FLAT ANTENNA FOR TERMINAL OPERATING IN DUAL CIRCULAR POLARIZATION, AIRBORNE TERMINAL AND SATELLITE TELECOMMUNICATION SYSTEM COMPRISING AT LEAST ONE SUCH ANTENNA

摘要

The antenna comprises at least a first array of N radiating waveguides (26) having radiating elements (27) with two directions of circular polarization, a second array of N distribution waveguides, N microwave switches (30). ), each microwave switch (30) having a microwave input (31), a first microwave output (34) connected to the first upper input / output port (40) of a radiating waveguide (26) by the intermediate of the upper part (50) of a distribution waveguide (23) and a second microwave output (35) connected to the second lower input / output port of the same radiating waveguide (26) by the intermediate of the lower part (51) of the same distribution waveguide, a control input (33) of position (1, 2) of the switch (30) able to switch the microwave input (31) of the switch ( 30) on the first or second microwave output (34, 35) in function of the direction of circular polarization.