Holographic reflective array compact range
A reflective array and compact field technology, applied in antenna radiation patterns, radio wave measurement systems, instruments, etc., can solve difficult manufacturing costs and other problems, and achieve the effect of simple manufacture, light structure, and easy installation
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[0022] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0023] Such as image 3 As shown, the reflectarray antenna 9 is composed of a reflectarray unit 4, a dielectric substrate 7, an air layer 5, and a ground plate 8. Reflector units 4 of different sizes have different abilities to adjust the phase of electromagnetic waves. The manufacture of the reflectarray antenna 9 It can be manufactured using a PCB process.
[0024] The function of the reflectarray antenna 9 is to correct the spherical wave emitted by the feed source into a plane wave at a short distance.
[0025] The feed source 1 feeds forward and vertically irradiates the reflectarray antenna 9 to ensure that the aperture is uniformly irradiated, and the spherical wave approximately vertically irradiates all the reflectarray units 4 .
[0026] The narrow field focal length 3 of the holographic reflectarray is set to 1.5 times the side l...
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