Ultra-wideband antipodal Vivaldi antenna with high peak power

Abstract

The invention discloses an ultra-wideband antipodal Vivaldi antenna with high peak power, and belongs to the technical field of antennas. The antenna comprises a dielectric substrate, a microstrip balun, a first radiation patch and a second radiation patch, wherein the first radiation patch and the second radiation patch are arranged on the upper surface and the lower surface of the dielectric substrate in a mirror symmetry mode and are identical in structure. The structure of the radiation patch is enclosed by a first index curve segment, a transverse straight line segment, a longitudinal long straight line segment, a second index curve segment and a short longitudinal straight line segment W2 which are connected in sequence, and the middle part of the transverse straight line segment is provided with an inclined groove structure. According to the antenna, the unbalanced feed problem of coaxial feed is solved through the microstrip Balun; by adjusting the curvature of the exponential gradient curve and grooving the two sides of the radiation patch, more signal energy is radiated out along the slot line, and the radiation capability of the antenna is improved while the bandwidth is reduced; the size of the antipodal Vivaldi antenna can be effectively reduced, and the antipodal Vivaldi antenna has the advantages of simplicity and convenience in processing, compact structure, high voltage resistance and the like.

Description

technical field [0001] The invention belongs to the technical field of antennas, and in particular relates to an ultra-broadband anti-heel Vivaldi antenna with high peak power. Background technique [0002] Wireless short pulses have the advantages of good concealment, fast speed, strong penetrating ability and anti-interference ability, so they are widely used in military and civilian ultra-wideband communications. At present, commonly used high-power pulse antennas include biconical antennas, TEM horn antennas, and slot antennas. Since the 1960s, foreign scholars have begun extensive research on pulse antennas and their radiation theory, and have achieved certain research results. Typical antennas include dipole antennas, biconical dipole antennas, etc. A series of broadband dipole antennas, and later typical high-power pulse antennas such as horn antennas and transmitting surface antennas. In the 1970s, the rapid development of fast rising edge pulse forming technology,...

AI Technical Summary

Problems solved by technology

The China Academy of Engineering Physics has added a coaxial transition line and an output lens on the basis of the biconical antenna structure, but in general, domestic research on pulse technology and pulse antennas is not perfect and in-depth

The high-power ultra-wideband antennas that have been studied are basically either large in size and size, and relatively complex in structure, or they are non-planar structures that are difficult to integrate with miniaturized devices, or it is difficult to increase power capacity

Images