Helical antenna

A helical antenna and antenna technology, which is applied in the field of satellite navigation equipment, can solve the problems such as the inability to meet the requirements of antenna miniaturization and the large size of the helical antenna.

Active Publication Date: 2016-05-11
SHANGHAI HAIJI INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present invention provides a helical antenna, which is used to solve the problem that the helical antenna in the prior art has a large size and cannot meet the miniaturization requirements of the antenna

Method used

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Embodiment Construction

[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments . Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] The embodiment of the present application provides a helical antenna, which can be applied to GPS (Global Positioning System, Global Positioning System), GLONASS (Global Navigation Satellite System, Global Navigation Satellite System), GALILEO (Galileo Satellite Navigation System, Galileosatellitenavigationsystem) and BDS (Beidou Satellite Navigation System, BeiDouNavigationSatellite) and other satellite navigation and positioning sy...

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Abstract

The invention relates to the field of antennas and discloses a helical antenna for solving the problem in the prior art that the requirement of antenna miniaturization cannot be met due to the relative large size of the helical antenna. The helical antenna provided by the invention comprises a printing circuit PCB board, at least one medium cylinder fixed on the PCB board, a flexible and thin medium substrate surrounding the side surface of the medium cylinder, and at least one metal arm fixed on the flexible and thin medium substrate. The at least one metal arm includes a main metal piece and an auxiliary metal piece, one end of the main metal piece is connected with a signal line of the PCB board, and the other end is bent towards the metal arm around the spiral direction of the medium cylinder to form a non-sealed shape. One end of the auxiliary metal piece is connected with the ground, and the other end is connected with the main metal piece.

Description

technical field [0001] The invention relates to the technical field of satellite navigation equipment, in particular to a helical antenna. Background technique [0002] The satellite navigation system develops rapidly and is widely used in various fields such as navigation, communication, surveying and mapping, timing, and detection, and plays an important role in daily life and economic construction. The satellite navigation antenna is an important part of the terminal equipment of the satellite navigation system, and its performance will directly affect the performance of the system, so the research on the navigation antenna is of great significance. [0003] At present, there are two main types of commercially available antennas, namely ceramic patch antennas and helical antennas. The main advantages of the former are small size, low cost, and easy integration. The main disadvantages are narrower axial ratio bandwidth and poor antenna characteristics at low elevation ang...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/36H01Q1/48H01Q1/50
CPCH01Q1/36H01Q1/48H01Q1/50
Inventor 李炳槐胡朝斌吕波罗家闹易少华吉青
Owner SHANGHAI HAIJI INFORMATION TECH
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