Barend van Liempd won the EuMIC NXP Prize. Great! 05.09.2015
Barend van Liempd won the European Microwave Integrated Circuits (EuMIC) NXP Prize for paper "An Inductorless Electrical-Balance 360° Phase Shifter for 0.5-1.15GHz in 0.18µm CMOS" which was presentated at the European Microwave Week. This paper presents an integrated phase shifter based on electrical-balance operation. The phase shift of the circuit is set through the difference in impedance between two on chip tunable impedances. Each impedance consists of a parallel combination of a tunable resistor and a tunable capacitor. Measurements of the inductorless, 0.12mm2 prototype implemented in 0.18µm CMOS show a tunable range of 360° of phase shift across 0.5-1.15GHz with 12-bit tuning accuracy, while the 15 to 40dB insertion loss is acceptable for the target application of auxiliary self interference cancellation loops in in band full-duplex capable transceivers. The phase shifter has maximum phase/gain errors of 0.42° and 0.27dB per MHz, respectively.