Improvements to parameter extraction techniques for FDTD simulations of handset antennas

M. Celuch-Marcysiak , Maciej Sypniewski , W.K. Gwarek


Improved techniques for the extraction of return loss and antenna efficiency from FDTD simulations of hand-held transceivers have been proposed. The key point for both techniques resides in using a new scheme of antenna excitation via a 3D model of a thin TEM line, terminated with a template source. This permits one to extract the return loss within the line by the differential method previously developed and well tested for S-parameter analysis in microwave circuits, and now enhanced with TEM template filtering. Another advantage of applying the template source is that it provides accurate control of power delivered to the antenna. The radiation efficiency can then be calculated directly, without the need to integrate dissipated power over the whole computational domain. Depending on the problem complexity, this reduces the computing time by up to a factor of two, and at the same time ensures the 0.8 \% accuracy even for the discretization of 10 cells per wavelength
Author M. Celuch-Marcysiak
M. Celuch-Marcysiak,,
, Maciej Sypniewski RE
Maciej Sypniewski,,
- The Institute of Radioelectronics
, W.K. Gwarek
W.K. Gwarek,,
Pages550-553 vol.1
Book IEEE Antennas and Propagation Society International Symposium, 1998, vol. 1, 1998
Keywords in English3D model, antenna efficiency, antenna excitation, antenna radiation patterns, Circuit analysis, circuit testing, computational complexity, computing time reduction, differential method, digital simulation, FDTD simulations, finite difference methods, finite difference time-domain analysis, hand-held transceivers, handset antennas, losses, microwave circuits, microwave filters, Microwave theory and techniques, mobile antennas, parameter extraction, parameter extraction techniques, power control, radiation efficiency, return loss, Scattering parameters, S-parameter analysis, S-parameters, telephone sets, template source, TEM template filtering, thin TEM line, Time domain analysis, transceivers
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Citation count*1 (2015-04-24)
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