Modified Luneburg Lens Based on Metamaterials

Haibing Chen; Qiang Cheng; Aihua Huang; Junyan Dai; Huiying Lu; Jie Zhao; Huifeng Ma; Weixiang Jiang; Tiejun Cui

doi:10.1155/2015/902634

International Journal of Antennas and Propagation (Jan 2015)

Modified Luneburg Lens Based on Metamaterials

Haibing Chen,
Qiang Cheng,
Aihua Huang,
Junyan Dai,
Huiying Lu,
Jie Zhao,
Huifeng Ma,
Weixiang Jiang,
Tiejun Cui

Affiliations

Haibing Chen: State Key Laboratory of Millimeter Waves, Department of Radio Engineering, Southeast University, Nanjing 210096, China
Qiang Cheng: State Key Laboratory of Millimeter Waves, Department of Radio Engineering, Southeast University, Nanjing 210096, China
Aihua Huang: State Key Laboratory of Millimeter Waves, Department of Radio Engineering, Southeast University, Nanjing 210096, China
Junyan Dai: State Key Laboratory of Millimeter Waves, Department of Radio Engineering, Southeast University, Nanjing 210096, China
Huiying Lu: State Key Laboratory of Millimeter Waves, Department of Radio Engineering, Southeast University, Nanjing 210096, China
Jie Zhao: State Key Laboratory of Millimeter Waves, Department of Radio Engineering, Southeast University, Nanjing 210096, China
Huifeng Ma: State Key Laboratory of Millimeter Waves, Department of Radio Engineering, Southeast University, Nanjing 210096, China
Weixiang Jiang: State Key Laboratory of Millimeter Waves, Department of Radio Engineering, Southeast University, Nanjing 210096, China
Tiejun Cui: State Key Laboratory of Millimeter Waves, Department of Radio Engineering, Southeast University, Nanjing 210096, China

DOI: https://doi.org/10.1155/2015/902634
Journal volume & issue: Vol. 2015

Abstract

Read online

We present the design, fabrication, and experimental characterization of a modified two-dimensional Luneburg lens based on bulk metamaterials. The lens is composed by a number of concentric layers. By varying the geometric dimensions of unit cells in each layer, the gradient refractive index profile required for the modified Luneburg lens can be achieved. The cylindrical waves generated from a point source at the focus point of the lens could be transformed into plane waves as desired in the microwave frequency. The proposed modified Luneburg lens can realize wide-angle beam scanning when the source moves along the circumferential direction inside the lens. Numerical and experimental results validate the performance of the modified Luneberg lens.

Published in International Journal of Antennas and Propagation

ISSN: 1687-5869 (Print); 1687-5877 (Online)
Publisher: Hindawi Limited
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering; Social Sciences: Transportation and communications: Cellular telephone services industry. Wireless telephone industry
Website: https://www.hindawi.com/journals/ijap/

About the journal