CN102800931A - Mobile communication terminal antenna device - Google Patents

Mobile communication terminal antenna device Download PDF

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Publication number
CN102800931A
CN102800931A CN2012103013023A CN201210301302A CN102800931A CN 102800931 A CN102800931 A CN 102800931A CN 2012103013023 A CN2012103013023 A CN 2012103013023A CN 201210301302 A CN201210301302 A CN 201210301302A CN 102800931 A CN102800931 A CN 102800931A
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CN
China
Prior art keywords
antenna
metal frame
communication terminal
mobile communication
radiator
Prior art date
Application number
CN2012103013023A
Other languages
Chinese (zh)
Inventor
赵宁
刘永山
冯斌
唐海军
罗益州
顾亮
李彦涛
Original Assignee
广东欧珀移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 广东欧珀移动通信有限公司 filed Critical 广东欧珀移动通信有限公司
Priority to CN2012103013023A priority Critical patent/CN102800931A/en
Publication of CN102800931A publication Critical patent/CN102800931A/en

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242Supports; 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
    • H01Q1/243Supports; 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
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30Arrangements for providing operation on different wavebands
    • H01Q5/378Combination of fed elements with parasitic elements
    • H01Q5/385Two or more parasitic elements
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04Resonant antennas
    • H01Q9/30Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/42Resonant 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

Abstract

The invention discloses a mobile terminal antenna device which comprises a metal frame arranged on a mobile communication terminal shell, a first radiating body and a second radiating body arranged on an antenna carrier and a main circuit board arranged in a mobile communication terminal, wherein a main earth point on the main circuit board is connected with the metal frame; the first radiating body is provided with a coupling gap and is connected with a radio-frequency feed source on the main circuit board via a conducting connector, and an earth point on the first radiating body is connected with the metal frame via a conducting connector; and the second radiating body as a double-grounded parasitic antenna branch of the antenna device is used for expanding low-frequency bandwidth. The mobile terminal antenna device is a coupled feed-in type monopole antenna device. Compared with the prior art, the mobile terminal antenna device has the advantages of ultralow low-frequency bandwidth, good antenna performance, high efficiency and the like, the problem that a large metal part of the mobile communication terminal and the antenna coexist is also well solved, and the metal texture of the appearance of the mobile communication terminal is better ensured on the shape.

Description

一种移动通信终端天线装置 A communication terminal device moves the antenna

技术领域 FIELD

[0001] 本发明涉及一种移动通信终端天线装置,具体涉及一种应用于手机的耦合馈入式的单极天线装置。 [0001] The present invention relates to an antenna device of a mobile communication terminal, particularly to a coupled-fed monopole antenna device for mobile phones.

背景技术 Background technique

[0002] 随着无线通讯技术的发展,对无线通讯设备的要求也越来越高,作为电磁波接收与发送的天线也有了多种结构以适应通讯设备的要求,天线的性能或结构也因此有了更大的挑战。 [0002] With the development of wireless communication technology, demand for wireless communication devices have become more sophisticated, transmitted as an electromagnetic wave receiving antenna has also been a variety of configurations to meet the requirements of the communications equipment, or the structure of the antenna performance has therefore the greater challenge. 无线通讯技术的蓬勃发展,使得移动终端系统上搭载的信息子模块也越来越多,如当前智能手机的系统普遍搭载多种子通信模块,这些子通信模块的增加必然会导致天线频带的扩充和天线结构复杂程度的增加。 The vigorous development of wireless communication technology, making the information sub-module installed in a mobile terminal system more and more, such as the current smart phone generally equipped with multi-seed system communication module, which is bound to increase the lead to expansion of the sub communication module and antenna band increase the complexity of the antenna structure. 同时,智能手机等手持终端设备向着薄型化和强金属质感化的方向发展,而薄型化和强金属质感的手持终端设备无疑给天线的设计带来了巨大的挑战。 Meanwhile, smart phones and other handheld devices toward thin and strong metal-oriented direction, while the thin and strong metallic handheld device antenna design will undoubtedly bring great challenges.

