Design of a Compact Low Loss 2-Way Millimetre Wave Power Divider for Future Communication

In this paper, a rectangular-shaped power divider has been presented operating at 27.9 GHz. The power divider has achieved acceptable results for important parameters such as <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$S_{11}$</tex>, <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$S_{12}, S_{21}$</tex>, and <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$S_{22}$</tex>. The substrate employed for the power divider is Roger 3003 which has a thickness of 1.6 mm. This power divider provides a reflection coefficient of −12.2 dB and an insertion loss of 3.1 dB at 28 GHz. This ka-band T-junction power divider covers 68 % of the bandwidth. Dimensions of the ka-band T-junction power divider are <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$50 \times 80 ~\text{mm}$</tex>. Due to its dimensions and bandwidth this power divider is more suitable for millimetre wave applications like RADAR, beamforming, and 5G applications.