A new prototype chip-based antenna array that can be installed into a cellular base station smaller than a shoebox could use ultrahigh frequencies to supercharge future wireless networks, reports the MIT Technology Review. Developed by Intel, the technology builds upon research completed last year by Samsung and scientists from New York University. Reportedly capable of … [Read more...]
EV ‘Charge-Packet’ Method May Prevent Electric Grid Crash
Researchers at the University of Vermont have created a new method to handle the strain new electric vehicles will place on the nation’s electric grid. Plug-in electric vehicles, while still a small portion of the automotive market, continue to grow rapidly in popularity in part due to decreasing manufacturing costs and wider availability. In 2013, sales of full electric and … [Read more...]
Amplifier Expands Voltage Range for Insulation Analysis
Electrical test and measurement equipment provider Megger has released its VAX020 high-voltage amplifier for the reliable assessment of insulation conditions using dynamic frequency response (DFR) techniques, even in extreme high-interference environments such as HVDC substations. In addition, the amplifier also eliminates the difficulties associated with testing … [Read more...]
IEC 62761:2014: Guidelines for the Measurement Method of Nonlinearity for Surface Acoustic Wave (SAW) and Bulk Acoustic Wave (BAW) Devices in Radio Frequency (RF)
From the International Electrotechnical Commission webstore: "IEC 62761:2014-02(en-fr) gives the measurement method for nonlinear signals generated in the radio frequency (RF) surface acoustic wave (SAW) and bulk acoustic wave (BAW) devices such as filters and duplexers, which are used in telecommunications, measuring equipment, radar systems and consumer products. It includes … [Read more...]
Digital Predistortion Option Shortens Test Time and Simplifies Amplifier Evaluation
Rohde & Schwarz has announced the new R&S SMW-K541 digital predistortion option for its R&S SMW200A high-end vector signal generator. Predistortion can extend the operating range of amplifiers, says the company, but determining the right correction factors has always been a time-consuming process. The new R&S SMW-K541 digital predistortion option allows users … [Read more...]
LCL Filters for Recuperative Frequency Converter Systems
TDK Corporation has released a new series of EPCOS LCL filters for recuperative frequency converter systems. Consisting of a power choke, a capacitor bank with damping resistors and a robust choke, these new high-performance filters satisfy IEC / TS 62578 recommendations for EMI emissions between 9 kHz and 150 kHz. In combination with in combination with a recuperative … [Read more...]
Flexible Ferrites Offer EMI Shielding and Noise Suppression
Fair-Rite Products Corporation has announced the availability of new flexible ferrites. Available in four thicknesses and six material grades, the RoHS-compliant flexible sheets block noise at lower frequencies and absorb it at higher frequencies. The NiZn ferrite is placed between a 0.01 mm layer of PET film and 0.02 mm adhesive tape. Each sheet can be cut to size enabling it … [Read more...]
‘Personal Cell’ Technology Could End Network Congestion
Steve Perlman, founder & CEO at Rearden, and John Sculley, former CEO at Apple, discuss the development of pCell technology that ends cell phone dead zones and opens up high-speed wireless communication to all on Bloomberg Television’s “Bloomberg Surveillance.” (Video: Bloomberg) A San Francisco-based start-up has announced plans to commercialize a new wireless … [Read more...]
Medium and High Power RF Loads Protect Equipment from Power Surges
RF and microwave products manufacturer Pasternack Enterprises, Inc. has released new lines of medium and high power RF loads. These new RF loads, also known as RF terminations, are often used in aerospace, military/defense and test and measurement applications in order to protect radios and amplifiers under test from excess power in the system. A total of 24 new RF loads are … [Read more...]
CISPR 16-4-2:2011+A1:2014: Specification for Radio Disturbance and Immunity Measuring Apparatus and Methods – Part 4-2: Uncertainties, Statistics and Limit Modeling – Measurement Instrumentation Uncertainty
From the International Electrotechnical Commission webstore: "CISPR 16-4-2:2011+A1:2014 is a basic EMC publication. It specifies the method of applying Measurement Instrumentation Uncertainty (MIU) when determining compliance with CISPR disturbance limits. The material is also relevant to any EMC test when interpretation of the results and conclusions reached will be impacted … [Read more...]
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