An Octave Bandwidth Metamaterials-based Hexagonal Patch Antenna

  • Dong Sik Woo Kyungpook National University
  • Cherl-Hee Lee
  • Kang Wook Kim
  • Hyun-Chul Choi


A broadband metamaterials (MTM)-based hexagonal patch antenna is designed and presented. A hexagonal shape of a top patch on a mushroom structure makes not only direct-current paths between two ends of the patch but also round-current path along the outside of the patch, thereby widening a resonance frequency of the mushroom MTM antenna. Moreover, input microstrip transmission line acted as a reflecting element for the surface wave, resulting in forward-directed end-fired radiation. The hexagonal patch was implemented by utilizing a composite right-and left-handed (CRLH) transmission line. The antenna operates from 15.9 GHz to 30.6 GHz covering the Ku- to Ka-band. The antenna gain is from 6 dBi to 9.3 dBi with small size compared to the conventional antennas. The application areas are in automotive radars and ground penetrating radar (GPR).


How to Cite
Woo, D. S., Lee, C.-H., Kim, K. W., & Choi, H.-C. (2015). An Octave Bandwidth Metamaterials-based Hexagonal Patch Antenna. Elektronika Ir Elektrotechnika, 21(5), 44-47.