1. Garg, R., Bhartia, P., Bahl, I., and Ittipiboon, A.: ‘Microstrip antenna design handbook’, (Artech House, Boston, London 2001)
2. Bhalla, R.: ‘Analysis of broadband and dual band microstrip patch antennas’, August, 2001, MSc, University of Manitoba, Winnipeg, Canada
3. Joannopoulos, J.D., Meade, R.D., and Winn, J.N.: ‘Photonic crystals molding the flow of light’, (Princeton University Press, Princeton, NJ 1995)
4. High-impedance electromagnetic surfaces with a forbidden frequency band