Measured antenna response of a proposed microwave tomography system using an efficient 3-D FDTD model

S. K. Padhi; A. Fhager; M. Persson; J. Howard

doi:10.1109/LAWP.2008.2009888

Measured antenna response of a proposed microwave tomography system using an efficient 3-D FDTD model

S. K. Padhi, A. Fhager, M. Persson, J. Howard

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

This letter presents a detailed study of a microwave tomography system using 3-D finite-difference time-domain methods (FDTDs). The algorithm, which uses a subcell model in form of the thin-wire approximation to model wire antennas, has been validated numerically using published numerical electromagnetic code (NEC) data for dipole antennas, and experimentally by comparing with measurements obtained for a monopole antenna array. The agreement between calculated and measured performances of the monopoles is close. In order to understand the fabrication tolerance, a parametric study was performed with regards to position of ground plane and grid size. It is found that the ground plane plays an important role in the performance of the monopole antennas. The excellent agreement is very promising for future deployment of the algorithm in 3-D microwave tomography applications.

Original language	English
Article number	2009888
Pages (from-to)	689-692
Number of pages	4
Journal	IEEE Antennas and Wireless Propagation Letters
Volume	7
DOIs	https://doi.org/10.1109/LAWP.2008.2009888
Publication status	Published - 2008

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10.1109/LAWP.2008.2009888

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title = "Measured antenna response of a proposed microwave tomography system using an efficient 3-D FDTD model",

abstract = "This letter presents a detailed study of a microwave tomography system using 3-D finite-difference time-domain methods (FDTDs). The algorithm, which uses a subcell model in form of the thin-wire approximation to model wire antennas, has been validated numerically using published numerical electromagnetic code (NEC) data for dipole antennas, and experimentally by comparing with measurements obtained for a monopole antenna array. The agreement between calculated and measured performances of the monopoles is close. In order to understand the fabrication tolerance, a parametric study was performed with regards to position of ground plane and grid size. It is found that the ground plane plays an important role in the performance of the monopole antennas. The excellent agreement is very promising for future deployment of the algorithm in 3-D microwave tomography applications.",

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AU - Fhager, A.

AU - Persson, M.

AU - Howard, J.

PY - 2008

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AB - This letter presents a detailed study of a microwave tomography system using 3-D finite-difference time-domain methods (FDTDs). The algorithm, which uses a subcell model in form of the thin-wire approximation to model wire antennas, has been validated numerically using published numerical electromagnetic code (NEC) data for dipole antennas, and experimentally by comparing with measurements obtained for a monopole antenna array. The agreement between calculated and measured performances of the monopoles is close. In order to understand the fabrication tolerance, a parametric study was performed with regards to position of ground plane and grid size. It is found that the ground plane plays an important role in the performance of the monopole antennas. The excellent agreement is very promising for future deployment of the algorithm in 3-D microwave tomography applications.

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JO - IEEE Antennas and Wireless Propagation Letters

JF - IEEE Antennas and Wireless Propagation Letters

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Measured antenna response of a proposed microwave tomography system using an efficient 3-D FDTD model

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