Novel stacked μ-negative material-loaded antenna for satellite applications
Novel stacked μ-negative material-loaded antenna for satellite applications
复制标题
用于卫星应用的新型堆叠μ负材料负载天线
DOI：
10.1017/s175907871400138x
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发表时间：
2014
影响因子：
1.4
通讯作者：
Merih Palandöken
中科院分区：
文献类型：
--
作者：
T. Upadhyaya;S. Kosta;R. Jyoti;Merih Palandöken
提出了一种基于堆叠分裂环谐振器（SRR）阵列的工程化可调谐双频超材料天线。μ负SRR阵列存在于堆叠微带贴片天线基板的两子层，增加了天线的调谐能力，并在天线增益和交叉极化之间进行了边际权衡。如果谐振腔元件的尺寸明显小于谐振波长，理想情况下小于λ/10，则谐振腔将支持天线的谐振模式。在不改变贴片天线外部尺寸的情况下，嵌入在辐射器中的紧凑SRR阵列便于天线调谐到L5和s频段的预定分配频谱，从而有助于卫星有效载荷的设计。随后利用SRR阵列尺寸和元件间间距的变化来维持天线增益和电压驻波比。实验结果表明，所提出的插入式馈电天线设计在50 Ω位置匹配，适合全球定位卫星应用。
An engineered novel tunable dual-band metamaterial antenna based on stacked split ring resonator (SRR) array is presented. The μ-negative SRR array present at two sublayers of stacked microstrip patch antenna substrate adds tuning capability to the antenna with marginal trade-off between antenna gain and cross-polarization. If the size of resonator element is considerably smaller than resonance wavelength, ideally lesser than λ/10, the resonator would support the resonating mode of antenna. Compact SRR array embedded in radiator facilitate the antenna tuning to intended allocated spectrum of L5- and S-band frequencies without modifying external dimensions of patch antenna, which in turn helps the satellite payload design. The variations in SRR array dimensions and inter-element spacing are subsequently utilized to maintain the antenna gain and voltage-standing wave ratio. The proposed design of inset fed antenna, matched at 50 Ω, was validated by experimental results and it is suitable for global positioning satellite applications.