The new WiMAX 2.5-GHz antenna from Andrew Corporation is a 65-degree, azimuth beamwidth, dual-polarized base station antenna that provides 18 dBi of gain and up to 10 degrees of electrical downtilt. Specifically, this antenna features Andrew’s proprietary Teletilt® variable electrical downtilt design—a feature that allow remote, temporary adjustment of the antenna to deal with … [Read more...]
Optic Rotary Encoder Targets Applications in MRI Units and Other Extreme EM Environments
The TD5207 from Micronor, a non-metallic fiber optic rotary encoder, has been designed especially for use in motion control systems operating in extreme electromagnetic fields. Medical diagnostic and research applications include MRI (magnetic research imaging) or NMR (nuclear magnetic resonance) tomography imaging systems. The encoder also serves as the control feedback … [Read more...]
CA Agency Calls for Plug-In Cars
The state of California's Air Resources Board has told car manufacturers to start producing vehicles that can be plugged into public electric utilities. The board ruled that car makers must produce at least 58,000 plug-in hybrid vehicles for sale in California between 2012 and 2014. Today's hybrid cars use an engine to charge their batteries, but the next step in "green … [Read more...]
AT&T Gives $2.4 Million for Automotive Research at Clemson
AT&T, Inc. has announced a $2.4 million gift to fund Clemson University's International Center for Automotive Research (CU-ICAR). Along with the investment comes the naming of the AT&T Auditorium, part of Clemson's Carroll A. Campbell, Jr. Graduate Engineering Center, the anchor of the 250-acre research campus now under development. During a preview of the auditorium, visitors … [Read more...]
EU Auto EMC Regulations
Almost all electrical and electronic devices fitted to most road-going vehicles, including after-market equipment, have to comply with the Automotive EMC Directive (2004/104/EC). This new Directive changes the type approval process - particularly in the case of aftermarket equipment. Approvals to the previous Directive (95/54/EC) are no longer valid. The course will explain the … [Read more...]
A Discussion on the FCC SAR Test Guidance Documents for Laptops and Handsets with Multiple Transmitters
The FCC will address exactly what TCBs can review for SAR and simultaneous transmitters in future updates to the TCB exclusion list. David A. Case, Cisco Richfield, Ohio, USA For those involved with product approval for Federal Communications Commission (FCC) certification, the use of the Telecommunication Certified Body (TCB) for approval helps speed the process for product … [Read more...]
EMI Absorber Sheets Work Below 1 GHz
EMI Absorber Sheets from 3M Electrical Markets Division provide enhanced absorption of electromagnetic interference at frequencies below 1 GHz. The 3M™ EMI AB5000S reduce EMI noise and harmonic coupling in electric equipment, cables, or circuits, including any portion covered by a shielded can. They reduce the EMI susceptibility of sensitive components, including RFID or Hall … [Read more...]
Silicone Gasketing Material Meets Requirements of MIL-DTL-83528
A family of conductive silicon elastomers from SAS Industries has been crafted for applications that require extremely high shielding effectiveness, environmental sealing, reliability, and durability. These elastomers are a unique composite of high quality silicone and conductive microscopic particles manufactured to strict formulations to yield gasketing materials that meet … [Read more...]
Three-Layer Filters Provides Dust Filtering and EMI Shielding
The ATI 3-layer filters from Alco Technologies is a superior dust filtration, EMI shielding filter for minimum air flow requirements. Aluminum extruded profiles surround three layers of aluminum screen and are welded in place. Three layers of wave-formed aluminum wire screen, each with a decreased depth are layered together in an arrangement resembling the look of a continuous … [Read more...]
Intertek Achieves Acceptance of Certification Marks from the United Arab Emirates
Intertek, well known for its EMI/RFI and other test offerings, has announced that its safety and certification marks have been formally accepted in the United Arab Emirates by the Dubai Civil Defense and Abu Dubai Civil Defense Departments. Intertek’s ETL and WHI marks acceptance provide manufacturers direct global market access to one of the fastest growing construction … [Read more...]
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