Title :
A Versatile Calibration Method for Small Active Antenna Arrays
Author :
Brauner, T. ; Vogt, R. ; Bächtold, W.
Author_Institution :
Laboratory for Electromagnetic Fields and Microwave Electronics, Swiss Federal Institute of Technology (ETH) Zÿrich, 8092 Zÿrich, Switzerland. phone: +41-1/632 66 72, fax: +41-1/632 11 98, email: brauner@ifh.ee.ethz.ch
Abstract :
A novel method is introduced to determine the gain and phase inequalities in antenna arrays that are caused by active components. This method makes use of the reciprocity of a single transmission line that propagates a calibration signal to all elements. This approach avoids a symmetric divider network and therefore it can be easily applied to two-dimensional, not equally spaced or non-planar arrays. An estimation of the systematic error is given. The concept is experimentally verified.
Keywords :
Antenna arrays; Antennas and propagation; Array signal processing; Calibration; Microwave antenna arrays; Optical reflection; Phased arrays; Power transmission lines; Receiving antennas; Transceivers;
Conference_Titel :
Microwave Conference, 2003 33rd European
Conference_Location :
Munich, Germany
Print_ISBN :
1-58053-834-7
DOI :
10.1109/EUMA.2003.341073
