A compact metamaterial loaded monopole antenna with offset-fed microstrip line for wireless applications
A compact metamaterial loaded monopole antenna with offset-fed microstrip line for wireless applications
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DOI：
10.1016/j.aeue.2017.08.030
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发表时间：
2018-01-01
影响因子：
3.2
通讯作者：
Raghavan, S.
中科院分区：
文献类型：
--
作者：
Daniel, Samson R.;Pandeeswari, R.;Raghavan, S.
针对通用移动通信系统（UMTS）、微波接入全球互操作性（WiMAX）和无线局域网（WLAN）无线应用，提出了一种具有偏移馈电微带线的紧凑超材料负载单极天线。所提出的天线印刷在19.18 x 22.64 x 1.6 mm(3) FR-4衬底上，其介电常数（epsilon(r)）为4.4。天线辐射单元由分环结构和产生多波段特性的CSRR组成，由偏置微带线馈电。外垂直臂的分裂产生了2.1 GHz的低阶谐振，单极天线中的互补分裂环谐振器（CSRR）产生了3.45 GHz的新谐振频率。利用精确的等效电路设计方程对CSRR谐振频率进行了分析。此外，还详细介绍了劈裂环结构和CSRR的能带特性，以验证其超材料性质。仿真结果与实测结果相吻合。测得的方位面（h面）为全向辐射方向图，仰角面（e面）为双向辐射方向图。(C) 2017 Elsevier GmbH版权所有。
A compact metamaterial loaded monopole antenna with offset-fed microstrip line is proposed for Universal Mobile Telecommunication System (UMTS), Worldwide interoperability for Microwave Access (WiMAX), and Wireless Local Area Network (WLAN) wireless applications. The proposed antenna is printed on a 19.18 x 22.64 x 1.6 mm(3) FR-4 substrate having a dielectric constant (epsilon(r)) of 4.4. The antenna radiating element consists of split ring structure and CSRR for generating multiband characteristics, which is fed by offset microstrip line. A split in the outer vertical arm creates a lower order resonance at 2.1 GHz and the Complementary Split Ring Resonator (CSRR) in the monopole antenna is used to generate a new resonance frequency of 3.45 GHz. The precise equivalent circuit design equations are used to analyze the CSRR resonance frequency. Also, the band characteristics of a split ring structure and CSRR are enlightened in detail to verify the metamaterial property. Simulated results are verified with measured results. The measured azimuthal plane (H-Plane) exhibits omnidirectional radiation pattern and elevation plane (E-plane) represents a bidirectional radiation pattern. (C) 2017 Elsevier GmbH. All rights reserved.