Design of 3D stacked wideband Wilkinson power divider based on rectangular micro‐coaxial process

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 over entire band. Measured results are obtained connecting this printed circuit board, showing structure suitable for microwave communication systems.