WO2017107289A1 - 一种移动通讯终端及其天线装置 - Google Patents

一种移动通讯终端及其天线装置 Download PDF

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Publication number
WO2017107289A1
WO2017107289A1 PCT/CN2016/072800 CN2016072800W WO2017107289A1 WO 2017107289 A1 WO2017107289 A1 WO 2017107289A1 CN 2016072800 W CN2016072800 W CN 2016072800W WO 2017107289 A1 WO2017107289 A1 WO 2017107289A1
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Prior art keywords
antenna
metal
mobile communication
communication terminal
antenna device
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PCT/CN2016/072800
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English (en)
French (fr)
Inventor
韩崇志
罗振宇
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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Priority to US16/062,411 priority Critical patent/US11349194B2/en
Publication of WO2017107289A1 publication Critical patent/WO2017107289A1/zh
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
    • 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
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • 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
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0421—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with a shorting wall or a shorting pin at one end of the element

Definitions

  • the present invention relates to the field of mobile communication devices, and more particularly to an antenna device for a break-free metal middle frame and an all-metal back cover mobile communication terminal, and to a mobile communication terminal.
  • metal-like mobile communication terminals As users' requirements for the appearance of mobile communication terminals continue to increase, more and more metal-like mobile communication terminals appear on the market, but most of the metal communication frames of mobile communication terminals have plastic partition points, and only a very small number of mobile communication The metal middle frame of the terminal is closed loop without breakpoint.
  • the existing non-breakpoint mid-frame mobile communication terminals on the market are all ring or slot antennas, and most of them cannot support the metal back cover due to the limitation of the device structure.
  • Most of the mobile communication terminal devices use the slot antenna to realize signal radiation. That is, the gap is opened in the frame of the metal.
  • this technical solution has certain defects: the structure itself is subject to its relatively complicated feed structure design, and the antenna resonance frequency is adjusted by changing the metal frame gap. Flexible and the radiation performance of this antenna is relatively weak; in addition, the design of the slot around the middle frame of the frame will have a significant weakening effect on the structural strength of the whole machine.
  • the antenna design in the above-mentioned comparative patents has the requirements of high performance requirements and simple design of the antenna that cannot effectively support the future mobile communication terminal, and how to be flexible in the closed-loop non-breakpoint metal middle frame + full metal back cover mobile communication terminal.
  • Implement antenna design and tuning for future mobility The need for appearance and antenna performance of the communication terminal is a problem to be solved by the present invention.
  • the first object of the present invention is to provide an antenna device for a break-free metal middle frame and an all-metal back cover mobile communication terminal, and the antenna device is structurally designed to effectively solve the external structure of the mobile communication terminal.
  • the second object of the present invention is to provide a mobile communication terminal including the above antenna device.
  • the present invention provides the following technical solutions:
  • An antenna device for a non-breakpoint metal middle frame and an all-metal back cover mobile communication terminal includes an antenna body whose end is in contact with a circuit board, the antenna body is connected to a metal middle frame, and the antenna device further includes The trap structure of the circuit board is connected.
  • the trap structure includes a first trap structure, and the first trap structure is specifically an umbrella metal piece, and the umbrella metal piece is fixed by a metal post at the bottom thereof.
  • the circuit board is in contact with the connection.
  • the trap structure further includes a second trap structure, and the second trap structure is specifically a T-type metal unit, and the T-type metal unit is in contact with the circuit board.
  • a contact position of the T-shaped metal unit and the circuit board is an end position of the antenna body.
  • the antenna main body and the metal middle frame are in contact connection with a side adjacent to the display screen of the mobile communication terminal.
  • each component in the antenna device is a passive device.
  • the feeding point structure of the antenna device includes a bent metal strip, and the bent metal strip is connected to the circuit board through a feeding line.
  • the antenna provided by the invention for a break-free metal middle frame and an all-metal back cover mobile communication terminal comprises an antenna body whose end is in contact with the circuit board, the antenna body is connected to the metal middle frame, and the antenna device further comprises a notch structure connected to the circuit board.
  • the technical solution of the antenna body connected to the metal middle frame provided by the invention is equivalent to the antenna main body portion including the metal middle frame, and one end of the antenna main body is connected to one end of the circuit board, and the circuit main board is a reference ground in the device, which is equivalent here.
  • the antenna is connected to the ground to form a PIFA antenna. This design reduces the sensitivity of the antenna to the ground, so that the antenna can better resonate.
  • connection circuit board which is equivalent to the grounded trap structure, is further provided.
  • the circuit on the antenna body is directly coupled into the floor, which is equivalent to cutting off the antenna body at the corresponding position.
  • This technique is used to stabilize the resonant frequency of the antenna in a suitable frequency band. The radiation intensity of the device antenna and the practicality of the tuning are effectively ensured.
  • the present invention further provides a mobile communication terminal comprising any of the above antenna devices, the mobile communication terminal comprising a metal frame without a break and an all-metal back cover. Since the antenna device described above has the above technical effects, the mobile communication terminal having the antenna device should also have corresponding technical effects.
