Design of RF codes sensor for microwave imaging system

Al-Aidaros, Afnan Hamed Mohamed (2022) Design of RF codes sensor for microwave imaging system. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Computed Tomography (CT) and Magnetic Resonance Imaging (MRI) are two classic imaging equipment used in diagnostic techniques. However, these imaging technologies have several drawbacks, such as being quite expensive and not always available in many medical centres and other industries. Furthermore, these devices are bulky and have limited mobility. In addition, conventional CT scanners cannot be used regularly on the human body since the scanner exposes people to higher ionization radiation. The constraints of the equipment necessitate the development of an alternate imaging technology that is inexpensive in cost, compact in size, movable, and nonionizing. Microwave imaging equipment costs a fraction of other imaging techniques, making it a cost-effective technology. In addition, it is non-ionization radiation imaging technology. At the same time, microwave imaging systems need a more complex and powerful processing unit due to monostatic and bistatic configurations that need to rotate at every angle to cover all the area. This project aims to design four sensors based on wideband sensor techniques with notch frequencies characteristic for conventional multi-static microwave imaging to overcome all these limitations. The notch frequencies were developed by using multiple slots. All sensors are capable of generating RF codes signals at notch frequencies. These sensors work with 10 GHz bandwidth, which can be applied in microwave imaging applications.

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