Bandwidth broadening of the photodetector signal path

Leszek J. Opalski , Katarzyna Opalska


The paper addresses bandwidth widening of an analog signal path, composed of a high-speed infrared photodetector, an amplifier and a transmission line connecting the two. To investigate influence of design variables upon bandwidth a simplified model of the signal path is analyzed first. Several design scenarios are considered, including transmission line length adjustment, but also insertion of a simple LC corrector. Trade-offs between bandwidth and pass-band ripple level are revealed numerically, also for a realistic model of an infrared photodetector, wide band gain-block and a flexible strip line connection. It is shown that the simple T-corrector can result in substantial bandwidth increase. Interestingly enough, in most cases tested similar broadening can be provided by appropriate tuning of the connection line length only.
Author Leszek J. Opalski ISE
Leszek J. Opalski,,
- The Institute of Electronic Systems
, Katarzyna Opalska ISE
Katarzyna Opalska,,
- The Institute of Electronic Systems
Publication size in sheets0.5
Book Napieralski Andrzej (eds.): Proceedings of 23rd International Conference Mixed Design of Integrated Circuits and Systems MIXDES 2016, vol. CFP16MIX-CDR, 2016, Lodz University of Technology, Department of Microelectronics and Computer Science, ISBN 978-83-63578-08-4, 538 p.
projectResearch on measurement, circuit and signal theory and electronic circuits and systems. Project leader: Romaniuk Ryszard, , Phone: +48 22 234 7986, +48 22 234 5360, start date 15-06-2015, end date 31-12-2016, ISE/2015/DS, Completed
WEiTI Działalność statutowa
Languageen angielski
MIXDES_16_LOpalski.pdf (file archived - login or check accessibility on faculty) MIXDES_16_LOpalski.pdf 708.16 KB
Score (nominal)15
ScoreMinisterial score = 15.0, 27-03-2017, BookChapterMatConfByIndicator
Ministerial score (2013-2016) = 15.0, 27-03-2017, BookChapterMatConfByIndicator
Citation count*1 (2018-02-18)
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