Broadband wire source for planar waveguide CTS antenna feed device

Abstract

The invention discloses a broadband wire source for a planar waveguide CTS antenna feed device. The broadband wire source comprises an H-plane sectorial horn antenna, a bias parabolic reflection plane and a flat waveguide. The H-plane sectorial horn antenna and the bias parabolic reflection plane are arranged inside the flat waveguide, and the phase center of the H-plane sectorial horn antenna is arranged at the focus of the bias parabolic reflection plane. According to the invention, cylindrical waves are converted into plane waves, the plane waves are generated by using a reflector antenna principle, and the horn antenna is arranged at the focus of a paraboloid reflector so that a horn antenna radiation field passes through the reflector and generates the plane wave with equal amplitude and the same phase at the caliber surface of the reflector. The working frequency band is wide; the feed source shielding is eliminated and the caliber efficiency is enhanced through a bias; the structure is enclosed so that the edge diffraction effects of a conventional bias paraboloid are removed; and the structure is simple so that adjusting and assembling are easy, late use and maintenance are convenient, and the problem can be solved that the ideal wire source with equal amplitude and the same phase, generated by a conventional waveguide CTS antenna, cannot be realized in an actual project.

Description

technical field [0001] The invention belongs to the technical field of antennas and feed sources, and in particular relates to a broadband line source used for a planar waveguide CTS antenna feed device. Background technique [0002] At present, the electronically scanned antenna is facing great challenges, especially its high cost input in the military and commercial markets, and the realization of a high-efficiency, low-cost planar electronically scanned antenna in the X-band is a very difficult task, and, In the military and commercial markets, the high sensitivity and multi-purpose characteristics and functions of the electronically scanned antenna with low profile radiation aperture are also very important. Therefore, a low-cost electronically scanned antenna that can be used in the military and commercial fields is proposed Technology is a mission-critical, desired characteristics include: high efficiency; high gain; light weight, low mechanical profile; high-precision...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the embodiment of the present invention is to provide a broadband line source for the feeding device of the planar waveguide CTS antenna, which aims to solve the problem of generating an ideal broadband line source with equal amplitude and phase in the actual project existing in the existing waveguide CTS antenna. Problems that cannot be achieved in

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