Axial Ratio Bandwidth Enhancement of 60-GHz Substrate Integrated Waveguide-Fed Circularly Polarized LTCC Antenna Array
Axial Ratio Bandwidth Enhancement of 60-GHz Substrate Integrated Waveguide-Fed Circularly Polarized LTCC Antenna Array
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DOI：
10.1109/tap.2012.2207343
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发表时间：
2012-07
影响因子：
5.7
通讯作者：
Yue Li;Zhi Ning Chen;X. Qing;Zhijun Zhang;Junfeng Xu;Zhenghe Feng
中科院分区：
文献类型：
--
作者：
Yue Li;Zhi Ning Chen;X. Qing;Zhijun Zhang;Junfeng Xu;Zhenghe Feng
提出了一种用于60 GHz无线个人区域网(WPAN)的基片集成波导(SIW)馈电圆极化(CP)宽频带(AR)天线阵。天线单元的加宽AR带宽是通过将缝隙耦合的旋转条放置在切割到SIW的宽带上的缝隙之上来实现的。采用低温共烧陶瓷(LTCC)技术设计并制作了4×4天线阵。在条带周围引入了金属顶部的通孔栅栏，以减少阵列单元之间的相互耦合。测试结果表明，AR带宽大于7 GHz。在所需带宽57-GHz范围内，稳定的孔径增益大于12.5dBic。
A substrate integrated waveguide (SIW)-fed circularly polarized (CP) antenna array with a broad bandwidth of axial ratio (AR) is presented for 60-GHz wireless personal area networks (WPAN) applications. The widened AR bandwidth of an antenna element is achieved by positioning a slot-coupled rotated strip above a slot cut onto the broadwall of an SIW. A 4 × 4 antenna array is designed and fabricated using low temperature cofired ceramic (LTCC) technology. A metal-topped via fence is introduced around the strip to reduce the mutual coupling between the elements of the array. The measured results show that the AR bandwidth is more than 7 GHz. A stable boresight gain is greater than 12.5 dBic across the desired bandwidth of 57-64 GHz.