Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Tirdad Sowlati"'
Autor:
Phil Yang, Alan Wang, Tim R. Mercer, Hongyu Xie, Wei Liat Chan, Alfred Grau Besoli, Wei-Hong Chen, Michael Boers, Sissy Kyriazidou, Dmitriy Rozenblit, Koji Kimura, Vipin Kumar Aggarwal, Alireza Tarighat Mehrabani, Evangelos Kornaros, Nooshin Vakilian, Masoud Kahrizi, Bagher Afshar, Vincent Roussel, Bevin Perumana, Donghyup Shin, Khim Leng Low, Saikat Sarkar, Joy Zhang, Anna Papio Toda, Tirdad Sowlati, P. Sen, David Murphy, Kodavati Venkat, Ali Sajjadi, Seunghwan Yoon
Publikováno v:
IEEE Journal of Solid-State Circuits. 53:3640-3659
A 144-element phased array transceiver is realized using a modular tiled approach that supports 802.11ad, MCS12 single carrier 16-quadratic-amplitude modulation (QAM) 4.6 Gbps, in the 60-GHz band. It consists of a system-on-a chip (SOC) (MAC/PHY/BB t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60f115b8e5dd0f3335fda24adcce2188
https://doi.org/10.1109/jssc.2018.2874048
https://doi.org/10.1109/jssc.2018.2874048
Autor:
Hongyu Xie, Saikat Sarkar, Wei Liat Chan, Namik Kocaman, Wei-Hong Chen, K. Juan, Igor Elgorriaga, Kodavati Venkat, Guy Geshvindman, Dmitriy Rozenblit, Alireza Tarighat Mehrabani, Bo Pan, Tirdad Sowlati, Ali Sajjadi, Leo Shi, P. Sen, David Murphy, Seunghwan Yoon, Bevin Perumana, Vincent Roussel, C. Guan, Donghyup Shin, Khim Leng Low, Joy Zhang, Anna Papio Toda, Sissy Kyriazidou, Hans Eberhart, Bagher Afshar, Phil Yang, Mohyee Mikhemar, Michael Boers, Masoud Kahrizi, Vipin Kumar Aggarwal, Brima Ibrahim, Alan Wang, Nooshin Vakilian, Koji Kimura, Alfred Grau Besoli, Shelley Xu, Tim R. Mercer
Publikováno v:
ISSCC
The 802.11ad standard (WiGig) provides throughput speeds of multi-Gb/s covering tens of meters and uses beamforming in the four 2GHz-wide channels in the 60gHz ISM band. Conventional backhaul solutions, on the other hand, are designed with high gain
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13e9dd66acbf60f08e3d58446210ee9c
https://doi.org/10.1109/isscc.2018.8310186
https://doi.org/10.1109/isscc.2018.8310186
Autor:
Alvin Yu, Wei Liat Chan, Iason Vassiliou, Ersin Sengul, Hea Joung Kim, Siukai Mak, Alireza Tarighat, Mong Kuan Wong, Bevin Perumana, Adesh Garg, Theodoros Chalvatzis, Brima Ibrahim, Murat Mese, Hongyu Xie, Phil Yang, Tirdad Sowlati, Tsuifang Yeh, David Garrett, Ali Parsa, Amir Ibrahim, Ehsan Adabi, Namik Kocaman, Sean Nicolson, Andrew J. Blanksby, Vincent Roussel, Jesus Alfonso Castaneda, Seunghwan Yoon, Med Nariman, Alfred Grau Besoli, Po-Chao Huang, Durai Pandian Thirupathi, Bagher Afshar, Gerasimos Zochios, S. Kavadias, Chryssoula A. Kyriazidou, P. Sen, Hans Eberhart, Saikat Sarkar, Ahmadreza Rofougaran, Maryam Rofougaran, Michael Boers, Radha Srinivasan
Publikováno v:
ISSCC
The IEEE 802.11ad standard supports PHY rates up to 6.7Gb/s on four 2GHz-wide channels from 57 to 64GHz. A 60GHz system offers higher throughput than existing 802.11ac solutions but has several challenges for high-volume production including: integra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e33a3a66f0e493edf607935f436274ea
https://doi.org/10.1109/jssc.2014.2356462
https://doi.org/10.1109/jssc.2014.2356462
Autor:
David Steven Ripley, Tirdad Sowlati, Rajasekhar Pullela, E. McCarthy, Florinel G. Balteanu, Morten Damgaard, I. Gheorghe, Dmitriy Rozenblit, Dongsoo Koh
Publikováno v:
IEEE Journal of Solid-State Circuits. 39:2179-2189
An enhanced data-rates for GSM evolution (EDGE) transmitter using a nonlinear GSM-type PA is presented. It is based on a novel polar loop architecture that employs separate feedback control of the amplitude and the phase of the output signal. With th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3daf48eb63951f5fe9b2d19d1e962d0c
https://doi.org/10.1109/jssc.2004.836335
https://doi.org/10.1109/jssc.2004.836335
Autor:
Michael Boers, Iason Vassiliou, Saikat Sarkar, Sean Nicolson, Ehsan Adabi, Bagher Afshar, Bevin Perumana, Theodoros Chalvatzis, Spyros Kavadias, Padmanava Sen, Wei Liat Chan, Alvin Yu, Ali Parsa, Med Nariman, Seunghwan Yoon, Alfred Grau Besoli, Chryssoula Kyriazidou, Gerasimos Zochios, Namik Kocaman, Adesh Garg, Hans Eberhart, Phil Yang, Hongyu Xie, Hea Joung Kim, Alireza Tarighat, David Garrett, Andrew Blanksby, Mong Kuan Wong, Durai Pandian Thirupathi, Siukai Mak, Radha Srinivasan, Amir Ibrahim, Ersin Sengul, Vincent Roussel, Po-Chao Huang, Tsuifang Yeh, Murat Mese, Jesus Castaneda, Brima Ibrahim, Tirdad Sowlati, Maryam Rofougaran, Ahmadreza Rofougaran
Publikováno v:
2014 IEEE International Solid-State Circuits Conference Digest of Technical Papers (ISSCC).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a830fb71a770419084793a1031fdd02f
https://doi.org/10.1109/isscc.2014.6757462
https://doi.org/10.1109/isscc.2014.6757462
Autor:
Sudhakar Pamarti, Maryam Rofougaran, Reza Rofougaran, Tirdad Sowlati, Med Nariman, Farid Shirinfar
Publikováno v:
