A hybrid finite-element-modal-expansion procedure for the three-dimensional analysis of passive microwave devices exploiting higher order vector basis functions and an innovative class of curved elements is presented. If modal expansions on ports are not analytically known, they can be numerically obtained via a preliminary two-and-one-half-dimensional finite-element analysis; curved triangular and tetrahedrical elements are defined by a rational Bezier mapping, which provides a remarkable increase in accuracy and flexibility over the conventional polynomial mapping without a significant increase in computational burden. Numerical results are provided to illustrate the efficiency and feasibility of the proposed technique.

A hybrid finite-element-modal-expansion method with a new type of curvilinear mapping for the analysis of microwave passive devices / E. Martini; G. Pelosi; S. Selleri. - In: IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES. - ISSN 0018-9480. - STAMPA. - 51(2003), pp. 1712-1717. [10.1109/TMTT.2003.812571]

A hybrid finite-element-modal-expansion method with a new type of curvilinear mapping for the analysis of microwave passive devices

PELOSI, GIUSEPPE;SELLERI, STEFANO
2003

Abstract

A hybrid finite-element-modal-expansion procedure for the three-dimensional analysis of passive microwave devices exploiting higher order vector basis functions and an innovative class of curved elements is presented. If modal expansions on ports are not analytically known, they can be numerically obtained via a preliminary two-and-one-half-dimensional finite-element analysis; curved triangular and tetrahedrical elements are defined by a rational Bezier mapping, which provides a remarkable increase in accuracy and flexibility over the conventional polynomial mapping without a significant increase in computational burden. Numerical results are provided to illustrate the efficiency and feasibility of the proposed technique.
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1712
1717
E. Martini; G. Pelosi; S. Selleri
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2158/222791
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