WO2011137610A1 - 一种通讯终端的测试装置及方法 - Google Patents

一种通讯终端的测试装置及方法 Download PDF

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Publication number
WO2011137610A1
WO2011137610A1 PCT/CN2010/075746 CN2010075746W WO2011137610A1 WO 2011137610 A1 WO2011137610 A1 WO 2011137610A1 CN 2010075746 W CN2010075746 W CN 2010075746W WO 2011137610 A1 WO2011137610 A1 WO 2011137610A1
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Prior art keywords
communication terminal
circuit
antenna
branch
test
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PCT/CN2010/075746
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English (en)
French (fr)
Inventor
周庆建
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中兴通讯股份有限公司
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Publication of WO2011137610A1 publication Critical patent/WO2011137610A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/10—Monitoring; Testing of transmitters

Definitions

  • the invention relates to a testing technology of a communication terminal, in particular to a testing device and method for a communication terminal when testing a radio frequency index of a communication terminal.
  • the relevant RF indicators need to be debugged and tested during the development phase.
  • product certification tests such as domestic network access test, 3C test and radio communication committee test, and foreign EU (CE, Conformite Europeenne), Federal Communications Commission (FCC), GSM Certification Forum (GCF, GSM Certification Forum) and other certification tests, some of which are mandatory, some are based on specific carrier requirements.
  • communication terminals are versatile. In addition to basic telephone and data functions, they often have functions such as Bluetooth (Bluetooth), Wireless Fidelity (GPS) and Global Position System (GPS).
  • Bluetooth Bluetooth
  • GPS Wireless Fidelity
  • GPS Global Position System
  • the radio frequency test circuit of the communication terminal is as shown in FIG. 1 , and a special connector for plugging a coaxial RF cable, that is, an RF test socket, an RF, is generally installed between the RF circuit and the antenna of the communication terminal.
  • the test socket is soldered to the main board of the communication terminal.
  • the communication terminal RF circuit is connected to the test instrument through the coaxial cable.
  • the function of the RF test socket is equivalent to a switch.
  • the welded coaxial cable is not strong, especially when the main board has limited space, the scraped area is small, and it is not conducive to soldering, the coaxial cable is easy to loose; during the mailing process, or the coaxial cable When the head is screwed on the test instrument, the coaxial cable is very easy to fall off, which will affect the test efficiency and delay the progress of the project;
  • the coaxial cable connector is required, and it is soldered to the main board and cannot be recycled and reused after being sent for measurement, resulting in waste of research and development resources.
  • the main object of the present invention is to provide a test apparatus and method for a communication terminal, which can improve the reliability and flexibility of the test, save material consumption, and reduce production cost.
  • the invention provides a testing device for a communication terminal, the device comprising: a communication terminal radio frequency circuit, an antenna and a radio frequency test socket, the device further comprising: a selection module, wherein the input end of the selection module is connected to the output end of the radio frequency circuit of the communication terminal, Select the output of the module separately with the antenna and RF
  • the test socket is connected, and is used for conducting the test of the communication terminal, turning on the branch circuit of the RF circuit and the RF test socket of the communication terminal, and disconnecting the branch circuit of the RF circuit and the antenna of the communication terminal.
  • the selection module is a zero ohm resistor connected between the RF circuit of the communication terminal and the antenna, and/or between the RF circuit of the communication terminal and the RF test socket; and between the zero-ohm resistance and the solder joint of the communication terminal motherboard Soldering or disconnecting, realize the communication terminal RF circuit and antenna branch, and the communication terminal RF circuit and the RF test socket branch.
  • the selection module is a single-pole double-throw switch, which is connected between the RF circuit of the communication terminal and the antenna, and between the RF circuit of the communication terminal and the RF test socket, realizes the RF circuit and the antenna branch of the communication terminal, and the RF terminal of the communication terminal.
  • the circuit and the RF test block branch are switched on and off.
  • the selection module further includes an antenna matching circuit; and the on/off of the line between the radio frequency circuit and the antenna of the communication terminal is realized by the on and off of the antenna matching circuit.
  • the selection module is further configured to disconnect the radio circuit of the communication terminal and the branch of the radio frequency test socket when the communication terminal is normally used, and open the branch of the radio frequency circuit and the antenna of the communication terminal.
  • the invention also provides a testing method for a communication terminal, the method comprising: setting a selection module, connecting an input end of the set selection module to an output end of a radio terminal of the communication terminal, and selecting an output end of the module respectively with an antenna and a radio frequency
  • the test socket is connected;
  • the branch circuit of the communication terminal RF circuit and the RF test socket is turned on by the selection module, and the branch circuit of the RF circuit and the antenna of the communication terminal is disconnected.
