Patent ID: 6266021
Filing Date: 2001-07-24
Classification: G01R,H04B

Abstract:
A method of testing an antenna having a receiving band of frequencies, a first circuit being in electrical communication with the antenna, a second circuit bypassing a portion of the first circuit, the method comprising:transmitting a signal on the first circuit toward the antenna, the signal being within the receiving band of frequencies for the antenna;transmitting the signal to the second circuit;transmitting the signal from the second circuit back to the first circuit for transmission to the antenna, thereby bypassing a portion of the first circuit, wherein the gain of the signal transmitted along the second circuit is a predetermined level;wherein the gain of the signal transmitted along the second circuit is approximately equal and opposite to the gain of the bypassed portion of the first circuit;returning the signal along the first circuit wherein the net gain of the signal from the bypassed portion of the first circuit and the second circuit is approximately unity; andfiltering the signal as is transmitted along the bypassed portion of the first circuit.