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A miniaturized quasi-Yagi antenna using defected ground structure and double dog-bone driver
Microwave and Optical Technology Letters ( IF 1.5 ) Pub Date : 2021-11-15 , DOI: 10.1002/mop.33096
Goksel Turan 1 , Hayrettin Odabasi 1
Affiliation  

A miniaturized quasi-Yagi antenna is presented using a defected ground structure and double dog-bone driver. The antenna has a simplified feeding structure. With the help of the dog-bone driver and slotted ground structure antenna's resonance frequency is lowered. Thus, the miniaturization is achieved. Additional angled dog-bone driver and circular patches in the ground improve impedance matching and bandwidth characteristics. The overall size of the proposed miniaturized quasi-Yagi antenna is 0.29 λ L × 0.3 λ L , where λ L is the wavelength at the lowest operating frequency( S 11 10 dB). The antenna achieves S 11 10 dB between 2.35 and 2.65 GHz in the simulation, 2.36 and 2.63 GHz in the measurement. The antenna has a gain of 3.8–5.4 dBi, over 81 % total efficiency, and stable end-fire radiation characteristics in the frequency range of operation. The proposed antenna is a good candidate for compact portable wireless communication systems.

中文翻译:

使用缺陷接地结构和双狗骨驱动器的小型化准八木天线

使用有缺陷的接地结构和双狗骨驱动器提出了一种小型化的准八木天线。天线具有简化的馈电结构。借助狗骨驱动器和开槽接地结构天线的谐振频率降低。因此,实现了小型化。额外的倾斜狗骨驱动器和地面圆形贴片可改善阻抗匹配和带宽特性。所提出的小型化准八木天线的整体尺寸为 0.29 λ × 0.3 λ , 在哪里 λ 是最低工作频率处的波长( 11 - 10D b)。天线实现 11 - 10 分贝之间 2.35 2.65 模拟中的 GHz, 2.36 2.63测量中的 GHz。天线的增益为 3.8–5.4 dBi,超过 81 %工作频率范围内的总效率和稳定的端射辐射特性。所提出的天线是紧凑型便携式无线通信系统的理想选择。
更新日期:2021-12-20
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