Open AccessDirect Antenna Frequency-Hopped M-FSK Modulation With Time-Modulated Arrays
Author(s) -
Roberto Maneiro-Catoira,
Julio Bregains,
Jose A. Garcia-Naya,
Luis Castedo
Publication year - 2023
Publication title -
ieee antennas and wireless propagation letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.328
H-Index - 117
eISSN - 1548-5757
pISSN - 1536-1225
DOI - 10.1109/lawp.2023.3330435
Subject(s) - fields, waves and electromagnetics
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.