Abstract:
This paper analyzes the transmission characteristics of rectangle dielectric wave guide by using well known EDC approximative method. The eigen function of transmission parameter is deduced from boundary condition and is solved with dichotomy method. The graphs of phase velocity, energy distribution and the relative size of dielectric rod are given. Then it analyzes the feasibility for rectangle dielectric antenna used in time domain. It presents how to choose antenna's parameter and size. In the end, this paper makes numerical simulation by using FD TD method. It analyzes how the antenna's size, length and taper affect the transmission and radiation characteristics. The results show that rectangle dielectric antenna is likely to be used in time domain.