124 citations · 338 across the 6 of their papers we have counts for
7 papers
Magnetless Circulators Based on Synthetic Angular-Momentum Bias: Recent Advances and Applications
Ahmed Kord, Andrea Alu
In this paper, we discuss recent progress in magnet-free non-reciprocal structures based on a synthetic form of angular momentum bias imparted via spatiotemporal modulation. We dis…
Highly-Linear Magnet-Free Microelectromechanical Circulators
Yao Yu, Giuseppe Michetti, Ahmed Kord +6
This paper reports the first demonstration of a magnet-free, high performance microelectromechanical system (MEMS) based circulator. An innovative circuit based on the commutation…
Radio Frequency Magnet-free Circulators Based on Spatiotemporal Modulation of Surface Acoustic Wave Filters
Yao Yu, Giuseppe Michetti, Michele Pirro +6
In this paper, a new generation of magnet-free circulators with high performance is proposed. Circulators are crucial devices in modern communication systems due to their ability t…
CMOS Integrated Magnetless Circulators Based on Spatiotemporal Modulation Angular-Momentum Biasing
Ahmed Kord, Mykhailo Tymchenko, Dimitrios Sounas +2
In this paper, we introduce the first integrated circuit (IC) implementation of spatiotemporally modulated angular-momentum (STM-AM) biased magnetless circulators. The design is ba…
Broadband Cyclic-Symmetric Magnet-less Circulators and Theoretical Bounds on their Bandwidth
Ahmed Kord, Dimitrios L. Sounas, Zhicheng Xiao +1
In this paper, we explore theoretically and experimentally broadband spatiotemporally modulated (STM) magnet-less circulators realized by combining three-port non-reciprocal juncti…
Pseudo-Linear Time-Invariant Magnetless Circulators Based on Differential Spatiotemporal Modulation of Resonant Junctions
Ahmed Kord, Dimitrios L. Sounas, Andrea Alù
In this paper, we present voltage- and current-mode differential magnetless non-reciprocal devices obtained by pairing two single-ended (SE) circulators, each consisting of three f…
Magnetless Circulators Based on Spatiotemporal Modulation of Bandstop Filters in a Delta Topology
Ahmed Kord, Dimitrios L. Sounas, Andrea Alù
In this paper, we discuss the design rationale and guidelines to build magnet-less circulators based on spatio-temporal modulation of resonant junctions consisting of first-order b…