单位面积阻抗
In addition, it is reliable to put the circuit into practice. The device mainly consists of integrated phase-shift trigger unit, detection unit, amplification and impedance conversion unit, the smallest excitation limitation unit, reactive regulation unit and three-phase controlled bridge rectifier.
本装置主要包括集成移相触发单元、检测单元、放大及阻抗变换单元、最小励磁限制单元、无功调查单元和三相全控桥。
According to requirements of engineering design, antenna efficiency and broadband impedance match network, conical antenna is defined as unit antenna after comparing the electric apparatus and element forms of cage antenna and conical antenna.
从工程设计角度出发,根据天线效率和宽带阻抗匹配网络要求,在比较笼形和锥形两种天线的电气和结构性能之后,确定锥形天线为单元天线。
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