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Industry News

Coupled Triplets

A look at the trend toward using coupling between nonadjacent resonators to form finite attenuation peaks
Coupled Triplets Albert J. Klappenberger and William B. Lurie ALK Engineering Salisbury, MD As the state of the art in L-C filter design realization moves forward to satisfy the changing demands of today’s requirements, it appears that some of the more sophisticated techniques are giving way to older, less...
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Integral Resistors in High Frequency Printed Wiring Boards

Integral resistors in the form of planar resistor technology in printed wiring boards that have become a tool of the circuit designer for addressing increasingly complex packaging demands
Integral Resistors in High Frequency Printed Wiring Boards Bruce P. Mahler Ohmega Technologies Inc. Culver City, CA The growing need to eliminate discrete resistors is driven by design trends toward faster speeds, shorter trace lengths and smaller boards with higher component densities. Printed wiring boards (PWB) have become complex...
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RF Receiver Requirements for 3G W-CDMA Mobile Equipment

Detailed specifications for a wideband CDMA (W-CDMA) receiver derived in terms recognizable by the RF designer
Technical Feature RF Receiver Requirements for 3G W-CDMA Mobile Equipment O.K. Jensen, T.E. Kolding, C.R. Iversen, S. Laursen, R.V. Reynisson, J.H. Mikkelsen, E. Pedersen, M.B. Jenner and T. Larsen Please click here to view the pdf file of the Technical Feature...
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Radiating Elements for Wideband Phased Arrays

The principles of electronically scanned arrays applied to the selection of a radiating element for an array
Technical Feature Radiating Elements for Wideband Phased Arrays Warren L. Stutzman and Carey G. Buxton Please click here to view the pdf file of the Technical Feature...
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Computer-aided Design of Ultrabroadband 100 MHz to 20 GHz Amplifers

Design and fabrication of ultrabroadband feedback amplifiers using the negative feedback concept
Technical Feature Computer-aided Design of Ultrabroadband 100 MHz to 20 GHz Amplifiers A.S. Virdee and B.S. Virdee Please click here to view the pdf file of the Technical Feature...
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Pulse Operation of Transmission Lines Including Skin-Effect Resistance

Skin effects that produce significant changes in the pulse propagation along a twisted-pair transmission line
Technical Note Pulse Operation of Transmission Lines Including Skin-Effect Resistance Larry Giacoletto Please click here to view the pdf file of the Technical Note...
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Around the Circuit

Around the Circuit INDUSTRY NEWS Radio-based solution and wireless telephony and data communication product manufacturer Allgon AB has acquired Wireless Solutions Sweden AB . Under the terms of the acquisition, the companies are expected to cooperatively develop products and services for third-generation systems for wireless communications, specifically EDGE and...
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New Literature

New Literature Power Product Booklet This booklet, 10 Hints for Using Your Power Supply to Decrease Test Time , provides suggestions to help engineers speed up testing time by making the most of the company’s power products. Agilent Technologies Inc., a subsidiary of Hewlett-Packard Co., Palo Alto, CA (800)...
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New Products - Components

Components Voltage-variable Attenuators The models AV109-73 and AV110-73 GaAs IC FET voltage-variable attenuators provide greater than 30 dB of relative attenuation range at 900 and 1900 MHz, respectively. Both voltage-variable attenuators feature good linearity performance with a linear transfer curve of 10 dB/V slope and input/output SWR of less...
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New Products - Amplifiers

Amplifiers Broadband Power Amplifier Module This octave bandwidth L-band power amplifier module provides 15 W with an instantaneous bandwidth of 1 to 2 GHz and a small-signal gain of 12 dB. The amplifier module can be operated in either class A as a linear amplifier with an output power...
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