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Modified Dual Segment Rectangular Dielectric Resonator Antenna Terminated in a Bio-Medium

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Author(s): Ravi Kumar Gangwar | Surya Pal Singh | Devendra Kumar

Journal: International Journal of Communications, Network and System Sciences
ISSN 1913-3715

Volume: 04;
Issue: 06;
Start page: 377;
Date: 2011;
Original page

Keywords: Modified DSRDRA | SAR | WiMAX band | Radiation Pattern

ABSTRACT
In this paper, the simulation studies of the radiation characteristics of modified dual segment rectangular dielectric resonator antenna (DSRDRA) in free space and in presence of bio-medium alongwith the absorbed power distribution in a homogenous bio-medium (muscle layer) in direct contact with the proposed antenna are reported at different WiMAX band frequencies. The specific absorption rate (SAR) distributions in muscle layer for different antenna-to-muscle layer spacings are also presented at resonant frequency of antenna in WiMAX bands. The results of return loss, input VSWR and radiation characteristics of proposed antenna in bio-medium are also compared with results in free space. The simulation study has been carried out using CST Microwave Studio software.
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