Test and Measurement Channel

Subscribe

Mobile operators, OEMs, chipset and infrastructure vendors are challenged as never before with the deployment of new network, device and service technologies. The industry-accepted testing paradigm is under severe stress to accommodate an explosion of new test cases without corresponding increases in budget or time to market. At CTIA 2013, Azimuth is pleased to unveil solutions for a new testing paradigm.

Oven Industries is now offering a high powered temperature controller mounted on a heat sink that creates a seamless transition between heating and cooling devices, as it serves as the commander of thermoelectric modules. With a bi-directional or unidirectional H-bridge configuration, the controller has many benefits.

Eastern OptX, specialists in fiber optic delay lines for RF and microwave test applications, introduced its new Series 5000 Doppler radar target generators today.

Nujira Ltd., the world’s leader in Envelope Tracking (ET) technology, has signed a partnership agreement with LTX-Credence Corp., a global provider of market focused, cost-optimized semiconductor test solutions. The agreement will see Nujira use the LTX-Credence Diamond10 tester for testing of its Coolteq.L High Accuracy Tracking ET modulator ICs ahead of full volume production later this year.

The R&S SMW200A vector signal generator is the ideal tool for generating the high-quality, complex digitally modulated signals required for the development and verification of today's communications systems.

Anritsu Co. announces its MS2720T Spectrum Master™ handheld spectrum analyzer with option 709 (frequency coverage from 9 kHz to 9 GHz) has been self-certified by Anritsu to comply with the National Radio Systems Committee (NRSE) requirements for conducting AM and FM broadcast measurements. The certification verifies that the MS2720T is capable of conducting AM and FM broadcast-proofing measurements, and gives field engineers and technicians greater confidence that their measurements are in compliance.

Technical Education Training Webcast Series

FieldFox Handheld Analyzers Education Series

Technical Education Training Webinar Series

Innovations in Network Analysis Webcast Series

FieldFox Handheld Analyzers Education Series

FieldFox Handheld Analyzers Education Series

FieldFox Handheld Analyzers Education Series

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.