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http://hdl.handle.net/2183/40581 Direct Antenna FSK Modulation with Time Modulated Arrays
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R. Maneiro-Catoira, J. Brégains, J. A. García-Naya and L. Castedo, "Direct Antenna FSK Modulation with Time Modulated Arrays," 2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI), Denver, CO, USA, 2022, pp. 1618-1619, doi: 10.1109/AP-S/USNC-URSI47032.2022.9886941.
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[Abstract]: An innovative time-modulated array (TMA) approach capable of simultaneously performing direct antenna frequency-shift keying (FSK) modulation and beam steering (BS) is proposed. Conventional binary FSK (BFSK) modulators are based on the commutation of two carriers and, to perform BS, a standard phased array with variable phase shifters (VPSs) is needed. Alternatively, the proposed TMA approach jointly performs BFSK modulation by transmitting each symbol over a different harmonic frequency, and BS by adjusting the on-off instants of the periodic binary sequences which control low-complexity 2-bit VPSs.
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This version of the paper has been accepted for publication. The final published paper is available online at: https://doi.org/10.1109/AP-S/USNC-URSI47032.2022.9886941 .
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