When current flows through a conductor, a magnetic field is formed around the conductor.
通有电流的导体在其周围会产生磁场。
The coaxial probe feed of a printed antenna formed by extending the inner conductor of a coaxial line is a relatively simple feeding model.
利用同轴内导体延伸作为探针对印刷天线进行直接馈电是一种易于实现的馈电方式。
A poor conductor of heat and electricity . Not easily formed into shapes.
非金属是差的导热和导电体.
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