This article's objective is to discuss the anatomical and technical challenges associated with designing subcutaneously implanted antennas for continuous wireless medical telemetry. One challenge in this design process is the connection between simulation setup and the anatomical layering of tissues in biological systems. This article presents an overview of the layers of tissues associated with subcutaneous implant (epidermis, dermis, and hypodermis) as well as the measured dielectric properties of these tissues. In addition, this study presents the design and measurement of an implantable dual-band antenna operating on the wireless medical telemetry service (WMTS) (1.395-1.432 GHz) and industrial, scientific, and medical (ISM) (2.4-2.5 GHz) communication bands. This antenna was validated ex vivo and in vivo using porcine animal models. The antenna has a simulated bandwidth of 2.3% for WMTS and 5.7% for ISM bands. In addition, the antenna saw a 300 MHz shift, ex vivo, to the right for WMTS while not having a shift for the ISM band. For in vivo validation, two antennas were made and tested in a porcine animal model and both show an adequate transmission range of 10 m.

中文翻译：

---

用于皮下植入无线设备模拟和开发的解剖模型


本文的目的是讨论与设计用于连续无线医疗遥测的皮下植入天线相关的解剖学和技术挑战。该设计过程中的一个挑战是模拟设置与生物系统中组织的解剖分层之间的联系。本文概述了与皮下植入物相关的组织层（表皮、真皮和皮下组织）以及测量的这些组织的介电特性。此外，本研究还介绍了在无线医疗遥测服务 (WMTS) (1.395-1.432 GHz) 和工业、科学和医疗 (ISM) (2.4-2.5 GHz) 通信上运行的植入式双频天线的设计和测量乐队。该天线使用猪动物模型进行了离体和体内验证。该天线的 WMTS 频段模拟带宽为 2.3%，ISM 频段模拟带宽为 5.7%。此外，对于 WMTS，该天线在体外发生了 300 MHz 的向右偏移，而对于 ISM 频段则没有偏移。为了进行体内验证，我们制作了两个天线并在猪动物模型中进行了测试，两者均显示出 10 m 的足够传输范围。