Antena reflectarray polarizadora en banda K y Ka para satélites pequeños
Year: 2024
Type: conference-paper
Abstract: This contribution describes a dual-band polarizing reflectarray antenna for small-satellite communications. The proposed antenna has been designed to convert the incident dual-linearly polarized field into dual-circular polarization in K and Ka bands, generating a high gain beam as well. The unit-cell is composed of two layers of metallization, where each layer has orthogonal groups of dipoles and is designed to independently operate at a different frequency. The polarization conversion process has been generalized to operate with non-stacked dual polarization elements, which allows to use a single dielectric layer per operating frequency. Simulated results of a 20 cm polarizing reflectarray antenna with a dual-layer configuration show a maximum gain larger than 30 dBi and an axial ratio below 1.5 dB at both design frequencies (19.7 and 29.5 GHz).
Source: Hispana
Authors: Ruiz Casado, Juan Manuel, Martínez de Rioja del Nido, José Daniel, Martínez de Rioja del Nido, Eduardo María, Encinar Hernández, José Antonio
Language: English
Subfield: Aerospace Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7036114747
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