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`ParkerVision Ex. 2039
`IPR2021-00990
`Page 1 of 3
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`ParkerVision Ex. 2039
`IPR2021-00990
`Page 1 of 3
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`Library of Congress Cataloging-in-Publication Data
`
`McClaning, Kevin, 1959-
`Radio receiver design / Kevin McCianing, Tom Vito.
`p.cm.
`Includes bibliographical references and index.
`ISBN i-884932-07-X
`1. Radio-Receivers and reception-Design and construction. I. Vit.o, Tom, 1953-11.
`Title.
`
`TK6563 .M38 2000
`621.384'18--dc21
`
`00-061271
`
`~ NOBLE
`
`PUBLISHING
`
`Copyright 2000 by Noble Publishing Corporation.
`
`All rights reserved. No part of this book may be reproduced in any form or by any
`means without prior written permission of the publisher.
`
`Printed in the Unites States of America
`
`ISBN 1-884932-07-X
`
`ParkerVision Ex. 2039
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`72 I RADIO RECEIVER DESIGN
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`Yu = Yu_mZo Y12 = Y~ Y21 = Y21_mZo Y22 = Y22,1.oZo
`
`1.146
`
`1.147
`
`1.148
`
`1.13 Matching and Maximum Power Transfer
`
`We can model any practical signal source as Figure 1-35 indicates. The
`combination of Vs and Rs can be a signal generat.ed, an antenna, or a RF
`amplifier. The value of R8 can be small, but it will never be zero. For a various
`reasops, Rs is set equal to Zo, the system's characteristic impedance.
`Let us assume the source in Figure 1-35 is an antenna. Then Vs repre(cid:173)
`sents the signal energy the antenna receives and Rs represents the radiation
`resistance of the antenna. If the load resistor represents a receiving system,
`the receiver should be able to take the maximum amount · of signal power
`from the antenna into the load resistor RL.
`
`: ................................. ·
`
`o Signal Generator
`o Antenna
`o RF Amplifier
`
`Figure 1•36 Model used to derive maximum power transfer conditions.
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`ParkerVision Ex. 2039
`IPR2021-00990
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