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首页> 外文期刊>Microwave and optical technology letters >A WIDEBAND MULTILAYER QUASI-YAGI ANTENNA WITH A SIMPLIFIED MICROSTRIP-TO-CPS TRANSITION BASED ON LTCC TECHNOLOGY
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A WIDEBAND MULTILAYER QUASI-YAGI ANTENNA WITH A SIMPLIFIED MICROSTRIP-TO-CPS TRANSITION BASED ON LTCC TECHNOLOGY

机译：基于LTCC技术的简化的微带到CPS过渡的宽带多层拟八字天线

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摘要

In this article, a wideband multilayer quasi-Yagi antenna using low temperature cofired ceramic technology is presented. The antenna is fed by a simplified microstrip-to-coplanar strip transition, which serves as balun and impedance transformer simultaneously. Multilayer directors are flared to direct the antenna propagation toward the end-fire direction. Compared with the traditional planar quasi-Yagi antenna, they can suppress the surface waves significantly and provide better director effect to improve the radiation performance. Furthermore, they excite multiple adjacent resonant modes to broaden the bandwidth. The measured results show that the proposed antenna achieves a wide bandwidth of 60% for S_(11)<-10 dB (26.8-49.8 GHz), better than 12 dB front-to-back ratio, smaller than 16 dB cross polarization and 4.5-6.9 dBi gain within the bandwidth.
机译：本文介绍了一种采用低温共烧陶瓷技术的宽带多层准八木天线。天线由简化的微带至共面带状过渡供电，该过渡同时用作平衡不平衡变压器和阻抗变换器。多层导向器向外张开，将天线传播引向端射方向。与传统的平面准八木天线相比，它们可以显着抑制表面波，并提供更好的指向效果，从而改善辐射性能。此外，它们激发多个相邻的谐振模式以扩大带宽。测量结果表明，对于S_（11）<-10 dB（26.8-49.8 GHz），拟议的天线可实现60％的宽带宽，正面和背面比率均优于12 dB，交叉极化小于16 dB，4.5带宽内为-6.9 dBi。

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