@inproceedings{ea35977bea6a4850827c8cae5c733b44,
title = "Flexible Liquid Metal Frequency Selective Surface with Tunable Second-Order Bandpass Response",
abstract = "A flexible, fluidically tunable, second-order bandpass frequency selective surface (FSS) operating in the X-band is presented in this paper. The proposed multilayer structure utilizes elastomeric microfluidic channels to enclose and allow precise movement of gallium-based liquid metal slugs, while preserving its mechanically flexible nature. The liquid metal slug tuning elements are integrated into two periodic Jerusalem cross layers, which are coupled together through a periodic square aperture layer. By pneumatically shifting the position of the liquid metal slugs, the capacitance between adjacent Jerusalem cross elements can be linearly tuned, with high precision, to shift the operating frequency range of the filter in real time. Full-wave simulation of the bandpass FSS is performed for three different liquid metal slug orientations to demonstrate the tunability of the design.",
keywords = "Galinstan, Liquid metal, flexible metasurface, frequency selective surfaces, periodic structure, tunable filters",
author = "Kevin Xu and Choi, \{Jun H.\} and Komlan Payne and Lee, \{Jay K.\} and Lee, \{Jeong Bong\}",
note = "Publisher Copyright: {\textcopyright} 2020 IEEE.; 2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, IEEECONF 2020 ; Conference date: 05-07-2020 Through 10-07-2020",
year = "2020",
month = jul,
day = "5",
doi = "10.1109/IEEECONF35879.2020.9330077",
language = "English",
series = "2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, IEEECONF 2020 - Proceedings",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "725--726",
booktitle = "2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, IEEECONF 2020 - Proceedings",
address = "United States",
}