Synthesis and Design of Microwave Filters and Duplexers with Single and Dual Band Responses

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In this thesis the general Chebyshev filter synthesis procedure to generate transfer and reflection polynomials and coupling matrices were described. Key concepts such as coupled resonators, non-resonant nodes have been included. This is followed by microwave duplexer synthesis. Next, a technique to design dual band filter has been described including ways to achieve desired return loss and rejection levels at specific bands by manipulating the stopbands and transmission zeros. The concept of dual band filter synthesis has been applied on the synthesis of microwave duplexer to propose a method to synthesize dual band duplexers. Finally a numerical procedure using Cauchy ... continued below

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Mandal, Iman K. August 2013.

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  • Mandal, Iman K.

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Description

In this thesis the general Chebyshev filter synthesis procedure to generate transfer and reflection polynomials and coupling matrices were described. Key concepts such as coupled resonators, non-resonant nodes have been included. This is followed by microwave duplexer synthesis. Next, a technique to design dual band filter has been described including ways to achieve desired return loss and rejection levels at specific bands by manipulating the stopbands and transmission zeros. The concept of dual band filter synthesis has been applied on the synthesis of microwave duplexer to propose a method to synthesize dual band duplexers. Finally a numerical procedure using Cauchy method has been described to estimate the filter and duplexer polynomials from measured responses. The concepts in this thesis can be used to make microwave filters and duplexers more compact, efficient and cost effective.

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  • August 2013

Added to The UNT Digital Library

  • April 23, 2014, 8:20 p.m.

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  • Nov. 16, 2016, 2:35 p.m.

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Mandal, Iman K. Synthesis and Design of Microwave Filters and Duplexers with Single and Dual Band Responses, thesis, August 2013; Denton, Texas. (digital.library.unt.edu/ark:/67531/metadc283787/: accessed October 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .