Spectro™ VNA

Today’s Vector Network Analyzers (VNAs) are powerful instruments. They are adept at measuring the performance of a variety of components and devices. However, the need to understand performance characteristics over a full range of frequency and time has placed greater demands on the performance of a VNA-based measurement system.

Constant Wave’s Spectro VNA software allows engineers to accurately characterize the performance of a range of discrete RF and microwave components or systems, and linear and non-linear devices. When used with popular high-performance Vector Network Analyzers, Constant Wave’s technology yields more accurate measurements and less uncertainty across frequency and time.

Joint Time-Frequency Analysis

Constant Wave’s unique spectrographic analysis presents the characteristics of device performance in both the time domain and frequency domain simultaneously. Unlike traditional VNA display methods, which can mask response characteristics across a range, Spectro VNA lets you select and observe the response of your device at any specific time or frequency.

Spectro VNA provides high-quality, spectrogram image generation through “High Definition” signal processing. You can visualize s-parameters in three dimensions – time, frequency and magnitude.

This image is the S11 response of a Beatty Standard in the joint time-frequency domain. A dynamic workspace, the spectrogram shows complex performance data across time (x-axis) and frequency (y-axis). The color indicates the magnitude of S11, with warmer colors indicating higher magnitude (red and orange) and cooler colors indicating lower magnitude (blue, purple, and black).

System Requirements

• Runs on Windows®-based PCs under XP, Vista or system 7.
• Works with S1P, S2P, S3P and S4P files.
• Compatible with Agilent® PNA-X, PNA and ENA; Anritsu® 37xxxD, and Rohde & Schwarz® ZVB.