Realizing Optimal Current Distributions for Radiation Efficiency in Practical Antennas

Riku Kormilainen*, Jari Matti Hannula, Tapio O. Saarinen, Anu Lehtovuori, Ville Viikari

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

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Modern antenna design is facing increasing issues with the radiation efficiency, since the space available for antennas is scarce and antennas are fitted into lossy environments. This letter presents a multiport antenna design method with a computationally efficient way to realize the port currents providing the highest radiation efficiency. In this method, an antenna is described with multiple excitation ports in electromagnetic simulations. The measurement results of an example design demonstrate the achieved benefit compared to traditional antenna design.

Original languageEnglish
Article number9086649
Pages (from-to)731-735
Number of pages5
JournalIEEE Antennas and Wireless Propagation Letters
Issue number5
Publication statusPublished - May 2020
MoE publication typeA1 Journal article-refereed


  • Current
  • far field
  • multiport antenna
  • radiation efficiency

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