High gain antipodal fermi antenna with low cross polarization

Hiroyasu Sato, Yukiko Takagi, Kunio Sawaya

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)


Antipodal Fermi antenna (APFA) that uses an antipodal feeding section is proposed and its fundamental characteristics are presented. It is shown that the cross polarization level is decreased by 5-10 dB by the presence of the corrugation. It is also found that high gain, low VSWR and low side lobes and low back lobes are obtained. The mechanism of operation principles is discussed by using FDTD analysis. It is found that the corrugation transforms the current of parallel line mode to the current of traveling wave radiation mode and the effective aperture is enlarged which yields high gain characteristics.

Original languageEnglish
Pages (from-to)2292-2297
Number of pages6
JournalIEICE Transactions on Communications
Issue number8
Publication statusPublished - 2011 Aug


  • Broadband antenna
  • Fermi antenna
  • TSA
  • Tapered slot antenna
  • UWB antenna


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