  • the selection module is a zero ohm resistor; the welding terminal or the antenna branch of the communication terminal is realized by welding or disconnecting between the zero ohm resistor and the soldering point of the communication terminal main board, and the radio frequency circuit and the RF test socket of the communication terminal are realized. The opening and closing of the branch.
  • the selection module is a single-pole double-throw switch; the single-pole double-throw switch realizes the communication terminal RF circuit and the antenna branch, and the communication terminal RF circuit and the RF test socket branch are turned on and off.
  • the selection module further includes an antenna matching circuit; and the on/off of the line between the radio frequency circuit and the antenna of the communication terminal is realized by the on and off of the antenna matching circuit.
  • the method further includes: when the communication terminal is normally used, disconnecting the branch circuit of the communication terminal radio frequency circuit and the radio frequency test socket by the selection module, and turning on the branch circuit of the radio frequency circuit and the antenna of the communication terminal.
  • the testing device and method for the communication terminal set a selection module, so that the input end of the selection module is connected with the output end of the radio frequency circuit of the communication terminal, and the output end of the selection module is respectively connected with the antenna and the RF test socket;
  • the module turns on the branch circuit of the RF circuit and the RF test socket of the communication terminal, disconnects the branch circuit of the RF circuit and the antenna of the communication terminal, and tests the communication terminal;
  • the RF terminal of the communication terminal is disconnected by selecting the module.
  • the RF circuit of the communication terminal and the branch of the antenna are turned on to normally use the communication terminal.
  • the different requirements of the communication terminal test and the mass production phase are satisfied by means of hardware switching, and the coaxial cable and the coaxial cable connector are not required to be set in the test phase of the communication terminal.
  • the motherboard of the communication terminal is not damaged, the instability caused by the welding of the coaxial cable in the prior art can be avoided, the design and use of the test circuit are facilitated, and the reliability and flexibility of the test are improved;
  • In the mass production stage there is no need to set up an RF test socket, and the RF test socket can be recycled in the subsequent test circuit, thus reducing the production cost to some extent.
  • FIG. 1 is a structural diagram of a test circuit of a prior art communication terminal
  • FIG. 2 is an improved structural diagram of a test circuit of a prior art communication terminal
  • FIG. 3 is a circuit structural diagram of a test device of a communication terminal according to the present invention.
  • FIG. 4 is a circuit structural diagram of a test device applied in Embodiment 1 of the present invention.
  • 5 is a circuit structural diagram of a testing device applied in Embodiment 2 of the present invention
  • 6 is a circuit structural diagram of a test device applied in Embodiment 3 of the present invention
  • FIG. 7 is a flowchart of a testing method of a communication terminal according to the present invention. detailed description
  • the basic idea of the present invention is: setting a selection module, the input end of the selection module is connected to the output end of the radio circuit of the communication terminal, and the output end of the selection module is respectively connected to the antenna and the RF test socket; when testing the communication terminal, The branch circuit of the communication terminal RF circuit and the RF test socket is turned on by the selection module, and the branch circuit of the RF circuit and the antenna of the communication terminal is disconnected.
  • the testing device of the communication terminal provided by the present invention includes: a communication terminal radio frequency circuit 1, an antenna 4 and a radio frequency test socket 5, and a selection module 3;
  • Selecting module 3 the input end is connected with the output end of the communication terminal RF circuit 1, and the output end is respectively connected with the antenna 4 and the RF test stand 5 for controlling the RF circuit and the antenna branch of the communication terminal, and the RF circuit and the RF test stand line of the communication terminal On and off.
  • the selection module 3 divides the signal output by the communication terminal RF circuit 1 into two branches: one branch is connected to the antenna 4, and the other branch is connected to the RF test socket 5; when one branch is open, the other is The branch presents a path, or when one branch presents a short circuit, the other branch presents an open circuit.
  • the selection module 3 is specifically a zero ohm resistor, as shown in FIG. 4 and FIG. 5, connected between the RF circuit 1 of the communication terminal and the antenna 4, and/or between the RF circuit 1 of the communication terminal and the RF test socket 5, Through the welding and disconnection between the zero ohm resistor and the solder joint of the communication terminal motherboard, the branch circuit of the RF terminal 1 and the antenna 4 of the communication terminal, and the branch between the RF circuit 1 and the RF test socket 5 of the communication terminal are realized.
