A liquid metal alloy antenna based on soft lithography
A novel frequency reconfigurable microstrip patch antenna is proposed, which uses liquid metal alloy and highly extensible elastomer as a radiant patch and a dielectric substrate, respectively. The liquid metal used is eutectic gallium-indium alloy(EGaIn), consisting of 75% gallium and 25% indium. The elastomer used is polymethylsiloxane(PDMS), and the tensile quantity of PDMS under three ratios is measured by experiment. When the mass ratio is 10:1, PDMS has lower viscosity and better stretchability.