Patent ID: 8779994
Filing Date: 2014-07-15
Classification: G01R

Abstract:
1. An antenna evaluating apparatus comprising: a plurality of N scatterer antennas provided at predetermined positions different from each other, respectively; a signal generator for generating a predetermined transmitting signal; a transmitter for dividing the transmitting signal into a plurality of N transmitting signals, changing at least one of a phase and an amplitude of each of divided transmitting signals, and radiating changed transmitting signals as radio waves from the scatterer antennas corresponding to the changed transmitting signals, respectively; a receiver for receiving a multiple wave of radiated radio waves by using a receiving antenna to be evaluated and placed substantially at a center of the respective positions; and a controller for performing substantially simultaneous starting operations of an evaluation circuit including the signal generator, the transmitter and the receiver, and evaluating a performance of the receiving antenna based on a received multiple wave, wherein the controller performs substantially simultaneous stopping operations of the signal generator and the receiver excluding the transmitter.