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Rooijers, C.T. (author), Huijsing, J.H. (author), Makinwa, K.A.A. (author)In chopper amplifiers, the interaction between the input signal and the chopper clock can cause intermodulation distortion (IMD). This is mainly due to finite amplifier bandwidth, which causes signal-dependent output spikes at the chopping transitions. Such chopper-induced IMD can be mitigated by the fill-in technique, which involves ping...journal article 2023
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Pashaeifar, M. (author), de Vreede, L.C.N. (author), Alavi, S.M. (author)This letter presents a novel load-modulation-based 3rd-order intermodulation distortion (IMD3) cancellation technique for class-B CMOS power amplifiers (PAs). In a class-B PA, the IMD3 generated by the 3rd-order transconductance ( $g_{m3}$ ) and the gain compression have opposite signs, and thus, they can cancel each other at specific bias...journal article 2022
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Rooijers, C.T. (author), Karmakar, S. (author), Kusuda, Y. (author), Huijsing, J.H. (author), Makinwa, K.A.A. (author)In chopper amplifiers, the interaction between the input signal and the chopper clock can give rise to intermodulation distortion (IMD). This chopper-induced IMD is mainly due to amplifier delay, which causes large pulses at the output of the amplifier's output chopper. This article proposes the use of a so-called fill-in technique to eliminate...journal article 2021
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van der Heijden, M.P. (author)This thesis presents circuit- and device-level linearization techniques to reduce the intermodulation distortion as well as the DC power consumption in RF amplifier circuits. As a key method to accomplish the research goals presented in Chapter 1, a so-called orthogonal design approach is introduced that allows for an uncompromised optimization...doctoral thesis 2005