Learn the benefits of using a pre-certified radio frequency (RF) module in the design phase when building a new IoT application, and learn the implications in EMC and Radio certifications. The Internet of Things (IoT) is revolutionizing the quantity and manner in which we exchange and store information. Historically, people exchanged information through reading and … [Read more...]
Space Weather – Predicting EMC Effects of Solar Storms
When we think about weather, we know what it is. We feel it, worry about it, and talk about the heat, the moisture, the wind. Weather is dynamic, though mostly predictable because we can measure its conditions. We also know that the atmosphere involves large scale electrical activity. Cloud masses move above and below each other, generating enormous static-electricity … [Read more...]
Exodus 18.0 – 40.0 GHz, 80-Watt SSPA, AMP2145D-LC – Another Industry First!
Exodus Advanced Communications, 18.0 - 40.0 GHz, 80W Solid State Amp is another industry first from Exodus. Designed for Broadband EMC & Lab Testing, Mil-Std 461(RS103) standards as well as other High-Power Applications. Exodus Model AMP2145D-LC is a compact 6U design providing outstanding power/gain flatness, Forward/Reflected power monitoring in both dBm & Watts, … [Read more...]
Simultaneous Operations (SIMOPS) of Radio Systems Due to Antenna to Antenna Coupling on an Aircraft
Although specifically dealing with aircraft systems, the methods described in this article are applicable for other platforms where a number of antennas are in close proximity. The number of antennas in use and in close proximity on mission specific aircraft are as many as 22 on a small search and rescue aircraft. ANALYSIS METHODS The methods of coupling analysis include … [Read more...]
Use of Ferrite-Loaded Absorber to Reduce Wireless Self-Interference
Self-generated EMI from DC-DC converters, as well as digital and video processing, has long plagued designers of wireless and IoT devices, especially since physical sizes have trended smaller. The broadband harmonic content often extends up through 1.5 GHz, which includes most wireless protocols, cellular LTE and GPS/GNSS bands. One new mitigation technique I’ve been trying … [Read more...]
Designing and Selecting Filters: Using Soft Ferrite Cores
All inductors (L) suffer from RF resonances, and are only effective in filters at frequencies not far above their first (parallel) resonance (see section 1.8.1 of [7]). But so-called ‘soft ferrites’ behave resistively at RF, and the resulting lack of RF resonances helps make filters that use them have better and more predictable performance at RF. For example, a typical small … [Read more...]
FCC Rules to Open Supplement Coverage from Space (SCS) to Assist Emergency Services
In March 2024, the Federal Communications Commission (FCC) adopted rules to facilitate the deployment of supplemental coverage from space (SCS). The new rules are intended to serve several important public interest goals for the Nation and expand the reach of communications services, particularly emergency services, so that connectivity and assistance are available in more … [Read more...]
NEMA Receptacles 5-20R with Ease of Assembly and More Power Performance
SCHURTER introduces the new NR520 series NEMA 5-20R outlets, adding to its existing range of 5-15R types. The new configuration extends the range of outlets rated 15 A to include a 20 A version for applications with increased power demands. SCHURTER’s NR520, which is the NEMA standard 5-20R [20 A at 125 V] configuration, complements SCHURTER’s existing range of outlets with … [Read more...]
Wireless Network Interference and Optimization
Introduction With the proliferation of embedded wireless systems in all imaginable products, comes the risk of increasing interference and resulting slowdown in data transfer. As we transition to a more mobile and connected society, the number of Wi-Fi (home appliances and control) and Bluetooth-enabled devices (speakers, headset, watches, etc.) is rapidly increasing. Add … [Read more...]
How to Choose Particle-Filled Silicones to Meet Multiple Design Requirements
Many electronic designs need shielding materials that combine resistance to electromagnetic interference (EMI) with other application-specific requirements. For example, the EMI gaskets that are used in military touchscreens need to attenuate EMI emissions, provide electrical conductivity, and ensure environmental sealing. These shielding gaskets also must also cushion the unit … [Read more...]
