The backbone of modern telecom infrastructure consists of optical fibre-based systems in combination with wireless technologies. Medical applications of photonics and microwaves are numerous, and sensing applications include radar, environmental monitoring and radio astronomy. This programme offers a unique opportunity to study a combination of subjects for which Chalmers has world-class facilities: Onsala Space Observatory with radio telescopes and equipment to study the Earth and its atmosphere, the Nanofabrication Laboratory with a clean-room for research and fabrication of advanced semiconductor devices and integrated circuits, and research laboratories with state-of-the-art photonics and microwave measurement equipment.