A new noniterative method for pattern synthesis of unequally spaced linear arrays

2019 ◽  
Vol 29 (11) ◽  
Author(s):  
Mohammad G. H. Alijani ◽  
Mohammad H. Neshati
Keyword(s):  
Pattern Synthesis ◽  
Linear Arrays ◽  
Unequally Spaced

Application of the Unit Circle Representation to Pattern Synthesis of Nonuniformly Spaced and Nonuniformly Excited Arrays based on the Teaching Learning Based Optimization

2019 ◽  
Vol 4 (1) ◽  
pp. 8-17
Author(s):  
Abdelmadjid RECIOUI
Keyword(s):  
Unit Circle ◽  
Antenna Array ◽  
Communication Systems ◽  
Sidelobe Level ◽  
Pattern Synthesis ◽  
Linear Arrays ◽  
Array Pattern ◽  
Teaching Learning Based Optimization ◽  
Null Placement ◽  
Teaching Learning

Pattern synthesis of Antenna array has gained much attention over the last years as they constitute an important role in the modern communication systems. Unit circle-based techniques such as Schelkunoff null placement method have proved their effectiveness to synthesize uniformly spaced linear arrays. Nonuniformly spaced antenna array pattern synthesis has been investigated and interesting results have been obtained. In this work, the unit circle representation approach is applied to synthesize nonuniformly spaced and nonuniformly excited linear arrays. The objective is to accurately place nulls in the desired directions while achieving the least possible sidelobe level. The problem is cast as an optimization problem that is solved using the Teaching Learning Based Optimization (TLBO). Examples are dealt with to prove the design approach effectiveness and flexibility for modern communication system applications.

Pattern Synthesis of Sparse Linear Arrays Using Spider Monkey Optimization

2017 ◽  
Vol E100.B (3) ◽  
pp. 426-432 ◽  
Author(s):  
Huaning WU ◽  
Yalong YAN ◽  
Chao LIU ◽  
Jing ZHANG
Keyword(s):  
Spider Monkey ◽  
Pattern Synthesis ◽  
Linear Arrays ◽  
Spider Monkey Optimization
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