A new brochure just released by AR RF / Microwave Instrumentation details the firm’s comprehensive line of antennas for EMI/RFI testing. These antennas are power and frequency matched to the firm’s amplifiers (1 to 15,000 W / 10 kHz to 50 GHz). Brochure content includes detailed information and specifications on log periodic, high gain RF horns, microwave horns, E-field … [Read more...]
Antennas
- Free EMC Formulas & Equations: dBm, Volts, Watts Conversion
- Free EMC Formulas & Equations: Antenna Factor and Gain Calculations
- Free EMC Resource: VSWR vs. Return Loss Cheat Sheet
- Free Article: The Importance of Antenna Beamwidth in RF Testing
- Free Article: 4 Reasons To Get A Bilogical Antenna First For Device Testing
Horn Antenna for Radiated Immunity and Emissions Testing
The HRN-0118 Horn Antenna from TDK RF Solutions is a wide-band, double-ridged horn used to transmit and receive microwave signals over the frequency range of 1 GHz to 18 GHz The HRN-0118 generates the high electric fields required for radiated immunity and emissions measurements and features high gain, low VSWR (<5:1 average), and moderate power handling (300 watts). A … [Read more...]
NTS Offers Expanded EMI Testing in Its NJ Laboratory
National Technical Systems has announced that its Tinton Falls, NJ laboratory is now equipped to offer high-level EMI testing for electronics and avionics. The lab’s new capability simulates high intensity radar sweeps encountered in hostile combat areas and in final approaches to civilian airports. The expansion includes the installation of a new shielded room, sophisticated … [Read more...]
South Carolina Seeks to Jam Cell Phones within Prisons
As this eNews was being prepared, a scheduled demonstration at the Lieber Correctional Institution in Ridgeville, SC was postponed because of severe weather conditions. Presumably, it will be rescheduled. The South Carolina Department of Corrections and Florida-based electronics firm CellAntenna Corporation had planned a demonstration of CellAntenna’s equipment on Tuesday, … [Read more...]
Antenna Suite Targets HIRF Testing Applications
A suite of three high-gain, high-power microwave horn antennas from AR RF Microwave are intended for use in DO 160 HIRF (high intensity radiated frequency) testing. These antennas provide even more options for varying test conditions. The AT4444 provides 2 to 4 GHz/ 1000 watts CW / 17-kw pulse input power while the AT4446 provides 4 to 6 GH / 800 watts CW /15-kW pulse power. … [Read more...]
Antenna Mast Crafted for EMI/EMC Testing
The AM-400 from Com-Power Corporation is an antenna mast well suited to making EMC measurements in an OATS (open air test site) or in test chambers. The height of the antenna can be varied from one to four meters during measurement as required by commercial EMC specifications. The mast is constructed using fiberglass tubes and grating material. These were chosen because they … [Read more...]
Portable, Folding Biconical Antenna Performs Site Attenuation Measurements
The SAS-542 Folding Biconical Antenna from A.H. Systems was the first EMC antenna designed for portable compliance testing applications. Product features include a frequency range of 20 MHz to 330 MHz, maximum continuous power of 1 watt, impedance of 50 Ω, and a maximum radiated field of 2 V/m. These antennas are individually calibrated (1-, 3- and 10-meter calibration … [Read more...]
Understanding Shielding Effectiveness of Materials and Measurements in the Near-Field and Far-Field
When we treat the shielding effectiveness measurement with a uniform field, the results are similar for both near and far fields. Kermit O. Phipps and Philip F. Keebler EPRI EMC Laboratory, Knoxville, TN, USA INTRODUCTION Traditionally Schelkunoff’s shielding effectiveness equation is used universally in teaching and practice throughout the EMC community as a whole. In this … [Read more...]
Luebbers Steps Down at Remcom
Dr. Raymond Luebbers, CEO, president and co-founder of Remcom, the well known EM and antenna simulation software firm, has retired. Dr. Stephen Fast, former executive VP has assumed his duties. Dr Luebbers founded Remcom in 1994 while a professor at Pennsylvania State University. His co-founders were two of his graduate students, Scott Langdon and Christopher Penney. Dr. … [Read more...]
Simulation of In-Vehicle Human Exposure to Electromagnetic Fields from On-Board Transmittors
Numerical models can provide data from enormous numbers of points and for a number of human simulants Alastair R. Ruddle, PH.D., MIRA Limited Nuneaton, UK On-board transmitters are already commonly encountered in the vehicle environment; typical examples include mobile telephones, Bluetooth systems, and communications equipment used by the emergency services and armed forces. … [Read more...]