WO2012068758A1 - 内置式有源数字移动电视天线 - Google Patents

内置式有源数字移动电视天线 Download PDF

Info

Publication number
WO2012068758A1
WO2012068758A1 PCT/CN2010/079960 CN2010079960W WO2012068758A1 WO 2012068758 A1 WO2012068758 A1 WO 2012068758A1 CN 2010079960 W CN2010079960 W CN 2010079960W WO 2012068758 A1 WO2012068758 A1 WO 2012068758A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
unit
layer
active
radiating
Prior art date
Application number
PCT/CN2010/079960
Other languages
English (en)
French (fr)
Inventor
俞斌
吴荻
朱明�
范炼
Original Assignee
惠州市硕贝德通讯科技有限公司
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.)
Filing date
Publication date
Application filed by 惠州市硕贝德通讯科技有限公司 filed Critical 惠州市硕贝德通讯科技有限公司
Publication of WO2012068758A1 publication Critical patent/WO2012068758A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/40—Radiating elements coated with or embedded in protective material
    • 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
    • H01Q9/0414—Substantially flat resonant element parallel to ground plane, e.g. patch antenna in a stacked or folded configuration

Definitions

  • the present invention relates to the field of mobile device antenna technologies, and in particular, to a built-in active digital mobile TV antenna.
  • CMMB mobile TV target users in 2010 is 10 million, and the number of terminal users in the next three years is expected to exceed 50 million.
  • the coverage of the current CMMB digital mobile TV network is concerned, the current signal has been opened in 253 cities across the country, and has been fully operational on January 28, 2010.
  • CMMB mobile digital TV has become more mature in terms of technology, content, service and business operation mode, which has greatly protected the interests of upstream and downstream manufacturers in the entire industry chain. Emerging Markets.
  • the frequency band of digital mobile TV is 470MHz-860MHz, which belongs to the broadband antenna of the UHF band.
  • the antenna size is obviously larger, but the larger size antenna is not suitable for being built in the mobile communication terminal device; on the other hand, the frequency band of the antenna is required to be wider, generally The built-in antenna is difficult to meet such a large bandwidth requirement.
  • the technical problem to be solved by the present invention is to provide an active digital mobile TV antenna that is small in size and suitable for built-in, excellent performance, and suitable for mass production.
  • the technical solution adopted by the present invention is to provide a built-in active digital mobile TV antenna, a built-in active digital mobile TV antenna, including a multi-layer PCB substrate and a radiation unit located on the substrate, a source circuit unit, the radiating unit includes a plurality of metal radiating element layers respectively located on different layers of the PCB substrate, and at least one layer and the active circuit unit are on the same layer of the PCB substrate, and the metal radiating unit layers respectively pass through the metal
  • the vias are electrically connected;
  • the active circuit unit includes an antenna matching circuit and a low noise amplifier circuit electrically connected to the radiating element through the metallized via.
  • the radiating unit layer is two or more; the active circuit unit is located at the uppermost layer or the lowermost layer of the multilayer PCB substrate.
  • the specific unit is: the radiating unit includes a first radiating unit, a second radiating unit, and a third radiating unit sequentially located on each layer of the PCB substrate; the first radiating unit, The second radiating elements are connected by the first row of metallized vias, the first radiating unit and the third radiating unit are connected through the second row of metallized vias, the second radiating element and the third radiating element)
  • the metallized via is connected to the low noise amplifier circuit.
  • the size of the radiating element is tailored to the required antenna radiation performance parameters such that the antenna radiation performance can be optimized by adjusting the size of the radiating elements of each layer.
  • the active digital mobile TV antenna adopts a multi-layer PCB board structure, so the antenna size is small, easy to integrate and built, and is also suitable for other common mobile communication terminal equipment;
  • the active digital mobile TV antenna is built in a mobile communication terminal device such as a mobile phone, and has a long service life and is convenient to use with respect to an external whip antenna;
  • the antenna is built in a mobile communication terminal device such as a mobile phone, and does not damage the appearance of the device, and is beneficial to the structural modeling requirements of the device;
  • the antenna is supplemented with an active circuit of a low-noise amplifier, so that the performance is superior compared with the conventional passive built-in digital television antenna, fully complying with the requirements of the current digital television antenna, and even reaching the external drawbar Antenna performance.
  • FIG. 1 is a schematic structural view of a specific embodiment of the present invention.
  • Figure 2 is a cross-sectional view taken along line A-A' of Figure 2;
  • the active digital mobile TV antenna of the present invention adopts a multi-layer PCB substrate, and each of the layers of the PCB substrate 1 is provided with a radiating unit, and each radiating unit is electrically connected through a metallized through hole; in addition, the multi-layer PCB substrate 1 is the most An active circuit unit is disposed on the upper layer, and the active circuit unit includes an antenna matching circuit and a low noise amplifier circuit, which are also electrically connected to the radiating element through the metalized via.
  • the antenna reasonably optimizes the shape and size of the radiating elements 2, 7, 8 on the three-layer PCB, and connects the first radiating unit 2 and the second radiating layer through the first row of inner surface metallized through holes 3.
  • Layer radiation unit 8 8
  • These metallized vias associate the various layers of radiating elements to achieve the desired radiation structure.
  • the volume of the antenna is effectively reduced, thereby realizing miniaturization of the UHF band antenna.
  • an active circuit unit 6 is arranged on the same side of the first layer radiating element 2 or on the third layer radiating element 8, the active circuit unit being a low noise amplifier circuit.
  • the output end of the active circuit unit adopts a 50 ohm transmission line, and the transmission line can be electrically connected to the radiation unit of the same layer, or can be electrically connected to the second layer radiation unit 7 through the metallized through hole on the active circuit layer, thereby realizing Feed of the antenna. Since the gain of the antenna itself is lower than that of the external whip antenna, the low-noise amplifier active circuit is used to compensate the gain of the antenna, thereby achieving superior antenna performance.
  • the ⁇ -type matching circuit for adjusting the antenna matching is integrated with the active circuit of the low-noise amplifier, so that not only the antenna can be miniaturized, but also the antenna can be made into a standardized built-in active digital television antenna.

