高频应用的无基质表皮纹身天线的上限电磁性能
Adina Bianca Barba1, Alessio Mostaccio2, Rasha Ahmed Hanafy Bayomi3
1Radio6ense S.r.l., Via Della Tenuta di Torrenova 142, 00133 Rome, Italy.
Sensors (Basel, Switzerland)
|February 13, 2026
概括
研究人员开发了用于可穿戴传感的金纳米网表皮天线. 这些无基板天线可实现可靠的UHFRFID读取范围高达40厘米,克服了以前的电磁性能限制.
科学领域:
- 电气工程 电气工程
- 材料科学 材料科学 材料科学
- 生物医学工程 生物医学工程
背景情况:
- 无基质的表皮天线提供无形的长期可穿戴传感.
- 这些天线的电磁性能受到超薄导体特性的限制.
研究的目的:
- 为了研究金纳米网作为无基质表皮纹身天线的辐射导体.
- 分析板电阻和欧姆损失对天线性能的影响.
- 优化天线设计,以提高辐射效率和收益.
主要方法:
- 利用金纳米网作为无基质表皮纹身天线设计中的辐射导体.
- 采用了表面阻抗建模和全波模拟.
- 使用幽灵和人类实验对人体进行实验.
主要成果:
- 黄金纳米网的行为受板电阻的控制,对辐射效率施加上限.
- 欧姆损失在皮肤上天线的实现收益上建立了一个独立于几何的极限.
- 优化的感应合循环架构接近了性能极限,实现了30-40厘米的UHF RFID读取范围.
结论:
- 金纳米网是一种可行的材料,用于无基质的表皮天线.
- 欧姆损失从根本上限制了皮肤上的天线的收益.
- 开发的天线设计证明了可用于可穿戴传感应用的可靠性能.
相关概念视频
Clinical Applications of Epidermal Stem Cells
3.3K
Epidermal stem cells (EpiSCs) are mainly located at the basal layer of the epidermis. These cells repair minor injuries of the skin and replace dead skin cells. However, EpiSCs’ cannot heal severe wounds such as major burns or those from diabetes or hereditary disorders. In such cases, culturing the epidermal stem cells from the patient is possible and has yielded successful treatment options, such as laboratory-grown skin grafts. These grafts are synthesized using a patient’s own...
3.3K
The Electromagnetic Spectrum
65.6K
The electromagnetic spectrum consists of all the types of electromagnetic radiation arranged according to their frequency and wavelength. Each of the various colors of visible light has specific frequencies and wavelengths associated with them, and you can see that visible light makes up only a small portion of the electromagnetic spectrum. Because the technologies developed to work in various parts of the electromagnetic spectrum are different, for reasons of convenience and historical...
65.6K
The Electromagnetic Spectrum
33.9K
Electromagnetic waves are categorized according to their wavelengths and frequencies, giving the electromagnetic spectrum. These waves are classified as radio, infrared, ultraviolet, etc. Radio waves refer to electromagnetic radiation with wavelengths ranging from millimeters to kilometers. Radio waves are commonly used for audio communications (i.e., radios) and typically result from an alternating current in the wires of a broadcast antenna. They cover a broad wavelength range and are used...
33.9K
The Antenna Complex
8.0K
Plants and other photosynthetic organisms comprise pigments capable of absorption of direct sunlight. These pigments are present in the reaction center - the main site of photochemical reactions as well as in the antenna complex. Under average light conditions, the rate at which reaction center pigments absorb light is far below the electron transport chain's capacity. As a result, the reaction center alone cannot provide enough energy to drive photosynthesis. The photosynthetic efficiency can...
8.0K
Electromagnetic Waves
11.6K
James Clerk Maxwell formulated a single theory combining all the electric and magnetic effects scientists knew during that time, calling the phenomena his theory predicted “Electromagnetic waves”. He brought together all the work that had been done by brilliant physicists such as Oersted, Coulomb, Gauss, and Faraday and added his own insights to develop the overarching theory of electromagnetism. Maxwell’s equations, combined with the Lorentz force law, encompass all the laws...
11.6K
Electromagnetic Fields
2.8K
Electric fields generated by static charges, often referred to as electrostatic fields, are characteristically different from electric fields created by time-varying magnetic fields. While the former is a conservative field, implying that no net work is done on a test charge if it goes around in a complete loop in the field, the latter is, by definition, not a conservative field; net work is done, and it is proportional to the rate of change of magnetic flux.
However, the observation of...
However, the observation of...
2.8K


