Systems and methods may provide for an integrated miniature sensor that operates in the Terahertz region of the electromagnetic spectrum. The integrated miniature sensor may detect a remote target and operate in a non-contact, non-invasive manner. Numerous signal analysis techniques may be employed such as Doppler radar technology, absorption spectroscopy, and others when the integrated miniature sensor is used in biomedical, physiological and other settings where prolonged recording of bio-signals is needed.