A beam scanning Fabry–Perot leaky-wave antenna (LWA) is designed at 60 GHz-band for single tone continuous-wave Doppler radar (DR)-based remote vital sign monitoring (RVSM) in a dynamic environment. A brief analysis is presented on antenna requirements for the DR in a typical dynamic scenario where a continuous RVSM is desired of a patient during sleep. The antenna is designed based on the drawn requirements with sufficiently high gain (>18 dBi) and wide beam scanning (12°) over the operating frequency band (62–65 GHz) for accurate RVSM up to 3 m distance. The patient under continuous health monitoring has a flexibility to change his/her position within 1 m angular distance from the fixed sensor position. Detailed RVSM measurements have been carried out with the proposed antenna system at 2 m and 3 m distances from the subject to verify the designed antenna’s suitability for dynamic RVSM application. It has been shown that both the breathing rate (BR) and heartbeat rate (HR) can be successfully detected within 20° of the angular range by tuning the operating frequency from 62 to 65 GHz.

中文翻译：

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用于 60 GHz 远程生命体征检测的法布里-珀罗光束扫描天线

波束扫描法布里-珀罗漏波天线 (LWA) 设计在 60 GHz 频段，用于动态环境中基于单音连续波多普勒雷达 (DR) 的远程生命体征监测 (RVSM)。简要分析了在典型动态场景中 DR 的天线要求，在该场景中，患者在睡眠期间需要连续的 RVSM。该天线是根据绘制的要求设计的，在工作频段 (62–65 GHz) 上具有足够高的增益 (>18 dBi) 和宽波束扫描 (12°)，可实现最远 3 m 的精确 RVSM。处于连续健康监测下的患者可以灵活地在距离固定传感器位置 1 m 角距离内改变他/她的位置。详细的 RVSM 测量是在距离对象 2 m 和 3 m 处使用建议的天线系统进行的，以验证设计的天线对于动态 RVSM 应用的适用性。已经表明，通过将工作频率从 62 GHz 调整到 65 GHz，可以在 20° 的角度范围内成功检测呼吸率 (BR) 和心跳率 (HR)。