9 Terahertz and sub-Terahertz radiation components and detectors for applications in the fields of security, homeland security, automotive, IoT, computer game programs, spectroscopy, health and well-being; sub-Terahertz sensor; sensing and processing platform, comprising of a micro-radar or THz or sub-THz sensors and software for signal processing and data interpretation; sensing and imaging systems, based on Terahertz frequencies, for measuring and monitoring of physiological characteristics for use in the automotive, medical, security, safety, homeland security, gaming and IoT industries; antennas; sub-Terahertz micro-radar antenna on chip, namely, silicon chip antenna, SiGe chip antenna and InP chip antenna and ceramic patch antennas, and chip antennas used in communications and sensing applications; multilayer chip antennas; sensor chips for scientific use; sensor chips for medical use, used to monitor and warn regarding vital signs, respiration rate, heart rate, micro-movements of the skin and body, as well as physiological parameters, skin's and body electromagnetic properties; sensor chips for wireless use and in IoT enabled devices; radar and micro-radar apparatus, antennas and detectors; silicon chips, germanium chips, SiGe chips, InP chips; computer chips; computer software for use with micro-radar technologies; computer game software; computer software for use with micro-radar detectors for use on medical devices; radar object detectors for use on medical devices; radar object detectors for use on vehicles; digital signal processors; software for digital signal processing; optical communications systems comprised of optical and electronic hardware and computer software for the transmission of data between two points; radar receivers with amplifiers; radar receivers; radar transmitters; radar reflector apparatus