Patent ID: 6771698
Filing Date: 2004-08-03
Classification: G01R,H04B

Abstract:
A system for testing an antenna comprising:a signal generator for generating an antenna test signal at a selected frequency; a spread spectrum modulator for modulating the antenna test signal to produce a broad band spread spectrum antenna test signal; a calibrated test antenna connected to the spread spectrum modulator for transmitting in reciprocity the broad band spread spectrum antenna test signal; an antenna-under-test for receiving in reciprocity the broad band spread spectrum antenna test signal from the calibrated test antenna; a receiver connected to the antenna-under-test for receiving the broad band spread spectrum antenna test signal and further comprising: a demodulator for demodulating the broad band spread spectrum antenna test signal; a decorrelator for decorrelating any signals generated by any reflections or interference that are not synchronized with the antenna test signal; and means for measuring the gain of the antenna-under-test from the antenna test signal.