Delivering both sum and difference beam distributions to a planar monopulse antenna array

DWPI Title: Planar monopulse radar apparatus for e.g. military ships, has feed network for providing sum and difference beam distributions across antenna array responsive to power being applied at first and second input ports
Abstract: A planar monopulse radar apparatus includes a planar distribution matrix coupled to a planar antenna array having a linear configuration of antenna elements. The planar distribution matrix is responsive to first and second pluralities of weights applied thereto for providing both sum and difference beam distributions across the antenna array.
Use: Planar monopulse radar apparatus for military ships and aircraft.
Advantage: The apparatus delivers sum or difference distribution to the antenna array so as to enable the antenna array to achieve low sum pattern-to-sidelobe levels in sum and difference beam patterns. The apparatus provides power input at port that crosses with power input from port in-plane without requiring any vertical transition.
Novelty: The apparatus has first input connected to first and second antenna elements through first comparator component and first crossover component. Second and third inputs are connected to third and fourth antenna elements through second comparator component and first and second crossover components. Fourth input is connected to the first and second antenna elements through second crossover component and the first comparator component, where a feed network provides sum and difference beam distributions across an antenna array responsive to power being applied at first and second input ports.
Filed: 7/24/2012
Application Number: US13556348A
Tech ID: SD 11571.0
This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention.
Data from Derwent World Patents Index, provided by Clarivate
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