RF & Microwave Industry News

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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...

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...

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...

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...

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...

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  ...

Technical Feature Measuring ACPR in CDMA Amplifiers Mark Slovick Please click here to view the pdf file of the Technical Feature  ...

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...

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....

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...