Across aerospace and defense applications, industrial systems, and medical devices, modern technologies increasingly depend on precise, reliable, and repeatable power delivered within tightly controlled timeframes. These requirements place growing demands on the components that store and release energy, particularly capacitors. 

Ceramic core inductors are widely used in RF and microwave circuits where stable inductance, reliable performance, and consistent manufacturability are important. They are commonly used in filtering, impedance matching, oscillators, and other RF signal conditioning applications across a wide range of commercial and industrial designs.

As demand continues to grow for cost-effective and reliable RF components, Knowles is expanding its ceramic core inductor portfolio to support standard commercial, industrial, telecom, and medical applications that require dependable and consistent RF performance.

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. 

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.