[0003] 当前的移动通信终端内置天线普遍采用平面倒F天线(PIFA)和单极天线(Monopole Antenna)。 [0003] The current built-in antenna of a mobile communication terminal generally planar inverted F antenna (PIFA) and the monopole antenna (Monopole Antenna). 平面倒F天线由于对面积和高度的要求较高,严重限制了整机的布局以及轻薄化,同时由于多天线布局所限,而且平面倒F天线受其辐射机理所限,导致其性能较差,因而没有被大量采用。 Planar inverted F antenna because of the high demand for the area and height, severely limits the machine layout and the light and thin, and because multiple antenna placement constraints, and F antenna radiating mechanism by its planar inverted limited, resulting in poor performance , which has not been widely adopted. 而就单极天线而言,临近区域大金属件的存在对其天线性能有着致命的影响。 And monopole antenna, the presence of large metal parts of the adjacent area has a fatal effect on the antenna performance. 因此,现有的移动通信终端内置天线有待改进。 Thus, the conventional built-in antenna of a mobile communication terminal needs to be improved.

发明内容 SUMMARY

[0004] 为克服现有技术的不足及存在的问题,本发明提供一种移动通信终端天线装置,该天线装置为耦合馈入式的单极天线形式,具有低频频带宽很宽、天线性能好等优点,同时也很好地解决了天线与大金属件共存的问题。 [0004] In order to overcome the shortcomings and problems of the prior art, the present invention provides a mobile communication terminal antenna apparatus, the antenna device coupled-fed in the form of a monopole antenna, a low frequency wide bandwidth, good antenna performance etc., but also solves the problem of the coexistence of the large antenna and the metal member.

[0005] 本发明是通过以下技术方案实现的:一种移动通信终端天线装置,包括设于移动通信终端壳体上的金属边框、天线载体,设于移动通信终端内的电路主板,所述电路主板上设置有该天线装置的射频馈源,天线载体上设置有该天线装置的第一辐射体与第二辐射体,其中,所述的第一辐射体设置有馈电点与接地点,所述的馈电点通过导电连接器与射频馈源连接,所述的接地点通过导电连接器与金属边框连接,用于形成一单极天线;所述的第二辐射体的两端各设置有一接地点,一接地点通过导电连接器与电路主板上的地连接,另一接地点通过导电连接器与金属边框连接,用于形成所述天线装置的双接地寄生天线分支;所述的金属边框与电路主板上的主地连接,金属边框上设置有一个或一个以上的缝隙,在靠近第二辐射体的金属边框的侧边处至少设置 [0005] The present invention is achieved by the following technical solution: a mobile communication terminal antenna apparatus, comprising a metal frame provided on a mobile communication terminal housing, the antenna carrier, the main circuit board provided within the mobile communication terminal, said circuit means provided on the motherboard of the RF antenna feed, the antenna carrier is provided with a first radiator and a second radiator of the antenna apparatus, wherein said first radiator is provided with a feeding point and the ground, the said feeding point by a conductive connector and the RF feed connector, the ground point is connected by a conductive connection with the metal frame, for forming a monopole antenna; each of both ends of the second set has a radiator ground point, to a grounding point on the conductive connector to the main circuit board are connected by the other ground point via the conductive connector is connected to the metal frame, for forming a double ground parasitic antenna branches of the antenna device; said metal frame connected to the main ground on the main circuit board, is provided with one or more slits on a metal frame, is provided at least at the side of the metal frame near the second radiator 有一个缝隙。 There is a gap.

[0006] 进一步地,所述的第一辐射体上设有用于使射频馈源的馈入方式由直接馈入变为耦合馈入的耦合缝隙;该耦合缝隙设置于第一辐射体上的接地点与馈电点之间,且该耦合缝隙靠近接地点的一端。 [0006] Further, provided for the RF feed is fed directly by way of the feeding aperture-coupled feed become coupled on said first radiator; then the coupling slot is provided on the first radiator between the point and the feed point, and the coupling slot near an end of the ground point.

