Mode reconfigurable bistable spiral antenna based on kresling origami

This paper presents a mode reconfigurable origami spiral antenna using the bistable property of Kresling origami. An analytical method is proposed to find a suitable Kresling conical pattern for antenna applications that can hold its shape automatically by its internal tension after being deployed or collapsed. From the deployed (unfolded) state to the collapsed (folded) state, the bifilar spiral antenna is reconfigured from conical to planar with its main beam being reconfigured from two to one. This antenna is circularly polarized from 2.5 GHz to 3.2 GHz with realized gain from 6.2 dB to 8.9 dB and can be used for satellite communication.