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Numerical Analysis of Cone/Pyramid-Shaped Antennas Using Wires/Surface-to-Surface Junction Basis

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3 Author(s)
Xianzheng Zong ; Sch. of Electr. Eng., Univ. of Electron. Sci. & Technol., Chengdu ; Zaiping Nie ; Xiaofeng Que

Two modified junction basis functions were presented based on the principles of current continuity and zero charge. A new type of wires-to-surface basis was used to analyze wire conical/pyramidal monopoles mounted on conducting plates more efficiently than with the traditional wire-to-surface junction element: To obtain an uniform current distribution along all the wire elements of the antenna, the mesh size and the iterative tolerance can be set as 0.08-0.10lambda and 1e-3 to 1e-2 with this new basis function or its multiple version, while these two parameters need to be about 0.04lambda and 1e-5, respectively, as for the old one. A single-point surface-to-surface junction basis function was introduced to resolve thin sheet pyramidal or conical monopole antennas or any other single-point surface-to-surface junction problems which role the traditional junction basis is not yet suited to.

Published in:

Antennas and Propagation, IEEE Transactions on  (Volume:57 ,  Issue: 4 )

Date of Publication:

April 2009

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