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>Micromachined wearable/foldable super wideband (SWA) monopole antenna based on a flexible liquid crystal polymer (LCP) substrate toward imaging/sensing/health monitoring systems
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Micromachined wearable/foldable super wideband (SWA) monopole antenna based on a flexible liquid crystal polymer (LCP) substrate toward imaging/sensing/health monitoring systems
In this paper, a wearable/foldable super wideband (SWB) monopole antenna on a flexible liquid crystal polymer (LCP) substrate is implemented using surface micromachining for imaging, sensing, radar and healthcare monitoring systems. The antenna consists of a coplanar waveguide (CPW)-fed circular patch as a main radiator, a tapered transition portion between the patch and the CPW line, and corner-rounded ground planes, for broad bandwidth. The overall size of the antenna is 37.5 × 35.5 × 0.05 mm3. The fabricated SWB antenna is characterized in a frequency spectrum from 1 to 50 GHz. A measured ratio bandwidth of 11.9:1 (3.0 to 35.3 GHz or 169% bandwidth) has been obtained. The antenna has a monopole-like radiation pattern and a group delay of less than ±1 ns across all spectrum ranges. The measured results show good agreement with those of simulation.
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机译:在本文中,使用表面微加工技术在成像,传感,雷达和医疗保健监测系统上实现了在柔性液晶聚合物(LCP)基板上的可穿戴/可折叠超宽带(SWB)单极天线。该天线由作为主辐射源的共面波导(CPW)馈电圆形贴片,贴片和CPW线之间的锥形过渡部分以及圆角接地平面组成,以实现宽带宽。天线的整体尺寸为37.5×35.5×0.05 mm 3 sup>。制成的SWB天线的特征在于1至50 GHz的频谱。已获得11.9:1的测量比率带宽(3.0至35.3 GHz或169%带宽)。该天线具有类似单极的辐射方向图,并且在所有频谱范围内的群时延均小于±1 ns。测量结果与仿真结果吻合良好。
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