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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. [ABSTRACT FROM AUTHOR]

A new metamaterial-inspired patch antenna is proposed, wherein swastika metamaterial is embedded into the substrate resonating at 3.85 THz, for Ultra-Wide Band applications. Miniaturization occurs by 44% with appearance of two secondary resonances around 2.5THz and 1.9THz, which is lower than the patch's ones and bandwidth broadens by 400%. The theoretical and simulated results validate the good performance of the proposed antenna system. [ABSTRACT FROM AUTHOR]

Left handed materials which have both negative permittivity and permeability, have been the area of potential research over a decade. This paper elucidates antenna parameter optimization using Double Negative Group (DNG) Electric SRR, having 19.13 THz as resonant frequency forming metamaterial array embedded in antenna substrate at high frequency (THz). Ansoft HFSS has been used to design and analyse the RMPA (Rectangular Microstrip Patch Antenna) with design frequency 22.5 THz and operating range of 20 THz to 25 THz having FR4 (εr = 4.4) as substrate material. Nicolson Ross Wier (NRW) method has been used to retrieve the material parameters from transmission and reflection coefficient. Upon incorporation, remarkable enhancement in parameters is observed whereby bandwidth increases by factor of 3.75, directivity increases by 5% and front to back lobe ratio improves by 31% with ESRR metamaterial. [ABSTRACT FROM AUTHOR]