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ISSUE DATE: NOVEMBER 2003 | |
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November 2003 - In This Issue [Cover Story] RF Design Environment Closes Verification Gap Design verification requires a full suite of circuit and device models, analysis tools, and simulated measurement capabilities. The RF Design Environment (RFDE), introduced in September 2002 as the first product developed as part of the alliance... — Mounir Adada , et al. [News] Annual IEDM Heralds Device Developments Device technology progresses quickly, even in the eyes of those who track semiconductor advances. For those interested in the state of the art, there may be no better place to compare standards than the annual International Electron Devices Meeting... — Jack Browne [Design Features] Simple PBG Structures Serve Microwave Designs Photonic-bandgap (PBG) structures provide effective and flexible means of controlling electromagnetic (EM) waves along a specific direction. PBG structures are formed with microstrip lines and simple periodic perforations on a ground plane. By... — Guan-Yu Chen , et al. [Design Features] Linearizing MPMs For Communications Microwave power modules (MPMs) have been widely used in military applications, including radar and electronic-warfare (EW) systems, but less so in communications applications because of their limited linearity. By combining an MPM with a linearizer,... — Robert Gray , et al. [Design Features] Make Accurate Pulsed S-Parameter Measurements Vector network analyzers are traditionally used to measure the continuous-wave (CW) S-parameter performance of components. Often, under these operating conditions, the analyzer is functioning as a narrowband measurement instrument. It transmits a... — Loren Betts [Product Technology] Low-Cost Driver Powers OC-192 Modulators To 12.5 Gb/s High-capacity OC-192 optical transmitters and receivers often require optimized components, such as modulator drivers, to achieve the best performance. Due to high levels of integration, such components are typically difficult to modify.... — Andrea Betti-Berutto [Product Technology] Novel Materials Form Tunable Components Tuning a high-frequency circuit usually involves trimming a variable capacitor or turning a mechanical tuner. By using innovative circuit materials formed of barium-strontium-titanate (BST) dielectric, however, Agile Materials & Technologies... — Jack Browne [Product Technology] CD-ROM Course Teaches Filter Design Engineers faced with pressing deadlines and excessive demands for their time may lack the opportunity to participate in continuing education courses at an accredited institution. But most engineers should be able to find the time to investigate a... — Jack Browne [Editorial] The Propagation Of RF Technology Once upon a time, researchers discovered that radio waves could be used for more than just radios. As radar technology blossomed during World War II, an industry took root, growing steadily on a diet of largely military applications, such as... — Jack Browne |
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