Patellar-tendon transfer by the slot-block method for recurrent subluxation and dislocation of the patella

Abstract

Satellites in an orbit at a low or medium altitude require wide-angle shaped-beam antennas to realize a data link in an optimum fashion. RYMSA (Spain) owns the patent on a small, lightweight antenna with such characteristics, which has been developed in part, with ESA funding. The antenna is based on a balanced combination of two elements, namely a horn and a bi-conical horn. An antenna has been optimized for use on-board the METOP satellites.