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A new slow-wave coplanar waveguide on a semi-insulating GaAs substrate is described. The waveguide utilises a novel `cross-tieÂ¿ periodic structure, consisting of lossless media. A simple analysis and experiments show linear dispersion with 10 to 40 times reduction of wavelength. The line appears useful for miniaturisation of distributed circuits in GaAs monolithic microwave integrated circuits.
Date of Publication: December 10 1981