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Ansoft Designer was introduced to the RF/microwave industry when “The New World of Communications Design Software” appeared as a cover feature in Microwave Journal back in March 2001 (see Figure 1 ). Ansoft, now a division of ANSYS Inc., had developed a new design environment from the ground up,...

In building a strategy for effective integrated-circuit design, it is important to understand the characteristics of different RF and microwave planar dividers/combiners. Optimization of the design process for dividers and combiners can reduce unnecessary costs and design iterations, thus allowing designers time to improve the quality of the product....

Did you know that February was among the last two months (along with January) to be added to the Roman calendar? According to Wikipedia, the Romans originally considered winter to be a“month-less” period. NFL fans experience a similar feeling on the morning after the Super Bowl, which, coincidentally, is...

There is little doubt that tomorrow will bring additional engineering design opportunities in the ever changing, ever expanding global RF and microwave applications arena. In the time it takes to read this paragraph, a new opportunity has been identified in Asia involving high-speed data, and one or two systems...

After more than ten years of design and construction by scientists and engineers across the globe, the Atacama Large Millimetre/submillimetre Array (ALMA) has passed a key milestone, known as ‘phase closure’, crucial for the high quality images that will be the trademark of this new tool for astronomy. Engineers...

In the late 1970s, when one of the authors (Rautio) first got started in microwaves, one of his first tasks was to design filters on alumina for Landsat IV. The design was carefully performed using the commonly assumed substrate dielectric constant of 9.8. Even so, several design iterations were...

Park Electrochemical Corp. manufactures a complete line of reliable, high-value substrates for commercial and military critical microwave components, antennas and subassemblies. Their new non-PTFE resin system, Mercurywave™ 9350 (Mercurywave is a trademark of Park Electrochemical Corp.), is tailored to meet the needs of the RF and microwave market. With...

Simulation Software ANSYS Inc. announced the release of ANSYS® Engineering Knowledge Manager™ (ANSYS® EKM™) 2.0, a product focused on simulation process and data management (SPDM). The solution set addresses some real-world challenges that engineers face, such as how to better manage, share and reuse simulation data as well as...

Components, Boards & Systems Download the Puzzler Download the Puzzler (PDF) Across 1 Amplifier that uses polar coordinates representation of a signal-vector instead of traditional Cartesian I-Q representation (3 words) 7 Uses finite element math to approximate how a circuit will behave (2 words) 9 When the dielectric constant...

The end-of-life for a semiconductor product can leave OEMs of systems with long lifecycles scrambling for a supply of vital parts, forcing them into a difficult procurement situation. Some have turned to the so-called “gray market”, a term that refers to the fraudulent manufacturing and distribution of counterfeit semiconductors....