Keysight Instrument Can Make Accurate Measurements in the MmWave Regime
In 1935, a thought experiment was devised by Erwin Schrödinger about whether the act of observing an event affects the state of the subject (in this case, a cat). More broadly, this is a phenomenon known in physics as the Observer Effect. Every seasoned engineer knows not to use a regular DMM to measure the quiescent current of a low power device. The burden voltage affects the circuit sufficiently such that the measurements are no longer accurate. All electronic instruments are affected by this in varying degrees but in the world of mmWave (5GNR, Ka, V-band, etc.) this effect is greatly magnified by a multitude of factors. Why does mmWave pose such challenges? What can be done to mitigate the problems? Let’s explore these ideas and more.
Making accurate measurements in the mmWave regime starts with selecting the right Keysight instrument for the application. The next challenge is to ensure that the internal settings of the instrument and the test network are optimized for (a) path loss, (b) wideband noise, and (c) frequency response. Some of these factors can be corrected by configuring the instrument with a carefully selected attenuation, amplification, and preselector. If all this is beginning to sound hard, Keysight Signal Analyzer makes it easy by offering the “Optimize EVM” function, which intelligently automates this process.
Whether it’s through a cable or free space, path loss is the bane of RF engineers. In both cases, the loss grows exponentially with the carrier frequency which partly explains why making measurements at mmWave frequency can be difficult. Keysight offers many solutions to mitigate path loss, wideband noise, and frequency response so that you can focus on testing your product.
- +1 Like
- Add to Favorites
Recommend
- Signal Analysis in 5G NR Base Station Transmitters: Part 4
- mmWave Signal Analysis Test Challenges - Boldly Go Where Nobody‘s Gone Before
- Simplify Phase Noise Test up to 54GHz with the SSA-X Signal Source Analyzer
- Keysight Expands Signal Source Analyzer Portfolio for Wireless, Radar, and High-Speed Digital Applications
- Kinghelm KH-XH-10A-Z Connector: Rated for 3A, Can Ensure Stable and Reliable Transmission of Electrical Signals
- Signal Analysis in 5G NR Base Station Transmitters: Part 2
- Two Domains Are Better Than One: Oscilloscopes and Signal Analyzers
- Optimize Signal Quality In 5G Private Network Base Stations
This document is provided by Sekorm Platform for VIP exclusive service. The copyright is owned by Sekorm. Without authorization, any medias, websites or individual are not allowed to reprint. When authorizing the reprint, the link of www.sekorm.com must be indicated.
Integrated Circuits
Discrete Components
Connectors & Structural Components
Assembly UnitModules & Accessories
Power Supplies & Power Modules
Electronic Materials
Instrumentation & Test Kit
Electrical Tools & Materials
Mechatronics
Processing & Customization
