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Ionospheric effects to antenna impedanceThe reciprocity between high power satellite antennas and the surrounding plasma are examined. The relevant plasma states for antenna impedance calculations are presented and plasma models, and hydrodynamic and kinetic theory, are discussed. A theory from which a variation in antenna impedance with regard to the radiated power can be calculated for a frequency range well above the plasma resonance frequency is give. The theory can include photo and secondary emission effects in antenna impedance calculations.
Document ID
19860012256
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Bethke, K. H. (NASA Headquarters Washington, DC United States)
Date Acquired
September 5, 2013
Publication Date
January 1, 1986
Subject Category
Communications And Radar
Report/Patent Number
NASA-TM-77956
NAS 1.15:77956
BMFT-FB-W-84-052
Accession Number
86N21727
Funding Number(s)
CONTRACT_GRANT: NASW-4004
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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