A novel approach for the modelling of bow-tie microstrip antennas using FDTD method

A novel approach for the fast modelling of centre fed bow-tie microstrip antennas, using the modified locally conformal finite difference method (MCFDTD) coupled with the concept of symmetry plane, is presented. The use of MCFDTD enables us to choose number of cells along the antenna length and width independent of the antenna central width and the concept of symmetry plane reduces the problem space size to exactly half the otherwise required size. The suitability and accuracy of the method is demonstrated through comparison with experimental results.