Propagation characteristics of finite-width conductor-backed coplanar waveguides with periodic electromagnetic bandgap cells

@article{citeulike:2782046, abstract = {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.}, author = {Mao, Shau-Gang and Chen, Ming-Yi }, booktitle = {Microwave Theory and Techniques, IEEE Transactions on}, citeulike-article-id = {2782046}, doi = {10.1109/TMTT.2002.804515}, journal = {Microwave Theory and Techniques, IEEE Transactions on}, keywords = {ebg, periodic, propagation}, number = {11}, pages = {2624--2628}, posted-at = {2008-05-10 00:58:16}, priority = {2}, title = {Propagation characteristics of finite-width conductor-backed coplanar waveguides with periodic electromagnetic bandgap cells}, url = {http://dx.doi.org/10.1109/TMTT.2002.804515}, volume = {50}, year = {2002} }

TY - JOUR ID - citeulike:2782046 TI - Propagation characteristics of finite-width conductor-backed coplanar waveguides with periodic electromagnetic bandgap cells T2 - Microwave Theory and Techniques, IEEE Transactions on JF - Microwave Theory and Techniques, IEEE Transactions on VL - 50 IS - 11 SP - 2624 EP - 2628 N2 - 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. KW - ebg KW - periodic KW - propagation AU - Mao, Shau-Gang AU - Chen, Ming-Yi PY - 2002/// UR - http://dx.doi.org/10.1109/TMTT.2002.804515 ER -