Abstract
An antenna array composed with power divider and small antenna at the operating frequency of 2.5GHz is designed and investigated, and the main radiation beam of the antenna array can be controlled by bias voltage. The measured results show that the main radiation beam of the antenna array has good directivity when the bias voltage of the varactor in the antenna array is changed from 8V to 2V, and its scanning range is up to 96 degrees, which verifies that the antenna array radiation from backward to forward can be reached by controlling the bias voltage. Also, the power divider and small antenna are designed and analyzed respectively. The power divider and small antenna are designed on the basis of composite right/left-handed transmission line (CRLH TL).
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