Waterbomb Origami Ring Antenna 

A waterbomb origami ring antenna is a compact and versatile antenna that combines waterbomb origami folding techniques with a ring-shaped antenna structure. This fusion allows for adaptability and portability, making it ideal for applications with limited space or changing operating frequencies.

1. N. E. Russo, C. L. Zekios, S. V. Georgakopoulos, H. S. An, A. K. Mishra and R. F. Shepherd, "Design and Fabrication of an Origami Multimode Ring Antenna," 2021 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM), Boulder, CO, USA, 2021, pp. 246-247, doi: 10.23919/USNC-URSINRSM51531.2021.9336435.

3D printed Bi-stable Actuators 

This research explores the underactuated fluidic control of continuous multistable structures, which are increasingly significant in fields like microelectromechanical systems, mechanical logic systems, origami, and soft robotics. Unlike previous studies focusing on single bistable elements or discrete multistable structures, we analyze and experimentally demonstrate the ability to pattern continuous multistable structures using a single pressure inlet. These continuous structures offer infinite stable patterns, significantly increasing their versatility across various applications.

1. Peretz, O., Mishra, A.K., Shepherd, R.F. and Gat, A.D., 2020. Underactuated fluidic control of a continuous multistable membrane. Proceedings of the National Academy of Sciences, 117(10), pp.5217-5221. https://doi.org/10.1073/pnas.1919738117

Deployable SMA-Based Light Solar Sail Prototype

This paper discusses the implementation of smart materials for robotic applications, particularly in the context of Solar Sail actuation. Instead of the conventional Origami model, the study introduces a miniaturized version of the Solar Sail capable of controlled opening and closing. It achieves this using a linear actuator based on shape memory alloy (SMA). The paper outlines the structural aspects of the light Solar Sail with the SMA-based linear actuator and presents experimental findings regarding the power requirements for these operations. The ultimate goal is to minimize power consumption during the opening and closing of the Solar Sail, making it a viable option for efficient real-time space exploration in future missions.



1. Karmakar, S., Mishra, A. Deployable SMA-Based Light Solar Sail Prototype. Adv. Astronaut. Sci. Technol. 5, 73–80 (2022). https://doi.org/10.1007/s42423-021-00080-7

Alligator and Mule-inspired Legged Robot 

I  researched on bio-inspired quadruped robots that draw inspiration from nature's successful legged locomotion patterns. The work spans design, simulation, fabrication, and electronics integration, with a focus on adaptability to challenging terrains. Key contributions include multidisciplinary modeling, gait synthesis, and motion control. Two specific projects are highlighted: an alligator-inspired robot with eight degrees of freedom and a "Robotic Mule" for heavy-load transportation. These endeavors aim to create versatile robots capable of thriving in rough terrains, offering potential applications across various fields.

1. Shriyam, S., Mishra, A.K., Nayak, D., & Thakur, A., 2014. Design, fabrication, and gait planning of alligator-inspired robots. International Journal of Current Engineering and Technology, 567-575. https://doi.org/10.14741/IJCET%2FSPL.2.2014.108