Electronic viewing aid

An electronic viewing aid, comprising:

• an electromagnetic oscillation system including a transmitter and a receiver each of which is constructed and arranged to be worn by a person,
• an electrical power source coupled to the transmitter and the receiver,
• a signal processing unit, and a sensory output device coupled to an output of the signal processing unit,
• wherein the electromagnetic oscillation system is a small-scale, lightweight, fully portable personal radar system adapted to be worn by said person, which radar system is a phase-shift radar system which has low power consumption requirements and is constructed and arranged for detecting both the range and the relative velocity of stationary and moving objects;
• said personal radar system including a miniaturized radar front end assembly constructed and arranged to produce millimeter wavelength electromagnetic radiation,
• planar phased array antennae which have very narrow beam width characteristics, and
• a linearly-tuned voltage-controlled oscillator arranged in said transmitter as a source of said electromagnetic radiation.