  • the selection module 3 can also be a single-pole double-throw switch 10, as shown in FIG. 6, connected between the communication terminal RF circuit 1 and the antenna 4, and between the communication terminal RF circuit 1 and the RF test socket 5, for realizing The communication terminal RF circuit 1 and the antenna 4 branch, and the communication terminal RF circuit 1 and the RF test socket 5 branch are turned on and off; wherein, the single pole double throw switch 10 can be used by the base of the communication terminal With the main chip through the general input / output (GPIO, General Purpose Input / Output) control line
  • the selection module 3 may further include: an antenna matching circuit 8 for performing on/off of the branch between the radio frequency circuit 1 and the antenna 4 of the communication terminal through the on/off of the antenna matching circuit 8.
  • the branch circuit between the RF circuit 1 of the communication terminal and the RF test socket 5 is turned on by the selection module 3, and the branch between the RF circuit 1 and the antenna 4 of the communication terminal is disconnected to facilitate the test of the prototype;
  • the branch circuit between the RF circuit 1 and the RF test socket 5 of the communication terminal is disconnected by the selection module, and the branch circuit between the RF circuit 1 and the antenna 4 of the terminal is turned on.
  • the present invention also provides a test method for a communication terminal. As shown in FIG. 7, the method includes the following steps:
  • Step 701 Set a selection module, so that an input end of the selection module is connected to an output end of the radio circuit of the communication terminal, and an output end of the selection module is respectively connected to the antenna and the RF test socket;
  • Step 702 When testing the communication terminal, disconnecting the RF circuit of the communication terminal and the branch of the RF test socket by selecting the module, and disconnecting the branch circuit of the RF circuit and the antenna of the communication terminal;
  • Step 703 When the communication terminal is mass-produced, the branch circuit of the communication terminal RF circuit and the RF test socket is disconnected by the selection module, and the branch circuit of the RF circuit and the antenna of the communication terminal is turned on.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the selection module includes: a zero ohm resistor and an antenna matching circuit.
  • the RF signal outputted by the communication terminal RF circuit 1 is divided into two branches, which respectively enter the antenna 4 and the RF test socket 5, and the RF signal passes through the antenna matching circuit 8 before entering the antenna 4, and the antenna matching circuit 8 is used to make the antenna impedance Matches the impedance of the communication terminal board. All RF impedance
  • the control trace 2 uses a 50 ohm transmission line, and the microstrip line structure is used to facilitate high frequency signal transmission; two pads are reserved on the branch connected to the antenna 4 and the RF test socket 5 for soldering zero ohm resistors 6 and zero ohm resistors 7.
  • the two pads on each branch are the same as the standard device package. Considering the layout area of the pads and the soldering difficulty, the package pads of the 0201 or 0402 models can be used. .
  • the zero-ohm resistance 6 of the communication terminal RF circuit 1 and the antenna branch is not soldered, only the zero-ohm resistance 7 of the communication terminal RF circuit 1 and the RF test stand 5 is soldered, thereby disconnecting the communication terminal RF a branch between the circuit 1 and the antenna matching circuit 8 and the antenna 4, and a branch between the RF circuit 1 and the RF test socket 5 of the communication terminal is turned on to facilitate the debugging test of the communication terminal;
  • the zero ohm resistor 7 and the RF test socket 5 are not soldered, only the zero ohm resistor 6 is welded, thereby disconnecting the branch circuit of the RF terminal 1 and the RF test socket 5 of the communication terminal, and turning on the RF circuit of the communication terminal. 1 to the antenna matching circuit 8 and the branch of the antenna 4, so that the communication terminal can be used normally; since the RF test socket 5 is not required to be installed in the mass production stage of the communication terminal, and the RF test socket 5 can be recycled and utilized in the subsequent test circuit. Therefore, the cost of production can be reduced.
  • the Set the antenna matching circuit 8 since the on/off of the branch between the radio frequency circuit and the antenna of the communication terminal is implemented by the zero ohm resistor 6, according to the specific application, when the antenna and the communication terminal board satisfy the impedance matching condition, the Set the antenna matching circuit 8; this circuit needs to separately plan the pad area of two zero ohm devices on each branch, a total of four pads, and an RF test socket and corresponding branch traces, according to the route Actually, the branch length of the line is controlled so as not to affect the impedance value or reflection of the corresponding RF impedance control line.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the selection module includes: a zero ohm resistor and an antenna matching circuit.
  • the zero ohm resistor 6 is not provided, but the branch of the communication terminal between the RF circuit 1 and the antenna 4 is turned on and off by the antenna.
  • the matching circuit 8 is implemented, so the antenna matching circuit 8 must be provided.
  • the antenna matching circuit 8 of the communication terminal RF circuit 1 and the antenna 4 branch is not soldered, and only the zero-ohm resistance 7 of the communication terminal RF circuit 1 and the RF test stand 5 branch is soldered, so that the communication can be disconnected.
