Title :
Characterization of antennas for mobile and wireless terminals by using reverberation chambers: improved accuracy by platform stirring
Author :
Rosengren, K. ; Kildal, P.-S. ; Carlsson, C. ; Carlsson, J.
Author_Institution :
Intenna Technol. AB, Sweden
Abstract :
It has previously been demonstrated that the radiation efficiency of antennas can be measured in reverberation chambers. The measurement accuracy is known to be better the larger the size. The present paper shows that the measurement accuracy can be improved by a factor between 4 and 6 by locating the antenna under test on a movable platform. This is demonstrated in the 900 MHz GSM band by measurements in a reverberation chamber of dimensions 1.0 m /spl times/ 0.8 m /spl times/ 1.0 m. We refer to the moving platform as a new stirring method: platform stirring.
Keywords :
antenna testing; mobile antennas; reverberation chambers; 0.8 m; 1.0 m; 900 MHz; antenna characterization; mobile terminals; movable platform; platform stirring; radiation efficiency; resonant cavity modes; reverberation chambers; wireless terminals; Antenna measurements; Impedance; Mobile antennas; Power measurement; Receiving antennas; Reflection; Reflector antennas; Reverberation chamber; Size measurement; Testing;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2001. IEEE
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-7070-8
DOI :
10.1109/APS.2001.960105