Test and Measurement

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A new measurement option for the R&S FSW signal and spectrum analyzer from Rohde & Schwarz allows developers to optimize the EMI performance of their products as early as in the design phase.

Rohde & Schwarz launched the R&S SMW200A high-end vector signal generator that combines maximum flexibility, outstanding performance and intuitive operation, making it the ideal tool for generating complex, digitally modulated signals. 

Computer Simulation Technology AG has announced the incorporation of its office in Bengaluru, India.

The Taiwan National Chiao Tung University (NCTU) has selected Anite’s Propsim radio channel emulator for its MIMO OTA testing system.

Lime Microsystems has signed a deal with Interlligent RF & MW Solutions to use the company's latest test and measurement technology in the development of its FPRF transceiver ICs.

SAGE Millimeter's model SSP-24303-42-D1 is a low cost, production ready K-Band FMCW ranging and directional sensor module. The center frequency of the module is set at 24.125 GHz with +/-150 MHz frequency modulation bandwidth and +3 dBm nominal output power. The sensor operates from a single +5 .0 Vdc power supplier and typically draws 250-mA current and requires 0 to +15 volts voltage swing for electrical tuning.

Rosenberger has started operations in the company’s new EMC laboratory in Fridolfing, Germany. Centrepiece of the new lab is an anechoic chamber for EMI emission measurements at component level.

Rohde & Schwarz has introduced a fading simulation module for its R&S CMW500 wideband radio communication tester.

Elektrobit Corp. (EB) and Anite plc have signed an agreement under the terms of which EB agrees to sell its Test Tools product business to Anite.

Teseq has designed a new coupling/decoupling network (CDN) for surge testing on unshielded symmetrical high speed telecommunication lines including Ethernet.

To amplify weak signals received by the antenna in communication systems, low noise amplifiers (LNAs) are deployed. LNAs are used in various applications such as GPS receivers, wireless data systems, satellite communications, cellular handsets, radio systems, etc.

RF transmitters are an essential part of modern communications. Designed and assembled from core RF components, RF transmitters have many different forms and applications. We often think of RF transmitters in wireless communications, but the concept applies equally to wired applications such as cable television.

In this guide, the concept of calibration is presented and discussed in detail. Specific topics to be covered include how to configure the VNA for calibration, types of calibration and calibration kits. A minimal amount of calibration mathematics and theory will also be covered.

The airwaves are becoming increasingly crowded as demand for RF spectrum continues to grow. As a result, every type of wireless communication system faces a complex and unpredictable signal environment.

Cable and antenna measurements are often required to verify and troubleshoot the electrical performance of RF and microwave transmission systems and antennas. Measurements are often made along the coaxial cable connecting a transmitter to its antenna and/or between an antenna and its receiver.

This article ties together the fundamenal definition of noise figure, equation-based analysis of cascade blocks involving mixers, and typical lab techniques for measuring noise figure. In this Part 1 we show how the cascaded noise figure equation is modified by the presence of one or mixers and we derive the applicable equations for a number of popular downconversion architectures. We continue this discussion in Part 2 of this series where we describe the Y-factor method of noise-figure measurement. In Part 2 we focus on the case of a mixer as the device under test in order to identify appropriate measurement methods for mixer noise figures that can be validly applied using the cascade equations derived in Part 1.

The new application note “Solutions for Design and Test of 8x8 LTE MIMO” is designed to help you get insight into solving tough measurement problems in a unique way for both the design and manufacturing environments by explaining how to combine simulation with test solutions to realize high-performance 8x8 MIMO designs.

This field brief will discuss phase-matching cables, S-parameter definitions as they apply to cable characterization and other cable parameters such as Phase Shift and Group Delay. Advanced Time-Domain measurements will also be presented as enhancements to the well-known Distance-to-Fault (DTF) techniques. In addition, diagnostic tools like the Smith Chart will be briefly described.

The primary goal of the MIMO OTA measurement system is to be able to compare Multi-antenna/MIMO devices and algorithms based on their throughput performances when tested against spatial channel models. All critical parts of the mobile terminal design (antennas, RF front-end, baseband processing) are tested in an end-to-end configuration. This document aims to present all the most relevant technical features of the MVG StarMIMO system relative to the MIMO OTA measurement technique with anechoic chambers.

The purpose of this application note is to review a portion of the wireless technology and focus on a line of amplifiers that has been optimized for wireless test use. This analysis can also be applicable to some additional portion of wireless technology.