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Composite material stripline antenna processing method

A technology of composite materials and processing methods, which is applied to the structural form of antennas, electrical components, and radiation elements, to achieve the effects of reducing lifting power, reducing manufacturing costs, and good electrical performance consistency

Inactive Publication Date: 2011-08-17
中国兵器工业第二〇六研究所
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, the microstrip antenna structure processed in China is basically a honeycomb sandwich structure, which needs to be improved in terms of flatness, weight and electrical performance consistency.

Method used

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  • Composite material stripline antenna processing method
  • Composite material stripline antenna processing method
  • Composite material stripline antenna processing method

Examples

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Embodiment Construction

[0027] A certain radar antenna is taken as an example below to describe the specific implementation manner of the present invention. This type of antenna is a strip antenna made of composite material, which consists of 24 elements, each of which has a dimension of 2400mm×200mm×10mm, and consists of three layers of microstrip circuit board 1, two layers of core material 2, two layers of skin 3 and A total of 11 layers of six layers of adhesive film are laminated and bonded, such as figure 1 shown.

[0028] The processing of the antenna should be carried out as follows:

[0029] 1. Antenna material There are many structural materials for antennas, such as aluminum honeycomb, paper honeycomb, foam core material, etc. The resin systems used include polyester, epoxy, acrylic, etc. At present, commonly used materials cannot meet the performance requirements of the antenna. After repeated tests, comparisons and tests, the core material of the stripline antenna is selected from Swis...

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Abstract

The invention relates to a composite material stripline antenna processing method. The method comprises the following processes of: selecting an antenna material; designing a special mould; determining process parameters; and manufacturing an antenna according to a processing flow. The method comprises the following specific processes of: (1) selecting the antenna material, namely selecting polyether polyimide foam as a core material, selecting an acrylic adhesive film as an adhesive film, and selecting intermediate temperate cured flame retardant epoxy aramid fabric prepreg as a skin; (2) designing the mould, namely designing a main mould used for performing layering, vacuum bag package and curing of antenna processing; designing an auxiliary mould used for smoothing a layer to ensure the requirement on the flatness of surface of the antenna; and designing a cutting mould to serve as a standard template used for cutting to ensure the consistency of the sizes when cutting the antenna material; and (3) determining the process parameters, namely acquiring a sandwich bonding curve and a skin bonding curve through experiments for determining curing temperature and time parameters of each process to ensure the process consistency of the antenna. The processed antenna has low antenna weight and low cost, meets electrical performance requirement and mechanical performance requirement, and passes various environmental tests of products.

Description

technical field [0001] The invention belongs to the field of composite material antenna processing, and specifically selects composite materials that meet the design requirements, and processes the multilayer microstrip circuit board to have uniform thickness, uniform adhesive layer, no air holes, no wrinkles and other impurities between the interlayers, and smooth surface , An antenna element that is smooth and meets the electrical performance requirements. technical background [0002] The working principle of the radar is: launch the electromagnetic wave beam, return the echo after encountering the detected target, and determine the detected target and the distance from the radar after receiving and data processing. The functions of radar transmission and reception need to be completed by antennas. Stripline antennas are used in modern radars due to their compact structure and low loss. [0003] Due to the complex and precise design of the microstrip circuit (the thinnes...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q13/08
Inventor 许磊潘世永
Owner 中国兵器工业第二〇六研究所
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