Design of polarization-dependent reflectarray for terahertz waves
Date
2014
Authors
Niu, T.
Withayachumnankul, W.
Abbott, D.
Fumeaux, C.
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Conference paper
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2014 International Workshop on Antenna Technology: Small Antennas, Novel EM Structures and Materials, and Applications, 2014, pp.205-207
Statement of Responsibility
Tiaoming Niu, Withawat Withayachumnankul, Derek Abbott, and Christophe Fumeaux
Conference Name
International Workshop on Antenna Technology: Small Antennas, Novel EM Structures and Materials, and Applications (iWAT) (4 Mar 2014 - 6 Mar 2014 : Sydney, NSW)
Abstract
A reflectarray is designed for polarizationdependent beam deflection at 1 THz. Each unit cell is composed of two sets of dipole resonators, corresponding to orthogonal polarizations. The orthogonal dipoles are arranged in two interlaced triangular-lattice arrays. One subarray containing multiple unit cells provides a gradient phase response to complete a 2π phase cycle over its length. This design demonstrates that it is possible to separate the polarization components of an incident beam by deflecting them into two different directions in a given plane. Numerical results predict successful implementation of the principle with available materials and within realistic manufacturing tolerances for operation at a frequency of 1 THz.
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© 2014 IEEE