Electronics; Radiowave and Microwave Technology

Code 84 in the PACS 2010 scheme designates the field of electronics and radio-wave and microwave technology, covering the theory, design, and application of electronic devices, circuits, and components as well as the generation, transmission, and detection of radio and microwave radiation, including waveguides, resonators, antennas, and related measurement techniques. It encompasses both classical and quantum aspects of signal processing and electromagnetic wave propagation in the frequency range from a few megahertz up to terahertz.