Microwave Engineering Europe June 2000 Cover story Our cover shows the new option for buying use of design software on a per-use basis. The launch offering from Barcelona Design, for spiral inductors, is described on page 11. The benefits of change It's been a month of change. In the May issue of Microwave Engineering Europe we let you know about the integration of the magazine and the various complementary products such as workshops, mwee.com and European Microwave Week into CMP Electronics. This month we have started to bring some of the benefits of the CMP network to readers by integrating mwee.com into CMP's Electronics Design Technology Network, EDTN, as a Network Partner. In the first instance, this will give the visitors to EDTN an opportunity to visit mwee.com through that portal, and with 5 million page views per month that's plenty of opportunity. Later this month the capability will go further with a dedicated feed of news on the microwave, RF and wireless industry from our CMP sister titles like EE Times and Electronics Business News direct to mwee.com, ensuring that you can read daily updates on the news that's most important to our industry, from the most comprehensive news organisation in the technology sector. We will also be working hard over the next month to update our annual directory of manufacturers and distributors for publication in July. Companies can visit our web site to provide us with their contact details this month for the printed version and if at anytime those details change, the route to update the information will be just the same. And the online version will indeed be updated just as often as companies bring us their new information. It's been something of a web month! The first in what we hope will be a series of online seminars proved to be a tremendous success, with close to 400 delegates registered and up to 8 engineers crowding around the terminal in some locations to share the learning experience. If phase noise is your business and you missed the live broadcast, which was put together by Agilent, an archive of the seminar is available through our web site www.mwee.com. It includes the one hour presentation and a transcribe of the 45 minute question and answer session. Where else but the web could you open up such a great Q&A session after a seminar? Take a look under May 24th for the archived presentation. On a final web note, we feature in this issue the pay-per-use design-online service for RF components from Barcelona Design. Take a look on page 11 for the details. Is this a design model which works for you? Using the web browser as a dumb terminal that links to a sophisticated circuit synthesis and optimization capability is certainly an interesting approach. What is really significant is that the design process must be simple enough for a dial up, learn and discard method of working. The company has the backing of a couple of well known Stanford professors and former Cadence Chief Exec. Joe Costello. The system is on free demo at the moment. If you do take a look, we'd like to know what you think. Paul Jackson

Contents In focus Design online is pay as you go; European Microwave Week 2000; MEE Online Event. Focus on Antennas Antennas arrayed at combined conference; Space mission for Spanish antenna; Sectors slim down for MMDS. Multi-frequency, multi-polarization N-Port printed planar antennas With the increasing development of wireless communications, compact, multi-frequency and multi-polarization planar antennas become highly desirable. The example here is described by J-F. Zırcher, J. R. Mosig, A. K. Skrivervik, Q. Xu and S. Vaccaro. The design and implementation of a wideband multi-rate radio using software radio techniques This paper focuses on the practical aspects of software radio techniques. The 1.4GHz microwave radio described implements multi-rate signal processing algorithms to provide variable channel bandwidths, symbol rates, modulation schemes, and wide frequency tuning. The authors are L. S. Musa, M. R. Reynolds and P. J. Bearpark of Scientific Generics Ltd. Low noise amplifiers in SiGe bipolar technology Low-noise amplifiers are key building blocks for monolithically integrated receivers above >2GHz. This paper describes the LNAs developed at Infineon in SiGe technology. The authors are Dietmar Zıschg, Wilhelm Wilhelm, Thomas F. Meister, Herbert Knapp, Martin Wurzer, Klaus Aufinger, Josef Bıck , Hans-Dieter Wohlmuth and Arpad L. Scholtz. Design and development of a low noise amplifier using measured models of transistors In this paper, the first in a series by PhD students, a 9.9-10.1GHz low noise amplifier is presented. MEE is encouraging publications from postgraduates and will be offering an award for the top student paper published each year. The lead author is Petros S. Tsenes, the Coauthor is Dr. Giorgos E. Stratakos. Sommaire d'articles Zusammenfassung der Artikel New Products and Data Calendar Classified Catalogue Update & Appointments