A new class of 3-D filter/antenna integration with high quality factor and high efficiency
A new class of 3-D filter/antenna integration with high quality factor and high efficiency
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DOI：
10.1109/mwsym.2010.5516915
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发表时间：
2010-05
期刊：
影响因子：
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通讯作者：
Y. Yusuf;X. Gong
中科院分区：
文献类型：
--
作者：
Y. Yusuf;X. Gong
本文提出了一种将高Q值三维滤波器与高效缝隙天线集成的新方法。这种技术允许3D滤波器和天线的无缝集成，这可以大大提高天线效率，并显着降低RF前端的形状因子。在X波段实现了一个集成缝隙天线的四极点切比雪夫腔体滤波器原型。滤波器/天线系统的中心频率和分数带宽分别为9.96 GHz和6.0%。由于空腔谐振器的高Q值（<1,000），滤波器/天线系统的效率测量值为89%，而相同滤波器的测量值S21为−0.5 dB（89%）。这意味着在该集成滤波器/天线系统内实现了接近100%的效率缝隙天线。实测的阻抗匹配、效率、增益和辐射方向图与仿真结果吻合较好。
A novel approach to integrate high-Q 3-D filters with highly efficient slot antennas is presented in this paper. This technique allows for seamless integration of 3-D filters and antennas, which can greatly improve the antenna efficiency and significantly reduce the form factor of RF front ends. A prototype four-pole chebyshev cavity filter integrated with a slot antenna is demonstrated in X band. The center frequency and fractional bandwidth of the filter/antenna system are 9.96 GHz and 6.0%, respectively. Due to the high Q factor (∼1,000) of the cavity resonator, the efficiency of the filter/antenna system is measured to be 89%, compared with the measured S21 of −0.5 dB (89%) for an identical filter. This means a near 100% efficient slot antenna is achieved within this integrated filter/antenna system. The measured impedance matching, efficiency, gain, and radiation pattern closely agree with simulation results.