A computer-aided design technique for synthesising an antenna array pattern with an adjustable mainlobe width and minimum average sidelobe level is presented. The approach is based on a constrained optimisation proble...
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A computer-aided design technique for synthesising an antenna array pattern with an adjustable mainlobe width and minimum average sidelobe level is presented. The approach is based on a constrained optimisation problem designed to match the array response to a desired response over a mainlobe width while minimising the mean-square value of the array response over the sidelobe regions. Numerical results are presented to illustrate the performance achievable.
The goal of the paper is to improve the log-periodic dipole antenna (LPDA) design procedure introduced by Carrel. A computer-aided design technique is introduced, providing an easyto-use design method of LPDAs. Correc...
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The goal of the paper is to improve the log-periodic dipole antenna (LPDA) design procedure introduced by Carrel. A computer-aided design technique is introduced, providing an easyto-use design method of LPDAs. Corrections to Carrel's design contours, and new constant input resistance and truncation coefficients diagrams are presented. The influence of the feeder characteristic impedance, and dipole length-to-diameter ratio on LPDA parameters is studied. design diagrams for LPDA's typical of HF communications are included.
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