“…More versatile devices with the ability to dynamically reconfigure, tune, erase or write electrical circuits are possible if incorporating liquid metal components. Recently, the use of liquid metal in reconfigurable microstrip RF filters [158,159], wideband RF switches [160], FSS [161], antennas [98,[162][163][164][165][166] and plasmonic devices [167] have been reported. In these applications, though the control of current paths is significantly enhanced by pneumatically actuating liquid metal using pumps or contact pressure, the use of an external control system increases overall complexity, reduces switching speed and is unable to reconfigure actual wires.…”