Thu, 07 Aug 2008 21:54:39 BST CiteULike: dcastro's library [2029 articles] http://www.citeulike.org/user/dcastro/article/2782046 CiteULike.org en-gb Copyright © 2004-2008 citeulike.org http://www.citeulike.org/user/dcastro/article/2782046 <i>Microwave Theory and Techniques, IEEE Transactions on, Vol. 50, No. 11. (2002), pp. 2624-2628.</i><br /><br />Wave propagation along the finite-width conductor-backed coplanar waveguide (FW-CBCPW) with periodically loaded one-dimensional electromagnetic bandgap (EBG) cells proposed earlier by the authors is investigated theoretically and experimentally in this paper. The full-wave simulation in conjunction with Floquet's theorem is employed to find the dispersion diagram for characterizing the guided and leaky waves over a wide frequency range. For examining the guided-wave mode, the equivalent-circuit model is established to obtain the analytical formula of the Bloch impedance. The remarkable slow-wave factor 1.9-2.9 times higher than that of a conventional FW-CBCPW is presented. When operating frequency is sufficiently high, the leaky-wave mode is emitted so that the structure radiates in the backward direction. Good agreement among the results of the full-wave simulation, equivalent-circuit model, published data, and measurement supports the usefulness of the proposed full-wave simulation and also validates the analytical formula. By properly adjusting the circuit configuration, the periodic EBG structure with controllable propagation characteristics, which include the bandgap zone, the slow-wave factor, and the Bloch impedance for the guided wave, as well as the radiation main beam for the leaky wave, may be achieved. Propagation characteristics of finite-width conductor-backed coplanar waveguides with periodic electromagnetic bandgap cells Shau-Gang Mao Ming-Yi Chen doi:10.1109/TMTT.2002.804515 Microwave Theory and Techniques, IEEE Transactions on, Vol. 50, No. 11. (2002), pp. 2624-2628. 2008-05-09T23:55:59-00:00 2002 Microwave Theory and Techniques, IEEE Transactions on 50 11 2624 2628 ebg periodic propagation