Real-time 3-D spatial-temporal dual-polarized measurement of wideband radio channel at mobile station

Author

Kalliola, Kimmo ; Laitinen, Heikki ; Vaskelainen, Leo I. ; Vainikainen, Pertti

Author_Institution

Radio Lab., Helsinki Univ. of Technol., Espoo, Finland

Volume

49

Issue

2

fYear

2000

fDate

4/1/2000 12:00:00 AM

Firstpage

439

Lastpage

448

Abstract

This paper describes a measurement system enabling the complete real-time characterization of the wideband radio channel. The system is based on a wideband radio channel sounder and a spherical antenna array, and it aims to describe the three-dimensional (3-D) spatial radio channel seen by the mobile terminal, including polarization. This information is highly valuable in designing antennas for mobile terminals. The spatial properties of the measurement system are analyzed through test measurements in an anechoic chamber. The system has a 40° spatial resolution and a 17 dB cross polarization discrimination. The values are well above those of a small mobile terminal antenna. The dynamic range in the spatial domain is 12 dB. The measurement is very fast, which makes real-time channel acquisition practical at normal mobile speeds

Keywords

conformal antennas; electromagnetic wave polarisation; microstrip antenna arrays; microwave measurement; mobile antennas; mobile radio; multipath channels; radiowave propagation; 3D spatial radio channel; 3D spatial-temporal dual-polarized measurement; anechoic chamber measurements; angular resolution; antenna design; beam synthesis; conformal antennas; cross polarization discrimination; dynamic range; measurement system; microstrip antennas; microwave measurements; mobile antennas; mobile station; multipath channels; radio channel sounder; radio propagation; real-time channel acquisition; real-time measurement; spatial properties; spatial resolution; spherical antenna array; spherical array; wideband radio channel; Anechoic chambers; Antenna arrays; Antenna measurements; Broadband antennas; Mobile antennas; Polarization; Real time systems; Spatial resolution; System testing; Wideband;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.843093

Filename

843093