# Chua Mem-Components for Adaptive RF Metamaterials

## TL;DR

This paper introduces a new adaptive reactive element based on Chua's mem-components, using a polymer with reversible photochemical isomerization to enable tunable electromagnetic metasurfaces.

## Contribution

It presents a novel memcapacitor/meminductor design utilizing a polymer for adaptive RF metamaterials, along with a methodology for their integration.

## Key findings

- Reversible trans-cis isomerization changes plate distance by up to 25%
- Proposed design enables adaptive manipulation of EM waves
- Methodology facilitates integration into metasurfaces

## Abstract

Chua's mem-components are ideal for creating adaptive metasurfaces for manipulating EM waves given that they hold their state without external biases. In this paper, we propose a generic adaptive reactive element that is in fact a memcapacitor/meminductor. This element makes use of a polymer that demonstrates reversible trans-cis photochemical isomerization, thus making it possible to change the distance between two conductive plates by up to 25%. Furthermore, a design methodology for utilizing these devices is presented.

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Source: https://tomesphere.com/paper/1907.11137