  • FIG. 1 is a schematic structural diagram of an antenna apparatus for a break-free metal middle frame and an all-metal back cover mobile communication terminal according to an embodiment of the present invention.
  • Metal middle frame 1 circuit main board 2, umbrella metal piece 3-1, metal cylinder 3-2, T-shaped metal unit 4, bent metal strip 5.
  • the embodiment of the invention discloses an antenna device for a metal frame without a breakpoint and a mobile communication terminal with an all-metal back cover, which is ensured under the premise that the mobile communication terminal satisfies the all-metal middle frame and the full metal back cover in the external structure.
  • Technical issues such as the radiation intensity of the equipment antenna and the practicality of tuning.
  • FIG. 1 is a schematic structural diagram of an antenna device for a break-free metal middle frame and an all-metal back cover mobile communication terminal according to an embodiment of the present invention.
  • the antenna device for a non-breakpoint metal middle frame and an all-metal back cover mobile communication terminal includes an antenna body whose end is in contact with the circuit main board 2, and the antenna main body is connected to the metal middle frame 1, the antenna The device also includes a notch structure coupled to the circuit board 2.
  • the metal middle frame refers to the outer edge of the side of the mobile communication terminal such as a mobile phone, which is called the middle frame, and the metal middle frame refers to the material of all the metal materials; the same all-metal back cover refers to The entire back cover of a mobile communication terminal such as a mobile phone is made of a metal material.
  • the technical solution of the antenna body connected to the metal middle frame provided by the invention is equivalent to the antenna main body portion including the metal middle frame, and one end of the antenna main body is connected to one end of the circuit board, and the circuit main board is a reference ground in the device, which is equivalent here.
  • the antenna is connected to the ground to form a PIFA antenna. This design reduces the antenna's sensitivity to ground so that the antenna can resonate better.
  • the principle of the trap structure is to form a resonance using a special metal structure.
  • a special metal structure When such a structure is connected to the floor, that is, the circuit board in the present invention, the energy in the corresponding frequency band is introduced into the trap structure due to the resonance structure, and then introduced into the earth, and is not radiated into the air, so that the pair can be realized.
  • the suppression of radiation in certain frequency bands, according to the conservation of energy, is inevitably enhanced by radiation in other frequency bands.
  • connection circuit main board which is equivalent to a grounded trap structure, is provided, and the circuit on the antenna main body is directly coupled into the floor through the coupling action, which is equivalent to cutting off the antenna main body at the corresponding position.
  • the notch structure comprises a first trap structure, and the first trap structure is specifically an umbrella metal sheet 3- 1.
  • the umbrella-shaped metal piece 3-1 is in contact with the circuit board 2 via a metal post 3-2 fixed at its bottom.
  • the resonance caused by this structure can effectively suppress the antenna radiation in the low frequency band, which is equivalent to enhance the antenna radiation in the high frequency band and improve the radiation bandwidth in the high frequency band.
  • This design fully satisfies the frequency band requirement of LTE communication and further optimizes The frequency band characteristics of the antenna device enhance its practicability.
  • the notch structure further includes a second trap structure, and the second trap structure is specifically a T-type metal unit 4
  • the T-shaped metal unit 4 is in contact with the circuit board 2, and the contact position of the T-metal unit 4 with the circuit board 2 is the end position of the antenna body.
  • the T-type metal unit is directly connected to the circuit board, and the circuit on the antenna main body can be directly coupled into the floor through coupling, so that the antenna main body is cut off here, and the electromagnetic wave is blocked.
  • the travel path on the metal frame 1 shortens the length of the sky, and by this design, it is not necessary to provide a break point cut-off middle frame on the metal middle frame 1, which can ensure the appearance of the device and reduce the antenna.
  • the electrical length of the antenna makes the resonant frequency of the antenna at a high frequency band, which enhances the practical effect of the antenna device.
  • the antenna main body and the side of the metal middle frame 1 adjacent to the display screen of the mobile communication terminal are in contact connection.
  • the portion of the metal middle frame adjacent to the side of the display screen is used as a part of the antenna main body, and the structure of the metal middle frame is fully utilized.
  • each component in the antenna device is a passive device.
  • the introduction of active devices does not increase the design difficulty of the internal circuits of mobile communication terminals.
  • the feeding point structure of the antenna device includes a bent metal strip 5, and the bent metal strip 5 passes through the feeding line and the The circuit board 2 is connected.
  • the antenna device provided by the invention is an easy-to-implement LTE broadband antenna which can be used for a passive system of a metal frame without a break and a metal back cover antenna, avoiding seaming in a metal frame and greatly enhancing the movement.
  • the structural strength of the terminal also increases the overall aesthetics of the mobile communication terminal; the passive multi-frequency point design can be realized by passive means, which provides the basis for the full-band communication of the mobile communication terminal; can be other antennas in the mobile communication terminal Provides a perfect headroom environment; reduces hand and head loss, and balances losses in the left and right hands.
  • the present invention further provides a mobile communication terminal, which includes a metal middle frame and an all-metal back cover without a breakpoint, and the mobile communication terminal includes any one of the above embodiments.
  • a mobile communication terminal which includes a metal middle frame and an all-metal back cover without a breakpoint
  • the mobile communication terminal includes any one of the above embodiments.
  • Antenna device Since the mobile communication terminal adopts the antenna device in the above embodiment, the beneficial effects of the mobile communication terminal can be referred to the above embodiment.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Support Of Aerials (AREA)
  • Telephone Set Structure (AREA)
  • Details Of Aerials (AREA)

