Optimizing the radiation pattern of sparse periodic linear arrays

1996 ◽  
Vol 43 (1) ◽  
pp. 7-14 ◽  
Author(s):  
G.R. Lockwood ◽  
Pai-Chi Li ◽  
M. O'Donnell ◽  
F.S. Foster
Keyword(s):  
Radiation Pattern ◽  
Linear Arrays ◽  
Periodic Linear

Almost-periodic linear arrays

1983 ◽  
Vol 71 (3) ◽  
pp. 436-437 ◽  
Author(s):  
D.L. Jaggard ◽  
D.J. Farina
Keyword(s):  
Almost Periodic ◽  
Linear Arrays ◽  
Periodic Linear

Intermolecular Potential Function for Periodic Linear Arrays

1966 ◽  
Vol 45 (6) ◽  
pp. 1941-1945 ◽  
Author(s):  
R. L. McCullough ◽  
J. J. Hermans
Keyword(s):  
Potential Function ◽  
Intermolecular Potential ◽  
Linear Arrays ◽  
Periodic Linear

scholarly journals Radiation Pattern Performance of Unequally Linear Arrays with Parasitic Element

2017 ◽  
Vol 6 (1) ◽  
pp. 110
Author(s):  
Noor Ainniesafina Zainal ◽  
Muhammad Ramlee Kamarudin ◽  
Yoshihide Yamada ◽  
Norhudah Seman
Keyword(s):  
Radiation Pattern ◽  
Base Station ◽  
Sidelobe Level ◽  
Linear Arrays ◽  
Parasitic Element ◽  
Array Configuration ◽  
Grating Lobe ◽  
Base Station Antennas ◽  
Low Sidelobe ◽  
Mobile Base

<p>For next generation of 5G mobile base station antennas, multibeam, multifrequency and low sidelobe characteristics requested. Simplify the feeding network will contribute a low feeder loss and frequency dependent. From the previous research by the author, low sidelobe level reported by density tapered array configuration from -13 dB to -16 dB and the result maintained for wideband operation frequency at 28 GHz, 42 GHz, and 56 GHz. However, the grating lobe has occurred due to element spacing larger than a wavelength of higher frequency (56 GHz). In this paper, an investigation was made of the performance of radiation pattern for unequally microstrip linear array antenna in frequency 42 GHz and 56 GHz by loading parasitic elements. The effect of parasitic element to the impedance, gain, and sidelobe level of unequally microstrip linear spaced tapered array also examined. The design has been simulated using Ansoft High Frequency Structural Simulator (HFSS) ver 16.0.</p>

scholarly journals Edge modes for flexural waves in quasi-periodic linear arrays of scatterers

APL Materials ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 081107
Author(s):  
Marc Martí-Sabaté ◽  
Dani Torrent
Keyword(s):  
Flexural Waves ◽  
Linear Arrays ◽  
Periodic Linear

scholarly journals Constrained synthesis of the Linear Antenna Array using Social Group Optimization

2018 ◽  
Vol 7 (2.17) ◽  
pp. 105 ◽  
Author(s):  
Abdul Rahiman Sheik ◽  
Dr Kalva Sri Rama Krishna
Keyword(s):  
Radiation Pattern ◽  
Social Group ◽  
Beam Width ◽  
Linear Antenna ◽  
Sidelobe Level ◽  
Array Design ◽  
Linear Arrays ◽  
Simulation Based ◽  
Social Group Optimization ◽  
Novel Algorithm

In this paper, novel algorithm known as social group optimization is use for array synthesis problem. The algorithm is implemented to the electromagnetic problem solving and its performance is evaluated. The array design is carried out with the objective of sidelobe level (SLL) suppression with uniform beam width (BW) constraint. The amplitude only technique is used to determine the coefficients of current excitation which produce the desired radiation pattern with the objectives and constraints. The analysis is carried out in terms of radiation pattern for different length of linear arrays. The simulation based experimentation is carried out in Matlab.  

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