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In this paper, feed-forward pre-equalization in conjunction with a PAM modulation scheme are proposed for use in wireless visible light communication (VLC) systems in order to enable the transmission of data rates >1 Gb/s. Simulation results demonstrate that simple few-tap feed-forward pre-equalization is able to remove the intersymbol interference caused by the limited link bandwidth of a line...
A uni-traveling-carrier photodetector (UTC-PD) with dipole-doped structure at the InGaAs/InP interface has been designed, fabricated and characterized. The device transit time delay and RC time delay was extracted using an equivalent circuit model. A transit time delay time less than 4.5 ps was obtained with a junction reverse bias lager than 4 V. The results suggest that the current-blocking at InGaAs/InP...
The stripline fed 60GHz CP 2x4 patch array and LP grid array were designed in LTCC technology. The arrays with GCPW-stripline transitions were fabricated and measured in terms of the impedance matching performance and polarization characteristics. The wireless access advantage of the CP patch array over the LP grid array antenna is demonstrated.
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