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In this letter, an ultrathin frequency selective surface is developed with a square unit cell loaded with three ring slot pairs. The outer ring slot pair is loaded with metal… Click to show full abstract
In this letter, an ultrathin frequency selective surface is developed with a square unit cell loaded with three ring slot pairs. The outer ring slot pair is loaded with metal shorts. It achieves one polarization-insensitive passband with sharp transition at Ka-band. The design is verified with full-wave simulated results, as well as the measured results. The fabricated FSS has a flat passband, and its measured 3 dB bandwidth is from 33 to 37.5 GHz. A complete angular stability study of the FSS has been conducted. Meanwhile, it can directly attach to the aperture of the horn antenna to lower the whole profile of FSS-antenna configuration. Working as a radome, this FSS can be a good candidate for radar communications and radar-cross-section reduction in radar stealth research area at Ka-band.
Journal Title: IEEE Antennas and Wireless Propagation Letters
Year Published: 2018
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