Drahtlose Signal- und Energieübertragung mit Hilfe von Hochfrequenztechnik in CMOS-Sensorsystemen

The wireless data communication and power transmission between a sensor system and a base station are examined in this Ph.D. thesis. The total system is called a RFIDS-system (Radio Frequency IDentification Sensor). Microelectronic circuits for wireless data communication and power transmission has been developed in this thesis. The main attention is paid to so called passive RFIDS-systems. These receive their power supply from the RF-carrier, so they do not have to use an additional source of energy. The investigation includes all classical transmission modes that are known from the telecommunication, and the development of circuits for low power supply dissipation. As the physical size get smaller and smaller, so it is possible to implant RFIDS systems in humans and animals. Two different approaches are being pursued, with the first one based on body implants varying out measurements, where transcutaneous RF-links minimize the infection, and second on based on replacing failing body functions, i. e. prosthetics. Two applications featuring the above mentioned approaches are presented in this thesis. Both applications are different and both use different transmission modes