication module. 如申請專利範圍第1項所述之通訊裝置，其中該天線元件大致沿著該接地元件之一第一邊緣延伸，或是大致沿著該接地元件之二相鄰邊緣延伸。 The communication device of claim 1, wherein the antenna element extends substantially along a first edge of the ground element or extends substantially along two adjacent edges of the ground element. 如申請專利範圍第1項所述之通訊裝置，其中該天線元件係鄰近於該接地元件之一角落處，該第二部分大致沿著該接地元件之一第一邊緣延伸，該第一部分大致沿著該接地元件之一第二邊緣延伸，而該第一邊緣係鄰近且垂直於該第二邊緣。 The communication device of claim 1, wherein the antenna element is adjacent to a corner of the ground element, the second portion extends substantially along a first edge of the ground element, the first portion being substantially along A second edge of one of the grounding elements extends and the first edge is adjacent and perpendicular to the second edge. 如申請專利範圍第1項所述之通訊裝置，其中當該第一切換開關閉路(closed)且該第二切換開關開路(open)時，該天線 元件係經由該第一饋入點接收饋入能量，並操作於一第一頻帶。 The communication device of claim 1, wherein the antenna is closed when the first switch is closed and the second switch is open. The component receives the feed energy via the first feed point and operates in a first frequency band. 如申請專利範圍第4項所述之通訊裝置，其中當該第二切換開關閉路且該第一切換開關開路時，該天線元件係經由該第二饋入點接收饋入能量，並操作於一第二頻帶。 The communication device of claim 4, wherein when the second switching is off and the first switching switch is open, the antenna element receives the feeding energy via the second feeding point, and operates on A second frequency band. 如申請專利範圍第5項所述之通訊裝置，其中該第一頻帶約介於704MHz至960MHz之間，而該第二頻帶約介於1710MHz至2690MHz之間。 The communication device of claim 5, wherein the first frequency band is between about 704 MHz and 960 MHz, and the second frequency band is between about 1710 MHz and 2690 MHz. 如申請專利範圍第4項所述之通訊裝置，其中該第一電抗電路提供一第一阻抗值，使得該天線元件共振於該第一頻帶，而該第一部分與該第二部分之總長度係小於該第一頻帶之最低頻率之0.15倍波長。 The communication device of claim 4, wherein the first reactance circuit provides a first impedance value such that the antenna element resonates in the first frequency band, and the total length of the first portion and the second portion is Less than 0.15 times the wavelength of the lowest frequency of the first frequency band. 如申請專利範圍第5項所述之通訊裝置，其中該第二電抗電路提供一第二阻抗值，使得該第二部分共振於該第二頻帶，而該第二部分之長度係小於該第二頻帶之最低頻率之0.15倍波長。 The communication device of claim 5, wherein the second reactance circuit provides a second impedance value such that the second portion resonates in the second frequency band, and the second portion has a length less than the second 0.15 times the wavelength of the lowest frequency of the band. 如申請專利範圍第1項所述之通訊裝置，其中該第一部分大致為一L字形或一直條形。 The communication device of claim 1, wherein the first portion is substantially an L-shaped or a straight strip. 如申請專利範圍第1項所述之通訊裝置，其中該第二部分大致為一L字形或一直條形。 The communication device of claim 1, wherein the second portion is substantially an L-shaped or a straight strip.
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