Knowles Articles

81. 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.

82. 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. 

83. 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.

84. 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. 

85. 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. 

86. 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.

87. 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.

88. 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.

89. SLCs Vs. MLCCs: Which Capacitor Type Is Right For My Application? 2/9/2022

    In general, SLCs are well-suited for high-frequency, low-voltage RF and microwave applications, while MLCCs can be used for all types of high-capacitance, high-voltage applications within a much more limited frequency range. 

90. Bring Us Your Toughest Challenges 2/4/2022

    At Knowles Precision Devices, we purposely avoid commodity components. What we thrive on is doing the hard things. We handle the specialty components that go in systems that cannot fail and that operate at extremely high voltages, temperatures, or frequencies.