Metamaterial tunable filter with liquid metal

Author

Zhu, W.M. ; Zhang, Wensheng ; Huang, R.F. ; Ting, S.K. ; Lo, G.Q. ; Kwong, D.L. ; Liu, A.Q.

Author_Institution

Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore

fYear

2013

fDate

20-24 Jan. 2013

Firstpage

725

Lastpage

728

Abstract

In this paper, we demonstrate a metamaterial tunable filter with liquid metal, which can be tuned by adjusting the size and position of the air gap within the liquid metal. In experiment, it measures a 2.3 GHz tuning range for the tunable metmaterial unit with the working wavelength of 8.9 GHz. The tuning of 5 × 5 unit array is also demonstrated. Different from traditional metamaterials [1, 2], the metal patterns of the tunable metamaterial filter are liquid state which can be reshaped once fabricated. The liquid state metal pattern not only advances in flexible tuning method, but also results in large tuning range for vast applications, such as tunable filter, accelerometer and optical switch.

Keywords

UHF filters; liquid metals; microwave metamaterials; accelerometer; air gap position; air gap size; flexible tuning method; frequency 2.3 GHz; liquid metal; liquid state metal pattern; metamaterial tunable filter; optical switch; Acceleration; Liquids; Magnetic materials; Metals; Metamaterials; Optical filters; Tuning;

fLanguage

English

Publisher

ieee

Conference_Titel

Micro Electro Mechanical Systems (MEMS), 2013 IEEE 26th International Conference on

Conference_Location

Taipei

ISSN

1084-6999

Print_ISBN

978-1-4673-5654-1

Type

conf

DOI

10.1109/MEMSYS.2013.6474345

Filename

6474345