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Double-slot double-frequeny-range sheared corrugated horn feed

A corrugated horn and dual-band technology, used in the field of measurement and control antennas and satellite communication antennas, can solve the problems of increasing the cross-polarization level of the horn and affecting the polarization purity of the horn, and achieve low side lobes and cross-polarization levels. Reduction of cross-polarization level and return loss level, the effect of small return loss

Inactive Publication Date: 2003-08-27
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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AI Technical Summary

Problems solved by technology

The generation of this mode seriously affects the polarization purity of the speaker, causing the cross-polarization level of the speaker to increase

Method used

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  • Double-slot double-frequeny-range sheared corrugated horn feed
  • Double-slot double-frequeny-range sheared corrugated horn feed
  • Double-slot double-frequeny-range sheared corrugated horn feed

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Embodiment Construction

[0019] refer to figure 1 , the present invention consists of a harmful high-order mode suppressor 1, a double-slot structure corrugated slot-mode converter 2, a double-slot deep corrugated structure frequency change transition section 3, a double-slot deep corrugated structure angle change transition section 4, and a double-slot deep corrugated structure radiation Segment 5, each component is sequentially connected by fasteners to form an integral corrugated horn feed. Double-slot structure corrugated slot-mode converter 2 adopts a periodic structure composed of a ring-loaded slot and a straight slot; double-slot deep corrugated structure frequency change transition section 3, double-slot deep corrugated structure angle change transition section 4, double-slot deep corrugated structure The structural radiation section 5 adopts a periodic structure composed of a deep straight groove and a shallow straight groove.

[0020] refer to figure 2 , the inner wall of the harmful hig...

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Abstract

The feed source of the corrugated horn comprises a harmful harmonic mode suppresser, the corrugation groove mode converter with double-groove structure, the frequency change and angle change transition section with double-groove deep corrugation structure and the radiation section with double-groove deep corrugation structure. The corrugation groove mode converter combines the harmful harmonic suppresser and the annular loading groove as well as the straight groove so as to reach the purpose of restraining excitation of the harmful harmonic mode, lowering reflectino loss and dual-band joint use. The invention possesses the features of rotation symmetry of the radiation pattern in two discrete frequency ranges, low electrical level of the side lobe and cross polarization, low reflection loss and high gain.

Description

technical field [0001] The invention relates to a dual-slot structure dual-band shared corrugated horn feed source in the field of satellite communication antennas and measurement and control antennas, which is especially suitable for dual-band shared satellite communication and communication with L / C, S / C, S / X and C / Ku Feed device with low side lobe, low cross polarization, low reflection loss and axisymmetric pattern in the measurement and control antenna. Background technique [0002] With the rapid development of satellite communication and measurement and control technology, the communication business volume is increasing day by day, and the working frequency band of some satellite transponders has been increased from the original single frequency band to dual frequency band, such as C / Ku, L / C, S / C and S / X and other dual frequency bands will also develop into multi-band in the near future. In order to increase the communication capacity and reduce the construction cos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q5/55H01Q13/02
Inventor 杜彪张文静杨可忠
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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