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Industry News

SiGe Front-end RFICs

Silicon germanium (SiGe) ICs that eliminate the need for multiple components in 900, 1800 and 1900 MHz front-end applications
SiGe Front-end RFICs CommQuest, an IBM company Encinitas, CA The advantages of the silicon germanium (SiGe) semiconductor process have provided a price-to-performance ratio not available thus far from existing component technologies. SiGe power amplifiers achieve better than 55 percent power-added efficiency while today’s GaAs-based products offer no more than...
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A Bonding Prepreg for Microwave Multilayer PCBs That Uses FR-4 Processing

This month's cover features a bonding prepreg for microwave multilayer PCBs that uses FR-4 fabrication processes
A Bonding Prepreg for Microwave Multilayer PCBs That Uses FR-4 Processing Rogers Corp., Microwave Materials Division Chandler, AZ As the high performance microwave market has evolved from a low volume, military-oriented market to one dominated by large, commercial wireless applications, microwave circuit boards have also undergone a fairly dramatic...
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An IS-95 16-channel CDMA Source for Power Amplifier Testing

A CDMA source that generates real-time stimuli for testing power amplifier performance for use in cellular and PCS applications
An IS-95 16-channel CDMA Source for Power Amplifier Testing Berkeley Varitronics Systems Inc. Metuchen, NJ Communications systems that use CDMA techniques are placing new demands on component manufacturers, test equipment and measuring techniques. Digital TDMA and CDMA standards use quadrature phase-shift keying (QPSK) modulation formats as opposed to the...
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A Low Loss, Lead-free LTCC System for Wireless and RF Applications

A low temperature cofired ceramic (LTCC) system that exhibits low loss up to 23 GHz and has many of the desirable features of 951 Green Tape
A Low Loss, Lead-free LTCC System for Wireless and RF Applications DuPont Microcircuit Materials, The DuPont Co. Wilmington, DE As the number and complexity of wireless applications grow, needs increase for component and interconnect technologies that allow the direct attachment of bare ICs, can be manufactured in high volumes...
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1998 Editorial Index

A listing of 1998 Microwave Journal articles organized by subject and indexed alphabetically by author
1998 Editorial Index COVERS Alpha Industries "Low Voltage Power Amplifiers for GSM Handsets," No. 6, p. 116. Analog Devices "A 0.1 to 2.5 GHz Logarithmic Amplifier for RF Detection," No. 7, p. 142. Anritsu Co. "Spectrum Analyzers for High Frequency Point-to-point and Point-to-multipoint Networks," No. 3, p. 132. Hewlett-Packard...
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Linear RF Power Amplifier Design for CDMA Signals: A Spectrum Analysis Approach

A theoretical method to predict the output power spectrum of a CDMA power amplifier
Technical Feature Linear RF Power Amplifier Design for CDMA Signals: A Spectrum Analysis Approach Qiang Wu, Heng Xiao and Fu Li Please click here to view the pdf file of the Technical Feature  ...
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Measuring ACPR in CDMA Amplifiers

Two spectrum analyzer methods for measuring adjacent-channel power ratio (ACPR) in CDMA amplifiers
Technical Feature Measuring ACPR in CDMA Amplifiers Mark Slovick Please click here to view the pdf file of the Technical Feature  ...
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Phase and Amplitude Noise Due to Analog Control Components

Analysis necessary to calculate system phase and amplitude noise contribution due to the noise spectrum on a bias supply or control voltage of a microwave amplifier or analog control component in combination with the component phase and amplitude sensi...
Technical Feature Phase and Amplitude Noise Due to Analog Control Components Craig Moore and Bruce Kopp Please click here to view to pdf file of the Technical Feature...
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Around the Circuit

Around the Circuit INDUSTRY NEWS Alcatel has entered into an agreement to acquire wire-speed routing and Gigabit Ethernet solution developer Packet Engines Inc. in a cash transaction valued at $315 M. Following the acquisition, Packet Engines will retain its name and continue to operate from its Spokane, WA facility....
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New Literature

New Literature RF Coaxial Connector Catalog This 60-page catalog describes a variety of RF coaxial connectors, including SMA, SMB, SSMB, SMC, MCX, MMCX, TNC, UHF, N, F, BNC and twinax. Outline drawings and product photographs are provided. Aliner Connectors Inc., City of Industry, CA (626) 964-5608. Aerospace and Defense...
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