5.12 Design an air-filled rectangular waveguide to be used for transmission of electromagnetic power at 2.45 GHz. This frequency should be at the middle of the operating frequency band. The

design should also allow maximum power transfer without sacrificing the operating bandwidth. Find the maximum power the waveguide can transmit. Use a safety factor of 10. Neglect ohmic loss. The breakdown E in air is assumed to be 2 x 10^6 V/m.