Landscapes

  • Telephone Set Structure (AREA)
  • Details Of Aerials (AREA)

Description

内置式有源数字移动电视天线
技术领域
本发明涉及移动设备天线技术领域，具体涉及一种内置式有源数字移动电视天线。
背景技术
在国家“三网融合”政策的推动下，国内数字移动电视将得到迅猛发展。据中广传播透露，2010年CMMB移动电视目标用户数是1000万，未来三年终端用户数有望突破5000万。就目前CMMB数字移动电视网络的覆盖情况来看，目前信号已经在全国253个城市开通，并且已在2010年1月28日全面进入运营状态。经过了两年多的网络建设和市场预热，CMMB移动数字电视在技术、内容、服务和商业运营模式等方面日益成熟，极大的保护了整个产业链上下游厂家利益，各个厂家积极进入这个新兴市场。
目前在国内，应用于数字移动电视终端系统的电视天线发展还相对滞后，主流的数字电视天线都采用外置拉杆天线来实现。外置拉杆天线虽然能在性能上满足指标要求，但在使用寿命、机械强度、使用便捷性，尤其是外观方面很难满足客户要求。所以内置式有源数字电视天线的研究和开发就非常具有实际的商业价值。
另外数字移动电视的频段在470MHz-860MHz，属于UHF频段的宽频带天线。一方面相对于GSM等高频段的内置天线而言，天线尺寸要明显较大，但较大尺寸的天线又不适合内置于移动通信终端设备中；另一方面天线的频带又要求较宽，一般的内置天线很难满足这么大的带宽要求。
发明内容
本发明需要解决的技术问题是提供一种小体积适于内置、性能优良且适于批量制造生产的有源数字移动电视天线。
根据上述需解决的问题，本发明采取的技术方案为：提供一种内置式有源数字移动电视天线，内置式有源数字移动电视天线，包括多层PCB基板及位于基板上的辐射单元、有源电路单元，所述辐射单元包括分别位于PCB基板不同层面上的多个金属辐射单元层，且至少有一层与有源电路单元在PCB基板同一层面上，各金属辐射单元层之间分别通过金属化通孔实现电气连接；所述有源电路单元包括天线匹配电路和低噪声放大器电路，其通过金属化通孔与辐射单元电气连接。
具体的，所述辐射单元层为两个以上；所述有源电路单元位于多层 PCB基板最上层或最底层。
所述辐射单元层为三层时，具体的方案为：所述辐射单元包括依次位于PCB基板各层面上的第一辐射单元、第二辐射单元及第三辐射单元；所述第一辐射单元、第二辐射单元通过第一成排金属化通孔连接，第一辐射单元和第三辐射单元通过第二成排金属化通孔连接、第二辐射单元及第三辐射单元)通过第三成排金属化通孔和低噪声放大器电路连接。
所述辐射单元尺寸根据需求的天线辐射性能参数定制，这样通过调节各层辐射单元的尺寸就可优化天线辐射性能。
与现有技术相比，本发明的有益效果在于：
（1）所述有源数字移动电视天线采用了多层PCB板结构，所以天线尺寸较小，便于集成和内置，同样适用于其他常见的移动通信终端设备中；
（2）所述有源数字移动电视天线内置于手机等移动通信终端设备中，相对外置的拉杆天线而言，使用寿命长，使用方便；
（3）所述天线内置于手机等移动通信终端设备中，不会破坏设备的外观，有利于设备的结构造型要求；
（4）所述天线外加了低噪声放大器的有源电路，所以相比普通的无源内置数字电视天线而言，性能更加优异，完全符合现在数字电视天线的指标要求，甚至能够达到外置拉杆天线的性能。
附图说明
图1为本发明一具体实施例的结构示意图；
图2为图2中A-A’处剖面图。
具体实施方式
