There is a growing interest in the development of invasive and non-invasive methods for measuring biomaterials using millimeter-wave sensors. Of particular interest are invasive sensors, such as instantaneous blood glucose and oxygen sensors, dehydration detection, and brain activity monitoring, where the main challenge is the miniaturization of sensor devices. Another challenge for biomedical sensors is minimizing the power consumption of the entire device and integrating the power management system. An implantable system has to operate within the patient’s body without the need to be removed for recharging. To be able to transfer information from devices outside of the body a wireless communication interface needs to be implemented. To reduce the transmit antenna, mm-wave realization is advantageous.
The glucose sensor topic is based on the NEXGEN (Next Generation of Body Monitoring) project and focuses on the research and development of ultra-low-power 22nm CMOS devices.
The project involves the development and design of a transceiver device, which includes an oscillator with a tissue permittivity sensor, phase shifters, frequency mixers, and analog and digital signal converters. The transmitting part of the module includes an integrated 120 GHz slot antenna and a corresponding microwave path with a frequency multiplier/divider, a frequency modulator, and a power amplifier. The transceiver will be powered and controlled via a power management circuit that contains a bandgap reference circuit, ultra-low power regulator and compensation circuits, and a nano controller: a flexible architectural processor for ultra-low power always-on system state controllers.
If you are interested in the analog, mm-wave/rf, or digital circuit design then please contact the responsible employee (Adilet Dossanov).
