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In this paper a novel two-layered metasurface (MS) based antenna is proposed and simulated results are presented. Using the proposed MS as an artificial ground plane for a monopole antenna, the integrated antenna realizes both size miniaturization and dual-band functionality. The footprint of the proposed integrated antenna is only 0. 06λq with two operation bands around 4.1 and 5.1 GHz.
A wideband stacked patch antenna is presented in this paper. The proposed antenna consists of a stacked structure and rectangular shell under the finite ground of the antenna. A 91.7% bandwidth is obtained by carefully arranging the relative permittivity of the substrates of the upper and lower layer. The proposed antenna is suitable for the modern communication systems.
In this paper a metasurface-based circularly polarized antenna is designed and simulated. The metasurface (MS) loaded with interdigital capacitors and titled slots are proposed to convert linearly polarized (LP) signal from the feeding monopole into circularly polarized (CP) signal radiated at broadside. The MS based antenna has a compact footprint of 0.31λ02 and a thickness of 0.07λ0. According to...
In this paper a newly designed metasurface (MS) loaded miniaturized antenna is proposed and simulated. The double layered MS loaded with complementary split ring resonators (CSRRs) acts as the ground plane for a planar feeding monopole antenna. The antenna has a compact footprint of 0.11λ02 and a thickness of 0.07 λ0. The simulation results show that a wide −10 dB S11 bandwidth of 9% is realized....
Many new, high-performance antenna designs have employed optimization strategies to tune their geometric parameters for optimal electromagnetic properties such as return loss and gain. Several antenna designs are presented here that demonstrate the ability of these optimization strategies to competently fulfill the designer's performance criteria. Designs such as the anisotropic zero-index and low-index...
A novel technique to design and optimize a low profile wire antenna with high broadside gain is introduced. The desired antenna properties are achieved by loading an electrically long inverted-F antenna (IFA) with two optimal wire stubs along the body of the antenna. The best lengths and locations of the stubs as well as other antenna design parameters were selected by a new nature-inspired technique...
In this paper, we present both the theory and design of an anisotropic metamaterial lens for antenna applications. This type of lens requires simple effective medium tensor parameters to achieve highly-directive radiated beams, which differs from more conventional isotropic zero-index metamaterial lenses. Making use of the less dispersive low permittivity and/or permeability band, the lens is promising...
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