High-efficiency broadband miniaturized conical spiral antenna

Abstract

The invention discloses a high-efficiency broadband miniaturized conical spiral antenna. The high-efficiency broadband miniaturized conical spiral antenna comprises a four-arm conical spiral radiator; a medium support frustum, wherein the four-arm conical spiral radiator is attached to the surface of the medium support frustum; a medium plate which is arranged at the bottom of the medium support frustum for supporting the whole antenna; a broadband plane feed which employs a self-phase-shift serial feed structure and is printed on the upper surface of the medium plate; four feed connecting pieces which connect the four-arm conical spiral radiator with the corresponding four branch ports of the plane feed; eight pads which are printed on the upper surface of the medium plate for fixing the feed connecting sheets; four impedance adjusting sheets which are disposed at the initial end of the four-arm conical spiral radiator for adjusting the input impedance of the four-arm conical spiral radiator; and a radio frequency joint connected with the plane feed. The high-efficiency broadband miniaturized conical spiral antenna can realize a miniaturized, broadband and high-efficiency design of the spiral antenna.

Description

technical field [0001] The invention belongs to the technical field of satellite communication, in particular to a high-efficiency broadband small conical helical antenna. Background technique [0002] Satellite communication is an advanced mobile communication technology widely used at present, which can solve communication problems in areas that ground mobile communication cannot cover. The satellite communication system is a communication system that uses satellites as relay stations to provide users with data services. The satellites used can be either geostationary orbit satellites or non-geostationary orbit satellites, such as low-altitude earth orbit satellites, medium-altitude earth orbit satellites satellites and highly elliptical orbit satellites, etc. The satellite communication system can expand the business coverage of mobile communication. In addition to providing conventional mobile communication services, it can also provide communication services to various...

AI Technical Summary

Problems solved by technology

[0006] In view of the above problems, the invention patent 201410382212.0 provides a design method for a broadband miniaturized conical helical antenna, but the special structure of the antenna makes the antenna pattern have a large front-to-back ratio, which is an unfavorable factor in actual use and will cause electromagnetic A series of issues such as compatibility and electromagnetic interference

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