1 R. Garg, "Microstrip antenna design handbook" Arthch House 493-498, 2000.
2 R. Garg, "Microstrip antenna design handbook" Arthch House 525-530, 2000.
3 Constantine A. Balanis, "Antenna Theory analysis and design" John Wiley & Sons 247-328, 1997.
4 Chujo. W, "A two-layer self-diplexing antenna using a circularly polarized ring patch antenna" 1 : 338-341,
1 R. Garg, "Microstrip antenna design handbook" Arthch House 493-498, 2000.
2 R. Garg, "Microstrip antenna design handbook" Arthch House 525-530, 2000.
3 Constantine A. Balanis, "Antenna Theory analysis and design" John Wiley & Sons 247-328, 1997.
4 Chujo. W, "A two-layer self-diplexing antenna using a circularly polarized ring patch antenna" 1 : 338-341,