STF optimization of 1-bit CT ΣΔ modulators based on scaled loop filter coefficients. - Christoph Zorn; Christian Widemann; Timon Brückner; Maurits Ortmanns; Wolfgang Mathis (ECCTD, 2011)

Peaking reduced STF design for CT ΣΔ modulators with selective pole compensation. - Christoph Zorn; Christian Widemann; Timon Brückner; Maurits Ortmanns; Wolfgang Mathis (ISCAS, 2012)

Modeling the static and dynamic behavior of multi-layer varistors in the threshold voltage region depending on the DC operating point. - Christian Widemann; Stanislav Scheier; Stephan Frei; Wolfgang Mathis (ICECS, 2014)

A comparison of the Volterra series-based nonlinear S-parameters and X-parameters. - Christian Widemann; Harry Weber; Souren Schatz; Wolfgang Mathis (MIXDES, 2015)