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Title: Metasurface-based ultra-lightweight high-gain off-axis flat parabolic reflectarray for microwave beam collimation/focusing

Abstract

Ultra-lightweight deployable antennas with high-gain are pivotal communication components for small satellites, which are intrinsically constrained in size, weight, and power. In this work, we design and demonstrate metasurface-based ultra-lightweight flat off-axis reflectarrays for microwave beam collimation and focusing, similar to a parabolic dish-antenna. Our ultra-thin reflectarrays employ resonators of variable sizes to cover the full 2$π$ phase range, and are arranged on the metasurface to realize a two-dimensional parabolic focusing phase distribution. We demonstrate a 30° off-axis focusing reflector that exhibits a measured gain of 27.5 dB at the central operating frequency of 11.8 GHz and a 3 dB directionality <$±$1.6°. Furthermore, we carry out full-wave simulations of the reflectarray, showing high gain of the beam focusing/collimation functionality, in good agreement with measurements. The demonstrated reflectarrays will enable low-cost, lightweight, and high-gain deployable transceivers for small-satellite platforms.

Authors:
ORCiD logo [1];  [2]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1];  [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Edinboro Univ. of Pennsylvania, PA (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1601398
Report Number(s):
[LA-UR-19-22629]
[Journal ID: ISSN 2045-2322]
Grant/Contract Number:  
[89233218CNA000001; AC52-06NA25396]
Resource Type:
Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
[ Journal Volume: 9; Journal Issue: 1]; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; reflectarray, metasurfaces; engineering; materials science; physics

Citation Formats

Silva, Sinhara Rishi Malinda, Rahman, Abdur, de Melo Kort-Kamp, Wilton Junior, Rushton, Jeremiah Joseph, Singleton, John, Taylor, Antoinette Jane, Dalvit, Diego Alejandro Roberto, Chen, Houtong, and Azad, Abul Kalam. Metasurface-based ultra-lightweight high-gain off-axis flat parabolic reflectarray for microwave beam collimation/focusing. United States: N. p., 2019. Web. doi:10.1038/s41598-019-55221-8.
Silva, Sinhara Rishi Malinda, Rahman, Abdur, de Melo Kort-Kamp, Wilton Junior, Rushton, Jeremiah Joseph, Singleton, John, Taylor, Antoinette Jane, Dalvit, Diego Alejandro Roberto, Chen, Houtong, & Azad, Abul Kalam. Metasurface-based ultra-lightweight high-gain off-axis flat parabolic reflectarray for microwave beam collimation/focusing. United States. doi:10.1038/s41598-019-55221-8.
Silva, Sinhara Rishi Malinda, Rahman, Abdur, de Melo Kort-Kamp, Wilton Junior, Rushton, Jeremiah Joseph, Singleton, John, Taylor, Antoinette Jane, Dalvit, Diego Alejandro Roberto, Chen, Houtong, and Azad, Abul Kalam. Thu . "Metasurface-based ultra-lightweight high-gain off-axis flat parabolic reflectarray for microwave beam collimation/focusing". United States. doi:10.1038/s41598-019-55221-8. https://www.osti.gov/servlets/purl/1601398.
@article{osti_1601398,
title = {Metasurface-based ultra-lightweight high-gain off-axis flat parabolic reflectarray for microwave beam collimation/focusing},
author = {Silva, Sinhara Rishi Malinda and Rahman, Abdur and de Melo Kort-Kamp, Wilton Junior and Rushton, Jeremiah Joseph and Singleton, John and Taylor, Antoinette Jane and Dalvit, Diego Alejandro Roberto and Chen, Houtong and Azad, Abul Kalam},
abstractNote = {Ultra-lightweight deployable antennas with high-gain are pivotal communication components for small satellites, which are intrinsically constrained in size, weight, and power. In this work, we design and demonstrate metasurface-based ultra-lightweight flat off-axis reflectarrays for microwave beam collimation and focusing, similar to a parabolic dish-antenna. Our ultra-thin reflectarrays employ resonators of variable sizes to cover the full 2$π$ phase range, and are arranged on the metasurface to realize a two-dimensional parabolic focusing phase distribution. We demonstrate a 30° off-axis focusing reflector that exhibits a measured gain of 27.5 dB at the central operating frequency of 11.8 GHz and a 3 dB directionality <$±$1.6°. Furthermore, we carry out full-wave simulations of the reflectarray, showing high gain of the beam focusing/collimation functionality, in good agreement with measurements. The demonstrated reflectarrays will enable low-cost, lightweight, and high-gain deployable transceivers for small-satellite platforms.},
doi = {10.1038/s41598-019-55221-8},
journal = {Scientific Reports},
number = [1],
volume = [9],
place = {United States},
year = {2019},
month = {12}
}

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