Industry News

RSS

International Report Lüneburg Chooses R & S Law Enforcement TETRA Solution The regional administration of Lüneburg, Lower Saxony has awarded Rohde & Schwarz (R & S) subsidiary R & S Bick Mobilfunk GmbH a contract covering the supply of a terrestrial trunked radio (TETRA) standard ACCESSNET® - T mobile...

The Commercial Market Fiber Optics to be Bright Spot in Future of Network Cabling With a compound annual growth rate (CAGR) of 23 percent through 2005, fiber-optic cabling is a technology with a bright future, according to a report, "Copper, Fiber & Wireless: How Will We Hook Up?," from...

The Book End Transmission Lines and Wave Propagation P.C. Magnusson, G.C. Alexander, V.K. Tripathi and A. Weisshaar CRC Press LLC 519 pages; $89.95, £59.99 ISBN: 0-8493-0269-2 This is the fourth edition of this book. To electrical engineers, a transmission line is a distributed parameter physical system, one in which...

Product Feature A Hardware Multichannel Simulator for Wideband Wireless Systems Elektrobit Kauniainen, Finland Hardware-based multipath fading simulators have traditionally been used to generate up to two simultaneous fading channels. Mobile network testing and future wireless applications like geolocation, smart antennas and multiple input multiple output (MIMO) systems, however, require...

Product Feature Stainless Steel Coaxial Cable with Medium Loss at 36 GHz Fig. 1 Loss per 100 ft. vs. frequency. Anyone who has tried to use copper cable for high frequency connections in high stress environments knows that it does not hold up very well for long. Attempts to...

Technical Feature A Broadband, Four-bit, Ka-band MMIC Phase Shifter A compact, robust and broadband, four-bit, Ka-band phase shifter was designed and fabricated in a standard 0.25 m m PHEMT GaAs process. Design trade-offs, simulation versus measured results and architectures for the various bits to achieve broadband performance are discussed....

Technical Feature A High Efficiency, Low Cost Silicon Bipolar GSM Dual-band PA Module T. Johansson, P. Lundin, J. Engvall and D. Uggla Ericsson Microelectronics AB Kista, Sweden U. Hagström Ericsson Microwave Systems AB Mölndal, Sweden As the wireless communication business continues to expand, there is great demand for reducing...

Editorial Index ANTENNAS Clarke, Roger "A High Efficiency Bow-tie Antenna for Impulse Propagation," No. 8, p. 94. González, V., J.M. Rodríguez, J.E. González, C. Rueda and C. Martín Pascual "Design Methodology for High Efficiency Active Radiators," No. 9, p. 168. McCarrick, Charles D. "A Combination Monopole/Quadrifilar Helix Antenna for...

The Book End Nano- and Microelectromechanical Systems Sergey E. Lyshevski CRC Press 338 pages; $89.95, £34.99 ISBN: 0-8493-916-6 This book is designed for a one-semester course on nanoelectromechanical and microelectromechanical systems (NEMS and MEMS). It builds the theoretical foundation needed to develop, analyze and prototype NEMS and MEMS, their...

Product Feature Phase Invariant Attenuators G.T. Microwave Inc. Randolph, NJ The function of a phase invariant attenuator is to change the amplitude in the processing of a microwave signal with minimal impact to the phase characteristic. The theory of operation is that when a signal reaches its maximum attenuation,...