(1) I.J. Bahl and P. Bhartia, "Microstrip Antenna,Artech House,London,1 980.
(2) K.R Carver and J.W Mink, IEEE Trans. Antenna and Propagation AP-29,2 (1981).
(3) C.A. Balanis, Antenna Theory Analysis and Design, John Willy and Sons, New York, 1982.
(4) C.M. Krowne, Dielectric and width effect on H-plane and E-plane coupling between rectangular microstrip antennas, IEEE Trans Antenna and Propagate. Vol. 31, pp. 39-47,1983.
(5) D.M. Pozar and V.Sanches, "Magnetic tuning of microstrip antenna on ferrite substrate", Electron.Lett. vol.24, pp.729-731, 1988.
(6) D.M. Pozar, "Radiation and scattering characteristics of microstrip antennas on normally biased ferrite substrate", IEEE Trans. Antennas Propagat., vol. 40, no. 9, pp. 1084-10992, 1992.
(7) H.Y.D. Yang, Characteristics of switchable ferrite microstrip antenna', IEEE Trans. Antenna Propag., vol.44, no.8, pp.1127-1132, 1996.
(8) D.M. Pozar, "Microwave Engineering", Addison Wesley Publishing Company,Reading, MA, 1996.
(9) Li. Zhifang, J.L. Volakis, "Optimization of patch antennas on ferrite substrate using the finite element methods", Proc. of the 1988 IEEE Antenna and Prop. Society Int.S ymposium, Atlanta, Georgia, vol.1, pp. 244-247, 1998.
(10) k.K. Verma and K.R. Soni, "Theoretical study of two element array of equilateral triangular microstrip antenna on ferrite", Pramana J.of Phys., vol.65, No. 3, 2005.