reflection meter
1.The variation of dB magnitude attenuation and phase delay of reflection is uniformly proportional to distance along the line toward the direction of reflection, where the phase delay is 360 degree per wave length, the dB attenuation per meter is twice the one way dB attenuation per meter of forward or backward wave.
2.The paper adopts the theories of electromagnetic propagation, wave reflection to discuss the performance evaluation method of a new-type electromagnetic compatibility (EMC) measurement environment — a 5-meter anechoic chamber in the entire work frequency bands (30MHz ~1000MHz) with the focus of its key parameter - normalized site attenuation (NSA) evaluations and analyses with the application of Ray Tracing Method and FDTD method at the corresponding frequency bands.
