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With recent advances in telecommunications, the use of microstrip antennas is increasing for a wide range of modern microwave systems. This is mainly due to the features of microstrip antennas: low profile, lightweight, conformable to nonplanar surfaces, and easy and inexpensive mass production. They are well suited for integration...

The Marchand balun may be one of the most popular forms of microwave balun used to generate a balanced signal. In particular, the planar coupled-line Marchand balun shows good compatibility with microwave integrated circuits (MIC) and monolithic MICs (MMIC). 1 Numerous studies about its design and analysis have been...

Published May 8, 2006 In an effort to better combine the editorial content of our magazine with our newly developed and retooled on-line presence, we have decided to expand Harlan's RF and microwave engineering advice into a monthly feature that appears in Microwave Journal. Harlan has selected one question...

With the deal expected to be closed in early June, Motorola Inc. and BenQ have signed an agreement, under which Motorola will acquire from BenQ a state-of-the-art research and development center, associated development and test equipment, and a team of product development engineers in Aalborg, Denmark. The facility and...

The military test and measurement market has entered a new phase with the news that EADS Test & Services has acquired IFR , based in Blagnac near Toulouse, France. The company specializes in software systems for aircraft management and Maintenance Information Systems in particular. Under the agreement IFR will...

Recent advances in mobile phone RF modules have been made for the miniaturization and integration of components in such a manner that they can address all of the global standards. The stringent specifications for the different systems have to be met using inexpensive surface-mount plastic modules, which integrate diverse...

JEM Engineering , a custom antenna design, manufacturing and testing services company, announced that it has co-engineered an artificially-evolved antenna with NASA , becoming the first of its type in space. The evolved antenna – mounted on three of NASA’s Space Technology 5 (ST5) satellites – was launched into...

Basic antenna theory shows that the scattering cross-section of an antenna is often much larger than the physical cross-section of the metal wires from which the antenna is constructed. In the case of RFID tags, a large number of tag antennas may be present in close proximity to one...

Filtronic plc , a global designer and manufacturer of customized microwave electronic subsystems for the wireless telecommunications and defence industries, and Powerwave Technologies Inc. , a global supplier of end-to-end wireless solutions for wireless networks, announced that the companies have entered into a period of exclusive negotiations for the...

Since the Federal Communications Commission (FCC) released UWB technology, 1 many researchers have made efforts to develop UWB radio systems. 2,3 As the antenna is a key component of a UWB radio system, many antenna designs for UWB applications have been published. 4 A monopole antenna has the advantage...