Proceedings ArticleDOI
CP metasurfaced antennas excited by LP sources
Hailiang Zhu,Kwok L. Chung,X. L. Sun,Sing Wai Cheung,T. I. Yuk +4 more
- pp 1-2
TLDR
In this article, a metasurface which is considered as a polarizer for microwave antennas is proposed and preliminary results have shown that circularly polarized (CP) radiation can be obtained from linearly polarized (LP) source antennas with the use of metasuran surface, antenna performance such as realized gain, efficiency and bandwidth are improved simultaneously.Abstract:
A metasurface which is considered as a polarizer for microwave antennas is proposed in this paper. Preliminary results have shown that circularly polarized (CP) radiation can be obtained from linearly polarized (LP) source antennas with the use of metasurface, antenna performance such as realized gain, efficiency and bandwidth are improved simultaneously. The metasurfaced antennas have a succinct non-resonant cavity in sub-wavelength (1/13 λ 0 ) format.read more
Citations
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Journal ArticleDOI
Linear-to-Circular Polarization Conversion Using Metasurface
TL;DR: In this article, a metasurface (MS) is used to convert the linearly polarized (LP) signal from a source antenna into a circularly polarized (CP) signal.
Journal ArticleDOI
Low-Profile Wideband Metasurface Antennas Using Characteristic Mode Analysis
Feng Han Lin,Zhi Ning Chen +1 more
TL;DR: In this article, a metasurface (MTS) antenna is proposed for low-profile and wideband operation based on characteristic mode analysis (CMA), where an MTS radiator formed by a diamond-slotted patch is fed by a microstrip line at its bottom through a slot centered on a ground plane.
Journal ArticleDOI
Design of Polarization Reconfigurable Antenna Using Metasurface
TL;DR: In this article, a planar polarization-reconfigurable metasurface antenna (PRMS) is proposed to operate at around 3.5 GHz with high-polarization isolation of larger than 15 dB.
Journal ArticleDOI
Frequency-Reconfigurable Antenna Using Metasurface
TL;DR: In this paper, a frequency-reconfigurable antenna designed using metasurface (MS) to operate at around 5 GHz is proposed and studied. But the MS placed atop the patch antenna behaves like a dielectric substrate and rotating the MS changes the equivalent relative permittivity of the substrate and hence the operating frequency of the FRMS antenna.
Journal ArticleDOI
A Single-Layer Circular Polarizer Based on Hybrid Meander Line and Loop Configuration
TL;DR: In this article, a linear-to-circular polarizer was proposed to transform linearly polarized field to circularly polarized field over a wide frequency band. But the proposed polarizer is robust under oblique and deflected illuminations.
References
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Journal ArticleDOI
Reflection and transmission properties of a metafilm: with an application to a controllable surface composed of resonant particles
TL;DR: In this article, the authors derived generalized sheet transition conditions (GSTCs) for the average (or "macroscopic") electromagnetic fields across a metafilm, which, when properly designed, can have certain desired reflection and transmission properties.
Journal ArticleDOI
A discussion on the interpretation and characterization of metafilms/metasurfaces: The two-dimensional equivalent of metamaterials
Christopher L. Holloway,Andrew Dienstfrey,Edward F. Kuester,John F. O'Hara,Abul Kalam Azad,Antoinette J. Taylor +5 more
TL;DR: In this article, an appropriate interpretation and characterization of metafilms and a retrieval approach for determining the uniquely defined quantities (the electric and magnetic susceptibilities of its constituent scatterers) are presented.
Journal ArticleDOI
A metamaterial surface for compact cavity resonators
TL;DR: In this paper, a metamaterial surface is formed by a thin dielectric slab on both sides of which "gangbuster" dipoles are printed inside a 1D cavity resonator, which has the effect of decreasing the resonant frequency.
Proceedings Article
Diamagnetic metasurfaces for performance enhancement of microstrip patch antennas
Kwok L. Chung,Sarawuth Chaimool +1 more
TL;DR: In this article, a cost-effective solution for enhanced performance of microstrip patch antennas is proposed, where the squarering type metasurfaces are introduced and proved to have diamagnetic characteristics by using two retrieval methods.
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Diamagnetic metasurfaces for performance enhancement of microstrip patch antennas
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