NDLI: Computational microwave imaging using 3D printed conductive polymer frequency-diverse metasurface antennas

Content Provider	IET Digital Library
Author	Yurduseven, Okan Flowers, Patrick Ye, Shengrong Marks, Daniel L. Gollub, Jonah N. Fromenteze, Thomas Wiley, Benjamin J. Smith, David R.
Abstract	A frequency-diverse computational imaging system synthesised using three-dimensional (3D) printed frequency-diverse metasurface antennas is demonstrated. The 3D fabrication of the antennas is achieved using a combination of polylactic acid (PLA) polymer material and conductive polymer material (Electrifi), circumventing the requirement for expensive and time-consuming conventional fabrication techniques, such as machine milling, photolithography, and laser-etching. Using the 3D printed frequency-diverse metasurface antennas, a composite aperture is designed and simulated for imaging in the K-band frequency regime (17.5–26.5 GHz). The frequency-diverse system is capable of imaging by means of a simple frequency-sweep in an all-electronic manner, avoiding mechanical scanning and active circuit components. Using the synthesised system, microwave imaging of objects is achieved at the diffraction limit. It is also demonstrated that the conductivity of the Electrifi polymer material significantly affects the performance of the 3D printed antennas and therefore is a critical factor governing the fidelity of the reconstructed images.
Starting Page	1962
Ending Page	1969
Page Count	8
ISSN	17518725
Volume Number	11
e-ISSN	17518733
Issue Number	Issue 14, Nov (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-map/11/14
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-map.2017.0104
Journal	IET Microwaves, Antennas & Propagation
Publisher Date	2017-09-18
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	3D Printed Conductive Polymer Frequency-diverse Metasurface Antennas Active Circuit Component Composite Aperture Design Computational Microwave Imaging Conductive Polymer Material Diffraction Limit Eengineering Materials Science Electrifi Conductivity Frequency 17.5 GHz to 26.5 GHz Frequency-diverse Computational Imaging System Image Reconstruction K-band Frequency Regime Laser-etching Machine Milling Mechanical Scanning Metamaterial Antenna Microwave Antenna Microwave Imaging Microwave Measurement Technique Optical, Image And Video Signal Processing Photolithography Polylactic Acid Polymer Material Polymer Polymers And Plastics Single Antenna Three-dimensional Fabrication
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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