The new Model 500A250A from AR RF Microwave Instrumentation is the first in a planned series of new “A” RF amplifiers. This first model covers 10 kHz to 250 MHZ and provides a minimum of 500 watts swept power when used with an RF sweep generator. A compact, innovative design has created a smaller size and reduced weight as compared to existing products. In fact, Model 500A250A … [Read more...]
New Solid State Amplifier Features an Improved Noise Figure and Compact Design
The new Model 500A250A from AR RF Microwave Instrumentation is the first in a planned series of new “A” RF amplifiers. This first model covers 10 kHz to 250 MHZ and provides a minimum of 500 watts swept power when used with an RF sweep generator. A compact, innovative design has created a smaller size and reduced weight as compared to existing products. In fact, Model 500A250A … [Read more...]
EMC & Eye in the Sky
Defense contractor Raytheon has announced that it has completed performance testing of its infrared missile warning sensor that can monitor an entire hemisphere from a single telescope. The test program completed at Raytheon’s space manufacturing facility in El Segundo, CA included electromagnetic interference, vibration, and thermal vacuum testing. The sensor encompasses … [Read more...]
Spread Spectrum Oscillator Reduces Electromagnetic Emissions
The Sit9003 spread spectrum oscillator from SiTime is touted as consuming one-third the power of comparable quartz-based solutions. The device reduces electromagnetic emissions by up to 12 dB. The 2.5-mm x 2-mm unit can be programmed for frequencies between 1 and 110 MHz. Other product features included available voltages of 1.8 V, 2.5 V, 2.8 V, or 3.3 V—as well as down-spread … [Read more...]
Surface Mount Filters Eliminate Conducted EMI in Data Line Applications
The PDLFxxxxL family of surface mount filters from Coilcraft eliminates the problem of conducted EMI in data line applications and provides common- and differential-mode noise attenuation. These devices reduce noise by a factor of 32 from 15 MHz to 300 MHz and provide 300 Vrms isolation and come in 4, 3, and 2 line versions. They are RoHS-compliant. Samples of all values and … [Read more...]
EMI Filter Targets High-Speed Wireless Handset Applications
The CM1693 EMI filter from California Micro Devices (CMD) is based on a four-pole, inductor-based architecture crafted to meet the emerging high-speed interface requirements of wireless handset applications. Based on the company’s proprietary Praetorian III® EMI filtering technology, the new filter has a two-layer coupled inductor architecture and large value inductances that … [Read more...]
NEW CISPR Standard Deals With Uncertainties in Standardized EMC Tests
CISPR 16-4-1 Ed. 2.0 (2009-02) is entitled “Specification for radio disturbance and immunity measuring apparatus and methods – Part 4-1: Uncertainties, statistics ad limit modelling – Uncertainties in standardized EMC Tests.” The document provides guidance on the treatment of uncertainties to those who are involved in the development or modification of CISPR electromagnetic … [Read more...]
MILMEGA to make presentation to South Eastern Michigan EMC chapter
USA Sales Manager Tom Mullineaux will be making a presentation to the South Eastern Michigan IEEE EMC Chapter on generating and calibrating 600v/m automotive test fields in an ALSE chamber.Scheduled for March 19th 2009, the presentation looks at possible antenna /amplifier combinations for generating 600 v/m @1m test distance, and looks at field calibration methods that avoid … [Read more...]
S.E. Michigan IEEE EMC Society Slates Session on Automotive Component Testing
The Southeastern Michigan IEEE EMC Society has slated a session on “600 V/m Field Generation and Field Calibration for Automotive Component Testing” on Thursday, March 19, 2009 at 5:30 pm at the University of Michigan, School of Management, Fairlane Center North, Dearborn, MI. Featured presenter is Thomas Mullineaux of MILMEGA, Limited.Registration is available through the … [Read more...]
Cutting Energy Loss in EM Materials
Researchers at Sweden’s Uppsala University have managed for the first time to measure magnetic properties in new materials with the help of electron microscopy. The secret behind the breakthrough is a successful elaboration of electron microscopy technology. First developed in 2006, a technique known as Electron Magnetic Circular Dichroism (EMCD) involves using an electron … [Read more...]
- « Previous Page
- 1
- …
- 532
- 533
- 534
- 535
- 536
- …
- 614
- Next Page »
