Modern communication devices utilize wider bandwidths, multiple input/output technology, and higher-order orthogonal frequency-division multiplexing (OFDM) modulation. As a result, wireless components consume more power. One of the most power-hungry nonlinear components in a mobile terminal is the power amplifier (PA). To minimize its power consumption and reduce nonlinearity, technologies such as CFR, ET, or DPD are often employed. Because the new N7614B software incorporates these technologies, it provides engineers with a proven, easy-to-use solution for their PA testing.
The N7614B software is compatible with Keysight's MXG, EXG, and ESG general-purpose vector signal generators; PXA, MXA, and EXA signal analyzers; and 33522B and 33622A arbitrary waveform (AWG) generators. Therefore, the N7614B is particularly cost-effective for Keysight customers, who can now perform PA testing directly on the hardware, rather than having to purchase new software. The N7614B software also supports API programming, so it can be easily integrated into a custom PA test system.
The N7614B software features a flexible I/Q waveform interface that can handle waveforms generated in Signal Studio or customer-supplied MATLAB waveforms. Engineers can input these waveforms into the PA system during testing and measurements. Based on the results, the PA system can then be adjusted to improve output signal quality using CFR, ET, and DPD technologies. If needed, Keysight's signal generator and analyzer can simplify this process to ensure optimal PA performance.
“Power amplifier (PA) testing is a critical step during the R&D and manufacturing phases of mobile devices; a step whose difficulty has increased with the introduction of technologies designed to improve power efficiency, such as ET,” explains Kurt Philipsen, Director of Application Marketing for Keysight’s Microwave and Communications Division. “While most PA testing solutions require engineers to acquire new test equipment and create their own RF test signals, Keysight’s new N7614B software allows them to leverage existing equipment. The result is a flexible, cost-effective, and chip vendor-independent testing solution for CFR, ET, and DPD power amplifiers.”.
