Systems and methods for noninvasive detection of impermissible objects using decoupled analog and digital components

A system comprising:

• a first housing including within the first housing a set of analog imaging components of a portable radar system on a single chip configured to detect an object concealed on a person, the analog components including a transmitter having at least
• a ramp generator electrically coupled to, and configured to provide a voltage signal to, a wide band voltage controlled oscillator,
• a directional coupler electrically coupled to the wide band voltage controlled oscillator, and
• a phased-array antenna electrically coupled to the directional coupler and configured to transmit signals in a range of operation between 0.1 THz and 1 THz;
• a second housing including within the second housing digital processing components in communication with at least a subset of the set of analog imaging components, the digital processing components configured to receive imaging information for processing, the second housing being a different housing from the first housing;
• the first housing being configured to mount to a first article of portable equipment;
• the second housing being configured to mount to a second article of portable equipment in a way that is separate from the first housing.