Title :
Computation of microstrip S-parameters using a CG-FFT scheme
Author :
Basterrechea, José ; Cátedra, Manuel F.
Author_Institution :
Dept. de Electron., Cantabria Univ., Santander, Spain
fDate :
2/1/1994 12:00:00 AM
Abstract :
Several open microstrip structures have been analyzed by using the conjugate gradient fast Fourier transform (CGFFT) method to solve the electric field integral equation (EFIE). The analysis of the microstrip structure provides equivalent electric currents on the conducting patches. Extensive computation is performed in the spectral domain. Windowing techniques are used to improve the accuracy of the method. New models for the microstrip feed and load have been developed in combination with the CGFFT method. Results for the S-parameters are compared with the results of other methods and with measurements. The method appears to be accurate and computationally efficient
Keywords :
S-parameters; conjugate gradient methods; current distribution; fast Fourier transforms; integral equations; microstrip lines; spectral-domain analysis; CG-FFT scheme; Meander line structure; conducting patches; conjugate gradient fast Fourier transform method; electric field integral equation; equivalent current distribution; equivalent electric currents; microstrip S-parameters; microstrip feed; microstrip load; open microstrip structures; spectral domain; windowing techniques; Fast Fourier transforms; Feeds; Integral equations; Magnetic analysis; Microstrip antennas; Moment methods; Near-field radiation pattern; Nonhomogeneous media; Scattering parameters; Surface waves;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
