ASYMMETRIC RIDGE WAVEGUIDE SLOT LINEAR ARRAY FOR ONE DEMENSION IDE SCAN-ANGLE PHASED ARRAY

An asymmetric ridge waveguide slot array is a novel linear array radiating element for phased array antenna.The phased array can scan to wide angle (60)in azimuth,and can eliminate the secondary beams when the beam is scanned, which is consisted of many vertical asymmetric ridge waveguide slot linear array elements. And at the same time, the linear array can be easy to get low side-lobe. The theoretical and experimental studies for the linear array are presented in this paper. The basic theory and key technique for the linear array are performed on which systematic design procedure can be based.A constructed sixteen-slot array is tested under the far field, the results in agreement with the theory validate the theoretical analysis and the design proceduce for collinear slot array of asymmetric ridge waveguide.