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We propose μLeech, a new embedded trusted platform module for next generation power scavenging devices. Such power scavenging devices are already widely deployed. For instance, the Square point-of-sale reader uses the microphone/speaker interface of a smartphone for communications and as power supply. While such devices are used as trusted devices in security critical applications in the wild, they...
This paper proposes a novel fully differential ultra-low voltage transimpedance amplifier (TIA) based on a CMOS translinear circuit. Following a simple bias strategy, its transimpedance gain can be adjusted to the desired accuracy either by means of an external resistor or using internal voltage and current references. To a first order approach, the transresistance results independent from technological...
GaN will play a strong role in advanced RF and microwave applications including 5G and satellite communications. The specifications of these systems will push next-gen GaN devices towards mm-wave operation. The challenges and opportunities for commercial deployment of GaN are identified and a variety of circuit designs are presented. A 5G high-linearity power amplifier MMIC in 0.20um GaN with Pout=36dBm...
Due to economies of scale and advancement in silicon technologies, powerful computing platforms are ushering a new era in computing and connectivity. These platforms are sometimes categorized under the umbrella of Internet of Things (IoT). In this paper, one such platform is used to design and build an Internet of Things solar tracker. The solar tracker predicts the sun position for maximum power...
The overwhelming interest in the Internet of Things (IoT) shown by the industry, academia, and hobbyists alike compel experts to declare that IoT could be the next disrupting technology since the Internet. This new paradigm has taken everyone in the computing field by storm, not because it is an unknown technology, but because of the vast opportunities that it promises to provide, and more importantly,...
Significant recent research activities and initiatives by local governments to establish resilient smart city infrastructures signal that time is right for smart cities in the near future. For example, sensors deployed within a city could monitor traffic patterns, perform environmental measurements and determine optimum traffic routing, when deployed in areas that have a power infrastructure. In this...
A fully integrated low-power 2.4GHz ZigBee transceiver with inductor-less RF front-end implemented in 180nm CMOS technology is demonstrated. The proposed double push-pull LNA collaborates with a current-mode down-converter to provide wideband low-noise reception, as well as the out-of-band blocker resilience. A sliding frequency synthesizer (FS) with low-frequency running VCO is employed to provide...
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