Patent ID: 9325403
Filing Date: 2016-04-26
CPC Classification: H01Q,H04B

Claim Text:
1. A system for retro-transmitting signals, wherein said system is configured to transmit signals back, simultaneously, towards one or more transmitting sources, the system comprising two or more mutually synchronized antennas and two or more corresponding communication units, each communication unit of each respective synchronized antenna comprising: a receiver for receiving a signal from its corresponding antenna; an analog-to-digital unit, synchronized with analog-to-digital units of the other communication units, and configured to sample the received signal for a defined period of time in a synchronous manner; a digital memory unit for storing the signal samples of said received signal in their given sampling order; a processing unit configured and operable to invert the sampling order of a sub-group of signal samples sampled within said defined period of time to form inverted samples of said sub-group and store the inverted samples in said digital memory unit, such that said inverted samples when transmitted simultaneously together with inverted samples of other communication units associated with said mutually synchronized antennas, reconstruct a retro-transmission signal transmitted back to said one or more sources; and a digital-to-analog unit connectable to a transmitter unit of said respective synchronized antenna adapted to convert the inverted samples into an analog transmission signal, to be transmitted in synchronization with analog transmission signals associated with digital-to-analog units of the other communication units, thereby enabling said system to retro-transmit wideband signals towards said one or more transmitting sources.