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A system is described for the detection of non-metallic buried objects by microwave means. It utilises an FMCw radar operating in the range 2-4GHz and incorporates a forward-looking focussed beam antenna. This gives 26dB improvement in signal/clutter over a downward-looking antenna sysem. Experimental results have been obtained with different targets which include buried plastic boxes and plastic pipes. The design of an optimum antenna configuration is discussed.