Design And Development Of Switchable Matched Bandstop To Bandpass Filter Using Ring Resonator

Amran, Nurul Aini (2016) Design And Development Of Switchable Matched Bandstop To Bandpass Filter Using Ring Resonator. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

In the era of advancement in modern technologies, the growth of the modern wireless communication system is increasing exponentially. This automatically creates a high demand for filters that have the properties of compact-sized as well as being able to provide a high performance to the spectral cognitive systems. Moreover, a reconfigurable designed filters are now placed in demand especially in the modern wireless communication market where the filter can offer a very compact realization of having a reduced-sized and switchable mode of operations rather than having a number of filter banks in order to reduce the complexity of the system. Therefore this project aims to propose a new technique to design a reconfigurable filter that is based on a dual-mode ring resonator which has a switchable properties from being a matched bandstop filter, to bandpass filter and vice versa. This filter can be known as Switchable Matched Bandstop to Bandpass Filter and is proposed to achieve a high quality factor in order to provide high performance to the system. The switchable properties are able to be achieved simply by adding varicap diodes into the network topology. A brief overview on the methodology of this project includes conducting library research and literature reviews, designing and simulating the filter design and lastly fabricating the design and analyzing the measured results. Upon completion of this project, the outcome includes a fabricated switchable matched bandstop to bandpass filter with varicap diodes as its switching elements. The filter will have an operating frequency of 1GHz and is able to provide a high quality factor which results in high performance of the system as well as being a compact-sized filter.

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