Gain Enhancement of Patch Antenna Using Metasurface Lens
2021 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (APS/URSI)(2021)
Abstract
This paper proposes a high-gain transmitting lens antenna with a metasurface lens. The lens unit consists of a rectangular metal ring and a square patch inside. In this work we use the X-band microstrip antenna as the feed source. Through this structure, a transmission phase range of $[-178^{\circ},179^{\circ}]$ is realized, the gain of the patch antenna increases by 12.58dB, and the efficiency of the lens antenna reaches 35.92%. This lens antenna provides a new choice for high-gain antennas.
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Key words
metasurface lens,high gain,plane wave,quasi-spherical wave
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