Abstract

一种用于无断点金属中框和全金属背盖移动通讯终端的天线装置，包括端部与电路主板接触连接的天线主体，天线主体连接金属中框，天线装置还包括与电路主板连接的陷波结构。这种技术方案相当于天线主体部分包括金属中框，天线主体一端与电路主板一端连接，相当于天线与地相连，减小了天线对地的敏感度，以便天线更好的进行谐振；进一步设置了连接电路主板也就是相当于接地的陷波结构，通过其耦合作用将天线主体上的电路直接耦合流进地板，相当于在对应位置截断了天线主体，采用这种技术使天线的谐振频率稳定在适合的频段内。有效地保证了设备天线的辐射强度和调谐的实用性。本发明还提供了一种包括上述天线装置的移动通讯终端。

Description

一种移动通讯终端及其天线装置
本申请要求于2015年12月25日提交中国专利局、申请号为201510995373.1、发明名称为“一种移动通讯终端及其天线装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及移动通讯设备技术领域，更具体地说，涉及一种用于无断点金属中框和全金属背盖移动通讯终端的天线装置，还涉及一种移动通讯终端。
背景技术
随着用户对移动通讯终端外观的要求不断提高，越来越多金属外观的移动通讯终端出现在市场上，但绝大数移动通讯终端的金属中框都有塑胶隔断点，只有极少数移动通讯终端的金属中框是闭环无断点的。
市面上现存的无断点中框移动通讯终端上的都是环形或缝隙天线，并且大多由于设备结构所限无法支持金属背盖，这类移动通讯终端设备大多利用缝隙天线的简单实现信号辐射，即在金属中框周圈开缝隙，然而这种技术方案本身存在一定缺陷：结构本身受制于其比较复杂的馈电结构设计，通过改变金属中框缝隙调整天线谐振频率，这种方式本身调整不灵活而且这种天线的辐射性能相对较弱；此外，中框周圈开缝隙的设计对整机结构强度也会产生比较明显的弱化影响。
虽然有少数设计能够满足移动通讯终端设置金属背盖的要求，但是为了使天线的信号达到一定的强度，依然需要在背盖开缝。这就影响了设备整体的美观，并且这种天线设计会使天线信号受环境影响比较大，具体的如使用者肢体接触造成的信号损耗(手损、头损)。
上述对比专利里的天线设计都存在着无法有效地支持未来移动通讯终端的天线高性能需求以及设计简易实现的要求，如何在闭环无断点金属中框+全金属背盖的移动通讯终端中灵活实现天线设计和调谐，满足未来移动 通讯终端对于外观和天线性能的需求是本发明所要解决的问题。
综上所述，如何有效地解决移动通讯终端在外结构方面满足全金属中框和全金属背盖的前提下，保证设备天线的辐射强度和调谐的实用性等技术问题，是目前本领域技术人员急需解决的问题。
发明内容
有鉴于此，本发明的第一个目的在于提供一种用于无断点金属中框和全金属背盖移动通讯终端的天线装置，该天线装置的结构设计可以有效地解决移动通讯终端在外结构方面满足全金属中框和全金属背盖的前提下，保证设备天线的辐射强度和调谐的实用性等技术问题，本发明的第二个目的是提供一种包括上述天线装置的移动通讯终端。
为了达到上述第一个目的，本发明提供如下技术方案：
一种用于无断点金属中框和全金属背盖移动通讯终端的天线装置，包括端部与电路主板接触连接的天线主体，所述天线主体连接金属中框，所述天线装置还包括与所述电路主板连接的陷波结构。
优选的，在上述天线装置中，所述陷波结构包括第一陷波结构，所述第一陷波结构具体为伞状金属片，所述伞状金属片通过其底部固定的金属柱体与所述电路主板接触连接。
优选的，在上述天线装置中，所述陷波结构还包括第二陷波结构，所述第二陷波结构具体为T型金属单元，所述T型金属单元与所述电路主板接触连接，所述T型金属单元与所述电路主板的接触位置为所述天线主体的末端位置。
优选的，在上述天线装置中，所述天线主体与所述金属中框与移动通讯终端显示屏相邻的一侧接触连接。
优选的，在上述天线装置中，所述天线装置内各部件均为无源器件。
优选的，在上述天线装置中，所述天线装置的馈电点结构包括弯折金属条，所述弯折金属条通过馈线与所述电路主板连接。
本发明提供的用于无断点金属中框和全金属背盖移动通讯终端的天线 装置，包括端部与电路主板接触连接的天线主体，所述天线主体连接金属中框，所述天线装置还包括与所述电路主板连接的陷波结构。采用本发明提供的这种天线主体连接金属中框的技术方案，相当于天线主体部分包括金属中框，天线主体一端与电路主板一端连接，而电路主板为设备中的参考地，此处相当于天线与地相连，构成PIFA天线，这种设计减小了天线对地的敏感度，以便天线更好的进行谐振；并在此基础上进一步设置了连接电路主板也就是相当于接地的陷波结构，通过其耦合作用将天线主体上的电路直接耦合流进地板，相当于在对应位置截断了天线主体，采用这种技术使天线的谐振频率稳定在适合的频段内。有效地保证了设备天线的辐射强度和调谐的实用性。
为了达到上述第二个目的，本发明还提供了一种移动通讯终端，该移动通讯终端包括上述任一种天线装置，该移动通讯终端包括无断点的金属中框和全金属背盖。由于上述的天线装置具有上述技术效果，具有该天线装置的移动通讯终端也应具有相应的技术效果。
附图说明
