MICROWAVE RADIATION METER WITH HIGH SPACE RESOLUTIONS

摘要

PURPOSE:To facilitate the realization of higher space resolutions by arranging a main antenna and a reference antenna to obtain a synthetic directivity with a narrowed beam width with the multiplying of outputs of both the antennas. CONSTITUTION:A main antenna 1 is made up of an equi-space linear array antenna and a reference antenna 2 is arranged separated by D from the center thereof. Then, a microwave output received with the antennas 1 and 2 undergoes a multiplying processing by a multiplying means 3 with the phases matched therebetween. As a result, directivities of the antennas 1 and 2 are multiplied to obtain a synthetic directivity. With this synthetic directivity, a side lobe level is lowered to obtain a side lobe inhibiting effect. In addition, a beam width as multiplied value of the multiplier 3 is narrowed by about a half of the beam width of the antenna 1. This facilitates the realization of higher space resolutions without use of any large antenna.