1. Hestenes, M. R. and E. Steifel, "Method of Conjugate Gradients for solving linear systems," J. Res. Nut. Bur. Standard., Vol. 49, No. 6, 409-436, Dec. 1952. Google Scholar
2. Hestenes, M. R., Conjugate Direction Methods in Optimization, New York: Springer-Verlag, 1980.
3. Strang, G., Introduction to Applied Mathematics, Cambridge, Mass.: Wellesley-Cambridge, 1980.
4. Brigham, E. O., The Fast Fourier Bansform and its Applications, Englewood Cliffs, New Jersey: Prentice Hall, 1988.
5. Sarkar, T. K., E. Arvas, and S. M. Rao, "Application of FFT and the Conjugate Gradient method for the solution of electromagnetic radiation from electrically large and small conducting bodies," IEEE Trans. Antennas Propagat., Vol. AP-34, 635-640, May 1986. Google Scholar
6. Bojarski, N. N., "k-Space formulation of the electromagnetic scattering problem," Tech. Report, AFAL-TR-71-5, Mar. 1971. Google Scholar
7. van den Berg, P. M., "Iterative computational techniques in scattering based upon the integrated square error criterion," IEEE Trans. Antennas Propagat., Vol. AP-32, No. 10, 1063-1071, Oct. 1984. Google Scholar
8. Borup, D. and O. P. Gandhi, "Fast Fourier Transform method for calculation of SAR distributed in finely discretized inhomogeneous models of biological bodies," IEEE Trans. Microwave Theory Tech., Vol. MTT-32, Apr. 1984. Google Scholar
9. Peterson, A. F., "An analysis of the spectral iterative techniques for electromagnetic scattering from individual and periodic structures," Electromagnetics, Vol. 6, 255-276, 1986. Google Scholar
10. Christodoulou, C. G. and J. F. Kaufman, "On the electromagnetic scattering from infinite rectangular grids with finite conductivity," IEEE Trans. Antennas Propagat., Vol. AP-34, 144-154, 1986. Google Scholar
11. Peters, T. J. and J. L. Volakis, "Application of a Conjugate Gradient FFT method to scattering from thin planar material plates," IEEE Trans. Antennas Propagat., Vol. AP-36, 518-526, Apr. 1988. Google Scholar
12. Barkeshli, K. and J. L. Volakis, "Improving the convergence rate of the CGFFT method using subdomain basis functions," IEEE Trans. Antennas and Propagat., Vol. AP-37, 893-900, July 1989. Google Scholar
13. Shen, C. Y., K. J. Glover, M. I. Sancer, and A. D. Varvatsis, "The Discrete Fourier Transform method of solving differentialintegral equations in scattering theory," IEEE Trans. Antennas and Propagat., Vol. AP-37, 1032-1040, Aug. 1989. Google Scholar
14. Catedra, M. F., J. G. Cuevas, and L. Nuno, "A scheme to analyze conducting plates of resonant size using the Conjugate Gradient method and the Fast Fourier Transform," IEEE Trans. Antennas and Propagat., Vol. AP-36, 1744-1752, Dec. 1988. Google Scholar
15. Peters, T. J. and J. L. Volakis, "On the formulation and implementation of a Conjugate Gradient FFT method," Journal of Electromagnetic Waves and Applications, Vol. 3, No. 8, 675-696, 1989. Google Scholar
16. Bokhari, S. A. and N. Balakrishnan, "A method to extend the spectral iteration technique," IEEE Trans. Antennas Propagat., Vol. AP-34, 51-57, Jan. 1986. Google Scholar
17. Harrington, R. F., Field Computation by Moment Methods, Malabay, Florida: R. E. Krieger Publishing Co., 1968.
18. Richmond, J. H., "Radiation and scattering by thin wire structures in a homogeneous conducting medium," IEEE Trans. Antennas and Propagat., 365, Mar. 1974. Google Scholar
19. Stutzman, W. L. and G. A. Thiele, Antenna Theory and Design, New York: John Wiley, ch. 7, 1981.
20. Senior, T. B. A., "Combined resistive and conductive sheets," IEEE Trans. Antennas and Propagat., Vol. AP-33, 577-579, May 1985. Google Scholar
