DESIGN OF QUASI-ELLIPTIC MICROWAVE FILTER

• Main Author: ., CHRISTIAN MUTHAMBI
• Format: Final Year Project
• Language: English
• Published: UNIVERSITI TEKNOLOGI PETRONAS 2012
• Subjects: TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://utpedia.utp.edu.my/6377/1/Final%20Dissertation.pdf; http://utpedia.utp.edu.my/6377/

Microwave filters are components which provide frequency selectivity and usually designed to operate in megahertz to gigahertz range of frequencies. Basically the microwave filters discriminate between wanted signals which should pass through the filter and unwanted signals which will be blocked from being transmitted through the filter. The blocked signals are the interferences which we are not interested in them. These filters are used mainly in applications like broadcast radio, television, wireless communication and global system for mobile communications (GSM) [6, 7]. Almost all of the RF and microwave devices will include some kind of filtering. The challenge in designing the filter is to design a filter which is very small in size, with less weight and of minimum cost material, at the same time giving high frequency selectivity and low losses. This project is about to study and do literature review on the microwave filters which is used to design dual mode quasi-elliptic filter which is designed in Final Year Project II. The project introduction will cover background of study, problem statement, objectives, scope of study, relevancy and feasibility study. Literature review will cover aspects like, theory of transmission lines and two-port network, stepped impedance resonator, even-odd mode analysis, transmission zero, insertion loss, spurious resonance frequency, characteristics of different filters and the quasi-elliptic filter. The project methodology is also discussed in this project. Ideal state results together with microstrip results are presented in this report. All the literature view and research done on Final Year Project I is used to design the proposed design of the dual mode quasi-elliptic in Final Year Project II.