Cross-talk reduction in metamaterial and non-uniform transmission lines

The electromagnetic compatibility analysis of RF circuitry is essential due to the adverse effects on sensitive components. Two metamaterial unit cells with slow-wave properties are presented for cross-talk reduction in transmission lines. The analytical expressions for computing equivalent lumped elements of the lines are then provided. The dispersion diagram is obtained from the parameters extracted from the measurement. A microstrip as the generator line and five identical CRLH unit cells as the receptor line are then used and a significant reduction in cross-talk is observed in comparison to conventional lines. A non-uniform transmission line with two different CRLH unit cells as the receptor line is then employed and found effective in further cross-talk reduction between the lines. The lengths of the lines and numbers of cells are kept the same in all lines for comparison. The simulated results are validated by measurements.