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Trends in Mobile Telephony Services Tariffing Stefan Zehle Prodata Partners Ltd., London, UK Mobile telephony services tariffs and tariff structures are likely to change substantially over the next few years. The differences in mobile tariffs between countries are likely to disappear and tariffs offered by competing operators are likely...

The Wireless Decade: A European Survey Lucy Berridge, Stephen Stones, Peter Kingsland, Tania Harvey and Ross Parsons CIT Publications, Exeter, UK There is no doubt that European mobile communications markets are booming as never before. As ever, strong regional and national differences exist within this cross-European trend. Last year,...

The Role of Microwave Technologies in the Wireless Revolution Manuel del Castillo and Henry Valenzuela Andrew Corp., Orland Park, IL There is no doubt that we are in the middle of a wireless revolution that has been initiated by current digital mobile standards. This wireless boom has accelerated the...

mm-wave Microelectronics Manufacturing Kevin Danehy and Mark Wolf M/A-COM, a division of AMP Inc. Lowell, MA The question as to whether or not the telecommunications industry will fully utilize the promise of mm-wave technology is still highly debated. However, the development and interest in commercial mm-wave products have skyrocketed....

Free-space vs. One-horn Interferometer Techniques for Radar Absorber Measurements The reflection coefficient measurements of radar-absorbing materials (RAM) in free space (FS) and using the one-horn interferometer (OHI) technique are compared for different test samples. It is observed that the problems in the measurement of reflection coefficients using the OHI...

MESFET and HEMT Design Using Fast Physical Device Simulation This article demonstrates how fast physical device simulation can be used in conjunction with measured data to gain insight into device operation and help troubleshoot device designs. The need for device simulation, which is fast enough to provide a reasonable...

Around the Circuit INDUSTRY NEWS UK-based Bowthorpe plc has announced that its specialist power supply subsidiary, Switching Systems International (SSI) , Anaheim, CA, has acquired the business and certain assets of Orange, CA- based Conversion Equipment Corp. (CEC) . By obtaining CEC’s custom power supplies for equipment manufacturers, SSI...

New Literature Nylon Resin Brochure This eight-page brochure describes the company’s Capron® XFI™ series nylon resins for large-part (automotive panels, tractor decks and hoods, and lawn tools) and thin-wall (cellular telephones, battery housings, pagers and hand-held electronics) applications. Product photographs are included. AlliedSignal Plastics, Morristown, NJ (888) 565-9835. Product...

Web Update RF and Microwave Products This enhanced Web site details a broad range of categories, including new product data sheets, application notes, employment opportunities and product overviews. The site represents the company’s ongoing efforts to keep customers informed regarding the company’s continually improving production processes to meet market...

COMPONENTS Thin-film Directional Couplers The CP0805 series thin-film directional couplers feature typical coupling performance of 16 dB over a wide frequency range. The units are available in two basic configurations with five different coupling types that feature characteristic impedance of 50 W, maximum insertion loss of 0.25 dB and...