linear antenna array pattern
Comparison of the Radiation Pattern of Fractal and Conventional Linear Array Antenna
... in antenna arrays for obtaining multiband ...in linear array antenna design. Therefore, this array know fractal Cantor linear array ...non-fractal linear ...
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Wide Band Linear Printed Antenna Array with Low Sidelobe Cosecant Square-Shaped Beam Pattern
... The solution for solving the excitation valves X can be found by the matrix inversion, which has been used to achieve a close agreement between simulated pattern and the desired coverage as shown in Figure 1, for ...
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Hemisphere Dielectric Resonator Pattern Reconfigurable Antenna and its Linear Phased Array
... resonator pattern reconfigurable antenna (DRA) is proposed in this ...proposed antenna element can operate in four states (SI∼SIV) and correspondingly reconfigure its patterns in four ...thinning ...
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A Review on Microstrip Circular Patch Antennas for Wireless Communication Neha Rhangdale *1 , Prof. Prashant Yadav 2
... microstrip antenna with respect to its radius, slots and feeding techniques as our motive was to achieve miniature antenna with better results in terms of return loss and bandwidth and impedance matching ...
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A Plant Growth Simulation Algorithm for Pattern Nulling of Linear Antenna Arrays by Amplitude Control
... ratio. Pattern nulling techniques available in the literature [1–20] include controlling the amplitude-only, the phase-only, the position- only, and the complex weights of the array ...each array ...
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Design Smart Antenna by Microstrip Patch Antenna Array
... planer array antenna’s main lobes are sharper than linear array ...radiation pattern is not dependent on distance for a certain ...planner array is more suitable for smart ...the ...
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Failure Correction of Linear Antenna Array by Changing Length and Spacing of Failed Elements
... for linear antenna array failure correction using geometry optimization of the failed antenna elements including mutual coupling ...large antenna array problem where failure ...
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A Linear Antenna Array Failure Correction Using Firefly Algorithm
... radiation pattern with minimal loss of quality without replacing the defective element by controlling the excitations of the normal antenna elements of the ...the array pattern in presence of ...
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An Array of m -Shaped Vivaldi Antennas for UWB Applications
... designed linear array (8 elements) of M-shaped Vivaldi antenna is shown in ...of array is kept at 10 mm. The antenna is fed with same signal ...designed array antenna is ...
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Antenna Array Pattern Synthesis via Coordinate Descent Method
... patterns from linear to planar array, is presented above. CDM allows changing the fitness function with a mul- tiplication of a weight function P ( ) θ . The function P ( ) θ can be changed any time during ...
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Design of Pattern Reconfigurable Linear Array Antenna for Multi band Application
... 1X8 Linear Antenna Array that operates in three bands ...the antenna array has multiple resonating frequencies and is able to modify its radiation pattern as well, using ...
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A Linear Mutually Coupled Parallel Dipole Antenna Array Failure Correction Using Bat Algorithm
... Antenna array is an important part of communication system that improves its spectral efficiency and system ...dipole antenna array mostly consists of large number of active elements, which ...
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Null Positioning Of Linear Antenna Array Using Evolutionary Algorithm
... for linear antenna arrays using Bees Algorithm ...Chebyshev pattern with the single and multiple nulls imposed at the directions of interference are given to show the remarkable robustness, accuracy ...
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Study of Unequally-Excited Random Antenna Arrays for Beam Shaping
... a linear phase-shift in order to steer the ...radiation pattern were provided, and unfortunately that scheme proved to be no better than the usual uniform excitations ...average array factor was ...
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Impact of Element Spacing on the Radiation Pattern of Planar Array of Monopole Antenna
... summed linear sub-arrays that are oriented at right angle to each other, such that the outputs of the sub-arrays are cross-correlated to form an antenna ...
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A Pattern Synthesis Method for Large Planar Antenna Array
... complicated pattern can be synthesized by Woodward-Lawson [3] quickly, however this method can only be used in linear ...the pattern synthesis problem is an optimization issue, convex optimization ...
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PERFORMANCE OF MAIN BEAM STEERING AT DIFFERENT ANGLE USING GENETIC ALGORITHM.Pradeep Malviya, Prof. Giriraj Prajapati, Prof. A. C. Tiwari, Mr. Vijit Mishra
... use antenna placement on crowded platforms, there are three methods for synthesizing amplitude and phased array excitations on uniformly arranged antenna element were computer programmed and ...
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The Multi-Objective Optimization of Non-Uniform Linear Phased Arrays Using the Genetic Algorithm
... radiation pattern or an interfering signal have been suppressed by controlling amplitude ...uniform array geometry [7, 16, 17]. The positions of the array elements are appropriately determined by ...
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Reconfigurable Microstrip Stacked Array Antenna with Frequency and Pattern Characteristics
... Moreover, to improve the gain and bandwidth of the antenna, an air gap of 3 mm thickness and a low dielectric constant of 1.03 are added between substrate layers 2 and 3. Four stands made of Teflon ...
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Synthesis of Optimal Narrow Beam Low Sidelobe Linear Array with Constrained Length
... It is only in the case of an array composed of equally spaced isotropic elements that the optimal excitations are known. Dolph was the first to propose a procedure that is optimal only for element spacings that ...
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