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Surface-wave antenna prepared from composite materials of polystyrene foam plate and methyl methacrylate plate or polyethylene plate

A methyl methacrylate, polystyrene foam technology, applied in synthetic resin layered products, radiation element structure, radiation unit cover and other directions, can solve the problem of high electromagnetic loss of microstrip line substrate, high cost and high cost of antenna. Cost and other issues, to achieve the effect of light weight, beautiful appearance and low cost

Inactive Publication Date: 2009-10-28
李常青 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are two main ways to realize the planar antenna: one is the microstrip line planar antenna, which uses the arrayed microstrip radiation unit for reception, but this solution has high electromagnetic loss and high cost due to the high electromagnetic loss of the microstrip line substrate. ;Another way is the radial line waveguide slot array flat panel antenna, which is processed on the surface of the radial line waveguide and can radiate circularly polarized or linearly polarized signals. This antenna uses a high-cost single-layer dielectric , forming a slot front to realize the reception of electromagnetic waves, but the cost of these antennas is relatively high

Method used

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  • Surface-wave antenna prepared from composite materials of polystyrene foam plate and methyl methacrylate plate or polyethylene plate
  • Surface-wave antenna prepared from composite materials of polystyrene foam plate and methyl methacrylate plate or polyethylene plate
  • Surface-wave antenna prepared from composite materials of polystyrene foam plate and methyl methacrylate plate or polyethylene plate

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Embodiment Construction

[0010] 1. A surface wave antenna made of polystyrene foam board and methyl methacrylate board composite material, which includes a metal chassis 7; the metal chassis 7 has a methyl methacrylate board layer 6 (commonly known as plexiglass plate, acrylic plate or PMMA plate) and polystyrene foam plate layer 5 (commonly known as KT plate, KD plate and PS foam plate) composed of slow-wave material medium layer; the slow-wave material medium layer has flexible printing Slit array circuit board layer 4; the flexible printed slot array circuit board layer 4 has a polyurethane foam board layer 3; on the polyurethane foam board layer 3, there is a variable structure composed of three layers of parallel linear grids Polarizer sheet 2; the whole antenna has a low dielectric loss organic material cover 1. The tuner 8 or the cable plug 9 on which the satellite signal is installed can be used for signal reception or transmission respectively.

[0011] 2. A surface wave antenna made of poly...

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Abstract

The invention discloses a surface-wave antenna prepared from composite materials of a polystyrene foam plate and a methyl methacrylate plate or a polyethylene plate, belonging to the technical filed of antennae. The surface-wave antenna adopts composite dielectric materials of the methyl methacrylate plate and polyethylene foams (or the polyethylene plate and polystyrene foams) and an organic outer housing with low dielectric loss, thereby having the advantages of convenient installation, little accumulated rain and snow, attractive appearance, stable performance, low cost, small volume and light weight and being an emergent satellite communication antenna used in both civil and military purposes.

Description

(1) Technical field [0001] The invention relates to an antenna, in particular to the production material of receiving and transmitting antennas. (2) Background technology [0002] At present, the antennas used for satellite C-band and Ku-band reception at home and abroad generally use reflector antennas, that is, parabolic antennas of various sizes. These antennas mainly use the metal parabolic surface to reflect and gather electromagnetic waves, and cooperate with the feed source at the focal point Form the mouth surface field with equal amplitude and same phase distribution to realize the reception of satellite downlink electromagnetic waves. Since the parabolic antenna is a three-dimensional installation structure, it occupies a large area and is complicated to install. The feed source and the high-frequency head are far away from the antenna reflection surface, and there is no conformal structure, so it is not very convenient to install. Flat panel antennas have the adv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/42B32B27/08
Inventor 李常青李林
Owner 李常青
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