Metamaterial-inspired Patch Antenna Research Articles

UWB Metamaterial-Loaded Antenna for C-Band Applications

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.

Equivalent model for the phase dynamics of a metamaterial inspired patch antenna

We present a simple model for a patch antenna based on metamaterial concepts operating in the microwave region with a bandwidth of 1.9–2.6 GHz. The small size and the relatively large operational band make this device exploitable for electromagnetic energy harvesting in urban environments. Describing the antenna by an equivalent circuit composed of a transmission line having right/left hand properties with a RC load, we can properly account for the phase dynamics in correspondence of resonances characterized by a specific handedness. The model is validated measuring the response of the reflection scattering parameter S1,1 for a copper prototype fabricated on a FR4 printed circuit board.