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White Papers

ARTICLES

Head to Head: NI PXIe-5665 Versus Traditional Boxed Instruments

NIThis paper discusses the setup details for the demo shown in this video Head to Head: NI 5665 vs. Traditional Boxed Instruments. The demo compares the performance and speed of the NI PXIe-5665 with the Agilent PXA. Rather than comparing the datasheet specifications of both instruments, this video compares the two instruments while performing real- world test scenarios.


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50V LDMOS

An ideal RF Power Technology for ISM, Broadcast and Commercial Aerospace Applications

RF laterally diffused MOS (LDMOS) is currently the dominant device technology used in high-power RF power amplifier (PA) applications for frequencies ranging from 1 MHz to greater than 3.5 GHz. This paper will include device and design considerations that specifically target enhancing ruggedness performance. The features of the products using this platform will also be presented.


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RFID objects monitoring in space bounded by metallic walls.

Considered problem is the reading of multiple RFID tags in the region of space, which is bounded by metal walls and has resonant radio-engineering properties. Obtained results show that it is possible to get reliable automated monitoring of items with tags by forming of a local electromagnetic field (EMF) with the help of slow-wave structures (SWS).
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DOCUMENTS AND FILES

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.

Numerical Methods in FEKO

Altair’s FEKO offers a wide spectrum of numerical methods and hybridizations, each suitable to a specific range of applications. Hybridization of numerical methods allows large and complex electromagnetic problems to be solved, thereby allowing solutions to problems that would be intractable with any individual method. This technical paper provides an overview of the methods.

Simulation of Beamforming by Massive MIMO Antennas in Dense Urban Environments

This paper presents a new predictive capability for simulating massive MIMO antennas and beamforming in dense urban propagation environments.  Wireless InSite's MIMO capability is used to show predictions for SINR at specific device locations and the actual physical beams, including unintentional distortions caused by pilot contamination.

Spectrum Analysis Basics

Engineering is all about connecting ideas and solving problems, and every tool you master enhances your ability to contribute. Explore Keysight Signal Analysis Basics and build a stronger foundation that will help you deliver your next breakthrough.

Using Enhanced Load-Pull Measurements for the Design of Base Station Power Amplifiers

Load-pull simulation is a very simple yet powerful concept in which the load or source impedance presented to an active device is swept and its performance is measured. Performance contours are then plotted on a Smith chart, which shows the designer how changing impedances impact the device’s performance.

PCB Substrates: Matching your design to the right material and rapid prototyping process

To stay ahead of the competition RF/Microwave, wireless, IoT, and other microelectronics, engineers and manufacturing teams must continuously evaluate the best new methods to produce efficient circuits. While the list of potential substrate materials is long, we’ll be focusing on a handful of top choices, each popular for different reasons.

FEKO for Rotorcraft Electromagnetics

The comprehensive 3D electromagnetic simulation software from Altair, FEKO, is well-suited for rotorcraft electromagnetic applications including antenna placement, rotor blade modulation, co-site interference, electromagnetic interference (EMI), electromagnetic compatibility (EMC) and radar cross section (RCS).  This paper addresses the suitability of these solvers in FEKO for the rotorcraft electromagnetic applications, also showing examples.

Product Development Flow for 5G/LTE Envelope Tracking Power Amplifiers

This white paper examines the use of envelop tracking, digital pre-distortion and impedance matching via load-pull to improve the efficiency and linearity performance of RF power amplifliers targeting 4G and 5G applications.

Overcoming RF & Microwave Interference Challenges in the Field Using Real-time Spectrum Analysis (RTSA)

Learn practical strategies to overcome RF and microwave interference challenges in the field using real-time spectrum analysis (RTSA). Read about the different types of interference encountered in both commercial and aerospace defense (A/D) wireless communication networks. Uncover the drawbacks associated with traditional interference analysis and get an in-depth introduction to RTSA. Plus, see why this type of analysis is required to troubleshoot interference in today’s networks with bursty and elusive signals.

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