共形阵列天线单元极化形式的优化设计

doi:CNKI:11-1929/V.20101213.1757.004

Abstract

Abstract: Due to the effect of the conformal carrier curvature, polarization diversity of the element patterns is a distinct feature of the conformal array antenna manifold. In order to improve the spatial parameter estimation performance by using the polarization diversity of the element patterns, this study formulated a rigorous model of the conformal array manifold with detailed consideration of polarization diversity of the element patterns which introduces the polarization parameters of the elements into the steering vector, and describes more completely the characteristics of the conformal array manifold. On this basis, the objective function for the optimal polarization design for the conformal array antennas is derived and the optimal design method for conformal array antenna with respect to element polarization is obtained by the alternating optimization theory. The simulation results with a conical conformal array antenna demonstrate that with given array geometry the theoretical performance of the direction parameter estimation can be improved effectively through optimizing element polarization.

Key words: conformal array antenna, steering vector, polarization, parameter estimation, theoretical performance

CLC Number:

QI Zisen, GUO Ying, WANG Buhong, HOU Wenlin. Optimal Design for Conformal Array Antennas with Respect to Element Polarization[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2011, 32(4): 693-701.

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Optimal Design for Conformal Array Antennas with Respect to Element Polarization

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