A reconfigurable nested ring-split ring transmitarray unit cell by microfluidic technology

Author

Erdil, Emre ; Topalli, Kagan ; Esmaeilzad, Nasim Seyedpour ; Zorlu, Ozge ; Kulah, Haluk ; Civi, Ozlem Aydin

Author_Institution

Dept. of Electr. & Electron. Eng., Middle East Tech. Univ., Ankara, Turkey

fYear

2014

fDate

6-11 April 2014

Firstpage

124

Lastpage

127

Abstract

This paper presents a reconfigurable circularly polarized transmitarray unit cell by microfluidic technology. The unit cell comprises double layer nested ring-split rings formed as microfluidic channels in the Polydimethylsiloxane (PDMS) material using soft lithography techniques. In this structure, only the inner ring has a split region and this region is realized by leaving a gap in the channel filled by an injected liquid metal whereas the outer channel is filled by the liquid metal. Transmission phase of the unit cell is adjusted by implementing rotational phase shifting via manipulating the liquid metal in the channels. X-band unit cell prototypes are fabricated on a glass substrate.

Keywords

antenna arrays; antenna radiation patterns; lens antennas; lithography; microfluidics; substrates; transmitting antennas; PDMS material; double layer nested ring-split rings; glass substrate; lens array; liquid metal injection; microfluidic channels; microfluidic technology; polydimethylsiloxane material; reconfigurable circularly polarized transmitarray unit cell; reconfigurable nested ring-split ring transmitarray unit cell; rotational phase shifting; soft lithography techniques; split region; Antennas; Arrays; Liquids; Metals; Microfluidics; Structural rings; beam steering; circularly polarized; lens array; microfluidics; reconfigurable; split ring; transmitarray;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (EuCAP), 2014 8th European Conference on

Conference_Location

The Hague

Type

conf

DOI

10.1109/EuCAP.2014.6901708

Filename

6901708