Non-Linear Juction Detector

MW non-linear junction detector (NLJD) is used for search and location of electronic devices both in active and switch-off state.
The detector operation is based on the property of semiconductor components to generate a response at the 2d and 3d harmonics when radiated by a microwave probing signal.
Semiconductor components of artificial origin will have a higher level second harmonic while semiconductor components of natural origin (e.g. oxide films) will have a higher level third harmonic respectively.

An NLJD analyzes the 2d and 3d harmonics response of the radiated objects, which enables a quick and reliable identification of electronic devices and natural oxide semiconductors.
The NLJD automatically finds the best receiving frequency channel free of noise and distortion providing flawless operation even in the complicated electromagnetic environment. Digital processing of a demodulated signal used gives maximum sensitivity.
A high gain parabolic antenna (20 dB gain at 3600 MHz) used in the device increases detection range of non-linear elements and provides their exact localization in space. For operator’s convenience the detector is equipped with a laser pinpointing to indicate the place to which the maximum power of the probing signal is directed.