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Broadband micro microstrip antenna covering global satellite navigation system

A global satellite navigation and microstrip antenna technology, applied in the field of satellite navigation systems, can solve the problems of narrow working frequency band, incompatibility, large size, etc., and achieve the effect of reducing the overall size

Inactive Publication Date: 2016-05-25
CHENGDU TOPANTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to: aim at the technical problems of the existing satellite navigation system receiving terminal receiver antenna, narrow working frequency band, too large size, and incompatibility to receive signals of the four satellite navigation systems of GPS, GLONASS, Beidou and Galileo, to provide users with A miniature, light weight, easy to carry, the receiving frequency band is 1150-1700MH Z , good stability, a new broadband miniature microstrip antenna for a portable satellite navigation system terminal receiver that realizes one machine and one antenna covering the global GPS, GLONASS, Beidou, and Galileo four sets of satellite navigation signals

Method used

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  • Broadband micro microstrip antenna covering global satellite navigation system
  • Broadband micro microstrip antenna covering global satellite navigation system
  • Broadband micro microstrip antenna covering global satellite navigation system

Examples

Experimental program
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Embodiment 1

[0044] Embodiment 1 adopts the global satellite navigation system broadband miniature microstrip antenna of quasi-fractal first-level patch

[0045] The antenna is composed of a radiator 1, an exciter 2 and a printed plate 3 of a feeding network. Wherein: the dielectric constant Er=37 of the square ceramic dielectric substrate sheet 1-2 of radiator 1, side length W=18mm, thickness are 1mm; The length L of the square copper patch 1-1 of the device is 17 mm.

[0046] For the square copper patch 1-1 with a length of 17mm, the first-level patch of quasi-fractal structure is used. That is, from the center position of each side of the patch 1-1, respectively, along the direction of the vertical line from the side, extend to the left and right sides and engrave a pattern with equal width D 1 = 1mm and an engraved dividing line with an equal length of 6.5mm, the whole patch is engraved into four first-level copper patches with the same shape and size with a central conjoined structu...

Embodiment 2

[0049] Embodiment 2 adopts the global satellite navigation system broadband miniature microstrip antenna of quasi-fractal second-level patch

[0050] The antenna is composed of a radiator 1, an exciter 2 and a printed plate 3 of a feeding network. Its basic composition structure is basically the same as that of Example 1. The difference is that the square copper patch 1-1 printed on the top surface of the ceramic dielectric substrate sheet 1-2 is engraved in a second-level patch with a quasi-fractal structure. That is, for each of the four conjoined front, rear, left, and right patches in the first-level patch: to the adjacent two sides exposed outside, from the center position of each side along the vertical direction of the side, to the left and right sides Side extensions engraved with equal width D 1 = 1mm and equal length D 22 = two engraved dividing lines of 2 mm; for the adjacent two inner sides, the engraved positions correspond to the engraved dividing lines on the...

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Abstract

The invention discloses a broadband micro microstrip antenna covering a global satellite navigation system. The antenna comprises a radiator, an exciter and a feed network that are arranged integrally, wherein the radiator comprises a ceramic base material thin sheet, and a metal patch printed on the top surface of the thin sheet, wherein the metal patch and the base material thin sheet are arranged integrally; the radiator metal patch is designed in a manner that the front, back, left and right corners are in centered connection, and each piece on each corner has the four-corner center-connected shape, and the radiator metal patch has 16 secondary patches with the same shapes and same dimensions; four inverse L-shaped coupling probes are mounted in the exciter; and coupling spacings exist between the corresponding coupling probes and patches. The operating frequency of the antenna is expanded to be 1,150-1,700 MHz, so that the limit of 150MHZ of bandwidth of the existing microstrip antenna is overcome; the signal-receiving frequency bandwidth is expanded by 3.6-5.5 times; compared with the existing antenna dimension, the microminiaturization of the antenna is realized; and a test proves that the antenna can receive positioning signals emitted by the American GPS, the Russian GLONASS and the China BeiDou navigation system.

Description

technical field [0001] The invention belongs to the technical field of satellite navigation systems, and in particular relates to a miniature antenna covering a global satellite navigation system. Background technique [0002] The global satellite navigation system is called the "eyes" of human beings in space. Whichever country has these "eyes" will have the "trump card" to win the space war. Military needs and important commercial interests force the world's powers to Competition in this field is becoming increasingly fierce. [0003] The global satellite navigation system has the ability to provide all-time, all-weather, high-precision, continuous and real-time information services such as position, speed, and time for various carriers on the ground, sea, and air, and has the ability to target positioning, navigation, supervision, and management. Precise functions, global communications, aerospace, mining, rescue, national defense and security and other fields are insepa...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q13/08
CPCH01Q1/38H01Q13/08
Inventor 滕崴滕秀文
Owner CHENGDU TOPANTECH CO LTD
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