Design And Development Of Bandpass Filter Based On High Q Cavity Filter Structures For Microwave Imaging Technology

Mohd Rashid, Fatin Farhana (2017) Design And Development Of Bandpass Filter Based On High Q Cavity Filter Structures For Microwave Imaging Technology. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Microwave system is the new emerging technology that had shown a vast impact towards the modern generations due to the development and advanced microwave technology.The microwave technology is like the open door to the future where there are a massive potential regarding the radio frequencies applications.In order to accomplished this advanced technology,the design of high performance bandpass filter is very important.Filters are one of the most important component in microwave application that are used to discriminate between desired and undesired frequencies in devices.They have played the main key to distinguish the devices in term of devices’ performance and cost especially in the congested spectrum.Therefore, this thesis presents the design and development of bandpass filter based on high Q cavity filter structures for microwave imaging technology.The filter will provide high frequency selectivity and low insertion loss that will be the main criteria for high Q filter design which results in high performance. The design process is designed by the lossless Chebyshev lowpass prototype and followed by the transformation of the lowpass prototype to rectangular waveguide cavity bandpass filter.The simulation with the aid of EM Simulator will be tuned in order to obtain the desired design specification. Besides, the filter is designed with smaller size despite the high number of resonators.This will lead a design of bandpass filter with high performance.Since the design provides a high performance bandpass filter,it is great in for the use of microwave imaging technology.

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