Balancing Performance with Compact Quadrature Hybrid Couplers by Dave Thibado via Knowles Precision Devices Quadrature hybrid couplers are basic building blocks for many RF and microwave systems. For these couplers, the input splits into two output signals, of equal magnitude, with a 90 degree phase difference. Quadrature hybrid couplers provide improved input match for unbalanced loads....

A Guide to Snubber Capacitor Selection for SiC-Based Switching Converters Today, most converter circuits now include semiconductors and switches made of silicon carbide (SiC) instead of plain old silicon (Si). This is because when silicon and carbon are combined, the resulting material, SiC, has excellent mechanical, chemical, and thermal properties. Therefore, SiC-based converters can handle...

Wilkinson Power Dividers and Feed Networks – A Brief Overview By Greg Alton via Knowles Precision Devices  The Wilkinson Power Divider, designed by Ernest Wilkinson in the 1960s, uses quarter wave transformers to split an input signal into two equal phase output signals. Since the design is reciprocal, Wilkinson Power Dividers can also be used...

Power Divider Basics By Peter Matthews via Knowles Precision Devices  Radio frequency (RF) power dividers are designed to split an incoming signal into multiple outputs such that there’s a portion of the original signal’s power in each output. Given their critical function, power dividers play a particularly important role in antenna systems, telecommunications, and signal...

Knowles Capacitance Range Extension: Class I Ceramic C0G Series Knowles has extended the range and performance of the Class I Ceramic C0G Series Capacitors to better support LLC type DC/DC converters in demanding environments. With a maximum capacitance of 44nF/1kV and 66nF/630V in a compact chip size of 1210, the extended series is well suited...

FHC10293 90 Degree Hybrid Coupler by Knowles The FHC10293 from Knowles is a Quadrature Hybrid Coupler that operates from 6 to 18 GHz. This 3 dB coupler provides an isolation of 15 dB and has an insertion loss of less than 1 dB. It can handle a CW input power of 50 W and has...

Knowles to Showcase its Innovative Product Line of RF & Microwave Components at EuMW 2025 Knowles Precision Devices, a leading provider of high-performance RF and microwave solutions, will be showcasing its latest lineup of advanced components at European Microwave Week (EuMW) 2025. They include 3-way and 6-way power dividers, high-frequency RF crossovers, switch filter banks, gain...

Knowles SMD Multilayer Ceramic Capacitors Surface Mount MLCCs (Multilayer Ceramic Capacitors) from Knowles Precision Devices are designed for some of the world’s most demanding applications. The markets Knowles serves include medical implantable devices and medical equipment, military, aerospace/avionics, EMI and connector filtering, oil exploration, instrumentation, industrial electronics, optical networks, telecom, and automotive. From standard voltage...

Knowles Introduces Non-Magnetic Low Loss MLCCs for Medical Imaging and RF Applications Knowles, a market leader and global provider of high-performance capacitors and RF products, has launched its FM2 Range of Non-Magnetic X7R Low Loss Multilayer Ceramic Capacitors (MLCCs). The X7R Low Loss range of capacitors is engineered to provide lower equivalent series resistance (ESR)/higher Q...