may be used to transmit two signals at two different frequencies further a receive signal and two spectrally separated transmission signals can be used where three different beam angles can be provided by the antenna array 315 corresponding to the three signals the number of simultaneous beam angles requires a corresponding number of phase shifters and frequency selective components providing the same number of frequency channels fig4 is a block diagram of a system used to provide the transmit beam 320 and receive beam 325 an antenna assembly 405 includes an antenna element 210 frequency selective component 410 receive weighting structure 415 e g phase shifter and transmit weighting structure 420 the weighting structures 415 420 are controlled by respective control signals 20 425 435 the receive weighting structure 415 supports a receive signal 430 and the transmit weighting structure 420 supports a transmit signal 440 the antenna assembly 405 is one of n number of antenna assemblies 405 that compose the antenna array 315 fig3 the number of weighting structures 415 420 in each antenna assembly 405 determines the number of beams that may be simultaneously generated at different angles and or patterns by the antenna array 315 the frequency selective component 410 provides discrimination between signals at different frequencies preferably the frequency selective component 410 provides passive means for splitting the signals at different frequencies so as to minimize the power required by the antenna assembly 405 independent control of the weighting structures 415 420 is provided by the controller 445 which generates the receive control signals 425 and transmit control signals 435 the controller 445 may include the intelligence to provide the angle and or pattern for the transmit beam 320 and receive beam 325 fig3.