Graphene has attracted much interest as a future channel material in radio frequency electronics because of its superior electrical properties. Fabrication of a graphene integrated circuit without significantly degrading transistor performance has proven to be challenging, posing one of the major bottlenecks to compete with existing technologies. Here we present a fabrication method fully prese...

This paper proposes a novel digital receiver, based on a multilayer perceptron neural network architecture, which works in a radio communications environment. Training is carried out by the variable learning rate back-propagation algorithm with momentum in a supervised manner and a batch training mode. We present computer simulation results comparing the performance of this receiver against the...

The signal reception chain is an essential element for achieving the square kilometer array-low (SKA-low) system requirements in terms of high sensitivity and dynamic range. balance between gain, linearity, low power consumption, as well cost, are fundamental parameters that influence selection most suitable technology SKA-low. Further factors, such self-generated radio frequency (RF) interfere...

this project aims to design and implement a new Cognitive Radio (CR) receiver targeting the IEEE 802.22 standard as the first world-wide CR standard. In fact, this project starts with a study and a comparison of various CR receivers. This study leads to the presentation of a new approach that was adopted based on sub-band sensing technique for a CR receiver. In addition, we demonstrate a system...