一个高性能全织可穿戴天线用于腕带应用
Asma Ejaz1, Iqra Jabeen1, Zia Ullah Khan2
1ACTSENA Research Group, Department of Telecommunication Engineering, University of Engineering and Technology, Taxila 47050, Pakistan.
Micromachines
|June 28, 2023
概括
本研究介绍了一种用于2.45GHz工业,科学和医疗频段的紧型全织可穿戴天线. 该设计采用电磁带间隙阵列,保持在人体附近的性能,并且对于可穿戴设备来说是安全的.
科学领域:
- 电气工程 电气工程
- 电磁学 电磁学 电磁学 电磁学
- 可穿戴技术可穿戴技术
背景情况:
- 可穿戴设备需要紧而高效的天线,在特定频段运行.
- 现有的天线设计可能会面临形式因素,带宽和人体接近效应的挑战.
研究的目的:
- 为2.45GHzISM频段提出并验证一个紧的,合规的,全织的可穿戴天线.
- 为了优化天线设计,以适用于腕带应用的小型足迹.
- 为了评估天线在自由空间和人体负载条件下的性能.
主要方法:
- 一个单极天线的设计和制造与一个2x1电磁带间隙 (EBG) 阵列集成.
- 优化EBG单元用于目标频段的EBG单元,并使用浮动EBG地面最大化带宽.
- 性能分析包括自由空间测试,人体负载效应和特定吸收率 (SAR) 计算.
主要成果:
- 拟议的天线实现了2.39GHz至2.54GHz的带宽.
- 该天线具有35.4 x 82.4 mm2.4的紧足迹.
- 该设计保持在人体附近的性能,在0.5W输入功率下,SAR值为0.297W/kg,表明安全性.
结论:
- 开发的全织可穿戴天线适用于2.45GHzISM频段的腕带应用.
- 集成EBG阵列可以实现紧的外形因素和强大的性能.
- 据证实,由于SAR值较低,天线设计可以在可穿戴设备中安全使用.
相关概念视频
Equipments Used to Measure Body Temperature
Body temperature can be assessed using various devices and measured in Celsius or Fahrenheit.
Glass-bulb Thermometer:
Glass-bulb thermometers are hollow glass tubes with a bulb tip containing liquid such as ethanol or mercury. Historically, glass bulb mercury thermometers were the standard device to measure body temperature. Today, mercury thermometers are prohibited in many countries due to the hazardous effects of mercury and the risk of exposure if the glass bulb breaks. In general,...
Glass-bulb Thermometer:
Glass-bulb thermometers are hollow glass tubes with a bulb tip containing liquid such as ethanol or mercury. Historically, glass bulb mercury thermometers were the standard device to measure body temperature. Today, mercury thermometers are prohibited in many countries due to the hazardous effects of mercury and the risk of exposure if the glass bulb breaks. In general,...
Equipments Used To Measure Blood Pressure
Direct Method
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
Oxygen Delivering System III: Tracheostomy and T-piece
Oxygen delivery is critical in clinical care, especially for patients with respiratory disorders or those undergoing surgical procedures. Various systems, such as tracheostomy and the T-piece, deliver oxygen to the lungs, ensuring adequate arterial oxygenation.
Tracheostomy
A tracheostomy is a surgically created opening (stoma) in the anterior part of the trachea. It is used to establish a patient airway, bypass an upper airway obstruction, simplify the removal of secretions, permit long-term...
Tracheostomy
A tracheostomy is a surgically created opening (stoma) in the anterior part of the trachea. It is used to establish a patient airway, bypass an upper airway obstruction, simplify the removal of secretions, permit long-term...


