3D Printed Dielectric Reflectarrays: Low-Cost High-Gain Antennas at Sub-Millimeter Waves
Payam Nayeri, Min Liang, Rafael Sabory-García, Mingguang Tuo, Fan Yang, Michael Gehm, Hao Xin, Atef Z. Elsherbeni
IEEE Transactions on Antennas and Propagation
Volume: 62, Issue: 4, April 2014
2000 - 2008
Array antennas, Dielectric antenna, Material loss, Optical antennas, Reflectarray, Terahertz
Dielectric reflectarray antennas are proposed as a promising low-loss and low-cost solution for high gain Terahertz (THz) antennas. Variable height dielectric elements are used in the reflectarray designs, which allow for the use of low dielectric-constant materials. Polymer-jetting 3-D printing technology is utilized to fabricate the antenna, which makes it possible to achieve rapid prototyping at a low-cost. Numerical and experimental results are presented for 3 different prototypes operating at 100 GHz, which show a good performance. Moreover the methodology proposed here is readily scalable, and with the current material and fabrication technology, designs up to 1.0 THz can be realized. This study reveals that the proposed design approach is well suited for low-cost high-gain THz antennas.
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