| 摘要 |
A multi-polarized scanning phased array antenna includes a plurality of elements, a first feed line operatively coupling the plurality of elements, a second feed line operatively coupling the plurality of elements, and a phase delay operatively coupled in at least one of the first feed line and the second feed line. The phase delay is configured to cancel a polarized signal associated with the multi-polarized scanning phased array antenna. A method of increasing isolation between polarizations in a multi-polarized scanning phased array antenna includes coupling a plurality of elements operatively with a first feed line, coupling the plurality of elements operatively with a second feed line, and coupling a phase delay operatively in at least one of the first feed line and the second feed line such that a polarized signal associated with the multi-polarized scanning phased array antenna is cancelled. |
| 主权项 |
1. A multi-polarized scanning phased array antenna, which comprises:
a plurality of elements, the plurality of elements comprising a first element and a second element, the first element being fed with a first polarization signal at a first angle and a second polarization signal at a second angle, the second element being fed with the first polarization signal at a third angle and the second polarization signal at a fourth angle, the first polarization signal comprising a first polarization, the second polarization signal comprising a second polarization, the first polarization being different from the second polarization; a first feed line operatively coupling the plurality of elements, the first feed line being bent using only first angles, the first angles being only right angles, the first feed line being associated with the first polarization; a second feed line operatively coupling the plurality of elements, the second feed line being bent using only second angles, the second angles being only right angles, the second feed line being associated with the second polarization; and at least one phase shifter operatively coupled in at least one of the first feed line and the second feed line, one of the first polarization signal and the second polarization signal being cancelled at a connection point between the first and second elements by operation of the at least one phase shifter and at least one of the first, second, third, and fourth angles, the at least one phase shifter comprising at least one of a digital phase shifter and an analog phase shifter, the analog phase shifter comprising at least one length of conductor in addition to that required to couple the plurality of elements across the analog phase shifter using a straight conductor, the at least one length of conductor providing a phase shift, the at least one phase shifter providing a 180° phase shift between at least one of (1) the first and third angles and (2) the second and fourth angles. |
