news digest ♦ Lasers
to supply a wide range of wireless solutions and next- generation technologies addressing this enormous market opportunity.”
As cited in GSMA’s Vision of Smart Home: The Role of Mobile in the Home of the Future report, the combined revenue from the smart metering, home automation and home energy management segment is forecasted to generate more than $44 billion in 2016, according to market analyst companies ABI and Berg Insight. The overall revenue potential of the smart home is expected to be even higher as devices from the entertainment, health and home security sectors also become connected.
Skyworks’ Front-end Solutions
The SE2432L is a 2.4 gigahertz (GHz), high performance, fully integrated RF front-end module (FEM) designed for ZigBee® and smart-energy applications. Designed for ease-of-use and maximum flexibility, the FEM contains integrated, fully matched input baluns, integrated inter-stage matching and harmonic filter, and digital controls compatible with 1.6 – 3.6 volt (V) CMOS levels.
The RF blocks operate over a wide supply voltage range from 2.0 to 3.6 V, allowing the device to be used in battery-powered applications over a wide spectrum of the battery-discharge curve.
The SE5003L is a 5 GHz power amplifier (PA) offering high linear power for wireless local area network (WLAN) applications. Incorporating a power detector for closed- loop monitoring and control of the output power, the PA contains high integration for a simplified design, providing quicker time-to-market and higher application board production yield.
The PA also integrates the input, inter-stage and output match and power detector with 15 dB of dynamic range and a 3.8 GHz notch filter. Only six external decoupling capacitors are required to complete the design. For WLAN applications, the device meets the requirements of IEEE 802.11a/n, and delivers approximately 23 dBm of linear power at 5 V. In addition, the PA integrates the reference voltage generator.
Pricing and Availability
Skyworks’ front-end solutions are currently available for both sampling and production. For volume pricing, please contact
sales@skyworksinc.com.
MDS 2-D electronics leaps forward
Researchers in the US have advanced molybdenum disulphide (MoS2) technology. This semiconductor could be joined with graphene and hexagonal boron nitride to form FETs, integrated logic circuits, photodetectors and flexible optoelectronics
Scientists at Rice University and Oak Ridge National Laboratory (ORNL) have advanced on the goal of two- dimensional electronics.
They have developed a process to control the growth of uniform atomic layers of molybdenum disulphide (MDS).
Similar to silicon, MDS is an indirect band gap semiconductor. It is one of a trilogy of materials needed to make functioning 2-D electronic components. They may someday be the basis for the manufacture of devices so small they would be invisible to the naked eye.
The work undertaken by the scientists appears online this week in the journal Nature Materials.
The Rice labs of lead investigators Jun Lou, Pulickel Ajayan and Boris Yakobson, collaborated with Wigner Fellow Wu Zhou and staff scientist Juan-Carlos Idrobo at ORNL in an initiative that incorporated experimental and theoretical work.
The goals were to see if large, high-quality, atomically thin MDS sheets could be grown in a chemical vapour deposition (CVD) furnace and to analyse their characteristics. The hope is that MDS could be joined with graphene, which has no band gap, and hexagonal boron nitride (hBN), an insulator, to form field-effect transistors, integrated logic circuits, photodetectors and flexible optoelectronics.
“For truly atomic circuitry, this is important,” Lou says. “If we get this material to work, then we will have a set of materials to play with for complete, complicated devices.”
Last year, Lou and Ajayan revealed their success at making intricate patterns of intertwining graphene and hBN, among them the image of Rice’s owl mascot. But there was still a piece missing for the materials to be full partners in advanced electronic applications. By then, the researchers were already well into their study of MDS as a semiconducting solution.
“Two-dimensional materials have taken off,” Ajayan notes. “The study of graphene prompted research into a lot of 2-D materials; molybdenum disulphide is just one of them. Essentially, we are trying to span the whole range
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www.compoundsemiconductor.net July 2013
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