Date of Award


Document Type


Degree Name

Master of Science (MS)

Legacy Department

Electrical Engineering


Wang, Pingshan

Committee Member

Martin, Anthony Q

Committee Member

Harrell, William R


The thesis investigates additive RF interferometer sensing technique, which is highly sensitive compared to other RF sensing methods. First, mathematical descriptions are given to illustrate how the RF interferometer works. Then an analysis of single particle passing over a coplanar waveguide in carrier liquid is presented, which poses as a difficulty to simulation software. The analysis is combined with interferometer mathematical equations and validated by a particle measurement in an interferometer. The interferometer sensitivity is enhanced by incorporating filters as sensing devices and functionally expanded by using the reflection coefficients. In the end, an application of gas measurement with the RF interferometer is presented. The test system is built and preliminary results are obtained, which provides guidance for future work.

Included in

Engineering Commons