[0007] 进一步地,所述的第二辐射体整体呈长方形,设置于靠近第一辐射体上馈电点的一侧的天线载体上。 [0007] Further, the second radiator has a rectangular shape overall, disposed on the side near the antenna feed point support on the first radiator. [0008] 较佳地,所述的金属边框设置于移动通信终端显示屏所在的正面,该金属边框包括设于移动通信终端正面的上金属装饰件、下金属装饰件以及左金属框条、右金属框条;左金属框条、右金属框条均与电路主板上的主地连接,所述的上金属装饰件、右金属框条、下金属装饰件依次连接,所述的缝隙设置在靠近第二辐射体的左金属框条与下金属装饰件之间。 [0008] Preferably, the metal frame is provided on the front screen of the mobile communication terminal is located, the metal frame comprising a metal provided on a front garnish mobile communication terminal, and a left lower metal trim strip metal frame, the right Article metal frame; left metal frame section, the right section are connected to the main metal frame on the main circuit board, said metal trim, a right bar metal frame, the metal garnish sequentially connected, is provided near the slit the second radiator is left between metal frame and the metal strip under the garnish.

[0009] 本发明与现有技术相比,具有低频带宽超宽、天线性能好、效率高等优点,同时也很好地解决了移动通信终端的大金属件与天线共存的问题,在造型上更好地保证了移动通信终端外观的金属质感。 [0009] Compared with the prior art, having a wide frequency bandwidth, good antenna performance, high efficiency, but also solves the problem of the large metal member and the antenna coexisting mobile communication terminal, and more in shape ensure the good metallic appearance of the mobile communication terminal.

附图说明 BRIEF DESCRIPTION

[0010] 图I是本发明实施例中金属边框在手机壳体上的结构示意图; [0010] FIG. I is a schematic structural diagram of the metal frame on the phone housing embodiment of the present invention;

图2是本发明实施例中天线装置设置于手机背面的结构示意图; FIG 2 is a schematic view of an antenna device is disposed in back of the phone of the embodiment of the present invention;

图3是本发明实施例去掉手机壳体时的天线装置的立体结构示意图。 3 is a perspective schematic view of the structure of an antenna device according to remove the mobile phone when the housing of the embodiment of the present invention.

[0011] 图中:1-金属边框、10-出声孔、101-上金属装饰件、102-下金属装饰件、103-右金属框条、104-左金属框条、105-缝隙,201-第一福射体、202-第二福射体、201-1-稱合缝隙,301、302、303、304-导电连接器,4-电路主板、401-射频馈源,5-天线载体,6-显示屏。 [0011] FIG: 1- metal frame, 10 ventilation holes, the trim 101 of metal, metal trim the 102-, 103- and right metal frame strip, strip metal frame 104- left, 105- slit, 201 - a first projectile fu, fu 202- second projectile, said engagement slot 201-1-, 301,302,303,304- conductive connector, 4- main circuit board, RF feed 401, 5- antenna carrier , 6 display.

具体实施方式 Detailed ways

[0012] 为了便于本领域技术人员的理解,以下结合附图,以应用于手机的天线装置为具体实施例对本发明作进一步描述。 [0012] In order to facilitate understanding of the skilled in the art, in conjunction with the following drawings, in antenna device used in mobile phones is a specific embodiment of the present invention will be further described.

