Journal ArticleDOI
Bandwidth Enhancement of a Single-Feed Circularly Polarized Antenna Using a Metasurface: Metamaterial-based wideband CP rectangular microstrip antenna.
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TLDR
In this paper, a single-feed microstrip antenna (CPMA) has a simple configuration but is hindered by a narrow, 3-dB axial ratio (AR) bandwidth.Abstract:
Wireless systems manufacturers desire a low-profile, wideband, circularly polarized (CP) antenna. Generally, a single-feed CP microstrip antenna (CPMA) has a simple configuration but is hindered by a narrow, 3-dB axial ratio (AR) bandwidth. The bandwidth of a multiple-feed CPMA can be enhanced but requires a complicated and larger feeding network. Many techniques have been employed to improve AR bandwidth, such as using dual-feed, network-based structures [1], stacked patches [2]?[3], array antennas with sequential feeding network [4], and multilayered structures [5]. However, these CP antennas are based on multiradiating patches or complicated feeding structures.read more
Citations
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Journal ArticleDOI
Metantenna: When Metasurface Meets Antenna Again
Jiafu Wang,Yue Li,Zhi Hao Jiang,Ting Shi,Ming-Chun Tang,Ziheng Zhou,Zhi Ning Chen,Cheng-Wei Qiu +7 more
TL;DR: The development of metasurface has always been closely related to antennas, and most fundamental theories of metamurfaces are directly borrowed from antenna array theories; on the other hand, the development of antennas was flourished and expedited by progresses in metasura.
Journal ArticleDOI
A Metasurface-Based Low-Profile Wideband Circularly Polarized Patch Antenna for 5G Millimeter-Wave Systems
TL;DR: This paper presents the design and realization of a metasurface-based low-profile wideband Circularly Polarized (CP) patch antenna with high performance for Fifth-generation (5G) communication systems.
Journal ArticleDOI
Characteristic Mode Design of Wide Band Circularly Polarized Patch Antenna Consisting of H-Shaped Unit Cells
Chen Zhao,Chao-Fu Wang +1 more
TL;DR: It is revealed that higher order modes of the patch can be used to achieve circular polarization over a wideband of frequency and explains the property of wide band circular polarization.
Journal ArticleDOI
Compact Ultrawideband Circularly Polarized Weakly Coupled Patch Array Antenna
TL;DR: In this paper, a circularly polarized (CP) patch array antenna is proposed for ultrawideband operation by introducing weak-coupling mechanism into feeding network, feeding unit, and radiation structure, respectively.
Journal ArticleDOI
High-Efficient Circularly Polarized Magnetoelectric Dipole Antenna for 5G Applications Using Dual-Polarized Split-Ring Resonator Lens
TL;DR: A circularly polarized magnetoelectric dipole antenna with high efficiency based on printed ridge gap waveguide is presented in this article, where the antenna gain is improved by using a wideband lens in front of the antennas.
References
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Journal ArticleDOI
High-impedance electromagnetic surfaces with a forbidden frequency band
TL;DR: In this paper, a new type of metallic structure has been developed that is characterized by having high surface impedance, which is analogous to a corrugated metal surface in which the corrugations have been folded up into lumped-circuit elements and distributed in a two-dimensional lattice.
Journal ArticleDOI
Understanding and measuring circular polarization
TL;DR: An introduction to the topic of circular polarization is necessary to promote an understanding of the propagation aspects of modern communications system design and a simple laboratory-based project is described that requires the design, fabrication, and measurement of a crossed dipole antenna.
Journal ArticleDOI
Design of wideband circularly polarized aperture-coupled microstrip antennas
S.D. Targonski,David M. Pozar +1 more
TL;DR: In this article, two variations of a novel feeding technique for a wideband circularly polarized aperture-coupled microstrip antenna are described, and experimental results are shown for each antenna, and results for the two designs are compared.
Journal ArticleDOI
Design and Characterization of Miniaturized Patch Antennas Loaded With Complementary Split-Ring Resonators
TL;DR: In this paper, the design of compact patch antennas loaded with complementary split-ring resonators (CSRRs) and reactive impedance surface (RIS) is presented, where CSRR is incorporated on the patch as a shunt LC resonator providing a low resonance frequency and RIS is realized using the two-dimensional metallic patches printed on a metal-grounded substrate.
Journal ArticleDOI
Compact Circularly-Polarized Patch Antenna Loaded With Metamaterial Structures
TL;DR: In this article, a metamaterial-inspired low-profile patch antenna is proposed and studied for circularly-polarized (CP) radiation, which is realized by exciting two orthogonally polarized modes simultaneously which are located in the left-handed region.
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