TY - JOUR
T1 - Analytical Beam Forming for Circularly Symmetric Conformal Apertures
AU - Xu, Kuiwen
AU - Ye, Dexin
AU - Zhu, Zhongbo
AU - Huangfu, Jiangtao
AU - Sun, Yongzhi
AU - Li, Changzhi
AU - Ran, Lixin
N1 - Publisher Copyright:
© 1963-2012 IEEE.
PY - 2015/4/1
Y1 - 2015/4/1
N2 - In this paper, we present an analytical beam-forming approach capable of synthesizing differently shaped beams for circularly symmetric conformal apertures with axisymmetrical excitations. Closed form formulas of far-field radiation are mathematically derived in order to obtain rotationally symmetric radiation patterns for typical conformal apertures frequently used in satellite and flight vehicle applications, such as the cone-surfaced, truncated cone-surfaced, hybrid disc-cone and sphere-cone apertures. Based on these formulas, various shaped beams, including pencil, flat-topped and bimodal beams can be rapidly achieved by adjusting either the geometric parameters or the excitation distributions of the conformal apertures. The deterministic approach proposed in this paper provides an efficient method to synthesize specified beam shapes for the aforementioned conformal apertures. Collaborating with conventional optimization based beam forming approaches, the proposed approach can effectively shorten the time-consuming optimization in the beam forming of circularly symmetric conformal arrays, especially large conformal arrays.
AB - In this paper, we present an analytical beam-forming approach capable of synthesizing differently shaped beams for circularly symmetric conformal apertures with axisymmetrical excitations. Closed form formulas of far-field radiation are mathematically derived in order to obtain rotationally symmetric radiation patterns for typical conformal apertures frequently used in satellite and flight vehicle applications, such as the cone-surfaced, truncated cone-surfaced, hybrid disc-cone and sphere-cone apertures. Based on these formulas, various shaped beams, including pencil, flat-topped and bimodal beams can be rapidly achieved by adjusting either the geometric parameters or the excitation distributions of the conformal apertures. The deterministic approach proposed in this paper provides an efficient method to synthesize specified beam shapes for the aforementioned conformal apertures. Collaborating with conventional optimization based beam forming approaches, the proposed approach can effectively shorten the time-consuming optimization in the beam forming of circularly symmetric conformal arrays, especially large conformal arrays.
KW - Beam forming
KW - circularly symmetric aperture
KW - conformal arrays
UR - http://www.scopus.com/inward/record.url?scp=84927666792&partnerID=8YFLogxK
U2 - 10.1109/TAP.2014.2382663
DO - 10.1109/TAP.2014.2382663
M3 - Article
AN - SCOPUS:84927666792
VL - 63
SP - 1458
EP - 1464
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
SN - 0018-926X
IS - 4
M1 - 6990582
ER -