1. Garg, R., Bhartia, P., Bahl, I., and Ittipiboon, A.: ‘Microstrip antenna design handbook’, (Artech House 2001)
2. James, J.R., Hall, P.S., and Wood, C.: ‘Microstrip antenna theory and design’, (IEE London 1981)
3. Bhartia, P., Rao, K.V.S., and Tomar, R.S.: ‘Millimeter-wave microstrip and printed circuits antenna’, (Artech House 1991)
4. Surface-Micromachined Dual Ka-Band Cavity Backed Patch Antenna