Peter Matthews

Peter Matthews
Peter Matthews is Director of Technical Marketing at Knowles Precision Devices. As a division of Knowles Corporation, Knowles Precision Devices (KPD) focuses on production of a wide variety of highly engineered capacitors and microwave to millimeter-wave components for use in critical applications in military, medical, electric vehicle, and 5G market segments. Peter has over 20 years of experience in technology sales, marketing, and product management.

Recent Posts

How High-Q Ceramic Filters Help Engineers Overcome GNSS Jamming

Posted by Peter Matthews on Jun 18, 2025 8:00:00 AM

As engineers embed receivers for Global Navigation Satellite Systems (GNSS), like GPS and Galileo, into systems ranging from autonomous vehicles to precision agriculture, the RF environment is becoming more crowded, and it’s more difficult to maintain signal integrity.  

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Topics: RF and Microwave, Military and Aerospace, Filtering

Ceramic vs. Film: Choosing the Right Technology for Your Safety Capacitors

Posted by Peter Matthews on Jun 11, 2025 8:15:00 AM

As discussed in the first post in our safety capacitor series, safety capacitors are designed to help safeguard users and equipment from electrical hazards, even in the event of failure. When selecting a safety capacitor for your application, you typically have two choices in dielectric material – ceramic and film. To select the right technology for your application, it is important to both understand your requirements and the differences between what each material has to offer.

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Topics: Capacitor

Evolving Motor Controller Design for Modern Robotics and Complex Automation Tasks

Posted by Peter Matthews on May 28, 2025 8:15:00 AM

Pharmaceutical manufacturing is becoming increasingly reliant on robotics and automation. From precise dispensing and high-speed sorting to kit assembly and sterile packaging, today’s automation tasks demand advanced motor and drive technology to keep pace with complex, high-reliability environments. 

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Topics: Capacitor

Supercapacitors For Fail-Safe Control in Industrial Systems

Posted by Peter Matthews on May 21, 2025 8:15:00 AM

Unplanned power interruptions and shutdowns pose serious risks for industrial facilities. Even a few seconds of lost control can result in equipment damage, safety hazards, or production losses. Fail-safe systems are among the key risk mitigation techniques used in high-stakes industrial environments.  

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Topics: Capacitor

Safety Capacitor Classes

Posted by Peter Matthews on May 14, 2025 8:00:00 AM

In our prior blog, What Are Safety Capacitors, we provided an overview safety capacitor functionality and how these passive components play a crucial role filtering EMI in a circuit. Now, we will dive deeper into the functions of safety capacitors and how to select the capacitor that will meet all your needs by exploring the different classes and subclasses for these components. 

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Topics: Capacitor

What Are Safety Capacitors?

Posted by Peter Matthews on Apr 23, 2025 8:15:00 AM

Safety capacitors are passive electronic components designed to mitigate the effects of transient voltages and interference in electrical circuits. Safety capacitors are designed to help safeguard users and equipment from electrical hazards, even in the event of failure. Since these components are commonly used in AC line filtering and power supply circuits where failure could lead to electric shock, fire, or equipment damage, safety capacitors are subject to stringent testing and certification requirements. 

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Topics: Capacitor

Understanding RF Inductors via Their Key Characteristics and Applications

Posted by Peter Matthews on Apr 16, 2025 8:15:00 AM

Inductors are a fundamental component in electronic circuits, but not all inductors perform equally across different frequency ranges. At high frequencies, standard power inductors suffer from increased losses, reduced efficiency, and undesirable parasitic effects. RF inductors, specifically designed for radio frequency and microwave applications, address these challenges by minimizing resistive losses, optimizing self-resonant frequency, and maintaining signal integrity.

Here, we examine the distinguishing characteristics of RF inductors, highlighting how they differ from other inductor types and why they are essential in high-frequency applications.

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Topics: Capacitor, Medical

What Kind of Capacitors Does Knowles Make?

Posted by Peter Matthews on Apr 2, 2025 8:00:00 AM

Knowles makes a wide range of capacitors. To really understand the breadth of our offerings, it helps to look at the scale of energy storage they offer. From tiny bypass capacitors in medical implants to massive energy-storage banks used in fusion experiments, our products span an incredible range. 

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How Pulse Forming Networks Shape High Energy Pulses

Posted by Peter Matthews on Mar 26, 2025 8:15:00 AM

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. 

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Topics: Medical

The Essential Relationship Between Two Key RF Components

Posted by Peter Matthews on Mar 19, 2025 8:15:00 AM

Capacitors and inductors are two closely related components that frequently work together in RF circuit design. While both store energy, they do so in distinct ways. Capacitors store energy in an electric field and help regulate voltage changes, whereas inductors store energy in a magnetic field and resist changes in current.  

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Insights Into Precision Passive Devices

Knowles Precision Devices is a premier global source for Capacitors, RF Filters, EMI Filters, Resonators, non-magnetic components and advanced dielectric materials. An umbrella for the brands of Compex, DLI, Johanson MFG, Novacap, Syfer and Voltronics, Knowles Precision Devices serves a variety of markets including military, aerospace/avionics, medical equipment, implantable devices, EMI and connector filtering, oil exploration, instrumentation, industrial electronics, automotive, telecoms and data networks.

This Blog will provide insights into:

  • Filters for 5G and mmWave
  • Capacitors for High Voltage
  • Capacitors for High Reliability

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