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Dual-polarization reflectarray in Ku-band based on two layers of dipole arrays for a transmit–receive satellite antenna with South American coverage

2018; Cambridge University Press; Volume: 10; Issue: 2 Linguagem: Inglês

10.1017/s1759078717001209

1759-0795

José A. Encinar, Rafael Florencio, Manuel Arrebola, Miguel A. Salas‐Natera, Mariano Barba, Juan E. Page, Rafael R. Boix, Giovanni Toso,

Structural Analysis and Optimization

A 1.1-m reflectarray antenna has been designed, manufactured, and tested to fulfill the requirements of a satellite antenna in Ku-band that provides South-American coverage in Tx and Rx. The reflectarray cells consist of four dipoles for each polarization in two dielectric layers, selected because of their simplicity and high performance. The dipole dimensions are optimized in all the reflectarray cells to accomplish the prescribed radiation patterns, by iteratively calling an analysis routine based on method of moments in spectral domain and local periodicity. The measured radiation patterns of the manufactured antenna have been satisfactorily compared with simulations and with a three-layer reflectarray previously designed, manufactured, and tested for the same mission.