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Square-shaped Split-ring resonator(SRR) lefthand Material(LHM) is proposed in Radio frequency band and S parameter extraction method was used to extract the effective permittivity and permittivity are all negative, hence verifying the nature of its left-hand properties. LHM is put on to dielectric layer of the center frequency of 920 MHZ microstrip patch antenna with 50 Ω coaxial feed. Then the left-hand microstrip patch antenna and conventional antenna are compared, finding that return loss S11 down from- 30 dB to-60 dB.
Square-shaped Split-ring resonator (SRR) lefthand Material (LHM) is proposed in Radio frequency band and S parameter extraction method was used to extract the effective permittivity and permittivity are all negative, tried verifying the nature of its left-hand properties. LHM is put on to the dielectric layer of the center frequency of 920 MHZ microstrip patch antenna with 50 Ω coaxial feed. Then the left-hand microstrip patch antenna and conventional antenna are compared, finding that return loss S11 down from -30 dB to-60 dB.