A reconfigurable, liquid-metal-based low-pass filter with reversible tuning
- Resource Type
- Conference
- Authors
- Tonaki, Wade G.; Hu, Wenqi; Ohta, Aaron T.; Shiroma, Wayne A.
- Source
- 2013 IEEE International Wireless Symposium (IWS) Wireless Symposium (IWS), 2013 IEEE International. :1-3 Apr, 2013
- Subject
- Computing and Processing
Low-pass filters
Liquids
Metals
Tuning
Radio frequency
Microwave filters
Filtering theory
Microfluidics
Tunable circuits and devices
- Language
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.