Finite Difference Time Domain Simulations of an Impedance Probe

Details Finite Difference Time Domain Simulations of an Impedance Probe Finite Difference Time Domain Simulations of an Impedance Probe

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agufmsa52a0414w&link_type=abstract

American Geophysical Union, Fall Meeting 2002, abstract #SA52A-0414

Physics

2494 Instruments And Techniques

Scientific paper

The electrical impedance of an antenna in space plasma is an important but difficult problem. Utah State University has developed a Plasma Fluid Finite Difference Time Domain (PF-FDTD) model to simulate an antenna in magnetized space plasma. This simulation tool, based on the five moment Maxwellian plasma fluid equations, allows the impedance of a complex antenna structure to be determined. This paper will cover recent improvements made to the PF-FDTD model and simulation validation efforts. The PF-FDTD model is used to map variations in the input impedance of a microstrip patch antenna to changes in the plasma density, collision frequency, and magnetic field. This work is leading to the development of a new, compact, non-deployable RF plasma impedance probe.

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