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On Broadband Matching of Multiport Electrical Networks with Applications

On Broadband Matching of Multiport Electrical Networks with Applications
Author: Wai-Kai Chen
Publisher:
Total Pages: 244
Release: 1988
Genre:
ISBN:

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The objective of the research is to solve several problems of fundamental importance in the design of broadband matching networks and multiplexers. More specifically, we investigate the following: (1) Obtain a set of coefficient constraints that are necessary and sufficient for a real rational matrix to be the scattering matrix of a passive n-port network normalizing to the n prescribed non-foster positive-real impedances. (2) Derive a set of coefficient constraints that are necessary and sufficient for the existence of a lossless reciprocal n-port network, which, when terminated in the n given frequency-dependent loads, realizes the prescribed transducer power-gain characteristics among its ports. Study the relationships between the broadband matching of many ports and the design theory of multiplexers and apply the known results in the theory of broadband matching to minimize the interaction effects of the individual channels.


Theory and Design of Broadband Matching Networks

Theory and Design of Broadband Matching Networks
Author: Wai-Kai Chen
Publisher: Elsevier
Total Pages: 449
Release: 2013-10-22
Genre: Technology & Engineering
ISBN: 1483159442

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Theory and Design of Broadband Matching Networks centers on the network theory and its applications to the design of broadband matching networks and amplifiers. Organized into five chapters, this book begins with a description of the foundation of network theory. Chapter 2 gives a fairly complete exposition of the scattering matrix associated with an n-port network. Chapter 3 considers the approximation problem along with a discussion of the approximating functions. Chapter 4 explains the Youla's theory of broadband matching by illustrating every phase of the theory with fully worked out examples. The extension of Youla's theory to active load impedance is taken up in Chapter 5. This book will be useful as a reference for practicing engineers who wish to learn how the modern network theory can be applied to the design of many practical circuits.


Broadband Matching

Broadband Matching
Author: Wai-Kai Chen
Publisher: World Scientific
Total Pages: 879
Release: 2015-10-13
Genre: Technology & Engineering
ISBN: 9814619078

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"The third edition presents a unified, up-to-date and detailed account of broadband matching theory and its applications to the design of broadband matching networks and amplifiers. A special feature is the addition of results that are of direct practical value. They are design curves, tables and explicit formulas for designing networks having Butterworth, Chebyshev or elliptic, Bessel or maximally flat group-delay response. These results are extremely useful as the design procedures can be reduced to simple arithmetic. Two case studies towards the end of the book are intended to demonstrate the applications to the practical design of modern filter circuits."--


Broadband Matching, Theory and Implementations

Broadband Matching, Theory and Implementations
Author: Wai-Kai Chen
Publisher: World Scientific
Total Pages: 166
Release: 1993
Genre: Technology & Engineering
ISBN: 9789810214531

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The solutions to problems in the text Broadband Matching: Theory and Implementations are presented in this book. It contains detailed solutions to most problems in the text except some proofs of identities and theorems and the verification of solutions. Many of the design problems are given in numerical details for the benefit of those who wish to perform the design themselves.


Elements of Radio Frequency Energy Harvesting and Wireless Power Transfer Systems

Elements of Radio Frequency Energy Harvesting and Wireless Power Transfer Systems
Author: Taimoor Khan
Publisher: CRC Press
Total Pages: 172
Release: 2020-11-12
Genre: Science
ISBN: 1000257843

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This book focuses on elementary concepts of both radio frequency energy harvesting (RFEH) and wireless power transfer (WPT), and highlights their fundamental requirements followed by recent advancements. It provides a systematic overview of the key components required for RFEH and WPT applications and also comprehensively introduces the pioneering research advancements achieved to date. The state-of-the-art circuit design topologies for the two different applications are presented mainly in terms of antenna operating frequencies, polarization characteristics, efficient matching network circuits, rectifier topologies, and overall rectenna systems. The book serves as a single point of reference for practicing engineers and researchers searching for potential sources and elements involved in the RFEH system as well as in the WPT system, and need rapid training and design guidelines in the following areas: • Different sensing elements used in RFEH and WPT • Inclusions of mathematical expressions and design problems • Illustration of some design examples and performance enhancement techniques


The Design of Impedance- Matching Networks for Broadband Antennas

The Design of Impedance- Matching Networks for Broadband Antennas
Author: S. T. Li
Publisher:
Total Pages: 84
Release: 1987
Genre:
ISBN:

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An interactive BASIC language computer program to aid in the design of a matching network for a broadband antenna is described. Guidelines for the design of a broadband matching network are presented. The Antenna Matching (ANTMAT) program provides a computer-aided design tool for determining network topology and component values of the networks. It improves the speed and accuracy of the broadband matching network design procedures. An optimization algorithm finds that the values of the components that minimize the input reflection coefficient. At first, the optimization algorithm with an exponential weighting function is employed for determining a list of network candidates (either a pi network for a T network) from which a network topology is selected. After a topology is specified, the optimization algorithm with other weighting function is used for finding optimum element values. Keywords include: Interactive computer program, Computer-aided design, Network topology, and Optimization algorithm.