Multi-mode square horn with cavity-suppressed higher-order...

Details Multi-mode square horn with cavity-suppressed higher-order... Multi-mode square horn with cavity-suppressed higher-order...

H - Electricity

01

Q

H01Q 13/02 (2006.01) H01Q 25/04 (2006.01)

Patent

CA 2328526

An antenna apparatus that has an increased efficiency, and a method for increasing the efficiency of multi-mode antenna feed horns, is disclosed. The method comprises the steps of exciting, within the antenna, a desired transmission mode and an undesired transmission mode of the signal to be transmitted, and converting, within the antenna, power within the undesired transmission mode into power for the desired transmission mode of the signal to be transmitted. An antenna apparatus in accordance with the present invention comprises a feed horn having an input opening, an aperture, and a cavity, disposed between the input opening and the aperture, for suppressing an undesired transmission mode of the antenna and exciting a desired transmission mode of the antenna.

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