Offset Horn Antenna Directivity Gain Enhancement By DNG Lens

Tütüncü B., Urul B.

IV. INTERNATIONAL ACADEMIC RESEARCH CONGRESS, Antalya, Türkiye, 30 Ekim - 03 Kasım 2018, ss.985-989

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: Antalya
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.985-989
  • Van Yüzüncü Yıl Üniversitesi Adresli: Hayır

Özet

In this study, an offset horn feed parabolic reflector antenna operating at 29.75 GHz Ka band

transmitter frequency, is designed, simulated and the directivity radiation pattern is plotted. Then an omega

metamaterial (MM) lens layer is designed to show double negative (DNG) characteristic in the same

frequency range and used inside the horn antenna and the far field radiation pattern was replotted. According

to the simulation results, when the MM lens is used, an increase of +3.7 dB in the directivity and a 4.3 °

decrease in the HPBW of the feed horn antenna, is observed.