Premium
Measurement of free‐space impedances of small antennas in reverberation chambers
Author(s) -
Kildal PerSimon,
Carlsson Charlie,
Yang Jian
Publication year - 2001
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.10105
Subject(s) - antenna (radio) , imaging phantom , dipole antenna , acoustics , electromagnetic reverberation chamber , free space , physics , measure (data warehouse) , slot antenna , reverberation , antenna measurement , optics , electrical engineering , engineering , computer science , database
We have recently shown that reverberation chambers can be used to measure the radiation efficiency of antennas for wireless and mobile terminals. In the present paper, we show that it is possible, in the same measurement setup, to measure the input impedance of the antenna as would be seen when the antenna radiates in free space. If the antenna is located close to, e.g., a head phantom inside the chamber, we will measure the impedance of the antenna as it would be seen if the dipole and the phantom were located in free space with the same location and orientation relative to each other. © 2002 John Wiley & Sons, Inc. Microwave Opt Technol Lett 32: 112–115, 2002.