Zobrazeno 1 - 10
of 19
pro vyhledávání: '"John Leete"'
Autor:
K. Juan, Rahul Magoon, Amir Hadji-Abdolhamid, F. Etemadi, Yuyu Chang, Paul Mudge, Maryam Rofougaran, Zhimin Zhou, Behzad Nourani, C. Guan, J. Chiu, Med Nariman, Mohyee Mikhemar, Ning Liu, Behzad Saeidi, Peihua Ye, Behnam Mohammadi, Bernd Pregardier, Morteza Vadipour, Masoud Kahrizi, Alireza Tarighat, John Leete, Ahmadreza Rofougaran, Nooshin Vakilian, Gerasimos Theodoratos
Publikováno v:
IEEE Journal of Solid-State Circuits. 51:1066-1079
This work presents a receiver capable of receiving three simultaneous cellular channels with an aggregate bandwidth of 60 MHz, enabling a 300 Mb/s downlink rate. The receiver has 16 RF LNA ports covering the cellular bands within the 572–2700 MHz f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::19627cb3106beea7e8d7344c89e52d73
https://doi.org/10.1109/jssc.2016.2514438
https://doi.org/10.1109/jssc.2016.2514438
Autor:
Masoud Kahrizi, Bernd Pregardier, Rahul Magoon, Sining Zhou, Mohyee Mikhemar, Amir Hadji-Abdolhamid, Alireza Tarighat Mehrabani, Maryam Rofougaran, Dmitriy Rozenblit, Ahmad Mirzaei, Yuyu Chang, Behzad Saeidi, Ahmadreza Rofougaran, Behnam Mohammadi, John Leete, Med Nariman
Publikováno v:
IEEE Journal of Solid-State Circuits. 51:1080-1095
Carrier aggregation is a key feature of the 3GPP LTE-Advanced cellular network standard that combines multiple channels to support higher data rates and improve the utilization of fragmented spectrum holdings. This work presents a cellular transmitte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d000c452c75b1bc5135572a2a552a8f
https://doi.org/10.1109/jssc.2015.2511167
https://doi.org/10.1109/jssc.2015.2511167
Publikováno v:
IEEE Journal of Solid-State Circuits. 47:421-434
This paper describes the design topologies and considerations of a differential sinusoidal-output digitally controlled crystal oscillator (DCXO) intended for use in cellular applications. The oscillator has a fine-tuning range of ±44 ppm, approximat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::872461d5b90330be1cd2de85802b3fa3
https://doi.org/10.1109/jssc.2011.2172673
https://doi.org/10.1109/jssc.2011.2172673
Autor:
P. Lettieri, Yuyu Chang, Paul Chang, V. Rakhshani, Med Nariman, Ethan Chang, Ahmadreza Rofougaran, H. Vinh, A. Mirzaei, K. Juan, P. Kilcoyne, Calvin Chen, P. Suri, Zhimin Zhou, H. Tran, J. Chiu, Morteza Vadipour, M. Rofougaran, Amir Hadji-Abdolhamid, M. Koscal, Henrik T. Jensen, A. Yazdi, Behnam Mohammadi, B. Zhao, Alireza Zolfaghari, John Leete, Qiang Li, Joonsuk Kim, Ajat Hukkoo, L. Serrano, J. Shin, C. Guan, C. Wilcoxson, E. Raith, Hooman Darabi, J. Leung, Claude Hayek, Shr-Lung Chen
Publikováno v:
IEEE Journal of Solid-State Circuits. 46:870-882
A quad-band 2.5G SoC integrating all the RF, DSP, ARM, audio and other baseband processing functions into a single 65 nm CMOS die is described. The paper focuses on the radio portion mostly, and addresses the challenges of realizing a complete GSM/ED
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5054d427274372cd3acdf28b67885b57
https://doi.org/10.1109/jssc.2011.2109432
https://doi.org/10.1109/jssc.2011.2109432
Publikováno v:
IEEE Transactions on Circuits and Systems I: Regular Papers. 57:2353-2366
The performance of zero-IF receivers with current-driven passive mixers driven by 25% duty-cycle quadrature clocks is studied and analyzed. It is shown that, in general, these receivers outperform the ones that utilize passive mixers with 50% duty-cy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e294634fe7ee444541bd49952f1afe3
https://doi.org/10.1109/tcsi.2010.2043014
https://doi.org/10.1109/tcsi.2010.2043014
