A full-wave spectral-domain analysis of periodically nonuniform coplanar waveguide

✍ Scribed by T. Q. Deng; X. K. Kang; M. S. Leong; P. S. Kooi; T. S. Yeo

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 222 KB
• Volume: 15
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/(sici)1098-2760(199705)15:1<59::aid-mop19>3.0.co;2-3

✦ Synopsis

A full-wa¨e spectral-domain technique is de¨eloped to in¨estigate the characteristics of periodically nonuniform coplanar wa¨e-( ) guides CPW . The Floquet theorem is employed to express all the field quantities in terms of the spatial harmonics, so that the boundary-¨alue problem of a periodically nonuniform coplanar wa¨eguide can be treated similarly to that of the uniform one. The Galerkin method in the Fourier spectral domain with a set of appropriate basis functions is used to obtain numerical results for characteristics of the sinusoidal-shaped coplanar wa¨eguides. The filterlike propagation property of the periodic structure is exploited in the realization of a band-stop filter.