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X-band broadband high-gain dual-linear polarization microstrip antenna array

A technology of dual-line polarization and microstrip antennas, which is applied to antenna arrays, antennas, antenna grounding devices, etc., can solve the problems of narrow bandwidth, low efficiency, and low gain of microstrip antennas, and achieve the effect of gain improvement

Pending Publication Date: 2020-09-01
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

The microstrip antenna array has the technical characteristics of low profile, easy integration, light weight and easy conformality, but the traditional microstrip antenna usually has narrow bandwidth, low efficiency, and low gain. At the same time, due to the complexity of the feed network, the dual Linearly Polarized Microstrip Antenna Arrays Are Difficult to Realize

Method used

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  • X-band broadband high-gain dual-linear polarization microstrip antenna array
  • X-band broadband high-gain dual-linear polarization microstrip antenna array
  • X-band broadband high-gain dual-linear polarization microstrip antenna array

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Embodiment Construction

[0032] Below, the present invention will be further described in conjunction with the accompanying drawings and specific embodiments.

[0033] refer to Figure 1 to Figure 7 , an X-band broadband high-gain dual-polarized microstrip antenna array, from the top layer to the bottom: the first dielectric substrate, the parasitic patch array, the dielectric frame, the radiation patch array, the second dielectric substrate, and the coupling slot layer, a third dielectric substrate, a horizontally polarized feed network, a fourth dielectric substrate, an upper metal floor, a fifth dielectric substrate, a vertically polarized feed network, a sixth dielectric substrate, a bottom metal floor and SMA connectors.

[0034] In the parasitic patch array, all the parasitic patches are identical, and the parasitic patch array is composed of 16 units of 4×4 and etched from a single panel with the first dielectric substrate.

[0035] In the radiating patch array, each radiating patch is exactly...

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Abstract

The invention discloses an X-band broadband high-gain dual-linear polarization microstrip antenna array, and belongs to the technical field of antennas. The antenna sequentially comprises a parasiticpatch array, a radiation patch array, a coupling gap layer, a horizontal polarization feed network, an upper metal floor, a vertical polarization feed network and a bottom metal floor from top to bottom. The coupling gap layer is provided with an H-shaped coupling slot, the horizontal polarization feed network carries out coupling feed on the radiation patch array through the slot, and the vertical polarization feed network carries out direct feed on the radiation patch array through a probe. Through reasonable layout, two sets of one-to-sixteen feed networks are designed in a limited space, it is ensured that all branches of each set of feed network are equal in amplitude and phase, and the dual-linear polarization characteristic of the array is achieved.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to an X-band broadband high-gain dual-line polarized microstrip antenna array. Background technique [0002] With the development of satellite mobile communication, the dual-linear polarized antenna system has attracted more and more attention. At the same time, the receiving terminal has higher and higher requirements for antennas with low profile and high gain. Traditional reflector antennas and waveguide array antennas have been difficult to meet the above requirements. [0003] The profile of the microstrip antenna is thin, small in size, light in weight, low in cost, can be easily placed on the instrument panel, and can conform to the surface of missiles, satellites and other carriers, especially it can be easily connected to the feed network and active Devices are integrated in blocks. In the past two years, microstrip antennas have been more and more widely used in the wid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q5/385H01Q21/00H01Q3/26H01Q1/36H01Q1/48H01Q1/50
CPCH01Q1/36H01Q1/48H01Q1/50H01Q3/26H01Q21/0006H01Q5/385
Inventor 刘晓王鹏飞姜海玲李昕桉王亚涛
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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