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Effects of mutual coupling in the design of high‐performance multifeed satellite antennas
Author(s) -
Newell Peter,
Bird Trevor S.
Publication year - 1994
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/93rs02503
Subject(s) - coupling (piping) , satellite , directional antenna , high gain antenna , communications satellite , excitation , beam (structure) , french horn , physics , horn antenna , topology (electrical circuits) , computer science , acoustics , telecommunications , antenna (radio) , optics , electrical engineering , slot antenna , materials science , engineering , metallurgy , quantum mechanics , astronomy
Predicted and measured results are presented for the effect of mutual coupling on the performance of shaped beam antennas having feed clusters that are irregular arrays of closely shaped small rectangular horn elements. The effects of mutual coupling on the primary and secondary patterns and on gain at specific points within beams are described for the Orion satellite antennas. Also shown is how excitation coefficients can be modified to overcome the changes in performance caused by mutual coupling.