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Navigation device

A technology of a navigation device and a metal sheet is applied in the field of navigation, which can solve the problems of low sensitivity and low working efficiency of a GPS navigation device, and achieve the effects of low working frequency, enhanced signal receiving sensitivity, and miniaturization.

Active Publication Date: 2015-04-22
KUANG CHI INST OF ADVANCED TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to improve the low sensitivity and low working efficiency of the GPS navigation device, so a design of high sensitivity and high efficiency GPS navigation device is proposed

Method used

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Embodiment Construction

[0032] Metamaterials are artificial metal conductive sheets with a certain pattern and shape arranged on a dielectric substrate in a specific way. The different pattern shapes and arrangements of the artificial metal conductive sheets make the metamaterials have different dielectric constants and different magnetic permeability, so that the metamaterials have different electromagnetic responses. Wherein, when the artificial metal conductive sheet is in the resonant frequency band, the artificial metal conductive sheet will exhibit a high degree of dispersion characteristics. The so-called high dispersion characteristics refer to the impedance, capacitive inductance, and equivalent dielectric constant of the artificial metal conductive sheet. And the magnetic permeability will change drastically with the frequency.

[0033] The present invention utilizes the above principles to design a multi-mode working antenna device. It attaches the conductive sheet to the dielectric subst...

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Abstract

The invention discloses a navigation device, which comprises an antenna, wherein the antenna comprises a dielectric substrate, a first metal sheet and a second metal sheet which are attached to the dielectric substrate, a first feeder line and a second feeder line which encircle the first metal sheet, and a third feeder line and a fourth feeder line which encircle the second metal sheet, wherein a first micro slot structure and a second micro slot structure which are asymmetric with each other are hollowed out in the first metal sheet, so that a first metal route is formed on the first metal sheet; a third micro slot structure and a fourth micro slot structure which are asymmetric with each other are hollowed out in the second metal sheet, so that a second metal route is formed on the second metal sheet; the first feeder line is electrically connected with the third feeder line; the second feeder line is electrically connected with the fourth feeder line; and a space for embedding an electronic element is formed in the antenna. Due to the space for embedding the electronic element is formed in the antenna, various optimizations can be made for a transmitting and receiving circuit of the antenna by changing the performance of the embedded electronic element, and the antenna meeting the requirements on the applicability and the universality can be designed.

Description

technical field [0001] The invention relates to the field of navigation, in particular to a GPS navigation device. Background technique [0002] With the rapid progress of the Global Positioning System (GPS) technology and the popularization of applications, the most important thing of the Global Positioning System is to position and navigate moving objects such as ships, cars, and airplanes. At present, the Continuous Operational Reference System (CORS) established by using the real-time Kinematic (RTK) technology of multi-base station network has become one of the development hotspots of urban GPS applications. As we all know, the civilian Global Positioning System (Global Positioning System) operating frequency is 1575.42MHZ, and the electromagnetic wave signal is a circular polarized wave, so the navigation instrument needs to be equipped with a high-efficiency circular polarized wave antenna to ensure the reception of navigation satellites Electromagnetic wave signal. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S19/36H01Q1/22H01Q1/38H01Q1/50H01Q5/10H01Q5/28H01Q5/335
Inventor 刘若鹏徐冠雄杨松涛
Owner KUANG CHI INST OF ADVANCED TECH