Dielectric Characterisation Of Body Phantoms Using Microstrip Line Coupled Complementary Split Ring Resonators

Abstract

This paper presents compact and cost effective dual slotted microstrip line open complementary split ring resonator (CSRR). The proposed design has two sample slots electrically coupled resonator rings and microstrip transmission line operating at ISM band. To characterise the sample under test, a glass capillary tube with an inner diameter of 7mm is inserted into the sample slot of the sensor. To begin, various low-cost phantoms are developed using readily available ingredients. The various developed samples, such as skin, fat, blood, and muscle phantoms, are placed inside the capillary tube and their dielectric characterization is done using shifted resonant peaks. Difference between evaluated and reference electrical permittivity of different samples is less than 5% making the proposed design convenient for mentioned application.