Radio frequency (RF) generators produce alternating current (AC) at specific frequencies ranging from kilohertz to gigahertz.

Knowles’ DSM supercapacitor modules use EDLC cells in series to expand energy storage capacity across a broader voltage range. Their instant charge and discharge capabilities outperform batteries, but without the shipping restrictions, thermal runaway risks, or much shorter lifespans associated with lithium-ion technology. 

Engineers designing for medical imaging and high-frequency applications need components that ensure minimal power loss, high signal integrity, and zero magnetic interference.

Knowles’ new FM2 range of Non-Magnetic X7R Low Loss Multilayer Ceramic Capacitors (MLCCs) is engineered to deliver superior RF efficiency and uncompromised reliability. These MLCCs provide lower equivalent series resistance (ESR)/higher Q factor compared to standard X7R capacitors, making them ideal for MRI systems and low-noise amplifier (LNA) applications. 

More than 3 million people in the United States alone rely on a pacemaker to regulate their heart rhythm. While the battery may be the most recognizable component in the system, capacitors are just as essential to ensure these implantable devices function safely and reliably over time. 

Alongside capacitors, inductors are essential components in RF and microwave applications. Ceramic core inductors provide stable inductance values, ensuring consistent performance across a broad frequency range. These qualities make them ideal for applications where low loss and high efficiency at high frequency are critical.

Whether used in signal filtering, impedance matching or energy storage, ceramic core inductors play a vital role in optimizing circuit performance. As demand for high-performance RF components grows, Knowles is offering high-Q ceramic core inductors for superior efficiency and reliability, making them well-suited for standard and high reliability applications.

With deep expertise in advanced miniaturization, Knowles delivers capabilities including micro electromagnetic sensor coiling, micro molding, micro stamping, precision machining, micro-electronics integration, and compact high-density assemblies. Our engineering and manufacturing teams collaborate early in the development cycle to ensure designs are optimized for performance, scalability, and cost-efficiency. 

From high-power radar to advanced medical imaging, many cutting-edge technologies rely on precisely controlled high-energy pulses. However, generating a pulse that delivers consistent power without distortion isn’t as simple as discharging a capacitor. These systems rely on Pulse Forming Networks (PFNs) to shape and control high-energy pulses. 

From the National Ignition Facility (NIF) in California to the High Magnetic Field Facility in Dresden, high-energy capacitor banks are at the heart of high-power pulsed energy experiments worldwide. These systems provide a massive amount of fast-discharge energy for experiments that push the boundaries of science and technology. 

Magnetic resonance imaging (MRI) is a powerful diagnostic tool for generating detailed images of the body using advanced physics and engineering. Here, we’ll cover the interplay between the two fields and the RF innovations driving MRI advancements. 

With more and more mission-critical systems relying on electrical power, consistent and reliable backup power is essential to ensure uninterrupted operation. Facilities like data centers and hospitals leverage backup power to manage the short, but potentially catastrophic, delay between grid power failure and the start of long-term back up (e.g., local generation via diesel generators).