Dual-Band On-Body Near Field Antenna for Measuring Deep Core Temperature With a Microwave Radiometer

Abstract

Deep core temperature is the most basic and important information about health conditions. The non-contact infrared thermometer is widely used to measure the temperature of the human body. However, the infrared thermometer cannot measure the deep core temperature. To overcome this limitation, measuring deep core temperature with a microwave radiometer is gaining attention. In this study, we propose a dual-band on-body near-field antenna for measuring deep core temperature with a microwave radiometer application. The proposed antenna has a compact size of 20 mm × 30 mm × 1.52 mm. The negative (-) radiator is located at the top of the substrate and the positive (+) radiator is located at the bottom of the substrate. The dual-band is proposed for high temperature resolution and is achieved by a meander slot on the radiator. The antenna is fabricated on a high dielectric substrate and the stubs are proposed to reduce the size of the proposed antenna so that it can be used on various human body parts.