High radiation efficient dual band feed horn
AssigneeThe Boeing Company
InventorsArun Bhattacharyya, Daniel H. Roper
Life of this patent
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Abstract
A multiple mode feed horn is provided for transmitting and receiving signals. The feed horn includes a transverse electric throat section, a transverse electric profile section, and a transverse electric aperture section. The transverse electric profile section propagates a first transverse electric (TE) mode. The transverse electric aperture section propagates a second TE mode. The multiple mode feed horn prevents propagation of traverse magnetic modes from said throat section to said aperture section.
Claims16
A satellite for a communication system comprising:
- at least one multiple mode feedhorn receiving or transmitting communication signals, said at least one multiple mode feedhorn comprising;
- a transverse electric throat section;
- a transverse electric profile section having a first step propagating a first transverse electric (TE) mode and a first transverse magnetic (TM) mode;
- and
- a transverse electric aperture section having a second step propagating a second transverse electric (TE) mode and a second transverse magnetic (TM) mode canceling the first (TM) mode;
- wherein said multiple mode feedhorn minimizes the propagation of transverse magnetic modes.
A method of operating a multiple mode feedhorn comprising:
- input matching received signals through non-reflective direct signal propagation;
- exciting a first TE mode and a second TE mode;
- propagating said first TE mode and a first TM mode with a first step of the multiple mode feedhorn;
- propagating said second TE mode and a second TM mode with a second step of the multiple mode feedhorn;
- canceling said first TM mode with said second TM mode;
- and
- minimizing the propagation of transverse magnetic modes.
Dependencies are inferred from the claim text.