New periodic-loaded electromagnetic bandgap coplanar waveguide with complete spurious passband suppression

10 December 2002

journal article
research article
Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Microwave and Wireless Components Letters

Vol. 12 (11) , 435-437
https://doi.org/10.1109/LMWC.2002.805536

Abstract

In this work, coplanar waveguides (CPW) periodically loaded with shunt capacitances and periodically perturbed by varying the distance between the central strip (of constant width) and ground planes are studied. It is demonstrated that the multiple spurious passbands above the Bragg frequency, inherent to the presence of the reactive elements, can be completely and efficiently rejected by means of very simple geometry perturbation. This result is in contrast to previous works, where the rejection of multiple frequencies requires complex layout patterns and reveals that the elimination of spurious frequency bands in periodic loaded CPWs cannot be merely estimated from the Fourier transform of the perturbation geometry.

This publication has 11 references indexed in Scilit:

Monolithic coplanar transmission lines loaded by heterostructure barrier varactors for a 60 GHz tripler
IEEE Microwave and Wireless Components Letters, 2001
Miniature low-loss CPW periodic structures for filter applications
IEEE Transactions on Microwave Theory and Techniques, 2001
A novel PBG coplanar waveguide
IEEE Microwave and Wireless Components Letters, 2001
New microstrip "Wiggly-Line" filters with spurious passband suppression
IEEE Transactions on Microwave Theory and Techniques, 2001
Uniplanar one-dimensional photonic-bandgap structures and resonators
IEEE Transactions on Microwave Theory and Techniques, 2001
A uniplanar compact photonic-bandgap (UC-PBG) structure and its applications for microwave circuit
IEEE Transactions on Microwave Theory and Techniques, 1999
Broad-band power amplifier using dielectric photonic bandgap structure
IEEE Microwave and Guided Wave Letters, 1998
Theory of Nonuniform Waveguides: the cross-section method
Published by Institution of Engineering and Technology (IET) ,1998
Iterative solution to the Gel'Fand-Levitan-Marchenko coupled equations and application to synthesis of fiber gratings
IEEE Journal of Quantum Electronics, 1996
28-39 GHz distributed harmonic generation on a soliton nonlinear transmission line
IEEE Microwave and Guided Wave Letters, 1991