“…(2) is used to get the optimum amplitude and position so as to minimize the SLL and the HPBW. In Table V As compared to [1] there is an improvement of 13.85 dB in the SLL and 0.45° in the HPBW by using the PSO and similarly, for N = 16, there is an improvement of 16.11 dB in the SLL and 0.45° in the HPBW shown in Fig. 8.…”
Section: Optimization Of Excitation Amplitude and Inter-element Spmentioning
confidence: 73%
“…The AF for N elements can be considered as follows [13]. (1) where N is the number of antenna elements, a i , d i , ϕ i, and k are the excitation amplitude, the inter-element spacing, the excitation phase and the propagation constant for the i th element.…”
Section: Analysis Of Array Factormentioning
confidence: 99%
“…Considering 12 and 16 antenna array elements, the directivity and the SLL of linear antenna arrays have been improved by increasing the number of elements and controlling the inter-element spacing, the excitation amplitude. Another important application of linear array is null control [1], [5]- [6], [9]. The null control refers to control the radiation pattern in a way such that a relatively small amount of power is received/radiated in certain directions.…”
Section: Optimization Of Excitation Amplitude and Inter-element Spmentioning
“…(2) is used to get the optimum amplitude and position so as to minimize the SLL and the HPBW. In Table V As compared to [1] there is an improvement of 13.85 dB in the SLL and 0.45° in the HPBW by using the PSO and similarly, for N = 16, there is an improvement of 16.11 dB in the SLL and 0.45° in the HPBW shown in Fig. 8.…”
Section: Optimization Of Excitation Amplitude and Inter-element Spmentioning
confidence: 73%
“…The AF for N elements can be considered as follows [13]. (1) where N is the number of antenna elements, a i , d i , ϕ i, and k are the excitation amplitude, the inter-element spacing, the excitation phase and the propagation constant for the i th element.…”
Section: Analysis Of Array Factormentioning
confidence: 99%
“…Considering 12 and 16 antenna array elements, the directivity and the SLL of linear antenna arrays have been improved by increasing the number of elements and controlling the inter-element spacing, the excitation amplitude. Another important application of linear array is null control [1], [5]- [6], [9]. The null control refers to control the radiation pattern in a way such that a relatively small amount of power is received/radiated in certain directions.…”
Section: Optimization Of Excitation Amplitude and Inter-element Spmentioning
“…The similar study has been done by PSO [34] for SLL suppression and by RGA [36] for both SLL suppression and null control. The obtained side lobe levels are shown in Tables 5 and 6.…”
Section: Side Lobe Level Suppression and Null Controlmentioning
confidence: 84%
“…Antenna array synthesis is one of the most significant optimization problems, including side lobe level (SLL) suppression [31][32][33][34][35], null control [31,34,36], and array failure correction [37][38][39]. It is challenging because of the high-dimensionality and strong-nonlinearity.…”
An algorithm of sequential systems of linear equations for nonlinear optimization problems with arbitrary initial point Science in China Series A-Mathematics 40, 561 (1997); Numerical optimization method for HJI equations derived from robust receding horizon control schemes and controller design SCIENCE CHINA Information Sciences 55, 214 (2012); A new algorithm for the problem of robust single objective optimization
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