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D. R. Smith, Willie J. Padilla, D. C. Vier, S. C. NematNasser and S. Schultz, “Composite Medium with Simultaneously Negative Permeability and Permittivity,” Physical Review Letters, Vol. 84, No. 18, 2000, pp. 4184-4187. http://dx.doi.org/10.1103/PhysRevLett.84.4184

has been cited by the following article:

• TITLE: Bandwidth Enhancement of RMPA Using 2 Segment Labyrinth Metamaterial at THz

  AUTHORS: Parul Dawar, Asok De

  KEYWORDS: Antennas; Metamaterials (MTMs); Negative Index Material; Negative Refraction; RMPA; MNG; HFSS

  JOURNAL NAME: Materials Sciences and Applications, Vol.4 No.10, September 30, 2013

  ABSTRACT: 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%.