Radar

Mission-ready RF / Microwave components and capacitors

The Knowles Advantage

Knowles provides the high-performance building blocks that make next-generation radar possible. Our portfolio includes narrowband, high-rejection filters, high-Q capacitors for RF and power applications, and hybrid couplers—all optimized for extreme environments and screened to space-level reliability. Leveraging proprietary ceramic materials and advanced packaging, we deliver miniaturized solutions that enable agile filter banks, protect sensitive RF Analog-to-Digital Converters (ADCs), and support efficient GaN-based amplifiers to help radar systems achieve superior signal integrity and mission success.

Knowles’ components can be found in:

  • Transmit: Systems that send radar signals for target detection and tracking in mission-critical environments. 
  • Receive: Technologies that capture and process reflected radar signals to determine object location and characteristics.
  • Electronic Warfare Transmit/Receive: Applications that emit and intercept signals to disrupt or protect against adversary radar systems.
  • Critical Communications Transmit/Receive: Secure radar-enabled communication links for defense platforms and command networks.
  • Missile & Munitions Radar Functions: Radar-guided transmit/receive systems for precision targeting and detonation control.

Powering Next-Generation Radar Systems

Knowles enables next generation radar systems with high performance, SWaP-optimized components.

  • High-Performance RF Filters and Switch Filter Banks: Narrowband filtering with agile frequency selection.
  • SWaP Materials: High-Q, temperature-stable components for phased-array and fully digital radar systems.
  • Capacitors: High-reliability capacitors for power and RF performance support.
  • Digital Beamforming: Enables element-level arrays and enhanced detection. 
  • Comprehensive Portfolio for Aerospace & Defense: Integrated components for radar OEMs and Tier 1 suppliers.

Educational Resources

Blogs
Catalogs
Whitepapers

Understanding the 7 Critical RF Subsystems Inside the Modern Missile

Advanced RF filtering enables modern missiles to integrate multiple RF systems reliably within a compact platform.
View Article for Understanding the 7 Critical RF Subsystems Inside the Modern Missile
View Article for Understanding the 7 Critical RF Subsystems Inside the Modern Missile

Filters in Radar Receivers

In the fourth installment in our RF Components for Radar series we cover how RF filters help radar receivers isolate desired signals, reject interference, and enable high-performance digital beamforming in modern radar systems.
View Article for Filters in Radar Receivers
View Article for Filters in Radar Receivers

Switch Filter Banks for Agile RF Receiver Design in Radar

For the third installment in our RF Components for Radar series, miniaturized switch filter banks help modern radar systems adapt to changing missions and crowded RF environments while maintaining high performance.
View Article for Switch Filter Banks for Agile RF Receiver Design in Radar
View Article for Switch Filter Banks for Agile RF Receiver Design in Radar
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
Capacitor Support in Power Amplification for Radar Systems

Capacitor Support in Power Amplification for Radar Systems

In radar systems, power amplifiers serve an essential role in transmitting signals that probe the environment of interest. They boost signal strength and maintain its quality to achieve the intended range and resolution of the overall system.
View Article for Capacitor Support in Power Amplification for Radar Systems
View Article for Capacitor Support in Power Amplification for Radar Systems
Gain Equalizers in RF Receivers

Enhancing Radar Performance: The Role of Gain Equalizers in RF Receivers

Low-noise amplifiers (LNAs) in radio frequency (RF) receivers are designed to amplify low-amplitude signals (i.e., less than -100 dBm) from an antenna without decreasing their signal-to-noise ratio (SNR).
View Article for Enhancing Radar Performance: The Role of Gain Equalizers in RF Receivers
View Article for Enhancing Radar Performance: The Role of Gain Equalizers in RF Receivers

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.
View Resource for SLC Capacitors Catalog
View Resource for SLC Capacitors Catalog

RF Components for Radar Systems

Review radar’s essential components and explore how RF systems work together to ensure precision and reliability.
View Resource for RF Components for Radar Systems
View Resource for RF Components for Radar Systems

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

Understanding the Nuances of Space-Level Qualification and Screening of Filters

Selecting high-quality, high-reliability electronic components is a necessity for meeting the rigorous requirements of space...
View Resource for Understanding the Nuances of Space-Level Qualification and Screening of Filters
View Resource for Understanding the Nuances of Space-Level Qualification and Screening of Filters

Product Documentation

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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