Single layer proximity fed microstrip patch antenna for circularly polarized dual band wireless applications

2017 6th International Conference on Reliability, Infocom Technologies and Optimization (Trends and Future Directions) (ICRITO) Pub Date : 2017-09-01 DOI:10.1109/ICRITO.2017.8342478

Ankit Goel, Sachin Kumar, Shobhit Saxena, Rahul Tiwari

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引用次数: 4

Abstract

A single layer proximity fed circularly polarized microstrip antenna for dual band applications is presented. A cross shaped slot with asymmetric dimensions is present on the radiating element with an X-shaped strip embedded along the cross slot for feeding the square patch. In the proposed design, two pairs of circular slots are loaded orthogonally on the square patch. The suggested circular slots excite two orthogonal waves equal in amplitude and with 90 degree phase difference for circular polarization without cutting any portion of the patch. The antenna dimensions are optimized considering the effect of different radius of the circular slot. The antenna dimension is 80 mm × 80 mm × 1.6 mm. The designed antenna has −10 dB reflection coefficient bandwidths of 3.2–3.9 GHz in the first band and 4.9 GHz to 5.6 GHz in the upper second band. The axial ratio bandwidth lies from 3.3–3.4 GHz in the lower band and an upper band from 5.4 GHz to 5.6 GHz.

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圆极化双频无线应用的单层近馈微带贴片天线

提出了一种适用于双频应用的单层近馈圆极化微带天线。在辐射元件上存在具有不对称尺寸的十字形槽，并沿十字形槽嵌入用于馈送方形贴片的x形条。在提出的设计中，两对圆槽正交加载在方形贴片上。建议的圆槽激发两个振幅相等、相位差为90度的正交波，以实现圆偏振，而不切割贴片的任何部分。考虑不同圆槽半径的影响，优化了天线尺寸。天线尺寸为80mm × 80mm × 1.6 mm。设计的天线具有−10 dB反射系数，第一频段为3.2 ~ 3.9 GHz，第二上频段为4.9 GHz ~ 5.6 GHz。下带轴比带宽为3.3 ~ 3.4 GHz，上带轴比带宽为5.4 ~ 5.6 GHz。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2017 6th International Conference on Reliability, Infocom Technologies and Optimization (Trends and Future Directions) (ICRITO)

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