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Double-frequency Beidou navigation antenna with wide-axis-ratio wave beam effect

A Beidou Navigation and Axial Ratio technology, applied in the direction of antenna, antenna grounding device, antenna grounding switch structure connection, etc., can solve the problems of narrow antenna axis ratio beam width, high profile, complex structure, etc., to achieve stable gain and simple antenna structure , the effect of small size

Active Publication Date: 2019-03-12
DALIAN MARITIME UNIVERSITY +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are not many research results on single-frequency or dual-width axial ratio beam circular polarization technology, and the existing research has not achieved ideal results. Often the antenna has narrow axial ratio beam width, complex structure, high profile, and processing Disadvantages such as difficulty or high application cost

Method used

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  • Double-frequency Beidou navigation antenna with wide-axis-ratio wave beam effect
  • Double-frequency Beidou navigation antenna with wide-axis-ratio wave beam effect
  • Double-frequency Beidou navigation antenna with wide-axis-ratio wave beam effect

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Embodiment Construction

[0026] In order to make the technical solutions and advantages of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the drawings in the embodiments of the present invention:

[0027] like figure 1 A dual-frequency Beidou navigation antenna with a wide axial ratio beam shown includes a laminated patch antenna 1, a dual-frequency feed network 2, a feed probe 3, and a short-circuit probe 4; the structure of the laminated patch antenna 1 From top to bottom are the first printed circuit board 11, the second printed circuit board 12, and the floor 13; further, the first printed circuit board 11 is from top to bottom sequentially the first circular patch 111 and the first dielectric board 112, the second printed circuit board 12 is followed by the second circular patch 121 and the second dielectric board 122 from top to bottom; further, the first circular patch 111 is fe...

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Abstract

The invention discloses a double-frequency Beidou navigation antenna with a wide-axis-ratio wave beam effect. The antenna comprises a laminated patch antenna, a double-frequency feed network, a feed probe and a short-circuit probe; the laminated patch antenna comprises a first printed circuit board, a second printed circuit board and a floor which are sequentially arranged from top to bottom; thefirst printed circuit board comprises a first circular patch and a first dielectric slab which are sequentially arranged from top to bottom; the second printed circuit board comprises a second circular patch and a second dielectric slab which are sequentially arranged from top to bottom; and the floor comprises a central round floor, an annular gap and a floor edge resistor which are sequentiallyarranged from the center to the edge of the floor. Due to the adoption of the floor 13 design, the antenna has the good double-frequency wide-axis-ratio wave beam effect; and in addition, the antennais simple in structure, stable in gain and small in size, and is very suitable for serving as a China Beidou second-generation navigation antenna.

Description

technical field [0001] The invention relates to a dual-frequency circular polarization laminated microstrip antenna, in particular to a wide-axis ratio beam dual-frequency circular polarization antenna working in the 1207 / 1561 MHz frequency band of Beidou navigation. Background technique [0002] Satellite navigation system refers to a professional system that provides position, speed, time and other information services for various carriers on the ground, ocean, space and space. It can realize the positioning, navigation, supervision and management of targets. The field plays an important role and becomes an indispensable technology for radio applications. The Beidou satellite navigation system is a satellite navigation system independently developed by my country, which also has the function of short message communication. The frequency bands used by the Beidou II system are B1: 1559.052~1563.144MHz, B2: 1205.094~1209.186MHz, and they are all right-handed circularly polar...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/48H01Q1/50H01Q5/20H01Q5/307H01Q5/50
CPCH01Q1/38H01Q1/48H01Q1/50H01Q5/20H01Q5/307H01Q5/50
Inventor 刘宏梅荀辰晖房少军牟辰王钟葆傅世强
Owner DALIAN MARITIME UNIVERSITY
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