为了便于本领域技术人员的理解，下面结合附图对本发明做进一步的详细描述：
本发明所述有源数字移动电视天线采用多层PCB基板多层PCB基板1各个层上分别设辐射单元，各辐射单元之间通过金属化通孔实现电气连接；另外在多层PCB基板1最上层设置有源电路单元，有源电路单元中包括天线匹配电路和低噪声放大器电路，其也通过金属化通孔与辐射单元电气连接。
如图1、2为本发明一具体的实施例结构示意图。实施例中，所述天线在三层PCB板上合理优化辐射单元2、7、8的形状和尺寸，通过第一排内表面金属化通孔3连接第一层辐射单元2和第二层辐射单元7，通过第二排内表面金属化通孔4连接第一层辐射单元2和第三层辐射单元8，通过第三排内表面金属化通孔5连接第二层辐射单元7和第三层辐射单元8。这些金属化通孔使各层辐射单元形成关联，实现预期的辐射结构。利用层层耦合的原理，有效的减小了天线的体积，从而实现UHF频段天线的小型化。
另外在第一层辐射单元2或者在第三层辐射单元8的同一面布置一有源电路单元6，该有源电路单元为低噪声放大器电路。有源电路单元输出端采用50欧姆传输线，该传输线可以与同层的辐射单元电气连接，也可以通过该有源电路层上的金属化通孔与第二层辐射单元7电气连接，从而实现对天线的馈电。由于天线本身的增益相对外置的拉杆天线而言较低，所以采用低噪声放大器有源电路对天线的增益进行补偿，从而达到比较优异的天线性能。同时把用于调整天线匹配的π型匹配电路与低噪声放大器的有源电路进行集成，从而不仅可以实现天线的小型化，而且还可以使该天线成为标准化内置式有源数字电视天线。

Claims (6)

  1. 内置式有源数字移动电视天线，包括多层PCB基板(1)及位于基板(1)上的辐射单元、有源电路单元，其特征在于：所述辐射单元包括分别位于PCB基板不同层面上的多个金属辐射单元层，且至少有一层与有源电路单元在PCB基板同一层面上，各金属辐射单元层之间分别通过金属化通孔实现电气连接；所述有源电路单元（6）包括天线匹配电路和低噪声放大器电路，其通过金属化通孔与辐射单元电气连接。
  2. 根据权利要求1所述的内置式有源数字移动电视天线，其特征在于：所述辐射单元层为两个以上。
  3. 根据权利要求2所述的内置式有源数字移动电视天线，其特征在于：所述有源电路单元位于多层 PCB基板(1)最上层或最底层。
  4. 根据权利要求1所述的内置式有源数字移动电视天线，其特征在于：所述辐射单元包括依次位于PCB基板各层面上的第一辐射单元(2)、第二辐射单元(7)及第三辐射单元(8)；所述第一辐射单元(2)、第二辐射单元(7)通过第一成排金属化通孔(3)连接，第一辐射单元(2)和第三辐射单元(8)通过第二成排金属化通孔(4)连接、第二辐射单元(7)及第三辐射单元(8)通过第三成排金属化通孔(5)和有源电路单元连接。
  5. 根据权利要求4所述的内置式有源数字移动电视天线，其特征在于：所述辐射单元尺寸根据需求的天线辐射性能参数定制。
  6. 根据权利要求5所述的内置式有源数字移动电视天线，其特征在于：所述有源电路单元中天线匹配电路采用π型匹配电路。
PCT/CN2010/079960 2010-11-24 2010-12-17 内置式有源数字移动电视天线 WO2012068758A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2010105716202A CN102110912A (zh) 2010-11-24 2010-11-24 内置式有源数字移动电视天线
CN201010571620.2 2010-11-24

