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A miniaturized wideband antenna using hybrid L/T-shaped metasurface structure
Microwave and Optical Technology Letters ( IF 1.5 ) Pub Date : 2021-04-25 , DOI: 10.1002/mop.32872
Qizhou Che 1 , Dongxu Chen 1, 2 , Wenquan Che 1
Affiliation  

A novel miniaturized wideband antenna based on a hybrid L/T-shaped metasurface structure is proposed, which is fed by an aperture coupling through a microstrip line. To realize the miniaturization of the metasurface antenna, the hybrid L/T-shaped metasurface structure composed of several L-shaped metal patches and T-shaped metal patches is firstly presented. By placing the L- and T- shaped metal patches with an inverted arrangement, the capacitances caused by interdigital-like capacitors can be introduced accordingly, which can decrease the resonance frequency and then realize obvious size reduction. The fabricated antenna prototype exhibits a wide impedance bandwidth of 44.0% (5.93 ~ 9.28 GHz) with reflection coefficient ≤ −10 dB and peak gain of 6.57 dBi within a compact radiation aperture size of 0.32λ0 × 0.39λ0.

中文翻译:

采用混合L/T形超表面结构的小型化宽带天线

提出了一种基于混合 L/T 形超表面结构的新型小型化宽带天线,该天线通过微带线通过孔径耦合馈电。为了实现超表面天线的小型化,首次提出了由多个L形金属贴片和T形金属贴片组成的混合L/T形超表面结构。通过倒置排列L形和T形金属贴片,可以相应地引入类叉指电容引起的电容,从而降低谐振频率,从而实现明显的尺寸减小。制造的天线原型具有 44.0% (5.93 ~ 9.28 GHz) 的宽阻抗带宽,反射系数 ≤ -10 dB,在 0.32λ 0的紧凑辐射孔径尺寸内峰值增益为 6.57 dBi × 0.39λ 0 .
更新日期:2021-05-31
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