Isolation of the T/R switch must be considered when the high power transmitter is connected to the low power radio frequency unit by T/R switch as the radar antennas are reciprocal.

雷达天线往往收发共用，通过收发开关连接高功率发射单元和低功率射频单元要考虑收发开关的隔离度问题。

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Equipment for implementing intelligent antenna includes: array diversity antenna, radio frequency channels, beam forming unit, baseband processing MODEM and beam controller.

一种基于数字波束的智能天线实现装置，包括：阵列分集天线、射频通道、波束形成单元、基带处理MODEM和波束控制器。

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The computer includes the above movable touch-controlling board and the embedded unit, which includes the radio-frequency wireless transceiver and the data interface chip.

所述具有可移动触控板的便携式电脑包括上述可以动触控板和嵌入单元，所述嵌入单元包括射频无线收发器和数据接口芯片。

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The base unit transmits signals across an unused FM frequency, and the user can select from numerous radio stations with the tuner, which also has a "Tell Me More" button that can be used to obtain more information about songs being broadcast, or even to purchase MP3 files or CDs.

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