Abstract :
An experimental 35 GHz FSK-CW Radar Sensor is described. A low cost integrated FIN-line structure performs a fast switching VCO, hybrid junction, reflection type modulator and down converter. A single oscillator with a high Q varactor acts as both, transmitter source and receiver local oscillator. The integrated front end with IF preamplifier has a size of 5,0 x 5,5 x 1,8 cm³. Its features are low cost, small size, a minimum number of components for a minimum range of 70 m with 1 m² effectiv radar cross section targets.
