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引用次数: 0
摘要
本文研究了一种适用于UWB波段的小型阶梯开槽天线的设计方法。通过在低频产生谐振，在阶梯式开槽天线的接地面上插入l形槽，使天线小型化，并在天线上附加条形导流器，以增加中高频区域的增益。分析了l型槽的长度、导向器与槽天线之间的距离以及导向器长度对天线输入反射系数和实现增益特性的影响。在FR4基板上制作了尺寸为30 mm × 30 mm的优化天线，实验结果表明，该天线在VSWR < 2的情况下工作在3.02 ~ 11.04 GHz频段，保证了在UWB波段的工作。
Design of Compact Stepped Open Slot Antenna for UWB Applications
In this paper, a design method for a compact stepped open slot antenna for an operation in the UWB band is studied. The proposed antenna is miniaturized by inserting L-shaped slots on the ground plane of the stepped open slot antenna through the creation of a resonance in the low frequency, and a strip director is appended to the antenna in order to increase the gain in the middle and high frequency regions. The effects of varying the length of the L-shaped slots, the distance between the director and the slot antenna, and the director length on input reflection coefficient and realized gain characteristics of the proposed antenna are analyzed. The optimized antenna with the size of 30 mm × 30 mm is fabricated on an FR4 substrate, and the experiment results show that the antenna has a frequency band of 3.02 — 11.04 GHz for a VSWR < 2, which assures the operation in the UWB band.
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