Engineering Blog

Deep Dive into Impedance & Circuit Design

Professional technical articles, in-depth analysis, and practical guides for electronics engineers.

Latest Technical Articles

Updated regularly with the latest engineering insights

Design Practices

High-Frequency Design Principles: A Comprehensive Guide

Master essential high-frequency design principles including impedance matching, signal integrity, EMI control, and thermal management for RF and microwave circuits.

Hommer Zhao2024-01-15
Theory & Fundamentals

Advanced Measurement Techniques for RF and Microwave Circuits

Learn essential measurement techniques for RF and microwave circuits including S-parameter measurements, time-domain analysis, and noise characterization.

Hommer Zhao2024-02-01
Engineering Cases

Power Amplifier Design Case Study: 2.4 GHz 10W PA

Illustrative walkthrough of designing a 2.4 GHz 10W power amplifier including transistor selection, matching networks, thermal design, and a verification plan (example targets, not a measured build).

Hommer Zhao2024-02-15
Design Practices

PCB Impedance Matching Techniques: Complete Design Guide

Master PCB impedance matching techniques including L-network, Pi-network, T-network matching methods, Smith chart analysis, and practical implementation tips.

Hommer Zhao2024-03-01
Design Practices

DDR Memory Signal Integrity Design Guide

Complete DDR memory signal integrity design guide covering DDR3, DDR4, DDR5 routing, timing, termination strategies and PCB layout best practices.

Hommer Zhao2024-03-10
Design Practices

USB 3.0/3.1/3.2 High-Speed PCB Layout Guide

Complete USB SuperSpeed PCB layout guide covering differential pair routing, impedance control, ESD protection, and connector design for USB 3.x interfaces.

Hommer Zhao2024-03-15
Theory & Fundamentals

RF Filter Design Fundamentals: Complete Engineering Guide

Master RF filter design including low-pass, high-pass, band-pass filters using Butterworth, Chebyshev, and Elliptic response characteristics.

Hommer Zhao2024-03-20
Design Practices

EMC/EMI Design Best Practices for PCB Engineers

Complete EMC/EMI design guide covering grounding strategies, shielding techniques, filtering methods, and layout practices for electromagnetic compliance.

Hommer Zhao2024-03-25
Theory & Fundamentals

Transmission Line Theory for PCB Design

Master transmission line theory for high-speed PCB design including characteristic impedance, propagation delay, reflections, and termination strategies.

Hommer Zhao2024-04-01
Theory & Fundamentals

Crosstalk Analysis and Prevention in PCB Design

Comprehensive guide to crosstalk analysis covering NEXT, FEXT, coupling mechanisms, 3W rule, guard traces, and differential pair crosstalk mitigation.

Hommer Zhao2024-04-05
Design Practices

Power Integrity and PDN Design for High-Speed PCB

Complete power integrity guide covering PDN impedance, decoupling capacitor selection, power plane design, and target impedance calculations.

Hommer Zhao2024-04-10
Design Practices

High-Speed PCB Stack-up Design Guide

Complete PCB stack-up design guide covering layer count selection, impedance control, material selection, and common configurations for high-speed designs.

Hommer Zhao2024-04-15
Design Practices

Via Design for High-Frequency PCB Circuits

Master via design for high-frequency PCB including via types, impedance, stub effects, back-drilling, and differential pair via optimization techniques.

Hommer Zhao2024-04-20