FUTATSUMORI , S.

This paper proposed an active Fresnel reflector antenna. The antenna consists of two different dimensions of passive array cell and one active array cell. Phase shift of the active cell varies π rad by applying bias voltage into a diode. Advantage of the reflector antenna is small power consumption due to the limited number of active cells and...

This paper describes the development of a dual frequency switchable Fresnel reflectarray (RA) antenna for communication between satellites and an unmanned aerial vehicle. The operation frequency of the antenna is switched by a PIN diode soldered on each patch of RA. First, the shape of the patch is designed on the assumption of having a...

Foreign objects and debris (FODs) may cause accidents or disasters. The crash of a Concorde jet in France that killed 113 people in 2000 is an example of the danger created by a thin metal strip that fell from another airplane. Recently, FOD detection systems have been developed and tested on airports. Most of them are based on the association...

Prix du Meilleur Poster étudiant

In designing a Foreign Object Debris (FOD) detection system on airport runways, this paper deals with the performance of a 77 GHz reflectarray antenna (RA). Debris may be very small and have low radar cross section (RCS), leading to design a high gain primary-fed offset RA. To minimize the aperture blockage, the main radiation lobe is in the...

International audience

International audience