Patent ID: 6323806
Filing Date: 2001-11-27
Classification: G01S,H01Q

Abstract:
Antenna installation for suppressing a jammer, comprising:an onmi-directional main antenna configured to receive main reception signals from a transmitter sending a transmitter signal at a predetermined minimum level and a jamming signal from the jammer;a first auxiliary antenna configured to receive first auxiliary reception signals including the transmitter signal and the jammer signal;a second auxiliary antenna arranged and configured to receive second auxiliary reception signals including the transmitter signal and the jammer signal; anda signal processing mechanism configured to adjust amplitudes and phases of the reception signals from the first auxiliary antenna, to adjust amplitudes and phases of the reception signals from the second auxiliary antennae, and to combine together an adjusted reception signal from the first auxiliary antenna, an adjusted reception signal from the second auxiliary antenna and the reception signal from the main antenna to produce a minimum of the jamming signal without inhibiting reception of the transmitter signal and so that the adjusted reception signals from the first and second auxiliary antennae jointly suppress the jamming signal in the reception signal from the main antenna.