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Visible light communications (VLC) is the name given to an optical wireless communication system that carries information by modulating light in the visible spectrum (400–700 nm) that is principally used for illumination [1–3]. The communications signal is encoded on top of the illumination light. ...

Today wireless is becoming the leader in communication choices among users. It is not anymore a backup solution for nomadic travellers but really a newmoodnaturallyusedeverywhereevenwhenthewiredcommunicationsare possible. Many technologies evolve then continuously, changing the telecom- munication w ...

This book is concerned with integrated circuits and systems for wireless and mobile communications. Circuit techniques and implementation of reconfigurable low-voltage and low-power single-chip CMOS transceivers for multiband and multi- mode universal wireless communications are the focus of the boo ...

This paper reviews key factors to practical ESD protection design for RF and analog/mixed-signal (AMS) ICs, including general challenges emerging, ESD-RFIC interactions, RF ESD design optimization and prediction, RF ESD design characterization, ESD-RFIC co-design technique, etc. Practical design exa ...

Micro-Electro-Mechanical Systems (MEMS) are miniature systems composed ofintegratedelectricalandmechanicalpartstosenseand/orcontrolthingsonaµmscale. The concept of MEMS is attributed to Richard Feynman’s famous talk on December 29th, 1959 [2,3]. Dr. Feynman foresaw many aspects of future MEMS deve ...

Over many years, RF-MEMS have been a hot topic in research at the technology and device level. In particular, various kinds of mechanical Si-MEMS resonators and piezoelectric BAW (bulk acoustic wave) resonators have been developed. The BAW technology has made its way to commercial products for passi ...

GaN is an already well implanted semiconductor technology, widely diffused in the LED optoelectronics industry. For about 10 years, GaN devices have also been developed for RF wireless applications where they can replace Silicon transistors in some selected systems. That incursion in the RF field ha ...

To a quantum mechanic the whole universe is one godawful big interacting wavefunction ? but to the rest of us, it’s a world full of separate and distinguishable objects that hurt us when we kick them. At a few months of age, human children recognize objects, expect them to be permanent and move con ...

随着我国现代经济发展水平的不断提高，城市井盖数目逐渐增加。由于较多井盖被盗，致使路面形成陷阱，危害到过往车辆和行人安全。本文提出了一种基于ＺｉｇＢｅｅ无线网络的智能安全监控系统，解决分布式布控困难、不能实时监控、成本较高的问题。融合ＧＰＲＳ网络，设计相应的嵌入式网关和Ｗｅｂ服务器，实现了对缺失井盖的 ...

使用片式磁珠和片式电感的原因：是使用片式磁珠还是片式电感主;要还在于应用。在谐振电路中需要使用片式电感。而需要消除不需要的EMI噪声时，使用片式磁珠是最佳的选择。 磁珠是用来吸收超高频信号，象-一些RF电路，PLL，振荡电路，含超高频存储器电路（DDRSDRAM，RAMBUS等）都需要在电源输入部分加磁珠。而电感是一种 ...