Bandwidth Enhancement of RMPA Using 2 Segment Labyrinth Metamaterial at THz


The past few years have been very eventful with respect to the evolution of the concept and implementation of left-handed materials (LHMs)”. This paper elucidates antenna parameter optimization using 2 Segment Labyrinth metamaterial 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 9.55 THz and operating range of 8.55 THz to 10.55 THz having RT Duroid (εr = 2.33) as substrate material. Magnetic properties of labyrinth resonator have been used to mathematically demonstrate the negative refraction. Nicolson Ross Wier (NRW) method has been used to retrieve the material parameters from transmission and reflection coefficient. Upon incorporation, bandwidth widens to around 4% and VSWR improves by approx 1.5%.

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P. Dawar and A. De, "Bandwidth Enhancement of RMPA Using 2 Segment Labyrinth Metamaterial at THz," Materials Sciences and Applications, Vol. 4 No. 10, 2013, pp. 579-588. doi: 10.4236/msa.2013.410071.

Conflicts of Interest

The authors declare no conflicts of interest.


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