DEVICE AND METHOD FOR EVALUATING ANTENNA

摘要

A transmitting signal from a signal generator (22a) is divided in seven transmitting signals in a divider (12a), and the phase and the amplitude of each of divided transmitting signals are changed in a phase shifter circuit (13a) and an attenuator circuit (14a). The respective transmitting signals from the attenuator circuit (14a) are radiated from scatterer antennas (50a-1 to 50a-7). A receiver (21a) receives a multiple wave of radiated radio waves by using a receiving antenna (60a). A computer (10) substantially simultaneously starts operations of a D/A converter (11a), the signal generator (22a), and the receiver (21a) by using a trigger generator circuit (70).