[0013] 如附图I、图2以及图3所示,一种手机天线装置,包括设于手机壳体上的金属边框I、天线载体5,设于手机内的电路主板4,所述电路主板4上设置有该天线装置的射频馈源401,天线载体5上设置有该天线装置的第一辐射体201与第二辐射体202,其中,所述的第一辐射体201设置有馈电点与接地点,所述的馈电点通过导电连接器与射频馈源401连接,所述的接地点通过导电连接器与金属边框I连接,用于形成一单极天线;所述的第二辐射体202的两端各设置有一接地点,一接地点通过导电连接器与电路主板4上的地连接,另一接地点通过导电连接器与金属边框I连接,用于形成所述天线装置的双接地寄生天线分支;所述的金属边框I与电路主板4上的主地连接,金属边框I上至少设置有一个缝隙105,该缝隙105设置的位置与第二辐射体202有关,缝隙105设置于靠近第二辐 [0013] The figures I, as shown in FIG. 2 and FIG. 3 A cell phone antenna device, comprising a metal frame is provided on the phone housing I, antenna carrier 5, provided on the main circuit board 4, the circuitry within the phone Board is provided with a radio frequency feed of the antenna device 401, a first radiator of the antenna device 201 and the second radiator 202 of the antenna 5 on the carrier 4, wherein said first radiator 201 is provided with a feed point and the ground point, the feeding point 401 is connected by a conductive RF feed connector and the ground point via the conductive connector is connected to the metal frame I for forming a monopole antenna; said second the radiator ends 202 are each provided with a ground point, a ground point through a conductive ground connector on the main circuit board 4, another ground point via the conductive connection with the metal frame I connected to the antenna means for forming double ground parasitic antenna branch; I and the metal frame on the main circuit board 4 is connected to the master, at least one slit 105 is provided on a metal frame I, the position of the slit 105 is provided with a second radiator 202 about the slit 105 is provided second web to close 体202的金属边框I的侧边边框上。 202 on the side of the metal frame of the I frame. 当然,也可以根据需要在金属边框I的其他位置上设置其他缝隙,这里不再举例详述。 Of course, other slits may be provided at other positions on the metal frame I needed, for example not described in detail here.

[0014] 所述的第一辐射体201上设有用于使射频馈源401的馈入方式由直接馈入变为耦合馈入的耦合缝隙201-1 ;该耦合缝隙201-1设置于第一辐射体201上的接地点与馈电点之间,且该耦合缝隙201-1靠近接地点的一端。 [0014] provided on said first radiator 201 for RF feed 401 by way of feed fed directly into the coupling slot 201-1 becomes coupled fed; 201-1 disposed on the first coupling slot between the ground point and the feed point on the radiator 201, and the coupling slot near one end of the ground point 201-1. 所述的第二辐射体202整体呈长方形,设置于靠近第一辐射体201上馈电点的一侧的天线载体5上。 Said second integral rectangular radiator 202, the antenna on the side of the carrier 5 is provided near the feeding point of the first radiator 201.

[0015] 如附图I所示,所述的金属边框I设置于手机显示屏6所在的手机正面,该金属边框I包括手机正面的上金属装饰件101、下金属装饰件102以及左金属框条103、右金属框条104 ;所述上金属装饰件101、右金属框条104、下金属装饰件102依次连接,金属边框I上设置有缝隙105,该缝隙105设置的位置与设置于天线载体5上的第二辐射体202的位置有关,它设置在靠近第二辐射体202的左金属框条103与下金属装饰件102之间。 [0015] As shown in FIG. I, the metal frame is provided on the front of the phone I phone display 6 is located, which comprises a metal frame I on the front of the phone decorative metal member 101, the metal 102 and the left metal frame garnish strip 103, strip 104 and right metal frame; said metal trim 101, a right metal frame strip 104, a lower metal garnish 102 are sequentially connected, it is provided with a slot 105 on the metal frame I, the position of the slit provided in the antenna 105 is provided the position of the second radiator 202 on the support about 5, which is provided between the left near the metal frame 202 of the second radiator 103 and the metal 102 at the garnish. 左金属框条103、右金属框条104均与电路主板4上的主地连接,接地的数量与位置可根据具体的需要来调整。 Left metal frame bar 103, a right metal frame 104 are connected to the main section on the main circuit board 4, the number and location of the ground can be adjusted according to specific needs. 此外,上金属装饰件101中间设置有一手机扬声器的出声孔10。 Further, the decorative metal intermediate member 101 is provided with a sound hole 10 of the speaker phone. 金属边框I可以通过结构卡扣、镶嵌等方式安装于手机的塑胶壳体上,成为手机的外观面,在造型上更好地保证手机外观的金属质感。 I metal frame structure may be mounted by a snap, etc. embedded in the plastic housing of the mobile phone as the mobile phone of the design surface, in the shape better ensure phone metallic appearance.

