Application Note AN-001
Noise Figure Measurement Using the Y-Factor Method
Practical Guide Using Ceyear 4052 / 4082 Signal & Spectrum Analyzers
Modern RF and microwave receivers are designed to detect extremely weak signals while introducing as little additional noise as possible. The ability of a receiver or RF component to preserve the signal-to-noise ratio is commonly characterized by its Noise Figure (NF).
Noise Figure is one of the most important performance parameters for low-noise amplifiers (LNAs), receiver front ends, frequency converters, satellite receivers, radar systems, and wireless communication equipment. A lower Noise Figure improves receiver sensitivity and increases the probability of detecting weak signals.
The Y-Factor method is the industry-standard technique for Noise Figure measurements. It uses a calibrated noise source that generates two precisely defined noise levels. By comparing the DUT output noise in these two operating states, the analyzer automatically calculates both the Noise Figure and the Gain of the device under test.
The Ceyear 4052 and Ceyear 4082 Signal & Spectrum Analyzers include an integrated Noise Figure Measurement application that automates the complete measurement process. After the calibrated ENR data has been loaded and the measurement system has been calibrated, the analyzer controls the measurement sequence and displays the Noise Figure and Gain over the selected frequency range.
This application note provides a practical guide for performing Noise Figure measurements using the Ceyear 4052/4082 analyzers. The procedure follows the workflow demonstrated in the accompanying training video and is intended to help users quickly perform accurate and repeatable measurements.
Where to Buy:
🔵 Ceyear 4052 and Ceyear 4082 Signal & Spectrum Analyzers are now available for order from the official Ceyear distributor in Ukraine – SEA Company (tmm@sea.com.ua).
