首先介绍了左手材料的基本概念，左手材料在微波频段的实现方法。
First, the concept of LHM and the methods to realize it in microwave frequency band are introduced.
应答接收机误码测试系统是在微波频段测试接收机误码率的测试设备。
The error code rate test system of answer receiver is used for testing error rate of testing receiver at microwave band.
微波技术问世已经半个多世纪，它是在微波频段通过地面视距进行信息传播的一种无线传输手段。
Microwave technology has exited for over half of the century. It transmits the information by ground visual distance in microwave frequency band. It is a kind of wireless transmission technology.
就高空平台通信与卫星和地面微波通信在C频段的共存问题试作探讨。
The studies on HAPS system sharing C-band with satellite and terrestrial systems are also discussed.
在微波暗室静区反射电平计算时常采用点源发射模型模拟天线的特性，它适用于低频段或方向性差的天线。
In calculation of reflected level of quiet zone in anechoic chamber, a spot emission model is often used to simulate antennas characteristic.
在无线通信系统中，光频段与微波以下的射频频段相比，具有传输容量大、不易受到干扰等特殊的优点。
In wireless communication systems, comparing with traditional radio bands, optical bands has the advantage of high transmission capacity and interference resistance.
因此建立微波频段电感电容的等效电路模型，提取模型参数，对于实现元件值在电路中的有效控制，以及整个电路性能的把握具有重要意义。
Therefore, the establishment of LC equivalent circuit model and extracting the model parameters are very important for the control of the component values and the circuit performance.
因此建立微波频段电感电容的等效电路模型，提取模型参数，对于实现元件值在电路中的有效控制，以及整个电路性能的把握具有重要意义。
Therefore, the establishment of LC equivalent circuit model and extracting the model parameters are very important for the control of the component values and the circuit performance.
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