[0016] 如附图2所示,手机壳体背面设置有塑胶材料的天线载体5,天线载体5设置于手机壳体的下端,其垂直投影与金属边框I的下金属装饰件102处于手机壳体的同一端。 [0016] As shown in the drawings, the phone 2 is provided with an antenna housing back surface of the carrier 5, the carrier plastics material antenna 5 disposed at the lower end of the phone housing, and a metal frame that the vertical projection of the lower metal I garnish 102 is a mobile phone shell same end of the body. 第一辐射体201、第二辐射体202设置于天线载体5上。 The first radiator 201, a second radiator 202 disposed on an antenna carrier 5. 从手机壳体背面的角度来看,第一辐射体201位于天线载体5的左侧,第二辐射体202位于天线载体5的右侧。 From the perspective view of the back of the phone housing, a first radiator 201 on the left side of the antenna carrier 5, located on the right side of the second radiator 202 of the antenna carrier 5. 其中,第一辐射体201上设置有耦合缝隙201-1,该耦合缝隙201-1设置于导电连接器303的附近。 Wherein a coupling slot 201-1 on a first radiator 201, which is provided in the vicinity of the coupling slot 201-1 conductive connector 303. 第一辐射体201、第二辐射体202可通过FPC、金属片材料或者LDS等工艺安装于天线载体5上。 The first radiator 201, a second radiator 202 may be an FPC, sheet metal material, or other processes LDS antenna mounted on the carrier 5 by.

[0017] 如附图3所示,电路主板4设于第一辐射体201与下金属装饰件102之间,第一辐射体201、电路主板4以及下金属装饰件102三者形成“三明治”结构,第一辐射体201、第二辐射体202处于同一平面上。 [0017] As shown in Figure 3, the main circuit board 4 is provided between the first radiator 201 102, a first radiator 201, main circuit board 4 and the lower metal garnish 102 is formed at the three metal trim and "sandwich" structure, a first radiator 201, a second radiator 202 on the same plane. 第一辐射体201的接地点位于靠近手机壳体边缘的第一辐射体201的一端上,该接地点通过导电连接器303与金属边框I的下金属装饰件102连接;第一辐射体201的馈电点位于靠近第二辐射体202的第一辐射体201上,该馈电点通过导电连接器301与电路主板4上的射频馈源401连接。 Ground point of the first radiator 201 is located on one end of the first radiator housing edge close to the phone 201, the ground point via a conductive connector 303 and the metal frame of the metal I garnish 102 is connected; a first radiator 201 feed point is located near the second radiator 202. the first radiator 201, the feeding point is connected via a radio frequency feed on the main circuit board 301 and the conductive connector 401 4. 第一辐射体201上的耦合缝隙201-1设置于接地点与馈电点之间且靠近接地点的位置上。 A first coupling slot on the radiator 201201-1 disposed between the ground point and the feed point and a position close to the ground point. 第二辐射体202位于第一辐射体201的馈电点的一侧,其整体呈长方形。 The second radiator 202 on one side of the feed point of the first radiator 201, the entire rectangular. 第二辐射体202两端各设置有一接地点,靠近第一辐射体201的馈电点的接地点通过导电连接器302与电路主板4的地连接,另一接地点通过导电连接器304与金属边框I的下金属装饰件102连接,其中,导电连接器301、302、303、304的形状和位置均可以根据实际需要进行调整。 Each of the two ends of the second radiator 202 is provided with a ground point, the first radiator 201 near the feed point ground point via a conductive connector 302 is connected to circuit ground of the main board 4, another ground point via a conductive connector 304 and the metal I lower metal frame garnish 102 is connected, wherein the shape and location of the connectors 301, 302 can be adjusted according to actual needs.

