No abstract

In this paper, aerosol jet printing technology is assessed for D-band RF applications for the first time. It describes the fabrication process, the technology assessment and the characterization of coplanar waveguides (CPW) lines and CPW to microstrip transitions on liquid crystal polymer (LCP) in the D band using silver nanoparticle aerosol jet printing process. Feature sizes with a resolution of 10 !lm, which is the finest resolution among all of the digital printing technologies, were realized successfully. The conductivity of the sintered silver structures was half to that of bulk silver after sintering at temperatures up to 200°C. Printed transmission lines demonstrated losses of 0.35 dB/mm at 110 GHz and 0.51 dB/mm at 170 GHz that are less than that of the insertion loss of the inkjet printing lines by an order of magnitude.

In this article, a notably advanced meter with real-time data detection capability, high reliability, selfpowered and low fabrication cost is presented. It is intended for use in smart grid applications. Compared with the old local grid, knowing the system status in real time is achieved as a first step to control a smart grid reliably. Our framework provides insights about an energy harvesting sensor network to monitor the smart grid's power distribution. This provides the information needed to make a compromise between efficiency and reliability of the whole grid system. The meter design shown in this paper operates automatically and is considered with installation difficulties and environmental effects such as position displacement due to weather, electrical and magnetic field interaction and so on. Each meter collects current, voltage and associated phase angles and proceed to carry a two-way communication to form a sensors net using XBee-PRO DigiMesh 2.4 which is a RF commercial communication module.

No abstract