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SOFTWARE Filter Design Programs The PCFILT and S/FILSYN filter design programs have been upgraded to operate under the 32-bit Windows '95/'98/NT operating systems. PCFILT has been fully converted to a true Windows program, allowing it to take advantage of the features of these new operating systems. While still DOS...

News From Washington Iridium Network to Serve Defense Personnel The Defense Information Systems Agency (DISA) has installed a dedicated ground station at the Naval Computer and Telecommunications Area Master Station-Pacific, Honolulu, HI, to act as a terrestrial gateway for Department of Defense (DoD) users of the global Iridium cellular...

International Report Netherlands Moves Frigate Programme Forward With Radar Contract Following its selection of Racal's Sabre electronic support/countermeasures system (see page 45 in the January issue of Microwave Journal), the royal Netherlands navy's de Zeven Provincien class frigate programme has progressed further with the receipt of a new radar...

Commercial Market 1998 US Digital Handset Sales Surpass Analog According to a recent report released by Dataquest, a unit of GartnerGroup Inc., US digital handset sales reached 10.1 million units through the first three quarters of 1998 compared to the sale of 7.9 million analog handsets during the same...

The Book End Digital Communications: Design for the Real World Andy Bateman Addison-Wesley Publishing Co. 221 pages plus CD ROM; $59.95, £24.95 Much of today's electronic communications utilizes some form of digital modulation. Communications equipment design engineers now must be thoroughly familiar with these techniques and their effects on...

Improved Composite Metal for High Performance Semiconductor Applications Polese Co. San Diego, CA As performance demands on silicon and GaAs devices continue to increase, so do thermal management concerns and the need for cost-effective packaging alternatives. In addition to heat dissipation, concerns such as material compatibility must be considered...

Chip Directional Couplers for Wireless Applications Toko America Inc. Mt. Prospect, IL Numerous circuit locations exist in today's portable wireless telephones and equipment that require an RF sample voltage to be redirected to another part of the circuit. In the past, directional couplers were considered one of the more...

An RF Power Amplifier for Whole-body MRI Scanner Applications Communication Power Corp. Brentwood, NY Approximately 20 years have passed since the introduction of magnetic resonance imaging (MRI) scanners. In that time, this once-ridiculed technology has become a mainstream medical imaging modality. Coupled with MRI's anatomical imaging capability is nuclear...

Broadband High Frequency SMT Packages Kyocera America Inc. San Diego, CA For many years, the electronics industry has been using surface-mount technology (SMT) components because of their ease of integration, low cost and standardization. One drawback has been the lack of a single broadband, low parasitic package to fit...

Precision Attenuators for Wireless Production Applications Trilithic Inc. Indianapolis, IN With "faster, cheaper" as their mantra, wireless telephone manufacturers are leaving no area of production untouched as they search for ways to improve throughput. Not surprisingly, production is an area frequently scrutinized since even modest reductions in test time...