Waveguide-Type Transmitarray Antennas with a Concave Surface Profile Analogous to Rotman Lens for Spatial Feeding to Radiate Collinear Multi-Beams
Journal
International Symposium on Antenna and Propagation (ISAP 2017)
Journal Volume
2017
Journal Issue
1
Date Issued
2017
Author(s)
Abstract
This paper presents an architecture of transmitarray antenna consisting of waveguide-type elements. The array has a planar surface profile facing the beam directions of radiation, and has a convex surface profile facing to the feeds of illumination. The concave surface is analogous to the curve of Rotman lens for the applications of multi-beam radiation. The additional phases required in the concept of Rotman lens are created by controlling the domensions of waveguides. The transmitarray becomes very compact and functions in a standing alone fashion when it is illuminated by multiple feeds. The algorithm and examples will be demonstrated by numerical examples.
SDGs
Type
conference paper