This study proposes a metasurface (MS) based high performance antenna in which the radiating patch is embedded with split ring resonators in its square slots. The slotted corner cut rectangular patch antenna with defected ground plane and the MS are placed together in the same plane. The designed prototype operates over dual frequencies with impedance bandwidths (S₁₁ < −10 dB) of 4.02% and 28.24% at 9.20 and 11.65 GHz respectively. The antenna possesses a maximum return loss of 42 dB at 11.65 GHz over 11.23–14.5 GHz band while the measured realized gain of 10.66 dBi has been obtained at 14.44 GHz. The antenna exhibits unidirectional far‐field radiation characteristics and the radiation efficiency of 67% has been achieved at 14.44 GHz. The antenna prototype has been fabricated on FR4 dielectric substrate, having an electrical size of 1.16λ₀ × 1.82λ₀ × 0.06λ₀, where λ₀ is the free‐space wavelength at 11.65 GHz. This makes the proposed antenna single‐layer, broad impedance bandwidth, high gain and ease of fabrication in nature. The measured results are in good agreement with the simulated ones. The designed antenna can be applicable in defense and military, satellite communication, medical analysis for determination of radio waves and numerous communication fields.

中文翻译：

---

具有变形地面结构的SRR基于超表面的增益增强双频段贴片天线

这项研究提出了一种基于超表面（MS）的高性能天线，其中的辐射贴片在其方槽中嵌入了裂环谐振器。带有缺陷接地平面的开槽角切矩形贴片天线和MS放置在同一平面上。设计的原型可在具有阻抗带宽的双频下工作（S ₁₁ <-10 dB）在9.20 GHz和11.65 GHz时分别为4.02％和28.24％。在11.23-14.5 GHz频带上，天线在11.65 GHz时具有42 dB的最大回波损耗，而在14.44 GHz处已获得10.66 dBi的实测增益。该天线具有单向远场辐射特性，在14.44 GHz时已达到67％的辐射效率。天线原型已经制造FR4电介质基板上，具有1.16λ的电尺寸₀  ×1.82λ ₀  ×0.06λ ₀，其中λ ₀是11.65 GHz处的自由空间波长。这使得拟议的天线具有单层，宽阻抗带宽，高增益和易于制造的特性。测量结果与模拟结果吻合良好。设计的天线可用于国防和军事，卫星通信，医学分析以确定无线电波和众多通信领域。