一种改进的共面波导馈电圆极化天线阵

doi:10.3969/j.issn.1001-2400.2010.01.026

Abstract

Abstract:

The technique of sequentially rotating the feed position is introduced to increase the axial-ratio bandwidth of a circular polarized antenna array fed with a coplanar waveguide. The axial-ratio bandwidth can be increased by choosing the rotating angle of the antenna properly and compensating a corresponding phase to the feed line. Calculated results show that the axial-ratio bandwidth of the improved array is increased to 3.7％, while the axial-ratio bandwidth of the conventional array is only 0.9％. Meanwhile, the impedance bandwidth of the improved array is increased to 6.9％, compared with the conventional array whose impedance bandwidth is only 3.2％.

Key words: circular polarization antenna, axial-ratio, bandwidth, coplanar waveguide

ZHANG Hou;ZHENG Hong-xing;WANG Jian. Improved CPW-fed circular polarization antenna array[J].J4, 2010, 37(1): 148-151.

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Improved CPW-fed circular polarization antenna array

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