21. Harrington, R. F., Time Harmonic Electromagnetic Fields, New York: McGraw Hill, 1969.
22. Ricoy, M. A., S. A. Kilberg, and J. L. Volakis, "Simple integral equations for two-dimensional scattering with further reduction in unknowns," IEE Proceeding-H, Vol. 136, 298-304, Aug. 1989. Google Scholar
23. Newman, E. and D. M. Pozar, "Electromagnetic modelling of composite wire and surface geometries," IEEE Trans. Antennas and Propagat., Vol. AP-26, 784-789, Nov. 1978. Google Scholar
24. Haupt, R. and V. V. Liepa, "Synthesis of tapered resistive strips," IEEE Trans. Antennas and Propagat., Vol. AP-35, 1217-1225, Nov. 1987. Google Scholar
25. Peters, T. J., "Computation of the Scattering by Planar and Non-Planar Plates Using a Conjugate Gradient-FFT method,", Ph.D. Dissertation, Univ. of Michigan, Ann Arbor, MI, 1988. Google Scholar
26. Karp, S. N. and L. Karel Jr., "Generalized impedance boundary conditions with application to surface wave structures," Electromagnetic Wave Theory, 479-483, Permagon: New York, 1965. Google Scholar
27. Senior, T. B. A. and J. L. Vdakis, "Derivation and application of a class of generalized boundary conditions," IEEE Trans. Antennas and Propagat., Vol. AP-37, 1566-1572, Dec. 1989. Google Scholar
28. Harrington, R. F. and J. R. Mautz, "A generalized network formulation for aperture problems," IEEE Trans. Antennas and Propagat., Vol. AP-24, 870-873, Nov. 1976. Google Scholar
29. Volakis, J. L., T. B. A. Senior, and J. M. Jin, "Derivation and application of a class of generalized boundary conditions --- II," Univ. of Michigan Radiation Laboratory Tech. Report., 025921-T-1, prepared under NASA grant NAG-2-541, Feb. 1989. Google Scholar
30. Barkeshli, K. and J. L. Volakis, "TE scattering by a two dimensional groove in a ground plane," IEEE Trans. Antennas and Propagat., Vol. AP-38, 1421-1428, Sept. 1990. Google Scholar
31. Barkeshli, K. and J. L. Volakis, "A vector concurrent application of a Conjugate Gradient FFT algorithm to electromagnetic radiation and scattering problems," IEEE Trans. on Magnetics, Vol. 25, 2892-2894, July 1989. Google Scholar
32. Temperton, C., "Implementation of a self-sorting in-place prime factor FFT algorithm," J. Comput. Phys., Vol. 58, 283-299, 1985. Google Scholar
33. Rothweiler, J. H., "Implementation of the in-order prime factor transform for variable sizes," IEEE Trans. Acoust., Speech, Signal Processing, Vol. ASSP-30, No. 1, 105-107, Aug. 1982. Google Scholar
34. Burrus, C. S. and P. W. Eschenbacher, "An in-place, in-order prime factor FFT algorithm," IEEE Trans. Acoust., Speech, Signal Processing, Vol. ASSP-29, No. 4, 806-817, Aug. 1981. Google Scholar
35. Johnson, H. W. and C. S. Burrus, "Large DFT Modules: 11, 13, 17, 19 and 25," Technical Report No. 8105, Department of Electrical Engineering, Rice University, Houston, Texas, 1981. Google Scholar
36. Cátedra, M. F., E. Gago, and L. Nano, "A numerical scheme to obtain the RCS of three dimensional bodies of resonant size using the Conjugate Gradient method and FFT," IEEE Trans. Antennas and Propagat., Vol. AP-37, 528-537, May 1989. Google Scholar
37. Su, C.-C., "Electromagnetic scattering by a dielectric body with arbitrary inhomogeneity and anisotropy," IEEE Trans. Antennas and Propagat., Vol. AP-37, 384-389, Mar. 1989. Google Scholar
38. Peterson, A. F. and R. Mittra, "Iterative-based computational methods for electromagnetic scattering from individual or periodic structures," IEEE J. Oceanic Engineering, Vol. OE-12, 458-465, Apr. 1987. Google Scholar
39. Chan, C. H., "Investigation of Iterative and Spectral Galerkin Techniques for solving Electromagnetic Boundary Value Problems,", Ph.D. Dissertation, Univ. of Illinois, Urbana, 1987. Google Scholar
40. Chan, C. H. and R. Mittra, "Some recent developments in iterative techniques for solving electromagnetic boundary value problems," Radio Sci., Vol. 22, No. 6, 929-934, Nov. 1987. Google Scholar
41. Jin, J. M. and J. L. Volakis, "Electromagnetic scattering by a perfectly conducting patch array on a dielectric slab," IEEE Trans. Antennas and Propagat., Vol. AP-38, 556-563, Apr. 1990. Google Scholar
42. Montgomery, J. P. and K. R. Davey, "The solution of planar periodic structures using iterative methods," Electromagnetics, Vol. 5, No. 2-3, 209-235, 1985. Google Scholar
43. Kastner, R. and N. Herscovici, "A Concise Conjugate Gradient Computation of Plate Problems with Many Excitations,", 1989 APS/URSI Symposium, San Jose, CA. Google Scholar
44. Jin, J. M. and J. L. Volakis, "TM scattering by an inhomogeneous filled aperture in a thick conducting plane," IEE Proceeding-H, Vol. 137, 153-159, June 1990. Google Scholar
45. Collins, J. D., J. L. Volakis, and J. M. Jin, "A combined finite element-boundary integral formulation for solution of two-dimensional scattering problems via CGFFT," IEEE Trans. Antennas Propagat., Nov. 1990. Google Scholar