Publications (1)

Publication Number Publication Date
WO2012068758A1 true WO2012068758A1 (zh) 2012-05-31

Family

ID=44174981

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2010/079960 WO2012068758A1 (zh) 2010-11-24 2010-12-17 内置式有源数字移动电视天线

Country Status (2)

Country Link
CN (1) CN102110912A (zh)
WO (1) WO2012068758A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016101095A1 (zh) * 2014-12-22 2016-06-30 华为技术有限公司 一种天线和终端

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1700515A (zh) * 2005-05-30 2005-11-23 东南大学 平衡馈电式宽带基片集成波导缝隙阵列天线单元
CN1828995A (zh) * 2005-03-01 2006-09-06 明基电通股份有限公司 天线装置
CN101227026A (zh) * 2007-12-27 2008-07-23 上海交通大学 片上多金属互联层组合天线
CN201114997Y (zh) * 2007-07-23 2008-09-10 苏州欧西亚电子科技有限公司 内置天线装置
CN101752647A (zh) * 2008-12-02 2010-06-23 佳邦科技股份有限公司 数字电视的天线结构及其制造方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1828995A (zh) * 2005-03-01 2006-09-06 明基电通股份有限公司 天线装置
CN1700515A (zh) * 2005-05-30 2005-11-23 东南大学 平衡馈电式宽带基片集成波导缝隙阵列天线单元
CN201114997Y (zh) * 2007-07-23 2008-09-10 苏州欧西亚电子科技有限公司 内置天线装置
CN101227026A (zh) * 2007-12-27 2008-07-23 上海交通大学 片上多金属互联层组合天线
CN101752647A (zh) * 2008-12-02 2010-06-23 佳邦科技股份有限公司 数字电视的天线结构及其制造方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016101095A1 (zh) * 2014-12-22 2016-06-30 华为技术有限公司 一种天线和终端
US10320068B2 (en) 2014-12-22 2019-06-11 Huawei Technologies Co., Ltd. Antenna and terminal

Also Published As

Publication number Publication date
CN102110912A (zh) 2011-06-29

Similar Documents

Publication Publication Date Title
CN209183755U (zh) 馈电网络
US8942761B2 (en) Two port antennas with separate antenna branches including respective filters
US8711043B2 (en) Wideband antenna
EP2894713B1 (en) Mobile phone three-in-one aerial device and mobile terminal
CN107706512B (zh) 一种用于大规模mimo天线的馈电网络系统
CN1364326A (zh) 用于无线通信的多频带分支天线
CN101820096A (zh) 具有2阶分集的紧凑型天线系统
WO2021147666A1 (zh) 一种天线及终端设备
US20100309087A1 (en) Chip antenna device
US10476151B2 (en) Antenna apparatus and electronic device having the same
US20120121102A1 (en) Earphone antenna device for receiving dual band signal
US8155607B2 (en) Antenna apparatus of portable terminal
WO2023124646A1 (zh) 天线组件及电子设备
EP1839370B1 (en) A two-module integrated antenna and radio
WO2012068758A1 (zh) 内置式有源数字移动电视天线
CN207250709U (zh) 一种多层陶瓷天线和对应的CPW板以及双频Loop天线
CN103259070A (zh) 一种降低损耗的传输线
CN102625488A (zh) 移动终端
CN202871983U (zh) 一种移动终端内置天线装置及其移动终端
US20090176470A1 (en) Base station antenna interface system for antenna cable reduction in dual band deployments
CN201682055U (zh) WiMAX全向串馈阵列天线
CN203134977U (zh) 移动设备3g多频天线
US9398683B2 (en) Packaged capacitor component with multiple self-resonance frequencies
CN107994329B (zh) 一种紧凑型4g lte mimo与gps三合一天线
CN107634329A (zh) 一种多层陶瓷天线和对应的CPW板以及双频Loop天线

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10860103

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 10860103

Country of ref document: EP

Kind code of ref document: A1