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Minimax microstrip filter design using direct EM field simulation

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5 Author(s)
J. W. Bandler ; Optimization Syst. Associates Inc., Dundas, Ont., Canada ; S. Ye ; R. M. Biernacki ; S. H. Chen
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A comprehensive approach to microwave filter design which exploits accurate filed simulations driven directly by a gradient-based minimax optimizer is presented. Challenges of efficiency, discretization of geometrical dimensions, and continuity of optimization variables are reconciled by a three-stage attack: (1) efficient response interpolation; (2) smooth gradient estimation; and (3) dynamic database updating. The design optimization of two microstrip filters illustrates the technique described.<>

Published in:

Microwave Symposium Digest, 1993., IEEE MTT-S International

Date of Conference:

14-18 June 1993