Antenna measurements in time domain
Antenna measurements in time domain
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时域天线测量
DOI：
10.1109/aps.1996.549664
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发表时间：
1996
期刊：
影响因子：
--
通讯作者：
D. Ponomarev
中科院分区：
文献类型：
--
作者：
B. Levitas;D. Ponomarev
传统的天线系统调查方法（特别是在宽频率范围内）使用谐波信号需要大量的时间和设备的参与。基于皮秒持续时间电磁脉冲的时间脉冲方法的应用是一个有前景的趋势。时域方法实现提供了各种宽频率范围天线（特性而不使用昂贵的）消声室的高质量测量。天线系统特性测量过程是基于电磁脉冲场对被测天线的激励。由于电磁场脉冲的性质及其在空间中的位置，可以考虑地面反射（下伏）表面和材料吸收电磁辐射的能力。在这种情况下，有必要通过加权函数（“时间窗口”）对在调查天线输出处登记的信号进行时间选择。
Traditional method of antenna system investigation (in a broad frequency range in particular) using harmonic signals require considerable time and equipment engagement. A perspective trend is the application of time-pulse methods based on the usage of picosecond duration electromagnetic pulses. The time domain method implementation provides high grade measurements of various broad frequency range antenna (characteristics without using expensive) anechoic chambers. The antenna system characteristic measurement process is based on the excitation of antenna under investigation by an electromagnetic pulse field. Due to electromagnetic field pulse nature and its location in space it is possible to take in to consideration the ground reflecting (underlying) surface and the material capability to absorb electromagnetic radiation. In this case it is necessary to carry out the time selection of signals registered at the investigation antenna output by means of a weighting function ("time window").