Almost all EMC engineers these days are familiar with MIL-STD-461 and its various revisions because it has influenced the procedures in virtually all present day EMC standards. The original document and the A, B and C revisions all had requirements for measuring both broadband (BB) and narrowband (NB) emissions. When MIL-STD-461 was first released (July 31, 1967), the … [Read more...]
Single-Chip Transceiver Developed for Compact Radar and Telecom Equipment
Fujitsu Laboratories announced that it has successfully developed its first single-chip transceiver. The transceiver uses a GaN-HEMT duplexer with low signal loss and high-output circuit integration design technology to control signal interference between the outgoing and incoming signals. The result is a transceiver chip operating at a frequency of 10 GHz with an output of 6.3 … [Read more...]
Astronomers Look to the Far Side of the Moon for RF Immunity
An astronomy team from the University of Colorado is hoping that the far side of the moon will offer their telescopes immunity from radio interference as they explore the origins of the universe. The only way to observe these dark ages of the universe’ past is to look for faint radio signals from neutral hydrogen, which filled the early universe. To do so telescopes need to … [Read more...]
World's Most Powerful Nanoscale Microwave Oscillators
A team of University of California, Los Angeles researchers has created the most powerful high-performance nanoscale microwave oscillators in the world, a development that could lead to cheaper, more energy-efficient mobile communication devices that deliver much better signal quality. The structures, called spin-transfer nano-oscillators, or STNOs, are composed of two … [Read more...]
Multiport Concept Enables Interference-Free Data Cabling
Phoenix Contact has introduced Multiport, a distribution concept that enables interference-free data cabling using Profinet and Ethernet in industrial applications such as welding robots and conveyor systems.The concept combines hybrid multiport distributors and push-pull connectors to allow users to implement a simple, EMC-compliant connection based on the Profinet cabling … [Read more...]
RF Diagnostic Chamber Fits on a Lab Bench
Rohde & Schwarz has introduced a new R&S DST200 RF diagnostic chamber that enables OTA performance and RSE testing of wireless devices right on the lab bench. Results are comparable to those of large RF test chambers over a wide frequency range, 700 MHZ to 6 GHz. The anechoic RF chamber has highly effective shielding at greater than 110 dB for interference-free testing … [Read more...]
New Flexible EMC/EMI Filter Modules
The Schaffner Group has expanded its product range with new EMC/EMI filter modules. The FN9280 series is equipped with single-stage EMC/EMI filters while the FN9290 series has a double-stage EMC/EMI filter with an attenuation of up to 80dB. The FN9290 series is suited for applications with higher interference levels, and the B versions of both series are suited for use in … [Read more...]
Signal Booster Enhances Data Transfers from Connected Devices
Wilson Electronics has introduced a line of signal boosters engineered specifically for M2M device installations. The dual band High Power Direct Connect signal booster produces more than 4 watts of output power on 800 MHz band, as well as the maximum allowable of 2 watts on the 1900 MHz band. This makes it an ideal complement to cellular modems operating on GSM or similar … [Read more...]
FCC Petitioned to Regulate Cellphone Signal Boosters
A new update to an FCC petition calls for tighter regulations on cellphone signal boosters. Wilson Electronics, T-Mobile, and Verizon Wireless have jointly filed two standards, which propose consumer cellular signal booster protection regulations. The first is a revised version of technical specifications for consumer boosters designed to operate on multiple frequency bands in … [Read more...]
University Of Waterloo Engineers Unveil Two-Way Wireless Breakthrough
Groundbreaking two-way wireless technology has been developed by a University of Waterloo engineering research team. The new technology enables wireless signals to be sent and received at the same time on a single radio channel frequency. The wireless advancement also suggests the potential for ultra-secure transmission. The cost in hardware and signal processing complexities … [Read more...]
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