@inproceedings{b42d42d0798b4912bbe315883390e5cb,
title = "Flexible Liquid-Metal-Tuned Higher-Order Bandpass Frequency Selective Surfaces",
abstract = "This paper presents a new implementation of liquid-metal-tuned higher-order bandpass frequency selective surfaces (FSSs). The proposed multi-layer periodic structures are based upon a topology consisting of resonant FSS layers separated by thickness-controlling aperture coupling interlayers. These liquid metal layers are used in combination with an elastomeric substrate to realize a mechanically flexible and fluidically tunable device. Capacitive tuning slugs are integrated into the resonant FSS layers to enable real-time tuning of the bandpass filter's operating frequency range. To demonstrate the proposed higher-order liquid-metal-tuned spatial filters, both second-order and third-order bandpass FSSs, operating in the Ku-band, are designed and validated using full-wave electromagnetic simulation.",
keywords = "flexible metasurface, frequency selective surfaces, Galinstan, Liquid metal, periodic structure, tunable filters",
author = "Kevin Xu and Choi, \{Jun H.\}",
note = "Publisher Copyright: {\textcopyright} 2020 IEEE.; 2020 Asia-Pacific Microwave Conference, APMC 2020 ; Conference date: 08-12-2020 Through 11-12-2020",
year = "2020",
month = dec,
day = "8",
doi = "10.1109/apmc47863.2020.9331351",
language = "English",
series = "Asia-Pacific Microwave Conference Proceedings, APMC",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "296--298",
editor = "Jie Sun and Yu, \{Wai Ho\}",
booktitle = "2020 Asia-Pacific Microwave Conference, APMC 2020 - Proceeding",
address = "United States",
}