A Common Aperture Tri-band Multi-mode Horn Antenna

Abstract

The invention relates to a common-caliber three-frequency multi-mode horn antenna, which belongs to the field of electronic science and technology. It consists of OMT, corrugated excitation section, optical wall horn section, and L-band feed section. The orthogonal mode coupler is located at the lowermost end of the antenna; the corrugated excitation segment is located above the OMT, the input end of the corrugated excitation segment is connected to the output end of the OMT, and the output port of the corrugated excitation segment is connected to the input end of the optical wall horn segment; the optical wall The horn section is located above the corrugated excitation section; the L-band feeding section is connected to the side wall of the light-wall horn section through a coupling port; the present invention adopts an orthogonal mode coupler to realize the S and C-band feeding, wherein the C-band passes through the straight-through port. Feeding, the S-band is fed through the coupling port on the sidewall, and the polarizations of the two ports are orthogonal. The high-order mode of the S / C band is excited by the partial corrugated excitation section with double groove depth, and the optical wall horn section is connected to form a multi-mode horn, which improves the polarization isolation of the S / C band and the beam equalization of the pattern, and reduces the In-band gain fluctuation, the performance is better than the optical arm horn antenna.

Description

technical field [0001] The invention belongs to the field of electronic science and technology, and in particular relates to a common-aperture three-frequency multi-mode horn antenna and a wireless communication system thereof. It can realize multi-channel high polarization isolation communication at the same time, and reduce the interference between communication systems. It can be applied to multi-band high polarization isolation wireless communication systems, such as satellite communication systems. Background technique [0002] With the development of electronic technology, the requirements for space utilization of electronic components and supporting equipment are getting higher and higher. Realizing multiple polarizations or multiple frequency bands through a single antenna can effectively increase channel capacity and reduce system footprint. At present, the multi-frequency forms of the horn antenna generally include the nested type and the common port type. In th...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the complex structure of the multi-band full-corrugated horn, the present invention proposes a common-aperture three-band multi-mode horn antenna

Images