International Symposium on Antennas and Propagation
Experimental Study of a Ka-Band Waveguide-Fed Longitudinal Slot Phased Array
L. Qiu, H. S. Zhang, L. F. Ye, Y. Liu, S. L. Chai,
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A Ka-band waveguide-fed longitudinal slot array designed as a phased array to achieve a ±8? E plane beam scan is presented. A three-layer structure, which is easy to fabricate, has been applied to produce the array. The measured results show that, the array possesses a high gain of more than 34.5dBi in the entire scan range and shows an aperture efficiency of more than 54%. The measured E plane side lobe level is below -16.5dB while the beam scans in the angle range.