Visualization of Radiation-Pattern Characteristics of Phased Arrays using Digital Phase Shifters

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Authors
  1. Clénet, M.
  2. Morin, G.A.
Corporate Authors
Defence R&D Canada - Ottawa, Ottawa ONT (CAN)
Abstract
This article presents graphical investigations of the array factor of phased arrays with digital phase shifters. A software program, based on basic antenna array theory, has been developed in MATLAB to obtain the main array characteristics (array factor and directivity). The array factors of linear arrays of different sizes with different types of phase shifters have been studied as a function of the number of bits and the frequency. Unconventional two-dimensional color graphical representations are used to identify some characteristics of the array factor or arrays with digital phase shifters that can not be so clearly and quickly visualized with conventional graphical representations. In particular, the effects of quantization on the array factor for arrays of different sizes and for phase shifters with different numbers of bits, over scanning, and frequency, are shown using this representation. Numerous data are also provided.
Keywords
Delay lines;Graphics;Phase shifters;Quantization;Digital phase shifters;Linear arrays
Report Number
DREO-SL-2001-102 — Scientific Literature
Date of publication
25 Aug 2004
Number of Pages
17
Reprinted from
IEEE Antennas and Propagation Magazine, vol 45, no 3, 2003, p 20-35
DSTKIM No
CA024524
CANDIS No
522102
Format(s):
Document Image stored on Optical Disk

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