了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例提供的用于无断点金属中框和全金属背盖移动通讯终端的天线装置的结构示意图。
附图中标记如下：
金属中框1、电路主板2、伞状金属片3-1、金属柱体3-2、T型金属单元4、弯折金属条5。
具体实施方式
本发明实施例公开了一种用于无断点金属中框和全金属背盖移动通讯终端的天线装置，以移动通讯终端在外结构方面满足全金属中框和全金属背盖的前提下，保证设备天线的辐射强度和调谐的实用性等技术问题。
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请参阅图1，图1为本发明实施例提供的用于无断点金属中框和全金属背盖移动通讯终端的天线装置的结构示意图。
本发明提供的用于无断点金属中框和全金属背盖移动通讯终端的天线装置，包括端部与电路主板2接触连接的天线主体，所述天线主体连接金属中框1，所述天线装置还包括与所述电路主板2连接的陷波结构。
其中需要说明的是，金属中框指的是移动通讯终端如手机等的侧面一周的外边缘称之为中框，金属中框是指其材质为全部金属材料；同理全金属背盖指的是移动通讯终端如手机等的整个后盖都是由金属材质制成。
采用本发明提供的这种天线主体连接金属中框的技术方案，相当于天线主体部分包括金属中框，天线主体一端与电路主板一端连接，而电路主板为设备中的参考地，此处相当于天线与地相连，构成PIFA天线，这种设计减小了天线对地的敏感度，以便天线更好的进行谐振。
其中陷波结构的原理是利用特殊的金属结构形式形成谐振。当这种结构体与地板即本发明中的电路主板相连时，所对应频带内的能量在因为谐振结构的原因被引入陷波结构中，然后又导入大地，没有辐射到空中，这样可以实现对某些频带的辐射的抑制，根据能量守恒可知，必然有其他频带的辐射得到加强。
并在此基础上进一步设置了连接电路主板也就是相当于接地的陷波结构，通过其耦合作用将天线主体上的电路直接耦合流进地板，相当于在对应位置截断了天线主体，采用这种技术使天线的谐振频率稳定在适合的频 段内。有效地保证了设备天线的辐射强度和调谐的实用性。
为进一步优化上述技术方案，在上述实施例的基础上优选的，在上述天线装置中，所述陷波结构包括第一陷波结构，所述第一陷波结构具体为伞状金属片3-1，所述伞状金属片3-1通过其底部固定的金属柱体3-2与所述电路主板2接触连接。
通过这种结构引起的谐振可以有效抑制低频段的天线辐射，也就等效增强了高频段的天线辐射，提高了高频段的辐射带宽，这种设计充分满足了LTE通信的频段要求，进一步优化了天线装置的频段特性增强了其实用性。
为进一步优化上述技术方案，在上述实施例的基础上优选的，在上述天线装置中，所述陷波结构还包括第二陷波结构，所述第二陷波结构具体为T型金属单元4，所述T型金属单元4与所述电路主板2接触连接，所述T型金属单元4与所述电路主板2的接触位置为所述天线主体的末端位置。
采用本实施例提供的技术方案，通过T型金属单元直接与电路主板相连，通过耦合能够将天线主体上的电路直接耦合进地板，这样就相当于天线主体在此处被截断，阻断了电磁波在金属中框1上的行驶路径，这样就缩短了天下的长度，并且通过这种设计不需要在金属中框1上设置断点截断中框，既能够保证设备的外观，又能够减小天线的电长度使天线的谐振频率在高频段，增强了天线装置的实用效果。
为进一步优化上述技术方案，在上述实施例的基础上优选的，在上述天线装置中，所述天线主体与所述金属中框1与移动通讯终端显示屏相邻的一侧接触连接。此处是将金属中框与显示屏一侧相邻的部分作为天线主体的一部分，充分利用了金属中框的结构。
为进一步优化上述技术方案，在上述实施例的基础上优选的，在上述天线装置中，所述天线装置内各部件均为无源器件。不引入有源器件，避免了增加移动通讯终端内部电路的设计难度。
为进一步优化上述技术方案，在上述实施例的基础上优选的，在上述天线装置中，所述天线装置的馈电点结构包括弯折金属条5，所述弯折金属条5通过馈线与所述电路主板2连接。
本发明提供了的这种天线装置是一种易于实现的可用于无断点金属中框和金属背盖天线无源系统的LTE宽带天线，避免了在金属中框中开缝，大大地增强移动终端的结构强度的同时也增加了移动通讯终端的整体美观性；能够通过无源方式实现天线多频点的设计，为移动通讯终端的全频段通信提供了基础；能够为移动通讯终端中其他天线提供完美的净空环境；能够降低手损和头损，且左手和右手的损耗相对均衡。
基于上述实施例中提供的天线装置，本发明还提供了一种移动通讯终端，该移动通讯终端包括无断点的金属中框和全金属背盖，该移动通讯终端包括上述实施例中任意一种天线装置。由于该移动通讯终端采用了上述实施例中的天线装置，所以该移动通讯终端的有益效果请参考上述实施例。
本说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似部分互相参见即可。
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下，在其它实施例中实现。因此，本发明将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。

