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A far-field wireless power transfer system is proposed for supplying power to remote wireless sensors. The system is mainly composed of two devices: a wireless power transmitter and a wireless power receiver. The wireless power transmitter emits 4 W of power into a directional antenna. The wireless power receiver utilizes a bi-quad antenna and L-matching network for efficient power rectification....
The advent of the smartphone and its impact on manufacturing are changing the technology landscape. The cost of smartphone components has decreased drastically in recent years due to mass production. Elements that have benefited from this revolution include sensing modules. It is now reasonable to assume that advanced wireless devices are orientation aware. This, coupled with the asymmetrical radiation...
In this paper it will be shown how inductive coupling wireless power transfer (WPT) technology can be used to allow structural health monitoring of fiber composite structures. The system has been designed so that it can be embedded into the structure without compromising its mechanical properties. Results will demonstrate that high amounts of power can be transmitted to the embedded system while fulfilling...
This paper introduces antenna-based “smart skin” sensors that are integrated with RFIDs for wireless sensor networks. Furthermore, the paper shows wireless energy harvesting capabilities to enable battery-less, or sustainable, wireless sensor networks with “smart skin” sensor nodes. These sensors are highly applicable for industrial applications: carbon-nanotube-based gas sensor, pressure sensor,...
Development of reconfigurable RF resembles the Quest for the Holy Grail. It was started a long time ago; interesting developments have been achieved but it looks like it will never finish. However, as more and more microelectronic markets are under intense pressure, the need for reconfigurable RF systems is constantly growing. This paper aims at describing all current evolutions which push towards...
In this paper, we address the issue of transmission power control (TPC) in wireless ad hoc networks. Power control plays an important role in energy saving and network performance enhancement. However, the existing TPC schemes either face the problem of hidden and exposed terminal or have additional hardware requirements. We propose a novel distributed power control protocol, called Receiver Initiated...
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