An extremely miniaturized ultra wide band 10–67 GHz Power Splitter in 65 nm CMOS Technology

An extremely compact power splitter based on a modified Wilkinson power divider is presented. The design optimization, based on the use of lumped component, yields state of the art RF performances and an unrivaled size reduction. The splitter is design to operate over 3 octaves (10 – 80 GHz) and measurements in the 10 – 67 GHz frequency range show an IL better then 0.8 dB, a power unbalance below 0.05 dB and isolation better than 10 dB starting from 35 GHz and which reaches a maximum of 27 dB at 60 GHz. Reflection coefficients for the three ports are better than −15 dB with a maximum of −20 dB in the 55 – 67 GHz band.