采用铁电薄膜变容管的频率可调微带贴片天线

Proceedings of the IEEE 2009 National Aerospace & Electronics Conference (NAECON) Pub Date : 2009-07-21 DOI:10.1109/NAECON.2009.5426620

Hai Jiang, M. Patterson, Chenhao Zhang, G. Subramanyam

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引用次数: 24

摘要

提出了一种基于铁电BST薄膜变容管的新型频率可调微带贴片天线。这种可重构天线的谐振频率是通过调整射频变容器的电容来控制的，该变容器在本设计中用作天线馈线的一部分。由于变容管使用共面波导(CPW)传输线，因此在天线和变容管之间采用锥形微带线以确保适当的过渡。实验结果表明，在铁电变容管上施加的直流偏置电压变化较小的情况下，重构微带贴片天线可以获得较高的调谐范围。

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Frequency tunable microstrip patch antenna using ferroelectric thin film varactor

A novel frequency tunable microstrip patch antenna using ferroelectric BST thin film varactor is presented. The resonant frequency of this reconfigurable antenna is controlled by tuning the capacitance of the RF varactor which is used as part of the antenna feedline in this design. Since the varactor uses the coplanar waveguide (CPW) transmission line, tapered microstrip line between the antenna and the varactor are employed to ensure proper transitions. Experimental results demonstrate that a high tuning range can be achieved for the reconfigured microstrip patch antenna with a lower variation of the DC biasing voltage applied on the ferroelectric varactor.

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Proceedings of the IEEE 2009 National Aerospace & Electronics Conference (NAECON)

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