REALIZATION OF LEFT HANDEDNESS THROUGH CSRRs AND SRRs IN MICROSTRIP LINE

• A new technique to realize left-handedness in microstrip tramsimission line is proposed by periodically loading combination of split-ring resonators (SRRs) and complementary split-ring resonators (CSRRs). Because of the negative permeability offered by SRRs and the negative permittivity of the CSRRs in the designed frequency (5 GHz), a pass-band is achieved. The design is compact in size, low profile and independent of substrate permittivity. It is also 50% smaller comparing with EBG structure. These features are valuable for future microwave devices like couplers, filters, etc. Comparisons between the simulated and measured results are discussed in details.

Nyckelord

complementary split-ring resonators

left-handed microstrip line

split-ring resonators

split-ring resonators

transmission-lines

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