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High Frequency and Microwave Engineering
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This book is dedicated to my wife,
Ann
for her help and encouragement in the writing of this book
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High Frequency and
Microwave Engineering
E. da Silva
The Open University
OXFORD AUCKLAND BOSTON JOHANNESBURG MELBOURNE NEW DELHI
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Butterworth–Heinemann
Linacre House, Jordan Hill, Oxford OX2 8DP
225 Wildwood Avenue, Woburn, MA 01801-2041
A division of Reed Educational and Professional Publishing Ltd
A member of the Reed Elsevier plc group
First published 2001
© E. da Silva 2001
All rights reserved. No part of this publication may be reproduced or
transmitted in any form or by any means, electronically or mechanically,
including photocopying, recording or any information storage or retrieval
system, without either prior permission in writing from the publisher or a
licence permitting restricted copying. In the United Kingdom such licences
are issued by the Copyright Licensing Agency: 90 Tottenham Court Road,
London W1P 0LP.
Whilst the advice and information in this book are believed to be true and
accurate at the date of going to press, neither the author[s] nor the publisher
can accept any legal responsibility or liability for any errors or omissions
that may be made.
British Library Cataloguing in Publication Data
A catalogue record for this book is available from the British Library
ISBN 0 7506 5646 X
Typeset in 10/12 pt Times by Cambrian Typesetters, Frimley, Surrey
Printed and bound by MPG Books Ltd, Bodmin, Cornwall
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Contents
Preface
ix
1 BASIC FEATURES OF RADIO COMMUNICATION SYSTEMS
1
1.1 Introduction
1
1.2 Radio communication systems
2
1.3 Modulation and demodulation
3
1.4 Radio wave propagation techniques
9
1.5 Antennas and Aerials
14
1.6 Antenna arrays
23
1.7 Antenna distribution systems
25
1.8 Radio receivers
32
1.9 Radio receiver properties
33
1.10 Types of receivers
37
1.11 Summary
41
2 TRANSMISSION LINES
43
2.1 Introduction
43
2.2 Transmission line basics
45
2.3 Types of electrical transmission lines
47
2.4 Line characteristic impedances and physical parameters
50
2.5 Characteristic impedance ( Z 0 ) from primary electrical parameters
54
2.6 Characteristic impedance ( Z 0 ) by measurement
58
2.7 Typical commercial cable impedances
60
2.8 Signal propagation on transmission lines
61
2.9 Waveform distortion and frequency dispersion
63
2.10 Transmission lines of finite length
64
2.11 Reflection and transmission coefficients
64
2.12 Propagation constant (
γ
) of transmission lines
72
2.13 Transmission lines as electrical components
77
2.14 Transmission line couplers
82
2.15 Summary
98
3 SMITH CHARTS AND SCATTERING PARAMETERS
88
3.1 Introduction
88
3.2 Smith charts
89
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