This paper introduces the use of Time-modulated array methods to realize a dual function array. It is able to do a radar function in the mainlobe, while realizing a communication in the side lobe.

International audienceThis letter investigates sparse time-modulated arrays (STMAs). It shows that they provide an efficient solution to achieve specified radiation patterns in radar application with a reduced number of bits to code the weighting coefficients. Interference rejection is also demonstrated

International audienceA Time Modulated Array based technique is used to simultaneously do a radar function in the main lobe and a communication function in the side lobes. It uses an averaging to do the radar function, while the communication is done with the variation from an intermediary pattern to another. A 12-antenna array is shown with a stable main lobe for radar application and a variation of the magnitude of the side lobes to perform an Amplitude Modulation at 55° from the main lobe

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International audienceA Time Modulated Array (TMA) based technique is used to simultaneously do a radar function in the main lobe and a communication function in the side lobes. It uses an averaging to do the radar function, while the communication is done with the variation from an intermediary pattern to another. An optimization of the secondary function (communication) is carried out. The QAM communication is optimized for the case of STMA. © 2016 IEEE