  • the terminal RF circuit 1 to the antenna matching circuit 8 and the branch of the antenna 4, and the branch between the RF circuit 1 and the RF test socket 5 of the communication terminal is turned on to facilitate the debugging test of the communication terminal;
  • the zero ohm resistor 7 and the RF test socket 5 are not soldered, and only the antenna matching circuit 8 is soldered, so that the branch circuit of the RF terminal 1 and the RF test socket 5 of the communication terminal can be disconnected, and the RF terminal of the communication terminal is turned on.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • the selection module includes: Single pole double throw switch.
  • the RF signal outputted by the RF circuit 1 of the communication terminal is divided into two branches by the single-pole double-throw switch 10, and enters the antenna 4 and the RF test socket 5 respectively.
  • the RF signal passes through the antenna matching circuit 8 before entering the antenna 4.
  • the antenna matching circuit 8 may not be provided.
  • the baseband chip of the communication terminal controls the single-pole double-throw switch 10 through the GPIO control line 9, so that the single-pole double-throw switch 10 turns on the branch and disconnection of the RF terminal 1 and the RF test socket 5 of the communication terminal.
  • the baseband chip of the communication terminal controls the single-pole double-throw switch 10 through the GPIO control line 9, so that the single-pole double-throw switch 10 conducts the communication terminal RF line 1 and the antenna matching circuit 8 and the antenna 4 branch Disconnecting the RF circuit 1 of the communication terminal and the branch of the RF test socket 5 to enable the communication terminal to be used normally; since the RF test socket 5 is not required to be installed in the mass production stage of the communication terminal, the RF test socket 5 can be recycled. In subsequent test circuits, the cost of production can therefore be reduced.
