Van Liempd, B., Wambacq, P., & Craninckx, J. (2015). An Inductorless Electrical-Balance 360° Phase Shifter for 0.5-1.15GHz in 0.18µm CMOS. In Proceedings of the 10th European Microwave Integrated Circuits Conference (pp. 132-135). IEEE.

@inproceedings{2d5783605c2b400f99bf52822ce7e1a9,
title = "An Inductorless Electrical-Balance 360° Phase Shifter for 0.5-1.15GHz in 0.18µm CMOS",
abstract = "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.",
keywords = "integrated, tunable, passive, electrical-balance, phase shifters, CMOS, hybrid junctions",
author = "{Van Liempd}, Barend and Piet Wambacq and Jan Craninckx",
year = "2015",
language = "English",
pages = "132--135",
booktitle = "Proceedings of the 10th European Microwave Integrated Circuits Conference",
publisher = "IEEE",
note = "European Microwave Week ; Conference date: 05-09-2015 Through 11-09-2015",
}