Avago Technologies recently announced two new high-linearity gain block amplifiers that feature low current consumption and robust electrostatic discharge (ESD) protection. The AVT-55689 and AVT-54689 are housed in an industry standard SOT-89 package. The new devices operate in frequency bands from DC to 6000 MHz. They are well suited for use in cellular and WiMAX wireless base … [Read more...]
Amplifers
MILMEGA Strengthens Its EMC Credentials in Brazil
MILMEGA looks forward to bringing its unique RF and Microwave amplifier solutions to the Electromagnetic Compatibility Testing market in Brazil through it's partnering with AK-Telemedia. Headquartered in São Paulo, Brazil, AK-Telemedia is a recognised expert in the provision of EMC system solutions to the Brazilian market and MILMEGA looks forward to working with them to build … [Read more...]
MILMEGA Release Their New 80MHz – 1GHz 250W Amplifier
MILMEGA are proud to announce the release of their new 80MHz to 1GHz 250W amplifier. MILMEGA has been designing and manufacturing Microwave and RF Solid state amplifiers for over 20 years. During this time MILMEGA has continually expanded their range of amplifiers to address continually developing EMC testing requirements. The new 80RF1000-250 amplifier is the result of over … [Read more...]
System Compatibility: An Essential Ingredient for Achieving Electromagnetic Compatibility and Power Quality for Lighting Control Systems
Philip Keebler, Kermit Phipps, Frank Sharp, EPRI Lighting Laboratory For years, lighting systems have been operating as stand-alone loads without the use of sophisticated lighting controls for energy savings in all types of facilities—residential, commercial, and industrial. Utilities and end users viewed lighting controls in the past as, luxury, systems that were used only … [Read more...]
Differential Transfer Impedance of Shielded Twisted Pairs
Michel Mardiguian, EMC Consultant, Saint-Rémy-lès-Chevreuse, France The concept of Shield Transfer Impedance (Zt), introduced by S. Schelkunoff in 1934, is a very convenient parameter for the prediction and control of EMI coupling through cable shields. Although widely applied to coaxial cables against EMI susceptibility problems, the Zt parameter can be easily extended to … [Read more...]
1.04m Rod, Antenna Factor and Received Level in MIL-STD 462/461E Compared to MIL-STD 461F Test Set Up
David A. Weston, EMC Consulting, Inc., Merrickville, Ontario, Canada INTRODUCTION This paper shows that the antenna factor of the receiving rod antenna and the E field incident on it, from a standard source of radiation, both change when the counterpoise of the rod is either isolated from the ground plane on the table (new MIL-STD-461F set up), or connected, as per … [Read more...]
New Solid-State Amplifiers from AR Pack More Power into Smaller Packages – Free Datasheet
AR RF/Microwave Instrumentation has introduced a family of new solid-state amplifiers that are more compact, more efficient, and more powerful than previous models. The new “S” Series covers 0.8 – 4.2 GHZ and powers up to 800 watts. These models employ a new design that delivers more than twice the power of older models. With these improvements, AR has maintained the superior … [Read more...]
Field Generation Test System Is Fully-Shielded To Prevent EMI Interference
AR RF/Microwave Instrumentation has designed a complete field generation test system that is fully shielded, making it ideal for use in an anechoic chamber without being susceptible to or causing interference.Model AS18013 houses a variety of field generation equipment in two air-conditioned EMI-shielded equipment racks. Among the included equipment is the SC1000M3 system … [Read more...]
Solid State Broadband High Power RF Amplifier
Ophir’s Model 5088 is a 600 Watt broadband amplifier that covers the 0.01–200 MHz frequency range. This amplifier utilizes Class A/AB linear power that provides high output power and is one of the smallest RF power amplifiers in this power and frequency range. See a datasheet from Ophir. … [Read more...]
New Class D Amplifier Solves EMI Issues
Silicon Laboratories Inc.’s new class D amplifier effectively mitigates electromagnetic interference, bringing affordable fidelity to consumer audio electronics. The first member of Silicon Labs’ Class D amplifier family, the new Si270x amplifier can be used in a wide range of price- and noise-sensitive consumer audio products, including smart phone docking stations, tabletop … [Read more...]
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