Active N-path filters:Theory and design

M. Darvishi

    Research output: ThesisPhD Thesis - Research UT, graduation UT

    629 Downloads (Pure)


    Nowadays, wireless devices cover numerous wireless communication standards where almost for each one, a dierent frequency band has been allocated. There is a strong motivation towards SoC (System-on-Chip) solutions, where everything is integrated inside a chip to reduce the cost and form-factor of wireless devices. In radio-frequency receivers, due to the existence of large out-of-band blockers and a limited dynamic range, band-select ltering of the input signal is essential. Currently, most of the frontend circuitry of transceivers can be integrated on-chip. However, it is not possible to build integrated high-performance bandpass lters even after more than a decade research on this very topic. The inherent losses associated with on-chip inductors lead to lters having relatively high insertion losses, limited dynamic range and low outof- band rejection. For this reason, nowadays, most wireless systems utilize individual o-chip lters rather than fully integrated bandpass lters. This increases the size and cost. Moreover, most current wireless devices have several standards which leads to the exploitation of numerous o-chip bandpass lters which further exacerbate the size and cost issues.
    Original languageUndefined
    • Nauta, Bram, Supervisor
    • van der Zee, Ronan A.R., Advisor
    Thesis sponsors
    Award date25 Sept 2013
    Place of PublicationEnschede
    Print ISBNs978-90-365-0542-0
    Publication statusPublished - 25 Sept 2013


    • EWI-23437

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