A conformal multi-frequency antenna array for safety-of-life satellite navigation

摘要

Satellite navigation is finding new applications in safety critical systems such as in aviation where it is proposed for approach and landing of aircraft. These new applications place strict requirements regarding position accuracy and system availability. In order to realize these requirements, it is essential to develop robust antenna designs. In this contribution, a multi-band antenna array suitable for safety-of-life satellite navigation is presented. The array consists of 7 elements which are arranged on a half sphere. The single elements are resonant at the Galileo E5a/b and E1 frequency bands. The geometry of the array allows it to achieve stable gain and axial ratio performance over the whole upper hemisphere.