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June 2006 [Computer-Aided Engineering] Simulation Tools Build On Electromagnetic Analysis Computer-aided-engineering (CAE) software for high-frequency design and analysis comes in many shapes and sizes. What started as a handful-of tools running on time-share computers a few decades earlier has blossomed into a market populated by numerous software developers and extensive product lines. The software products are as varied from freeware tools to perform simple calculations and filter analysis to full-fledged frameworks under which other programs operate. What... — Jack Browne May 2006 [Components] Emerging Applications Fuel Antenna Development Last October, a radar antenna wreaked havoc at Boston's Logan Airport. According to the Boston Globe, test results fingered antenna as the cause of erroneous blips on their air-traffic controllers' radar screens. Those blips or "false targets" set off collision alarms. Although a replacement radar antenna resolved the issue, the fix did not come until many flights were delayed over two days' time. In addition, the Deferal Bureau of Investigation ... — Nancy Friedrich April 2006 [Components] Finding A Filter From An Array Of Choices Microwave filters come in a confusingly large range of shapes, sizes, and technologies. From the chiplike devices used in cellular telephones to the metal-housed cavities built to handle kilowatts of power, RF/microwave filters serve many purposes. Just knowing what is available helps when it is time to narrow the list of candidates for a particular application. As with most electronic components, the trend in microwave filters is for miniaturization but... — Jack Browne |
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