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Double-frequency dual-polarized antenna capable of working at GPS (Global Position System) and TD-SCDMA (Time Division-Synchronization Code Division Multiple Access)

A technology of dual-polarized antennas and microstrip antennas, applied to antenna unit combinations with different polarization directions, independent antenna unit combinations, antennas, etc., can solve problems such as immature technology, and achieve compact structure, easy processing, and improved Effect of Antenna Isolation

Inactive Publication Date: 2012-01-18
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the technology to combine these two polarization methods is not yet mature.

Method used

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  • Double-frequency dual-polarized antenna capable of working at GPS (Global Position System) and TD-SCDMA (Time Division-Synchronization Code Division Multiple Access)
  • Double-frequency dual-polarized antenna capable of working at GPS (Global Position System) and TD-SCDMA (Time Division-Synchronization Code Division Multiple Access)
  • Double-frequency dual-polarized antenna capable of working at GPS (Global Position System) and TD-SCDMA (Time Division-Synchronization Code Division Multiple Access)

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Embodiment Construction

[0039] The present invention will be described in detail below in conjunction with the accompanying drawings, but the implementation method of the present invention is not limited thereto.

[0040] Such as figure 1 , 2a, 2b and 2c, a dual-frequency dual-polarized antenna that can work on GPS and TD-SCDMA is implemented in the form of a laminated microstrip circuit, including an upper-layer microstrip antenna 10 with an upper-layer patch 11, The lower layer microstrip antenna 20 with the lower layer patch 21 and the metal floor layer 30 placed on the bottom layer; the structure of the upper layer microstrip antenna 10 includes the upper layer patch 11, the upper layer dielectric substrate 12, the first short-circuit metal post 14, and the second short-circuit metal post 15 and the first feed metal post 13 for port feeding, wherein the size and structure of the first short-circuit metal post 14 and the second short-circuit metal post 15 are exactly the same; the structure of th...

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Abstract

The invention discloses a double-frequency dual-polarized antenna capable of working at a GPS (Global Position System) and TD-SCDMA (Time Division-Synchronization Code Division Multiple Access). The antenna comprises an upper layer micro-strip antenna, a lower-layer micro-strip antenna and a metal floor layer, wherein the upper layer micro-strip antenna is provided with an upper layer patch; the lower layer micro-strip antenna is provided with a lower layer patch; the metal floor layer is formed on a bottom layer; and the upper layer micro-strip antenna and the lower layer micro-strip antenna share one metal floor layer. The antenna is provided with two short-circuit metal posts which are connected with the metal floor layer on the bottom layer after being inserted into the upper layer micro-strip antenna and lower layer micro-strip antenna from the upper layer patch. In the invention, a laminated structure and a dual-port coaxial feeding mode are adopted for the antenna, so that the antenna has the advantages of simple and compact structure, small size, easiness for processing, and the like.

Description

technical field [0001] The invention relates to an antenna, in particular to a dual-frequency dual-polarization antenna which can work on GPS and TD-SCDMA. Background technique [0002] With the development of satellite navigation technology and mobile Internet technology, applications based on location services are emerging. Now the main application in the market is to obtain geographical location information by GPS positioning system, and to provide mobile Internet access services by GPRS and 3G networks. Therefore, the technical integration of GPS satellite navigation system and the third-generation mobile communication technology TD-SCDMA can be better. Realize mobile, location, and real-time mobile Internet environment. Multi-system navigation (compatible) antennas that can simultaneously receive GPS and TD-SCDMA signals will be more and more widely used. [0003] However, there are technical difficulties in the following aspects in designing a multi-system navigation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/48H01Q1/52H01Q13/08H01Q21/24H01Q21/30
Inventor 胡斌杰宋蕾蕾
Owner SOUTH CHINA UNIV OF TECH
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