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Terahertz ultra-wideband light wall horn feed source and preparation method thereof

A horn feed and ultra-broadband technology, which is applied to waveguide horns, electrical components, and devices that enable antennas to work in different bands at the same time, can solve the problems of narrow frequency coverage, high processing costs, and high difficulty in processing horn feeds, and achieve Low processing cost, reduced input cost, easy processing effect

Pending Publication Date: 2021-12-21
NAT SPACE SCI CENT CAS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the disadvantages of high processing difficulty, high processing cost and too narrow coverage frequency band of existing horn feed sources

Method used

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  • Terahertz ultra-wideband light wall horn feed source and preparation method thereof
  • Terahertz ultra-wideband light wall horn feed source and preparation method thereof
  • Terahertz ultra-wideband light wall horn feed source and preparation method thereof

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Embodiment Construction

[0032] The terahertz ultra-broadband optical wall horn feed source of this embodiment is composed of an input section, an expansion section, a phase shift section and a radiation section, wherein the main transmission mode of the input section is TE 11 module, the function of the opening segment is to stimulate higher-order modules such as TE 12 Die, TE 13 Die, TM 11 Die and TM 12 mold. The function of the shifting segment is to adjust the phase between the modes. Due to TM 11 The mode only contributes to the E-plane pattern of the horn, and has no effect on the H-plane pattern, and through the correct design of the phase shift section, so in this embodiment, the horn mouth surface TE 11 and TM 11 The relative phase of the two modes reaches the optimum value, so that the E-plane and H-plane of the speaker are equalized. The function of the radiation section is to adjust the TE 11 Die, TE 12 Die, TE 13 Die, TM 11 Die and TM 12 The modulus ratio of the mode makes it ...

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Abstract

A terahertz ultra-wideband light wall horn feed source is provided by the invention, and is an integrated feed source, and the inner wall of the terahertz ultra-wideband light wall horn feed source is smooth. The light wall horn feed source is manufactured by adopting an electroforming process manufacturing method. A manufacturing method of the feed source comprises the following steps: 1) setting initial values for size parameters of the input section, the opening section, the phase shift section and the radiation section; 2) calculating a standing wave value of a light wall horn feed source by adopting a mode matching method; 3) optimizing the size of the light wall horn feed source by adopting a gradient descent method; 4) matching an aluminum male die inner core through a machining technology; 5) electroforming metal copper with the thickness of 3-6 mm on the surface of the male mold inner core; and 6) melting and demoulding the aluminum male mould inner core to obtain the terahertz ultra-wideband light wall horn feed source. The terahertz ultra-wideband light wall horn feed source has the advantages of easy processing and low processing cost, and is beneficial to popularization and application in the terahertz field. The central working bandwidth of the feed source can reach 93.9%, and the feed source is a light wall horn feed source with the widest bandwidth at present.

Description

technical field [0001] The invention belongs to the technical field of antennas, and in particular relates to a terahertz ultra-broadband optical wall horn feed source and a preparation method thereof. Background technique [0002] The terahertz horn feed is usually used as the irradiation device of the terahertz reflector antenna system, and is generally used in the fields of microwave remote sensing, terahertz guidance and 6G wireless communication. [0003] Due to the wide operating frequency band of the corrugated horn feed, good circular symmetry of the radiation pattern, and low cross-polarization, it can be widely used in terahertz remote sensing, terahertz security inspection, terahertz guidance and other fields. Patent CN108963462A discloses a method for manufacturing a terahertz corrugated feed horn. Its manufacturing principle is to convert the three-dimensional annular inner cavity microstructure of the feed horn, which is difficult to process, into a two-dimensi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q13/02H01Q5/25H01Q5/55
CPCH01Q13/025H01Q13/0283H01Q13/02H01Q5/25H01Q5/55
Inventor 刘广黄莹珠朱迪徐国庆石彬马静
Owner NAT SPACE SCI CENT CAS
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