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Experimental realisation of integrated THz electromagnetic crystals (EMXT) H-plane horn antenna

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4 Author(s)
Y. Liu ; Department of Electronic Engineering, School of Information and Electronic, Beijing Institute of Technology, Beijing 100081, People's Republic of China ; L. -M. Si ; S. -H. Zhu ; H. Xin

An integrated terahertz (THz) H-plane horn antenna made of an electromagnetic crystals (EMXT) straight waveguide feed and a gradually flared horn is investigated. The EMXT structure is composed of metallised periodic square rods with dimensions of 48×48×241××m (width×length×height). The THz horn antenna is simulated using the finite element method and fabricated by microelectromechanical systems technology on silicon substrate. Measured attenuation loss of the EMXT straight waveguide is 0.17×dB per wavelength at 0.5×THz (××600××m). Good radiation patterns with 25× half power beam width and a low sidelobe of ×18.2×dB in the H-plane are demonstrated at 0.5×THz.

Published in:

Electronics Letters  (Volume:47 ,  Issue: 2 )