Boresight Slope Optimization of Subarrayed Linear Arrays Through the Contiguous Partition Method

Abstract

The optimization of the normalized boresight slope of the difference pattern in sub-arrayed linear monopulse antennas is presented. The knowledge of the independently optimum difference excitations, which provide the maximum normalized boresight slope, is exploited with an efficient excitation matching technique based on the contiguous partition method. A set of numerical experiments are provided to assess the effectiveness of the proposed method in reaching the best achievable performances even though with a small number of sub-arrays. Index TermsMonopulse array antennas, Sum and difference patterns, Boresight slope.

Optimisation of Scanning Difference Pattern and Monopulse Feed

“…An improvement to the excitation matching technique is introduced by Rocca et al [16] based on the ant colony algorithm for monopulse operation. Other subarray techniques based on hybrid and evolutionary optimisation solutions have been reported in literature [17][18][19][20][21][22][23][24][25][26][27].…”

Low SLL Pattern of Elliptical Aperture Array Based on Innovative Optimization Method

“…The utilization aspect of antenna arrays has been rapidly developed to attract the advantages of capacity enhancement in communication systems, where an essential structure of antenna arrays with an optimized radiation pattern is demanded [9,10,15,19,20]. The production of the desired radiation pattern requests various techniques to achieve the best outcome [4,6,[8][9][10][11][12]. To address these utilized optimization techniques, several methods have been used in [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18], whose target is the modifications in the antenna array parameters to attain the best radiation pattern [4,6,[7][8][9][10][11][12].…”

“…The production of the desired radiation pattern requests various techniques to achieve the best outcome [4,6,[8][9][10][11][12]. To address these utilized optimization techniques, several methods have been used in [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18], whose target is the modifications in the antenna array parameters to attain the best radiation pattern [4,6,[7][8][9][10][11][12]. Variations in array radiating elements facilitate the way to obtain better radiation characteristics [11,12,16].…”

Pencil beam pattern synthesis of subarrayed planar array

“…An innovative and computationally effective approach to synthesis of optimal sum and difference patterns via uniformly spaced arrays with a number of common excitation is presented and assessed in [11]. The optimization of the normalized boresight slope of the difference pattern in subarrayed linear monopulse antennas is presented in [12]. In [13], the synthesis of subarrayed monopulse planar arrays providing an optimal sum pattern and best compromise difference patterns is addressed by means of an innovative clustering approach based on the Ant Colony Optimizer.…”