AUTHOR: Russell Anderson ADVISOR: Michael Carter View presentation
Radio frequency circuits encompass a wide range of applications that are used across the globe and are essential for modern communication. Cellular communication happens at high frequencies which require unique solutions to complex electrical engineering problems. Typical electrical components behave differently at high frequencies which is why radio frequency or RF engineering is a growing field within electrical engineering. Modeling, testing, and characterizing high frequency systems is crucial for modern cellular communication. Major cellular carriers use multiple frequency bands for high-speed data transfer and wireless communication. These bands are used across the globe offering a unique opportunity for research in systems that can operate within any region of the world. This research demonstrates a realworld application for cellular signal communication while designing, building, and testing a high frequency system.
The Design, Development, and Testing of a Choice/Serial Reaction-Time Apparatus for EEG Instrumentation AUTHORS: Colin Carlson Ian Johnston ADVISORS: Ronald Croce Wayne Smith View presentation
Choice and serial reaction time tasks are commonly used to understand motor control, learning, and memory processes, and how these are affected by aging, neurodegenerative diseases, or other such factors. This project entailed the designing and testing of an apparatus for measuring choice and serial reaction times. Choice and serial are different types of reaction testing. Choice gives a random sequence of stimuli whereas serial gives a predetermined pattern of stimuli. The apparatus uses up to five reaction buttons which gives the option of up to five stimuli. With an Arduino microcontroller at the heart of the project, we were able to design and build the product with few problems and allowed for easy expandability in the future. For a stimulus we decided to go with a multicolored LED because of its simplicity and speed. When completed, this apparatus was supposed to connect to a trigger box via BNC and send time stamps when the stimulus appeared and when the correct response button was pressed. These timestamps can be used with electroencephalography and electromyography to carry out various reaction time and motor control studies. That was the plan anyway, however, a pandemic caused schoolwide closures and the project could not be fully completed. Even with the unfortunate COVID-19 pandemic, a lot was learned and accomplished. We learned a lot about programming, designing and problem solving, as well as gaining a lot of real world experience. Though we were unable to finish this project, there isn’t a lot left to be done, and it can be easily accomplished by whomever picks up this project next.
INTERDISCIPLINARY SCIENCE AND ENGINEERING SYMPOSIUM • 40
ELECTRICAL & COMPUTER ENGINEERING - HARDWARE DESIGN
Radio Frequency Power Amplifier for Cellular Signal Application