Microstrip dispersion

Author:

1 January 1972

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in Proceedings of the IEEE

Vol. 60 (1) , 144-146
DOI:10.1109/proc.1972.8581

Abstract

Microstrip transmission lines used in microwave integrated circuits are dispersive. The dispersion of the lines is fully characterized by the frequency-dependent normalized phase velocity VP which is equal to the ratio of guide wavelength λgto free-space wavelength λ0. An approximate equation is given for the normalized phase velocity VP and for the frequency-dependent line impedance Z for standard microstrip transmission lines. Comparison with available experimental data and computed data shows that the error of the approximation is less than 3 percent for microstrip transmission lines commonly used in engineering applications.

Keywords

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