Tailored compliant mechanisms for reconfigurable electromagnetic devices

Abstract

Reconfigurable electromagnetic devices, specifically reconfigurable antennas, have shown to be integral to the future of communication systems. However, mechanically robust designs that can survive real-world, harsh environment applications and high-power conditions remain rare to this day. In this paper, the general framework for a field of both discrete and continuously mechanically reconfigurable devices is established by combining compliant mechanisms with electromagnetics. To exemplify this new concept, a reconfigurable compliant mechanism antenna is demonstrated which exhibits continuously tunable performance across a broad band of frequencies. Moreover, three additional examples are also introduced that further showcase the versatility and advanced capabilities of compliant mechanism enabled electromagnetic devices. Unlike previous approaches, this is achieved with minimal part counts, additive manufacturing techniques, and high reliability, which mechanical compliant mechanism devices are known for. The results presented exemplify how compliant mechanisms have the capacity to transform the broader field of reconfigurable electromagnetic devices.

A State-of-the-Art Review on 4D Printed Antennas and Other Adaptable Designs

“…In the study [81], a reconfigurable compliant mechanism antenna (RCMA) was developed, covering the frequency range of 3.46 to 6.18 GHz. The antenna comprised three main components: a 3D printed cap housing a radiating patch, a custom 3D printed multi-leaf system with six inductive shorting pins (Fig.…”