  • the third embodiment it is necessary to plan the layout area of a single-pole double-throw switch, and add a GPIO control line for the selection control of the single-pole double-throw switch; the advantage is that the channel can be accessed without manually increasing or decreasing the zero-ohm resistance or the antenna matching circuit component.
  • the choice makes the solution more flexible, but the corresponding cost is higher than the previous two embodiments and needs to be considered comprehensively.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

一种通讯终端的测试装置及方法，设置选择模块，使该选择模块的输入端与通讯终端射频电路的输出端相连，选择模块的输出端分别与天线和射频测试座相连；在对通讯终端进行测试时，通过选择模块导通通讯终端射频电路与射频测试座的支路，断开通讯终端射频电路与天线的支路；在通讯终端批量生产时，通过选择模块断开通讯终端射频电路与射频测试座的支路，导通通讯终端射频电路与天线的支路，以正常使用通讯终端。采用本发明所述的装置及方法，避免了同轴线缆带来的不稳定性，方便测试电路的设计和使用，提高了测试的可靠性和灵活性，并在一定程度上降低了生产成本。

Description

一种通讯终端的测试装置及方法 技术领域
本发明涉及通讯终端的测试技术， 特别是在测试通讯终端的射频指标 时的一种通讯终端的测试装置及方法。 背景技术
通讯终端设计完成后， 在研发阶段需要进行相关射频指标的调试测试， 在性能稳定后， 需要进行产品认证测试， 如国内的入网测试， 3C测试及无 线电通讯委员会测试， 以及国外的欧盟（CE, Conformite Europeenne ), 联 邦通信委员会 ( FCC, Federal Communication Commission ). GSM认证论坛 ( GCF , GSM Certification Forum )等认证测试， 这些认证有些是强制的， 有些是根据具体运营商要求进行的。 现在通讯终端功能多样， 除却基本的 电话及数据功能外， 往往具备蓝牙（ΒΤ, Bluetooth ) /无线保真技术（WIFI, Wireless Fidelity ) /全球定位***（ GPS , Global Position System )等功能， 这些功能的验证测试需要一个稳定性好、 方便操作的测试电路。
现有技术中， 通讯终端的射频测试电路如图 1 所示， 在通讯终端射频 电路及天线之间， 一般均安装有可插接同轴射频线缆的专用连接器， 即射 频测试座， 射频测试座焊接在通讯终端主板上， 当插头***到射频测试座 时， 通过同轴线缆将通讯终端射频电路连接至测试仪表。 这种射频测试座 功能等同于一个开关， 当插头***射频测试座， 则通讯终端射频电路和天 线间的连接断开， 通讯终端射频电路通过同轴线缆与测试仪表连接， 可以 对通讯终端进行射频测试； 当插头拔出射频测试座， 则通讯终端射频电路 和测试仪表断开， 通讯终端射频电路和天线直接连接， 通讯终端可正常使 用。 上述方法可靠性高， 但由于射频测试座需固定安装在通讯终端主板上， 成本较高， 因此， 常用于通讯终端的天线测试， 而对于 BT/WIFI/GPS电路 性能的测试， 为节约设计成本， 往往会省掉这个射频测试座， 其釆用的电 路结构如图 2所示， 当通讯终端在测试阶段， 为验证主板上 BT/WIFI/GPS 电路性能， 只能手动在主板上刮地， 然后将同轴线缆的外层地焊接在主板 刮地处， 将同轴线缆内芯焊接在 BT/WIFI/GPS电路的信号馈点焊盘上。 这 种方法存在以下缺点：
1 )手动焊接同轴线缆， 如果信号屏蔽及接地不良， 会影响测试结果及 调试判断；
2 )所焊接同轴线缆不牢固， 尤其当主板空间有限、 所刮地面积较小、 不利于焊锡时， 同轴电缆容易松动； 在送测样机邮寄过程中、 或在将同轴 线缆头拧接在测试仪表上时， 同轴电缆非常容易脱落， 会影响测试效率， 耽误项目进度；
3 )由于需要将主板设置刮地处， 并利用 BT/WIFI/GPS电路的信号馈点 焊盘， 因此主板会遭到一定程度的破坏， 待样机测试完毕， 由于相应的主 板电路已被破坏， 导致测试样机无法正常使用；
4 )需要使用同轴线缆连接头， 且焊接到主板上以及送测后不能回收重 复利用， 造成研发资源的浪费。 发明内容
有鉴于此， 本发明的主要目的在于提供一种通讯终端的测试装置及方 法， 能提高测试的可靠性和灵活性， 节约物料消耗， 降低生产成本。
