Fully integrated passive UHF RFID transponder IC with 16.7-μW minimum RF input power. - Udo Karthaus; Martin Fischer (IEEE J. Solid State Circuits, 2003)

Write pulse Generator for 16x DVD recording with symmetric CMOS inverter ring oscillator. - Udo Karthaus; Stefan Schabel (IEEE J. Solid State Circuits, 2005)

A Differential Two-Pin Crystal Oscillator - Concept, Analysis, and Implementation. - Udo Karthaus (IEEE Trans. Circuits Syst. II Express Briefs, 2006)

A 6th order, 700-1100 MHz, 3.6 Gb/s RF bandpass ΣΔ ADC with two-tone SFDR 67.2 dB in 65nm CMOS. - Liang Zou; Udo Karthaus; Deepti Sukumaran; Nasser Mehrtash; Horst Wagner (ISCAS, 2014)

2.2 A +70dBm IIP3 single-ended electrical-balance duplexer in 0.18um SOI CMOS. - Barend van Liempd; Benjamin P. Hershberg; Kuba Raczkowski; Saneaki Ariumi; Udo Karthaus; Karl-Frederik Bink; Jan Craninckx (ISSCC, 2015)