𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A model for the number of independent samples in reverberation chambers

✍ Scribed by Paul Hallbjörner

Publisher
John Wiley and Sons
Year
2002
Tongue
English
Weight
110 KB
Volume
33
Category
Article
ISSN
0895-2477

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Antenna efficiency measurements in reverberation chambers are done by averaging a number of sampled power levels, measured while the mode stirrer rotates. The number of independent samples is the number of stirrer positions that give uncorrelated fields in the chamber, and thereby uncorrelated power levels. A larger number of samples gives a better accuracy of the measured value. This report presents a proposed theoretical model for the number of independent samples of a reverberation chamber, thereby giving a better understanding of how to optimize a chamber design. Measured data from chambers with three different types of stirrers are compared with the use of the model. © 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 33: 25–28, 2002; DOI 10.1022/mop.10220

📜 SIMILAR VOLUMES

Effects of the number of superposition p
Effects of the number of superposition plane waves on the field uniformity in reverberation chamber
✍ Hua Huang; Zhongqi Niu; Bing Bai 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 824 KB

## Abstract Usually the simulation of a reverberation chamber involves the entire volume of the chamber, the antennas, and the stirrers, which cost huge computer time and memory.Superposition of plane waves are employed to make the computation time only related to device under test. Theoretically s

Experimental investigation of the field
Experimental investigation of the field conditions in a vibrating intrinsic reverberation chamber
✍ N. K. Kouveliotis; P. T. Trakadas; I. I. Hairetakis; C. N. Capsalis 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 184 KB

## Abstract The field uniformity and field distribution of a vibrating reverberation chamber is examined using measurements performed in a reverberating screened room. The field conditions in this kind of chamber are investigated, assuming that the direct path signal between the transmitter and the

Study of distributions of modes and plan
Study of distributions of modes and plane waves in reverberation chambers for the characterization of antennas in a multipath environment
✍ Kent Rosengren; Per-Simon Kildal 📂 Article 📅 2001 🏛 John Wiley and Sons 🌐 English ⚖ 264 KB

## Abstract A rectangular metallic cavity is known to support a number of resonant cavity modes. Each of these modes can be described as a sum of eight plane waves incident from different angles. This paper studies how these plane waves are angularly distributed in space, which is of interest when

A majorization theorem for the number of
A majorization theorem for the number of distinct outcomes in n independent trials
✍ C.K. Wong; P.C. Yue 📂 Article 📅 1973 🏛 Elsevier Science 🌐 English ⚖ 607 KB

This paper is concerned with tile probability dtstribution of the number of distinct outcomes k in Pir repetitions of an experjment, It is shr Nn that the majorization of probability vectors implies the majorization of the distribution and e;,pectation of k.