Far field pattern analysis and measurement of a digital beam forming 8×8 antenna array transmitting from 29.5 TO 30 GHZ

2007 ◽  
Author(s):  
S. Holzwarth ◽  
O. Litschke ◽  
W. Simon ◽  
K. Kuhlmann ◽  
A.F. Jacob
Keyword(s):  
Antenna Array ◽  
Pattern Analysis ◽  
Field Pattern ◽  
Beam Forming ◽  
Far Field ◽  
Far Field Pattern

scholarly journals Second harmonic generation from 3D nanoantennas: on the surface and bulk contributions by far-field pattern analysis

2011 ◽  
Vol 19 (27) ◽  
pp. 26752 ◽  
Author(s):  
Alessio Benedetti ◽  
Marco Centini ◽  
Mario Bertolotti ◽  
Concita Sibilia
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Pattern Analysis ◽  
Second Harmonic ◽  
Field Pattern ◽  
Far Field ◽  
Far Field Pattern

scholarly journals Multiobjective Optimization Using Modified Binary PSO for Reduction of Sidelobe Level of the Thinned Array Antenna

2021 ◽  
Vol 11 (4) ◽  
pp. 2715-2725
Author(s):  
A. Gayatri ◽  
M. Surendra Kumar ◽  
A.M. Prasad
Keyword(s):  
Antenna Array ◽  
Cutting Planes ◽  
Array Antenna ◽  
Field Pattern ◽  
Far Field ◽  
Sigmoid Function ◽  
Efficient Communication ◽  
Planar Array ◽  
Binary Pso ◽  
Far Field Pattern

To design an efficient communication system, controlling the energy present in the side lobes of the far-field pattern is essential with a considered antenna array. This paper discussed one method for synthesizing a thin antenna array for optimizing three objectives simultaneously. They are several active elements, peak SLL and FNBW. All these objectives are in contrast in nature. This multi-objective technique furnishes appreciable flexibility for any specified application. A planar array antenna of 20X10 and 10X10 is synthesized using modified BPSO and in the position updating equation, a modified sigmoid function is used, including spread distance. Numerical results state that MBPSO performs well, and the array antenna of 20X10 with 54% filled aperture (108 elements) produces maximum PSLL and FNBW of -19.28dB and 280 in the remaining ∅ plane, respectively. The pattern representation in the far-field at three cutting planes with low PSLL’s of -20dB.Whereas 10X10 planar array antenna with 52% thinning percentage produces the best PSLL of -22.04 dB and -23.44 dB in ∅=00 & 900principal planes, respectively. The FNBW has observed in two planes is around 310. And also achieved a compromised solution of PSLL and FNBW of -19.28 dB and 270, respectively.

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