2013 IEEE Radio Frequency Integrated Circuits Symposium (RFIC).
Clustering and multi-core transformer coupling techniques are presented to improve phase noise, tuning range, and reliability of a mm-wave VCO. A proofof-concept design targeting the WiGig protocol is shown. Each cluster of VCOs covers one channel re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b006dd85496350b2ad83c1129f705171
https://doi.org/10.1109/rfic.2013.6569570
https://doi.org/10.1109/rfic.2013.6569570
Autor:
Sudhakar Pamarti, Tirdad Sowlati, Hossein Zarei, Sandeep Louis D'Souza, Bipul Agarwal, Roc Berenguer, Frank Chang
Publikováno v:
ISCAS
A programmable baseband anti-alias filter (AAF) for a passive-mixer-based, 1.8V, SAW-less, multi-band, multi-mode WEDGE (WCDMA/HSUPA/EGPRS) cellular transmitter (TX) is described. This paper presents an AAF which results in ultra-low, −170dBc/Hz, r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::913767751f739a1b41b0e95946392740
https://doi.org/10.1109/iscas.2011.5937599
https://doi.org/10.1109/iscas.2011.5937599
Autor:
Thomas Obkircher, Bala Ramachandran, Yunyoung Choi, Daniel Shum, Shahrzad Tadjpour, Amir Mahjoob, Jaleh Komaili, Masoud Kahrizi, Hamid R. Amir Firouzkouhi, Martin Vadkerti, Hasan Akyol, Mohamed El Said, Dean A. Badillo, Wei-Hong Chen, Dmitriy Rozenblit, Rajendra Suhanthan, Christophe Dantec, Stephane Richard Marie Wloczysiak, Mona Ahooie, Domino William J, Nooshin Vakilian, Raja Pullela, Tom Valencia, Darioush Agahi, Tirdad Sowlati, Utku Seckin, Aaron Paff
Publikováno v:
ISSCC
This paper describes a 2.5G cellular transceiver with standard DigRF interface, implemented in a low-cost 0.13µm CMOS process. This is the first CMOS single-chip, polar closed-loop transmitter, excluding the power amplifier (PA). This transmitter ac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4624160f4633e621315a05618263468
https://doi.org/10.1109/isscc.2009.4977333
https://doi.org/10.1109/isscc.2009.4977333
Autor:
Yong He, Shahrzad Tadjpour, Mohamed El Said, Thomas Obkircher, Doris Ching, Behzad Saeidi, Jaleh Komaili, Nader Damavandi, Stephane Richard Marie Wloczysiak, Aravind Loke, Hasan Akyol, Bala Ramachandran, Utku Seckin, Amir Mahjoob, Masoud Kahrizi, Joshua Cho, Aaron Paff, Dean A. Badillo, Georgi Taskov, Wei-Hong Chen, Dan Shum, David Guss, Dmitriy Rozenblit, Feng Shi, Yunyoung Choi, Hossein Zarei, Martin Vadkerti, Bipul Agarwal, Tom Valencia, Sandeep Louis D'Souza, Engin Pehlivanoglu, Elias Dagher, John E. Vasa, Domino William J, Raja Pullela, Hamid R. Amir Firouzkouhi, Gregory Williams, Chieh-Yu Hsieh, Suhanthan Rajendra, Imtiyaz Ron, Darioush Agahi, Tirdad Sowlati
Publikováno v:
ISSCC
There has been an increased demand for 3G cell phones that support multiple bands of operation and are backward compatible with the 2G/2.5G standard to provide coverage where 3G networks have not yet been fully deployed. The transceiver design for su
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a0c55bde17bbcad4317ff2b54bb7f00
https://doi.org/10.1109/isscc.2009.4977335
https://doi.org/10.1109/isscc.2009.4977335
Publikováno v:
ISSCC
A mixer topology that improves NF at low offset frequencies by reducing 1/f noise contributions is fabricated in 0.13mum CMOS. The NF at 10kHz is 9dB, which is 9dB less than a conventional mixer. The mixer also has 2dB higher gain, improved quadratur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8414c46884c764f1a3f0874dff29dc25
https://doi.org/10.1109/isscc.2006.1696244
https://doi.org/10.1109/isscc.2006.1696244