Claims (7)

  1. 一种用于无断点金属中框和全金属背盖移动通讯终端的天线装置，其特征在于，包括端部与电路主板(2)接触连接的天线主体，所述天线主体连接金属中框(1)，所述天线装置还包括与所述电路主板(2)连接的陷波结构。
  2. 根据权利要求1所述的天线装置，其特征在于，所述陷波结构包括第一陷波结构，所述第一陷波结构具体为伞状金属片(3-1)，所述伞状金属片(3-1)通过其底部固定的金属柱体(3-2)与所述电路主板(2)接触连接。
  3. 根据权利要求2所述的天线装置，其特征在于，所述陷波结构还包括第二陷波结构，所述第二陷波结构具体为T型金属单元(4)，所述T型金属单元(4)与所述电路主板(2)接触连接，所述T型金属单元(4)与所述电路主板(2)的接触位置为所述天线主体的末端位置。
  4. 根据权利要求1所述的天线装置，其特征在于，所述天线主体与所述金属中框(1)与移动通讯终端显示屏相邻的一侧接触连接。
  5. 根据权利要求1所述的天线装置，其特征在于，所述天线装置内各部件均为无源器件。
  6. 根据权利要求1所述的天线装置，其特征在于，所述天线装置的馈电点结构包括弯折金属条(5)，所述弯折金属条(5)通过馈线与所述电路主板(2)连接。
  7. 一种移动通讯终端，包括无断点的金属中框和全金属背盖，其特征在于，包括如权利要求1至6任一项所述的天线装置。
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