Waveform-Selective Mantle Cloaks for Intelligent Antennas

TL;DR

This paper introduces a waveform-selective cloaking metasurface for antennas that can dynamically hide or reveal itself based on the waveform of signals, enabling intelligent, adaptive electromagnetic behavior.

Contribution

It presents a novel antenna design with a metasurface that selectively scatters signals depending on waveform type, advancing adaptive cloaking technology.

Findings

Antenna can switch scattering behavior between pulsed and continuous waves

The metasurface uses a meander-like unit cell with lumped-element circuit

Demonstrates potential for intelligent, environment-aware antenna systems

Abstract

We present the design of an innovative wire antenna able to automatically hide or reveal its presence depending on the waveform of the received/transmitted signal. This unconventional behavior is achieved through the use of a novel waveform-selective cloaking metasurface exploiting a meander-like unit cell loaded with a lumped-element circuit capable to engineer the scattering of the antenna depending on the waveform of the impinging signal. Due to the time-domain response of the lumped-element circuit, the antenna is able switching its scattering behavior when interacts with either a pulsed wave (PW) or a continuous wave (CW) signal. The proposed configuration paves the way to a new generation of cloaking devices for intelligent antenna systems, extending the concept of antenna as a device capable to sense the external environment and change its electromagnetic behavior accordingly.