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The Book End

July 5, 2007
Microwave Journal Staff
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Design and Characterization of Integrated Varactors for RF Applications I Gutierrez, J. Melendez and E. Hernandez John Wiley & Sons Ltd. • 179 pages; $110 ISBN: 978-0-470-02587-1 This book introduces the reader to varactor design for RF applications in low cost technologies (CMOS, BiCMOS and SiGe) at different levels....
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Current Switch-off Solution to Protect RF Power Transistors During Measurements

A new security switch called “e-fuse” is presented here. It acts as a fuse in the bias feed, providing very fast switch-off times, thus protecting the device under test and the measurement equipment such as probe tips. It can be applied to FET-type ...
July 5, 2007
M. Ibrahim Khalil, Armin Liero, Andreas von Müller and Thomas Hoffmann
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Microwave power transistors today can achieve output power levels greater than 100 W and there is more to come. In most cases, these transistors are also high voltage devices based on Si-LDMOS or GaN. In order to characterize such transistors during development, on-wafer measurements (of sub-cells) are an indispensable...
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Low Cost Signal Sources for Multi-band, Multi-mode Wireless Communication Systems

This article focuses on providing a cost-effective solution for multi-band, multi-mode wireless systems in which oscillators simultaneously satisfy the oscillation conditions of two or more signals, thereby obviating the need for several signal sources...
July 5, 2007
U.L. Rohde and A.K. Poddar
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One of the critical building blocks in a multi-mode transceiver system is a multi-band VCO that is required for both up and down conversion. Mobile phones and radios, operating in several modes, are typically switching between receiving and transmitting frequencies, and therefore require low phase noise signal sources (oscillators/VCOs)...
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SMA Connectors with Extended Frequency Range

July 5, 2007
Rudy Fuks
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The most common coaxial connector in the microwave market, the Sub-Miniature A connector (SMA), was first introduced by Bendix Corp. in the late 1950s as a connector specially designed for the 0.141" diameter semi-rigid cable. At the SMA connector’s inception, the operating frequency did not exceed 12 GHz. As...
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Around the Circuit

July 5, 2007
Microwave Journal Staff
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Industry News Winchester Electronics Corp . announced that it has acquired the assets of Advanced Interconnect Inc ., Franklin, MA, and Kings Electronics Co. Inc. , Rock Hill, SC. Terms of the transactions were not disclosed. Tyco Electronics announced a strategic alliance with KeyTone Technologies aimed at providing comprehensive...
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New Products

July 5, 2007
Microwave Journal Staff
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DC-DC Buck Regulators The model FAN2106 is the first product in a new family of TinyBuck™ DC-DC buck regulators that integrate an advanced analog IC, MOSFETs and a boot diode into an ultra-compact molded leadless package (MLP). Measuring only 5 x 6 mm, the FAN2106 is the industry’s smallest...
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Shimadzu Opens New Regional Office

July 3, 2007
Microwave Journal Staff
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Shimadzu Scientific Instruments (SSI) announced the opening of a new regional office in Carlsbad, CA. This office allows Shimadzu to provide more direct sales, technical and service support for Southern California, Southern Nevada and Hawaii, and will be fully supported through the corporate office in Columbia, MD. The Carlsbad...
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