The public discussion of the master’s student (Nadeen Adnan Shaaban) from the Department of Electronics and Communication Engineering on her thesis entitled (A multiport Microwave Planar Reflectometer for Non- Destructive Testing Applications) was held on Thursday 12/9/2024 in the discussion hall in the Department of Electronic Engineering and Communications.
The discussion committee consisted of the following respected members:
- Prof. Dr. Mohammed Nadhim Abbas (Chairman)
- Prof. Dr. Dhurgham Kamal Naji (Member)
- Lecturer. Dr. Murtadha Jawad Kadhim (Member)
- Asst. Prof. Dr. Ghassan Nihad Jawad (Supervisor)
The thesis aimed to design and implement a six-port reflectometer to be used to non-destructively inspect dielectric materials for fabrication defects after connecting it to a broadband antenna. This circuit is intended to replace the Vector Network Analyzer (VNA) equipment for microwave non-destructive testing applications.
Accordingly, the thesis came out with a set of recommendations, including:
- It is possible to use a six-port reflectometer to find the vector reflection coefficient over a relatively wide frequency band.
- A broadband highly-directive antenna can be used in conjunction to the reflectometer in order to radiate the microwave signals into the sample under test and receive the reflections from its internal discontinuities.
- The defects in the sample are to be identified after analyzing the vector reflection coefficient over the frequency range of interest to find the time-of-arrival for the reflection coming from each internal discontinuity.
After the scientific discussion by the members of the discussion committee, the researcher received a rating of (Very Good)
