Whitepapers

Applying a Very Wide-Bandwidth Millimeter-Wave Testbed to Power Amplifier DPD

5G designs that use wide-bandwidth digital modulation require new test technologies. Our latest 5G whitepaper presents a testbed for generating and analyzing millimeter-wave signals with 8 GHz bandwidth. We used it to generate V- and E-band signals and apply digital pre-distortion (DPD) algorithms, achieving impressive improvements in ACPR and EVM.

Basics of Power Amplifier and Front End Module Measurements

The power amplifier (PA) – as either a discrete component or part of an integrated front end module (FEM) – is one of the most integral RF integrated circuits (RFICs) in the modern radio. Download this white paper to learn the basics of testing RF PAs and FEMs via an interactive white paper with multiple how-to videos.

The Six Axes of Calibration

In a system or on a lab bench, proper instrument calibration reduces the chances of false test results. Not all calibrations are equal, and six key factors affect quality, usefulness and cost. In Six Axes of Calibration, we highlight the importance and value of each factor.

Hardware and Measurement Abstraction Layers

Hardware abstraction layers (HALs) and measurement abstraction layers (MALs) are some of the most effective design patterns to make test software as adaptable as the hardware. Rather than employing device-specific code modules in a test sequence, abstraction layers give you the ability to decouple measurement types and instrument-specific drivers from the test sequence. Learn how to drastically reduce development time by giving hardware and software engineers the ability to work in parallel.

Implementing a Flexible Testbed for 5G Waveform Generation and Analysis - Application Note

This whitepaper discusses some of the candidate waveforms, and then introduces a new flexible testbed for 5G waveform generation and analysis. This testbed combines software solutions with test equipment to investigate and to perform “what if” scenarios for new emerging 5g waveform applications. Ensure you have the flexibility needed for creation and analysis of prototype 5G signals.

Massive MIMO: Top 10 Research Topics in Need of Prototyping

This white paper features key, yet-to-be published Massive MIMO topics and how a testbed can be used to accelerate wireless research by enabling the validation of simulated results through rapid prototyping.

Understanding the Basics of MIMO Communication Technology

This paper from Southwest Antennas explores the basics of MIMO (multiple-in, multiple-out) communication technology, specifically focusing on the current generation of portable, tactical MIMO radios and the antenna technology that help make MIMO an attractive choice for today’s mobile wireless networks.

Learn How Easy MMIC Biasing Can Be

Leveraging single positive bias E-pHEMT MMICs for microwave signal chains has SWaP-C benefits over legacy dual bias D-pHEMT technology. Beyond eliminating bias sequencing circuitry, new PAs and LNAs powered by E-pHEMT even offer higher gain and linearity. Get the extra headroom you need by downloading this tech brief today.

Comparing Phase Noise Test Systems Sensitivity and Accuracy

Legacy and traditional phase noise test equipment are large, heavy, complex, fragile, and expensive. This paper illustrates measurement sensitivity equivalency to the most common system in the market with advantages in being smaller, lighter, more reliable & capable, at a fraction of the cost.

Implementing a Flexible Testbed for 5G Waveform Generation and Analysis

Explore 5G cellular system waveforms, algorithms and techniques with Keysight’s 5G testbed hardware and software elements providing the flexibility needed to address the inherent challenges of signal generation and analysis.