Reflectarray antenna
id:
reflectarray-antenna-300-10661099
title:
Reflectarray antenna
text:
A reflectarray antenna consists of an array of unit cells, illuminated by a feeding antenna. The feeding antenna is usually a horn.
The unit cells are usually backed by a ground plane, and the incident wave reflects off them towards the direction of the beam, but each cell adds a different phase delay to the reflected signal.
A phase distribution of concentric rings is applied to focus the wavefronts from the feeding antenna into a plane wave.
A progressive phase shift can be applied to the unit
brand slug:
wiki
category slug:
encyclopedia
description:
Beam focusing, typically horn-fed planar array of unit cells
original url:
https://en.wikipedia.org/wiki/Reflectarray_antenna
date created:
date modified:
2024-02-21T20:48:15Z
main entity:
{"identifier":"Q96401432","url":"https://www.wikidata.org/entity/Q96401432"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/en/6/60/Reflectarray.png","width":635,"height":763}
fields total:
13
integrity:
15