A multi-stable deployable quadrifilar helix antenna with radiation reconfigurability for disaster-prone areas

A multi-stable deployable quadrifilar helix antenna with radiation reconfigurability for disaster-prone areas

Blog Article

Abstract In disaster-prone areas, damaged infrastructure requires impromptu communications leveraging lightweight and adaptive antennas.Accordingly, we introduce a bi-stable deployable quadrifilar helix antenna that passively Thinners reconfigures its radiation characteristics in terms of pattern and polarization.The proposed structure is composed of counter-rotating helical strips, connected by rotational joints to allow a simultaneous change in the helix height and radius.

Each helical strip is composed of a fiber-reinforced composite material to achieve two stable deployed states that are Lawn Ornaments self-locking.The reconfiguration between an almost omnidirectional pattern and a circularly polarized directive pattern enables the antenna to be suitable for both terrestrial and satellite communication within the L-band.More specifically, the presented design in infrastructure-less areas achieves satellite localization with directive circularly polarized waves and point-to-point terrestrial connectivity with an almost omnidirectional state.

Hence, we present a portable, agile, and passively reconfigured antenna solution for low-infrastructure areas.