Higher-order modelling of the diffusion dynamics in a bipolar transistor. - Kari Lehtinen; Markku Sipila; Veikko Porra (Int. J. Circuit Theory Appl., 1991)

Programmable analogue vlsi cnn chip with local digital logic. - Kari Halonen; Veikko Porra; Tamás Roska; Leon O. Chua (Int. J. Circuit Theory Appl., 1992)

Integrated BiCMOS IF-Modules for Mobile Telecommunication Applications. - Kari Halonen; Veikko Porra; P. Alinikula; Kimmo Koli; H. Riihihuhta; J. Hännikäinen (ISCAS, 1994)

CMOS Implementation of Associative Memory Using Cellular Neural Network Having Adjustable Template Coefficients. - Ari Paasio; Kari Halonen; Veikko Porra (ISCAS, 1994)

Low-voltage, micropower weak-inversion CMOS GM-C filter. - Chung-Chih Hung; Kari Halonen; Veikko Porra; Mohammed Ismail 001 (ICECS, 1996)

VLSI implementation of cellular neural network universal machine. - Ari Paasio; Adam Dawidziuk; Veikko Porra (ICECS, 1996)

Implementation of cellular neural network operating with bipolar images. - Ari Paasio; Adam Dawidziuk; Veikko Porra (ICNN, 1996)

A low-voltage, low-power CMOS fifth-order elliptic GM-C filter for baseband mobile, wireless communication. - Chung-Chih Hung; Kari Halonen; Mohammed Ismail 001; Veikko Porra; Akira Hyogo (IEEE Trans. Circuits Syst. Video Technol., 1997)

Design considerations for a linear modulation DCSK chaos-based radio. - Manuel Delgado-Restituto; Ángel Rodríguez-Vázquez; Veikko Porra (ICECS, 1998)

A 3 GHz silicon-BJT active resonator and filter. - Risto Kaunisto; Kari Stadius; Veikko Porra (ICECS, 1998)

A 48 by 48 CNN chip operating with B/W images. - Ari Paasio; Asko Kananen; Kari Halonen; Veikko Porra (ICECS, 1998)

A high frequency harmonic VCO with an artificial varactor. - Kari Stadius; Risto Kaunisto; Veikko Porra (ICECS, 1998)

Varactor diodeless harmonic VCOs for GHz-range applications. - Kari Stadius; Risto Kaunisto; Veikko Porra (ICECS, 1999)

A QCIF Resolution Binary I/O CNN-UM Chip. - Ari Paasio; Asko Kananen; Kari Halonen; Veikko Porra (J. VLSI Signal Process., 1999)

Theoretical connection between PN-sequences and chaos makes simple FPGA pseudo-chaos sources possible. - A. Mozsáry; L. Azzinari; K. Król; Veikko Porra (ICECS, 2001)

Monolithic tunable capacitors for RF applications. - Kari Stadius; Risto Kaunisto; Veikko Porra (ISCAS (1), 2001)