首页|A Focused Metasurface Lens Antenna with Gain Enhancement
A Focused Metasurface Lens Antenna with Gain Enhancement
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NETL
NSTL
Applied Computational Electromagnetics Soc
A specialized metasurface has been developedfor lens antenna applications. This innovative metasurfaceunit cell comprises five metallic layers and fourdielectric layers. Each metallic layer consists of a pairof back-to-back split resonant rings. The proposed unitcell is highly effective with a transmission phase coverageexceeding 360◦ and a transmission amplitude largerthan 70% at X-band (8.8-11.2 GHz). The unit cell hasbeen thoroughly designed, fabricated and tested. To verifythe present unit cell, a metasurface array with 27×27elements is designed. An X-band horn antenna is usedas the feed source. Simulation and measurement resultsshow that the electromagnetic wave from the feed hornis focused within the operating band, resulting in a measuredgain of 16.9 dB at 9 GHz and 19.2 dB at 11 GHz.Thus, a gain enhancement of 5.4 dB at 9 GHz and 5.7 dBat 11 GHz are obtained, making it a good reference forengineering applications.
metasurfacesplit resonant ringwideband
Yu Dong、Xing Chen
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College of Electronic and Information EngineeringSichuan University, Chengdu 610064, China
NETL
NSTL
Applied Computational Electromagnetics Soc
