Title :
A reconfigurable, liquid-metal-based low-pass filter with reversible tuning
Author :
Tonaki, Wade G. ; Wenqi Hu ; Ohta, Aaron T. ; Shiroma, Wayne A.
Author_Institution :
Dept. of Electr. Eng., Univ. of Hawaii at Manoa, Honolulu, HI, USA
Abstract :
A reconfigurable low-pass filter that uses reversibly actuated liquid metal as the tuning mechanism is demonstrated. Reversible tuning of up to eight cutoff frequencies is achieved by filling and evacuating defected ground structure lattices with Galinstan liquid metal. Measurements of four of the cutoff frequencies show a 59% tuning range.
Keywords :
defected ground structures; eutectic alloys; liquid metals; low-pass filters; microfluidics; radiofrequency filters; Galinstan liquid metal; cutoff frequencies; defected ground structure lattices; reconfigurable low-pass filter; reversibly actuated liquid metal; tuning mechanism; Microfluidics; Tunable circuits and devices;
Conference_Titel :
Wireless Symposium (IWS), 2013 IEEE International
Conference_Location :
Beijing
DOI :
10.1109/IEEE-IWS.2013.6616802
