Uniplanar Microstrip Antenna for Endfire Radiation
Uniplanar Microstrip Antenna for Endfire Radiation
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DOI：
10.1109/tap.2019.2900334
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发表时间：
2019-02
影响因子：
5.7
通讯作者：
Rinkee Chopra;G. Kumar
中科院分区：
文献类型：
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作者：
Rinkee Chopra;G. Kumar
提出了一种单面微带天线（MSA），其具有简单的馈电，可在 2.45 GHz 下实现尺寸更小的端射辐射方向图、提高增益和前后比（F/B）。所提出的天线是利用 MSA 和 Yagi-Uda 天线的概念来实现的。分析了各种天线参数对反射系数和增益的影响。优化的单平面 MSA 可提供 6.7 dBi 增益，2.45 GHz 时 F/B 为 19 dB。设计的天线为单面天线，尺寸为 $0.47\lambda _{\mathrm {o}} \times 0.13\lambda _{\mathrm {o}}$ 。添加导向器元件可将天线增益提高至 8.2 dBi，F/B 优于 18 dB。具有导向器的单平面 MSA 的大小为 $0.47\lambda _{\mathrm {o}} \times 0.36\lambda _{\mathrm {o}}$ 。所制作天线的实验结果与仿真结果吻合良好。
A uniplanar microstrip antenna (MSA) is proposed with a simple feed to achieve the endfire radiation pattern with less size, improved gain, and front-to-back ratio (F/B) at 2.45 GHz. The proposed antenna is realized using the concept of MSA and Yagi–Uda antenna. Effects of various antenna parameters are analyzed on the reflection coefficient and gain. Optimized uniplanar MSA provides 6.7 dBi gain with F/B of 19 dB at 2.45 GHz. The designed antenna is uniplanar with the size of $0.47\lambda _{\mathrm {o}} \times 0.13\lambda _{\mathrm {o}}$ . A director element is added to improve the gain of the antenna to 8.2 dBi with F/B of better than 18 dB. The size of the uniplanar MSA with the director is $0.47\lambda _{\mathrm {o}} \times 0.36\lambda _{\mathrm {o}}$ . The experimental results of the fabricated antenna are in good agreement with the simulated results.