Title :
Dispersion characteristics of grooved microstrip line (GMSL)
Author :
Chamma, W. ; Gupta, N. ; Shafai, L.
Author_Institution :
Microwave Anal. & Countermeasures Group, Defence Res. Establ., Ottawa, Ont., Canada
fDate :
4/1/2000 12:00:00 AM
Abstract :
In this paper, the method of lines and finite-difference time-domain numerical methods are used to investigate the field distribution, dispersion, and impedance characteristics of the grooved microstrip line (GMSL) structure. It is found that the GMSL is less dispersive compared to conventional microstrip lines, and also provides a wide range of characteristic impedance values as a function of the groove width. Increasing the groove width of the microstrip structure can also reduce the dielectric and conductor losses of the GMSL
Keywords :
dielectric losses; dispersion (wave); finite difference time-domain analysis; method of lines; microstrip lines; microwave integrated circuits; characteristic impedance values; conductor losses; dielectric losses; dispersion characteristics; field distribution; finite-difference time-domain numerical methods; groove width; grooved microstrip line; impedance characteristics; method of lines; Conductors; Dielectric loss measurement; Dielectric losses; Dielectric substrates; Dispersion; Finite difference methods; Frequency; Impedance; Microstrip antennas; Time domain analysis;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
