Properties and Performance Verification on Magnetite Polydimethylsiloxane Graphene Array Microwave Sensor

Author:

Jamlos Mohd Aminudin,Jamlos Mohd Faizal,Alias Azri,Karim Mohamad Shaiful AbdulORCID,Mustafa Wan AzaniORCID,Akkaraekthalin Prayoot

Abstract

This paper investigates the use of a Magnetite Polydimethylsiloxane (PDMS) Graphene array sensor in ultra-wide band (UWB) spectrum for microwave imaging applications operated within 4.0–8.0 GHz. The proposed array microwave sensor comprises a Graphene array radiating patch, as well as ground and transmission lines with a substrate of Magnetite PDMS-Ferrite, which is fed by 50 Ω coaxial ports. The Magnetite PDMS substrate associated with low permittivity and low loss tangent realized bandwidth enhancement and the high conductivity of graphene, contributing to a high gain of the UWB array antenna. The combination of 30% (ferrite) and 70% (PDMS) as the sensor’s substrate resulted in low permittivity as well as a low loss tangent of 2.6 and 0.01, respectively. The sensor radiated within the UWB band frequency of 2.2–11.2 (GHz) with great energy emitted in the range of 3.5–15.7 dB. Maximum energy of 15.7 dB with 90 × 45 (mm) in small size realized the integration of the sensor for a microwave detection system. The material components of sensor could be implemented for solar panel.

Funder

King Mongkut's University of Technology North Bangkok

Publisher

MDPI AG

Subject

Polymers and Plastics,General Chemistry

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