为达到上述目的， 本发明的技术方案是这样实现的：
本发明提供了一种通讯终端的测试装置， 该装置包括： 通讯终端射频 电路、 天线和射频测试座， 该装置还包括： 选择模块， 选择模块的输入端 与通讯终端射频电路的输出端相连， 选择模块的输出端分别与天线和射频 测试座相连， 用于在对通讯终端进行测试时， 导通通讯终端射频电路与射 频测试座的支路， 断开通讯终端射频电路与天线的支路。
上述方案中， 所述选择模块为零欧姆电阻， 连接于通讯终端射频电路 与天线之间， 和 /或通讯终端射频电路与射频测试座之间； 通过零欧姆电阻 与通讯终端主板焊点之间的焊接或断开， 实现通讯终端射频电路与天线支 路， 以及通讯终端射频电路与射频测试座支路的通断。
上述方案中， 所述选择模块为单刀双掷开关， 连接于通讯终端射频电 路与天线之间和通讯终端射频电路与射频测试座之间， 实现通讯终端射频 电路与天线支路， 以及通讯终端射频电路与射频测试座支路的通断。
上述方案中， 所述选择模块还包括天线匹配电路； 通过天线匹配电路 的通断， 实现通讯终端射频电路与天线之间线路的通断。
上述方案中， 所述选择模块， 还用于在正常使用通讯终端时， 断开通 讯终端射频电路与射频测试座的支路， 导通通讯终端射频电路与天线的支 路。
本发明还提供了一种通讯终端的测试方法， 该方法包括： 设置选择模 块， 将所设置的选择模块的输入端与通讯终端射频电路的输出端相连， 选 择模块的输出端分别与天线和射频测试座相连；
在对通讯终端进行测试时， 通过选择模块导通通讯终端射频电路与射 频测试座的支路， 断开通讯终端射频电路与天线的支路。
上述方案中， 所述选择模块为零欧姆电阻； 通过零欧姆电阻与通讯终 端主板焊点之间的焊接或断开， 实现通讯终端射频电路与天线支路， 以及 通讯终端射频电路与射频测试座支路的通断。
上述方案中， 所述选择模块为单刀双掷开关； 通过单刀双掷开关实现 通讯终端射频电路与天线支路， 以及通讯终端射频电路与射频测试座支路 的通断。 上述方案中， 所述选择模块还包括天线匹配电路； 通过天线匹配电路 的通断， 实现通讯终端射频电路与天线之间线路的通断。
上述方案中， 该方法进一步包括： 在正常使用通讯终端时， 通过选择 模块断开通讯终端射频电路与射频测试座的支路， 导通通讯终端射频电路 与天线的支路。
本发明所提供的通讯终端的测试装置及方法， 设置选择模块， 使该选 择模块的输入端与通讯终端射频电路的输出端相连， 选择模块的输出端分 别与天线和射频测试座相连； 通过选择模块导通通讯终端射频电路与射频 测试座的支路， 断开通讯终端射频电路与天线的支路， 以对通讯终端进行 测试； 在通讯终端批量生产时， 通过选择模块断开通讯终端射频电路与射 频测试座的支路， 导通通讯终端射频电路与天线的支路， 以正常使用通讯 终端。
釆用本发明所述的装置及方法， 通过硬件通断的方式满足了通讯终端 测试及批量生产阶段的不同需要， 在通讯终端的测试阶段， 无需设置同轴 线缆和同轴线缆接头， 且不破坏通讯终端的主板， 能避免现有技术中焊接 同轴线缆时对测试带来的不稳定性， 方便测试电路的设计和使用， 提高测 试的可靠性和灵活性； 由于在通讯终端批量生产阶段， 无需设置射频测试 座， 并可将射频测试座回收利用在后续的测试电路中， 因此在一定程度上 降低了生产成本。 附图说明
图 1为现有技术通讯终端的测试电路结构图；
图 2为现有技术通讯终端的测试电路改进结构图；
图 3为本发明通讯终端的测试装置电路结构图；
图 4为本发明实施例一中应用的测试装置电路结构图；
图 5为本发明实施例二中应用的测试装置电路结构图； 图 6为本发明实施例三中应用的测试装置电路结构图；
图 7为本发明通讯终端的测试方法流程图。 具体实施方式
本发明的基本思想是： 设置选择模块， 使该选择模块的输入端与通讯 终端射频电路的输出端相连， 选择模块的输出端分别与天线和射频测试座 相连； 在对通讯终端进行测试时， 通过选择模块导通通讯终端射频电路与 射频测试座的支路， 断开通讯终端射频电路与天线的支路。
本发明提供的通讯终端的测试装置， 如图 3 所示， 该装置包括： 通讯 终端射频电路 1、 天线 4和射频测试座 5 , 还包括选择模块 3 ; 其中，
选择模块 3 , 输入端与通讯终端射频电路 1输出端相连， 输出端分别连 接天线 4和射频测试座 5 , 用于控制通讯终端射频电路与天线支路， 以及通 讯终端射频电路与射频测试座线路的通断。
所述选择模块 3 , 将通讯终端射频电路 1输出的信号分成两条支路： 一 条支路与天线 4相连， 另一条支路与射频测试座 5相连； 当一条支路呈现 断路时， 另一条支路呈现通路， 或当一条支路呈现短路时， 另一条支路呈 现断路。
