Least square collocation as applied to the analysis of strip transmission lines

The crude method of collocation applied for the solution of the boundary-value problems has been improved upon in a least square sense for solving complex problems in applied mechanics. In this letter, the least square collocation method is applied for the solution of the electrostatic field problem of the strip transmission line enclosed in a shielded box, which is a case of mixed boundary-value problem. Compared to the other previous numerical methods, this method is much less laborious, simpler, and faster, and the results agree well with those available in the literature.