Summary
International Symposium on Antennas and Propagation
2006
Session Number:3B2a
Session:
Number:3B2a-4
Full-Model Analysis of a Large Number of Waveguide Slot Antenna Elements and its Design
Miao ZHANG, Jiro HIROKAWA, Makoto ANDO,
pp.1-4
Publication Date:2006/11/2
Online ISSN:2188-5079
Summary:
By applying the method of moments with dyadic Green’s functions, the full-model analysis of a large-scale waveguide slot array is developed and presented in this paper. With comparison to the measured aperture distribution of a 302- element array, the external mutual couplings between all the slots are accurately evaluated. In addition, the computation time for a 300-element array is just one dozen seconds, so this analysis technique can be easily applied to the antenna design. As an initial approach, by iterating the slot offsets and lengths so as to improve the uniformity in excitation, the ripples in amplitude and phase of far field radiated from the slots are suppressed below 0.5dB and ± 5 degrees, respectively.