Microfluidic Reconfigurable Nested Split Ring-Regular Ring Transmitarray Unit Cell

Date

2014-08-23

Author

Erdil, Emre
Topalli, Kagan
Esmaeilzad, Nasim Seyedpour
Zorlu, Ozge
Külah, Haluk
Aydın Çivi, Hatice Özlem

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A reconfigurable, circularly polarized transmitarray unit cell consisting of double layer nested split ring-regular ring formed as microfluidic channels inside Polydimethylsiloxane (PDMS) is designed and fabricated. The operation of the unit cell is based on the element rotation method. The liquid metal is injected into the channels and it forms the conductive part in the structures whereas the split region in the outer ring is air. The movement of the liquid metal together with the split around the outer ring realizes the rotation of the element around its surface normal. The rotation of the element provides a phase shift proportional to the rotation angle and the phase of the transmitted wave can be tuned by controlling this rotation using micropumps. The unit cell is designed to operate at 8.15 GHz and it can be easily scaled to other frequencies.

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URI

https://hdl.handle.net/11511/53005

Conference Name

29th URSI General Assembly and Scientific Symposium (URSI GASS)

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Department of Electrical and Electronics Engineering, Conference / Seminar

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Reconfigurable Nested Ring-Split Ring Transmitarray Unit Cell Employing the Element Rotation Method by Microfluidics Erdil, Emre; TOPALLI, KAĞAN; Esmaeilzad, Nasim S.; Zorlu, Ozge; Külah, Haluk; Aydın Çivi, Hatice Özlem (2015-03-01) A continuously tunable, circularly polarized X-band microfluidic transmitarray unit cell employing the element rotation method is designed and fabricated. The unit cell comprises a double layer nested ringsplit ring structure realized as microfluidic channels embedded in Polydimethylsiloxane (PDMS) using soft lithography techniques. Conductive regions of the rings are formed by injecting a liquid metal (an alloy of Ga, In, and Sn), whereas the split region is air. Movement of the liquid metal together with ...
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Citation Formats

E. Erdil, K. Topalli, N. S. Esmaeilzad, O. Zorlu, H. Külah, and H. Ö. Aydın Çivi, “Microfluidic Reconfigurable Nested Split Ring-Regular Ring Transmitarray Unit Cell,” presented at the 29th URSI General Assembly and Scientific Symposium (URSI GASS), Beijing, PEOPLES R CHINA, 2014, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/53005.