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Dispersion characteristics of fundamental and higher order modes of cylindrical microstrip lines with a cover layer
Author(s) -
Lee ChingHer,
Hsu ChungI G.
Publication year - 1997
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/(sici)1098-2760(19971220)16:6<385::aid-mop16>3.0.co;2-#
Subject(s) - cover (algebra) , microstrip , dispersion (optics) , materials science , layer (electronics) , acoustics , order (exchange) , optics , physics , engineering , composite material , mechanical engineering , business , finance
The dispersion characteristics of the effective dielectric constant and the characteristic impedance of a superstrate‐loaded cylindrical microstrip line are examined. Numerical results of fundamental and higher order modes are computed using a spectral‐domain integral equation formulation in conjunction with the method of moments. Entire‐domain sinusoidal functions are employed for microstrip current expansions to obtain convergent results with relatively few terms. The results show that the effects of the cover layer on the dispersion curves for the narrower strip are more appreciable than for the wider strip. © 1997 John Wiley & Sons, Inc. Microwave Opt Technol Lett 16: 385–389, 1997.