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Testing low-noise amplifiers (LNAs) with modulated signals for 5G New Radio (NR) standards compliance requires noise figure and linearity measurements using wideband modulated, calibrated signals. A single test bed, including a vector network analyzer (VNA), vector signal generator (VSG), and multiple instrument software applications, enables a broad range of measurements, including noise figure, adjacent channel power ratio (ACPR), and residual error vector magnitude (EVM) while simplifying test setup.
The VSG supplies the required modulated signal. The VNA provides the necessary level of measurement precision by applying vector-error correction and advanced calibration methods. VNA software applications enable noise figure measurements using the cold source method, as well as adjacent channel power ratio (ACPR) and low residual error vector magnitude (EVM) measurements without changing the configuration of the test setup.
How To Test Low-Noise Amplifiers
Enables high-accuracy measurements of amplifier noise figure and noise power utilizing Keysight’s unique vector-source-correction technique
Network Analyzer Series |
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How To Test Low-Noise Amplifiers
N5182B MXG X-Series RF vector high performance signal generators are fine-tuned to be your “golden transmitter” in R&D with 9 kHz to 6 GHz frequency coverage. Simulate real-world signals with real-time capabilities with Signal Studio software.
Frequency | 9 kHz to 6 GHz, 7.2 GHz with N5182BX07 |
Output Power @1 GHz | +24 dBm |
Frequency Switching (Typical) | 800 µs |
Harmonics @1 GHz | -35 dBc |
Phase Noise @1 GHz (20 kHz offset) | -146 dBc/Hz (10 kHz offset) |
Type |
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How To Test Low-Noise Amplifiers
The S960707B modulation distortion software application provides nonlinear DUT behavior tests (EVM, NPR, and ACPR) under modulated stimulus conditions.
Network Analyzer Series |
How To Test Low-Noise Amplifiers
Characterize components up to 50% faster
Number of Built-In Ports |
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Maximum Frequency | 44 GHz |
Number of Internal Sources |
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VNA Series | ENA |
VNA Type | Benchtop |
Additional resources for LNA testing
Measuring frequency converter phase noise requires the capture of many parameters, including gain, phase, delay, intermodulation distortion, and noise figure. Learn how to set up a test to characterize frequency converters using a combination of signal generation and analysis tools.
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Characterizing low-loss materials for 5G requires understanding their electromagnetic properties. Learn how to determine permittivity, permeability, and other characteristics using a network analyzer and material measurement software.
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Characterizing components at new sub-THz frequencies for 6G requires both S-parameter and wideband modulated measurements. Learn how to use a vector network analyzer and arbitrary waveform generator to make these measurements without introducing error.
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