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A reflectarray antenna designed to fulfil both coverage and isolation requirements of a commercial DBS mission with South American coverage (PAN-S) is presented. The PAN-S mission includes requirements for the coverage footprint and isolation with an European coverage (EUR). Both requirements have been used in the design process of a 1.2 m reflectarray. In order to synthesize the radiation pattern,...
In this contribution, a reflectarray is proposed as subreflector in a dual-reflector configuration to produce a contoured beam for DBS applications. The beam shaping is obtained by adjusting the phase on the reflectarray elements. In order to analyse the antenna, a modular technique has been developed so that the most appropriate analysis method is used for each element of the structure: full-wave...
A technique is presented for the design of three-layer reflectarrays for contoured beam antennas operating in two frequency bands. The technique has been applied to design a 1-m reflectarray for a South American coverage in Tx/Rx frequency bands. The technique is based on the optimisation of the patch dimensions in three layers of varying-sized patches in order to fulfil the requirements of the coverage...
A one-meter reflectarray has been designed for a DBS European coverage in a 15% frequency band (10.95- 12.75 GHz). The reflectarray is made of three stacked layers of printed arrays with rectangular patches. The dimensions of the staked patches are optimised in each element to ensure the required coverage at live frequencies in the working band. The radiation patterns fulfil the contour requirements...
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