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长阵子边馈电的微带对数周期偶极天线的设计
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一种长阵子边馈电的微带对数周期偶极天线的设计
内容简介:给出了一种可作为被动天线的超宽带微带印刷对数周期偶级天线,采用渐变线馈电实现了非平衡到平衡的转换,利用8对阵子得到了驻波2以下的8~18 GHz带宽,在整个带宽内,方向图稳定,前后比小于-20 dB,增益均大于7 dB,仿真结果与实测结果基本吻合,可作为超宽带小型化被动天线使用。
Abstract:An ultra-wideband microstrip dual-level log-periodic antenna is proposed as passive anten-na, taper-line feed is used to achieve conversion from non-equilibrium to equilibrium, and to get 8~18 GHz bandwidth of standing wave 2 following with 8 pairs of dipoles.In the entire bandwidth, pattern is stable, and before-after ratio is less than -20 dB, the gain is greater than 7 dB.The simulation results are basically consistent with experimental results .This antenna can be used as ultra-wideband miniaturi-zation passive antenna.
作者:张文涛, 杨晖, 稂华清,
关键词:微带印刷对数周期偶极天线, 渐变线馈电, 超宽带,
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