Frequency-scanned X-band waveguide array

This paper presents the design of an
X
-band frequency scanned array in RG 52/U waveguide. The radiating elements consist of edge slots machined in the narrow wall of the guide. Experimental results of the measured slot conductances for the feed system and the antenna elements are given for slot spacings of 0.8 in and various slot orientations and depths. Finally, theoretical and experimental radiation patterns are compared for a 400-element planar array.