Microwave Engineering Europe - March 2008 - (Page 7)

CONTENTS 7 3 9 11 COVER News Comment Wireless Infrastructure: A direct conversion I/Q demodulator drives favorable basestation cost-performance metrics Direct conversion receiver ICs have only recently met the level of performance required for basestations. The drive to reduce cost of the next generation basestations, particularly acute for micro-cell and pico-cells, compel attention to the direct conversion architecture which offers signiﬁcant cost savings. Wireless Infrastructure: Mobile world set to reshape the internet The recent Mobile World Congress which took place from February 11th to 14th, saw three deﬁnitive trends: global positioning, full web browsing including YouTube videos and high deﬁnition video encoding/decoding capabilities on a cell phone. RF Ampliﬁers: Latest advances in RF ampliﬁers include a CMOS PA operating at 77 GHz and signiﬁcant advances in PAs for WiMAX and broadband applications Many applications still require unique performance beneﬁts of BeO Beryllium oxide (BeO) is a familiar material to designers of microwave products, since it has long been employed as an insulating material in high-power RF power transistors, in terminations, and other high-power components. ACE Automated Circuit Extraction returns to real design by exploring design alternatives and changes in seconds The traditional approach to microwave and RF circuit design — the present day foundation for high-frequency wireless designs — is being pressured simultaneously by an increase in operating frequencies/bandwidth and a decrease in overall circuit size/dimensions. Exceeding the standard for wireless sensor networks ZigBee is just one answer for many practical wireless network applications. Other solutions could be easier-to-implement, more compact and use less power. Products Calendar The cover depicts an artistic rendition of the growth and development of the advanced and pervasive wireless infrastructure that we take for granted today and have come to rely on in the age of wireless communications. EDITORIAL DIRECTOR JEAN-PIERRE JOOSTING Tel. +32 2 7400056 email: jean-pierre.joosting@eetimes.be CONTRIBUTING EDITORS COLIN HOLLAND email: colin.holland@btinternet.com JOHN WALKO email: jwalko@cmp.com EDITORIAL ADVISORY BOARD Tom Brazil, University College Dublin, Ireland Marco Lisi, Telespazio, Italy Holger Meinel, DaimlerChrysler Aerospace AG, Germany Marco Guglielmi, ESTEC, The Netherlands Chris Snowden, Filtronic Compound Semiconductor/ University of Leeds, UK. 16 18 ADVERTISING PRODUCTION LYDIA GIJSEGOM - MAGGIE FLEERACKERS Tel +32 (0) 2 740 00 50 email: lydia.gijsegom@eetimes.be CIRCULATION & FINANCE LUC DESIMPEL Tel +32 (0) 2 740 0055 email: luc.desimpel@eetimes.be ART MANAGER JEAN-PAUL SPELIERS Tel +32 (0)2 740 0052 email: jean-paul.speliers@eetimes.be ACCOUNTING RICARDO PINTO FERREIRA Tel +32 (0)2 740 0051 email: sonia.stouti@eetimes.be VP SALES PATRICK FLYNN Tel +44 (0)1732 377186 email: pﬂynn@cmp.com PUBLISHER ANDRE ROUSSELOT Tel +32 (0)2 740 0053 email: aroussel@cmp.com EUROPEAN BUSINESS PRESS A CMP COMPANY 144 Avenue Eugène Plasky 1030 Brussels - Belgium Tel: +32 (0)2 740 00 50 Fax: +32 (0)2 740 00 59 www.mwee.com VAT Registration: BE 461.357.437 RPM: Brussels Company Number: 0461357437 © 2008 E.B.P. SA, a CMP Company All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording or any information storage or retrieval system without the express prior written consent of the publisher. The contents of Microwave Engineering Europe are subject to reproduction in information storage and retrieval systems. Microwave Engineering Europe is published ten times a year. Apply for a free copy of the journal online at www.mwee. com/subscribe/ Subscriptions: Microwave Engineering Europe is available on subscription to others at 150 Euro. Refunds on cancelled subscriptions will only be provided at the Publisher’s discretion, unless speciﬁcally guaranteed within the terms of the subscription offer. Paid subscription queries tel: +32 2 740 00 50 Printed by Perka. 20 24 31 • • • • • 35 42 Microwave Engineering Europe ● March 2008 ● www.mwee.com 007_MWEE.indd 7 22/02/08 16:57:14 http://www.mwee.com http://www.mwee.com

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Microwave Engineering Europe - March 2008 News Contents Comment Wireless Infrastructure: A Direct Conversion I/Q Demodulatordrives Favorable Basestation Cost-performance Metrics Wireless Infrastructure: Mobile World Set to Reshape the Internet RF Amplifiers: Latest Advances in RF Amplifiers Include a CMOS PA Operating at 77 GHz and Significant Advances in PAs for WiMAX and Broadband Applications Many Applications Still Require Unique Performance Benefits of BeO ACE Automated Circuit Extraction Returns to Real Design by Exploring Design Alternatives and Changes in Seconds Exceeding the Standard for Wireless Sensor Networks Products Calendar

Microwave Engineering Europe - March 2008

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