White Papers

Coilcraft

When to Use S-parameters for High-frequency Circuit Simulations

Understanding the meaning of S-parameters, how they are measured, and their limitations can lead to more meaningful simulations of RF- and microwave-frequency inductors, chokes, wideband RF transformers, and high-speed common mode chokes. This document describes how S-parameters are generated and how to best apply them to your simulations.


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Conducted Emissions in DC/DC Converters - Simulation Versus Measurement

Simulation can be a big time-saver when designing EMI filters for DC/DC converters. Power supply control chip vendors offer various filter design tools that provide reasonable design choices for filter simulation before any hardware prototype is available. However, simulated results can differ significantly for different tools if simulated models are not accurate or do not cover all the relevant components.


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The Importance of Low Phase Noise and How to Measure It

Phase noise is caused by an RF waveform’s unintentional phase modulation, degrading the overall fidelity of a signal. In this white paper, learn phase noise fundamentals, how phase noise impacts the performance of radar and digital communications systems, and the limitations and advantages of two different phase noise measurement methods.


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MiniCircuits

Optimizing High-Rejection LTCC Filter Performance in Co-Planar Waveguide Implementations

This paper explores the implementation of Mini-Circuits’ BFHK-series high-rejection LTCC filters in a coplanar waveguide (CPW) environment using a novel interposer board and related effects on filter rejection. Real test data from a leading customer’s evaluation of these filters in a channelized housing is presented demonstrating comparable rejection performance to that of stripline implementations in the range of 70 to 90 dB.


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RF Applications Guide: 9 Ways to Transform your Antenna Design with 3D-Printed Dielectrics

Radiofrequency engineers and microwave/mmWave antenna designers are often limited by the strict constraints of traditional antenna manufacturing methods, leading to compromised performance, reduced innovation, or ballooning costs. Fortify’s innovative additive manufacturing technology has unlocked possibilities, design freedoms, and more powerful antenna systems across a wide range of antenna applications. This RF applications guide presents nine ways that 3D-printed dielectrics will transform and enhance your antenna design.


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