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Microwave Bandpass Filters for Wideband Communications.pdf

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MICROWAVE BANDPASS FILTERS FOR WIDEBAND COMMUNICATIONS
CONTENTS
PREFACE
CHAPTER 1: INTRODUCTION
1.1 BACKGROUND ON UWB TECHNOLOGY
1.2 UWB REGULATIONS
1.2.1 FCC Radiation Masks
1.2.2 ECC Radiation Masks
1.2.3 UWB Definition and Bandwidth
1.3 UWB BANDPASS FILTERS
1.4 ORGANIZATION OF THE BOOK
REFERENCES
CHAPTER 2: TRANSMISSION LINE CONCEPTS AND NETWORKS
2.1 INTRODUCTION
2.2 TRANSMISSION LINE THEORY
2.2.1 Basic Transmission Line Model
2.2.2 Lossless Terminated Transmission Lines
2.3 MICROWAVE NETWORK PARAMETERS
2.3.1 Scattering Parameters for Two-Port Network
2.3.2 [Z] and [Y] Matrices
2.3.3 ABCD Parameters
2.3.4 Conversions between S-, Z-, Y-, and ABCD-Matrix Parameters
2.4 RELATIVE THEORIES OF NETWORK ANALYSIS
2.4.1 Even- and Odd-Mode Network Analysis
2.4.2 Image Parameter Method
2.5 SUMMARY
REFERENCES
CHAPTER 3: CONVENTIONAL PARALLEL-COUPLED LINE FILTER
3.1 INTRODUCTION
3.2 LUMPED-ELEMENT LOWPASS FILTER PROTOTYPE
3.2.1 Maximally Flat and Chebyshev Characteristics
3.2.2 Lumped-Element Ladder Network
3.3 IMPEDANCE AND FREQUENCY TRANSFORMATION
3.3.1 Lowpass to Lowpass Transformation
3.3.2 Lowpass to Highpass Transformation
3.3.3 Lowpass to Bandpass Transformation
3.3.4 Lowpass to Bandstop Transformation
3.4 IMMITTANCE INVERTERS
3.5 LOWPASS PROTOTYPE FILTER WITH IMMITTANCE INVERTER
3.6 PARALLEL-COUPLED LINE BANDPASS FILTER
3.7 SUMMARY
REFERENCES
CHAPTER 4: PLANAR TRANSMISSION LINE RESONATORS
4.1 INTRODUCTION
4.2 UNIFORM IMPEDANCE RESONATOR
4.2.1 Short-Circuited λg/2 Transmission Line
4.2.2 Open-Circuited λg/2 Transmission Line
4.2.3 Short-Circuited λg/4 Transmission Line
4.2.4 Open-Circuited λg/4 Transmission Line
4.3 STEPPED IMPEDANCE RESONATORS
4.3.1 Fundamental Properties of SIR
4.3.2 Slope Parameters of SIR
4.3.3 Design of the Parallel-Coupled Line Bandpass Filters with SIR
4.4 MULTIPLE-MODE RESONATOR
4.4.1 Open-Circuited Multiple-Mode Resonator
4.4.2 Short-Circuited Multiple-Mode Resonator
4.4.3 Design of the Parallel-Coupled Line Bandpass Filters with MMRs
4.5 SUMMARY
REFERENCES
CHAPTER 5: MMR-BASED UWB BANDPASS FILTERS
5.1 INTRODUCTION
5.2 AN INITIAL MMR-BASED UWB BANDPASS FILTER
5.3 UWB BANDPASS FILTERS WITH VARIED GEOMETRIES
5.3.1 Aperture-Backed PCML
5.3.2 Broadside Microstrip/CPW
5.3.3 Inductive Coupling Element on CPW
5.4 UWB FILTERS WITH IMPROVED OUT-OF-BAND PERFORMANCE
5.4.1 Capacitive-Ended Interdigital Coupled Lines
5.4.2 Coupling between Two Feed Lines
5.4.3 Stub-Loaded MMR
5.4.4 Lowpass Embedded MMR
5.5 UWB BANDPASS FILTER WITH A NOTCH BAND
5.6 SUMMARY
REFERENCES
CHAPTER 6: SYNTHESIS APPROACH FOR UWB FILTERS
6.1 INTRODUCTION
6.2 TRANSFER FUNCTION
6.3 TRANSMISSION LINE NETWORK WITH PURE SHUNT/SERIES STUBS
6.4 TRANSMISSION LINE NETWORK WITH HYBRID SERIES AND SHUNT STUBS
6.5 MMR-BASED UWB FILTER WITH PARALLEL-COUPLED LINES
6.6 SUMMARY
REFERENCES
CHAPTER 7: OTHER TYPES OF UWB FILTERS
7.1 INTRODUCTION
7.2 UWB FILTERS WITH HIGHPASS AND LOWPASS FILTERS
7.3 UWB FILTERS WITH OPTIMUM SHUNT SHORT-CIRCUITED STUBS
7.3.1 UWB Filter with Extended Upper Stopband
7.3.2 UWB Filter with Enhanced Selectivity
7.4 UWB FILTERS WITH QUASI-LUMPED ELEMENTS
7.4.1 UWB Filter Implemented with Suspended Strip Line
7.4.2 UWB Filter Implemented on Liquid Crystal Polymer (LCP)
7.5 UWB FILTERS WITH COMPOSITE CPW AND MICROSTRIP STRUCTURE
7.6 UWB FILTER WITH MICROSTRIP RING RESONATOR
7.7 UWB FILTER USING MULTILAYER STRUCTURES
7.8 UWB FILTER WITH SUBSTRATE INTEGRATED WAVEGUIDE (SIW)
7.9 UWB FILTER WITH NOTCH BAND
7.10 SUMMARY
REFERENCES
INDEX
MICROWAVE BANDPASS FILTERS FOR WIDEBAND COMMUNICATIONS
WILEY SERIES IN MICROWAVE AND OPTICAL ENGINEERING KAI CHANG, Editor Texas A&M University A complete list of the titles in this series appears at the end of this volume.
