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High temperature resistance microstrip antenna

A microstrip antenna, high temperature resistant technology, applied in the field of satellite navigation antennas, can solve the problem of not very high temperature limit, can only withstand high temperature of 400 ℃, etc., to achieve the effect of meeting the requirements of electrical performance indicators

Inactive Publication Date: 2018-05-18
XIDIAN UNIV
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  • Application Information

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Problems solved by technology

[0009] It can be seen that at present, whether it is a microstrip antenna designed with high-temperature-resistant materials or a microstrip antenna with heat-insulating materials around it, the temperature limit they can withstand is not very high, and the highest temperature can only withstand 400°C

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Embodiment Construction

[0029] The present invention will be specifically introduced below in conjunction with the accompanying drawings and specific embodiments.

[0030] refer to figure 1 and figure 2 , the high temperature resistant microstrip antenna of the present invention includes: a patch 1 , a dielectric substrate 2 , a ground plate 4 and a coaxial connector 5 . Wherein, the patch 1, the ground plate 4 and the coaxial connector 5 are all made of high-temperature-resistant metal materials, and the dielectric substrate 2 is made of high-temperature-resistant non-metallic materials.

[0031] refer to figure 1 and figure 2 , the dielectric substrate 2 and the ground plate 4 are connected through a coaxial connector 5, and an air layer 3 is left between the dielectric substrate 2 and the ground plate 4. The air layer 3 can reduce the equivalent dielectric constant and increase the frequency band, and its thickness is generally 0.1mm~10mm.

[0032] refer to figure 1 , the patch 1 is in the...

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Abstract

The invention discloses a high temperature resistance microstrip antenna. The high temperature resistance microstrip antenna comprises a patch, a dielectric substrate, a ground plate and a coaxial connector, wherein the patch, the ground plate and the coaxial connector are made of high temperature resistance metal materials, the dielectric substrate is made of a high temperature resistance non-metal material, the dielectric substrate and the ground plate are connected through the coaxial connector, an air layer is arranged between the dielectric substrate and the ground plate, the patch is inan E shape, the middle of the patch is symmetrically provided with two isosceles trapezoid grooves, the patch is arranged on the outer surface of the dielectric substrate, a signal is fed into a highfrequency current through a feed port of the coaxial connector, the high frequency current reaches the patch through the coaxial connector, the high frequency current is converted by the patch into electromagnetic waves radiating out to the space. The antenna is advantaged in that stable and reliable work in the high temperature environment above 400 DEG C or even 1500 DEG C can be realized, and electric performance index requirements are satisfied.

Description

technical field [0001] The invention relates to a microstrip antenna, in particular to a high temperature resistant microstrip antenna, which belongs to the technical field of satellite navigation antennas. Background technique [0002] With the continuous development of satellite navigation technology, more and more satellite navigation antennas are used in hypersonic vehicles. However, according to aerodynamic theory, hypersonic vehicles will rub against the atmosphere during flight, and the friction process will generate high temperatures of hundreds or even thousands of degrees Celsius. This special high-temperature environment is undoubtedly a huge test for satellite navigation antennas. [0003] Due to the advantages of light weight, small profile, easy conformal, flexible design, low cost, and easy integration with MIC, MMIC and other circuits, microstrip antennas have been more and more widely used, such as in missile guidance, radar, applications in satellite commu...

Claims

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Application Information

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IPC IPC(8): H01Q1/36H01Q1/38H01Q1/48H01Q1/50H01Q1/28
CPCH01Q1/364H01Q1/28H01Q1/38H01Q1/48H01Q1/50
Inventor 罗超宋立伟李勋姜丽媛周扬鲁斯斯姚毅刘永磊黄松然史婷婷
Owner XIDIAN UNIV
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