Rohde & Schwarz Inc.

High Rate Pulse Ultrawideband Physical Layer Testing And Certification

Published by Rohde & Schwarz Inc.

Ultrawideband (UWB) is a radio technology operating in the unlicensed spectrum for near-field communications with low power consumption and low complexity at low cost.

UWB has existed for quite a long time and was mainly used for traditional radar imaging without a ratified communications standard for worldwide deployment until it was authorized for the first time in 2002 by the American Federal Communications Commission (FCC). In addition to the FCC, the Institute of Electrical and Electronics Engineers (IEEE) also later elaborated UWB standardization. Since then, UWB technology has grown in commercial importance for short-range data communications as well as high-accuracy ranging applications.

During recent years, UWB technology has shown a steady growth in market size. Based on the market forecast of the UWB Alliance [Ref. 1], it is expected that well over 1 billion UWB-capable devices will be produced by 2025. UWB is used in various market segments such as telecommunications, the automotive industry, banking and financial services, healthcare and the public sector. It is estimated that 80 % of smartphones and related accessories and 11 % of car access devices will be equipped with UWB technology by 2025.

This white paper is an introduction to UWB physical layer fundamentals, the associated test requirements and appropriate test solutions.

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