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Beam-Scanning Transmitarray With Extended Wide Scanning Range
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DOI：10.1109/LAWP.2024.3420414.png)
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摘要
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A novel design method for beam-scanning transmitarray antenna is proposed to extend the scanning range, by using additional freedom degrees including frequency or polarization. The proposed transmitarray utilizes redundant (in some applications) frequency-domain or polarization-domain resources in exchange for the spatial-domain coverage, resulting in wide scanning range, which is not easy to realize by other design methods. As examples, a dual-frequency and a dual-polarized transmitarrays are presented. Radiations at 10/13 GHz or with x-/y-polarizations are skillfully designed to undertake the scanning in the left-/right-half regions, respectively. The results show that the accumulated wide scanning ranges within +/- 60 degrees and +/- 50 degrees are obtained, which are much wider than published works.
Keyword:
Feeds
Transmitting antennas
Design methodology
Apertures
Sun
Substrates
Shape
Circular polarization
dual-frequency
dual-polarization
transmitarray
wide-angle beam-scanning
期刊
IF:
4.8
论文数:
1.0W
被引数:
2.8W
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