This MQP report describes the implementation of a low noise amplifier (LNA) as a preamplifier for a 7T Magnetic Resonance Imaging (MRI) machine. The background explores the need for LNAs and the general noise, gain, and applications of LNAs. Our design targets a noise figure of at most 0.5dB in order to not corrupt the signal received by the 300 MHz MRI coil. We next discuss the testing of existing LNAs, as well as the design, assembly and testing process for our LNA. In our design process, we investigated the suitability of several designs and layouts for our amplifier. Also included in our report is a breakdown of the costs associated with the project, including the financial costs of testing materials and construction components, as well as the social and environmental impact of a theoretical large scale production run of this amplifier.

• This report represents the work of one or more WPI undergraduate students submitted to the faculty as evidence of completion of a degree requirement. WPI routinely publishes these reports on its website without editorial or peer review.

Creator

• Train, Brendan M.

Publisher

• Worcester Polytechnic Institute

Identifier

• 23421
• E-project-050621-221251

Advisor

• Ludwig, Reinhold

Year

• 2021

Date created

• 2021-05-06

Resource type

• Major Qualifying Project

Major

• Electrical & Computer Engineering

Rights statement

• In Copyright