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A chain is only as strong as its weakest link and an RF measurement is only as reliable as the most uncertain component or practice. Increasing complexity of communication schemes are driving stringent performance requirements of today’s RF components and networks. The vector network analyzer (VNA) is the instrument...

Modern base station receivers for wireless communication infrastructures cope with extreme sensitivity and intermodulation characteristics, requiring sub 1 dB noise figures and high linearity for the low noise amplifier (LNA). Until recently, these specifications were only met using compound semiconductor technologies like GaAs PHEMT. However, NXP’s latest developments with...

The increasing demand for high frequency components with various applications and the need to test such components require effective and efficient calibration of the measurement systems that are used. In order to have a wide field of application calibration, devices need to be both economic and technical. In particular,...

An antenna measurement facility is typically one of the largest capital investments an antenna manufacturer makes. Therefore, companies commonly specify a test range that seeks to fulfill all requirements within a single chamber. In the resulting facility design, the overall physical dimensions are driven by the largest expected test...

Adapters East Coast Microwave Distributors has launched a new website to locate nearly every RF/microwave coax adapter. The website allows you to choose from a wide range of manufacturer’s adapters, by separating commercial-grade adapters from Mil-Grade ones. All roads lead to ADAPTER CITY! East Coast Microwave 70 Tower Office...

Components Millimeter-wave Balanced Mixers Ducommun Technologies offers balanced mixers that are available in six waveguide bands to cover the frequency spectrum from 26.5 to 110 GHz. These mixers employ high power performance GaAs Schottky beamlead diodes and balanced configuration to produce superior performance and a moderate LO pumping level....

Understanding Modern Transistors and Diodes David L. Pulfrey From GaAs HBTs in cell phones to Si MOSFETs in computers to base stations with LDMOS transistors, Understanding Modern Transistors and Diodes covers the various major semiconductor technologies used in modern electronics. The purpose of this book is to provide a...

Math, Science and Logic Puzzles For The 'ENGINERD' In All Of Us (Re-Printed with Permission from PZZLS - www.PZZLS.com Download the Puzzler (PDF) Voltage Voodoo In the figure, an electrical circuit is drawn. In the middle of the circuit, an infinitely long metal bar is placed (indicated with the...

At IMS 2011, American Microwave Corp. (AMC) featured its new integrated switch matrix technology. AMC brings microwave integrated circuit technology to the solid-state switch matrix resulting in a hybrid switch matrix on a single substrate (SMS). Using a multilayer substrate, AMC is able to meet customers' needs for low...

At IMS 2011, Laser Services was promoting laser cutting EMI and bonding materials. The company offers distinct advantages over machine cutting of frozen epoxies and EMI/noise suppression materials, according to Laser Services of Westford, MA. Achieving consistency and repeatability with traditional methods of machining is challenging, as these methods...