MICROWAVE BANDPASS FILTERS FOR WIDEBAND COMMUNICATIONS LEI ZHU Nanyang Technological University, Singapore SHENG SUN The University of Hong Kong, Hong Kong RUI LI Institute of Microelectronics, Singapore A JOHN WILEY & SONS, INC., PUBLICATION
Copyright © 2012 by John Wiley & Sons, Inc. All rights reserved Published by John Wiley & Sons, Inc., Hoboken, New Jersey Published simultaneously in Canada No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, scanning, or otherwise, except as permitted under Section 107 or 108 of the 1976 United States Copyright Act, without either the prior written permission of the Publisher, or authorization through payment of the appropriate per-copy fee to the Copyright Clearance Center, Inc., 222 Rosewood Drive, Danvers, MA 01923, (978) 750-8400, fax (978) 750-4470, or on the web at www.copyright.com. Requests to the Publisher for permission should be addressed to the Permissions Department, John Wiley & Sons, Inc., 111 River Street, Hoboken, NJ 07030, (201) 748-6011, fax (201) 748-6008, or online at http://www.wiley.com/go/permissions. Limit of Liability/Disclaimer of Warranty: While the publisher and author have used their best efforts in preparing this book, they make no representations or warranties with respect to the accuracy or completeness of the contents of this book and specifically disclaim any implied warranties of merchantability or fitness for a particular purpose. No warranty may be created or extended by sales representatives or written sales materials. The advice and strategies contained herein may not be suitable for your situation. You should consult with a professional where appropriate. Neither the publisher nor author shall be liable for any loss of profit or any other commercial damages, including but not limited to special, incidental, consequential, or other damages. For general information on our other products and services or for technical support, please contact our Customer Care Department within the United States at (800) 762-2974, outside the United States at (317) 572-3993 or fax (317) 572-4002. Wiley also publishes its books in a variety of electronic formats. Some content that appears in print may not be available in electronic formats. For more information about Wiley products, visit our web site at www.wiley.com. p. cm. Library of Congress Cataloging-in-Publication Data: Zhu, Lei, 1963- Microwave bandpass filters for wideband communications / Lei Zhu, Sheng Sun, Rui Li. Includes bibliographical references. ISBN 978-0-470-87661-9 (hardback). 1. Broadband communication systems. 2. Ultra-wideband devices. I. Sun, Sheng, 1980- II. Li, Rui, 1981- III. Title. TK5103.4.Z48 2011 621.381'3224–dc23 2011034132 Printed in the United States of America 10 9 8 7 6 5 4 3 2 1
CONTENTS PREFACE 1 INTRODUCTION ix 1 1.1  Background on UWB Technology  /  2 1.2  UWB Regulations  /  3 1.2.1  FCC Radiation Masks  /  3 1.2.2  ECC Radiation Masks  /  4 1.2.3  UWB Definition and Bandwidth  /  7 1.3  UWB Bandpass Filters  /  8 1.4  Organization of the Book  /  11 References  /  13 2 TRANSMISSION LINE CONCEPTS AND NETWORKS 18 2.1  Introduction  /  18 2.2  Transmission Line Theory  /  19 2.2.1  Basic Transmission Line Model  /  19 2.2.2  Lossless Terminated Transmission Lines  /  21 2.3  Microwave Network Parameters  /  26 2.3.1  Scattering Parameters for Two-Port   Network  /  26 [Z] and [Y] Matrices  /  30 2.3.2  v
vi    CONTENTS 2.3.3  ABCD Parameters  /  33 2.3.4  Conversions between S-, Z-, Y-, and ABCD-Matrix  Parameters  /  38 2.4  Relative Theories of Network Analysis  /  42 2.4.1  Even- and Odd-Mode Network Analysis  /  42 2.4.2  Image Parameter Method  /  47 2.5  Summary  /  52 References  /  52 3 CONVENTIONAL PARALLEL-COUPLED LINE FILTER 53 3.1  Introduction  /  53 3.2  Lumped-Element Lowpass Filter Prototype  /  54 3.2.1  Maximally Flat and Chebyshev Characteristics  /  54 3.2.2  Lumped-Element Ladder Network  /  56 3.3  Impedance and Frequency Transformation  /  65 3.3.1  Lowpass to Lowpass Transformation  /  66 3.3.2  Lowpass to Highpass Transformation  /  66 3.3.3  Lowpass to Bandpass Transformation  /  67 3.3.4  Lowpass to Bandstop Transformation  /  68 3.4  Immittance Inverters  /  70 3.5  Lowpass Prototype Filter with Immittance Inverter  /  71 3.6  Parallel-Coupled Line Bandpass Filter  /  76 3.7  Summary  /  84 References  /  84 4 PLANAR TRANSMISSION LINE RESONATORS 85 4.1  Introduction  /  85 4.2  Uniform Impedance Resonator  /  87 4.2.1  Short-Circuited λg/2 Transmission Line  /  87 4.2.2  Open-Circuited λg/2 Transmission Line  /  89 4.2.3  Short-Circuited λg/4 Transmission Line  /  91 4.2.4  Open-Circuited λg/4 Transmission Line  /  93 4.3  Stepped Impedance Resonators  /  94 4.3.1  Fundamental Properties of SIR  /  95 4.3.2  Slope Parameters of SIR  /  101
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