ACCURATE MODELING OF THE CYLINDRICAL WIRE KERNEL

Many existing numerical techniques used to analyze wire antennas assume the current distribution on the wire to be one-dimensional (1D). This assumption imposes geometric constraints on the ratio of the wire radius to the discretized antenna segment length. Moreover, many kernel approximations are so inaccurate that higher-order basis functions for wire modeling are unthinkable. More accurate kernel models are possible, but generally result in infinite series or require complicated integration rules. This work presents a new generalized approach to the modelling of cylindrical wire antennas. The method is not plagued by the aforementioned geometric restrictions and can be extended to model the higher-order behavior of wires. The numerical results show the method to be both stable and robust. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 740–744, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21461

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