所述选择模块 3 , 具体为零欧姆电阻， 如图 4、 图 5所示， 连接于通讯 终端射频电路 1与天线 4之间， 和 /或通讯终端射频电路 1与射频测试座 5 之间， 通过零欧姆电阻与通讯终端主板焊点之间的焊接与断开， 实现通讯 终端射频电路 1与天线 4支路， 以及通讯终端射频电路 1与射频测试座 5 之间支路的通断。
所述选择模块 3 , 还可以为单刀双掷开关 10, 如图 6所示， 连接于通 讯终端射频电路 1与天线 4之间和通讯终端射频电路 1与射频测试座 5之 间， 用于实现通讯终端射频电路 1与天线 4支路， 以及通讯终端射频电路 1 与射频测试座 5支路的通断； 其中， 单刀双掷开关 10可以由通讯终端的基 带主芯片通过通用输入 /输出 （ GPIO , General Purpose Input/Output )控制线
9来控制。
所述选择模块 3 , 还可以包括： 天线匹配电路 8, 用于通过天线匹配电 路 8的通断， 实现通讯终端射频电路 1与天线 4之间支路的通断。
对于测试的样机， 通过选择模块 3导通通讯终端射频电路 1与射频测 试座 5之间的支路， 并断开通讯终端射频电路 1与天线 4之间的支路， 以 便于样机的测试； 样机测试完毕后， 在通讯终端发货及批量生产阶段， 通 过选择模块断开通讯终端射频电路 1与射频测试座 5之间的支路， 导通终 端射频电路 1与天线 4之间的支路， 以正常使用通讯终端； 另外， 由于在 通讯终端批量生产阶段， 无需设置射频测试座 5 , 并可将射频测试座 5回收 利用在后续的测试电路中， 因此可以降低生产的成本。
基于上述装置， 本发明还提供了一种通讯终端的测试方法， 如图 7所 示， 该方法包括以下步骤：
步骤 701 : 设置选择模块，使该选择模块的输入端与通讯终端射频电路 的输出端相连， 该选择模块的输出端分别与天线和射频测试座相连；
步骤 702: 在通讯终端测试时， 通过选择模块导通通讯终端射频电路与 射频测试座的支路， 断开通讯终端射频电路与天线的支路；
步骤 703: 在通讯终端批量生产时， 通过选择模块断开通讯终端射频电 路与射频测试座的支路， 导通通讯终端射频电路与天线的支路。
下面以具体实施例对本发明所述的方案做以详细描述。
实施例一：
如图 4所示， 选择模块包括： 零欧姆电阻和天线匹配电路。
通讯终端射频电路 1输出的射频信号被分为两条支路，分别进入天线 4 和射频测试座 5 , 该射频信号在进入天线 4之前经过天线匹配电路 8 , 天线 匹配电路 8用于使天线阻抗与通讯终端主板阻抗相匹配。 所有的射频阻抗 控制走线 2釆用 50欧姆传输线， 釆用微带线结构以利于高频信号传输； 在连接至天线 4和射频测试座 5的支路上分别预留两个焊盘， 用于焊 接零欧姆电阻 6和零欧姆电阻 7, 为方便焊接，每条支路上的两个焊盘同标 准器件封装相同，综合考虑焊盘所占布局面积及焊接难度，釆用 0201或 0402 型号的封装焊盘均可。
在需要测试的样机上， 不焊接通讯终端射频电路 1 与天线支路上的零 欧姆电阻 6,只焊接通讯终端射频电路 1与射频测试座 5支路上的零欧姆电 阻 7 ,从而断开通讯终端射频电路 1到天线匹配电路 8及天线 4之间的支路， 导通通讯终端射频电路 1和射频测试座 5之间的支路， 方便通讯终端的调 试测试；
在通讯终端的批量生产阶段， 不焊接零欧姆电阻 7和射频测试座 5 , 只 焊零欧姆电阻 6,从而断开通讯终端射频电路 1与射频测试座 5的支路， 导 通通讯终端射频电路 1到天线匹配电路 8及天线 4的支路， 使通讯终端能 够正常使用； 由于在通讯终端批量生产阶段， 无需设置射频测试座 5 , 并可 将射频测试座 5回收利用在后续的测试电路中， 因此可以降低生产的成本。
在实施例一的电路布局中， 由于通讯终端射频电路与天线之间支路的 通断由零欧姆电阻 6 实现， 所以根据具体应用场合， 当天线与通讯终端主 板满足阻抗匹配条件时， 可以不设置天线匹配电路 8; 此电路需分别在每条 支路上规划两个零欧姆器件的焊盘区， 共计四个焊盘， 还有一个射频测试 座及相应的分支走线， 走线时要根据实际情况对线路的分支长度进行控制， 以免影响相应射频阻抗控制线的阻抗值或产生反射。
实施例二：
如图 5所示， 选择模块包括： 零欧姆电阻和天线匹配电路。
与图 4不同的是， 在通讯终端射频电路 1到天线 4的支路中， 不设置 零欧姆电阻 6,但由于通讯终端射频电路 1与天线 4之间支路的通断由天线 匹配电路 8实现， 因此必须设置天线匹配电路 8。
在需要测试的样机上， 不焊接通讯终端射频电路 1与天线 4支路上的 天线匹配电路 8,只焊接通讯终端射频电路 1与射频测试座 5支路上的零欧 姆电阻 7,从而可断开通讯终端射频电路 1到天线匹配电路 8及天线 4的支 路， 导通通讯终端射频电路 1与射频测试座 5之间的支路， 以方便通讯终 端的调试测试；
