Rendering wide impedance band of ESA made of SRRs
Rendering wide impedance band of ESA made of SRRs
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渲染由 SRR 制成的 ESA 的宽阻抗带
DOI：
10.1049/el.2016.2440
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发表时间：
2016
影响因子：
1.1
通讯作者：
Wang Gaofeng
中科院分区：
文献类型：
--
作者：
Chen Peiwei;Peng Liang;Wu Aiting;Wang Gaofeng
开环谐振器（SRR）具有突出的小型化潜力和产生强电磁共振的能力，可用于设计小型电天线（ESA）。这里，通过集成三个不同尺寸的面内 SRR 构建了三频段 ESA。这些 SRR 的谐振频率被调整为几乎相等。将这些 SRR 改为非同心的，作为减少它们之间相互影响的一种方法，只需将三个 SRR 各自的阻抗带宽相加即可实现宽带 ESA。给出了 0.129λ 0 × 0.129λ 0 的 ESA 的数值和实验结果。实验中制作的ESA的相对带宽为7.21%，大约是通常的基于SRR的单一ESA的三倍。
Possessing outstanding miniaturisation potentialities and ability to produce strong electromagnetic resonance, split-ring resonators (SRRs) are used to design an electrically small antenna (ESA). Here, a triple-band ESA is constructed by integrating three different sized in-plane SRRs. The resonant frequencies of these SRRs are tuned to be nearly equal. Shifting these SRRs to be non-concentric, as a way to decrease the mutual interaction between them, a broadband ESA can be achieved by simply adding up the three SRRs’ respective impedance bandwidth. Numerical and experimental results for the ESA of 0.129λ 0 × 0.129λ 0 are presented. The relative bandwidth of the ESA fabricated in experiment is 7.21%, a number approximately three times than that of the usual single SRR-based ESA.