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Satellite navigation system terminal broadband microstrip antenna

A satellite navigation system and microstrip antenna technology, applied in the field of antenna technology and broadband, can solve the problems of reducing the isolation and interference of two antennas, and achieve the effect of large bandwidth, high precision and wide application range.

Inactive Publication Date: 2016-05-18
CHENGDU TOPANTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The other 4 feeders feed the upper patch, and the 4 feeders feeding the upper patch must pass through the lower patch, which will inevitably cause excitation to the lower patch, form interference, and reduce the isolation between the two antennas

Method used

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  • Satellite navigation system terminal broadband microstrip antenna
  • Satellite navigation system terminal broadband microstrip antenna
  • Satellite navigation system terminal broadband microstrip antenna

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Satellite navigation system terminal microstrip antenna, see figure 2 , 3 , including a patch 1, a dielectric substrate and an excitation probe 2, the dielectric substrate includes a first layer of dielectric substrate 3 and a second layer of dielectric substrate 4, and the dielectric constants of the two dielectric substrates are both 4.5.

[0061] The first layer of dielectric substrate is arranged between the patch and the excitation probe, the patch has a coupling gap, and one end of the coupling gap is arranged on the edge of the patch;

[0062] The excitation probe is an L-shaped probe, including a transverse portion and a longitudinal portion; the transverse portion of the excitation probe forms a capacitive coupling with the patch, the longitudinal portion passes through the second dielectric substrate, and the longitudinal portion has an external circuit connection terminal. The coupling slits of the patch are linear slits distributed symmetrically in the cen...

Embodiment 2

[0098] The difference between this embodiment and Embodiment 1 is that the coupling slots in this embodiment are only linear slots, and no expansion slots are provided.

[0099] In Example 1, the patch is Figure 8 In the square, the present invention can also use patches of other shapes, such as Figure 8 Medium round or shaped.

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Abstract

A satellite navigation system terminal broadband microstrip antenna relates to the antenna technology. The satellite navigation system terminal broadband microstrip antenna comprises a patch, a dielectric substrate and an excitation probe, and is characterized in that: the dielectric substrate comprises a first layer dielectric substrate and a second layer dielectric substrate, and the dielectric constant of both the first layer dielectric substrate and the second layer dielectric substrate ranges from 4.4 to 4.6; and the excitation probe comprises a transverse portion and a longitudinal portion, the transverse portion of the excitation probe and the patch form capacitive coupling, the longitudinal portion penetrates the second layer dielectric substrate, and the longitudinal portion comprises an external circuit connecting end. The satellite navigation system terminal broadband microstrip antenna has the beneficial effects of small size, high precision, wide bandwidth and wide application range.

Description

technical field [0001] The invention relates to antenna technology, broadband technology, and in particular to a satellite navigation terminal antenna. 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 target positioning, navigation, supervision and management. It has played an important role in military and civilian fields, and has become an indispensable high technology for radio applications. [0003] With the continuous improvement of the Beidou navigation system and China's participation in the research and development of the European Galileo satellite navigation system, China is now able to receive signals from four sets of satellite navigation systems: GPS, Beidou, GLONASS, and Galileo. The use of integrated navigation can greatly increase the number of observed satellites, which is ben...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q13/08
Inventor 滕崴滕秀文
Owner CHENGDU TOPANTECH CO LTD
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