---射频开关的主要作用是选择合适的射频路径（RF path）。开关的结构和种类不同,WLAN网络接口卡（NIC）上最常用的开关类型是单刀双掷和分集（或称为转换）开关。
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RF return path 与一个射频回传路径
The HNRe2 system permits simultaneous use of the same frequency between node pairs that are not in each other's RF path.
该HNRe2系统支持不同RF路径的节点同时使用相同频率。
Project areas may include waveguide components subassemblies used in the RF path between a microwave transceiver the antenna, such as diplexers, filters couplers.
项目范围可能包括用在微波收发器和天线间通道的波导管组合件和部件，比如双工器、滤波器和耦合器；
In addition to squelching the RF signal path, a ramp output of the transceiver may further be disabled during the predetermined portion.
除了抑制射频信号路径之外，还可以在预定义时段中禁用收发信机的斜坡输出。
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