在通讯终端的批量生产阶段， 不焊接零欧姆电阻 7和射频测试座 5 , 只 焊接天线匹配电路 8 ,从而可断开通讯终端射频电路 1与射频测试座 5的支 路， 导通通讯终端射频电路 1与天线匹配电路 8及天线 4的支路； 由于在 通讯终端批量生产阶段， 无需设置射频测试座 5 , 并可将射频测试座 5回收 利用在后续的测试电路中， 因此可以降低生产的成本。
在实施例二的电路布局中，只需在通讯终端射频电路 1到射频测试座 5 之间的支路上规划一个小封装零欧姆器件的焊盘区， 共计两个焊盘， 比实 施例一减少了一个小封装零欧姆器件的焊盘区。
实施例三：
如图 6所示， 选择模块包括： 单刀双掷开关。
与图 4和图 5不同的是， 图 6中没有设置零欧姆电阻， 添加了一个由 GPIO控制线 9控制的单刀双掷开关 10。
通讯终端射频电路 1 输出的射频信号被单刀双掷开关 10分为两条支 路， 分别进入天线 4和射频测试座 5 , 射频信号在进入天线 4之前经过天线 匹配电路 8,根据具体应用场合， 当天线与通讯终端主板满足阻抗匹配条件 时， 可以不设置天线匹配电路 8。
在需要测试的样机上，通讯终端的基带芯片通过 GPIO控制线 9对单刀 双掷开关 10进行控制， 使单刀双掷开关 10导通通讯终端射频电路 1与射 频测试座 5的支路、 断开通讯终端射频电路 1与天线匹配电路 8及天线 4 的支路， 方便通讯终端的调试测试；
在通讯终端的批量生产阶段， 通讯终端的基带芯片通过 GPIO控制线 9 对单刀双掷开关 10进行控制，使单刀双掷开关 10导通通讯终端射频线路 1 与天线匹配电路 8及天线 4支路、断开通讯终端射频电路 1与射频测试座 5 的支路， 以使通讯终端能够正常使用； 由于在通讯终端批量生产阶段， 无 需设置射频测试座 5 , 并可将射频测试座 5回收利用在后续的测试电路中， 因此可以降低生产的成本。
实施例三中需要规划一个单刀双掷开关的布局面积， 以及增加一根 GPIO控制线进行单刀双掷开关的选择控制； 优势是不用手动通过增减零欧 姆电阻或天线匹配电路元件便可进行通路的选择， 使方案更具有灵活性， 但是相应地成本也比前两种实施例要高， 需要综合考虑。
以上所述， 仅为本发明的较佳实施例而已， 并非用于限定本发明的保 护范围， 凡在本发明的精神和原则之内所作的任何修改、 等同替换和改进 等， 均应包含在本发明的保护范围之内。

Claims

权利要求书
1、 一种通讯终端的测试装置， 该装置包括： 通讯终端射频电路、 天线 和射频测试座， 其特征在于， 该装置还包括：
选择模块， 选择模块的输入端与通讯终端射频电路的输出端相连， 选 择模块的输出端分别与天线和射频测试座相连， 用于在对通讯终端进行测 试时， 导通通讯终端射频电路与射频测试座的支路， 断开通讯终端射频电 路与天线的支路。
2、 根据权利要求 1所述的装置， 其特征在于， 所述选择模块为零欧姆 电阻， 连接于通讯终端射频电路与天线之间， 和 /或通讯终端射频电路与射 频测试座之间； 通过零欧姆电阻与通讯终端主板焊点之间的焊接或断开， 实现通讯终端射频电路与天线支路， 以及通讯终端射频电路与射频测试座 支路的通断。
3、 根据权利要求 1所述的装置， 其特征在于， 所述选择模块为单刀双 掷开关， 连接于通讯终端射频电路与天线之间和通讯终端射频电路与射频 测试座之间， 实现通讯终端射频电路与天线支路， 以及通讯终端射频电路 与射频测试座支路的通断。
4、 根据权利要求 2或 3所述的装置， 其特征在于， 所述选择模块还包 括天线匹配电路； 通过天线匹配电路的通断， 实现通讯终端射频电路与天 线之间线路的通断。
5、 根据权利要求 1至 3任一项所述的装置， 其特征在于， 所述选择模 块， 还用于在正常使用通讯终端时， 断开通讯终端射频电路与射频测试座 的支路， 导通通讯终端射频电路与天线的支路。
6、 一种通讯终端的测试方法， 其特征在于， 该方法包括： 设置选择模 块， 将所设置的选择模块的输入端与通讯终端射频电路的输出端相连， 选 择模块的输出端分别与天线和射频测试座相连； 在对通讯终端进行测试时， 通过选择模块导通通讯终端射频电路与射 频测试座的支路， 断开通讯终端射频电路与天线的支路。
7、 根据权利要求 6所述的方法， 其特征在于， 所述选择模块为零欧姆 电阻； 通过零欧姆电阻与通讯终端主板焊点之间的焊接或断开， 实现通讯 终端射频电路与天线支路， 以及通讯终端射频电路与射频测试座支路的通 断。
8、 根据权利要求 6所述的方法， 其特征在于， 所述选择模块为单刀双 终端射频电路与射频测试座支路的通断。
9、 根据权利要求 7或 8所述的方法， 其特征在于， 所述选择模块还包 括天线匹配电路； 通过天线匹配电路的通断， 实现通讯终端射频电路与天 线之间线路的通断。
10、 根据权利要求 6至 8任一项所述的方法， 其特征在于， 该方法进 一步包括： 在正常使用通讯终端时， 通过选择模块断开通讯终端射频电路 与射频测试座的支路， 导通通讯终端射频电路与天线的支路。
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