Knowles Articles
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Filter Basics Part 3: Five Key Filter Specifications To Understand
5/3/2022
In part 3 of this series, Knowles aims to help simplify filter selection by providing an overview and reference point for five of the most commonly discussed filter technology specifications.
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Filter Basics Part 4: Key Filter Types And Technologies
4/28/2022
In this new Filter Basics Series, Knowles takes a step back from its usual comprehensive filter discussions to cover background information on how filters do what they do. In part four of this series, Knowles provides overviews of the main filter types and key filter technologies available today.
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Impedance: Examining The Opposition
4/25/2022
Impedance, measured in ohms, extends the concept of “opposition” to alternating current (AC) applications and plays an important role in capacitor selection.
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PCB Design Considerations For High-Performance Filtering In mmWave
4/25/2022
Filters for devices operating in the mmWave range will not function optimally if a PCB is not configured appropriately. For this reason, RF design engineers need to make critical PCB design decisions that range from selecting the right materials to developing a board configuration.
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Capacitors In Space: Specifications For High Reliability
4/13/2022
Every single system contributes to the success of a space project, so they must maintain high quality and safety standards for long durations. Building and maintaining high-reliability applications is an expensive endeavor, especially if the team needs to send parts back to the ground for repair.
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Planar Filter Technology For mmWave Applications
3/21/2022
Planar filters are manufactured by creating flat 2D resonators with patterns of strip elements on a dielectric substrate. Depending on the filter topology, planar filters can offer a high quality factor (Q) and a reasonable approach to achieving performance in a small footprint.
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Filter Basics Series Part 2: Designing Basic Filter Circuits
3/18/2022
In part two of this series, Knowles covers how RF designers can use the different frequency dependencies of capacitors and inductors to manipulate impedance and create various filter responses.
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It’s Still Possible To Drive EV Innovation And Minimize Lead Times
3/14/2022
EV manufacturers are rapidly innovating internal and external charging technologies to ease consumer fears over range anxiety and charging times. These developing technologies will increase the efficiency of both on-board and external power conversion and management devices.
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Surface-Mount Vs. Through-Hole Technology
3/14/2022
There are two main mounting schemes for placing components on a printed circuit board (PCB): through-hole technology (THT) and surface-mount technology (SMT). Given its popularity over the last few decades, it’s no surprise that designers default to SMT, but there are advantages to both schemes that are worth exploring, especially for high-reliability application designs.
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Filter Basics Series Part 1: Resistance, Capacitance, Inductance, And Impedance
2/18/2022
To kick off this series, Knowles Precision Devices breaks down the basic properties, impacting capacitor and inductor performance including resistance, capacitance, inductance, and impedance.