A low-loss and low-crosstalk surface-wave transmission line (T-line) is demonstrated at sub-THz in CMOS. By introducing periodical sub-wavelength structures onto the metal transmission line, surface plasmon polaritons (SPP) are excited and propagate signals via a strongly localized surface wave. Two coupled SPP T-lines and two quasi-TEM T-lines are both fabricated on-chip, each with a separatio...

Based on transmission line theory, a 4-way wideband coupled-line Wilkinson power divider is designed by the authors, operating from 6 to 18 GHz. It established using novel manufacturing technology with 3D stacked micro-coaxial line, realising attractive advantages of low insertion (IL) loss and compact size. The simulated result shows that proposed 23.5 × 14.46 0.9 mm obtains maximum IL 0.42 dB...

Twenty years after the discovery of high temperature superconductors, practical superconducting wires made of these materials are now being manufactured, and trials of electrical and industrial applications including a train supported by magnetic levitation, a transmission line, a ship ’ s engine, and many others are being implemented. High temperature superconductors have again taken central s...