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A systematic computer‐aided design of low‐sidelobe linear microstrip antenna arrays is proposed. It starts from identifying the corporate feed architecture which is optimal for a given excitation taper under constrains imposed on the power splits within the feed. The novelty of the approach includes utilization of a numerically efficient simulation‐based kriging model of unequal split microstrip junctions...
We present a computationally efficient method for detecting faulty elements in a small linear microstrip patch array from samples of the array's far‐field magnitude radiation pattern (here represented by realistic EM simulations). Regardless of the array size, our method requires only one expensive full‐wave entire‐array simulation—compared to, e.g., the 696 required by the previous best method (Patnaik...
A technique for rapid simulation-based design of planar antenna arrays is presented. The proposed approach is based on establishing a suitable correction of the analytical array factor model of the array of interest. The corrected array factor is utilized as a fast surrogate allowing us to find the optimum element spacing and phase excitations at low computational cost. The correction terms are iteratively...
A fast technique for fault detection in realistic, electromagnetic (EM)-simulated antenna arrays is proposed. In our approach, an auxiliary analytical array factor formula is enhanced using suitable response correction methods and utilized as a fast representation (or surrogate) of the accurate, EM-based array model. The surrogate is then used to detect faulty elements from amplitude-only data using...
In this work, a technique for expedited design of microstrip antenna arrays using surrogate-based optimization is presented. The proposed methodology exploits an antenna array model which superposes EM-simulated responses (both radiation and reflection) of the array with only one radiator active at a time. Low optimization cost is maintained by constructing the model from coarse-discretization EM-simulation...
A methodology for fast design of antenna arrays is presented. Our approach allows for simultaneous control of the radiation pattern as well as reflection coefficients. We exploit an analytical antenna array model that embeds the simulated radiation and reflection responses of individual radiators. To lower the design cost, the analytical model is based on coarse-discretization simulations and subsequent...
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