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发明授权
US5471146A Method and apparatus for measuring return loss 失效
测量回波损耗的方法和装置

Method and apparatus for measuring return loss
摘要：
A return loss meter (100) for base stations comprises a first transceiver (10) having a first transmitter (12), a first receiver (22 and 30), and a first antenna (20), a second transceiver (50) having a second transmitter (52), a second receiver (62 and 70), and a second antenna (60), wherein the first transceiver and the second transceiver are cross-coupled using at least one directional coupler (16) capable of being switched. The return loss meter includes a device for measuring reflected and transmitted power of the first antenna via a first directional coupler (16) capable of being switched and via a device (74) capable of measuring received signal strength at the second receiver and a device for measuring reflected and transmitted power of the second antenna via a second directional coupler (56) capable of being switched and via a device (34) capable of measuring received signal strength at the first receiver.
摘要（中）：

用于基站的回波损耗计（100）包括具有第一发射机（12），第一接收机（22,30）和第一天线（20）的第一收发器（10），第二收发器（50） 第二发射机（52），第二接收机（62和70）以及第二天线（60），其中所述第一收发机和所述第二收发机使用能够被切换的至少一个定向耦合器（16）进行交叉耦合。 回波损耗计包括用于经由能够被切换的第一定向耦合器（16）来测量第一天线的反射和发射功率的装置，并且经由能够测量第二接收机处的接收信号强度的装置（74） 经由能够切换的第二定向耦合器（56）测量第二天线的反射和发射功率，以及经由能够测量第一接收机的接收信号强度的设备（34）。

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