Inset-fed liquid metal patch antenna

The paper presents the inset-fed liquid metal patch antenna with a non-contact excitation. The antenna is a classical rectangular patch operating at 2.4 GHz designed to facilitate its fabrication via injection molding technology using the flexible silicon elastomer (PDMS) and non-toxic liquid metal (Galinstan). The impact of the microfluidic channel structure (i.e. posts arrangement) on the antenna performance is investigated numerically via comparison of three patch antennas with different post layouts.