Convolutional Perfectly Matched Layer Absorbing Boundary Condition of the Finite-Difference Time-Domain Method for the Microstrip Antenna

The Convolutional Perfectly Matched Layer (CPML) for Finite-Difference Time-Domain (FDTD) was used in the analysis of the rectangular micro strip antenna and the time domain and frequency domain simulation results were given. Compared with traditional implementations of the PML, this method has a clear physical concept and is simple in calculation. What´s more, it did not require the fields to be split. So this method decreases the computational memory and time requirements. Numerical results demonstrated that this method is effective.