Self-Shielded Topological Receiver Protectors

Abstract

Receiver protectors (RPs) shield sensitive electronics from high-power incoming signals that might damage them. Typical RP schemes range from simple fusing and PIN diodes, to superconducting circuits and plasma cells - each having a variety of drawbacks ranging from unacceptable system downtime and self-destruction to significant insertion losses and power consumption. Here, we theoretically propose and experimentally demonstrate a unique self-shielding RP based on a coupled-resonator-microwave-waveguide (CRMW) with a topological defect being inductively coupled to a diode. This RP utilizes a charge-conjugation (C) symmetric resonant defect mode that is robust against disorder and demonstrates high transmittance at low incident powers. When incident power exceeds a critical value, a self-induced resonant trapping effect occurs leading to a dramatic suppression of transmittance and a simultaneous increase of the reflectance close to unity. The proposed RP device is self-protected from overheating and electrical breakdown and can be utilized in radars, reflection altimeters, and a broad range of communication systems.

arXiv comment9 pages, 4 figures

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Cited by in corpus (8)

• Observation of supersymmetric pseudo-Landau levels in strained microwave graphene
• Towards a Broad-Band Coherent Perfect Absorption in systems without Scale-Invariance
• Non-Hermitian CT-Symmetric Spectral Protection of Nonlinear Defect Modes
• Optical Limiter Based on PT-Symmetry Breaking of Reflectionless Modes
• Transport effects in non-Hermitian nonreciprocal systems: General approach
• Detecting and Focusing on a Nonlinear Target in a Complex Medium
• Robust incoherent perfect absorption
• Signature of edge states in resonant wave scattering