SIGNAL
INTEGRITY (SI)
IMPROVEMENT
YOUR TRUSTED PARTNER IN HIGH-SPEED PCB DESIGN AND OPTIMIZATION
Signal integrity issues are a common challenge in today’s high-speed electronic designs. Problems such as crosstalk, reflections, impedance mismatches and timing errors can cause unreliable performance, data corruption and electromagnetic interference (EMI) that delays product development and increases costs.
At RF Station, we offer expert Signal Integrity Improvement services to help you identify, analyze, and resolve critical signal problems across board-level and system-level designs. Whether you are facing failures during compliance testing or performance issues in real-time applications, our engineers are equipped to support you through simulation, measurement, and design optimization.
We utilize advanced tools such as SIMULIA CST Studio Suite for signal integrity simulation and Rohde & Schwarz Oscilloscope MXO 5 for real-time signal measurement and diagnostics. Using a combination of signal integrity simulation, TDR measurements and layout reviews, we deliver practical, real-world solutions tailored to your product and industry requirements. We don’t just fix symptoms. We help eliminate the root causes of signal degradation and EMI.
OUR SCOPE OF SERVICES
DESIGN ANALYSIS & OPTIMIZATION
Improving signal behavior across complex digital systems
- Pre-layout and post-layout signal integrity analysis
- Impedance matching and differential pair routing
Via, trace, and layer stack-up optimization - Eye diagram analysis and bit error rate (BER) improvement
SIMULATION & VALIDATION
Simulating signal performance and validating against real-world conditions
- SPICE and IBIS modeling
- S-parameter extraction and channel simulation
- Time Domain Reflectometry (TDR) testing
- Design for manufacturability (DFM) recommendations
TROUBLESHOOTING & CONSULTING
Targeted problem-solving to restore system performance
- Identification of signal degradation, ground bounce and power integrity issues
- Recommendations for PDN optimization, EMI filtering and shielding strategies
- On-site support and remote signal integrity consulting
- Hands-on validation using Rohde & Schwarz MXO 5 for accurate waveform capture and diagnostics
END-TO-END SIGNAL INTEGRITY SOLUTIONS
Beyond analysis and measurement, we offer a full ecosystem of solutions to help you design with confidence. From design-stage simulations to failure analysis and layout fixes, we support you in building products that are robust, compliant and optimized for speed and reliability.
MULTI-INDUSTRY APPLICATIONS
Board-level and system-level support for IoT, automotive, data center and AI hardware
We tailor our signal integrity approach to meet the demands of different industries, ensuring reliable high-speed performance across both simple boards and complex systems.
CORRELATED SIMULATION AND MEASUREMENT
Integration of simulation results with measurement data for full performance insight
By correlating CST Studio Suite simulations with real oscilloscope data, we help you validate designs with confidence and uncover issues that may not be visible in simulation alone.
ENGINEERING SUPPORT THROUGHOUT DEVELOPMENT
Collaborative engineering support from concept to compliance
Whether you’re in early schematic review or struggling with certification delays, we provide technical guidance at every stage to accelerate design cycles and minimize risk.
Frequently Asked Questions
Signal Integrity (SI) refers to the quality of electrical signals as they travel through a circuit. In today’s high-speed PCB designs, maintaining good signal integrity is crucial to prevent issues like crosstalk, reflections, impedance mismatches, and timing errors. These problems can degrade system performance, cause electromagnetic interference (EMI), and lead to costly development delays. RF Station specializes in optimizing signal integrity for reliable high-speed electronics.
You might have a Signal Integrity (SI) issue if you observe:
System Performance Degradation: Unreliable operation, intermittent errors, or unexpected crashes.
Timing Errors: Setup/hold violations, clock skew issues, or data synchronization problems.
Electromagnetic Interference (EMI): Your design is failing EMI/EMC compliance tests, or you’re experiencing unexpected noise or radiation.
Corrupted Data: High bit error rates (BER) in digital communications.
“Fuzzy” or Distorted Signals: When viewed on an oscilloscope, signals might show excessive overshoot/undershoot, ringing, reflections, or a closed “eye diagram.”
Thermal Issues: Localized hot spots due to excessive power dissipation caused by signal reflections or impedance mismatches.
Intermittent Functionality: The circuit works sometimes but not others, often related to environmental factors like temperature or voltage fluctuations. If you’re experiencing any of these symptoms, RF Station can help diagnose and resolve the underlying signal integrity problems using advanced simulation and measurement techniques.
Signal integrity problem is a sign that the trace impedance is not controlled properly. Checking the trace impedance and ground reference is the first thing to do.
Measuring signal integrity involves both simulation and real-world testing. At RF Station, we use industry-leading tools for precise measurement and validation:
Oscilloscopes: Like the Rohde & Schwarz MXO 5 Oscilloscope, used for high-resolution signal measurement, analyzing waveforms, jitter, and eye diagrams.
Time Domain Reflectometry (TDR): Employing TDR testing with instruments like the R&S MXO 5 to measure impedance discontinuities, locate reflections, and characterize transmission lines.
S-parameter Extraction: Using tools like CST Studio Suite to extract S-parameters for full-channel simulation, assessing insertion loss, return loss, and crosstalk in the frequency domain.
Eye Diagram Analysis: A visual tool to evaluate signal quality, jitter, and intersymbol interference (ISI), crucial for high-speed digital designs.
Bit Error Rate (BER) Testing: Quantifying the performance of digital signals by counting bit errors. These methods, combined with pre-layout and post-layout simulations, allow us to predict and validate signal behavior under real-world conditions.
OUR COMMITMENT TO EXCELLENCE
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