Direct Antenna Frequency-Hopped M-FSK Modulation With Time-Modulated Arrays
arXiv:2402.03194 · doi:10.1109/LAWP.2023.3330435
Abstract
We present an innovative approach that simultaneously enables direct antenna frequency-hopped M-ary frequency shift keying (DAFH-MFSK) modulation and beamsteering through the use of time-modulated arrays (TMAs). The distinctive feature of our approach lies in the modulation of the TMA excitations with binary periodic sequences, which can be easily frequency-adjusted and time-delayed to simultaneously allow for DAFH-MFSK direct antenna modulation and beamsteering. Notably, our TMA proposal offers a distinct advantage over conventional architectures in terms of performance metrics, including reduced insertion losses and enhanced phase resolution for beamsteering, while also simplifying hardware complexity.
5 pages, 7 figures, published in IEEE Antennas and Wireless Propagation Letters as open access article