Electronic Warfare

Precision engineered components that give EW systems the power to sense, protect, and dominate the spectrum.

The Knowles Advantage

Knowles provides high-reliability RF filters, capacitors, and microwave components engineered for EW systems. Our wideband, low-loss filters and high-Q capacitors ensure superior signal integrity and resilience under extreme conditions, enabling agile frequency tuning and spectrum dominance where failure is not an option.

Knowles’ components can be found in the following applications:

  • Electronic Attack: Systems designed to disrupt or degrade enemy radar and communications through techniques like jamming.
  • Electronic Protection: Technologies that safeguard friendly forces and equipment from electromagnetic threats, including decoys and interference mitigation.
  • Electronic Warfare Support: Solutions that detect, identify, and locate signal sources for situational awareness, such as radar warning receivers.
  • Digital RF Memory (DRFM): Advanced systems that record and replay signals to confuse adversaries and enhance electronic countermeasure capabilities.

Enabling Electronic Warfare Superiority

High-Reliability RF Solutions for Electronic Warfare

Knowles drives electronic warfare superiority with precision RF and microwave components built for unmatched signal integrity, agility, and mission-critical reliability.

  • High-Reliability Capacitors: High-Q MLCCs and SLCs screened to space-level standards for extreme environments.
  • Adaptive RF Components: Switched RF filters, couplers, and hybrid couplers for rapid frequency agility. 
  • Jamming and Signal Protection: RF/microwave components enabling broadband jamming and secure communications.
  • Mission-Proven Expertise: MIL-SPEC, precision-engineered components backed by decades of defense experience. 

Educational Resources

Blogs
Catalogs
Whitepapers

Examining the Definition of “Wideband” Through the Lens of Electronic Warfare Systems

In complex radio frequency (RF) applications, “wideband” has varying definitions depending on both the application of interest and the portion of the RF circuit you’re focused on. Wideband can be used to describe the entire spectrum shown in Figure 1 or large portions of it.
View Article for Examining the Definition of “Wideband” Through the Lens of Electronic Warfare Systems
View Article for Examining the Definition of “Wideband” Through the Lens of Electronic Warfare Systems
The Role of Filters in Expanding Bandwidth for Electronic Warfare Receivers

The Role of Filters in Expanding Bandwidth for Electronic Warfare Receivers

Electronic warfare (EW) systems are an increasingly critical component of modern warfare. They seek to control and exploit the electromagnetic spectrum to gain an advantage over adversaries while preventing them from reciprocating.
View Article for The Role of Filters in Expanding Bandwidth for Electronic Warfare Receivers
View Article for The Role of Filters in Expanding Bandwidth for Electronic Warfare Receivers
MIL-PRF-55681-Qualified Capacitors

Knowles Achieves a Benchmark for Excellence: MIL-PRF-55681-Qualified Capacitors for Mission-Critical Defense Applications

When it comes to aerospace and defense applications, every single component plays a role in the success and longevity of the system. Capacitors are vital in flight control systems, radar systems, signal intelligence equipment and more.
View Article for Knowles Achieves a Benchmark for Excellence: MIL-PRF-55681-Qualified Capacitors for Mission-Critical Defense Applications
View Article for Knowles Achieves a Benchmark for Excellence: MIL-PRF-55681-Qualified Capacitors for Mission-Critical Defense Applications

RF/Microwave Products Catalog

Advanced RF and microwave components engineered for demanding environments.
View Resource for RF/Microwave Products Catalog
View Resource for RF/Microwave Products Catalog

SLC Capacitors Catalog

A comprehensive catalog of SLCs optimized for high‑reliability RF and power designs.
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View Resource for SLC Capacitors Catalog

High-Performance Filters in Millimeter Wave Applications

Learn about mmWave filter characteristics and technology.
View Resource for High-Performance Filters in Millimeter Wave Applications
View Resource for High-Performance Filters in Millimeter Wave Applications

Product Documentation

Switched Filter Banks

Switched filter banks enable compact, highly integrated designs while maintaining reliability across frequency bands.
View Resource for Switched Filter Banks
View Resource for Switched Filter Banks

RF Crossover

Knowles’ RF crossover simplifies board design by enabling DC-to-40GHz signal routing in a compact surface-mount component.
View Resource for RF Crossover
View Resource for RF Crossover

SWaP-C Optimized Parts for Radar Systems

Knowles RF and capacitor solutions help radar systems reduce SWaP-C while delivering high performance.
View Resource for SWaP-C Optimized Parts for Radar Systems
View Resource for SWaP-C Optimized Parts for Radar Systems

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