Abstract
Metamaterials have been used in many different configurations to enhance the radiation properties of antennas. However, the vast majority of these metamaterial applications only consider linearly polarized antennas. This paper discusses the theory, design, implementation, and measurements of a far-field collimating lens for use with a circularly-polarized crossed-dipole antenna constructed from a 3D-volumetric metamaterial slab. Zero-index materials (ZIM) and low-index materials (LIM) cause the magnitude and phase of the radiated field across the face of the lens to be distributed uniformly, increasing the broadside gain over the feed antenna alone. Full-wave simulations were used in design of the lens, and a prototype metamaterial lens (meta-lens) was constructed and measured to verify the theoretical predictions. The meta-lens was found to increase the measured directivity of a crossed-dipole feed antenna by more than 6 dB, in good agreement with numerical simulations.
| Original language | English (US) |
|---|---|
| Article number | 6272329 |
| Pages (from-to) | 5717-5726 |
| Number of pages | 10 |
| Journal | IEEE Transactions on Antennas and Propagation |
| Volume | 60 |
| Issue number | 12 |
| DOIs | |
| State | Published - Dec 17 2012 |
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All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering
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Low cost and broadband dual-polarization metamaterial lens for directivity enhancement. / Turpin, Jeremiah P.; Wu, Qi; Werner, Douglas Henry; Martin, Bonnie; Bray, Matt; Lier, Erik.
In: IEEE Transactions on Antennas and Propagation, Vol. 60, No. 12, 6272329, 17.12.2012, p. 5717-5726.Research output: Contribution to journal › Article
TY - JOUR
T1 - Low cost and broadband dual-polarization metamaterial lens for directivity enhancement
AU - Turpin, Jeremiah P.
AU - Wu, Qi
AU - Werner, Douglas Henry
AU - Martin, Bonnie
AU - Bray, Matt
AU - Lier, Erik
PY - 2012/12/17
Y1 - 2012/12/17
N2 - Metamaterials have been used in many different configurations to enhance the radiation properties of antennas. However, the vast majority of these metamaterial applications only consider linearly polarized antennas. This paper discusses the theory, design, implementation, and measurements of a far-field collimating lens for use with a circularly-polarized crossed-dipole antenna constructed from a 3D-volumetric metamaterial slab. Zero-index materials (ZIM) and low-index materials (LIM) cause the magnitude and phase of the radiated field across the face of the lens to be distributed uniformly, increasing the broadside gain over the feed antenna alone. Full-wave simulations were used in design of the lens, and a prototype metamaterial lens (meta-lens) was constructed and measured to verify the theoretical predictions. The meta-lens was found to increase the measured directivity of a crossed-dipole feed antenna by more than 6 dB, in good agreement with numerical simulations.
AB - Metamaterials have been used in many different configurations to enhance the radiation properties of antennas. However, the vast majority of these metamaterial applications only consider linearly polarized antennas. This paper discusses the theory, design, implementation, and measurements of a far-field collimating lens for use with a circularly-polarized crossed-dipole antenna constructed from a 3D-volumetric metamaterial slab. Zero-index materials (ZIM) and low-index materials (LIM) cause the magnitude and phase of the radiated field across the face of the lens to be distributed uniformly, increasing the broadside gain over the feed antenna alone. Full-wave simulations were used in design of the lens, and a prototype metamaterial lens (meta-lens) was constructed and measured to verify the theoretical predictions. The meta-lens was found to increase the measured directivity of a crossed-dipole feed antenna by more than 6 dB, in good agreement with numerical simulations.
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UR - http://www.scopus.com/inward/citedby.url?scp=84870902783&partnerID=8YFLogxK
U2 - 10.1109/TAP.2012.2214013
DO - 10.1109/TAP.2012.2214013
M3 - Article
AN - SCOPUS:84870902783
VL - 60
SP - 5717
EP - 5726
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
SN - 0018-926X
IS - 12
M1 - 6272329
ER -