How to Characterize Wideband Transmitter Linearity

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Vector Transceivers
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Vector Transceivers
+ Vector Transceivers

Characterize Wideband Linearity and Distortion

Wideband transmitter designs push power amplifiers and RF chains closer to nonlinear operation, making it harder to preserve signal quality as bandwidth and output power increase. Multiband vector transceiver solutions provide repeatable wideband RF measurements to characterize distortion, evaluate error vector magnitude (EVM), adjacent channel leakage ratio (ACLR), and spectral regrowth across development, validation, and manufacturing.

A compact PCI extensions for Instrumentation (PXI)-based architecture supports non-signaling frequency range 1 (FR1) and high-intermediate frequency (IF) measurements in two- or four-channel configurations with up to 1.2 GHz bandwidth and timed multiple-input multiple-output (MIMO). Engineers can sweep output power, identify the linear operating range, observe distortion near compression, and verify performance under wideband conditions.

Wideband Linearity Characterization Solution

Multiband Vector Transceiver solutions support wideband transmitter linearity and distortion characterization with a compact, scalable MIMO test approach for high-confidence RF validation. By focusing on EVM, ACLR, and distortion-related behavior such as spectral regrowth, engineers can evaluate how transmitter performance changes across power levels and bandwidth conditions. A common software environment helps streamline correlation from development to system validation, while flexible multichannel architecture supports efficient characterization of complex radio designs. This approach helps teams accelerate troubleshooting, improve confidence in measurement results, and reduce the effort required to validate wideband transmitter performance before release.
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See Block Diagram of Wideband Linearity Characterization Solution

How to Characterize Wideband Transmitter Linearity Block Diagram

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