用于RFID阅读器和WiMAX应用的双频圆极化截断贴片天线

2015 2nd International Conference on Electronics and Communication Systems (ICECS) Pub Date : 2015-06-18 DOI:10.1109/ECS.2015.7124996

Anju Maria, V. Vishnupriya, K. K. Aju John, T. Mathew

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引用次数: 6

摘要

提出了一种用于超高频RFID阅读器和WiMAX应用的圆形极化辐射的非对称交叉开槽截断贴片天线。为了减少杂散辐射和提高带宽，天线采用近距离馈电技术。天线由两个微带贴片组成，贴片具有不对称的交叉槽，在贴片的同一平面上用微带线馈电。接平面上的箭头形十字槽用于将功率耦合到辐射片。研究了截断角对补片的影响。截断提供了更好的带宽和降低VSWR与圆极化辐射方向图。圆偏振是RFID阅读器的基本要求，它对随机方向的RFID标签进行问询。

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Dual band circularly polarized truncated patch antenna for RFID reader and WiMAX applications

Novel asymmetric cross slotted truncated patch antenna is proposed for circular polarized radiation for UHF RFID reader and WiMAX applications. Proximity feed technique is adopted for the reduction of spurious radiation and improvement of bandwidth The antenna consists of two microstrip patches with asymmetric cross slots fed with a microstrip line in the same plane of the patches. An arrow shaped cross slot on the ground plane is employed for coupling power to the radiating patches. The effects of truncating corners on the patches are investigated. Truncation offers better bandwidth and reduction in VSWR with circularly polarized radiation pattern. The circular polarization is an essential requirement as the RFID reader and performs interrogation of randomly oriented RFID tags.

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2015 2nd International Conference on Electronics and Communication Systems (ICECS)

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