## Faculty Publications

#### Title

A Foldable and Reconfigurable Monolithic Reflectarray for Space Applications

#### Keywords

origami, mechanical engineering, reflectarray antenna, CubeSat

#### Abstract

An origami-based foldable and reconfigurable Reflectarray Antenna (RA) with multiple apertures is proposed for CubeSat applications. The proposed configuration consists of a central RA embedded in folding panels using Lamina Emergent Torsional (LET) joints based on compliant mechanisms. Depending on the folding direction of these panels (forward or backward), a new RA aperture is formed. The proposed RA along with its folding panels and hinges is fabricated using only a single PCB. A prototype of such an RA with two foldable panels is fabricated and measured. This RA operates in the Ku-band at 16 GHz and provides two pencil beams pointing at ( $\theta = 30^{\circ }$ , $\varphi = 0^{\circ }$ ) and ( $\theta = -30^{\circ }$ , $\varphi = 0^{\circ }$ ), and a dual-beam pointing at ( $\theta = +27^{\circ }$ , $\varphi = 0^{\circ }$ ) and ( $\theta = -29^{\circ }$ , $\varphi = 0^{\circ }$ ). The proposed RA provides a gain of 25 dB and 19 dB in its single- and dual-beam operations, respectively. For CubeSat applications, the key advantages of this RA are its small stowed volume, reconfigurable EM performance, beamsteering capabilities, monolithic construction, low fabrication cost, and reduced complexity.

#### Original Publication Citation

Kaddour A.S., Velez, C., Hamza, M., Brown, N., Ynchausti, C., Magleby, S., Howell, L., and Georgakopoulos, S., “A Foldable and Reconfigurable Monolithic Reflectarray for Space Applications,” IEEE Access, DOI: 10.1109/ACCESS.2020.3042949, Vol. 8, 29355-219366, 2020.

#### Document Type

Peer-Reviewed Article

2023-03-02

IEEE Access

English

#### College

Ira A. Fulton College of Engineering

#### Department

Mechanical Engineering

Full Professor

COinS