Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Zdravko Boos"'
Autor:
Yorgos Palaskas, Thomas Bauernfeind, Jorn Angel, Dimo Martev, Peter Preyler, Ashoke Ravi, Eshel Gordon, Ofir Degani, Timo Gossmann, Sven Hampel, Andreas Holm, Peter Plechinger, Rotem Banin, Thomas Mayer, Paolo Madoglio, Petra Schubert, Jakob Tomasik, Zdravko Boos
Publikováno v:
IEEE Journal of Solid-State Circuits. 55:1830-1841
A digital polar transmitter is presented that uses a digital-to-time-converter (DTC) for wide-channel phase modulation with multiband support. DTC-based phase modulation enables high-efficiency polar operation with high-efficiency RFDAC. The transmit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8db9802fe883b0064227ab916fc3413b
https://doi.org/10.1109/jssc.2020.2987698
https://doi.org/10.1109/jssc.2020.2987698
Autor:
Jakob Tomasik, Rotem Banin, Zdravko Boos, P. Schubert, Ashoke Ravi, T. Mayer, Ofir Degani, T. Bauernfeind, P. Plechinger, Sven Hampel, Peter Preyler, Yorgos Palaskas, Paolo Madoglio, Eshel Gordon, J. Angel
Publikováno v:
ESSCIRC
A digital polar transmitter is presented that uses a digital-to-time-converter (DTC) to enable high-efficiency polar RFDAC for multiband and wide-channel applications. The transmitter uses coarse division inherent in DTC operation to generate TX outp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5de5cd2ec87a9c47eb6ec2a3d2a3f95f
https://doi.org/10.1109/lssc.2019.2933802
https://doi.org/10.1109/lssc.2019.2933802
Autor:
Ofir Degani, Wolfgang Thomann, Doris Schmitt-Landsiedel, Rotem Banin, Bernd-Ulrich Klepser, Ashoke Ravi, Assaf Ben-Bassat, Zdravko Boos, Sebastian Sievert
Publikováno v:
IEEE Journal of Solid-State Circuits. 51:2992-3004
This paper presents a 2 GHz digital-to-time converter (DTC) with 244 fs time resolution. The DTC consists of a multi-modulus divider (MMD) and a phase interpolator (PI) as coarse and fine tuning blocks, respectively. Control logic is implemented to p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22d490e87381e49094ba70ea75be5f08
https://doi.org/10.1109/jssc.2016.2592620
https://doi.org/10.1109/jssc.2016.2592620
Autor:
Zdravko Boos, Thomas Hartig, Stephan Leuschner, Ulrich Steinacker, Franz Kuttner, Alan Paussa, Jonas Fritzin, Daniel Sira, Thomas Maletz, Daniel Gruber, Davide Ponton, José E. Moreira, Vahur Kampus, Marcus Groinig, Nenad Stevanovic, Michael Fulde, Hans Geltinger, Boris Kapfelsberger, Harald Pretl, Andreas Menkhoff, Alexander Belitzer, Simon Gruenberger, Michael Bruennert
Publikováno v:
ISSCC
The evolving trend for increasing data rates in cellular communication systems with limited and fragmented frequency spectrum requires enhanced spectral efficiency of today's and future communication standards. The resulting need for high-order modul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98389d579be6f2bd64bc9a85c94f6a3f
https://doi.org/10.1109/isscc.2017.7870339
https://doi.org/10.1109/isscc.2017.7870339
Autor:
Assaf Ben-Bassat, Bernd-Ulrich Klepser, Doris Schmitt-Landsiedel, Zdravko Boos, Sebastian Sievert, Ashoke Ravi, Ofir Degani, Rotem Banin
Publikováno v:
ISSCC
Digital-to-time converters (DTC) generate a clock with a time delay (or phase shift) based on a digital input code. They can be used in clock-and-data-recovery (CDR) circuits [1,2], in the feedback or reference path of a phase-locked loop (PLL) [3,4]
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d099b6298ec8b87dd7532b1260dbd1f5
https://doi.org/10.1109/isscc.2016.7417902
https://doi.org/10.1109/isscc.2016.7417902
Publikováno v:
IEEE Journal of Solid-State Circuits. 43:2434-2445
This paper presents a cancellation scheme of second order intermodulation distortion based on adaptive digital calibration of the RF downconversion mixer. The system utilizes a low-complexity LMS-based equalizer, which correlates differential mode di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c29f513249fa6a7273fcfda64df99949
https://doi.org/10.1109/jssc.2008.2005453
https://doi.org/10.1109/jssc.2008.2005453
Publikováno v:
IEEE Journal of Solid-State Circuits. 42:1669-1677
An integrated quadrature demodulator with an on-chip frequency divider is reported. The mixer consists of a transconductance stage, a passive current switching stage, and an operational amplifier output stage. A complementary input architecture has b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::41be40d15e24f574fc5086f18ae82eb7
https://doi.org/10.1109/jssc.2007.900294
https://doi.org/10.1109/jssc.2007.900294
Autor:
Alexander Belitzer, Timo Gossmann, Hans Geltinger, Andreas Menkhoff, Franz Kuttner, Jose Pedro Moreira, Markus Schimper, Thomas Bauernfeind, Peter Pfann, Zdravko Boos
Publikováno v:
ISSCC
The constantly growing quest for global roaming with a fast mobile internet access has further increased demand for multiband 3G cell phones supporting also 2G/2.5G standards, in order to provide full coverage any time, any place. In order to substan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec8dff1b295a66a22a0e9547010022fe
https://doi.org/10.1109/isscc.2011.5746361
https://doi.org/10.1109/isscc.2011.5746361
Autor:
Zdravko Boos, T. Mayer, Robert Weigel, Y. Liu, Yangjian Chen, Linus Maurer, Christian Wicpalek, U. Vollenbruch
Publikováno v:
2008 IEEE Radio and Wireless Symposium.
This paper presents a new phase detector in an all digital phase locked loop which converts the phase difference between one reference clock edge and one divided oscillator edge into a digital word. This digital word can be converted into a digital r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ca06171c23428663d95b2a55016efe1
https://doi.org/10.1109/rws.2008.4463454
https://doi.org/10.1109/rws.2008.4463454
Publikováno v:
ISSCC
A low-voltage I/Q downconverter with digital adaptive IIP2 calibration is presented. The system maintains high linearity over time by continuously updating tuning codes in response to varying operating conditions. A prototype is fabricated in a 0.13
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fefec203ad4f821174ee8ebc8f1cf27a
https://doi.org/10.1109/isscc.2007.373600
https://doi.org/10.1109/isscc.2007.373600