Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Bassem Fahs"'
Publikováno v:
IEEE Photonics Journal, Vol 9, Iss 6, Pp 1-9 (2017)
A building-to-building free-space visible-light-communication link over more than 72 m link distance is presented. The link employs a dual data/clock optical channel from two 680-nm vertical-cavity surface-emitting laser laser-diodes. The receivers a
Externí odkaz:
https://doaj.org/article/eb1e102d661d4063a62e2629c8bd702a
Publikováno v:
IEEE Sensors Journal. 23:2375-2384
Publikováno v:
Analog Integrated Circuits and Signal Processing. 103:103-116
This paper studies the effect of amplitude and phase mismatch on the power conversion efficiency of differentially-drive rectifiers employing cross-coupled MOSFETs. The analysis begins by defining the different operational regions of the differential
Publikováno v:
IEEE Transactions on Very Large Scale Integration (VLSI) Systems. 26:1565-1574
This paper presents an RF-DC converter integrated circuit (IC) with ~307- $\mu \text{W}$ output power capable of powering individual health monitoring systems. The IC is designed with an on-chip adaptive impedance matching network to accommodate a wi
Publikováno v:
IEEE Photonics Technology Letters. 29:2207-2210
This letter presents a self-alignment system using a continuous and a proportional-to-position-error correction algorithm. The system is designed to address uninterrupted point-to-point high-speed line-of-sight optical wireless links. The alignment c
Autor:
Collin Hitchcock, Yiwen Zhang, Mona M. Hella, Javad Ghasemi, Asif Chowdhury, Payman Zarkesh-Ha, Bassem Fahs
Publikováno v:
IEEE Transactions on Electron Devices. 64:2859-2866
A photodiode (PD) structure based on ${N} \times {N}$ junctions is presented to enhance the responsivity in the blue region and extend the optical bandwidth. The use of subsections or multiple junctions increase the number of generated blue photo-car
Autor:
Valencia Joyner Koomson, Sagar Ray, Brandon Mazzara, Yiwen Zhang, Asif Chowdhury, Jeffrey Chellis, Bassem Fahs, Ali Mirvakili, Mona M. Hella, Yun Miao, Matthew J. Senneca, Javad Ghasemi, Payman Zarkesh-Ha
Publikováno v:
IEEE Photonics Technology Letters. 28:2846-2849
This letter presents an on – off -keying visible-light-communication (VLC) link realized over 6-m distance. The transmitter is implemented with a commercially available red LED source at 650 nm. While most of the reported high-performance VLC links
Publikováno v:
BCICTS
This paper presents a novel 220 GHz transmitter based on on-off keying (OOK) modulation in 130 nm SiGe BiCMOS process. An outphasing architecture is explored for the first time beyond 200 GHz to enable the use of nonlinear power amplifier-multiplier
Publikováno v:
2018 International Conference on Computer and Applications (ICCA).
This paper presents a second-order distortion improvement technique based on the mitigation of radiated local-oscillator (LO) to radio-frequency (RF) leakage. This leakage might become one of the major sources for IIP2 degradation due to massive floo
Autor:
Bassem Fahs, Javad Ghasemi, Shima Nezhadbadeh, Payman Zarkesh-Ha, Asif Chowdhury, Mona M. Hella, Alexander Neumann, S. R. J. Brueck
Publikováno v:
2017 IEEE SENSORS.
A honeycomb photodetector architecture is proposed for low-cost CMOS-compatible blue-enhanced sensing applications. In this paper, a physical model is developed to characterize the responsivity of honeycomb photodetectors. The model is then used to d