This analysis seeks to identify whether (and to what extent) the variation in gain and frequency response observed in the T304 module affects the science results, and if so, how many and which circuit boards in the T304 require replacement in order to bring the variation within acceptable limits. The gain difference between the two types of circuit boards is being addressed by removing 7dB of e...

Nigeria needs to embrace technology and pursue private media ownership in order to achieve a democratic media. In recent years, mass media in Africa has become a force with augmenting power that has influenced government and regimes. A democratization of the African media is reliant on media ownership and accessibility of information. Within Nigeria, there is a government monopoly of the med...

We compare the maximum read range of passive ultra high frequency (UHF) radio frequency identification (RFID) tags that have been produced using different metal printing techniques, specifically inkjet printing and thermal transfer printing. We used the same substrate (THERMLfilm), antenna designs, and electronic circuitry in our comparison so as to isolate the effect of the metal printing. Due...

To expand the chemical capabilities of 3D printed structures generated from commercial thermoplastic printers, we have produced and printed polymer filaments that contain inorganic nanoparticles. TiO2 was dispersed into acrylonitrile butadiene styrene (ABS) and extruded into filaments with 1.75 mm diameters. We produced filaments with TiO2 compositions of 1%, 5%, and 10% (kg/kg) and printed str...

This thesis investigates the reliability of printed conductors on flexible substrates under cyclic bending. The topic is approached by studying the effects of several key design parameters on the bending lifetime of printed conductors under dynamic loading. In this thesis, the test specimens with various cross-sectional geometries were printed on different plastic and paper substrates. The test...

In the future, physical objects may interact with humans through a proposed Internet-like network known as the Internet-of-things (IoT). Although printed electronic labels and stickers represent a strategy for providing unique identifiers and wireless access to devices on the IoT, printed rectifiers currently operate at frequencies that are too low to enable direct communication and powering be...

We compare the maximum read range of passive ultra high frequency (UHF) radio frequency identification (RFID) tags that have been produced using different metal printing techniques, specifically inkjet printing and thermal transfer printing. We used the same substrate (THERMLfilm), antenna designs, and electronic circuitry in our comparison so as to isolate the effect of the metal printing. Due...