Devices using wireless communication range from TV receivers to RFID tags, and mobile phones to satellites. Internet access from mobile phones and tablets is growing exponentially, which puts increasing demands on the performance of mobile devices and networks. Radio frequency (RF) electronic components use a lot of passive components, like capacitors and inductors, which cannot be miniaturized as fast as transistors and digital electronics circuits. It is foreseen that within the next 10‐15 years the current RF technologies will not be able to meet the ever increasing performance requirements of mobile handsets. Wireless sensors for health and sports monitoring have already become commonplace, and wireless connections are used extensively between household devices, in security systems and in monitoring and logistics systems in factories and warehouses. The development of smaller, cheaper, less power consuming and more efficient wireless sensor devices is expected to have considerable impact on these areas and enable new solutions for services, healthcare, environment monitoring, and logistics.