Pekka Ukkonen

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We studied 3231 patients with acute central nervous system (CNS) symptoms of suspected viral origin to elucidate the current etiologic spectrum. In 46% of the cases, a viral finding was observed. Varicella-zoster virus (VZV) was the main agent associated with encephalitis, as well as meningitis and myelitis. VZV comprised 29% of all confirmed or probable(More)
—An analog baseband chain together with an analog to digital converter (ADC) for a Synthetic Aperture Radar (SAR) receiver implemented in 130nm CMOS technology is presented in this paper. The baseband and the ADC are integrated on a single chip, occupying 1.6mm 2 (I and Q branch) of active silicon area. The baseband is selectable between 50MHz and 160MHz(More)
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