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IEEE Transactions on Antennas and Propagation
Volume 47 Number 3, March 1999

Table of Contents for this issue

Complete paper in PDF format

Beam-Shape Correction in Deployable Phased Arrays

Rumiko Yonezawa, Member, IEEE, Yoshihiko Konishi, Senior Member, IEEE, Isamu Chiba, Senior Member, IEEE, and Takashi Katagi, Fellow, IEEE

Page 482.

Abstract:

Deployable phased-array antennas--antennas that are recently receiving great attention--have a major problem in that they possess the possibility of an incomplete deployment and antenna shape distortion. These effects cause a displacement of the element antenna positions that results in deviation of the phase distribution on the antenna aperture, eventually causing antenna beam deflection. In this paper, we have investigated how to correct this beam deflection by observing the phased-array antenna from certain directions. There are cases when more than one observation point is necessary to carry out the proposed method depending on the extent of the antenna shape distortion and the number of the points is consulted. This correction method makes it possible to correct the deflection of the main beam and also to determine the displacement of relative element positions.

References

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