Magnetless Circulators Based on Synthetic Angular-Momentum Bias: Recent Advances and Applications
arXiv:2012.03164 · doi:10.1109/MAP.2020.3043437
Abstract
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 discuss how such components can support metrics of performance comparable with traditional magnetic-biased ferrite devices, while at the same time offering distinct advantages in terms of reduced size, weight, and cost due to the elimination of magnetic bias. We further provide an outlook on potential applications and future directions based on these components, ranging from wireless full-duplex communications to metasurfaces and topological insulators.
References in corpus (6)
- Topological Photonics
- Inverse-designed photonic circuits for fully passive, bias-free Kerr-based nonreciprocal transmission and routing
- Noiseless nonreciprocity in a parametric active device
- Nonreciprocal microwave signal processing with a Field-Programmable Josephson Amplifier
- CMOS Integrated Magnetless Circulators Based on Spatiotemporal Modulation Angular-Momentum Biasing
- Radio Frequency Magnet-free Circulators Based on Spatiotemporal Modulation of Surface Acoustic Wave Filters