Reconstructing Aliased Frequency Spectra by Using Multiple Sample Rates

Autor: Mark Oude Alink, Maikel Huiskamp, Anne-Johan Annema, Bram Nauta, Harijot Singh Bindra

Publikováno v: IEEE transactions on circuits and systems I: regular papers, 69(3), 999-1012. IEEE

A novel algorithm is presented that can resolve frequency ambiguity that arises from sampling a set of signals spanning more than a single Nyquist zone. The method uses two samplers, each sampling the same input signal with different (non-integer mul

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa5e9f650a651f91556a40b4b69c497e
https://doi.org/10.1109/tcsi.2021.3131273

Frequency-Tunable antenna by input-impedance-tunable CMOS RF-Frontend

Autor: Nadia Haider, Mark Oude Alink, Diego Caratelli, Klumperink, Eric A. M., Yarovoy, Alexander G.

Publikováno v: European Microwave Intergrated Circuits Conference, EuMIC 2013, 308-311
STARTPAGE=308;ENDPAGE=311;TITLE=European Microwave Intergrated Circuits Conference, EuMIC 2013
Scopus-Elsevier
University of Twente Research Information (Pure Portal)

Variable-impedance matching between the antenna and the RF-frontend provides several potential advantages, including changing operational frequency, compensating for unintentional mismatch, improving scanning capability, and reducing noise and interf

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::66a37e6cc6524c78fe7ca452b630eb8c
https://research.utwente.nl/en/publications/5fb6c32f-c5cb-4baa-9c50-6b0d6df5642b

CMOS RF Transceiver considerations for Dynamic Spectrum Access

Autor: Mark Oude Alink, Klumperink, Eric A. M., Kokkeler, Andre B. J., Gerard Smit, Bram Nauta

Publikováno v: Cognitive Communications: Distributed Artificial Intelligence (DAI), Regulatory Policy and Economics, Implementation, 417-462
STARTPAGE=417;ENDPAGE=462;TITLE=Cognitive Communications: Distributed Artificial Intelligence (DAI), Regulatory Policy and Economics, Implementation
University of Twente Research Information (Pure Portal)

Cognitive Radio (CR), and in particular dynamic spectrum access (DSA), promises a much more efficient use of the spectrum by opportunistically using available frequencies. This asks for specific functionality, like spectrum sensing and frequency-agil

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::2f900f5164a1ea9f8b0f9a4e289fc200
https://research.utwente.nl/en/publications/cmos-rf-transceiver-considerations-for-dynamic-spectrum-access(e3dd65d4-1512-4999-958b-0c1daa75c4d7).html

Frequency reference generator

Autor: Alexander Sebastian Delke, Mark Oude Alink, Anne-Johan Annema, Yanyu Jin, Jos Verlinde, Bram Nauta

Publikováno v: University of Twente Research Information (Pure Portal)

A frequency reference generator includes ( i ) an integrated frequency source having drive circuitry that drives a reso nant ( e.g. , non - trimmable LC ) tank to generate an oscillator signal , ( ii ) at least one temperature sensor that generates a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::4847849c149ea28d0dc4e4d74cec4eeb
https://research.utwente.nl/en/publications/frequency-reference-generator(a04ea299-f71e-4e23-aabf-fbd3afdcfc75).html