[0018] 本手机天线装置的主要谐振机理为:(I)由导电连接器301、第一辐射体201、导电连接器303、下金属装饰件102依次连接,主板4上的射频馈源401通过导电连接器301馈入,形成一Monopole (单极)的I禹合馈入天线。 [0018] The main mechanism of the present mobile phone antenna resonance apparatus is: (I) by a conductive connector 301, a first radiator 201, the conductive connection 303, the decorative metal piece 102 are sequentially connected, the RF feed on the motherboard 4401 by feeding the conductive connector 301, forming a monopole (monopoles) and Yu I-feed antenna. 由此天线的谐振原理可知:该天线四分之一波长谐振于手机的900MHz频段,同时该天线的二分之一波长谐振于手机的DCS (数字蜂窝系统,1710 MHz-1880MHz)频段,PCS (个人通信服务)部分频段;第一辐射体201上设置的耦合缝隙201-1,使射频馈源401从直接馈入的方式变为耦合馈入,从而改变了天线回路上的电流分布,当用户手握紧金属边框I上的缝隙105时,天线的性能不会因此而收到影响,同时也很好地解决了手机天线与大金属件共存的问题。 Whereby the antenna resonant principle understood: the quarter wave resonator antenna Mobile phone 900MHz band, while the one-half wavelength antenna is resonated in the DCS mobile phones (Digital Cellular System, 1710 MHz-1880MHz) frequency band, the PCS ( personal communication services) band portion; coupling slot provided on the first radiator 201 201-1 401 become coupled so that the RF feed fed directly from feed manner, thereby changing the current distribution of the antenna loop, when the user when the hand grip slot 105 on the I metal frame, the performance of the antenna will not be received impact, but also a good solution to the problem of co-existence of mobile phone antenna and large metal parts. (2)由导电连接器302、第二辐射体202、导电连接器304以及下金属装饰件102依次连接,形成该天线装置的双接地寄生天线分支,主要产生850MHz频段,PCS、UMTS (通用移动通信系统)部分高频频段的谐振。 (2), the second radiator 202, a conductive metal connector 304 and a lower garnish 102 in turn is connected by a conductive connector 302, to form a double ground parasitic antenna branches of the antenna device, mainly generated 850MHz band, PCS, UMTS (Universal Mobile communication system) frequency band resonant portion. 本手机天线采用Monopole天线形式,具有具有低频带宽超宽(其低频带宽可达700MHZ-1000MHZ)、天线性能好、效率高等优点,保证了手机优异的无线通信性能。 Monopole antenna phone antenna takes the form of having a wide frequency bandwidth having a (low frequency bandwidth of 700MHZ-1000MHZ), good antenna performance, high efficiency, ensures excellent performance of mobile wireless communication.

[0019] 上述实施例为本发明较佳的实现方式,并非是对本发明的限定,在不脱离本发明构思的前提下,任何显而易见的替换均在本发明的保护范围之内。 [0019] The preferred embodiment of the present invention, implementation, not limiting the present invention, without departing from the inventive concept premise, any replacement are apparent within the scope of the present invention.

Claims (7)

