Spiral antenna irradiation into lossy media with Debye dispersion

This paper presents the analysis of single arm Archimedean spiral antennas radiating into a lossy medium (i.e. water) characterized by Debye dispersion. Conformal Finite Difference Time Domain (CFDTD) method is used for simulation. The error due to the staircase approximation of FDTD mesh is remedie...

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Bibliographic Details
Main Authors: Tofighi, M.-R., Sunal, A.
Format: Conference Proceeding
Language:English
Subjects:
Biomedical monitoring
Conformal FDTD
Debye Dispersion
Dispersion
Electromagnetic heating
Finite difference methods
Hyperthermia
Medical Antennas
Microstrip antennas
Microwave radiometry
Spiral Antenna
Spirals
Temperature sensors
Time domain analysis
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Summary:This paper presents the analysis of single arm Archimedean spiral antennas radiating into a lossy medium (i.e. water) characterized by Debye dispersion. Conformal Finite Difference Time Domain (CFDTD) method is used for simulation. The error due to the staircase approximation of FDTD mesh is remedied by using CFDTD algorithm. The reflection coefficient simulation result with Debye dispersion is presented and compared with the measurement. CFDTD was also applied to analyze spiral antennas' near-field beam (SAR) in the water medium.
ISSN:2164-2958
2164-2974
DOI:10.1109/RWS.2008.4463491