A Dynamically Beam Steerable Metasurface Antenna with Sidelobe Suppression
16th International Conference on Metamaterials, Photonic Crystals and Plasmonics, META 2026, Dublin, İrlanda, 14 - 17 Temmuz 2026, ss.1404-1408, (Tam Metin Bildiri)
- Yayın Türü: Bildiri / Tam Metin Bildiri
- Basıldığı Şehir: Dublin
- Basıldığı Ülke: İrlanda
- Sayfa Sayıları: ss.1404-1408
- Anahtar Kelimeler: antennas, metasurfaces, sidelobe suppression
- Gazi Üniversitesi Adresli: Evet
Özet
A dynamically beam-steerable metasurface antenna based on a substrate integrated waveguide is presented. Metasurface elements are loaded with PIN diodes to dynamically control the beam steering toward different directions. A modified sidelobe suppression method is also incorporated alongside beam steering and evaluated using analytical array factor calculations and full-wave simulations in ANSYS HFSS. The proposed antenna achieves up to 6 dB sidelobe reduction with minimal main-beam degradation while steering the beam from −25° to +30° in the Kuband using only 24 elements.