1. 一种移动通信终端天线装置,包括设于移动通信终端壳体上的金属边框(I)、天线载体(5),设于移动通信终端内的电路主板(4),所述电路主板上设置有该天线装置的射频馈源(401),天线载体上设置有该天线装置的第一辐射体(201)与第二辐射体(202),其特征在于: 所述的第一辐射体(201)设置有馈电点与接地点,馈电点通过导电连接器(301)与射频馈源(401)连接,接地点通过导电连接器(303)与金属边框连接,用于形成一单极天线; 所述的第二辐射体(202)的两端各设置有一接地点,一接地点通过导电连接器(302)与电路主板(4)上的地连接,另一接地点通过导电连接器(304)与金属边框连接,用于形成所述天线装置的双接地寄生天线分支; 所述的金属边框(I)与电路主板上的主地连接,金属边框上设置有一个或一个以上的缝隙,在靠近第二辐射体 A mobile communication terminal antenna apparatus, comprising a metal frame provided in (I) on a mobile communication terminal housing, the antenna support (5), provided on the main circuit board (4) within the mobile communication terminal, on the main circuit board It is provided with a radio frequency feed (401) of the antenna device is provided with a first radiator of the antenna device (201) and a second radiator (202) on the antenna carrier, characterized in that: said first radiator ( 201) is provided with a feeding point and the ground point, the feed points connected by a conductive connector (301) with a radio frequency feed (401), the ground point is connected to the metal frame by an electrically conductive connector (303) for forming a monopolar an antenna; each of said second ends disposed radiator (202) has a ground point, a ground (302) and the ground on the main circuit board (4) connected by a conductive connector, the other ground point via a conductive connector (304) connected to the metal frame, for forming a double ground parasitic antenna branches of the antenna device; said metal frame (I) is connected to the main ground on the main circuit board, is provided with one or more slits on a metal frame , adjacent to the second radiator 金属边框的侧边处至少设置有一个缝隙(105)。 At the sides of the metal frame is provided with at least one slit (105).
2.根据权利要求I所述的移动通信终端天线装置,其特征在于:所述的第一辐射体(201)上设有用于使射频馈源(401)的馈入方式由直接馈入变为耦合馈入的耦合缝隙(201-1)。 The mobile communication terminal of the antenna apparatus as claimed in claim I, wherein: said radiator is provided with a first upper (201) for RF feed (401) is fed directly by way of feeding becomes coupling the coupling slot fed (201-1).
3.根据权利要求2所述的移动通信终端天线装置,其特征在于:所述的耦合缝隙(201-1)设置于第一辐射体(201)上的接地点与馈电点之间,且该耦合缝隙靠近接地点的一端。 The mobile communication terminal antenna device according to claim 2, wherein: said coupling slot (201-1) disposed between the ground point and the feed point on the first radiator (201), and the coupling slot near an end of the location.
4.根据权利要求3所述的移动通信终端天线装置,其特征在于:所述的第二辐射体(202)整体呈长方形,设置于靠近第一辐射体上馈电点的一侧的天线载体(5)上。 4. The mobile communication terminal of the antenna device of claim 3, wherein: said second radiator (202) has a rectangular shape overall, disposed on a side close to the feed point of the antenna radiator on a first carrier (5).
5.根据权利要求1-4任一项所述的移动通信终端天线装置,其特征在于:所述的金属边框(I)设置于移动通信终端显示屏(6)所在的正面,该金属边框包括设于移动通信终端正面的上金属装饰件(101)、下金属装饰件(102)以及左金属框条(103)、右金属框条(104)。 The mobile communication terminal of the antenna device according to any one of claims 1 to 4, wherein: the metal frame (I) provided in the mobile communication terminal display (6) located in front, the metal frame comprising provided in front of the mobile communication terminal on the metallic trim (101), a lower metal garnish (102) and a left bar metal frame (103), a right bar metal frame (104).
6.根据权利要求5所述的移动通信终端天线装置,其特征在于:所述的上金属装饰件(101)、右金属框条(104)、下金属装饰件(102)依次连接,所述的缝隙(105)设置在靠近第二辐射体(202)的左金属框条(103)与下金属装饰件之间(102)。 The mobile communication terminal of the antenna apparatus as claimed in claim 5, wherein: said metal trim (101), a right bar metal frame (104), a lower metal garnish (102) are sequentially connected, the slot (105) is disposed between the left close to the second radiator (202) of the metal frame section (103) and a metal lower trim (102).
7.根据权利要求6所述的移动通信终端天线装置,其特征在于:所述的左金属框条(103)、右金属框条(104)均与电路主板(4)上的主地连接。 The mobile communication terminal antenna device according to claim 6, wherein: the left bar metal frame (103), a right metal frame bars (104) are connected with the main circuit board on the primary ground (4).
CN2012103013023A 2012-08-23 2012-08-23 Mobile communication terminal antenna device CN102800931A (en)

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