发明授权
US08730112B2 Antenna evaluation apparatus and antenna evaluation method for creating multipath waves around receiving antenna 有权
用于在接收天线周围产生多径波的天线评估装置和天线评估方法

Antenna evaluation apparatus and antenna evaluation method for creating multipath waves around receiving antenna
摘要:
An antenna evaluation apparatus includes receiving antennas to be evaluated, scatterer antennas provided around them, signal generators, delay circuits, dividers, phase-shift circuits, and attenuation circuits. A computer controls the delay circuits to add delay times to radio frequency signals, and controls the phase-shift circuits and attenuation circuits to change phases and amplitudes of the radio frequency signals to produce a first fading. The antenna evaluation apparatus radiates the radio frequency signals from the scatterer antennas, thus creating multipath waves including delay and fading around the receiving antenna.
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