DocumentCode
269939
Title
On Evaluation of Beamforming Networks
Author
Schühler, Mario
Author_Institution
RF & Microwave Design Dept., Fraunhofer Inst. for Integrated Circuits IIS, Erlangen, Germany
Volume
13
fYear
2014
fDate
2014
Firstpage
766
Lastpage
769
Abstract
An approach is presented to characterize a beamforming network by means of a single quantity. It is based on a comparison of the actual output signal vector to the desired output signal vector. The formulation can be concisely written in matrix notation and allows for a characterization over frequency, accounting for absolute offsets. By expressing the characteristics of a beamforming network by a single quantity, subsequent iterations of one network or different network implementations can be compared to each other. The formulation is applied to the evaluation of a 4 × 4 Butler matrix implemented in three different ways.
Keywords
S-matrix theory; S-parameters; antenna arrays; antenna feeds; array signal processing; Butler matrix; absolute offsets; beamforming network; matrix notation; output signal vector; Array signal processing; Butler matrices; Ports (Computers); Scattering; Transmission line matrix methods; Vectors; Antenna arrays; antennas; beamforming networks;
fLanguage
English
Journal_Title
Antennas and Wireless Propagation Letters, IEEE
Publisher
ieee
ISSN
1536-1225
Type
jour
DOI
10.1109/LAWP.2014.2316542
Filename
6786373
Link To Document