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屏蔽吸波材料
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射频特性

Reflectivity : capability of absorbers to lower the level of reflected EM waves.

     反射性能:吸波材料降低反射电磁波的能力

Reflectivity = (Reflected power) / (Forward power) (dB)

    反射性能 =  反射功率/ 前向功率

Values < 0

RF properties

射频特性

Range of frequencies : 30 MHz – 40 GHz (50 GHz)

频率范围:30 MHz – 40 GHz (50 GHz)


Two different setups 两种不同的测试方法

A test setup to characterize the absorbers

from 30 MHz to 1 GHz

Coaxial line

            30 MHz to 1 GHz的频率使用同轴线测试法

2nd procedure : test the absorbers performances to microwaves 1 GHz to 40 GHz (50 GHz)

Full-anechoic chamber with NRL Arch method

            1GHz 到 40GHz 使用全电波暗室测试法