Lumped Element Transdirectional and Codirectional Coupler
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Authors
Abdelnaby, Salah
Date
Type
thesis
Language
eng
Keyword
Transdirectional , Codirectional , Contradirectional
Alternative Title
Abstract
Directional couplers are an essential component in several microwave applications. Lumped element directional couplers gained a lot of attention due to their compact size. This thesis represents a lumped element model for transdirectional and codirectional couplers. Unlike the classical inductive coupling used for modelling, capacitors are used to represent the coupling mechanism between the two coupled lines. Transdirectional couplers are recommended for many applications such as power dividers and power combiners because of the direct current (DC) isolation between the input and output ports. Generic design equations are demonstrated at any frequency with arbitrary coupling coefficients for the lumped element transdirectional coupler. In addition, design equations for lumped element codirectional couplers at any frequency with 3 dB coupling coefficient are presented. lumped element transdirectional coupler and codirectional coupler are designed and fabricated at 1 GHz to verify the design methodology. Both are fabricated using FR-4 substrate. There is good agreement between the simulated and measured results for both designs.
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CC0 1.0 Universal
Queen's University's Thesis/Dissertation Non-Exclusive License for Deposit to QSpace and Library and Archives Canada
ProQuest PhD and Master's Theses International Dissemination Agreement
Intellectual Property Guidelines at Queen's University
Copying and Preserving Your Thesis
This publication is made available by the authority of the copyright owner solely for the purpose of private study and research and may not be copied or reproduced except as permitted by the copyright laws without written authority from the copyright owner.
Queen's University's Thesis/Dissertation Non-Exclusive License for Deposit to QSpace and Library and Archives Canada
ProQuest PhD and Master's Theses International Dissemination Agreement
Intellectual Property Guidelines at Queen's University
Copying and Preserving Your Thesis
This publication is made available by the authority of the copyright owner solely for the purpose of private study and research and may not be copied or reproduced except as permitted by the copyright laws without written authority from the copyright owner.