Yongduk Oh

College of Engineering

Works (5)

Updated: April 11th, 2023 10:13

2022 journal article

Low Profile GRIN Lenses With Integrated Matching Using 3-D Printed Ceramic

IEEE OPEN JOURNAL OF ANTENNAS AND PROPAGATION, 4, 12–22.

By: Y. Oh n, N. Kordsmeier n, H. Askari n & J. Adams n 

author keywords: Lenses; Permittivity; Apertures; Horn antennas; Ceramics; Three-dimensional displays; Reflection; Horn; GRIN lens; high permittivity ceramic; quarter wavelength matching; tapered matching; unit cells; 3D print
TL;DR: This paper investigates a shortened horn antenna with high gain that is enabled by a 3D-printed gradient index (GRIN) lens composed of high permittivity zirconia and results show good agreement with simulations, including gain performance equivalent to a horn of 2.4x longer length. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: March 13, 2023

2021 article

Implementation of A Flat-Bottom Luneburg Lens Based on Conformal Transformation Optics

2021 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM (IMS), pp. 556–558.

By: B. Yang *, Y. Oh n, X. Hu* & J. Adams n 

author keywords: transformation optics; numerical conformal mapping; Luneburg lens; unit cell
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: October 11, 2022

2021 journal article

Unit cell estimation of volumetrically-varying permittivity in additively-manufactured ceramic lattices with X-ray computed tomography

MATERIALS & DESIGN, 210.

By: E. Burden *, Y. Oh n, B. Mummareddy *, D. Negro*, P. Cortes *, A. Du Plessis *, E. MacDonald *, J. Adams n , F. Li *, R. Rojas *

author keywords: Additive Manufacturing; Functionally Graded Lattices; Ceramics; Zirconia; Nano-particle Jetting; Material Jetting; X-ray tomography
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: November 8, 2021

2020 article

3D Printed Zirconia for UWB Stacked Conical Ring DRA

2020 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION AND NORTH AMERICAN RADIO SCIENCE MEETING, pp. 41–42.

By: V. Bharambe n , Y. Oh n, J. Adams n , D. Negro* & E. MacDonald *

author keywords: 3D Printing; zirconia; Dielectric Resonator Antenna; UWB antenna
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: June 28, 2021

2020 article

Design of a 3D Printed Gradient Index Lens Using High Permittivity Ceramic

2020 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION AND NORTH AMERICAN RADIO SCIENCE MEETING, pp. 1431–1432.

By: Y. Oh n, V. Bharambe n , J. Adams n , D. Negro n & E. MacDonald *

author keywords: 3D printing; zirconia; high dielectric constant; effective permittivity; GRIN lens
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: June 28, 2021

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