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Industry News

Web Update

Prototype Quantities On-line ATC QUIKBuy™ provides a site where customers may place on-line orders for small product quantities. ATC QUIKBuy offers the EIA-size ultra-low ESR capacitors, the 600F (0805) and 600S (0603). ATC has now expanded its on-line product offerings to include the 600L (0402), as well as RF...
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New Products

NEW WAVES: Test, Measurement and CAD
Digital Vector Signal Analysis This combination of solutions tightly integrates the digital signal capture power of the company’s logic analyzers with its 89600 series vector signal analysis (VSA) software. The result is a powerful digital vector signal analysis measurement system that delivers precise, accurate modulation measurements on the digitized...
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A Multi-octave, Open-boundary, Quad-ridge Horn Antenna for Use in the S- to Ku-bands

This article introduces a new antenna design to be used in anechoic chambers as a source antenna for 3D pattern measurements. When measuring 3D patterns, the receiving antenna in the anechoic chamber must be able to sense the two orthogonal components ...
In a previous publication, 1 the author introduced a new dual-ridge horn that corrected the pattern problems of the traditional dual-ridge horn antenna. 2 All the parameters of this new horn, shown in Figure 1 , were measured and it was tested for use as an EMC immunity and...
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MicroMetrics Expands Epitaxial Services

MicroMetrics Inc. , a manufacturer of semiconductor devices for commercial and military communications, announced the expansion of its epitaxial growth and coating services for the semiconductor fabrication market. The newly expanded Londonderry, NH facility now includes seven Gemini Epi reactors. This dedicated business unit supports the growing of three,...
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An Efficient, Interactive Optimization Solution for Analog and RF Design

Optimization has been applied to circuit design for decades. IBM pioneered circuit simulation-based optimizer research in the 1960s and ’70s. In the 1980s, the University of California at Berkeley extended the research with more exotic algorithms and interactivity with programs such as DELIGHT and ECSTACY. During the same period,...
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Anechoic Chamber Measurement Improvement

The well known and widely used "Termination-VSWR" method, used to measure the reflectivity of an absorber wall in an anechoic chamber, has been considerably modernized with the help of new vector network analyzers (VNA) and personal computers (PC), taking advantage of fast sweepers or synthesizers and of the time-domain...
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Silicon-on-Sapphire Disrupts RF Switch Market

In its latest Insight report, "Silicon-on-Sapphire Switches for Handsets: Stopgap or Disruptive Technology?," Strategy Analytics , the research and consulting company, evaluated CMOS silicon-on-sapphire (SoS) RF switches and found that SoS has begun to disrupt established approaches to transmit-receive (T/R) switching in multi-mode, multi-band cellular handsets. Peregrine Semiconductor has...
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