Physical Multi-Layer Phantoms for Intra-Body Communications

TL;DR

This paper introduces a methodology for creating customizable, multi-layer tissue-mimicking phantoms with specific electrical properties for intra-body communication research, enabling repeatable testing of Body Area Networks.

Contribution

It provides the first comprehensive guidance on ingredient concentrations and electrical property matching for multi-layer phantoms in intra-body communication studies.

Findings

Validated the electrical properties of various material compositions

Demonstrated the effectiveness of the multi-layer phantom in experimental BAN testing

Provided a systematic approach for phantom customization based on frequency range

Abstract

This paper presents approaches to creating tissue mimicking materials that can be used as phantoms for evaluating the performance of Body Area Networks (BAN). The main goal of the paper is to describe a methodology to create a repeatable experimental BAN platform that can be customized depending on the BAN scenario under test. Comparisons between different material compositions and percentages are shown, along with the resulting electrical properties of each mixture over the frequency range of interest for intra-body communications; 100 KHz to 100 MHz. Test results on a composite multi-layer sample are presented confirming the efficacy of the proposed methodology. To date, this is the first paper that provides guidance on how to decide on concentration levels of ingredients, depending on the exact frequency range of operation, and the desired matched electrical characteristics (conductivity vs. permittivity), to create multi-layer phantoms for intra-body communication applications.