Abstract In this paper, a novel approach to achieve multiband antenna operation using metamaterial based resonant structures is presented. Multiband antenna operation is achieved by employment of complementary split ring resonators (CSRR) printed in the ground plane. The CSRRs resonate at different frequencies according to their optimized dimensions. Proposed approach features simple design and fabrication possibility compared to other methods of achieving multiband antenna operation such as usage of composite right/left-handed (CRLH) transmission line or split ring resonators (SRR) or CSRR around the patch surface. The proposed method is demonstrated through simulation and experimental measurements using three CSRRs with different resonant frequencies together with a tuning CSRR and a radiating patch. Contribution of different CSRRs to obtain multiple resonances have been shown by surface current plots. Measured antenna gain of 2.78, 1.27 and 3.45 dB has been obtained at frequencies of 5.25, 6.28 and 7.29 GHz respectively. The measurements done on developed antenna exhibits close agreement with the simulation results. In context with the current communication application trends involving multiple operating bands like 5G, this approach may have immense application potential since the same can be adopted to achieve compact multiband antennae operation in other frequency bands of interest.

中文翻译：

---

带有 CSRR 负载接地平面的多频段平面天线，用于 WLAN 和固定卫星服务应用

摘要 在本文中，提出了一种使用基于超材料的谐振结构实现多频段天线操作的新方法。多频带天线操作是通过使用印在地平面上的互补裂环谐振器 (CSRR) 来实现的。CSRR 根据其优化尺寸在不同频率下共振。与实现多频带天线操作的其他方法相比，所提出的方法具有简单的设计和制造可能性，例如在贴片表面周围使用复合右/左手 (CRLH) 传输线或裂环谐振器 (SRR) 或 CSRR。所提出的方法通过使用三个具有不同谐振频率的 CSRR 以及调谐 CSRR 和辐射贴片的模拟和实验测量来证明。表面电流图显示了不同 CSRR 对获得多重共振的贡献。分别在 5.25、6.28 和 7.29 GHz 频率下获得了 2.78、1.27 和 3.45 dB 的测量天线增益。在开发的天线上进行的测量与仿真结果非常吻合。在当前涉及多个工作频段（如 5G）的通信应用趋势的背景下，这种方法可能具有巨大的应用潜力，因为它可以用于在其他感兴趣的频段实现紧凑的多频段天线操作。在开发的天线上进行的测量与仿真结果非常吻合。在当前涉及多个工作频段（如 5G）的通信应用趋势的背景下，这种方法可能具有巨大的应用潜力，因为它可以用于在其他感兴趣的频段实现紧凑的多频段天线操作。在开发的天线上进行的测量与仿真结果非常吻合。在当前涉及多个工作频段（如 5G）的通信应用趋势的背景下，这种方法可能具有巨大的应用潜力，因为它可以用于在其他感兴趣的频段实现紧凑的多频段天线操作。