A pseudo-correlation type radiometer based on astrophysical instrumentation is proposed for biomedical applications. The working frequency band is centred at 3.5 GHz. The prototype performance and functionality are assessed. The theoretical analysis of the receiver topology is described, as well as the subsystems employed in its configuration, such as a customized on-body antenna and microwave circuitry based on off-the-shelf devices. Experimental characterization of the individual subsystems and preliminary measurements of the radiometer prototype are presented. Furthermore, customized phantoms, based on polyvinyl alcohol cryogel, are employed for the characterization of the on-body antenna, as well as the radiometer.

提出了一种基于天体物理仪器的伪相关型辐射计，用于生物医学应用。工作频段以3.5 GHz为中心。评估了原型的性能和功能。描述了接收机拓扑的理论分析，以及在其配置中采用的子系统，例如定制的人体天线和基于现成设备的微波电路。介绍了各个子系统的实验特性以及辐射计原型的初步测量。此外，基于聚乙烯醇冷冻凝胶的定制体模被用于表征人体天线以及辐射计。