In this paper, a spiral antenna has been designed for 2 - 18 GHz by investigating different substrates. FR4, Arlon TC600 and Rogers RT/ Duroid 5880 substrates have been compared to study the effects ...

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Abstract: A hybrid antenna array in a compact shared aperture for Rx and Tx is presented in this paper. Each antenna is a dual-band, polarisation reconfigurable, circularly polarised radiator. It ...