Systems and methods for noninvasive detection of impermissible objects

A method comprising:

• scanning, by a coherent radar system that includes a phased array antenna on a chip that provides a frequency modulated continuous wave to scan in a terahertz range, a target;
• determining, at a processor in communication with the coherent radar system, whether the target is moving within a field of view of the coherent radar system;
• reorienting, in response to the determining whether a target is moving within the field of view, the coherent radar system to keep the target within the field of view;
• creating a scanning data set based on the scanning;
• determining, based on the scanning data set, whether an object is present on the target;
• transmitting an alert signal to create a user alert in response to the determining whether an object is present on the target.

An apparatus comprising:

• a first coherent radar system, including a first phased array antenna, on a first chip configured to operate in a terahertz range to provide a frequency modulated continuous wave, and having a first field of view;
• a second coherent radar system, including a second phased array antenna, on a second chip configured to operate the terahertz range to provide a frequency modulated continuous wave, and having a second field of view;
• a first processor in communication with the first coherent radar system and configured to include instructions to:
• send a first signal to the first coherent radar system to scan a target with the first field of view;
• a second processor in communication with the second coherent radar system and configured to collaborate with the first processor, and further configured to include instructions to:
• send a second signal to the second coherent radar system to scan a target within the second field of view.