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Waveguide-Slot Array Antenna Designs for Low-Average-Sidelobe Specifications

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3 Author(s)
Rengarajan, S.R. ; Dept. of Electr. & Comput. Eng., California State Univ., Northridge, CA, USA ; Zawadzki, M.S. ; Hodges, R.E.

This paper discusses the design, analysis, and development of waveguide-fed planar slot arrays to achieve low-average-sidelobe specifications, as may arise in radiometer applications. Such antennas may be required to meet strict average sidelobe levels in different angular regions, and low average return loss over a specified bandwidth. In addition to Elliott's design technique, we used a Moment-Method analysis program, Ansoft's HFSS code, and results of tolerance studies using Monte Carlo simulations to meet the design objectives. Comparisons of simulated results and experimental results are also presented.

Published in:

Antennas and Propagation Magazine, IEEE  (Volume:52 ,  Issue: 6 )