naa a22 4500 510792588 CHVBK 20180411083325.0 cr unu---uuuuu 180411e20130801xx s 000 0 eng 10.1007/s11277-012-0984-9 doi (NATIONALLICENCE)springer-10.1007/s11277-012-0984-9 Simplified Sidelobe Reduction Techniques for Concentric Ring Arrays [Elektronische Daten] [Mostafa Nofal, Sultan Aljahdali, Yasser Albagory] In this paper, a simplified sidelobe reduction technique for uniform concentric circular antenna arrays (UCCA) is proposed. This technique is based on modifying some conventional windows to control the amplitude feeding instead of using adaptive techniques which require excessive processing and calculations and suffer from the lack of practical application especially for UCCA. The modified windows are applied to individual rings of the array that will taper the corresponding current amplitudes. The resulted sidelobe level, beamwidth and stability for amplitude errors are discussed for the different proposed windows where it shows a sidelobe reduction to about 49 dB as in the case of Binomial UCCA while the Hamming window shows the most immunity to tapered amplitude errors. Springer Science+Business Media New York, 2013 Smart antenna nationallicence Mobile communication nationallicence Sidelobe level reduction nationallicence Nofal Mostafa Department of Computer Engineering, College of Computers and Information Technology, Taif University, Taif, Kingdom of Saudi Arabia aut Aljahdali Sultan Department of Computer Science, College of Computers and Information Technology, Taif University, Taif, Kingdom of Saudi Arabia aut Albagory Yasser Department of Information Technology, College of Computers and Information Technology, Taif University, Taif, Kingdom of Saudi Arabia aut Wireless Personal Communications Springer US; http://www.springer-ny.com 71/4(2013-08-01), 2981-2991 0929-6212 71:4<2981 2013 71 11277 https://doi.org/10.1007/s11277-012-0984-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-012-0984-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Nofal Mostafa Department of Computer Engineering, College of Computers and Information Technology, Taif University, Taif, Kingdom of Saudi Arabia aut NATIONALLICENCE 700 1- Aljahdali Sultan Department of Computer Science, College of Computers and Information Technology, Taif University, Taif, Kingdom of Saudi Arabia aut NATIONALLICENCE 700 1- Albagory Yasser Department of Information Technology, College of Computers and Information Technology, Taif University, Taif, Kingdom of Saudi Arabia aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 71/4(2013-08-01), 2981-2991 0929-6212 71:4<2981 2013 71 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer