Test benches for wireless system characterization and modeling

Nuno Borges Carvalho; Dominique Schreurs

doi:10.1017/CBO9780511791512.006

4 - Test benches for wireless system characterization and modeling

Published online by Cambridge University Press: 05 June 2014

Nuno Borges Carvalho and

Dominique Schreurs

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Nuno Borges Carvalho: Affiliation:
Universidade de Aveiro, Portugal
Dominique Schreurs: Affiliation:
Katholieke Universiteit Leuven, Belgium

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Summary

Introduction

In this chapter the main objective is to present several test benches for modeling and characterization that allow a correct identification of several linear and nonlinear parameters useful for wireless systems. These benches include the following.

1. Test benches for characterization
a. Power-meter measurement
b. Noise-figure measurements
c. Two-tone measurements
d. VNA measurements
e. NVNA measurements
f. Modulated signal measurements
g. Mixed-domain (analog and digital) measurements
h. Temperature-dependent measurements
2. Test benches for behavioral modeling
a. Volterra-series modeling
b. State-space modeling
c. Beyond S-parameters

Test benches for characterization

Power-meter measurements

As referred to in Chapters 1 and 2, power was the first important measurement to become available for radio communications, since it allows a wireless system engineer to calculate and predict some of the most important aspects of radio propagation. In order to measure power, a power meter should be used. A typical setup is presented in Fig. 4.1. A typical instrument is shown in Fig. 4.2.

When using a power meter, several steps should be executed prior to the measurement itself, and several parameters should be known in advance for tuning and selecting the correct set. The first step towards a power measurement is the correct selection of the power probe. The selection depends on the frequency range which the probe can cover, as well as the power range.

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Type: Chapter
Information: Microwave and Wireless Measurement Techniques , pp. 166 - 216

DOI: https://doi.org/10.1017/CBO9780511791512.006 [Opens in a new window]

Publisher: Cambridge University Press

Print publication year: 2013

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References

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