Abstract
A novel metamaterial-inspired patch antenna is proposed, wherein a 2-segment SRR Labyrinth metamaterial is embedded inside the antenna substrate. It is observed that upon incorporation, the bandwidth widens to around 600% and VSWR improves by approx. 1.5% and the antenna is miniaturized by 400%. The Nicolson-Ross-Weir (NRW) method has been used to retrieve the material parameters from transmission and reflection coefficients.
Highlights
Nowadays, the trend is developing devices for wireless communication systems which have inherent high bandwidth, gain, and multiresonance
Around 1% error is seen between the simulation and the theoretical study of 2-segment split-ring resonators (SRRs)
A rectangular microstrip patch antenna is designed for 4.12 GHz as per the methodology shown in Figure 13 with design parameters as shown in Figure 14; the dielectric constant of the substrate is 4.2, FR4, and the thickness of the substrate is 3.2 mm
Summary
The trend is developing devices for wireless communication systems which have inherent high bandwidth, gain, and multiresonance. Various optimization techniques have been introduced to make patch antenna a successful candidate in wireless communication applications. “Metamaterials” (MTMs) are engineered to modify the bulk permeability and/or permittivity of the medium [1]. It is realized by placing, periodically, structures that alter the material parameters, with elements of size less than the wavelength of the incoming electromagnetic wave. It results in “meta,” i.e., “altered,” behaviour or behaviour unattainable by natural materials. A novel antenna structure is proposed with enhanced performance parameters and miniaturization using metamaterial
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