Maximum Gain, Effective Area, and Directivity

  title={Maximum Gain, Effective Area, and Directivity},
  author={Mats G. Gustafsson and Miloslav Capek},
  journal={IEEE Transactions on Antennas and Propagation},
  • M. Gustafsson, M. Capek
  • Published 11 December 2018
  • Engineering
  • IEEE Transactions on Antennas and Propagation
Fundamental bounds on antenna gain are found via convex optimization of the current density in a prescribed region. Various constraints are considered, including self-resonance and only partial control of the current distribution. Derived formulas are valid for arbitrarily shaped radiators of a given conductivity. All the optimization tasks are reduced to eigenvalue problems, which are solved efficiently. The second part of this paper deals with superdirectivity and its associated minimal costs… 
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