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In recent years, there has been a growing interest in electromagnetic bandgap structures (EBG), which exhibit the properties of rejecting electromagnetic waves at certain frequencies. The most interesting applications for these structures are the filtering of frequency bands or the suppression of undesired spurious passbands and harmonics in microwave...

Microstrips (MS) and coplanar waveguides (CPW) are two of the main waveguide structures used in higher frequency applications, because of their compatibility with monolithic fabrication and solid-state devices. In CPW, the signal lines and ground planes are placed on one side of the substrate, permitting a circuit consisting of...

Manchester, UK, has been a major port and trading centre since the 1700s and the tradition continued in September when European Microwave Week (EuMW) visited the city for the first time and set out its stall at the G-MEX/MICC Complex. Exhibitors not only traded new and innovative products at...

The rapid growth and hunger for information technology and electronic media has created a ‘global village,’ as mass communication, combined with a need and willingness to exchange ideas, has ‘shrunk’ the modern world so that knowledge, expertise, investment and new markets are more easily accessible. Inhabiting a particularly vibrant...

CMOS technology continues to gain market acceptance for high performance applications due to the combination of low cost, high level integration and availability. As a result, more engineers are experimenting with CMOS processes and customizing new methodologies to integrate RF, analog and digital circuits in a single chip. The...

Amplifier Synthesis Software ACS has recently added new amplifier synthesis software to its line of circuit synthesis products. The wizard-like GUI quickly and effortlessly guides the user through the process of entering the specifications for the automatic synthesis of a wide variety of amplifier circuits, including single or multistage...

Thick Film Attenuator The model IMA2391 is a surface-mount thick film 1206 attenuator especially suited to RF/microwave applications and communications-oriented circuitry. This thick film attenuator is operational to 15 GHz in a properly matched continuous 50 Ω system. It is available from 1 to 70 dB in 1 dB...

Application Note “Selecting the Right Switch Technology for Your Application” is a free solid-state switch application note that helps in determining the right switch technology to accessorize and/or complement a system set-up. This application note provides a selection of products currently offered by Agilent to serve as a platform...

UFundamentals of Engineering Electromagnetics Rajeev Bansal, Editor CRC Press • 400 pages; $89.95, £49.99 ISBN: 0-8493-7360-3 This book is intended as a desk reference for the fundamentals of engineering electromagnetics. In Chapter 1, Fundamentals of Electromagnetics Revisited, the fundamental aspects of engineering electromagnetics are presented from the view of...

In last year’s November Microwave Journal article on components, Harlan Howe, Jr. authored an insightful and interesting article covering the history of microwave components. A whimsical Figure 1 depicted a dinosaur staring into the antenna of the first stone-age radar, while Figure 4 depicted a lady sitting on top...