用于超宽带应用的集成宽带平衡的小型印刷偶极子天线

2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT) Pub Date : 2012-05-05 DOI:10.1109/ICMMT.2012.6230415

Guang Yang, Q. Chu, Zhihong Tu, Y. Wang

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引用次数: 7

摘要

提出了一种集成宽带平衡器的小型超宽带偶极子天线。该天线由印刷偶极子、嵌入地平面的宽带槽平衡器和倒l型微带馈线组成。利用集成槽平衡器实现了从微带馈线到偶极子天线的非平衡到平衡变压器。该天线在介电常数为2.55的衬底上实现了16 mm× 28 mm× 0.8 mm的小尺寸，工作频带范围为2.9 GHz ~ 10.7 GHz，反射系数< -10 dB，相对阻抗匹配带宽为114.7%。测量结果显示了UWB波段上的近全向辐射方向图。

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Compact printed dipole antenna with integrated wideband balun for UWB application

A compact UltrawideBand (UWB) dipole antenna with an integrated wideband balun is presented. The proposed antenna consists of a printed dipole, a wideband slot balun embedded in the ground plane, and an inverted L-shaped microstrip feedline. By using the integrated slot balun, the unbalance-to-balance transformer from the microstrip feedline to the dipole antenna is achieved. This antenna achieves a small size of 16 mm× 28 mm × 0.8 mm based on the substrate having a dielectric constant of 2.55, and operates over the frequency band from 2.9 GHz to 10.7 GHz, with the reflection coefficient <;-10 dB and the relative impedance matching bandwidth of 114.7%. The measured results show the nearly omnidirectional radiation pattern over the UWB band.

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来源期刊

2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT)

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