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Coupled array microstrip antenna for Beidou navigation system

A technology of Beidou navigation system and coupled array, which is applied in the field of coupled array microstrip antenna, can solve the problems that the antenna is difficult to achieve the best performance, the antenna structure is complicated, the axial ratio, and the elevation angle are large, so as to achieve good low elevation angle performance and improve the elevation angle Performance, Effect of High Phase Center Stability

Active Publication Date: 2015-08-19
XIAMEN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] For most of the microstrip circularly polarized antennas currently working, the size of conventional microstrip circularly polarized antennas is generally relatively large. Circular polarization characteristics, such as axial ratio, elevation angle, etc. are too large, making it difficult for the antenna to achieve optimal performance
[0010] The data show that no one has applied array coupling technology and phase center stable design to the design of Beidou antenna

Method used

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  • Coupled array microstrip antenna for Beidou navigation system
  • Coupled array microstrip antenna for Beidou navigation system
  • Coupled array microstrip antenna for Beidou navigation system

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Embodiment Construction

[0025] The following embodiments will further illustrate the technical solution of the present invention and its outstanding effects in conjunction with the accompanying drawings.

[0026] See Figure 1~3 , The embodiment of the present invention is provided with a single-sided copper-clad substrate 1, on the single-sided copper-clad substrate 1, a square copper conductor surface antenna patch 3 is provided, and a rectangular coupling array is provided around the square copper conductor surface antenna patch 3 2. The square copper conductor surface antenna patch 3 is provided with symmetrically distributed outer layer grooves 4, middle layer grooves 5, and inner layer grooves 6; the square copper conductor surface antenna patch 3 is provided with a feed hole 7.

[0027] The single-sided copper-clad substrate 1 adopts a composite ceramic dielectric board with a relative dielectric constant of 9.8±5%. The single-sided copper-clad substrate 1 has a length of 25.32±0.01 mm, a width of...

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Abstract

A coupling array microstrip antenna for the Beidou navigation system relates to a microstrip antenna. The invention provides the coupling array microstrip antenna for the Beidou navigation system, which is high in gain, low in elevation, small in size, low in axial ratio and high in phase central stability and is used for the Beidou downstream S frequency band. The coupling array microstrip antenna is provided with a single-surface copper cladding layer substrate, wherein a square copper conductor surface antenna paster is arranged on the single-surface copper cladding layer substrate, a rectangular coupling array is arranged around the square copper conductor surface antenna paster, and symmetrically distributed outer layer slots, middle layer slots and inner layer slots are arranged in the square copper conductor surface antenna paster; feed holes are formed in the square copper conductor surface antenna paster.

Description

Technical field [0001] The invention relates to a microstrip antenna, in particular to a coupled array microstrip antenna used in a Beidou navigation system. Background technique [0002] BeiDou Satellite Navigation System (BeiDou (COMPASS) Navigation Satellite System) is an autonomously developed and independently operated global satellite navigation system currently being implemented in China. It is the fourth mature satellite navigation system after GPS, GLONASS, and GALILEO. The system is committed to providing high-quality positioning, navigation, timing and communication services to users worldwide. According to the plan, the Beidou satellite navigation system will provide formal services to most of the Asia-Pacific region in early 2013. Around 2020, the Beidou satellite navigation system will form a global coverage capability. The Beidou satellite navigation system consists of three parts: space segment, ground segment and user segment. The space segment includes 5 geost...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q9/04H01Q13/08H01Q13/10H01Q21/24
Inventor 游佰强胡宝法肖振宁周建华梁冰洋周涛李杰
Owner XIAMEN UNIV
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