Analysis and Optimization of Current-Driven Passive Mixers in Narrowband Direct-Conversion Receivers
Publikováno v:
IEEE Journal of Solid-State Circuits. 44:2678-2688
Properties of the current-driven passive mixer are explored to maximize its performance in a zero-IF receiver. Since there is no reverse isolation between the RF and baseband sides of the mixer, the mixer reflects the baseband impedance to the RF and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::85fc0bc6988a9a4e4bd412a7a4601436
https://doi.org/10.1109/jssc.2009.2027937
https://doi.org/10.1109/jssc.2009.2027937
Autor:
Zhimin Zhou, J. Chiu, P. Lettieri, L. Serrano, Jesus Alfonso Castaneda, Henrik T. Jensen, Alireza Zolfaghari, R. Chen, Brima Ibrahim, Yuyu Chang, Behnam Mohammadi, A. Rofougaran, Paul Chang, Ali Medi, Hooman Darabi, P. Kilcoyne, Jared Welz, M. Nariman, Amir Hadji-Abdolhamid, S. Hasan, M. Rofougaran, Joonsuk Kim, B. Lee, John Leete, Kambiz Shoarinejad, B. Zhao, Iqbal Bhatti, Qiang Li, H. Tran
Publikováno v:
IEEE Communications Magazine. 46:146-152
This article reviews transmitter topologies for radio transceivers with emphasis on cellular applications. In the first section it discusses different architectures and the challenges in practical implementations. Then it presents a transmitter as pa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a647ffde175cc6034b29d2fe8c3320ab
https://doi.org/10.1109/mcom.2008.4623720
https://doi.org/10.1109/mcom.2008.4623720
Autor:
Ali Afsahi, M. Rofougaran, K.W.-K. Yeung, W. Morton, Seema B. Anand, Stephen Wu, Marcellus Forbes, Tom W. Kwan, Jerry Lin, R. Zhu, Jay Pattin, Jacob Rael, Stephen Au, Ahmadreza Rofougaran, John Leete, Adedayo Ojo, K. Chien, Keith Carter, Sumant Ranganathan, Ning Li, Meng-An Pan, C.P. Lee, P. van Rooyen, Arya Behzad, Hung-Ming Chien, Long Tran, Jason A. Trachewsky, Luis Gutierrez, Mark Gonikberg, M. Nariman, M. Seth, Alireza Zolfaghari, Eric B. San Jose Blecker, Razieh Roufoogaran, Mark Chambers
Publikováno v:
IEEE Journal of Solid-State Circuits. 43:1101-1118
A low-power 802.11abg SoC which achieves the best reported sensitivity as well as lowest reported power consumption and utilizes an extensive array of auto calibrations is reported. This SoC utilizes a two-antenna array receiver to build a single wei
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f7d2e5fc401a0bf1b5a803fa88ee7d92
https://doi.org/10.1109/jssc.2008.920338
https://doi.org/10.1109/jssc.2008.920338
Autor:
John Leete
The New Forest at War documents aspects of the social and military history of this unique area of Britain during the years of the Second World War. The Forest was on the front line of the massive build-up and launch of D-Day in June 1944. Although ma
A Fully Integrated MIMO Multiband Direct Conversion CMOS Transceiver for WLAN Applications (802.11n)
Autor:
C.P. Lee, J. Pattin, Hooman Darabi, M. Kappes, Jacob Rael, Benson Yeung, Keith Carter, Ahmadreza Rofougaran, Amit G. Bagchi, Rohit V. Gaikwad, Bojko Marholev, Arya Behzad, Qiang Li, Meng-An Pan, Stephen Wu, Jason A. Trachewsky, M. Rofougaran, J. Castanada, Hung-Ming Chien, T. Moorti, Alireza Zolfaghari, Stephen Au, John Leete, Dayo Ojo, Lijun Zhang, Joachim S. Hammerschmidt, Zhimin Zhou
Publikováno v:
ISSCC
802.11n is the latest offering from the IEEE standard committee tasked with enabling and enhancing WLAN systems. This standard utilizes several techniques to offer a much larger rate versus range than the legacy WLAN systems. A single-chip multiband
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e693da7b5970658509af1470ca352fc3
https://doi.org/10.1109/jssc.2007.908667
https://doi.org/10.1109/jssc.2007.908667