Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Hamidreza Aghasi"'
Publikováno v:
IEEE Access, Vol 11, Pp 20897-20911 (2023)
This paper provides an overview of broadband terahertz antenna elements and arrays for integrated communication systems. The fundamental challenges of integrated on-chip and off-chip antenna design, the trade-offs between performance metrics, and the
Externí odkaz:
https://doaj.org/article/6ff81e6b2dee40ec9e06692a4e6e79ea
Autor:
Md Hedayatullah Maktoomi, Zisong Wang, Huan Wang, Soheil Saadat, Payam Heydari, Hamidreza Aghasi
Publikováno v:
IEEE Transactions on Antennas and Propagation. 70:10047-10061
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f94ebb0135b54841799e87cb2f3c3c5b
https://doi.org/10.1109/tap.2022.3185497
https://doi.org/10.1109/tap.2022.3185497
Publikováno v:
2022 IEEE Radio Frequency Integrated Circuits Symposium (RFIC).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::00c6df999047513af4ab0402b95dbb96
https://doi.org/10.1109/rfic54546.2022.9863140
https://doi.org/10.1109/rfic54546.2022.9863140
Autor:
Hamidreza Aghasi, Payam Heydari
Publikováno v:
IEEE Communications Magazine. 58:70-76
This article provides an overview of current and future implementations of high-resolution millimeter-wave active sensor technologies for applications in cyber-physical systems. The two major groups of active sensors, that is, pulsed and frequency mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db4cdba0d3e8e9ceda82d70b35545b3d
https://doi.org/10.1109/mcom.001.2000544
https://doi.org/10.1109/mcom.001.2000544
Autor:
Farhad Shirani, Hamidreza Aghasi
Analog to Digital Converters (ADCs) are a major contributor to the energy consumption on the receiver side of millimeter-wave multiple-input multiple-output (MIMO) systems with large antenna arrays. Consequently, there has been significant interest i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a8dd1a893f3eb06ba62cd7b97d979284
http://arxiv.org/abs/2202.02860
http://arxiv.org/abs/2202.02860
Autor:
Md Hedayatullah Maktoomi, Zisong Wang, Huan Wang, Soheil Saadat, Payam Heydari, Hamidreza Aghasi
Publikováno v:
2021 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (APS/URSI).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::136bea379774b5a2e1c819ed0f7c3727
https://doi.org/10.1109/aps/ursi47566.2021.9703720
https://doi.org/10.1109/aps/ursi47566.2021.9703720
Autor:
Ehsan Afshari, Hamidreza Aghasi
Publikováno v:
IEEE Solid-State Circuits Letters. 1:106-109
This letter presents an 88-GHz fundamental oscillator. By utilizing a device-centric design technique as well as the self-feeding oscillator topology, the fundamental power generation is optimized. The circuit is fabricated in 130-nm SiGe BiCMOS tech
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3a8f180ae5c89aa8ed70e675c968a6d
https://doi.org/10.1109/lssc.2018.2875832
https://doi.org/10.1109/lssc.2018.2875832
Publikováno v:
IEEE Journal of Solid-State Circuits. 52:406-422
We propose a nonlinear device model and a systematic methodology to generate maximum power at any desired harmonic. The proposed power optimization technique is based on the Volterra-Wiener theory of nonlinear systems. By manipulating the device nonl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2718b78de44e629a94df625261144746
https://doi.org/10.1109/jssc.2016.2627547
https://doi.org/10.1109/jssc.2016.2627547
Publikováno v:
CICC
This paper is an overview of the advances of the integrated sub-THz/THz imaging technology. The challenges to implement fully integrated imaging systems at this frequency range are discussed and solutions to overcome them are presented. We review the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::428ba6a665a8534275fb65d4ac8a4ad9
https://doi.org/10.1109/cicc.2019.8780262
https://doi.org/10.1109/cicc.2019.8780262
Autor:
Andreia Cathelin, Hani Sherry, Ehsan Afshari, Chen Jiang, Ruonan Han, Hamidreza Aghasi, Mohammad Javad Emadi, Ali Mostajeran
Publikováno v:
IEEE Journal of Solid-State Circuits. 50:2935-2947
A high-power 320 GHz transmitter using 130 nm SiGe BiCMOS technology ( $f_{T}/f_{\max} =$ 220/280 GHz) is reported. This transmitter consists of a 4 × 4 array of radiators based on coupled harmonic oscillators. By incorporating a signal filter struc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab466b6ea5fad4c1444f9df8accf7397
https://doi.org/10.1109/jssc.2015.2471847
https://doi.org/10.1109/jssc.2015.2471847