Kari Halonen
Nokia
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Publication
Featured researches published by Kari Halonen.
international symposium on circuits and systems | 2002
Jussi Ryynänen; Kalle Kivekäs; Jarkko Jussila; Aarno Pärssinen; Kari Halonen
This paper presents a study of LO self-mixing and RF gain control issues in direct conversion receivers. In cellular systems, that use continuous time frequency duplexing, these can constitute serious problems. The presented topic is of special importance when digitally programmable gain is implemented at the RF frequencies before the downconversion mixers, practically in the LNA. Furthermore, this paper gives circuit solutions to overcome this problem.
1997 2nd IEEE-CAS Region 8 Workshop on Analog and Mixed IC Design | 1997
M. Lansirinne; Saska Lindfors; Kimmo Koli; Kari Halonen
This paper discusses the design of a 50 MHz IF-sampling switched-capacitor /spl Delta//spl Sigma/-modulator with a 2.5 V supply voltage implemented in a 0.5 /spl mu/m BiCMOS process. The problems caused by the low analog supply voltage are addressed with special biasing and common-mode arrangements. Simulation results verifying a peak SNDR of 83 dB for a baseband signal are presented.
Archive | 1999
Saska Lindfors; A. Parssinen; Kari Halonen
Archive | 2010
Kimmo Koli; Kari Halonen
Archive | 2000
Saska Lindfors; Kari Halonen
Archive | 2000
Marko Kosunen; Kari Halonen
Archive | 2001
Ari Paasio; Asko Kananen; Mika Laiho; Kari Halonen
Archive | 2011
Lasse Aaltonen; Jakub Gronicz; Kari Halonen
Archive | 2001
Ari Paasio; Asko Kananen; Lauri Koskinen; Kari Halonen
Archive | 2010
Jarno Salomaa; Mikail Yucetas; Antti Kalanti; Lasse Aaltonen; Kari Halonen
