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Industry News

The Commercial Market

The Commercial Market First-half 1998 US Factory Electronics Sales Rise 9.6 Percent Preliminary data from the Electronic Industries Alliance indicate that, despite the uncertainty in Asian markets, US factory sales of electronics equipment, components and related products totaled more than $241.6 B for the first half of 1998, a...
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The Book End

The Book End Low Level Measurements: Precision DC Current, Voltage and Resistance Measurements Joseph F. Keithley Keithley Instruments Inc. 214 pages; no charge This book is intended as a practical guide to making precision measurements of low level DC signals. It provides a comprehensive overview of the theoretical and...
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A 1 W, 900 MHz HBT Power Amplifier

A heterojunction bipolar transistor (HBT) power amplifier specifically optimized to privide high power and efficiency while operating from a +3.6 to +6 V DC supply
A 1 W, 900 MHz HBT Power Amplifier EiC Corp.Fremont, CA Today’s cellular and portable communications equipment is expected to feature high power and efficiency while operating from a single low voltage supply. The system’s power amplifier must be able to meet these qualifications. The model ES-2067 GaAs heterojunction...
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A Phase-coherent Frequency Synthesizer for Radar Applications

A high performance, phase-coherent frequency synthesizer derived from established commercial building blocks for military radar system applications
A Phase-coherent Frequency Synthesizer for Radar Applications Programmed Test Sources Inc. (PTS) Littleton, MA The procurement policy of the defense establishment has recently undergone some significant changes. Traditionally, only equipment that met military specifications was available, often leading to very expensive solutions. Despite this restriction, maintenance requirements and reliability/longevity...
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High Isolation Switches with Integral Drivers

This month's cover features a low cost, GaAs, high isolation SPDT switch with an integrated driver that reduces the leakage of unwanted signals
High Isolation Switches with Integral Drivers Mini-Circuits Brooklyn, NY Solid-state switches are used extensively for routing or selecting RF and microwave signals. If the isolation between the selected and unselected ports is not high, leakage of unwanted signals could degrade the carrier-to-interference ratio. Several switches may have to be...
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60 and 120 W, 2 GHz LDMOS FETs

Two new laterally diffused metal-oxide semiconductor (LDMOS) FETs developed for code-division/time-division multiple access applications from 1.8 to 2 GHz
60 and 120 W, 2 GHz LDMOS FETs Ericsson Components, RF Power Products Morgan Hill, CA The dramatic increase in cellular traffic has necessitated the use of spread spectrum techniques such as time-division multiple access (TDMA) and code-division multiple access (CDMA). These modulation methods have significantly tightened the linearity...
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A High Performance, Economical RF/Microwave Substrate

A polytetraflouroethylene-based RF/microwave substrate for high frequency applications
A High Performance, Economical RF/Microwave Substrate Taconic, Advanced Dielectric Division Petersburgh, NY During the past decade, the wireless industry has evolved from a predominantly military-driven market to a cost-conscious, consumer-driven commercial market. At the same time, wireless applications are moving up in the frequency spectrum. For example, personal communications...
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High Reliability Coaxial Microwave Switches

The new Radiall Modular System for Electromechanical Switches (RAMSES)
High Reliability Coaxial Microwave Switches Radiall Inc. Paris, France and Stratford, CT, USA An innovative new system has been designed for constructing electromechanical coaxial RF switches with increased long-term reliability. The Radiall Modular System for Electromechanical Switches (RAMSES) is a patented concept that enables microwave coaxial switches to be...
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A Digital Quadrature IF Mixer

A digital quadrature IF mixer that provides a compact and efficient implementation for the front-end converter in microwave signal processing
A Digital Quadrature IF Mixer Anaren Microwave Inc. East Syracuse, NY A digital quadrature IF mixer (DQIFM) combines two proven technologies to produce a single RF-to-digital solution for front-end conversion in microwave signal processing applications. The device incorporates broadband RF stripline technology with high speed digital conversion, providing an...
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Trends in Mobile Telephony Services Tariffing

Expected changes in mobile telephony service tariff structures, including the disappearance of differences in tariffs between countries and among competing operators
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...
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