Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Ilia Kempi"'
Autor:
Okko Jarvinen, Vishnu Unnikrishnan, Ilia Kempi, Santeri Porrasmaa, Kari Stadius, Marko Kosunen, Jussi Ryynanen
This brief presents a new tristate-based delay cell to realize the recently proposed delay-based injection locking in ring oscillators. The circuit is then applied to implement a cyclic-coupled ring oscillator (CCRO). Compared to an inverter-based CC
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::38d6ef367ae059995c941b7e788ab431
https://aaltodoc.aalto.fi/handle/123456789/116872
https://aaltodoc.aalto.fi/handle/123456789/116872
Publikováno v:
2022 IEEE International Symposium on Circuits and Systems (ISCAS).
Publisher Copyright: © 2022 IEEE. Cyclic-coupled ring oscillators (CCRO), which consist of M ring oscillators each with N inverting stages, can be used in time-domain data converters to achieve sub-gate-delay resolution and improved phase noise perf
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::11d7728da3f2fca1636c7c0dd3fd341b
https://doi.org/10.1109/iscas48785.2022.9937816
https://doi.org/10.1109/iscas48785.2022.9937816
This letter presents a fully integrated on-chip digital mismatch compensation system for time-based time-interleaved (TI) data converters. The proposed digital compensation features blind calibration of gain, offset, and timing mismatches. The implem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a8ea9d913de324271ffc3d76e3022bc6
https://aaltodoc.aalto.fi/handle/123456789/113050
https://aaltodoc.aalto.fi/handle/123456789/113050
Publisher Copyright: © 2022 IEEE. Time-interleaved analog-to-digital converters (TIADC) require channel matching in terms of offset, gain, and sampling clock skew to achieve best data conversion performance. Conventionally, correction of skew mismat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::beec13f549d90336feb9914a1214c1ed
https://aaltodoc.aalto.fi/handle/123456789/118661
https://aaltodoc.aalto.fi/handle/123456789/118661
Publikováno v:
ISCAS
Funding Information: ACKNOWLEDGMENT This work has been funded by Academy of Finland, project number 269196. Publisher Copyright: © 2020 IEEE In this paper we propose two methods to boost the power supply rejection (PSR) of an output-capacitor-less l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e5a444c53a015dd77ff2ab1989add62e
https://aaltodoc.aalto.fi/handle/123456789/108932
https://aaltodoc.aalto.fi/handle/123456789/108932
Autor:
Juha Inkinen, Jussi Ryynanen, Zahra Khonsari, Yury Antonov, Mahwish Zahra, Mikko Valkama, Kari Stadius, Lauri Anttila, Toni Miilunpalo, Ilia Kempi, Marko Kosunen, Vishnu Unnikrishnan
Publikováno v:
ESSCIRC 2019-IEEE 45th European Solid State Circuits Conference (ESSCIRC)
ESSCIRC
ESSCIRC
openaire: EC/H2020/704947/EU//ADVANTAG5 This paper proposes a wideband 2-5GHz LO phase-shifting generator based on two digitally controlled delay lines. The concept is verified on a two-channel beamsteering direct conversion receiver prototype implem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::85209042b6ed43aa9285fd0265ddb1ba
https://aaltodoc.aalto.fi/handle/123456789/42095
https://aaltodoc.aalto.fi/handle/123456789/42095
Autor:
Andreas Hammer, Marko Kosunen, Olaitan Olabode, Vishnu Unnikrishnan, Ilia Kempi, Jussi Ryynanen
Publikováno v:
NORCAS
This paper describes a configurable hysteresis comparator for asynchronous sigma-delta modulators (ASDM). The proposed comparator provides coarse and fine tuning options for configuring the loop delay and hence the frequency of an ASDM. The post-layo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b44223fdfbee60d836a5d85e3bfe4f69
https://aaltodoc.aalto.fi/handle/123456789/36227
https://aaltodoc.aalto.fi/handle/123456789/36227
Autor:
Juha Inkinen, Kari Stadius, Nouman Ahmed, Zahra Khonsari, Yury Antonov, Mahwish Zahra, Ilia Kempi, Vishnu Unnikrishnan, Jussi Ryynanen
Publikováno v:
NEWCAS
This paper describes a digital-friendly passives-less time delay cell that generates programmable phase-shifts for down converting front-end in LO-based beamsteering receiver. Cell design supports 1.5–6.5GHz broadband receiver operation and cell la
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9155b7aa38de62d0fa5f60b849d19ee2
https://aaltodoc.aalto.fi/handle/123456789/36007
https://aaltodoc.aalto.fi/handle/123456789/36007
Autor:
Andreas Hammer, Vishnu Unnikrishnan, Olaitan Olabode, Nouman Ahmed, Ilia Kempi, Jussi Ryynanen, Marko Kosunen
Publikováno v:
NORCAS
This paper describes the hardware implementation of a custom communication protocol tailored for low-power telemetry data streaming over an inductive link. The application-specific features of typical RFID implementations such as random number genera
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba69d40d223e9e21fa544541560a928d
https://aaltodoc.aalto.fi/handle/123456789/35942
https://aaltodoc.aalto.fi/handle/123456789/35942
Autor:
Juha Inkinen, Kari Stadius, Anu Lehtovuori, Zahra Khonsari, Ilia Kempi, Mahwish Zahra, Lauri Anttila, Marko Kosunen, Jussi Ryynanen, Jaakko Haarla, Ville Viikari, Toni Miilunpalo, Vishnu Unnikrishnan, Mikko Valkama, Nouman Ahmed, Yury Antonov
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques
openaire: EC/H2020/704947/EU//ADVANTAG5 In this article, we present a four-element Vivaldi antenna array and beamsteering receiver IC for the fifth-generation mobile network (5G) new radio (NR). The implemented receiver utilizes a delay-based local-o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8c3a4c5dec066ab59871a7fcebb4f811