“OrigamiSat-2” Origami Reflectarray Antenna Demonstration Satellite

The 3U CubeSat “OrigamiSat-2” is currently under development in the Sakamoto Laboratory of the Department of Mechanical Engineering and the Tomura Laboratory of the Department of Electrical and Electronic Engineering at the Tokyo Institute of Technology. The purpose of this satellite is to demonstrate on-orbit high-gain antenna technology for small satellites. The antenna surface is composed of a membrane surface with extremely low rigidity, and the approach of “daring not to require high flatness” is used to aggressively reduce the antenna weight and storage rate to achieve a large area.

The “OrigamiSat-2” has been selected as one of the demonstration themes for the Epsilon Launch Vehicle Innovative Satellite Technology Demonstration No. 4 of the Japan Aerospace Exploration Agency (JAXA), and the flight model will be delivered to JAXA during 2024, after which it will be launched. 3 space proven in 2019 The satellite technology will be demonstrated by applying the satellite development know-how and multifunctional membrane deployment technology acquired through the development of the U CubeSat “OrigamiSat-1”.


The four goals of this satellite are as follows

  • Realization of a lightweight, high storage capacity deployable reflector array antenna structure with a two-layer deployable membrane
  • On-orbit demonstration of high-gain membrane antenna performance
  • Contribution to the spread and development of 5.8GHz amateur radio technology
  • Establishment of methods and human resource development for continuous space demonstration of advanced space systems



System Summary

  • 3U CubeSat(100mm × 100mm × 340.5mm)
  • 4.0 kg
  • Amatuer UHF Tx, Amatuer C-band Tx


More detailed features, structures and Link margin