Loop coupling broadband miniaturized conical helical antenna

A helical antenna and helical wire technology, which is applied in the field of small broadband circularly polarized antennas, can solve the problems of reduced bandwidth, large antenna size, performance deterioration such as antenna bandwidth and efficiency, etc., and achieve the effect of improving impedance matching and reducing antenna size.

Active Publication Date: 2014-11-05
XIDIAN UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the operating frequency is low, the size of the antenna is still very large, and reducing the size of the antenna will directly lead to the deterioration of the circular polarization performance and the reduction of the bandwidth
[0005] Traditional antenna miniaturization methods, such as loading high dielectric constant media, meandering, etc., will deteriorate the bandwidth and efficiency of the antenna

Method used

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  • Loop coupling broadband miniaturized conical helical antenna
  • Loop coupling broadband miniaturized conical helical antenna
  • Loop coupling broadband miniaturized conical helical antenna

Examples

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Embodiment Construction

[0030] Please refer to Figure 1-Figure 5 , a kind of ring-coupled broadband miniaturized conical helical antenna of the present invention, it comprises double-armed conical helical radiator 1, double-armed conical helical radiator 1 adopts planar structure to be attached to the conical surface of dielectric support cone 4, double-armed conical helical The double-arm helix of the radiator 1 adopts the Archimedes equal-width line, the number of turns of the helix is ​​7 to 10 turns, and the end of the helix gradually becomes thinner; the dielectric support cone 4 adopts high-strength low dielectric constant Made of low-loss materials; the upper end of the double-armed conical helical radiator 1 is connected to the upper end of the feeding balun 3 through the feeding connector 2; the feeding balun 3 is embedded in the central axis position inside the dielectric support cone 4; The cable connector 7 is connected to the lower end of the feeding balun 3; the core wire of the cable ...

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Abstract

The invention discloses a loop coupling broadband miniaturized conical helical antenna which comprises a two-arm conical helical radiator, a medium supporting frustum, a feed balun, a feed connector, a cable joint, a coupling ring and a medium plate, wherein the two-arm conical helical radiator is attached to the surface of the medium supporting frustum, the feed balun is embedded into a center shaft in the medium supporting frustum, the two-arm conical helical radiator is connected with the upper end of the feed balun through the feed connector, the cable joint is connected with the lower end of the feed balun, the coupling ring is placed below the two-arm conical helical radiator and keeps a certain distance from the two-arm conical helical radiator, and the medium plate is arranged below the medium supporting frustum and plays a role in supporting the whole antenna. Miniaturization, wide broadband and high efficiency of the helical antenna can be achieved.

Description

technical field [0001] The invention relates to a ring-coupled broadband miniaturized conical helical antenna, in particular to a small broadband circularly polarized antenna used as an earth terminal in satellite communication. technical background [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 servic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/36
Inventor 陈曦傅光惠朝辉杨龙
Owner XIDIAN UNIV
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