Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/14417
Title: Low-order multi-port arrays with reduced element spacing for digital beam-forming and direction-finding
Authors: CHUA PING TYNG
Keywords: Decoupling network; Kuroda’s identities; Superdirective arrays; Mutual coupling; Monopole antenna; Beam forming
Issue Date: 27-Feb-2005
Source: CHUA PING TYNG (2005-02-27). Low-order multi-port arrays with reduced element spacing for digital beam-forming and direction-finding. ScholarBank@NUS Repository.
Abstract: An array of three monopole elements with reduced element spacing of to is considered for application in digital beam forming and direction finding. The small element spacing introduces strong mutual coupling between the array elements, which affect the signal-to-noise-ratio performance of the array. A decoupling network can compensate for the mutual coupling effects so that simultaneous matching can be achieved at all the ports. This thesis discusses that decoupling can be achieved analytically for arrays with three or more elements and describes Kurodaa??s identities to realize the lumped elements of the derived decoupling network. Design procedures and equations are proposed. Experimental results have shown a close agreement with the theoretical predictions. The decoupled array has a bandwidth of 1% and a superdirective radiation pattern. This narrowband and superdirective antenna is applicable for frequency selectivity in digital beam forming and direction finding.
URI: http://scholarbank.nus.edu.sg/handle/10635/14417
Appears in Collections:Master's Theses (Open)

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
ChuaPingTyng_MEng_thesis.pdf1.69 MBAdobe PDF

OPEN

NoneView/Download

Page view(s)

241
checked on Jan 19, 2018

Download(s)

251
checked on Jan 19, 2018

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.