TY - GEN
T1 - Space-Time Modulated Loaded-Wire Metagratings for Magnetless Nonreciprocity
AU - Hadad, Yakir
N1 - Publisher Copyright:
© 2020 EurAAP.
PY - 2020/3
Y1 - 2020/3
N2 - We show that spatiotemporally modulated metagratings can lead to strong nonreciprocal responses, despite the fact that they are based on electrically-large unit cells and use only three modulation domains. We specifically focus on wire metagratings loaded with time-modulated capacitances. We use the discrete-dipole-approximation and an ad-hoc generalization of the theory of polarizability for time-modulated particles, and demonstrate an effective nonreciprocal anomalous reflection (diffraction) with an efficient frequency conversion.
AB - We show that spatiotemporally modulated metagratings can lead to strong nonreciprocal responses, despite the fact that they are based on electrically-large unit cells and use only three modulation domains. We specifically focus on wire metagratings loaded with time-modulated capacitances. We use the discrete-dipole-approximation and an ad-hoc generalization of the theory of polarizability for time-modulated particles, and demonstrate an effective nonreciprocal anomalous reflection (diffraction) with an efficient frequency conversion.
KW - Metagratings
KW - nonreciprocity
KW - spatiotemporal modulation
UR - http://www.scopus.com/inward/record.url?scp=85088639688&partnerID=8YFLogxK
U2 - 10.23919/EuCAP48036.2020.9135998
DO - 10.23919/EuCAP48036.2020.9135998
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AN - SCOPUS:85088639688
T3 - 14th European Conference on Antennas and Propagation, EuCAP 2020
BT - 14th European Conference on Antennas and Propagation, EuCAP 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 14th European Conference on Antennas and Propagation, EuCAP 2020
Y2 - 15 March 2020 through 20 March 2020
ER -