Communication system with broadband antenna
First Claim
1. An antenna assembly comprising:
- an antenna array including;
a plurality of antennas configured to receive a signal from a source; and
a waveguide feed network coupled to each antenna of the plurality of antennas; and
a polarization converter unit configured to compensate for polarization skew between the antenna array and the source;
wherein the waveguide feed network comprises a plurality of orthomode transducers, each orthomode transducer coupled to a corresponding one of the plurality of antennas, each orthomode transducer having a first port and a second port, each orthomode transducer configured to receive the signal from the corresponding antenna and to provide at the first port a first component signal having a first polarization and at the second port a second component signal having a second polarization;
wherein the first and second polarizations are orthogonal;
wherein the feed network is coupled to the plurality of antennas via the plurality of orthomode transducers; and
wherein the feed network is constructed and arranged to receive the first component signal and the second component signal from each orthomode transducer and to provide a first summed component signal at a first feed port and a second summed component signal at a second feed port; and
wherein the polarization converter unit is coupled to the first and second feed ports and is configured to receive the first summed component signal and the second summed component signal.
9 Assignments
0 Petitions
Accused Products
Abstract
A communication system including an antenna array with feed network coupled to communication electronics. In one example, a communication subsystem comprises a plurality of antennas each adapted to receive an information signal and a plurality of orthomode transducers coupled to corresponding ones of the plurality of antennas, each OMT is adapted to provide at a first component signal having a first polarization and a second component signal having a second polarization. The communication subsystem also comprises a feed network that receives the first component signal and the second component signal from each orthomode transducer and provides a first summed component signal at a first feed port and a second summed component signal at a second feed port, and a phase correction device coupled to the first and second feed ports and adapted to phase match the first summed component signal with the second summed component signal.
-
Citations
19 Claims
-
1. An antenna assembly comprising:
-
an antenna array including; a plurality of antennas configured to receive a signal from a source; and a waveguide feed network coupled to each antenna of the plurality of antennas; and a polarization converter unit configured to compensate for polarization skew between the antenna array and the source; wherein the waveguide feed network comprises a plurality of orthomode transducers, each orthomode transducer coupled to a corresponding one of the plurality of antennas, each orthomode transducer having a first port and a second port, each orthomode transducer configured to receive the signal from the corresponding antenna and to provide at the first port a first component signal having a first polarization and at the second port a second component signal having a second polarization;
wherein the first and second polarizations are orthogonal;wherein the feed network is coupled to the plurality of antennas via the plurality of orthomode transducers; and
wherein the feed network is constructed and arranged to receive the first component signal and the second component signal from each orthomode transducer and to provide a first summed component signal at a first feed port and a second summed component signal at a second feed port; andwherein the polarization converter unit is coupled to the first and second feed ports and is configured to receive the first summed component signal and the second summed component signal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A vehicle-mountable communication system comprising:
-
an antenna array configured to receive a signal from a source; and means for compensating for any polarization skew between the antenna array and the source. - View Dependent Claims (9, 10, 11)
-
-
12. An antenna assembly comprising:
-
a first antenna configured to receive a signal from a source; a second antenna, substantially identical to the first antenna, and configured to receive the signal; a waveguide feed network coupled to the first and second antennas and including a first feed port and a second feed port, the waveguide feed network being constructed to receive the signal from the first and second antennas and to provide a first component signal having a first polarization at the first feed port and a second component signal having a second, orthogonal, polarization at the second feed port; and a polarization converter unit coupled to the first feed port and the second feed port that is configured to compensate for any polarization skew between the antennas and the source. - View Dependent Claims (13, 14, 15, 16, 17)
-
-
18. An antenna assembly comprising:
-
an antenna adapted to receive an information signal from a source; an orthomode transducer coupled to a feed point of the antenna and having a first port and a second port, the orthomode transducer being constructed to receive the information signal from the antenna and to split the information signal to provide, at the first port, a first component signal and, at the second port, a second component signal, the second component signal being orthogonally polarized to the first component signal; and a polarization converter unit coupled to the first and second ports of the orthomode transducer and configured to receive the first and second component signals and to compensate for polarization skew between the antenna and the source. - View Dependent Claims (19)
-
Specification