Introduction For Army, Navy, and Air Force military equipment and DO-160 commercial aircraft avionics, radiated susceptibility test levels as high as 200 V/m may be specified. As always, it is better to design immunity to the test levels into equipment than to wait until equipment is completed and then perform tests. This article assumes the worst-case qualification test … [Read more...]
Military
MIL-STD-461G Passive Device Calibration Review
The Requirement: When MIL-STD-461 revision “G” was issued, I believed that the answer to many of my measurement equipment calibration issues had been solved. Right there in the “Calibration of measuring equipment” paragraph the requirements clearly stated: After the initial calibration passive devices such as measurement system antennas, current probes, and LISNs, require no … [Read more...]
Review of Induced Signal Susceptibility Testing—DO-160 Section 19
The Issue Induced signal susceptibility has been a factor in electronic equipment performance since the dawning of voltage and current. Often referred to as crosstalk, the undesired coupling of one circuit’s signals to another may result in interference that degrades the integrity of either signal. This article examines the testing process prescribed by RTCA DO-160 Section … [Read more...]
KP Performance Antennas Adds New 2-foot and 3-foot Antennas with Mimosa® B11 Mounting Kits to 11 GHz ProLine Parabolic Antenna Line
KP Performance Antennas, an Infinite Electronics brand and a manufacturer of wireless network antennas, has just released new 2-foot and 3-foot antennas with Mimosa® B11 mounting kit options to its new series of ProLine 11 GHz parabolic antennas. KP’s new high-performance ProLine parabolic antennas are ideal for high-density, point-to-point backhaul applications or … [Read more...]
New at Heilind Electronics: Amphenol RF’s Ruggedized ARC Connectors
Heilind Electronics, a premier international distributor of electronic components, has expanded its line of harsh environment interconnects with Amphenol Ruggedized Connectors (ARC). Featuring a 50-ohm impedance and DC to 6 GHz frequency, the new connectors are designed and manufactured by Amphenol RF, a leader in coaxial solutions. The ARC family of connectors offers a … [Read more...]
Review of Bonding and Grounding Requirements
The Question What is the required bonding and grounding requirements to achieve compliance with the various electromagnetic compatibility (EMC) standards associated with electronic equipment? I received this question a few days ago and quickly realized that a quick and easy answer was not feasible since I virtually had no knowledge of what kind of equipment types were … [Read more...]
XGR Technologies Acquires All SnapShot® EMI Shielding Assets from W.L. Gore & Associates
XGR Technologies, a Delaware based company, has acquired all assets related to the SnapShot® board level, EMI shielding business from W.L. Gore & Associates. The acquisition includes intellectual property, patents, manufacturing equipment, and commercial assets. SnapShot® EMI shields were launched by Gore in 2002. They have an eighteen-year track record of proven success … [Read more...]
Harwin Introduces FPC Assemblies with Hi-Rel Connectors
Harwin now offers both its Datamate J-Tek and Gecko high-reliability (Hi-Rel) connectors with flexible printed circuits (FPCs) attached for situations where there is little space above the board surface. Highly suited to aerospace, motorsport, satellite, and defense installations, these FPC assemblies provide engineers with lower profile interconnect solutions. This means that … [Read more...]
Laird Performance Materials Adds Ability to Equip Foam Microwave Absorbers for ‘All-Weather’ Use
A unit of Laird Performance Materials recently added the ability to protect foam absorbers from moisture and heat—making them suitable for use in all outdoor environments. Broadband and lightweight, foam absorbers offer military and aerospace design engineers a valuable alternative to elastomers when seeking to minimize signal interference from direct reflection. … [Read more...]
Electromagnetic Pulse: The Myths and Reality
Introduction Some 10-15 years ago this topic was irrelevant for the civil sector, and the issue of protection of electrical and electronic equipment from high altitude electromagnetic pulse (HEMP) solely belonged to military specialists. Today, much of the mass media discusses HEMP danger for civil infrastructure at the global level in all possible ways; and thus, this topic … [Read more...]
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