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Ratna Kumari, U.
- Generation of Narrow Beams from Thinned Circular Antenna Array with Dipole Elements using BAT Algorithm
Authors
1 Department of ECE, GIT, GITAM University, Visakhapatnam – 45, IN
2 Department of ECE, AU College of Engineering, Andhra University, Visakhapatnam-03, IN
3 Department of ECE, AU College of Engineering, Andhra University, Visakhapatnam-03, IN
Source
Wireless Communication, Vol 7, No 9 (2015), Pagination: 296-300Abstract
The Circular Antenna Array with Dipole radiators is practical antenna array to scan the entire azimuthal plane. The beams with narrow beamwidth and less side lobe level are very useful point to point communication. As the Circular Antenna Array suffers with high sidelobe level and broad beam problems an attempt is made here to reduce these radiation parameters with an efficient metaheuristic optimization technique BAT algorithm. Thinning process is applied on the optimized array for better results. An extensive comparison is brought out between optimized thinned array and uniformly distributed fully populated array.Keywords
Circular Antenna Array, Dipole, Narrow Beams, Bat Algorithm and Thinning.
- Synthesis of Linear Antenna Arrays Using Evolutionary Algorithms
Authors
1 Department of ECE, GITAM University, Visakhapatnam – 45, IN
2 Department of ECE, AU College of Engineering, Andhra University, Visakhapatnam - 03, IN
Source
Wireless Communication, Vol 9, No 4 (2017), Pagination: 71-76Abstract
Pattern Synthesis is one of the important problems in all communication systems including radars. The beams with narrow beamwidth and less side lobe level are very useful in point to point communication. Most often patterns are designed using conventional design techniques. However, most of them do not yield optimized and desired patterns. In view of all these facts, intensive investigations are carried out thoroughly on the pattern synthesis techniques with the objective of obtaining narrow beams with low sidelobes from linear arrays using different novel evolutionary algorithms. The Linear Antenna Array with Dipole radiators is practical antenna array to scan the entire azimuthal plane. Hence different Optimization techniques are applied on this Linear Antenna Array. Later thinning process is applied on the optimized array for better results. An attempt is made to compare Optimized thinned array and uniformly distributed fully populated array. The results are found to be very much effective which can be used for different wireless communication applications.