The TEM horn antennas are widely used as the UWB antenna.The geometry of the conventional TEM horn antenna is symmetrical.The size, shape and height of the two plates are equal.The TEM double-ridged horn antenna that can enhance bandwidth is an improvement of the TEM horn antenna.In this paper, a TEM double-ridged horn antenna with diffident height, has been designed to improve the impulse radiation performance.This designed antenna with great low-frequency result provides higher radiation efficiency, less ...