Bees algorithm for design of dual-beam linear antenna arrays with digital attenuators and digital phase shifters

2008 ◽  
Vol 18 (4) ◽  
pp. 337-347 ◽  
Author(s):  
K. Guney ◽  
M. Onay
Keyword(s):  
Antenna Arrays ◽  
Phase Shifters ◽  
Bees Algorithm ◽  
Linear Antenna ◽  
Digital Phase ◽  
Dual Beam ◽  
Linear Antenna Arrays

scholarly journals A Dynamic Invasive Weeds Optimization Applied to Null Control of Linear Antenna Arrays with Constrained DRR

2021 ◽  
Vol 10 (1) ◽  
pp. 52-61
Author(s):  
E. Kenane ◽  
H. Bakhti ◽  
M. Bentoumi ◽  
F. Djahli
Keyword(s):  
Standard Deviation ◽  
Antenna Arrays ◽  
Dynamic Range ◽  
Bees Algorithm ◽  
Invasive Weeds ◽  
Linear Antenna ◽  
Mutation Process ◽  
Array Pattern ◽  
Dynamic Stochastic ◽  
Linear Antenna Arrays

In the present work, a dynamic stochastic method is proposed and used for the synthesis of uniform linear antenna arrays. The proposed method combines the classical invasive weeds (IWO) and the mutation process, which makes it robust, simple and shows flexibility to be adapted. The dynamic IWO applies the mutation process in the calculation of standard deviation during the spatial dispersal process of produced seeds while keeping the mean at the parent plants. In the mutation process, if special conditions were achieved, the standard deviation would be re-initialized. This proposed method tries to achieve an optimal array pattern by acting on the relative amplitude excitation of each element in the linear array for an optimal inter-element spacing. The optimal array pattern has deep or broad nulls in some directions of interferences with low sidelobes level. The objective of the synthesis is to get amplitude excitations with low dynamic range ratio (DRR), which facilitates the design of beamforming feed network. To illustrate the robustness of the proposed method, numerical examples are presented and compared with the obtained results using bees algorithm (BA), bacterial foraging algorithm (BFA), real genetic algorithm (RGA), and the corresponding reference array pattern for each example.

SYNTHESIS OF SIMULTANEOUS MULTIPLE-HARMONIC-PATTERNS IN TIME-MODULATED LINEAR ANTENNA ARRAYS

2014 ◽  
Vol 34 ◽  
pp. 135-142 ◽  
Author(s):  
Sujit Kumar Mandal ◽  
Gautam Kumar Mahanti ◽  
Rowdra Ghatak
Keyword(s):  
Antenna Arrays ◽  
Linear Antenna ◽  
Linear Antenna Arrays

Tens of Gigabits Wireless Communications Over E-Band LoS MIMO Channels With Uniform Linear Antenna Arrays

2014 ◽  
Vol 13 (7) ◽  
pp. 3791-3805 ◽  
Author(s):  
Peng Wang ◽  
Yonghui Li ◽  
Xiaojun Yuan ◽  
Lingyang Song ◽  
Branka Vucetic
Keyword(s):  
Wireless Communications ◽  
Antenna Arrays ◽  
Linear Antenna ◽  
Mimo Channels ◽  
Linear Antenna Arrays
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