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Printed broadband Quasi-Yagi antenna with monopole elements
IET Microwaves, Antennas & Propagation ( IF 1.7 ) Pub Date : 2020-05-04 , DOI: 10.1049/iet-map.2019.0628
Amar D. Chaudhari 1 , Kamla Prasan Ray 1
Affiliation  

A new configuration of a Printed Quasi-Yagi Antenna (PQYA) with monopole elements has been proposed for broadband operation, in this study. This three elements printed Yagi antenna consists of a fed monopole on one side of the dielectric substrate, whereas, the parasitic elements of a reflector and a director are on the other side on the ground plane. The presence of the ground plane effectively makes these monopoles function as dipoles, making it a compact three-element Yagi antenna. This compact PQYA, with simple microstrip line feed, yields broad bandwidth (BW) of 53.3% from 1.5 to 2.59 GHz for | S 11 | ≤ –10 dB with a gain of 4.65 dBi throughout the impedance BW in the end-fire radiation pattern. Additionally, it has front to back ratio>10 dB and cross-polarisation level <20 dB along the end-fire direction. Theoretical and measured characteristics of the proposed antenna are presented, which are in agreement.

中文翻译:

带单极子的印刷宽带准八木天线

在这项研究中,有人提出了一种带有单极子元件的印刷准八木天线(PQYA)的新配置。这三个元素印刷的八木天线由介电基片一侧的馈电单极组成,而反射器和指向矢的寄生元素位于地平面的另一侧。接地平面的存在有效地使这些单极子起到了偶极子的作用,使其成为紧凑的三元八木天线。这种紧凑的PQYA具有简单的微带线馈电,在1.5 GHz至2.59 GHz的频率范围内产生的宽带宽(BW)为53.3%。 小号 11 | ≤–10 dB,端火辐射方向图上整个阻抗BW的增益为4.65 dBi。此外,它的前端与后端之比> 10 dB,沿交叉方向的交叉极化水平<20 dB。提出了拟议天线的理论和测量特性,这是一致的。
更新日期:2020-05-04
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