Dual-polarized antenna array
AssigneeSwissto12 SA
InventorsEsteban Menargues Gomez, Santiago Capdevila Cascante
Life of this patent
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Abstract
An antenna array includes at least two antennas with dual polarization, each antenna including: at least one first port intended for a first signal with a first polarization; at least one second port intended for a second signal with a second polarization; a polarizer including a septum for combining the signal on the first port with the signal on the second port; a polarization-preserving evanescent filter, one end of which is directly coupled to the polarizer and the other end is directly coupled to the ether. The evanescent filter includes an internal channel with at least one internal face provided with protuberances to match the impedance of the antenna to that of the ether.
Claims19
Antenna array produced in a monolithic way, comprising at least two antennas with dual polarization, each antenna comprising:
- at least one first port intended for a first signal with a first polarization;
- at least one second port intended for a second signal with a second polarization;
- a polarizer, comprising a septum for combining the signal on the at least one first port with the signal on the at least one second port;
- and
- a polarization-preserving evanescent filter, one end of which is directly coupled to the polarizer and the other end is directly coupled to the ether, that is the free space outside the antenna, to serve as radiating element of the antenna, said evanescent filter comprising an internal channel with at least one internal face provided with protuberances to match the impedance of the antenna to that of the ether.
Dependencies are inferred from the claim text.